/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 IntervalDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_0670.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:46:28,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:46:28,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:46:28,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:46:28,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:46:28,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:46:28,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:46:28,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:46:28,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:46:28,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:46:28,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:46:28,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:46:28,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:46:28,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:46:28,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:46:28,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:46:28,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:46:28,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:46:28,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:46:28,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:46:28,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:46:28,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:46:28,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:46:28,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:46:28,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:46:28,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:46:28,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:46:28,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:46:28,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:46:28,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:46:28,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:46:28,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:46:28,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:46:28,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:46:28,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:46:28,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:46:28,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:46:28,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:46:28,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:46:28,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:46:28,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:46:28,124 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 [2023-03-31 22:46:28,137 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:46:28,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:46:28,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:46:28,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:46:28,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:46:28,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:46:28,138 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:46:28,138 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:46:28,138 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:46:28,138 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:46:28,138 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:46:28,139 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:46:28,139 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:46:28,139 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:46:28,139 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:46:28,139 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:46:28,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:46:28,139 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:46:28,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:46:28,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:46:28,141 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:46:28,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:46:28,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:46:28,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:46:28,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:46:28,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:46:28,141 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:46:28,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:46:28,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:46:28,142 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:46:28,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:46:28,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:46:28,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:46:28,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:46:28,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:46:28,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:46:28,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:46:28,330 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:46:28,330 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:46:28,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2023-03-31 22:46:29,408 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:46:29,525 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:46:29,525 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2023-03-31 22:46:29,535 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee6a2b52/c6601f658b624dbbb1fde0802e5c1ae7/FLAG737cd7707 [2023-03-31 22:46:29,543 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee6a2b52/c6601f658b624dbbb1fde0802e5c1ae7 [2023-03-31 22:46:29,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:46:29,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:46:29,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:46:29,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:46:29,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:46:29,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b935fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29, skipping insertion in model container [2023-03-31 22:46:29,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:46:29,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:46:29,689 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_0670.c[5373,5386] [2023-03-31 22:46:29,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:46:29,699 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:46:29,724 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_0670.c[5373,5386] [2023-03-31 22:46:29,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:46:29,735 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:46:29,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29 WrapperNode [2023-03-31 22:46:29,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:46:29,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:46:29,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:46:29,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:46:29,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:46:29,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:46:29,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:46:29,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:46:29,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (1/1) ... [2023-03-31 22:46:29,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:46:29,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:46:29,814 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) [2023-03-31 22:46:29,821 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 [2023-03-31 22:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-03-31 22:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2023-03-31 22:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2023-03-31 22:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2023-03-31 22:46:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-03-31 22:46:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:46:29,909 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:46:29,911 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:46:30,297 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:46:30,381 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:46:30,381 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-03-31 22:46:30,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:46:30 BoogieIcfgContainer [2023-03-31 22:46:30,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:46:30,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:46:30,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:46:30,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:46:30,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:46:29" (1/3) ... [2023-03-31 22:46:30,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad455b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:46:30, skipping insertion in model container [2023-03-31 22:46:30,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:46:29" (2/3) ... [2023-03-31 22:46:30,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad455b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:46:30, skipping insertion in model container [2023-03-31 22:46:30,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:46:30" (3/3) ... [2023-03-31 22:46:30,388 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2023-03-31 22:46:30,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:46:30,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:46:30,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:46:30,457 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;@4fd86590, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:46:30,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:46:30,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 70 states have (on average 1.6285714285714286) internal successors, (114), 71 states have internal predecessors, (114), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-03-31 22:46:30,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-03-31 22:46:30,466 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:46:30,466 