/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_0683a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:06:26,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:06:26,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:06:26,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:06:26,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:06:26,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:06:26,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:06:26,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:06:26,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:06:26,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:06:26,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:06:26,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:06:26,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:06:26,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:06:26,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:06:26,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:06:26,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:06:26,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:06:26,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:06:26,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:06:26,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:06:26,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:06:26,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:06:26,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:06:26,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 16:06:26,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 16:06:26,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 16:06:26,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 16:06:26,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 16:06:26,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 16:06:26,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:06:26,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:06:26,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:06:26,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:06:26,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:06:26,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:06:26,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:06:26,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:06:26,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:06:26,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:06:26,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:06:26,580 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 16:06:26,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:06:26,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:06:26,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:06:26,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:06:26,610 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:06:26,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:06:26,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:06:26,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:06:26,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:06:26,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:06:26,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:06:26,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:06:26,612 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:06:26,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:06:26,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:06:26,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:06:26,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:06:26,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:06:26,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:06:26,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:06:26,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:06:26,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:06:26,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:06:26,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:06:26,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:06:26,616 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:06:27,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:06:27,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:06:27,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:06:27,100 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:06:27,100 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:06:27,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0683a.c [2021-01-06 16:06:27,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3850334a9/3a30f3829005497ebc0e52c6e4dc6c73/FLAGa778b2190 [2021-01-06 16:06:27,795 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:06:27,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0683a.c [2021-01-06 16:06:27,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3850334a9/3a30f3829005497ebc0e52c6e4dc6c73/FLAGa778b2190 [2021-01-06 16:06:28,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3850334a9/3a30f3829005497ebc0e52c6e4dc6c73 [2021-01-06 16:06:28,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:06:28,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:06:28,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:06:28,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:06:28,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:06:28,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5870de56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28, skipping insertion in model container [2021-01-06 16:06:28,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:06:28,220 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~0,],value] left hand side expression in assignment: lhs: VariableLHS[~ix~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~sf_u~0,],word] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~1,],value] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: VariableLHS[~ix~1,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~w~0,] left hand side expression in assignment: lhs: VariableLHS[~s1~0,] left hand side expression in assignment: lhs: VariableLHS[~s2~0,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~2,],value] left hand side expression in assignment: lhs: VariableLHS[~hx~1,] left hand side expression in assignment: lhs: VariableLHS[~ix~2,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~3,],value] left hand side expression in assignment: lhs: VariableLHS[~hy~0,] left hand side expression in assignment: lhs: VariableLHS[~iy~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~m~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~4,],value] left hand side expression in assignment: lhs: VariableLHS[~zh~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~sf_u~1,],word] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~5,],value] left hand side expression in assignment: lhs: VariableLHS[~w~1,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gf_u~6,],value] left hand side expression in assignment: lhs: VariableLHS[~ix~3,] [2021-01-06 16:06:28,517 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_0683a.c[5826,5839] [2021-01-06 16:06:28,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:06:28,544 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~0,],base],StructAccessExpression[IdentifierExpression[~#gf_u~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~ix~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sf_u~0,],base],StructAccessExpression[IdentifierExpression[~#sf_u~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~1,],base],StructAccessExpression[IdentifierExpression[~#gf_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: VariableLHS[~ix~1,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~id~0,] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~w~0,] left hand side expression in assignment: lhs: VariableLHS[~s1~0,] left hand side expression in assignment: lhs: