/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=BIGGEST --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 -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:32:09,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:32:09,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:32:09,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:32:09,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:32:09,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:32:09,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:32:09,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:32:09,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:32:09,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:32:09,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:32:09,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:32:09,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:32:09,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:32:09,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:32:09,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:32:09,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:32:09,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:32:09,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:32:09,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:32:09,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:32:09,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:32:09,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:32:09,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:32:09,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:32:09,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:32:09,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:32:09,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:32:09,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:32:09,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:32:09,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:32:09,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:32:09,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:32:09,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:32:09,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:32:09,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:32:09,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:32:09,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:32:09,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:32:09,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:32:09,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:32:09,295 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 [2020-10-12 15:32:09,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:32:09,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:32:09,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:32:09,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:32:09,337 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:32:09,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:32:09,338 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:32:09,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:32:09,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:32:09,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:32:09,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:32:09,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:32:09,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:32:09,340 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:32:09,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:32:09,340 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:32:09,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:32:09,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:32:09,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:32:09,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:32:09,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:32:09,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:32:09,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:32:09,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:32:09,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:32:09,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:32:09,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:32:09,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:32:09,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:32:09,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:32:09,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:32:09,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:32:09,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:32:09,686 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:32:09,687 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:32:09,690 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-12 15:32:09,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c7e1f546/6d55ca9fc2d64a1b831eacb2ec0f3ecc/FLAG339deadaa [2020-10-12 15:32:10,326 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:32:10,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-12 15:32:10,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c7e1f546/6d55ca9fc2d64a1b831eacb2ec0f3ecc/FLAG339deadaa [2020-10-12 15:32:10,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c7e1f546/6d55ca9fc2d64a1b831eacb2ec0f3ecc [2020-10-12 15:32:10,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:32:10,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:32:10,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:32:10,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:32:10,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:32:10,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:32:10" (1/1) ... [2020-10-12 15:32:10,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cacc4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:10, skipping insertion in model container [2020-10-12 15:32:10,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:32:10" (1/1) ... [2020-10-12 15:32:10,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:32:10,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:32:11,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:32:11,150 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:32:11,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:32:11,311 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:32:11,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11 WrapperNode [2020-10-12 15:32:11,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:32:11,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:32:11,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:32:11,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:32:11,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (1/1) ... [2020-10-12 15:32:11,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (1/1) ... [2020-10-12 15:32:11,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (1/1) ... [2020-10-12 15:32:11,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (1/1) ... [2020-10-12 15:32:11,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (1/1) ... [2020-10-12 15:32:11,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (1/1) ... [2020-10-12 15:32:11,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (1/1) ... [2020-10-12 15:32:11,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:32:11,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:32:11,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:32:11,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:32:11,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (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 [2020-10-12 15:32:11,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:32:11,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:32:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-12 15:32:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-12 15:32:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-12 15:32:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-12 15:32:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-12 15:32:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-12 15:32:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-12 15:32:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-12 15:32:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-12 15:32:11,568 INFO L138 BoogieDeclarations]: Found implementation of procedure cos_float [2020-10-12 15:32:11,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:32:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:32:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-12 15:32:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-12 15:32:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:32:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-12 15:32:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:32:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:32:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:32:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-12 15:32:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-12 15:32:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-12 15:32:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-12 15:32:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-12 15:32:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-12 15:32:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-12 15:32:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-12 15:32:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-12 15:32:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure cos_float [2020-10-12 15:32:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:32:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:32:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 15:32:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-12 15:32:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:32:13,000 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:32:13,000 INFO L295 CfgBuilder]: Removed 59 assume(true) statements. [2020-10-12 15:32:13,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:32:13 BoogieIcfgContainer [2020-10-12 15:32:13,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:32:13,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:32:13,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:32:13,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:32:13,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:32:10" (1/3) ... [2020-10-12 15:32:13,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21467ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:32:13, skipping insertion in model container [2020-10-12 15:32:13,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:32:11" (2/3) ... [2020-10-12 15:32:13,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21467ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:32:13, skipping insertion in model container [2020-10-12 15:32:13,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:32:13" (3/3) ... [2020-10-12 