/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0520.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:18:03,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:18:03,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:18:03,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-01 00:18:03,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-01 00:18:03,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-01 00:18:03,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-01 00:18:03,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-01 00:18:03,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-01 00:18:03,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-01 00:18:03,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-01 00:18:03,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-01 00:18:03,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:18:03,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:18:03,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:18:03,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:18:03,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:18:03,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:18:03,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:18:03,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:18:03,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:18:03,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:18:03,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:18:03,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:18:03,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-01 00:18:03,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-01 00:18:03,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-01 00:18:03,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-01 00:18:03,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-01 00:18:03,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-01 00:18:03,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-01 00:18:03,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-01 00:18:03,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-01 00:18:03,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-01 00:18:03,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-01 00:18:03,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-01 00:18:03,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-01 00:18:03,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-01 00:18:03,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:18:03,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:18:03,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:18:03,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:18:03,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:18:03,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:18:03,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:18:03,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:18:03,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:18:03,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:18:03,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:18:03,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:18:03,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:18:03,315 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:18:03,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:18:03,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:18:03,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:18:03,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:18:03,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:18:03,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:03,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:18:03,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:18:03,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:18:03,323 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:18:03,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:18:03,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:18:03,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:18:03,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:18:03,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:18:03,711 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:18:03,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0520.c [2022-02-01 00:18:03,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c26ff65e/516365c82bd84fd28cc3eeaa24858b00/FLAG166927e30 [2022-02-01 00:18:04,484 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:18:04,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0520.c [2022-02-01 00:18:04,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c26ff65e/516365c82bd84fd28cc3eeaa24858b00/FLAG166927e30 [2022-02-01 00:18:04,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c26ff65e/516365c82bd84fd28cc3eeaa24858b00 [2022-02-01 00:18:04,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:18:04,749 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:18:04,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:04,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:18:04,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:18:04,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:04" (1/1) ... [2022-02-01 00:18:04,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1134dfba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:04, skipping insertion in model container [2022-02-01 00:18:04,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:04" (1/1) ... [2022-02-01 00:18:04,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:18:04,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:18:05,319 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/double_req_bl_0520.c[16106,16119] [2022-02-01 00:18:05,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:05,357 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:18:05,498 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/double_req_bl_0520.c[16106,16119] [2022-02-01 00:18:05,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:05,547 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:18:05,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05 WrapperNode [2022-02-01 00:18:05,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:05,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:18:05,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:18:05,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:18:05,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (1/1) ... [2022-02-01 00:18:05,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (1/1) ... [2022-02-01 00:18:05,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (1/1) ... [2022-02-01 00:18:05,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (1/1) ... [2022-02-01 00:18:05,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (1/1) ... [2022-02-01 00:18:05,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (1/1) ... [2022-02-01 00:18:05,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (1/1) ... [2022-02-01 00:18:05,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:18:05,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:18:05,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:18:05,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:18:05,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (1/1) ... [2022-02-01 00:18:05,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:05,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:18:05,799 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) [2022-02-01 00:18:05,807 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 [2022-02-01 