/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_0250a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 21:24:21,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 21:24:21,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 21:24:21,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 21:24:21,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 21:24:21,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 21:24:21,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 21:24:21,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 21:24:21,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 21:24:21,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 21:24:21,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 21:24:21,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 21:24:21,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 21:24:21,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 21:24:21,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 21:24:21,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 21:24:21,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 21:24:21,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 21:24:21,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 21:24:21,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 21:24:21,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 21:24:21,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 21:24:21,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 21:24:21,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 21:24:21,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 21:24:21,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 21:24:21,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 21:24:21,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 21:24:21,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 21:24:21,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 21:24:21,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 21:24:21,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 21:24:21,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 21:24:21,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 21:24:21,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 21:24:21,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 21:24:21,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 21:24:21,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 21:24:21,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 21:24:21,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 21:24:21,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 21:24:21,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 21:24:21,950 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 21:24:21,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 21:24:21,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 21:24:21,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 21:24:21,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 21:24:21,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 21:24:21,951 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 21:24:21,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 21:24:21,951 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 21:24:21,951 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 21:24:21,952 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 21:24:21,952 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 21:24:21,952 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 21:24:21,952 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 21:24:21,952 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 21:24:21,953 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 21:24:21,953 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 21:24:21,953 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 21:24:21,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 21:24:21,953 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 21:24:21,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 21:24:21,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 21:24:21,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 21:24:21,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 21:24:21,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 21:24:21,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 21:24:21,954 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 21:24:21,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 21:24:21,954 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 21:24:21,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 21:24:21,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 21:24:21,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 21:24:21,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:24:21,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 21:24:21,955 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 21:24:21,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 21:24:21,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 21:24:21,955 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 21:24:21,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 21:24:21,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 21:24:21,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 21:24:21,956 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 21:24:22,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 21:24:22,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 21:24:22,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 21:24:22,116 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 21:24:22,116 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 21:24:22,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0250a.c [2023-04-02 21:24:23,068 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 21:24:23,278 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 21:24:23,279 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c [2023-04-02 21:24:23,289 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8bf3fad0/0fa4ec0016eb4d84a821cef20f0d4e57/FLAG616899909 [2023-04-02 21:24:23,679 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8bf3fad0/0fa4ec0016eb4d84a821cef20f0d4e57 [2023-04-02 21:24:23,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 21:24:23,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 21:24:23,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 21:24:23,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 21:24:23,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 21:24:23,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c24c799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23, skipping insertion in model container [2023-04-02 21:24:23,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 21:24:23,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 21:24:23,808 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c[5433,5446] [2023-04-02 21:24:23,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:24:23,816 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 21:24:23,839 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c[5433,5446] [2023-04-02 21:24:23,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:24:23,848 INFO L208 MainTranslator]: Completed translation [2023-04-02 21:24:23,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23 WrapperNode [2023-04-02 21:24:23,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 21:24:23,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 21:24:23,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 21:24:23,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 21:24:23,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 21:24:23,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 21:24:23,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 21:24:23,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 21:24:23,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (1/1) ... [2023-04-02 21:24:23,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:24:23,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:24:23,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 21:24:23,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 21:24:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 21:24:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 21:24:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 21:24:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2023-04-02 21:24:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-04-02 21:24:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-04-02 21:24:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2023-04-02 21:24:23,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2023-04-02 21:24:23,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 21:24:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 21:24:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 21:24:24,072 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 21:24:24,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 21:24:24,436 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 21:24:24,597 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 21:24:24,598 INFO L302 CfgBuilder]: Removed 20 assume(true) statements. [2023-04-02 21:24:24,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:24:24 BoogieIcfgContainer [2023-04-02 21:24:24,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 21:24:24,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 21:24:24,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 21:24:24,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 21:24:24,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 09:24:23" (1/3) ... [2023-04-02 21:24:24,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e92e935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:24:24, skipping insertion in model container [2023-04-02 21:24:24,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:24:23" (2/3) ... [2023-04-02 