/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0530a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:01:05,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:01:05,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:01:05,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:01:05,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:01:05,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:01:05,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:01:05,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:01:05,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:01:05,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:01:05,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:01:05,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:01:05,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:01:05,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:01:05,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:01:05,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:01:05,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:01:05,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:01:05,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:01:05,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:01:05,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:01:05,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:01:05,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:01:05,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:01:05,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 23:01:05,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 23:01:05,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 23:01:05,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 23:01:05,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 23:01:05,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 23:01:05,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 23:01:05,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 23:01:05,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 23:01:05,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 23:01:05,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 23:01:05,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 23:01:05,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 23:01:05,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 23:01:05,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:01:05,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:01:05,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:01:05,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 23:01:05,315 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:01:05,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:01:05,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:01:05,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:01:05,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:01:05,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:01:05,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:01:05,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:01:05,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:01:05,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:01:05,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:01:05,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:01:05,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:01:05,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:01:05,318 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:01:05,318 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:01:05,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:01:05,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:01:05,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:01:05,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:01:05,537 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:01:05,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0530a.c [2022-01-31 23:01:05,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f80d144/76ff78919f574145a3fbfe24bd2cb6a9/FLAG5172992ba [2022-01-31 23:01:05,969 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:01:05,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0530a.c [2022-01-31 23:01:05,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f80d144/76ff78919f574145a3fbfe24bd2cb6a9/FLAG5172992ba [2022-01-31 23:01:06,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f80d144/76ff78919f574145a3fbfe24bd2cb6a9 [2022-01-31 23:01:06,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:01:06,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:01:06,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:01:06,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:01:06,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:01:06,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a78db5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06, skipping insertion in model container [2022-01-31 23:01:06,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:01:06,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:01:06,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0530a.c[15590,15603] [2022-01-31 23:01:06,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:01:06,318 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:01:06,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0530a.c[15590,15603] [2022-01-31 23:01:06,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:01:06,436 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:01:06,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06 WrapperNode [2022-01-31 23:01:06,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:01:06,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:01:06,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:01:06,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:01:06,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:01:06,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:01:06,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:01:06,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:01:06,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (1/1) ... [2022-01-31 23:01:06,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:01:06,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:01:06,571 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) [2022-01-31 23:01:06,618 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 [2022-01-31 23:01:06,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:01:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:01:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:01:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2022-01-31 23:01:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-01-31 23:01:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2022-01-31 23:01:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-01-31 23:01:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2022-01-31 23:01:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2022-01-31 23:01:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2022-01-31 23:01:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_float [2022-01-31 23:01:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2022-01-31 23:01:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:01:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:01:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:01:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:01:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:01:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 23:01:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2022-01-31 23:01:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:01:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:01:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure tan_float [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:01:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:01:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 23:01:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:01:06,809 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:01:06,810 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:01:07,362 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:01:07,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:01:07,368 INFO L299 CfgBuilder]: Removed 65 assume(true) statements. [2022-01-31 23:01:07,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:01:07 BoogieIcfgContainer [2022-01-31 23:01:07,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:01:07,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:01:07,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:01:07,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:01:07,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:01:06" (1/3) ... [2022-01-31 23:01:07,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284c4748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:01:07, skipping insertion in model container [2022-01-31 23:01:07,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:06" (2/3) ... [2022-01-31 23:01:07,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284c4748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:01:07, skipping insertion in model container [2022-01-31 23:01:07,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:01:07" (3/3) ... [2022-01-31 23:01:07,375 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530a.c [2022-01-31 23:01:07,378 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:01:07,379 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:01:07,406 