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:46:30,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:46:30,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:46:30,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1338764383, now seen corresponding path program 1 times [2023-03-31 22:46:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:46:30,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220412001] [2023-03-31 22:46:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:46:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:46:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:46:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 22:46:30,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:46:30,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220412001] [2023-03-31 22:46:30,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220412001] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:46:30,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:46:30,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 22:46:30,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538939652] [2023-03-31 22:46:30,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:46:30,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 22:46:30,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:46:30,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 22:46:30,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 22:46:30,739 INFO L87 Difference]: Start difference. First operand has 88 states, 70 states have (on average 1.6285714285714286) internal successors, (114), 71 states have internal predecessors, (114), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 22:46:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:46:30,806 INFO L93 Difference]: Finished difference Result 163 states and 255 transitions. [2023-03-31 22:46:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 22:46:30,808 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2023-03-31 22:46:30,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:46:30,812 INFO L225 Difference]: With dead ends: 163 [2023-03-31 22:46:30,812 INFO L226 Difference]: Without dead ends: 83 [2023-03-31 22:46:30,814 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 [2023-03-31 22:46:30,816 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 22:46:30,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 22:46:30,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-03-31 22:46:30,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-03-31 22:46:30,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 67 states have internal predecessors, (94), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-03-31 22:46:30,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 113 transitions. [2023-03-31 22:46:30,851 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 113 transitions. Word has length 27 [2023-03-31 22:46:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:46:30,852 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 113 transitions. [2023-03-31 22:46:30,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 22:46:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 113 transitions. [2023-03-31 22:46:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-03-31 22:46:30,854 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:46:30,854 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:46:30,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:46:30,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:46:30,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:46:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash -428403958, now seen corresponding path program 1 times [2023-03-31 22:46:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:46:30,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632274652] [2023-03-31 22:46:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:46:30,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:46:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:46:30,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 22:46:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 22:46:31,034 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 22:46:31,035 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 22:46:31,036 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 22:46:31,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 22:46:31,040 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 22:46:31,042 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 22:46:31,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 10:46:31 BoogieIcfgContainer [2023-03-31 22:46:31,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 22:46:31,077 INFO L158 Benchmark]: Toolchain (without parser) took 1531.03ms. Allocated memory is still 280.0MB. Free memory was 228.9MB in the beginning and 204.2MB in the end (delta: 24.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-03-31 22:46:31,077 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 170.9MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:46:31,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.51ms. Allocated memory is still 280.0MB. Free memory was 228.9MB in the beginning and 215.2MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-03-31 22:46:31,078 INFO L158 Benchmark]: Boogie Preprocessor took 35.41ms. Allocated memory is still 280.0MB. Free memory was 214.7MB in the beginning and 212.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 22:46:31,078 INFO L158 Benchmark]: RCFGBuilder took 611.90ms. Allocated memory is still 280.0MB. Free memory was 212.1MB in the beginning and 173.8MB in the end (delta: 38.4MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-03-31 22:46:31,079 INFO L158 Benchmark]: TraceAbstraction took 692.01ms. Allocated memory is still 280.0MB. Free memory was 173.3MB in the beginning and 204.2MB in the end (delta: -30.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:46:31,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 170.9MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 188.51ms. Allocated memory is still 280.0MB. Free memory was 228.9MB in the beginning and 215.2MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.41ms. Allocated memory is still 280.0MB. Free memory was 214.7MB in the beginning and 212.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 611.90ms. Allocated memory is still 280.0MB. Free memory was 212.1MB in the beginning and 173.8MB in the end (delta: 38.4MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * TraceAbstraction took 692.01ms. Allocated memory is still 280.0MB. Free memory was 173.3MB in the beginning and 204.2MB in the end (delta: -30.8MB). There was no memory consumed. 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: 236]: 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 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 140. Possible FailurePath: [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L120-L121] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L226] float x = __VERIFIER_nondet_float(); [L227] float y = __VERIFIER_nondet_float(); [L229] CALL, EXPR isnan_float(x) VAL [\old(x)=1000000000000000000000000000006, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L15] return x != x; [L229] RET, EXPR isnan_float(x) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, zero_atan2=0] [L229] isnan_float(x) || isnan_float(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x) || isnan_float(y)=1, isnan_float(x)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, zero_atan2=0] [L229] COND TRUE isnan_float(x) || isnan_float(y) [L232] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=1000000000000000000000000000006, \old(y)=1000000000000000000000000000011, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L124] float z; [L125] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000006, \old(y)=1000000000000000000000000000011, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, y=1000000000000000000000000000011, zero_atan2=0] [L128] ieee_float_shape_type gf_u; [L129] gf_u.value = (x) [L130] EXPR gf_u.word [L130] (hx) = gf_u.word [L132] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000006, \old(y)=1000000000000000000000000000011, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, y=1000000000000000000000000000011, zero_atan2=0] [L134] ieee_float_shape_type gf_u; [L135] gf_u.value = (y) [L136] EXPR gf_u.word [L136] (hy) = gf_u.word [L138] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000006, \old(y)=1000000000000000000000000000011, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2147483647, hy=-8388607, ix=2147483647, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, y=1000000000000000000000000000011, zero_atan2=0] [L139] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L140] return x + y; VAL [\old(x)=1000000000000000000000000000006, \old(y)=1000000000000000000000000000011, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2147483647, hy=-8388607, ix=2147483647, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, y=1000000000000000000000000000011, zero_atan2=0] [L232] RET, EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, y=1000000000000000000000000000011, zero_atan2=0] [L232] float res = __ieee754_atan2f(y, x); [L235] CALL, EXPR isnan_float(res) VAL [\old(x)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L15] return x != x; [L235] RET, EXPR isnan_float(res) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(res)=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, y=1000000000000000000000000000011, zero_atan2=0] [L235] COND TRUE !isnan_float(res) [L236] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000006, y=1000000000000000000000000000011, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 2, 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, 107 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 107 mSDtfsCounter, 12 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=88occurred 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, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 [2023-03-31 22:46:31,109 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...