/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=NARROWEST --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 [2020-10-13 10:19:21,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:19:21,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:19:21,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:19:21,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:19:21,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:19:21,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:19:21,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:19:21,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:19:21,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:19:21,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:19:21,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:19:21,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:19:21,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:19:21,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:19:21,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:19:21,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:19:21,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:19:21,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:19:21,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:19:21,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:19:21,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:19:21,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:19:21,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:19:21,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:19:21,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:19:21,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:19:21,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:19:21,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:19:21,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:19:21,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:19:21,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:19:21,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:19:21,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:19:21,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:19:21,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:19:21,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:19:21,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:19:21,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:19:21,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:19:21,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:19:21,454 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 [2020-10-13 10:19:21,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:19:21,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:19:21,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:19:21,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:19:21,477 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:19:21,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:19:21,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:19:21,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:19:21,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:19:21,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:19:21,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:19:21,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:19:21,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:19:21,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:19:21,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:19:21,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:19:21,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:19:21,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:19:21,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:19:21,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:19:21,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:19:21,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:19:21,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:19:21,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:19:21,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:19:21,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:19:21,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:19:21,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:19:21,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:19:21,482 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:19:21,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:19:21,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:19:21,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:19:21,802 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:19:21,803 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:19:21,804 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-13 10:19:21,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1bc4edb4/61f2f4520d4445b18024f30f4c040b8d/FLAGb93ad0a29 [2020-10-13 10:19:22,372 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:19:22,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2020-10-13 10:19:22,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1bc4edb4/61f2f4520d4445b18024f30f4c040b8d/FLAGb93ad0a29 [2020-10-13 10:19:22,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1bc4edb4/61f2f4520d4445b18024f30f4c040b8d [2020-10-13 10:19:22,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:19:22,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:19:22,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:19:22,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:19:22,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:19:22,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:19:22" (1/1) ... [2020-10-13 10:19:22,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28cbdd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:22, skipping insertion in model container [2020-10-13 10:19:22,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:19:22" (1/1) ... [2020-10-13 10:19:22,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:19:22,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:19:23,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:19:23,232 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:19:23,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:19:23,425 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:19:23,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23 WrapperNode [2020-10-13 10:19:23,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:19:23,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:19:23,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:19:23,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:19:23,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (1/1) ... [2020-10-13 10:19:23,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (1/1) ... [2020-10-13 10:19:23,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (1/1) ... [2020-10-13 10:19:23,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (1/1) ... [2020-10-13 10:19:23,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (1/1) ... [2020-10-13 10:19:23,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (1/1) ... [2020-10-13 10:19:23,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (1/1) ... [2020-10-13 10:19:23,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:19:23,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:19:23,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:19:23,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:19:23,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (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 [2020-10-13 10:19:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:19:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:19:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-13 10:19:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-13 10:19:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-13 10:19:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-13 10:19:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-13 10:19:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-13 10:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-13 10:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-13 10:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-13 10:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure cos_float [2020-10-13 10:19:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:19:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:19:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-13 10:19:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-13 10:19:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:19:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-13 10:19:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:19:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:19:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:19:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-13 10:19:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-13 10:19:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-13 10:19:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-13 10:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-13 10:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-13 10:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-13 10:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-13 10:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-13 10:19:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure cos_float [2020-10-13 10:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 10:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-13 10:19:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:19:25,027 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:19:25,027 INFO L295 CfgBuilder]: Removed 59 assume(true) statements. [2020-10-13 10:19:25,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:19:25 