15:32:13,019 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0320b.c [2020-10-12 15:32:13,031 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:32:13,041 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:32:13,058 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:32:13,086 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:32:13,087 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:32:13,087 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:32:13,087 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:32:13,087 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:32:13,087 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:32:13,088 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:32:13,088 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:32:13,114 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states. [2020-10-12 15:32:13,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-12 15:32:13,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:32:13,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:32:13,123 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:32:13,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:32:13,130 INFO L82 PathProgramCache]: Analyzing trace with hash -629792887, now seen corresponding path program 1 times [2020-10-12 15:32:13,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:32:13,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382979022] [2020-10-12 15:32:13,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:32:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:32:13,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:32:13,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:32:13,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:32:13,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:32:13,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-10-12 15:32:13,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:32:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:32:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 15:32:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:32:13,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:32:14,114 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 15:32:14,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:32:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:32:14,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:32:14,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:32:14,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:32:14,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:32:14,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 15:32:14,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:32:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:32:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:32:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:32:14,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:32:14,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:32:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:32:14,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:32:14,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:32:14,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 15:32:14,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:32:14,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:32:14,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:32:14,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:32:14,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 15:32:14,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:32:14,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:32:14,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:32:14,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382979022] [2020-10-12 15:32:14,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:32:14,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:32:14,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056167328] [2020-10-12 15:32:14,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:32:14,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:32:14,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:32:14,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:32:14,337 INFO L87 Difference]: Start difference. First operand 268 states. Second operand 4 states. [2020-10-12 15:32:14,544 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 15:32:15,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:32:15,589 INFO L93 Difference]: Finished difference Result 528 states and 856 transitions. [2020-10-12 15:32:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 15:32:15,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-12 15:32:15,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:32:15,607 INFO L225 Difference]: With dead ends: 528 [2020-10-12 15:32:15,607 INFO L226 Difference]: Without dead ends: 264 [2020-10-12 15:32:15,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:32:15,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-12 15:32:15,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-10-12 15:32:15,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-12 15:32:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 360 transitions. [2020-10-12 15:32:15,716 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 360 transitions. Word has length 17 [2020-10-12 15:32:15,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:32:15,716 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 360 transitions. [2020-10-12 15:32:15,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:32:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 360 transitions. [2020-10-12 15:32:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-12 15:32:15,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:32:15,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:32:15,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:32:15,718 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:32:15,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:32:15,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1869286065, now seen corresponding path program 1 times [2020-10-12 15:32:15,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:32:15,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539430424] [2020-10-12 15:32:15,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:32:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 15:32:15,810 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 15:32:15,810 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 15:32:15,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:32:15,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:32:15 BoogieIcfgContainer [2020-10-12 15:32:15,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:32:15,840 INFO L168 Benchmark]: Toolchain (without parser) took 5236.61 ms. Allocated memory was 140.5 MB in the beginning and 287.8 MB in the end (delta: 147.3 MB). Free memory was 102.5 MB in the beginning and 223.3 MB in the end (delta: -120.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-10-12 15:32:15,841 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:32:15,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.85 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 162.8 MB in the end (delta: -60.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:32:15,843 INFO L168 Benchmark]: Boogie Preprocessor took 169.23 ms. Allocated memory is still 204.5 MB. Free memory was 162.8 MB in the beginning and 154.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2020-10-12 15:32:15,844 INFO L168 Benchmark]: RCFGBuilder took 1526.75 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 154.9 MB in the beginning and 144.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 70.8 MB. Max. memory is 7.1 GB. [2020-10-12 15:32:15,845 INFO L168 Benchmark]: TraceAbstraction took 2827.21 ms. Allocated memory was 235.4 MB in the beginning and 287.8 MB in the end (delta: 52.4 MB). Free memory was 143.0 MB in the beginning and 223.3 MB in the end (delta: -80.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:32:15,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.85 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 162.8 MB in the end (delta: -60.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.23 ms. Allocated memory is still 204.5 MB. Free memory was 162.8 MB in the beginning and 154.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1526.75 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 154.9 MB in the beginning and 144.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 70.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2827.21 ms. Allocated memory was 235.4 MB in the beginning and 287.8 MB in the end (delta: 52.4 MB). Free memory was 143.0 MB in the beginning and 223.3 MB in the end (delta: -80.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 611]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 610, overapproximation of someUnaryDOUBLEoperation at line 498, overapproximation of bitwiseAnd at line 577, overapproximation of someUnaryFLOAToperation at line 606, overapproximation of someBinaryArithmeticFLOAToperation at line 582. Possible FailurePath: [L16] static const float huge_floor = 1.0e30; [L84-L86] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L156] static const int init_jk_krempio[] = {4, 7, 9}; [L158-L162] 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, }; [L164-L166] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L341-L359] 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, }; [L361-L367] 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}; [L369-L378] 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; [L498-L501] static const float half_ksin = 5.0000000000e-01, S1_ksin = -1.6666667163e-01, S2_ksin = 8.3333337680e-03, S3_ksin = -1.9841270114e-04, S4_ksin = 2.7557314297e-06, S5_ksin = -2.5050759689e-08, S6_ksin = 1.5896910177e-10; [L525-L528] static const float one_kcos = 1.0000000000e+00, C1_kcos = 4.1666667908e-02, C2_kcos = -1.3888889225e-03, C3_kcos = 2.4801587642e-05, C4_kcos = -2.7557314297e-07, C5_kcos = 2.0875723372e-09, C6_kcos = -1.1359647598e-11; [L565] static const float one_cos = 1.0; [L606] float x = -0.0f; [L607] CALL, EXPR cos_float(x) [L568] float y[2], z = 0.0; [L569] __int32_t n, ix; [L572] ieee_float_shape_type gf_u; [L573] gf_u.value = (x) [L574] EXPR gf_u.word [L574] (ix) = gf_u.word [L577] ix &= 0x7fffffff [L578] COND FALSE !(ix <= 0x3f490fd8) [L581] COND TRUE !((ix) < 0x7f800000L) [L582] return x - x; [L582] return x - x; [L607] RET, EXPR cos_float(x) [L607] float res = cos_float(x); [L610] COND TRUE res != 1.0f [L611] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 271 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 354 SDtfs, 14 SDslu, 273 SDs, 0 SdLazy, 413 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 2656 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...