/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/double_req_bl_0530a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:58:19,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:58:19,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:58:19,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 22:58:19,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 22:58:19,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 22:58:19,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 22:58:19,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 22:58:19,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 22:58:19,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 22:58:19,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 22:58:19,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 22:58:19,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:58:19,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:58:19,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:58:19,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:58:19,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:58:19,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:58:19,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:58:19,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:58:19,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:58:19,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:58:19,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:58:19,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:58:19,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 22:58:19,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 22:58:19,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 22:58:19,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 22:58:19,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 22:58:19,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 22:58:19,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 22:58:19,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 22:58:19,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 22:58:19,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 22:58:19,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 22:58:19,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 22:58:19,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 22:58:19,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 22:58:19,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:58:19,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:58:19,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:58:19,241 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 22:58:19,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:58:19,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:58:19,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:58:19,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:58:19,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:58:19,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:58:19,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:58:19,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:58:19,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:58:19,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:58:19,249 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:58:19,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:58:19,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:58:19,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:58:19,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:58:19,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:58:19,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:58:19,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:58:19,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:19,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:58:19,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:58:19,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:58:19,251 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:58:19,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:58:19,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:58:19,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:58:19,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:58:19,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:58:19,426 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:58:19,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0530a.c [2022-01-31 22:58:19,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/918931b8b/72e0f398bb724a6e979836bda92de77e/FLAGe1421363a [2022-01-31 22:58:19,848 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:58:19,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0530a.c [2022-01-31 22:58:19,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/918931b8b/72e0f398bb724a6e979836bda92de77e/FLAGe1421363a [2022-01-31 22:58:20,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/918931b8b/72e0f398bb724a6e979836bda92de77e [2022-01-31 22:58:20,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:58:20,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:58:20,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:20,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:58:20,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:58:20,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671546dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20, skipping insertion in model container [2022-01-31 22:58:20,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:58:20,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:58:20,478 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_0530a.c[16310,16323] [2022-01-31 22:58:20,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:20,492 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:58:20,551 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_0530a.c[16310,16323] [2022-01-31 22:58:20,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:20,567 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:58:20,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20 WrapperNode [2022-01-31 22:58:20,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:20,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:58:20,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:58:20,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:58:20,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:58:20,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:58:20,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:58:20,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:58:20,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (1/1) ... [2022-01-31 22:58:20,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:20,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:58:20,671 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 22:58:20,688 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 22:58:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2 [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2 [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tan [2022-01-31 22:58:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_double [2022-01-31 22:58:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2022-01-31 22:58:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:58:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:58:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:58:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:58:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:58:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 22:58:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2022-01-31 22:58:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:58:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2 [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2 [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tan [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure tan_double [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2022-01-31 22:58:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:58:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:58:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:58:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 22:58:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:58:20,833 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:58:20,835 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:58:21,367 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:58:21,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:58:21,375 INFO L299 CfgBuilder]: Removed 67 assume(true) statements. [2022-01-31 22:58:21,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:21 BoogieIcfgContainer [2022-01-31 22:58:21,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:58:21,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:58:21,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:58:21,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:58:21,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:58:20" (1/3) ... [2022-01-31 22:58:21,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510bab7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:21, skipping insertion in model container [2022-01-31 22:58:21,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:20" (2/3) ... [2022-01-31 22:58:21,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510bab7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:21, skipping insertion in model container [2022-01-31 22:58:21,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:21" (3/3) ... [2022-01-31 22:58:21,383 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0530a.c [2022-01-31 22:58:21,387 