/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:11:55,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:11:55,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:11:55,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:11:55,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:11:55,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:11:55,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:11:55,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:11:55,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:11:55,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:11:55,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:11:55,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:11:55,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:11:55,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:11:55,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:11:55,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:11:55,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:11:55,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:11:55,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:11:55,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:11:55,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:11:55,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:11:55,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:11:55,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:11:55,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 06:11:55,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:11:55,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:11:55,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:11:55,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:11:55,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:11:55,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:11:55,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:11:55,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:11:55,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:11:55,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:11:55,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:11:55,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:11:55,470 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:11:55,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:11:55,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:11:55,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:11:55,472 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:11:55,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:11:55,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:11:55,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:11:55,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:11:55,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:11:55,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:11:55,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:11:55,475 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:11:55,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:11:55,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:11:55,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:11:55,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:11:55,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:11:55,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:11:55,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:11:55,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:11:55,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:11:55,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:11:55,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:11:55,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:11:55,478 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:11:55,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:11:55,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:11:55,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:11:55,955 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:11:55,956 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:11:55,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-12-23 06:11:56,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/722c0dabf/173b0f935e6e4aa79852b14c43f1ba7b/FLAGf858b9079 [2020-12-23 06:11:56,786 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:11:56,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-12-23 06:11:56,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/722c0dabf/173b0f935e6e4aa79852b14c43f1ba7b/FLAGf858b9079 [2020-12-23 06:11:57,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/722c0dabf/173b0f935e6e4aa79852b14c43f1ba7b [2020-12-23 06:11:57,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:11:57,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:11:57,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:11:57,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:11:57,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:11:57,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2773b28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57, skipping insertion in model container [2020-12-23 06:11:57,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:11:57,160 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~0,],value] left hand side expression in assignment: lhs: VariableLHS[~ix~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~sf_u~0,],word] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~1,],value] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: VariableLHS[~ix~1,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~w~0,] left hand side expression in assignment: lhs: VariableLHS[~s1~0,] left hand side expression in assignment: lhs: VariableLHS[~s2~0,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] [2020-12-23 06:11:57,392 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2020-12-23 06:11:57,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:11:57,421 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~0,],base],StructAccessExpression[IdentifierExpression[~#gf_u~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~ix~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sf_u~0,],base],StructAccessExpression[IdentifierExpression[~#sf_u~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~1,],base],StructAccessExpression[IdentifierExpression[~#gf_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: VariableLHS[~ix~1,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~w~0,] left hand side expression in assignment: lhs: VariableLHS[~s1~0,] left hand side expression in assignment: lhs: VariableLHS[~s2~0,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] [2020-12-23 06:11:57,502 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2020-12-23 06:11:57,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:11:57,543 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:11:57,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57 WrapperNode [2020-12-23 06:11:57,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:11:57,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:11:57,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:11:57,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:11:57,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:11:57,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:11:57,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:11:57,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:11:57,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... [2020-12-23 06:11:57,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:11:57,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:11:57,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:11:57,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:11:57,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 06:11:57,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:11:57,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:11:57,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-23 06:11:57,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:11:57,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-23 06:11:57,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:11:57,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:11:57,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:11:57,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-23 06:11:57,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:11:58,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:11:58,600 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-23 06:11:58,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:58 BoogieIcfgContainer [2020-12-23 06:11:58,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:11:58,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:11:58,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:11:58,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:11:58,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:11:57" (1/3) ... [2020-12-23 06:11:58,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1209539e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:11:58, skipping insertion in model container [2020-12-23 06:11:58,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:57" (2/3) ... [2020-12-23 06:11:58,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1209539e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:11:58, skipping insertion in model container [2020-12-23 06:11:58,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:58" (3/3) ... [2020-12-23 06:11:58,612 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2020-12-23 06:11:58,619 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:11:58,625 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:11:58,646 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:11:58,676 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:11:58,676 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:11:58,676 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:11:58,677 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:11:58,677 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:11:58,677 