/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_0490a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:46:40,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:46:40,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:46:40,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:46:40,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:46:40,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:46:40,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:46:40,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:46:40,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:46:40,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:46:40,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:46:40,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:46:40,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:46:40,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:46:40,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:46:40,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:46:40,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:46:40,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:46:40,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:46:40,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:46:40,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:46:40,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:46:40,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:46:40,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:46:40,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:46:40,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:46:40,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:46:40,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:46:40,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:46:40,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:46:40,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:46:40,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:46:40,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:46:40,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:46:40,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:46:40,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:46:40,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:46:40,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:46:40,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:46:40,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:46:40,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:46:40,286 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 04:46:40,309 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:46:40,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:46:40,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:46:40,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:46:40,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:46:40,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:46:40,311 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:46:40,311 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:46:40,311 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:46:40,311 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:46:40,312 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:46:40,312 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:46:40,312 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:46:40,312 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:46:40,312 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:46:40,312 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:46:40,312 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:46:40,312 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:46:40,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:46:40,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:46:40,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:46:40,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:46:40,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:46:40,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:46:40,314 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:46:40,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:46:40,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:46:40,314 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:46:40,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:46:40,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:46:40,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:46:40,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:46:40,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:46:40,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:46:40,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:46:40,546 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:46:40,547 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:46:40,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0490a.c [2023-04-01 04:46:41,593 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:46:41,768 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:46:41,768 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0490a.c [2023-04-01 04:46:41,775 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce8e39a6/576ca5a0bbaf40489bbd06b9335f4c6c/FLAG5d657ed61 [2023-04-01 04:46:41,790 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce8e39a6/576ca5a0bbaf40489bbd06b9335f4c6c [2023-04-01 04:46:41,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:46:41,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:46:41,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:46:41,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:46:41,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:46:41,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:46:41" (1/1) ... [2023-04-01 04:46:41,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7c6c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:41, skipping insertion in model container [2023-04-01 04:46:41,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:46:41" (1/1) ... [2023-04-01 04:46:41,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:46:41,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:46:41,997 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_0490a.c[4369,4382] [2023-04-01 04:46:42,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:46:42,011 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:46:42,035 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_0490a.c[4369,4382] [2023-04-01 04:46:42,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:46:42,045 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:46:42,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42 WrapperNode [2023-04-01 04:46:42,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:46:42,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:46:42,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:46:42,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:46:42,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,078 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:46:42,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:46:42,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:46:42,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:46:42,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (1/1) ... [2023-04-01 04:46:42,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:46:42,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:46:42,116 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 04:46:42,121 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 04:46:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:46:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:46:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:46:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-04-01 04:46:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-04-01 04:46:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2023-04-01 04:46:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:46:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:46:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:46:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:46:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:46:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-01 04:46:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-04-01 04:46:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-04-01 04:46:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:46:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:46:42,281 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:46:42,283 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:46:42,596 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:46:42,693 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:46:42,693 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-04-01 04:46:42,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:46:42 BoogieIcfgContainer [2023-04-01 04:46:42,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:46:42,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:46:42,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:46:42,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:46:42,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:46:41" (1/3) ... [2023-04-01 04:46:42,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774080fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:46:42, skipping insertion in model container [2023-04-01 