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:01:07,411 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=JORDAN [2022-01-31 23:01:07,411 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:01:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 240 states have (on average 1.6416666666666666) internal successors, (394), 241 states have internal predecessors, (394), 18 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-01-31 23:01:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-31 23:01:07,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:01:07,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:01:07,431 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:01:07,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:01:07,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1817483141, now seen corresponding path program 1 times [2022-01-31 23:01:07,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:01:07,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782221489] [2022-01-31 23:01:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:01:07,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:01:07,484 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:01:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:07,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:01:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:01:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:01:07,839 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:01:07,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782221489] [2022-01-31 23:01:07,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1782221489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:01:07,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:01:07,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:01:07,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57302775] [2022-01-31 23:01:07,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:01:07,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:01:07,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:01:07,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:01:07,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:01:07,878 INFO L87 Difference]: Start difference. First operand has 271 states, 240 states have (on average 1.6416666666666666) internal successors, (394), 241 states have internal predecessors, (394), 18 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 23:01:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:01:08,839 INFO L93 Difference]: Finished difference Result 534 states and 867 transitions. [2022-01-31 23:01:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:01:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-01-31 23:01:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:01:08,856 INFO L225 Difference]: With dead ends: 534 [2022-01-31 23:01:08,856 INFO L226 Difference]: Without dead ends: 267 [2022-01-31 23:01:08,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:01:08,865 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 324 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 23:01:08,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 338 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 23:01:08,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-01-31 23:01:08,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-01-31 23:01:08,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 238 states have (on average 1.365546218487395) internal successors, (325), 238 states have internal predecessors, (325), 18 states have call successors, (18), 11 states have call predecessors, (18), 10 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-01-31 23:01:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2022-01-31 23:01:08,940 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 18 [2022-01-31 23:01:08,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:01:08,940 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2022-01-31 23:01:08,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 23:01:08,941 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2022-01-31 23:01:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-31 23:01:08,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:01:08,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:01:08,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:01:08,942 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:01:08,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:01:08,942 INFO L85 PathProgramCache]: Analyzing trace with hash 310247308, now seen corresponding path program 1 times [2022-01-31 23:01:08,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:01:08,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121217548] [2022-01-31 23:01:08,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:01:08,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:01:08,945 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:01:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:01:08,988 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:01:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:01:09,039 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:01:09,040 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:01:09,041 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:01:09,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:01:09,045 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:01:09,046 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:01:09,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:01:09 BoogieIcfgContainer [2022-01-31 23:01:09,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:01:09,059 INFO L158 Benchmark]: Toolchain (without parser) took 3052.45ms. Allocated memory was 202.4MB in the beginning and 249.6MB in the end (delta: 47.2MB). Free memory was 152.8MB in the beginning and 133.8MB in the end (delta: 19.0MB). Peak memory consumption was 67.3MB. Max. memory is 8.0GB. [2022-01-31 23:01:09,059 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 170.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:01:09,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.30ms. Allocated memory is still 202.4MB. Free memory was 152.7MB in the beginning and 162.6MB in the end (delta: -9.9MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-01-31 23:01:09,059 INFO L158 Benchmark]: Boogie Preprocessor took 108.51ms. Allocated memory is still 202.4MB. Free memory was 162.6MB in the beginning and 155.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-31 23:01:09,060 INFO L158 Benchmark]: RCFGBuilder took 823.16ms. Allocated memory is still 202.4MB. Free memory was 155.3MB in the beginning and 91.9MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2022-01-31 23:01:09,060 INFO L158 Benchmark]: TraceAbstraction took 1687.15ms. Allocated memory was 202.4MB in the beginning and 249.6MB in the end (delta: 47.2MB). Free memory was 91.3MB in the beginning and 133.8MB in the end (delta: -42.5MB). Peak memory consumption was 4.7MB. Max. memory is 8.0GB. [2022-01-31 23:01:09,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 170.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 430.30ms. Allocated memory is still 202.4MB. Free memory was 152.7MB in the beginning and 162.6MB in the end (delta: -9.9MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.51ms. Allocated memory is still 202.4MB. Free memory was 162.6MB in the beginning and 155.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 823.16ms. Allocated memory is still 202.4MB. Free memory was 155.3MB in the beginning and 91.9MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1687.15ms. Allocated memory was 202.4MB in the beginning and 249.6MB in the end (delta: 47.2MB). Free memory was 91.3MB in the beginning and 133.8MB in the end (delta: -42.5MB). Peak memory consumption was 4.7MB. 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: 629]: 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 628, overapproximation of someUnaryDOUBLEoperation at line 497, overapproximation of bitwiseAnd at line 591, overapproximation of someBinaryArithmeticFLOAToperation at line 596. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L79-L81] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L149] static const int init_jk_krempio[] = {4, 7, 9}; [L151-L155] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L157-L159] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L334-L352] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L354-L360] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L362-L371] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L491-L499] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L624] float x = 0.0f; [L625] CALL, EXPR tan_float(x) [L582] float y[2], z = 0.0; [L583] __int32_t n, ix; [L586] ieee_float_shape_type gf_u; [L587] gf_u.value = (x) [L588] EXPR gf_u.word [L588] (ix) = gf_u.word [L591] ix &= 0x7fffffff [L592] COND FALSE !(ix <= 0x3f490fda) [L595] COND TRUE !((ix) < 0x7f800000L) [L596] return x - x; [L596] return x - x; [L625] RET, EXPR tan_float(x) [L625] float res = tan_float(x); [L628] EXPR res == 0.0f && __signbit_float(res) == 0 [L628] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L629] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 274 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 338 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 368 IncrementalHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 336 mSDtfsCounter, 368 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 [2022-01-31 23:01:09,089 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...