VariableLHS[~s2~0,] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~2,],base],StructAccessExpression[IdentifierExpression[~#gf_u~2,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~hx~1,] left hand side expression in assignment: lhs: VariableLHS[~ix~2,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~3,],base],StructAccessExpression[IdentifierExpression[~#gf_u~3,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~hy~0,] left hand side expression in assignment: lhs: VariableLHS[~iy~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~m~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~4,],base],StructAccessExpression[IdentifierExpression[~#gf_u~4,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~zh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sf_u~1,],base],StructAccessExpression[IdentifierExpression[~#sf_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~z~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~5,],base],StructAccessExpression[IdentifierExpression[~#gf_u~5,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~w~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gf_u~6,],base],StructAccessExpression[IdentifierExpression[~#gf_u~6,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~ix~3,] [2021-01-06 16:06:28,612 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_0683a.c[5826,5839] [2021-01-06 16:06:28,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:06:28,641 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:06:28,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28 WrapperNode [2021-01-06 16:06:28,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:06:28,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:06:28,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:06:28,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:06:28,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:06:28,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:06:28,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:06:28,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:06:28,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (1/1) ... [2021-01-06 16:06:28,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:06:28,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:06:28,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:06:28,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:06:28,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (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 16:06:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:06:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:06:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-01-06 16:06:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 16:06:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-01-06 16:06:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:06:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:06:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 16:06:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-01-06 16:06:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:06:29,916 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:06:29,916 INFO L299 CfgBuilder]: Removed 48 assume(true) statements. [2021-01-06 16:06:29,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:29 BoogieIcfgContainer [2021-01-06 16:06:29,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:06:29,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:06:29,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:06:29,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:06:29,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:06:28" (1/3) ... [2021-01-06 16:06:29,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e584ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:06:29, skipping insertion in model container [2021-01-06 16:06:29,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:06:28" (2/3) ... [2021-01-06 16:06:29,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e584ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:06:29, skipping insertion in model container [2021-01-06 16:06:29,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:29" (3/3) ... [2021-01-06 16:06:29,928 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0683a.c [2021-01-06 16:06:29,935 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:06:29,940 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:06:29,959 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:06:29,990 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:06:29,991 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:06:29,991 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:06:29,991 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:06:29,991 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:06:29,991 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:06:29,992 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:06:29,992 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:06:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2021-01-06 16:06:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 16:06:30,088 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:30,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:30,095 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:30,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:30,103 INFO L82 PathProgramCache]: Analyzing trace with hash -751271011, now seen corresponding path program 1 times [2021-01-06 16:06:30,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:30,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387401576] [2021-01-06 16:06:30,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:06:30,322 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 16:06:30,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387401576] [2021-01-06 16:06:30,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:06:30,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 16:06:30,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764403754] [2021-01-06 16:06:30,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 16:06:30,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:06:30,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 16:06:30,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 16:06:30,357 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 2 states. [2021-01-06 16:06:30,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:06:30,425 INFO L93 Difference]: Finished difference Result 270 states and 468 transitions. [2021-01-06 16:06:30,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 16:06:30,426 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2021-01-06 16:06:30,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:06:30,440 INFO L225 Difference]: With dead ends: 270 [2021-01-06 16:06:30,440 INFO L226 Difference]: Without dead ends: 132 [2021-01-06 16:06:30,444 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 16:06:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-01-06 16:06:30,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-01-06 16:06:30,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2021-01-06 16:06:30,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 193 transitions. [2021-01-06 16:06:30,503 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 193 transitions. Word has length 15 [2021-01-06 16:06:30,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:06:30,503 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 193 transitions. [2021-01-06 16:06:30,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 16:06:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 193 transitions. [2021-01-06 16:06:30,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 16:06:30,505 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:30,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:30,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:06:30,505 