/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0530b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:27:42,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:27:42,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:27:42,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:27:42,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:27:42,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:27:42,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:27:42,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:27:42,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:27:42,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:27:42,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:27:42,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:27:42,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:27:42,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:27:42,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:27:42,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:27:42,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:27:42,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:27:42,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:27:42,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:27:42,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:27:42,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:27:42,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:27:42,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:27:42,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:27:42,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:27:42,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:27:42,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:27:42,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:27:42,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:27:42,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:27:42,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:27:42,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:27:42,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:27:42,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:27:42,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:27:42,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:27:42,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:27:42,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:27:42,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:27:42,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:27:42,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 14:27:42,781 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:27:42,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:27:42,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:27:42,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:27:42,797 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:27:42,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:27:42,797 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:27:42,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:27:42,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:27:42,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:27:42,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:27:42,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:27:42,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:27:42,802 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:27:42,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:27:42,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:27:42,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:27:42,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:27:42,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:27:42,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:27:42,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:27:42,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:27:42,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:27:42,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:27:42,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:27:42,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:27:42,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:27:42,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:27:42,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:27:42,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:27:43,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:27:43,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:27:43,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:27:43,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:27:43,205 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:27:43,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0530b.c [2020-10-28 14:27:43,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c5e89f5b/ad18253f3ce3461384563b9765574775/FLAG0f6593514 [2020-10-28 14:27:44,033 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:27:44,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0530b.c [2020-10-28 14:27:44,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c5e89f5b/ad18253f3ce3461384563b9765574775/FLAG0f6593514 [2020-10-28 14:27:44,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c5e89f5b/ad18253f3ce3461384563b9765574775 [2020-10-28 14:27:44,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:27:44,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:27:44,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:44,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:27:44,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:27:44,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:44" (1/1) ... [2020-10-28 14:27:44,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e0d051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:44, skipping insertion in model container [2020-10-28 14:27:44,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:44" (1/1) ... [2020-10-28 14:27:44,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:27:44,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:27:44,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:44,862 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:27:45,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:45,148 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:27:45,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45 WrapperNode [2020-10-28 14:27:45,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:45,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:27:45,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:27:45,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:27:45,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (1/1) ... [2020-10-28 14:27:45,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (1/1) ... [2020-10-28 14:27:45,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (1/1) ... [2020-10-28 14:27:45,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (1/1) ... [2020-10-28 14:27:45,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (1/1) ... [2020-10-28 14:27:45,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (1/1) ... [2020-10-28 14:27:45,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (1/1) ... [2020-10-28 14:27:45,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:27:45,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:27:45,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:27:45,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:27:45,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:27:45,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:27:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:27:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:27:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-28 14:27:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-28 14:27:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-28 14:27:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-28 14:27:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-28 14:27:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-28 14:27:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2020-10-28 14:27:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_float [2020-10-28 14:27:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-28 14:27:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:27:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:27:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:27:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:27:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:27:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-28 14:27:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-28 14:27:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:27:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:27:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:27:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:27:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:27:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-28 14:27:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-28 14:27:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-28 14:27:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-28 14:27:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-28 14:27:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2020-10-28 14:27:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure tan_float [2020-10-28 14:27:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-28 14:27:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:27:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:27:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:27:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:27:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:27:46,986 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:27:46,986 INFO L298 CfgBuilder]: Removed 65 assume(true) statements. [2020-10-28 14:27:46,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:46 BoogieIcfgContainer [2020-10-28 