/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/double_req_bl_1211b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:11:36,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:11:36,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:11:36,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:11:36,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:11:36,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:11:36,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:11:36,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:11:36,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:11:36,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:11:36,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:11:36,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:11:36,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:11:36,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:11:36,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:11:36,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:11:36,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:11:36,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:11:36,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:11:36,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:11:36,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:11:36,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:11:36,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:11:36,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:11:36,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:11:36,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:11:36,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:11:36,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:11:36,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:11:36,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:11:36,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:11:36,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:11:36,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:11:36,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:11:36,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:11:36,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:11:36,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:11:36,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:11:36,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:11:36,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:11:36,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:11:36,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:11:36,713 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:11:36,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:11:36,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:11:36,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:11:36,719 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:11:36,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:11:36,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:11:36,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:11:36,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:11:36,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:11:36,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:11:36,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:11:36,722 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:11:36,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:11:36,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:11:36,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:11:36,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:11:36,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:11:36,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:11:36,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:11:36,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:11:36,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:11:36,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:11:36,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:11:36,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:11:36,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:11:37,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:11:37,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:11:37,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:11:37,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:11:37,180 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:11:37,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2020-12-23 06:11:37,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd7a65c3a/ec98028a7071492fba0753bda420a998/FLAGf0584a3dd [2020-12-23 06:11:37,973 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:11:37,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2020-12-23 06:11:37,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd7a65c3a/ec98028a7071492fba0753bda420a998/FLAGf0584a3dd [2020-12-23 06:11:38,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd7a65c3a/ec98028a7071492fba0753bda420a998 [2020-12-23 06:11:38,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:11:38,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:11:38,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:11:38,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:11:38,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:11:38,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cf6982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38, skipping insertion in model container [2020-12-23 06:11:38,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:11:38,366 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: StructLHS[VariableLHS[~ew_u~0,],value] left hand side expression in assignment: lhs: VariableLHS[~i0~0,] left hand side expression in assignment: lhs: VariableLHS[~i1~0,] left hand side expression in assignment: lhs: VariableLHS[~j0~0,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~0,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~0,],parts],lsw] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gh_u~0,],value] left hand side expression in assignment: lhs: VariableLHS[~high~0,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~1,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~1,],parts],lsw] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~2,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~2,],parts],lsw] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gh_u~1,],value] left hand side expression in assignment: lhs: VariableLHS[~high~1,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~3,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~3,],parts],lsw] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gh_u~2,],value] left hand side expression in assignment: lhs: VariableLHS[~high~2,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~4,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~4,],parts],lsw] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~5,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~5,],parts],lsw] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~ew_u~1,],value] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: VariableLHS[~lx~0,] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~gh_u~3,],value] left hand side expression in assignment: lhs: VariableLHS[~msw~0,] [2020-12-23 06:11:38,586 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/double_req_bl_1211b.c[3718,3731] [2020-12-23 06:11:38,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:11:38,600 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#ew_u~0,],base],StructAccessExpression[IdentifierExpression[~#ew_u~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i0~0,] left hand side expression in assignment: lhs: VariableLHS[~i1~0,] left hand side expression in assignment: lhs: