/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 EqDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 10:49:58,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 10:49:58,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 10:49:58,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 10:49:58,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 10:49:58,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 10:49:58,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 10:49:58,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 10:49:58,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 10:49:58,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 10:49:58,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 10:49:58,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 10:49:58,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 10:49:58,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 10:49:58,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 10:49:58,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 10:49:58,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 10:49:58,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 10:49:58,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 10:49:58,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 10:49:58,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 10:49:58,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 10:49:58,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 10:49:58,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 10:49:58,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 10:49:58,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 10:49:58,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 10:49:58,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 10:49:58,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 10:49:58,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 10:49:58,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 10:49:58,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 10:49:58,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 10:49:58,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 10:49:58,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 10:49:58,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 10:49:58,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 10:49:58,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 10:49:58,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 10:49:58,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 10:49:58,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 10:49:58,947 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 [2023-04-01 10:49:58,969 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 10:49:58,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 10:49:58,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 10:49:58,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 10:49:58,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 10:49:58,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 10:49:58,971 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 10:49:58,971 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 10:49:58,971 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 10:49:58,971 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 10:49:58,972 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 10:49:58,972 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 10:49:58,972 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 10:49:58,972 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 10:49:58,972 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 10:49:58,972 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 10:49:58,972 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 10:49:58,972 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 10:49:58,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 10:49:58,973 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 10:49:58,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 10:49:58,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 10:49:58,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 10:49:58,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 10:49:58,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 10:49:58,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 10:49:58,974 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 10:49:58,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 10:49:58,974 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 10:49:58,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 10:49:58,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 10:49:58,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 10:49:58,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:49:58,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 10:49:58,974 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 10:49:58,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 10:49:58,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 10:49:58,975 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 10:49:58,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 10:49:58,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 10:49:58,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 10:49:58,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 10:49:59,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 10:49:59,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 10:49:59,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 10:49:59,190 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 10:49:59,191 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 10:49:59,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2023-04-01 10:50:00,241 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 10:50:00,401 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 10:50:00,401 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2023-04-01 10:50:00,406 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f17a49f39/b284b3baa3ea4fbf8921d5eff888d11e/FLAG39bc1afb1 [2023-04-01 10:50:00,418 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f17a49f39/b284b3baa3ea4fbf8921d5eff888d11e [2023-04-01 10:50:00,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 10:50:00,421 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 10:50:00,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 10:50:00,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 10:50:00,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 10:50:00,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c73236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00, skipping insertion in model container [2023-04-01 10:50:00,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 10:50:00,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 10:50:00,624 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_0480.c[4489,4502] [2023-04-01 10:50:00,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:50:00,639 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 10:50:00,678 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_0480.c[4489,4502] [2023-04-01 10:50:00,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:50:00,688 INFO L208 MainTranslator]: Completed translation [2023-04-01 10:50:00,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00 WrapperNode [2023-04-01 10:50:00,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 10:50:00,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 10:50:00,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 10:50:00,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 10:50:00,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 10:50:00,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 10:50:00,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 10:50:00,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 10:50:00,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (1/1) ... [2023-04-01 10:50:00,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:50:00,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:50:00,754 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) [2023-04-01 10:50:00,759 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 [2023-04-01 10:50:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 10:50:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 10:50:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 10:50:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-04-01 10:50:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2023-04-01 10:50:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2023-04-01 10:50:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 10:50:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 10:50:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 10:50:00,859 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 10:50:00,860 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 10:50:01,198 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 10:50:01,294 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 10:50:01,294 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-04-01 10:50:01,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:50:01 BoogieIcfgContainer [2023-04-01 10:50:01,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 10:50:01,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 10:50:01,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 10:50:01,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 10:50:01,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:50:00" (1/3) ... [2023-04-01 10:50:01,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3225aa03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:50:01, skipping insertion in model container [2023-04-01 10:50:01,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:00" (2/3) ... [2023-04-01 