BoogieIcfgContainer [2020-10-13 10:19:25,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:19:25,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:19:25,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:19:25,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:19:25,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:19:22" (1/3) ... [2020-10-13 10:19:25,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6957e4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:19:25, skipping insertion in model container [2020-10-13 10:19:25,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:23" (2/3) ... [2020-10-13 10:19:25,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6957e4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:19:25, skipping insertion in model container [2020-10-13 10:19:25,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:19:25" (3/3) ... [2020-10-13 10:19:25,041 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0320b.c [2020-10-13 10:19:25,051 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:19:25,059 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:19:25,072 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:19:25,097 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:19:25,097 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:19:25,097 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:19:25,097 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:19:25,098 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:19:25,098 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:19:25,098 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:19:25,098 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:19:25,123 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states. [2020-10-13 10:19:25,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-13 10:19:25,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:19:25,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:19:25,131 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:19:25,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:19:25,137 INFO L82 PathProgramCache]: Analyzing trace with hash -629792887, now seen corresponding path program 1 times [2020-10-13 10:19:25,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:19:25,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606553800] [2020-10-13 10:19:25,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:19:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:25,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:25,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:25,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:19:25,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:19:25,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-13 10:19:25,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:25,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:25,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 10:19:25,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:25,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:19:26,000 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 10:19:26,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:19:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:26,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:26,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:26,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:19:26,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:19:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 10:19:26,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:19:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:19:26,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:19:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:26,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:26,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:26,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 10:19:26,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:19:26,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:19:26,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:26,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:26,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:19:26,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:26,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:19:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:19:26,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606553800] [2020-10-13 10:19:26,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:19:26,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:19:26,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009624547] [2020-10-13 10:19:26,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:19:26,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:19:26,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:19:26,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:19:26,201 INFO L87 Difference]: Start difference. First operand 268 states. Second operand 4 states. [2020-10-13 10:19:26,397 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 10:19:27,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:19:27,383 INFO L93 Difference]: Finished difference Result 528 states and 856 transitions. [2020-10-13 10:19:27,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 10:19:27,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-13 10:19:27,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:19:27,401 INFO L225 Difference]: With dead ends: 528 [2020-10-13 10:19:27,401 INFO L226 Difference]: Without dead ends: 264 [2020-10-13 10:19:27,408 INFO L675 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 [2020-10-13 10:19:27,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-13 10:19:27,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-10-13 10:19:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-13 10:19:27,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 360 transitions. [2020-10-13 10:19:27,482 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 360 transitions. Word has length 17 [2020-10-13 10:19:27,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:19:27,483 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 360 transitions. [2020-10-13 10:19:27,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:19:27,483 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 360 transitions. [2020-10-13 10:19:27,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-13 10:19:27,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:19:27,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:19:27,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:19:27,485 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:19:27,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:19:27,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1869286065, now seen corresponding path program 1 times [2020-10-13 10:19:27,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:19:27,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095639879] [2020-10-13 10:19:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:19:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:19:27,594 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:19:27,594 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:19:27,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:19:27,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:19:27 BoogieIcfgContainer [2020-10-13 10:19:27,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:19:27,627 INFO L168 Benchmark]: Toolchain (without parser) took 4913.53 ms. Allocated memory was 147.8 MB in the beginning and 285.7 MB in the end (delta: 137.9 MB). Free memory was 102.3 MB in the beginning and 212.7 MB in the end (delta: -110.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:27,628 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 10:19:27,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.81 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 102.1 MB in the beginning and 162.3 MB in the end (delta: -60.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:27,630 INFO L168 Benchmark]: Boogie Preprocessor took 138.43 ms. Allocated memory is still 203.9 MB. Free memory was 162.3 MB in the beginning and 154.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:27,631 INFO L168 Benchmark]: RCFGBuilder took 1467.84 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 154.4 MB in the beginning and 143.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 69.8 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:27,632 INFO L168 Benchmark]: TraceAbstraction took 2590.85 ms. Allocated memory was 234.4 MB in the beginning and 285.7 MB in the end (delta: 51.4 MB). Free memory was 143.1 MB in the beginning and 212.7 MB in the end (delta: -69.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:19:27,635 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.81 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 102.1 MB in the beginning and 162.3 MB in the end (delta: -60.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.43 ms. Allocated memory is still 203.9 MB. Free memory was 162.3 MB in the beginning and 154.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1467.84 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 154.4 MB in the beginning and 143.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 69.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2590.85 ms. Allocated memory was 234.4 MB in the beginning and 285.7 MB in the end (delta: 51.4 MB). Free memory was 143.1 MB in the beginning and 212.7 MB in the end (delta: -69.6 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: 2.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.2s, 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, 0.3s 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, 0.7s 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...