00:18:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:18:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:18:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:18:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-02-01 00:18:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2022-02-01 00:18:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2022-02-01 00:18:05,824 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2022-02-01 00:18:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-02-01 00:18:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2 [2022-02-01 00:18:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2 [2022-02-01 00:18:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tan [2022-02-01 00:18:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_double [2022-02-01 00:18:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:18:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:18:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:18:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:18:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:18:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2 [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2 [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tan [2022-02-01 00:18:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure tan_double [2022-02-01 00:18:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:18:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:18:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:18:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-02-01 00:18:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:18:05,932 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:18:05,933 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:18:06,506 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:18:06,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:18:06,518 INFO L299 CfgBuilder]: Removed 65 assume(true) statements. [2022-02-01 00:18:06,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:06 BoogieIcfgContainer [2022-02-01 00:18:06,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:18:06,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:18:06,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:18:06,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:18:06,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:18:04" (1/3) ... [2022-02-01 00:18:06,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461fc5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:06, skipping insertion in model container [2022-02-01 00:18:06,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:05" (2/3) ... [2022-02-01 00:18:06,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461fc5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:06, skipping insertion in model container [2022-02-01 00:18:06,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:06" (3/3) ... [2022-02-01 00:18:06,526 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0520.c [2022-02-01 00:18:06,529 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:18:06,530 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:18:06,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:18:06,563 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=QVASR [2022-02-01 00:18:06,564 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:18:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 246 states have (on average 1.646341463414634) internal successors, (405), 247 states have internal predecessors, (405), 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) [2022-02-01 00:18:06,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-02-01 00:18:06,589 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:06,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:18:06,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:06,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash -71860082, now seen corresponding path program 1 times [2022-02-01 00:18:06,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:06,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458042241] [2022-02-01 00:18:06,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:06,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:06,649 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:06,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:18:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:06,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:18:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-01 00:18:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:18:06,957 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:18:06,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458042241] [2022-02-01 00:18:06,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1458042241] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:18:06,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:18:06,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:18:06,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129290594] [2022-02-01 00:18:06,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:18:06,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:18:06,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:18:06,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:18:06,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:18:06,996 INFO L87 Difference]: Start difference. First operand has 277 states, 246 states have (on average 1.646341463414634) internal successors, (405), 247 states have internal predecessors, (405), 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 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-01 00:18:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:18:08,221 INFO L93 Difference]: Finished difference Result 546 states and 888 transitions. [2022-02-01 00:18:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:18:08,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 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 22 [2022-02-01 00:18:08,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:18:08,237 INFO L225 Difference]: With dead ends: 546 [2022-02-01 00:18:08,237 INFO L226 Difference]: Without dead ends: 273 [2022-02-01 00:18:08,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:18:08,247 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 337 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-01 00:18:08,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 350 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-01 00:18:08,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-02-01 00:18:08,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2022-02-01 00:18:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 244 states have (on average 1.3770491803278688) internal successors, (336), 244 states have internal predecessors, (336), 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) [2022-02-01 00:18:08,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 371 transitions. [2022-02-01 00:18:08,325 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 371 transitions. Word has length 22 [2022-02-01 00:18:08,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:18:08,326 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 371 transitions. [2022-02-01 00:18:08,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-01 00:18:08,326 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 371 transitions. [2022-02-01 00:18:08,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-01 00:18:08,327 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:08,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:18:08,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:18:08,328 