21:24:24,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e92e935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:24:24, skipping insertion in model container [2023-04-02 21:24:24,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:24:24" (3/3) ... [2023-04-02 21:24:24,605 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a.c [2023-04-02 21:24:24,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 21:24:24,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 21:24:24,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 21:24:24,662 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ed98767, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 21:24:24,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 21:24:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 52 states have internal predecessors, (80), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-02 21:24:24,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-04-02 21:24:24,672 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:24:24,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:24:24,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:24:24,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:24:24,678 INFO L85 PathProgramCache]: Analyzing trace with hash -963323626, now seen corresponding path program 1 times [2023-04-02 21:24:24,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:24:24,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563590491] [2023-04-02 21:24:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:24:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:24:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:24:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:24:24,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:24:24,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563590491] [2023-04-02 21:24:24,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563590491] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:24:24,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 21:24:24,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-02 21:24:24,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576566286] [2023-04-02 21:24:24,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:24:24,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-02 21:24:24,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:24:24,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-02 21:24:24,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-02 21:24:24,869 INFO L87 Difference]: Start difference. First operand has 65 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 52 states have internal predecessors, (80), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 21:24:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:24:24,913 INFO L93 Difference]: Finished difference Result 123 states and 179 transitions. [2023-04-02 21:24:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-02 21:24:24,915 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2023-04-02 21:24:24,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:24:24,922 INFO L225 Difference]: With dead ends: 123 [2023-04-02 21:24:24,922 INFO L226 Difference]: Without dead ends: 61 [2023-04-02 21:24:24,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-02 21:24:24,928 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 21:24:24,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 21:24:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-04-02 21:24:24,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-04-02 21:24:24,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-02 21:24:24,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2023-04-02 21:24:24,959 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 19 [2023-04-02 21:24:24,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:24:24,960 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2023-04-02 21:24:24,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 21:24:24,961 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2023-04-02 21:24:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-02 21:24:24,962 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:24:24,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:24:24,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 21:24:24,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:24:24,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:24:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2006743315, now seen corresponding path program 1 times [2023-04-02 21:24:24,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:24:24,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133245435] [2023-04-02 21:24:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:24:24,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:24:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 21:24:25,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 21:24:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 21:24:25,080 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-02 21:24:25,081 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 21:24:25,082 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 21:24:25,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 21:24:25,086 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 21:24:25,088 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 21:24:25,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 09:24:25 BoogieIcfgContainer [2023-04-02 21:24:25,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 21:24:25,126 INFO L158 Benchmark]: Toolchain (without parser) took 1440.86ms. Allocated memory was 188.7MB in the beginning and 269.5MB in the end (delta: 80.7MB). Free memory was 148.8MB in the beginning and 193.4MB in the end (delta: -44.6MB). Peak memory consumption was 36.0MB. Max. memory is 8.0GB. [2023-04-02 21:24:25,127 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory was 137.2MB in the beginning and 137.2MB in the end (delta: 70.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:24:25,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.66ms. Allocated memory is still 188.7MB. Free memory was 148.3MB in the beginning and 134.3MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-02 21:24:25,130 INFO L158 Benchmark]: Boogie Preprocessor took 60.69ms. Allocated memory is still 188.7MB. Free memory was 134.3MB in the beginning and 131.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 21:24:25,131 INFO L158 Benchmark]: RCFGBuilder took 689.30ms. Allocated memory was 188.7MB in the beginning and 269.5MB in the end (delta: 80.7MB). Free memory was 131.5MB in the beginning and 228.0MB in the end (delta: -96.5MB). Peak memory consumption was 42.3MB. Max. memory is 8.0GB. [2023-04-02 21:24:25,132 INFO L158 Benchmark]: TraceAbstraction took 524.67ms. Allocated memory is still 269.5MB. Free memory was 227.0MB in the beginning and 193.4MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-04-02 21:24:25,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory was 137.2MB in the beginning and 137.2MB in the end (delta: 70.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 162.66ms. Allocated memory is still 188.7MB. Free memory was 148.3MB in the beginning and 134.3MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.69ms. Allocated memory is still 188.7MB. Free memory was 134.3MB in the beginning and 131.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 689.30ms. Allocated memory was 188.7MB in the beginning and 269.5MB in the end (delta: 80.7MB). Free memory was 131.5MB in the beginning and 228.0MB in the end (delta: -96.5MB). Peak memory consumption was 42.3MB. Max. memory is 8.0GB. * TraceAbstraction took 524.67ms. Allocated memory is still 269.5MB. Free memory was 227.0MB in the beginning and 193.4MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 60, overapproximation of someUnaryDOUBLEoperation at line 149, overapproximation of someUnaryFLOAToperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 166. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L62] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L145-L153] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L230] float x = 1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L231] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=1000000000000000000000000000013, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L156] float t, w, p, q, c, r, s; [L157] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000013, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000013] [L159] ieee_float_shape_type gf_u; [L160] gf_u.value = (x) [L161] EXPR gf_u.word [L161] (hx) = gf_u.word [L163] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000013, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-1082130432, ix=1065353216, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000013] [L164] COND TRUE ix == 0x3f800000 [L166] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=1000000000000000000000000000013, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-1082130432, ix=1065353216, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000013] [L231] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=1000000000000000000000000000018, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000013] [L231] float res = __ieee754_asinf(x); [L234] CALL, EXPR isnan_float(res) VAL [\old(x)=1000000000000000000000000000018, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L60] return x != x; [L234] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000018, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000013] [L234] COND TRUE !isnan_float(res) [L235] reach_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000018, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000013] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 67 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 [2023-04-02 21:24:25,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...