/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_0660a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:06:18,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:06:18,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:06:18,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:06:18,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:06:18,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:06:18,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:06:18,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:06:18,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:06:18,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:06:18,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:06:18,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:06:18,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:06:18,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:06:18,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:06:18,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:06:18,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:06:18,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:06:19,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:06:19,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:06:19,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:06:19,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:06:19,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:06:19,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:06:19,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 16:06:19,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 16:06:19,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 16:06:19,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 16:06:19,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 16:06:19,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 16:06:19,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:06:19,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:06:19,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:06:19,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:06:19,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:06:19,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:06:19,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:06:19,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:06:19,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:06:19,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:06:19,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:06:19,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:06:19,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:06:19,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:06:19,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:06:19,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:06:19,127 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:06:19,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:06:19,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:06:19,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:06:19,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:06:19,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:06:19,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:06:19,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:06:19,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:06:19,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:06:19,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:06:19,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:06:19,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:06:19,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:06:19,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:06:19,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:06:19,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:06:19,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:06:19,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:06:19,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:06:19,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:06:19,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:06:19,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:06:19,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:06:19,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:06:19,578 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:06:19,579 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:06:19,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2021-01-06 16:06:19,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/504627e7a/7af554a866294f6aa1a5a2fe24f411fd/FLAG72e61e18a [2021-01-06 16:06:20,296 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:06:20,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2021-01-06 16:06:20,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/504627e7a/7af554a866294f6aa1a5a2fe24f411fd/FLAG72e61e18a [2021-01-06 16:06:20,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/504627e7a/7af554a866294f6aa1a5a2fe24f411fd [2021-01-06 16:06:20,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:06:20,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:06:20,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:06:20,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:06:20,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:06:20,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:06:20" (1/1) ... [2021-01-06 16:06:20,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ab5274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:20, skipping insertion in model container [2021-01-06 16:06:20,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:06:20" (1/1) ... [2021-01-06 16:06:20,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:06:20,729 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,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~2,],value] left hand side expression in assignment: lhs: VariableLHS[~hx~1,] left hand side expression in assignment: lhs: VariableLHS[~ix~2,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~3,],value] left hand side expression in assignment: lhs: VariableLHS[~hy~0,] left hand side expression in assignment: lhs: VariableLHS[~iy~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~m~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~4,],value] left hand side expression in assignment: lhs: VariableLHS[~zh~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~sf_u~1,],word] left hand side expression in assignment: lhs: VariableLHS[~z~1,] [2021-01-06 16:06:20,996 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_0660a.c[5286,5299] [2021-01-06 16:06:21,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:06:21,013 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,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~2,],base],StructAccessExpression[IdentifierExpression[~#gf_u~2,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~hx~1,] left hand side expression in assignment: lhs: VariableLHS[~ix~2,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~3,],base],StructAccessExpression[IdentifierExpression[~#gf_u~3,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~hy~0,] left hand side expression in assignment: lhs: VariableLHS[~iy~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~m~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~4,],base],StructAccessExpression[IdentifierExpression[~#gf_u~4,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~zh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sf_u~1,],base],StructAccessExpression[IdentifierExpression[~#sf_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~z~1,] [2021-01-06 16:06:21,078 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_0660a.c[5286,5299] [2021-01-06 16:06:21,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:06:21,125 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:06:21,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21 WrapperNode [2021-01-06 16:06:21,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:06:21,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:06:21,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:06:21,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:06:21,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:06:21,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:06:21,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:06:21,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:06:21,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (1/1) ... [2021-01-06 16:06:21,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:06:21,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:06:21,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:06:21,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:06:21,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (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 [2021-01-06 16:06:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:06:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:06:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-01-06 16:06:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 16:06:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-01-06 16:06:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:06:21,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:06:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 16:06:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-01-06 16:06:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:06:22,484 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:06:22,485 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-01-06 16:06:22,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:22 BoogieIcfgContainer [2021-01-06 16:06:22,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:06:22,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:06:22,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:06:22,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:06:22,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:06:20" (1/3) ... [2021-01-06 16:06:22,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489a9912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:06:22, skipping insertion in model container [2021-01-06 16:06:22,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:21" (2/3) ... [2021-01-06 16:06:22,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489a9912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:06:22, skipping insertion in model container [2021-01-06 16:06:22,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:22" (3/3) ... [2021-01-06 16:06:22,497 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2021-01-06 16:06:22,504 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:06:22,510 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:06:22,532 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:06:22,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:06:22,564 