VariableLHS[~j0~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~0,],base],StructAccessExpression[IdentifierExpression[~#iw_u~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gh_u~0,],base],StructAccessExpression[IdentifierExpression[~#gh_u~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~high~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~1,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~1,],base],StructAccessExpression[IdentifierExpression[~#iw_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~2,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~2,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~2,],base],StructAccessExpression[IdentifierExpression[~#iw_u~2,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gh_u~1,],base],StructAccessExpression[IdentifierExpression[~#gh_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~high~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~3,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~3,],base],StructAccessExpression[IdentifierExpression[~#iw_u~3,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gh_u~2,],base],StructAccessExpression[IdentifierExpression[~#gh_u~2,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~high~2,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~4,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~4,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~4,],base],StructAccessExpression[IdentifierExpression[~#iw_u~4,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~5,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~5,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~5,],base],StructAccessExpression[IdentifierExpression[~#iw_u~5,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~iptr,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#ew_u~1,],base],StructAccessExpression[IdentifierExpression[~#ew_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: VariableLHS[~lx~0,] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#gh_u~3,],base],StructAccessExpression[IdentifierExpression[~#gh_u~3,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~msw~0,] [2020-12-23 06:11:38,677 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/double_req_bl_1211b.c[3718,3731] [2020-12-23 06:11:38,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:11:38,707 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:11:38,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38 WrapperNode [2020-12-23 06:11:38,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:11:38,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:11:38,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:11:38,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:11:38,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:11:38,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:11:38,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:11:38,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:11:38,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... [2020-12-23 06:11:38,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:11:38,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:11:38,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:11:38,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:11:38,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:11:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:11:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:11:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-23 06:11:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:11:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-23 06:11:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:11:39,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:11:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-23 06:11:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:11:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:11:40,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:11:40,093 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2020-12-23 06:11:40,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:40 BoogieIcfgContainer [2020-12-23 06:11:40,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:11:40,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:11:40,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:11:40,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:11:40,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:11:38" (1/3) ... [2020-12-23 06:11:40,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384e9d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:11:40, skipping insertion in model container [2020-12-23 06:11:40,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:38" (2/3) ... [2020-12-23 06:11:40,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384e9d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:11:40, skipping insertion in model container [2020-12-23 06:11:40,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:40" (3/3) ... [2020-12-23 06:11:40,108 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211b.c [2020-12-23 06:11:40,116 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:11:40,124 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:11:40,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:11:40,178 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:11:40,178 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:11:40,178 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:11:40,178 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:11:40,178 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:11:40,179 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:11:40,179 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:11:40,179 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:11:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-12-23 06:11:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 06:11:40,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:40,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:40,202 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:40,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:40,209 INFO L82 PathProgramCache]: Analyzing trace with hash -892017235, now seen corresponding path program 1 times [2020-12-23 06:11:40,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:40,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233249347] [2020-12-23 06:11:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:11:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:11:40,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233249347] [2020-12-23 06:11:40,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:11:40,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 06:11:40,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786067751] [2020-12-23 06:11:40,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 06:11:40,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:11:40,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 06:11:40,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:11:40,435 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-12-23 06:11:40,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:11:40,466 INFO L93 Difference]: Finished difference Result 102 states and 164 transitions. [2020-12-23 06:11:40,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 06:11:40,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-12-23 06:11:40,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:11:40,480 INFO L225 Difference]: With dead ends: 102 [2020-12-23 06:11:40,481 INFO L226 Difference]: Without dead ends: 49 [2020-12-23 06:11:40,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:11:40,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-12-23 06:11:40,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-12-23 06:11:40,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-23 06:11:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2020-12-23 06:11:40,533 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 15 [2020-12-23 06:11:40,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:11:40,534 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2020-12-23 06:11:40,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 06:11:40,534 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2020-12-23 06:11:40,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 06:11:40,535 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:40,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:40,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:11:40,536 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:40,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1752581688, now seen corresponding path program 1 times [2020-12-23 06:11:40,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:40,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299113071] [2020-12-23 