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:11:58,677 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:11:58,677 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:11:58,694 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-12-23 06:11:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 06:11:58,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:58,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:58,704 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:58,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:58,711 INFO L82 PathProgramCache]: Analyzing trace with hash -897879539, now seen corresponding path program 1 times [2020-12-23 06:11:58,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:58,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912696404] [2020-12-23 06:11:58,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:11:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:11:58,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912696404] [2020-12-23 06:11:58,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:11:58,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 06:11:58,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155826277] [2020-12-23 06:11:58,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 06:11:58,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:11:58,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 06:11:58,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:11:58,960 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2020-12-23 06:11:59,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:11:59,002 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2020-12-23 06:11:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 06:11:59,004 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-23 06:11:59,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:11:59,037 INFO L225 Difference]: With dead ends: 70 [2020-12-23 06:11:59,038 INFO L226 Difference]: Without dead ends: 33 [2020-12-23 06:11:59,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:11:59,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-23 06:11:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-23 06:11:59,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-23 06:11:59,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-12-23 06:11:59,101 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 10 [2020-12-23 06:11:59,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:11:59,102 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-12-23 06:11:59,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 06:11:59,103 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-12-23 06:11:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 06:11:59,104 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:59,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:59,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:11:59,105 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:59,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:59,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1061780560, now seen corresponding path program 1 times [2020-12-23 06:11:59,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:59,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283245456] [2020-12-23 06:11:59,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:11:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:11:59,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283245456] [2020-12-23 06:11:59,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:11:59,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:11:59,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424055750] [2020-12-23 06:11:59,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 06:11:59,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:11:59,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 06:11:59,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:11:59,296 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 3 states. [2020-12-23 06:11:59,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:11:59,353 INFO L93 Difference]: Finished difference Result 68 states and 91 transitions. [2020-12-23 06:11:59,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 06:11:59,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-23 06:11:59,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:11:59,355 INFO L225 Difference]: With dead ends: 68 [2020-12-23 06:11:59,355 INFO L226 Difference]: Without dead ends: 47 [2020-12-23 06:11:59,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:11:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-23 06:11:59,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2020-12-23 06:11:59,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-23 06:11:59,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2020-12-23 06:11:59,364 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 11 [2020-12-23 06:11:59,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:11:59,364 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2020-12-23 06:11:59,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 06:11:59,364 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2020-12-23 06:11:59,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 06:11:59,365 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:59,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:59,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:11:59,366 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:59,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:59,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1924506643, now seen corresponding path program 1 times [2020-12-23 06:11:59,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:59,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914615338] [2020-12-23 06:11:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:11:59,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:11:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:11:59,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:11:59,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:11:59,595 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:11:59,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:11:59,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:11:59 BoogieIcfgContainer [2020-12-23 06:11:59,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:11:59,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:11:59,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:11:59,688 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:11:59,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:58" (3/4) ... [2020-12-23 06:11:59,694 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 06:11:59,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:11:59,702 INFO L168 Benchmark]: Toolchain (without parser) took 2596.94 ms. Allocated memory is still 151.0 MB. Free memory was 127.1 MB in the beginning and 79.1 MB in the end (delta: 48.0 MB). Peak memory consumption was 47.8 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:59,704 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:11:59,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.39 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 114.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:59,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.06 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 112.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:59,715 INFO L168 Benchmark]: Boogie Preprocessor took 50.40 ms. Allocated memory is still 151.0 MB. Free memory was 112.1 MB in the beginning and 110.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:59,717 INFO L168 Benchmark]: RCFGBuilder took 911.03 ms. Allocated memory is still 151.0 MB. Free memory was 110.2 MB in the beginning and 120.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:59,718 INFO L168 Benchmark]: TraceAbstraction took 1083.05 ms. Allocated memory is still 151.0 MB. Free memory was 120.0 MB in the beginning and 79.6 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:59,720 INFO L168 Benchmark]: Witness Printer took 10.80 ms. Allocated memory is still 151.0 MB. Free memory was 79.6 MB in the beginning and 79.1 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:11:59,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 439.39 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 114.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 92.06 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 112.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.40 ms. Allocated memory is still 151.0 MB. Free memory was 112.1 MB in the beginning and 110.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 911.03 ms. Allocated memory is still 151.0 MB. Free memory was 110.2 MB in the beginning and 120.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1083.05 ms. Allocated memory is still 151.0 MB. Free memory was 120.0 MB in the beginning and 79.6 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * Witness Printer took 10.80 ms. Allocated memory is still 151.0 MB. Free memory was 79.6 MB in the beginning and 79.1 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 134]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of someBinaryArithmeticFLOAToperation at line 129. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L129] float x = 0.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND FALSE !(ix >= 0x50800000) VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L76] COND TRUE ix < 0x3ee00000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L77] COND TRUE ix < 0x31000000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L78] COND TRUE huge_atan + x > one_atan [L79] return x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L130] float res = atan_float(x); [L17] return x != x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L133] COND TRUE !isnan_float(res) [L134] reach_error() VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 16 SDslu, 27 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...