14:27:46,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:27:46,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:27:46,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:27:46,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:27:46,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:27:44" (1/3) ... [2020-10-28 14:27:46,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d857be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:46, skipping insertion in model container [2020-10-28 14:27:46,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:45" (2/3) ... [2020-10-28 14:27:46,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d857be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:46, skipping insertion in model container [2020-10-28 14:27:46,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:46" (3/3) ... [2020-10-28 14:27:46,998 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2020-10-28 14:27:47,010 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:27:47,016 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:27:47,030 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:27:47,059 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:27:47,059 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:27:47,059 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:27:47,059 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:27:47,059 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:27:47,060 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:27:47,060 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:27:47,060 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:27:47,083 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-10-28 14:27:47,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 14:27:47,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:47,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:27:47,091 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:47,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:47,098 INFO L82 PathProgramCache]: Analyzing trace with hash 3396939, now seen corresponding path program 1 times [2020-10-28 14:27:47,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:47,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929869433] [2020-10-28 14:27:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:47,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:47,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:47,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 14:27:47,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:47,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-10-28 14:27:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:47,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 14:27:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:27:48,226 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-28 14:27:48,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:27:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:48,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:48,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:48,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:27:48,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-28 14:27:48,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:48,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:27:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:27:48,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:27:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:48,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:48,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:48,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 14:27:48,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:48,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 14:27:48,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:48,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:27:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:48,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:27:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:27:48,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929869433] [2020-10-28 14:27:48,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:27:48,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:27:48,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813956205] [2020-10-28 14:27:48,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:27:48,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:27:48,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:27:48,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:27:48,452 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 4 states. [2020-10-28 14:27:48,622 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-28 14:27:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:27:49,682 INFO L93 Difference]: Finished difference Result 539 states and 873 transitions. [2020-10-28 14:27:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:27:49,684 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-28 14:27:49,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:27:49,698 INFO L225 Difference]: With dead ends: 539 [2020-10-28 14:27:49,699 INFO L226 Difference]: Without dead ends: 268 [2020-10-28 14:27:49,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:27:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-28 14:27:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2020-10-28 14:27:49,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-28 14:27:49,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 361 transitions. [2020-10-28 14:27:49,782 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 361 transitions. Word has length 19 [2020-10-28 14:27:49,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:27:49,783 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 361 transitions. [2020-10-28 14:27:49,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:27:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 361 transitions. [2020-10-28 14:27:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 14:27:49,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:49,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:27:49,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:27:49,785 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:49,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:49,786 INFO L82 PathProgramCache]: Analyzing trace with hash 989773821, now seen corresponding path program 1 times [2020-10-28 14:27:49,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:49,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362741210] [2020-10-28 14:27:49,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:27:49,892 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:27:49,893 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:27:49,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:27:49,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:27:49 BoogieIcfgContainer [2020-10-28 14:27:49,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:27:49,924 INFO L168 Benchmark]: Toolchain (without parser) took 5638.10 ms. Allocated memory was 163.6 MB in the beginning and 233.8 MB in the end (delta: 70.3 MB). Free memory was 119.4 MB in the beginning and 97.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 93.4 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:49,925 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 163.6 MB. Free memory is still 138.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:27:49,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.03 ms. Allocated memory is still 163.6 MB. Free memory was 118.6 MB in the beginning and 142.2 MB in the end (delta: -23.6 MB). Peak memory consumption was 36.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:49,927 INFO L168 Benchmark]: Boogie Preprocessor took 278.28 ms. Allocated memory is still 163.6 MB. Free memory was 142.2 MB in the beginning and 135.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:49,930 INFO L168 Benchmark]: RCFGBuilder took 1556.82 ms. Allocated memory is still 163.6 MB. Free memory was 135.9 MB in the beginning and 75.9 MB in the end (delta: 60.0 MB). Peak memory consumption was 68.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:49,931 INFO L168 Benchmark]: TraceAbstraction took 2928.09 ms. Allocated memory was 163.6 MB in the beginning and 233.8 MB in the end (delta: 70.3 MB). Free memory was 75.4 MB in the beginning and 97.5 MB in the end (delta: -22.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:49,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 163.6 MB. Free memory is still 138.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 856.03 ms. Allocated memory is still 163.6 MB. Free memory was 118.6 MB in the beginning and 142.2 MB in the end (delta: -23.6 MB). Peak memory consumption was 36.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 278.28 ms. Allocated memory is still 163.6 MB. Free memory was 142.2 MB in the beginning and 135.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1556.82 ms. Allocated memory is still 163.6 MB. Free memory was 135.9 MB in the beginning and 75.9 MB in the end (delta: 60.0 MB). Peak memory consumption was 68.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2928.09 ms. Allocated memory was 163.6 MB in the beginning and 233.8 MB in the end (delta: 70.3 MB). Free memory was 75.4 MB in the beginning and 97.5 MB in the end (delta: -22.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 628, overapproximation of someUnaryDOUBLEoperation at line 497, overapproximation of bitwiseAnd at line 591, overapproximation of someUnaryFLOAToperation at line 624, 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) == 1 [L628] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L629] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_0530b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 275 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 355 SDtfs, 16 SDslu, 276 SDs, 0 SdLazy, 410 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 2808 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...