/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_0490a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:11:52,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:11:52,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:11:52,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:11:52,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:11:52,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:11:52,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:11:52,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:11:52,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:11:52,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:11:52,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:11:52,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:11:52,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:11:52,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:11:52,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:11:52,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:11:52,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:11:52,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:11:52,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:11:52,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:11:52,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:11:52,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:11:52,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:11:52,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:11:52,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:11:52,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:11:52,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:11:52,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:11:52,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:11:52,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:11:52,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:11:52,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:11:52,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:11:52,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:11:52,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:11:52,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:11:52,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:11:52,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:11:52,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:11:52,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:11:52,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:11:52,252 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 06:11:52,306 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:11:52,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:11:52,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:11:52,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:11:52,313 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:11:52,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:11:52,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:11:52,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:11:52,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:11:52,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:11:52,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:11:52,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:11:52,316 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:11:52,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:11:52,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:11:52,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:11:52,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:11:52,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:11:52,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:11:52,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:11:52,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:11:52,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:11:52,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:11:52,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:11:52,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:11:52,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:11:52,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:11:52,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:11:52,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:11:52,753 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:11:52,754 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:11:52,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0490a.c [2020-12-23 06:11:52,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/197ec5e22/498c6a59d81543b1b574f0aa8529a6eb/FLAGbac9f8d99 [2020-12-23 06:11:53,472 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:11:53,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0490a.c [2020-12-23 06:11:53,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/197ec5e22/498c6a59d81543b1b574f0aa8529a6eb/FLAGbac9f8d99 [2020-12-23 06:11:53,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/197ec5e22/498c6a59d81543b1b574f0aa8529a6eb [2020-12-23 06:11:53,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:11:53,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:11:53,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:11:53,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:11:53,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:11:53,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:11:53" (1/1) ... [2020-12-23 06:11:53,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402d29fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:53, skipping insertion in model container [2020-12-23 06:11:53,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:11:53" (1/1) ... [2020-12-23 06:11:53,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:11:53,925 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: VariableLHS[~hx~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~ix~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] 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[~z~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~1,],value] left hand side expression in assignment: lhs: VariableLHS[~hx~1,] 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[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~1,] left hand side expression in assignment: lhs: VariableLHS[~r~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~1,] left hand side expression in assignment: lhs: VariableLHS[~s~1,] left hand side expression in assignment: lhs: VariableLHS[~r~1,] left hand side expression in assignment: lhs: VariableLHS[~w~0,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~s~1,] left hand side expression in assignment: lhs: VariableLHS[~df~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~2,],value] left hand side expression in assignment: lhs: VariableLHS[~idf~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~sf_u~1,],word] left hand side expression in assignment: lhs: VariableLHS[~df~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~1,] left hand side expression in assignment: lhs: VariableLHS[~r~1,] left hand side expression in assignment: lhs: VariableLHS[~w~0,] [2020-12-23 06:11:54,248 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_0490a.c[4369,4382] [2020-12-23 06:11:54,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:11:54,261 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: lhs: VariableLHS[~hx~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~ix~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] 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[~z~0,] 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~1,] 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[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~1,] left hand side expression in assignment: lhs: VariableLHS[~r~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~1,] left hand side expression in assignment: lhs: VariableLHS[~s~1,] left hand side expression in assignment: lhs: VariableLHS[~r~1,] left hand side expression in assignment: lhs: VariableLHS[~w~0,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~s~1,] left hand side expression in assignment: lhs: VariableLHS[~df~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[~idf~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[~df~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~1,] left hand side expression in assignment: lhs: VariableLHS[~r~1,] left hand side expression in assignment: lhs: VariableLHS[~w~0,] [2020-12-23 06:11:54,334 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_0490a.c[4369,4382] [2020-12-23 06:11:54,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:11:54,359 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:11:54,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54 WrapperNode [2020-12-23 06:11:54,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:11:54,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:11:54,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:11:54,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:11:54,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:11:54,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:11:54,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:11:54,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:11:54,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (1/1) ... [2020-12-23 06:11:54,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:11:54,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:11:54,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:11:54,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:11:54,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (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 06:11:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:11:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:11:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-23 06:11:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:11:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-23 06:11:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:11:54,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:11:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:11:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:11:55,345 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:11:55,345 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-23 06:11:55,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:55 BoogieIcfgContainer [2020-12-23 06:11:55,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:11:55,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:11:55,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:11:55,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:11:55,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:11:53" (1/3) ... [2020-12-23 06:11:55,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cca948e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:11:55, skipping insertion in model container [2020-12-23 06:11:55,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:54" (2/3) ... [2020-12-23 06:11:55,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cca948e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:11:55, skipping insertion in model container [2020-12-23 06:11:55,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:55" (3/3) ... [2020-12-23 06:11:55,357 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490a.c [2020-12-23 06:11:55,365 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:11:55,372 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:11:55,396 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:11:55,429 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:11:55,430 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:11:55,430 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:11:55,430 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:11:55,430 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:11:55,430 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:11:55,431 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:11:55,431 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:11:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-12-23 06:11:55,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 06:11:55,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:55,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:55,458 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:55,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:55,466 INFO L82 PathProgramCache]: Analyzing trace with hash -889690995, now seen corresponding path program 1 times [2020-12-23 06:11:55,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:55,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457496169] [2020-12-23 06:11:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:11:55,662 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 06:11:55,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457496169] [2020-12-23 06:11:55,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:11:55,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 06:11:55,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235552560] [2020-12-23 06:11:55,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 06:11:55,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:11:55,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 06:11:55,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:11:55,690 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2020-12-23 06:11:55,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:11:55,721 INFO L93 Difference]: Finished difference Result 176 states and 308 transitions. [2020-12-23 06:11:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 06:11:55,723 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-23 06:11:55,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:11:55,736 INFO L225 Difference]: With dead ends: 176 [2020-12-23 06:11:55,736 INFO L226 Difference]: Without dead ends: 86 [2020-12-23 06:11:55,740 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 06:11:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-12-23 06:11:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-12-23 06:11:55,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-23 06:11:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2020-12-23 06:11:55,791 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 10 [2020-12-23 06:11:55,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:11:55,792 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2020-12-23 06:11:55,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 06:11:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2020-12-23 06:11:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 06:11:55,793 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:55,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:55,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:11:55,794 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:55,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:55,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1069969104, now seen corresponding path program 1 times [2020-12-23 06:11:55,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:55,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390407422] [2020-12-23 06:11:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:11:55,878 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 06:11:55,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390407422] [2020-12-23 06:11:55,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:11:55,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:11:55,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502728671] [2020-12-23 06:11:55,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 06:11:55,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:11:55,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 06:11:55,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:11:55,883 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand 3 states. [2020-12-23 06:11:55,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:11:55,983 INFO L93 Difference]: Finished difference Result 169 states and 236 transitions. [2020-12-23 06:11:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 06:11:55,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-23 06:11:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:11:55,989 INFO L225 Difference]: With dead ends: 169 [2020-12-23 06:11:55,992 INFO L226 Difference]: Without dead ends: 95 [2020-12-23 06:11:55,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 06:11:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-12-23 06:11:56,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2020-12-23 06:11:56,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-23 06:11:56,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 125 transitions. [2020-12-23 06:11:56,021 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 125 transitions. Word has length 11 [2020-12-23 06:11:56,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:11:56,022 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 125 transitions. [2020-12-23 06:11:56,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 06:11:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 125 transitions. [2020-12-23 06:11:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 06:11:56,023 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:56,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:56,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:11:56,027 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:56,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:56,028 INFO L82 PathProgramCache]: Analyzing trace with hash -942590955, now seen corresponding path program 1 times [2020-12-23 06:11:56,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:56,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771496886] [2020-12-23 06:11:56,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:11:56,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:11:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:11:56,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:11:56,173 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:11:56,173 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:11:56,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:11:56,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:11:56 BoogieIcfgContainer [2020-12-23 06:11:56,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:11:56,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:11:56,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:11:56,220 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:11:56,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:55" (3/4) ... [2020-12-23 06:11:56,225 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 06:11:56,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:11:56,232 INFO L168 Benchmark]: Toolchain (without parser) took 2382.03 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 124.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:56,236 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 123.0 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:11:56,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.79 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 111.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:56,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.71 ms. Allocated memory is still 151.0 MB. Free memory was 111.9 MB in the beginning and 109.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:56,240 INFO L168 Benchmark]: Boogie Preprocessor took 70.39 ms. Allocated memory is still 151.0 MB. Free memory was 109.0 MB in the beginning and 106.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:56,245 INFO L168 Benchmark]: RCFGBuilder took 846.32 ms. Allocated memory is still 151.0 MB. Free memory was 106.7 MB in the beginning and 101.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:56,246 INFO L168 Benchmark]: TraceAbstraction took 869.89 ms. Allocated memory is still 151.0 MB. Free memory was 101.4 MB in the beginning and 124.7 MB in the end (delta: -23.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:11:56,247 INFO L168 Benchmark]: Witness Printer took 6.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 124.2 MB in the end (delta: 517.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:11:56,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 123.0 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 508.79 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 111.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 67.71 ms. Allocated memory is still 151.0 MB. Free memory was 111.9 MB in the beginning and 109.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.39 ms. Allocated memory is still 151.0 MB. Free memory was 109.0 MB in the beginning and 106.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 846.32 ms. Allocated memory is still 151.0 MB. Free memory was 106.7 MB in the beginning and 101.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 869.89 ms. Allocated memory is still 151.0 MB. Free memory was 101.4 MB in the beginning and 124.7 MB in the end (delta: -23.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 6.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 124.2 MB in the end (delta: 517.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 175]: 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 15, overapproximation of someUnaryDOUBLEoperation at line 89, overapproximation of someBinaryArithmeticFLOAToperation at line 114. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L86-L93] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L170] float x = 1.0f / 0.0f; [L96] float z, p, q, r, w, s, c, df; [L97] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L99] ieee_float_shape_type gf_u; [L100] gf_u.value = (x) [L101] EXPR gf_u.word [L101] (hx) = gf_u.word [L103] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L104] COND FALSE !(ix == 0x3f800000) VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L109] COND FALSE !(ix > 0x3f800000) VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L112] COND TRUE ix < 0x3f000000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L113] COND TRUE ix <= 0x23000000 [L114] return pio2_hi_acos + pio2_lo_acos; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L171] float res = __ieee754_acosf(x); [L15] return x != x; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L174] COND TRUE !isnan_float(res) [L175] reach_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 241 SDtfs, 8 SDslu, 109 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s 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...