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:08,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:08,328 INFO L85 PathProgramCache]: Analyzing trace with hash -448708698, now seen corresponding path program 1 times [2022-02-01 00:18:08,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:08,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593296744] [2022-02-01 00:18:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:08,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:08,331 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:08,432 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:18:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:08,528 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:18:08,529 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:18:08,532 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:18:08,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:18:08,536 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-01 00:18:08,538 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:18:08,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:18:08 BoogieIcfgContainer [2022-02-01 00:18:08,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:18:08,560 INFO L158 Benchmark]: Toolchain (without parser) took 3811.19ms. Allocated memory was 185.6MB in the beginning and 223.3MB in the end (delta: 37.7MB). Free memory was 132.4MB in the beginning and 93.8MB in the end (delta: 38.6MB). Peak memory consumption was 77.3MB. Max. memory is 8.0GB. [2022-02-01 00:18:08,560 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:18:08,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.46ms. Allocated memory is still 185.6MB. Free memory was 132.2MB in the beginning and 143.5MB in the end (delta: -11.3MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-02-01 00:18:08,564 INFO L158 Benchmark]: Boogie Preprocessor took 196.38ms. Allocated memory is still 185.6MB. Free memory was 143.5MB in the beginning and 137.0MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-02-01 00:18:08,566 INFO L158 Benchmark]: RCFGBuilder took 774.29ms. Allocated memory was 185.6MB in the beginning and 223.3MB in the end (delta: 37.7MB). Free memory was 136.8MB in the beginning and 168.1MB in the end (delta: -31.4MB). Peak memory consumption was 34.9MB. Max. memory is 8.0GB. [2022-02-01 00:18:08,566 INFO L158 Benchmark]: TraceAbstraction took 2038.04ms. Allocated memory is still 223.3MB. Free memory was 167.6MB in the beginning and 93.8MB in the end (delta: 73.8MB). Peak memory consumption was 73.8MB. Max. memory is 8.0GB. [2022-02-01 00:18:08,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 796.46ms. Allocated memory is still 185.6MB. Free memory was 132.2MB in the beginning and 143.5MB in the end (delta: -11.3MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 196.38ms. Allocated memory is still 185.6MB. Free memory was 143.5MB in the beginning and 137.0MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 774.29ms. Allocated memory was 185.6MB in the beginning and 223.3MB in the end (delta: 37.7MB). Free memory was 136.8MB in the beginning and 168.1MB in the end (delta: -31.4MB). Peak memory consumption was 34.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2038.04ms. Allocated memory is still 223.3MB. Free memory was 167.6MB in the beginning and 93.8MB in the end (delta: 73.8MB). Peak memory consumption was 73.8MB. 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: 648]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 537, overapproximation of someBinaryArithmeticDOUBLEoperation at line 628, overapproximation of bitwiseAnd at line 623, overapproximation of someBinaryDOUBLEComparisonOperation at line 19. Possible FailurePath: [L21] static const double huge_floor = 1.0e300; [L107-L109] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L178] static const int init_jk_krempio[] = {2, 3, 4, 6}; [L180-L185] static const double PIo2_krempio[] = { 1.57079625129699707031e+00, 7.54978941586159635335e-08, 5.39030252995776476554e-15, 3.28200341580791294123e-22, 1.27065575308067607349e-29, 1.22933308981111328932e-36, 2.73370053816464559624e-44, 2.16741683877804819444e-51, }; [L187-L189] static const double zero_krempio = 0.0, one_krempio = 1.0, two24_krempio = 1.67772160000000000000e+07, twon24_krempio = 5.96046447753906250000e-08; [L364-L375] static const __int32_t two_over_pi_rempio[] = { 0xA2F983, 0x6E4E44, 0x1529FC, 0x2757D1, 0xF534DD, 0xC0DB62, 0x95993C, 0x439041, 0xFE5163, 0xABDEBB, 0xC561B7, 0x246E3A, 0x424DD2, 0xE00649, 0x2EEA09, 0xD1921C, 0xFE1DEB, 0x1CB129, 0xA73EE8, 0x8235F5, 0x2EBB44, 0x84E99C, 0x7026B4, 0x5F7E41, 0x3991D6, 0x398353, 0x39F49C, 0x845F8B, 0xBDF928, 0x3B1FF8, 0x97FFDE, 0x05980F, 0xEF2F11, 0x8B5A0A, 0x6D1F6D, 0x367ECF, 0x27CB09, 0xB74F46, 0x3F669E, 0x5FEA2D, 0x7527BA, 0xC7EBE5, 0xF17B3D, 0x0739F7, 0x8A5292, 0xEA6BFB, 0x5FB11F, 0x8D5D08, 0x560330, 0x46FC7B, 0x6BABF0, 0xCFBC20, 0x9AF436, 0x1DA9E3, 0x91615E, 0xE61B08, 0x659985, 0x5F14A0, 0x68408D, 0xFFD880, 0x4D7327, 0x310606, 0x1556CA, 0x73A8C9, 0x60E27B, 0xC08C6B, }; [L377-L384] static const __int32_t npio2_hw_rempio[] = { 0x3FF921FB, 0x400921FB, 0x4012D97C, 0x401921FB, 0x401F6A7A, 0x4022D97C, 0x4025FDBB, 0x402921FB, 0x402C463A, 0x402F6A7A, 0x4031475C, 0x4032D97C, 0x40346B9C, 0x4035FDBB, 0x40378FDB, 0x403921FB, 0x403AB41B, 0x403C463A, 0x403DD85A, 0x403F6A7A, 0x40407E4C, 0x4041475C, 0x4042106C, 0x4042D97C, 0x4043A28C, 0x40446B9C, 0x404534AC, 0x4045FDBB, 0x4046C6CB, 0x40478FDB, 0x404858EB, 0x404921FB, }; [L386-L395] static const double zero_rempio = 0.00000000000000000000e+00, half_rempio = 5.00000000000000000000e-01, two24_rempio = 1.67772160000000000000e+07, invpio2_rempio = 6.36619772367581382433e-01, pio2_1_rempio = 1.57079632673412561417e+00, pio2_1t_rempio = 6.07710050650619224932e-11, pio2_2_rempio = 6.07710050630396597660e-11, pio2_2t_rempio = 2.02226624879595063154e-21, pio2_3_rempio = 2.02226624871116645580e-21, pio2_3t_rempio = 8.47842766036889956997e-32; [L528-L539] static const double one_ktan = 1.00000000000000000000e+00, pio4_ktan = 7.85398163397448278999e-01, pio4lo_ktan = 3.06161699786838301793e-17, T[] = { 3.33333333333334091986e-01, 1.33333333333201242699e-01, 5.39682539762260521377e-02, 2.18694882948595424599e-02, 8.86323982359930005737e-03, 3.59207910759131235356e-03, 1.45620945432529025516e-03, 5.88041240820264096874e-04, 2.46463134818469906812e-04, 7.81794442939557092300e-05, 7.14072491382608190305e-05, -1.85586374855275456654e-05, 2.59073051863633712884e-05, }; [L643] double x = 0.0 / 0.0; [L644] CALL, EXPR tan_double(x) [L614] double y[2], z = 0.0; [L615] __int32_t n, ix; [L618] ieee_double_shape_type gh_u; [L619] gh_u.value = (x) [L620] EXPR gh_u.parts.msw [L620] (ix) = gh_u.parts.msw [L623] ix &= 0x7fffffff [L624] COND FALSE !(ix <= 0x3fe921fb) [L627] COND TRUE ix >= 0x7ff00000 [L628] return x - x; [L628] return x - x; [L644] RET, EXPR tan_double(x) [L644] double res = tan_double(x); [L647] CALL, EXPR isnan_double(res) [L19] return x != x; [L647] RET, EXPR isnan_double(res) [L647] COND TRUE !isnan_double(res) [L648] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 280 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 352 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 337 mSDsluCounter, 350 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 377 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 348 mSDtfsCounter, 377 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred 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 [2022-02-01 00:18:08,608 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...