/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_0270a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:06:06,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:06:06,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:06:06,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:06:06,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:06:06,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:06:06,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:06:06,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:06:06,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:06:06,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:06:06,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:06:06,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:06:06,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:06:06,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:06:06,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:06:06,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:06:06,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:06:06,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:06:06,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:06:06,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:06:06,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:06:06,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:06:06,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:06:06,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:06:06,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 16:06:06,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:06:06,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:06:06,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:06:06,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:06:06,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:06:06,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:06:06,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:06:06,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:06:06,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:06:06,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:06:06,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:06:06,411 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 16:06:06,467 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:06:06,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:06:06,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:06:06,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:06:06,469 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:06:06,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:06:06,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:06:06,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:06:06,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:06:06,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:06:06,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:06:06,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:06:06,474 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:06:06,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:06:06,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:06:06,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:06:06,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:06:06,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:06:06,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:06:06,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:06:06,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:06:06,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:06:06,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:06:06,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:06:06,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:06:06,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:06:06,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:06:06,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:06:06,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:06:06,911 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:06:06,913 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:06:06,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-01-06 16:06:07,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8912fe83a/5d93042b7fe142479ff9b68ff79e5758/FLAGfc571e7cd [2021-01-06 16:06:07,715 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:06:07,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-01-06 16:06:07,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8912fe83a/5d93042b7fe142479ff9b68ff79e5758/FLAGfc571e7cd [2021-01-06 16:06:08,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8912fe83a/5d93042b7fe142479ff9b68ff79e5758 [2021-01-06 16:06:08,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:06:08,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:06:08,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:06:08,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:06:08,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:06:08,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b63bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08, skipping insertion in model container [2021-01-06 16:06:08,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:06:08,128 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[~w~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~1,],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~2,],value] left hand side expression in assignment: lhs: VariableLHS[~ix~1,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~sf_u~1,],word] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~3,],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: VariableLHS[~t~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[~w~1,] left hand side expression in assignment: lhs: VariableLHS[~w~1,] left hand side expression in assignment: lhs: VariableLHS[~t~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[~w~1,] left hand side expression in assignment: lhs: VariableLHS[~t~1,] left hand side expression in assignment: lhs: VariableLHS[~w~1,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~4,],value] left hand side expression in assignment: lhs: VariableLHS[~iw~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~sf_u~2,],word] left hand side expression in assignment: lhs: VariableLHS[~w~1,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~r~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[~t~1,] [2021-01-06 16:06:08,498 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_0270a.c[4702,4715] [2021-01-06 16:06:08,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:06:08,512 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[~w~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[~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~2,],base],StructAccessExpression[IdentifierExpression[~#gf_u~2,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~ix~1,] 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[~x,] 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[~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: VariableLHS[~t~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[~w~1,] left hand side expression in assignment: lhs: VariableLHS[~w~1,] left hand side expression in assignment: lhs: VariableLHS[~t~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[~w~1,] left hand side expression in assignment: lhs: VariableLHS[~t~1,] left hand side expression in assignment: lhs: VariableLHS[~w~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[~iw~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sf_u~2,],base],StructAccessExpression[IdentifierExpression[~#sf_u~2,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~w~1,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~r~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[~t~1,] [2021-01-06 16:06:08,567 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_0270a.c[4702,4715] [2021-01-06 16:06:08,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:06:08,600 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:06:08,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08 WrapperNode [2021-01-06 16:06:08,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:06:08,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:06:08,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:06:08,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:06:08,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:06:08,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:06:08,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:06:08,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:06:08,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (1/1) ... [2021-01-06 16:06:08,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:06:08,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:06:08,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:06:08,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:06:08,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (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 16:06:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:06:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:06:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-01-06 16:06:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 16:06:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-01-06 16:06:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:06:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:06:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 16:06:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:06:09,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:06:09,730 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-01-06 16:06:09,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:09 BoogieIcfgContainer [2021-01-06 16:06:09,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:06:09,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:06:09,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:06:09,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:06:09,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:06:08" (1/3) ... [2021-01-06 16:06:09,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508b3e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:06:09, skipping insertion in model container [2021-01-06 16:06:09,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:08" (2/3) ... [2021-01-06 16:06:09,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508b3e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:06:09, skipping insertion in model container [2021-01-06 16:06:09,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:09" (3/3) ... [2021-01-06 16:06:09,741 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-01-06 16:06:09,748 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:06:09,753 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:06:09,774 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:06:09,802 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:06:09,803 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:06:09,803 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:06:09,803 