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:30,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:30,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1909314562, now seen corresponding path program 1 times [2021-01-06 16:06:30,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:30,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004520034] [2021-01-06 16:06:30,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:06:30,702 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 16:06:30,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004520034] [2021-01-06 16:06:30,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:06:30,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:06:30,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722389342] [2021-01-06 16:06:30,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:06:30,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:06:30,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:06:30,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:06:30,707 INFO L87 Difference]: Start difference. First operand 132 states and 193 transitions. Second operand 4 states. [2021-01-06 16:06:30,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:06:30,830 INFO L93 Difference]: Finished difference Result 307 states and 450 transitions. [2021-01-06 16:06:30,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 16:06:30,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-01-06 16:06:30,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:06:30,840 INFO L225 Difference]: With dead ends: 307 [2021-01-06 16:06:30,840 INFO L226 Difference]: Without dead ends: 234 [2021-01-06 16:06:30,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:06:30,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-01-06 16:06:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 159. [2021-01-06 16:06:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2021-01-06 16:06:30,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 238 transitions. [2021-01-06 16:06:30,863 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 238 transitions. Word has length 18 [2021-01-06 16:06:30,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:06:30,864 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 238 transitions. [2021-01-06 16:06:30,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:06:30,864 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 238 transitions. [2021-01-06 16:06:30,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 16:06:30,865 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:30,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:06:30,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:06:30,866 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:30,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:30,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1790282195, now seen corresponding path program 1 times [2021-01-06 16:06:30,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:30,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978855407] [2021-01-06 16:06:30,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:06:30,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:06:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:06:31,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:06:31,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 16:06:31,134 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 16:06:31,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 16:06:31,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:06:31 BoogieIcfgContainer [2021-01-06 16:06:31,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:06:31,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:06:31,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:06:31,191 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:06:31,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:06:29" (3/4) ... [2021-01-06 16:06:31,199 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-06 16:06:31,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:06:31,202 INFO L168 Benchmark]: Toolchain (without parser) took 3061.01 ms. Allocated memory is still 166.7 MB. Free memory was 142.1 MB in the beginning and 92.5 MB in the end (delta: 49.7 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:31,204 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 166.7 MB. Free memory was 145.9 MB in the beginning and 145.8 MB in the end (delta: 86.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:06:31,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.39 ms. Allocated memory is still 166.7 MB. Free memory was 142.1 MB in the beginning and 127.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:31,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.35 ms. Allocated memory is still 166.7 MB. Free memory was 127.0 MB in the beginning and 123.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:31,209 INFO L168 Benchmark]: Boogie Preprocessor took 90.22 ms. Allocated memory is still 166.7 MB. Free memory was 123.3 MB in the beginning and 119.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:31,209 INFO L168 Benchmark]: RCFGBuilder took 1092.23 ms. Allocated memory is still 166.7 MB. Free memory was 119.6 MB in the beginning and 63.0 MB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:31,210 INFO L168 Benchmark]: TraceAbstraction took 1269.25 ms. Allocated memory is still 166.7 MB. Free memory was 62.4 MB in the beginning and 93.0 MB in the end (delta: -30.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:06:31,212 INFO L168 Benchmark]: Witness Printer took 9.08 ms. Allocated memory is still 166.7 MB. Free memory was 93.0 MB in the beginning and 92.5 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:31,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 166.7 MB. Free memory was 145.9 MB in the beginning and 145.8 MB in the end (delta: 86.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 497.39 ms. Allocated memory is still 166.7 MB. Free memory was 142.1 MB in the beginning and 127.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 88.35 ms. Allocated memory is still 166.7 MB. Free memory was 127.0 MB in the beginning and 123.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 90.22 ms. Allocated memory is still 166.7 MB. Free memory was 123.3 MB in the beginning and 119.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1092.23 ms. Allocated memory is still 166.7 MB. Free memory was 119.6 MB in the beginning and 63.0 MB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1269.25 ms. Allocated memory is still 166.7 MB. Free memory was 62.4 MB in the beginning and 93.0 MB in the end (delta: -30.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 9.08 ms. Allocated memory is still 166.7 MB. Free memory was 93.0 MB in the beginning and 92.5 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 257]: 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 256, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 237, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L249] float x = 1.0f / 0.0f; [L250] float y = __VERIFIER_nondet_float(); [L231] __int32_t ix; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L233] ieee_float_shape_type gf_u; [L234] gf_u.value = (x) [L235] EXPR gf_u.word [L235] (ix) = gf_u.word [L237] ix &= 0x7fffffff [L238] return (((ix) < 0x7f800000L)); VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L252] COND TRUE isfinite_float(y) && y < 0.0f [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L253] float res = __ieee754_atan2f(y, x); [L256] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L256] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L257] reach_error() VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 399 SDtfs, 210 SDslu, 246 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred 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, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 689 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...