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:06:22,565 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:06:22,565 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:06:22,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:06:22,565 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:06:22,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:06:22,566 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:06:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2021-01-06 16:06:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 16:06:22,592 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:22,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:22,594 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:22,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:22,601 INFO L82 PathProgramCache]: Analyzing trace with hash -895946911, now seen corresponding path program 1 times [2021-01-06 16:06:22,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:22,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060880310] [2021-01-06 16:06:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:06:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:06:22,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060880310] [2021-01-06 16:06:22,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:06:22,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 16:06:22,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880593702] [2021-01-06 16:06:22,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 16:06:22,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:06:22,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 16:06:22,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 16:06:22,858 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 2 states. [2021-01-06 16:06:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:06:22,927 INFO L93 Difference]: Finished difference Result 251 states and 438 transitions. [2021-01-06 16:06:22,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 16:06:22,932 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-01-06 16:06:22,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:06:22,963 INFO L225 Difference]: With dead ends: 251 [2021-01-06 16:06:22,964 INFO L226 Difference]: Without dead ends: 123 [2021-01-06 16:06:22,969 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 [2021-01-06 16:06:22,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-01-06 16:06:23,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-01-06 16:06:23,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-01-06 16:06:23,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 183 transitions. [2021-01-06 16:06:23,048 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 183 transitions. Word has length 11 [2021-01-06 16:06:23,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:06:23,050 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 183 transitions. [2021-01-06 16:06:23,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 16:06:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 183 transitions. [2021-01-06 16:06:23,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 16:06:23,054 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:23,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:23,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:06:23,055 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:23,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:23,059 INFO L82 PathProgramCache]: Analyzing trace with hash -569478663, now seen corresponding path program 1 times [2021-01-06 16:06:23,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:23,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458280113] [2021-01-06 16:06:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:06:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:06:23,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458280113] [2021-01-06 16:06:23,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:06:23,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:06:23,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592561412] [2021-01-06 16:06:23,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:06:23,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:06:23,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:06:23,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:06:23,275 INFO L87 Difference]: Start difference. First operand 123 states and 183 transitions. Second operand 4 states. [2021-01-06 16:06:23,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:06:23,371 INFO L93 Difference]: Finished difference Result 283 states and 422 transitions. [2021-01-06 16:06:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 16:06:23,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-06 16:06:23,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:06:23,375 INFO L225 Difference]: With dead ends: 283 [2021-01-06 16:06:23,375 INFO L226 Difference]: Without dead ends: 215 [2021-01-06 16:06:23,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:06:23,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-01-06 16:06:23,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 150. [2021-01-06 16:06:23,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2021-01-06 16:06:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 228 transitions. [2021-01-06 16:06:23,396 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 228 transitions. Word has length 13 [2021-01-06 16:06:23,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:06:23,397 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 228 transitions. [2021-01-06 16:06:23,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:06:23,441 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 228 transitions. [2021-01-06 16:06:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 16:06:23,442 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:23,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:23,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:06:23,443 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:23,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1851936143, now seen corresponding path program 1 times [2021-01-06 16:06:23,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:23,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988545075] [2021-01-06 16:06:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:06:23,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:06:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:06:23,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:06:23,591 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 16:06:23,591 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 16:06:23,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 16:06:23,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:06:23 BoogieIcfgContainer [2021-01-06 16:06:23,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:06:23,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:06:23,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:06:23,644 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:06:23,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:22" (3/4) ... [2021-01-06 16:06:23,648 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-06 16:06:23,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:06:23,651 INFO L168 Benchmark]: Toolchain (without parser) took 2994.40 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 115.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:23,651 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:06:23,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.72 ms. Allocated memory is still 152.0 MB. Free memory was 127.5 MB in the beginning and 112.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:23,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.78 ms. Allocated memory is still 152.0 MB. Free memory was 112.9 MB in the beginning and 109.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:23,654 INFO L168 Benchmark]: Boogie Preprocessor took 87.41 ms. Allocated memory is still 152.0 MB. Free memory was 109.1 MB in the beginning and 105.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:23,655 INFO L168 Benchmark]: RCFGBuilder took 1178.75 ms. Allocated memory is still 152.0 MB. Free memory was 105.6 MB in the beginning and 83.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:23,656 INFO L168 Benchmark]: TraceAbstraction took 1153.94 ms. Allocated memory is still 152.0 MB. Free memory was 83.2 MB in the beginning and 115.8 MB in the end (delta: -32.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:06:23,656 INFO L168 Benchmark]: Witness Printer took 4.95 ms. Allocated memory is still 152.0 MB. Free memory was 115.8 MB in the beginning and 115.3 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:06:23,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 466.72 ms. Allocated memory is still 152.0 MB. Free memory was 127.5 MB in the beginning and 112.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 91.78 ms. Allocated memory is still 152.0 MB. Free memory was 112.9 MB in the beginning and 109.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.41 ms. Allocated memory is still 152.0 MB. Free memory was 109.1 MB in the beginning and 105.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1178.75 ms. Allocated memory is still 152.0 MB. Free memory was 105.6 MB in the beginning and 83.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1153.94 ms. Allocated memory is still 152.0 MB. Free memory was 83.2 MB in the beginning and 115.8 MB in the end (delta: -32.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 4.95 ms. Allocated memory is still 152.0 MB. Free memory was 115.8 MB in the beginning and 115.3 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: 232]: 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 231, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someUnaryFLOAToperation at line 219, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] 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, }; [L49-L51] 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; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L218] float x = __VERIFIER_nondet_float(); [L219] float y = -0.0f; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L226] COND TRUE x < 0.0f && y == -0.0f [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L228] float res = __ieee754_atan2f(y, x); [L231] COND TRUE res != -pi VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L232] reach_error() VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 373 SDtfs, 198 SDslu, 230 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=2, 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, 65 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 388 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...