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:06:09,803 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:06:09,803 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:06:09,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:06:09,804 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:06:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2021-01-06 16:06:09,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 16:06:09,827 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:09,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:09,828 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:09,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:09,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1822908428, now seen corresponding path program 1 times [2021-01-06 16:06:09,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:09,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032300986] [2021-01-06 16:06:09,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:06:09,995 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 16:06:09,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032300986] [2021-01-06 16:06:09,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:06:09,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 16:06:09,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755190643] [2021-01-06 16:06:10,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 16:06:10,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:06:10,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 16:06:10,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 16:06:10,021 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 2 states. [2021-01-06 16:06:10,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:06:10,051 INFO L93 Difference]: Finished difference Result 138 states and 236 transitions. [2021-01-06 16:06:10,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 16:06:10,052 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-01-06 16:06:10,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:06:10,064 INFO L225 Difference]: With dead ends: 138 [2021-01-06 16:06:10,064 INFO L226 Difference]: Without dead ends: 67 [2021-01-06 16:06:10,068 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 16:06:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-01-06 16:06:10,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-01-06 16:06:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2021-01-06 16:06:10,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 90 transitions. [2021-01-06 16:06:10,112 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 90 transitions. Word has length 9 [2021-01-06 16:06:10,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:06:10,113 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 90 transitions. [2021-01-06 16:06:10,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 16:06:10,113 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 90 transitions. [2021-01-06 16:06:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 16:06:10,114 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:10,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:10,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:06:10,115 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:10,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:10,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1565442385, now seen corresponding path program 1 times [2021-01-06 16:06:10,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:10,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716406844] [2021-01-06 16:06:10,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:06:10,243 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 16:06:10,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716406844] [2021-01-06 16:06:10,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:06:10,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 16:06:10,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017077550] [2021-01-06 16:06:10,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 16:06:10,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:06:10,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 16:06:10,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:06:10,250 INFO L87 Difference]: Start difference. First operand 67 states and 90 transitions. Second operand 3 states. [2021-01-06 16:06:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:06:10,309 INFO L93 Difference]: Finished difference Result 180 states and 240 transitions. [2021-01-06 16:06:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 16:06:10,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-01-06 16:06:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:06:10,312 INFO L225 Difference]: With dead ends: 180 [2021-01-06 16:06:10,313 INFO L226 Difference]: Without dead ends: 126 [2021-01-06 16:06:10,316 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 [2021-01-06 16:06:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-01-06 16:06:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 111. [2021-01-06 16:06:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-01-06 16:06:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 149 transitions. [2021-01-06 16:06:10,347 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 149 transitions. Word has length 10 [2021-01-06 16:06:10,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:06:10,349 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 149 transitions. [2021-01-06 16:06:10,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 16:06:10,350 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 149 transitions. [2021-01-06 16:06:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 16:06:10,350 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:10,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:10,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:06:10,351 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:10,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:10,353 INFO L82 PathProgramCache]: Analyzing trace with hash -285909876, now seen corresponding path program 1 times [2021-01-06 16:06:10,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:10,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246072099] [2021-01-06 16:06:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:06:10,421 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:06:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:06:10,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:06:10,489 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 16:06:10,489 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 16:06:10,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 16:06:10,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:06:10 BoogieIcfgContainer [2021-01-06 16:06:10,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:06:10,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:06:10,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:06:10,552 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:06:10,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:09" (3/4) ... [2021-01-06 16:06:10,556 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-06 16:06:10,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:06:10,560 INFO L168 Benchmark]: Toolchain (without parser) took 2503.05 ms. Allocated memory is still 161.5 MB. Free memory was 136.9 MB in the beginning and 79.5 MB in the end (delta: 57.4 MB). Peak memory consumption was 57.3 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:10,565 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 161.5 MB. Free memory was 133.7 MB in the beginning and 133.6 MB in the end (delta: 94.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:06:10,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.63 ms. Allocated memory is still 161.5 MB. Free memory was 136.7 MB in the beginning and 122.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:10,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.53 ms. Allocated memory is still 161.5 MB. Free memory was 122.7 MB in the beginning and 120.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:10,570 INFO L168 Benchmark]: Boogie Preprocessor took 44.14 ms. Allocated memory is still 161.5 MB. Free memory was 120.2 MB in the beginning and 118.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:10,576 INFO L168 Benchmark]: RCFGBuilder took 981.76 ms. Allocated memory is still 161.5 MB. Free memory was 117.9 MB in the beginning and 116.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:10,577 INFO L168 Benchmark]: TraceAbstraction took 816.29 ms. Allocated memory is still 161.5 MB. Free memory was 116.2 MB in the beginning and 80.0 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.7 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:10,578 INFO L168 Benchmark]: Witness Printer took 5.49 ms. Allocated memory is still 161.5 MB. Free memory was 80.0 MB in the beginning and 79.5 MB in the end (delta: 512.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:06:10,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 161.5 MB. Free memory was 133.7 MB in the beginning and 133.6 MB in the end (delta: 94.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 542.63 ms. Allocated memory is still 161.5 MB. Free memory was 136.7 MB in the beginning and 122.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 101.53 ms. Allocated memory is still 161.5 MB. Free memory was 122.7 MB in the beginning and 120.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.14 ms. Allocated memory is still 161.5 MB. Free memory was 120.2 MB in the beginning and 118.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 981.76 ms. Allocated memory is still 161.5 MB. Free memory was 117.9 MB in the beginning and 116.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 816.29 ms. Allocated memory is still 161.5 MB. Free memory was 116.2 MB in the beginning and 80.0 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.7 MB. Max. memory is 8.0 GB. * Witness Printer took 5.49 ms. Allocated memory is still 161.5 MB. Free memory was 80.0 MB in the beginning and 79.5 MB in the end (delta: 512.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 200]: 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of someUnaryFLOAToperation at line 195, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L195] float x = -0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, ix = hx & 0x7fffffff=2147483647, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, ix = hx & 0x7fffffff=2147483647, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, ix = hx & 0x7fffffff=2147483647, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, ix = hx & 0x7fffffff=2147483647, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 189 SDtfs, 75 SDslu, 76 SDs, 0 SdLazy, 18 SolverSat, 4 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=111occurred 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, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 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...