04:46:42,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:46:42" (2/3) ... [2023-04-01 04:46:42,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774080fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:46:42, skipping insertion in model container [2023-04-01 04:46:42,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:46:42" (3/3) ... [2023-04-01 04:46:42,707 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490a.c [2023-04-01 04:46:42,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:46:42,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:46:42,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:46:42,757 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;@20b79b25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:46:42,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:46:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 43 states have internal predecessors, (65), 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 04:46:42,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-04-01 04:46:42,765 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:46:42,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:46:42,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:46:42,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:46:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash -949334966, now seen corresponding path program 1 times [2023-04-01 04:46:42,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:46:42,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033484413] [2023-04-01 04:46:42,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:46:42,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:46:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:46:42,914 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 04:46:42,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:46:42,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033484413] [2023-04-01 04:46:42,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033484413] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:46:42,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:46:42,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 04:46:42,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007493246] [2023-04-01 04:46:42,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:46:42,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 04:46:42,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:46:42,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 04:46:42,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:46:42,962 INFO L87 Difference]: Start difference. First operand has 55 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 43 states have internal predecessors, (65), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-01 04:46:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:46:43,018 INFO L93 Difference]: Finished difference Result 103 states and 149 transitions. [2023-04-01 04:46:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 04:46:43,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2023-04-01 04:46:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:46:43,027 INFO L225 Difference]: With dead ends: 103 [2023-04-01 04:46:43,027 INFO L226 Difference]: Without dead ends: 51 [2023-04-01 04:46:43,030 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 04:46:43,035 INFO L413 NwaCegarLoop]: 56 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, 56 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 04:46:43,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:46:43,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-04-01 04:46:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-04-01 04:46:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.25) internal successors, (50), 40 states have internal predecessors, (50), 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 04:46:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2023-04-01 04:46:43,069 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 19 [2023-04-01 04:46:43,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:46:43,069 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2023-04-01 04:46:43,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-01 04:46:43,070 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2023-04-01 04:46:43,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-01 04:46:43,070 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:46:43,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:46:43,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:46:43,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:46:43,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:46:43,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1508468911, now seen corresponding path program 1 times [2023-04-01 04:46:43,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:46:43,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727422721] [2023-04-01 04:46:43,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:46:43,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:46:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:46:43,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 04:46:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:46:43,199 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 04:46:43,200 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 04:46:43,201 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:46:43,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:46:43,205 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 04:46:43,208 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:46:43,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:46:43 BoogieIcfgContainer [2023-04-01 04:46:43,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:46:43,246 INFO L158 Benchmark]: Toolchain (without parser) took 1453.45ms. Allocated memory is still 234.9MB. Free memory was 185.9MB in the beginning and 184.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.6MB. Max. memory is 8.0GB. [2023-04-01 04:46:43,247 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:46:43,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.41ms. Allocated memory is still 234.9MB. Free memory was 185.9MB in the beginning and 172.6MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-01 04:46:43,249 INFO L158 Benchmark]: Boogie Preprocessor took 34.12ms. Allocated memory is still 234.9MB. Free memory was 172.6MB in the beginning and 170.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 04:46:43,250 INFO L158 Benchmark]: RCFGBuilder took 613.84ms. Allocated memory is still 234.9MB. Free memory was 170.2MB in the beginning and 141.2MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-04-01 04:46:43,252 INFO L158 Benchmark]: TraceAbstraction took 549.22ms. Allocated memory is still 234.9MB. Free memory was 140.5MB in the beginning and 184.1MB in the end (delta: -43.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:46:43,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 252.41ms. Allocated memory is still 234.9MB. Free memory was 185.9MB in the beginning and 172.6MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.12ms. Allocated memory is still 234.9MB. Free memory was 172.6MB in the beginning and 170.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 613.84ms. Allocated memory is still 234.9MB. Free memory was 170.2MB in the beginning and 141.2MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 549.22ms. Allocated memory is still 234.9MB. Free memory was 140.5MB in the beginning and 184.1MB in the end (delta: -43.6MB). 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: 175]: 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 89, overapproximation of someBinaryArithmeticFLOAToperation at line 108. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L86-L93] 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; [L170] float x = 1.0f / 0.0f; 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] [L171] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=1065353224, 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] [L96] float z, p, q, r, w, s, c, df; [L97] __int32_t hx, ix; VAL [\old(x)=1065353224, 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=1065353224] [L99] ieee_float_shape_type gf_u; [L100] gf_u.value = (x) [L101] EXPR gf_u.word [L101] (hx) = gf_u.word [L103] ix = hx & 0x7fffffff VAL [\old(x)=1065353224, 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=1065353224] [L104] COND TRUE ix == 0x3f800000 [L105] COND FALSE !(hx > 0) [L108] return pi + (float)2.0 * pio2_lo_acos; VAL [\old(x)=1065353224, \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=1065353224] [L171] 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=1065353224] [L171] float res = __ieee754_acosf(x); [L174] CALL, EXPR isnan_float(res) VAL [\old(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] [L15] return x != x; [L174] RET, EXPR isnan_float(res) VAL [isnan_float(res)=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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=1065353224] [L174] COND TRUE !isnan_float(res) [L175] 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=1065353224] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 56 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, 56 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=55occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-04-01 04:46:43,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...