10:50:01,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3225aa03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:50:01, skipping insertion in model container [2023-04-01 10:50:01,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:50:01" (3/3) ... [2023-04-01 10:50:01,306 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2023-04-01 10:50:01,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 10:50:01,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 10:50:01,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 10:50:01,365 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;@28617b7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 10:50:01,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 10:50:01,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 46 states have (on average 1.565217391304348) internal successors, (72), 47 states have internal predecessors, (72), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-01 10:50:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-01 10:50:01,373 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:50:01,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 10:50:01,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:50:01,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:50:01,378 INFO L85 PathProgramCache]: Analyzing trace with hash 56640109, now seen corresponding path program 1 times [2023-04-01 10:50:01,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:50:01,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639233292] [2023-04-01 10:50:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:50:01,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:50:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:50:01,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 10:50:01,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:50:01,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639233292] [2023-04-01 10:50:01,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639233292] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:50:01,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:50:01,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 10:50:01,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4065611] [2023-04-01 10:50:01,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:50:01,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 10:50:01,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:50:01,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 10:50:01,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 10:50:01,525 INFO L87 Difference]: Start difference. First operand has 59 states, 46 states have (on average 1.565217391304348) internal successors, (72), 47 states have internal predecessors, (72), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 10:50:01,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:50:01,556 INFO L93 Difference]: Finished difference Result 111 states and 164 transitions. [2023-04-01 10:50:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 10:50:01,557 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-04-01 10:50:01,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:50:01,562 INFO L225 Difference]: With dead ends: 111 [2023-04-01 10:50:01,562 INFO L226 Difference]: Without dead ends: 55 [2023-04-01 10:50:01,565 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 [2023-04-01 10:50:01,567 INFO L413 NwaCegarLoop]: 61 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, 61 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 [2023-04-01 10:50:01,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 10:50:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-04-01 10:50:01,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-04-01 10:50:01,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 44 states have (on average 1.25) internal successors, (55), 44 states have internal predecessors, (55), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-01 10:50:01,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2023-04-01 10:50:01,593 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 16 [2023-04-01 10:50:01,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:50:01,594 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2023-04-01 10:50:01,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 10:50:01,594 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2023-04-01 10:50:01,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-01 10:50:01,595 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:50:01,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 10:50:01,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 10:50:01,595 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:50:01,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:50:01,596 INFO L85 PathProgramCache]: Analyzing trace with hash 766671872, now seen corresponding path program 1 times [2023-04-01 10:50:01,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:50:01,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027028807] [2023-04-01 10:50:01,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:50:01,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:50:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:50:01,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 10:50:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:50:01,665 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 10:50:01,666 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 10:50:01,667 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 10:50:01,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 10:50:01,674 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 10:50:01,677 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 10:50:01,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 10:50:01 BoogieIcfgContainer [2023-04-01 10:50:01,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 10:50:01,700 INFO L158 Benchmark]: Toolchain (without parser) took 1278.42ms. Allocated memory was 221.2MB in the beginning and 289.4MB in the end (delta: 68.2MB). Free memory was 157.6MB in the beginning and 194.7MB in the end (delta: -37.1MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-04-01 10:50:01,700 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 221.2MB. Free memory is still 170.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:50:01,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.55ms. Allocated memory is still 221.2MB. Free memory was 157.3MB in the beginning and 144.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-01 10:50:01,701 INFO L158 Benchmark]: Boogie Preprocessor took 37.58ms. Allocated memory is still 221.2MB. Free memory was 144.2MB in the beginning and 141.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 10:50:01,701 INFO L158 Benchmark]: RCFGBuilder took 573.12ms. Allocated memory was 221.2MB in the beginning and 289.4MB in the end (delta: 68.2MB). Free memory was 141.6MB in the beginning and 228.2MB in the end (delta: -86.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-04-01 10:50:01,702 INFO L158 Benchmark]: TraceAbstraction took 397.19ms. Allocated memory is still 289.4MB. Free memory was 227.7MB in the beginning and 194.7MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-04-01 10:50:01,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 221.2MB. Free memory is still 170.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 264.55ms. Allocated memory is still 221.2MB. Free memory was 157.3MB in the beginning and 144.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.58ms. Allocated memory is still 221.2MB. Free memory was 144.2MB in the beginning and 141.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 573.12ms. Allocated memory was 221.2MB in the beginning and 289.4MB in the end (delta: 68.2MB). Free memory was 141.6MB in the beginning and 228.2MB in the end (delta: -86.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 397.19ms. Allocated memory is still 289.4MB. Free memory was 227.7MB in the beginning and 194.7MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. 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: 184]: 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 183, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of someBinaryArithmeticFLOAToperation at line 105. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L83-L90] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; [L179] float x = 1.0f; VAL [one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L180] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=1, one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L93] float z, p, q, r, w, s, c, df; [L94] __int32_t hx, ix; VAL [\old(x)=1, one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L96] ieee_float_shape_type gf_u; [L97] gf_u.value = (x) [L98] EXPR gf_u.word [L98] (hx) = gf_u.word [L100] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=-1082130432, ix=1065353216, one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L101] COND TRUE ix == 0x3f800000 [L102] COND FALSE !(hx > 0) [L105] return pi + (float)2.0 * pio2_lo_acos; VAL [\old(x)=1, \result=0, hx=-1082130432, ix=1065353216, one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L180] RET, EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L180] float res = __ieee754_acosf(x); [L183] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res == 0.0f && __signbit_float(res) == 0=0, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L183] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L184] reach_error() VAL [one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 61 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, 61 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=59occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 [2023-04-01 10:50:01,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...