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:58:21,387 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:58:21,415 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:58:21,419 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 22:58:21,419 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:58:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 250 states have (on average 1.648) internal successors, (412), 251 states have internal predecessors, (412), 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 22:58:21,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-31 22:58:21,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:21,439 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 22:58:21,439 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:21,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash 96795818, now seen corresponding path program 1 times [2022-01-31 22:58:21,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:21,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734416673] [2022-01-31 22:58:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:21,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:21,494 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:21,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:58:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:21,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:58:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:21,778 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 22:58:21,779 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:58:21,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734416673] [2022-01-31 22:58:21,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [734416673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:58:21,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:58:21,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:58:21,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968610438] [2022-01-31 22:58:21,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:58:21,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:58:21,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:58:21,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:58:21,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:58:21,806 INFO L87 Difference]: Start difference. First operand has 281 states, 250 states have (on average 1.648) internal successors, (412), 251 states have internal predecessors, (412), 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 22:58:22,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:58:22,649 INFO L93 Difference]: Finished difference Result 554 states and 903 transitions. [2022-01-31 22:58:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:58:22,651 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 22:58:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:58:22,658 INFO L225 Difference]: With dead ends: 554 [2022-01-31 22:58:22,658 INFO L226 Difference]: Without dead ends: 277 [2022-01-31 22:58:22,664 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 22:58:22,666 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 340 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:58:22,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 354 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 22:58:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-01-31 22:58:22,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2022-01-31 22:58:22,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 248 states have (on average 1.375) internal successors, (341), 248 states have internal predecessors, (341), 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 22:58:22,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 376 transitions. [2022-01-31 22:58:22,758 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 376 transitions. Word has length 18 [2022-01-31 22:58:22,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:58:22,758 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 376 transitions. [2022-01-31 22:58:22,759 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 22:58:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 376 transitions. [2022-01-31 22:58:22,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-31 22:58:22,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:22,759 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 22:58:22,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:58:22,760 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:22,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:22,760 INFO L85 PathProgramCache]: Analyzing trace with hash 943791389, now seen corresponding path program 1 times [2022-01-31 22:58:22,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:22,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299313349] [2022-01-31 22:58:22,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:22,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:22,763 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:22,863 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:58:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:22,926 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:58:22,926 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:58:22,928 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:58:22,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:58:22,935 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:58:22,937 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:58:22,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:58:22 BoogieIcfgContainer [2022-01-31 22:58:22,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:58:22,949 INFO L158 Benchmark]: Toolchain (without parser) took 2740.43ms. Allocated memory was 155.2MB in the beginning and 198.2MB in the end (delta: 43.0MB). Free memory was 100.4MB in the beginning and 161.1MB in the end (delta: -60.6MB). Peak memory consumption was 86.6MB. Max. memory is 8.0GB. [2022-01-31 22:58:22,949 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:58:22,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.71ms. Allocated memory was 155.2MB in the beginning and 198.2MB in the end (delta: 43.0MB). Free memory was 100.3MB in the beginning and 156.8MB in the end (delta: -56.5MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-01-31 22:58:22,950 INFO L158 Benchmark]: Boogie Preprocessor took 71.34ms. Allocated memory is still 198.2MB. Free memory was 156.8MB in the beginning and 150.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-31 22:58:22,950 INFO L158 Benchmark]: RCFGBuilder took 737.14ms. Allocated memory is still 198.2MB. Free memory was 150.0MB in the beginning and 91.2MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2022-01-31 22:58:22,950 INFO L158 Benchmark]: TraceAbstraction took 1569.48ms. Allocated memory is still 198.2MB. Free memory was 90.7MB in the beginning and 161.1MB in the end (delta: -70.3MB). Peak memory consumption was 34.0MB. Max. memory is 8.0GB. [2022-01-31 22:58:22,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 358.71ms. Allocated memory was 155.2MB in the beginning and 198.2MB in the end (delta: 43.0MB). Free memory was 100.3MB in the beginning and 156.8MB in the end (delta: -56.5MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.34ms. Allocated memory is still 198.2MB. Free memory was 156.8MB in the beginning and 150.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 737.14ms. Allocated memory is still 198.2MB. Free memory was 150.0MB in the beginning and 91.2MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1569.48ms. Allocated memory is still 198.2MB. Free memory was 90.7MB in the beginning and 161.1MB in the end (delta: -70.3MB). Peak memory consumption was 34.0MB. 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: 659]: 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 535, overapproximation of bitwiseAnd at line 621, overapproximation of someBinaryArithmeticDOUBLEoperation at line 626, overapproximation of someBinaryDOUBLEComparisonOperation at line 658. Possible FailurePath: [L19] static const double huge_floor = 1.0e300; [L105-L107] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L176] static const int init_jk_krempio[] = {2, 3, 4, 6}; [L178-L183] 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, }; [L185-L187] static const double zero_krempio = 0.0, one_krempio = 1.0, two24_krempio = 1.67772160000000000000e+07, twon24_krempio = 5.96046447753906250000e-08; [L362-L373] 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, }; [L375-L382] 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, }; [L384-L393] 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; [L526-L537] 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, }; [L654] double x = 0.0; [L655] CALL, EXPR tan_double(x) [L612] double y[2], z = 0.0; [L613] __int32_t n, ix; [L616] ieee_double_shape_type gh_u; [L617] gh_u.value = (x) [L618] EXPR gh_u.parts.msw [L618] (ix) = gh_u.parts.msw [L621] ix &= 0x7fffffff [L622] COND FALSE !(ix <= 0x3fe921fb) [L625] COND TRUE ix >= 0x7ff00000 [L626] return x - x; [L626] return x - x; [L655] RET, EXPR tan_double(x) [L655] double res = tan_double(x); [L658] EXPR res == 0.0 && __signbit_double(res) == 0 [L658] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L659] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 355 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 340 mSDsluCounter, 354 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 384 IncrementalHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 352 mSDtfsCounter, 384 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=281occurred 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 22:58:22,988 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...