06:11:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:11:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:11:40,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299113071] [2020-12-23 06:11:40,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:11:40,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:11:40,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075831854] [2020-12-23 06:11:40,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 06:11:40,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:11:40,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 06:11:40,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:11:40,915 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 3 states. [2020-12-23 06:11:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:11:40,940 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2020-12-23 06:11:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 06:11:40,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-23 06:11:40,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:11:40,943 INFO L225 Difference]: With dead ends: 52 [2020-12-23 06:11:40,943 INFO L226 Difference]: Without dead ends: 49 [2020-12-23 06:11:40,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:11:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-12-23 06:11:40,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-12-23 06:11:40,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-23 06:11:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2020-12-23 06:11:40,953 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 18 [2020-12-23 06:11:40,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:11:40,954 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2020-12-23 06:11:40,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 06:11:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-12-23 06:11:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 06:11:40,955 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:40,956 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] [2020-12-23 06:11:40,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:11:40,956 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:40,957 INFO L82 PathProgramCache]: Analyzing trace with hash 581418946, now seen corresponding path program 1 times [2020-12-23 06:11:40,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:40,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717093714] [2020-12-23 06:11:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:11:41,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:11:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:11:42,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:11:42,283 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:11:42,283 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:11:42,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:11:42,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:11:42 BoogieIcfgContainer [2020-12-23 06:11:42,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:11:42,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:11:42,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:11:42,347 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:11:42,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:40" (3/4) ... [2020-12-23 06:11:42,352 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 06:11:42,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:11:42,361 INFO L168 Benchmark]: Toolchain (without parser) took 4036.69 ms. Allocated memory was 158.3 MB in the beginning and 197.1 MB in the end (delta: 38.8 MB). Free memory was 133.4 MB in the beginning and 96.2 MB in the end (delta: 37.2 MB). Peak memory consumption was 76.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:42,363 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 158.3 MB. Free memory is still 129.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:11:42,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.34 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 120.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:42,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.20 ms. Allocated memory is still 158.3 MB. Free memory was 120.6 MB in the beginning and 113.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:42,376 INFO L168 Benchmark]: Boogie Preprocessor took 141.90 ms. Allocated memory is still 158.3 MB. Free memory was 113.4 MB in the beginning and 107.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:42,380 INFO L168 Benchmark]: RCFGBuilder took 1150.40 ms. Allocated memory is still 158.3 MB. Free memory was 107.8 MB in the beginning and 73.8 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:42,383 INFO L168 Benchmark]: TraceAbstraction took 2246.16 ms. Allocated memory was 158.3 MB in the beginning and 197.1 MB in the end (delta: 38.8 MB). Free memory was 73.3 MB in the beginning and 96.7 MB in the end (delta: -23.4 MB). Peak memory consumption was 46.8 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:42,384 INFO L168 Benchmark]: Witness Printer took 10.01 ms. Allocated memory is still 197.1 MB. Free memory was 96.7 MB in the beginning and 96.2 MB in the end (delta: 521.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:11:42,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 158.3 MB. Free memory is still 129.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 384.34 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 120.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.20 ms. Allocated memory is still 158.3 MB. Free memory was 120.6 MB in the beginning and 113.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 141.90 ms. Allocated memory is still 158.3 MB. Free memory was 113.4 MB in the beginning and 107.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1150.40 ms. Allocated memory is still 158.3 MB. Free memory was 107.8 MB in the beginning and 73.8 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2246.16 ms. Allocated memory was 158.3 MB in the beginning and 197.1 MB in the end (delta: 38.8 MB). Free memory was 73.3 MB in the beginning and 96.7 MB in the end (delta: -23.4 MB). Peak memory consumption was 46.8 MB. Max. memory is 8.0 GB. * Witness Printer took 10.01 ms. Allocated memory is still 197.1 MB. Free memory was 96.7 MB in the beginning and 96.2 MB in the end (delta: 521.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 152]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 122, overapproximation of someBinaryArithmeticDOUBLEoperation at line 146, overapproximation of bitwiseAnd at line 121, overapproximation of someBinaryDOUBLEComparisonOperation at line 151. Possible FailurePath: [L20] static const double one_modf = 1.0; VAL [one_modf=1] [L146] double x = -1.0 / 0.0; [L147] double iptr = __VERIFIER_nondet_double(); [L23] __int32_t i0, i1, j0; [L24] __uint32_t i; VAL [one_modf=1] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (i0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (i1) = ew_u.parts.lsw [L31] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L32] COND TRUE j0 < 20 VAL [one_modf=1] [L33] COND TRUE j0 < 0 VAL [one_modf=1] [L35] ieee_double_shape_type iw_u; [L36] iw_u.parts.msw = (i0 & 0x80000000) [L37] iw_u.parts.lsw = (0) [L38] EXPR iw_u.value [L38] (*iptr) = iw_u.value [L40] return x; VAL [one_modf=1] [L148] double res = modf_double(x, &iptr); [L151] EXPR \read(iptr) [L114] __int32_t hx, lx; VAL [one_modf=1] [L116] ieee_double_shape_type ew_u; [L117] ew_u.value = (x) [L118] EXPR ew_u.parts.msw [L118] (hx) = ew_u.parts.msw [L119] EXPR ew_u.parts.lsw [L119] (lx) = ew_u.parts.lsw [L121] hx &= 0x7fffffff [L122] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L123] hx = 0x7ff00000 - hx [L124] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [one_modf=1] [L151] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) [L151] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_modf=1] [L151] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) VAL [one_modf=1] [L151] COND TRUE isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) [L152] reach_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 0 SDslu, 49 SDs, 0 SdLazy, 5 SolverSat, 0 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=52occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 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...