/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-178dd20 [2021-01-06 16:05:56,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:05:56,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:05:56,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:05:56,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:05:56,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:05:56,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:05:56,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:05:56,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:05:56,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:05:56,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:05:56,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:05:56,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:05:56,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:05:56,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:05:56,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:05:56,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:05:56,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:05:56,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:05:56,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:05:56,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:05:56,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:05:56,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:05:56,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:05:56,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 16:05:56,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 16:05:56,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 16:05:56,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 16:05:56,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 16:05:56,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 16:05:56,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:05:56,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:05:56,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:05:56,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:05:56,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:05:56,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:05:56,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:05:56,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:05:56,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:05:56,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:05:56,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:05:56,468 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 16:05:56,495 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:05:56,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:05:56,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:05:56,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:05:56,498 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:05:56,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:05:56,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:05:56,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:05:56,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:05:56,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:05:56,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:05:56,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:05:56,500 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:05:56,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:05:56,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:05:56,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:05:56,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:05:56,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:05:56,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:05:56,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:05:56,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:05:56,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:05:56,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:05:56,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:05:56,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:05:56,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:05:56,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:05:56,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:05:56,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:05:56,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:05:56,999 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:05:57,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2021-01-06 16:05:57,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd80008fb/028091e239764820b22462eac6a1320a/FLAG5095590ef [2021-01-06 16:05:57,732 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:05:57,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2021-01-06 16:05:57,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd80008fb/028091e239764820b22462eac6a1320a/FLAG5095590ef [2021-01-06 16:05:58,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fd80008fb/028091e239764820b22462eac6a1320a [2021-01-06 16:05:58,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:05:58,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:05:58,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:05:58,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:05:58,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:05:58,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65176aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58, skipping insertion in model container [2021-01-06 16:05:58,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:05:58,138 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,] [2021-01-06 16:05:58,488 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] [2021-01-06 16:05:58,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:05:58,507 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,] [2021-01-06 16:05:58,557 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] [2021-01-06 16:05:58,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:05:58,580 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:05:58,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58 WrapperNode [2021-01-06 16:05:58,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:05:58,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:05:58,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:05:58,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:05:58,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:05:58,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:05:58,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:05:58,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:05:58,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (1/1) ... [2021-01-06 16:05:58,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:05:58,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:05:58,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:05:58,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:05:58,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (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 16:05:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-01-06 16:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 16:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-01-06 16:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:05:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-01-06 16:05:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 16:05:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:05:59,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:05:59,671 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-01-06 16:05:59,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:05:59 BoogieIcfgContainer [2021-01-06 16:05:59,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:05:59,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:05:59,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:05:59,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:05:59,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:05:58" (1/3) ... [2021-01-06 16:05:59,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a53ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:05:59, skipping insertion in model container [2021-01-06 16:05:59,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:05:58" (2/3) ... [2021-01-06 16:05:59,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a53ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:05:59, skipping insertion in model container [2021-01-06 16:05:59,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:05:59" (3/3) ... [2021-01-06 16:05:59,683 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211b.c [2021-01-06 16:05:59,689 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:05:59,695 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:05:59,716 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:05:59,746 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:05:59,746 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:05:59,746 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:05:59,746 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:05:59,747 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:05:59,747 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:05:59,747 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:05:59,747 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:05:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2021-01-06 16:05:59,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 16:05:59,770 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:05:59,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:05:59,771 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:05:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:05:59,778 INFO L82 PathProgramCache]: Analyzing trace with hash -892017235, now seen corresponding path program 1 times [2021-01-06 16:05:59,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:05:59,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761048189] [2021-01-06 16:05:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:05:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:05:59,974 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 16:05:59,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761048189] [2021-01-06 16:05:59,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:05:59,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 16:05:59,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293488630] [2021-01-06 16:05:59,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 16:05:59,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:06:00,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 16:06:00,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 16:06:00,004 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2021-01-06 16:06:00,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:06:00,031 INFO L93 Difference]: Finished difference Result 102 states and 164 transitions. [2021-01-06 16:06:00,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 16:06:00,033 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2021-01-06 16:06:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:06:00,045 INFO L225 Difference]: With dead ends: 102 [2021-01-06 16:06:00,045 INFO L226 Difference]: Without dead ends: 49 [2021-01-06 16:06:00,050 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 16:06:00,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-01-06 16:06:00,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-01-06 16:06:00,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-01-06 16:06:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2021-01-06 16:06:00,111 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 15 [2021-01-06 16:06:00,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:06:00,112 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2021-01-06 16:06:00,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 16:06:00,113 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2021-01-06 16:06:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 16:06:00,115 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:00,115 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 16:06:00,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:06:00,116 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:00,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:00,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1752581688, now seen corresponding path program 1 times [2021-01-06 16:06:00,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:00,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345339856] [2021-01-06 16:06:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:06:00,428 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 16:06:00,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345339856] [2021-01-06 16:06:00,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:06:00,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 16:06:00,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488553487] [2021-01-06 16:06:00,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 16:06:00,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:06:00,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 16:06:00,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:06:00,434 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 3 states. [2021-01-06 16:06:00,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:06:00,485 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2021-01-06 16:06:00,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 16:06:00,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-01-06 16:06:00,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:06:00,488 INFO L225 Difference]: With dead ends: 52 [2021-01-06 16:06:00,489 INFO L226 Difference]: Without dead ends: 49 [2021-01-06 16:06:00,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:06:00,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-01-06 16:06:00,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-01-06 16:06:00,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-01-06 16:06:00,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2021-01-06 16:06:00,506 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 18 [2021-01-06 16:06:00,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:06:00,509 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2021-01-06 16:06:00,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 16:06:00,510 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2021-01-06 16:06:00,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-06 16:06:00,511 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:06:00,511 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] [2021-01-06 16:06:00,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:06:00,512 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:06:00,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:06:00,512 INFO L82 PathProgramCache]: Analyzing trace with hash 581418946, now seen corresponding path program 1 times [2021-01-06 16:06:00,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:06:00,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561148655] [2021-01-06 16:06:00,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:06:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:06:00,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:06:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:06:01,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:06:01,218 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 16:06:01,218 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 16:06:01,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 16:06:01,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:06:01 BoogieIcfgContainer [2021-01-06 16:06:01,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:06:01,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:06:01,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:06:01,278 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:06:01,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:05:59" (3/4) ... [2021-01-06 16:06:01,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-06 16:06:01,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:06:01,284 INFO L168 Benchmark]: Toolchain (without parser) took 3209.71 ms. Allocated memory is still 154.1 MB. Free memory was 129.1 MB in the beginning and 54.1 MB in the end (delta: 75.0 MB). Peak memory consumption was 75.7 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:01,285 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 125.8 MB. Free memory is still 80.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:06:01,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.26 ms. Allocated memory is still 154.1 MB. Free memory was 128.9 MB in the beginning and 116.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:01,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.72 ms. Allocated memory is still 154.1 MB. Free memory was 116.2 MB in the beginning and 112.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:01,288 INFO L168 Benchmark]: Boogie Preprocessor took 106.21 ms. Allocated memory is still 154.1 MB. Free memory was 112.6 MB in the beginning and 109.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:01,288 INFO L168 Benchmark]: RCFGBuilder took 888.71 ms. Allocated memory is still 154.1 MB. Free memory was 109.3 MB in the beginning and 108.8 MB in the end (delta: 476.8 kB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:01,289 INFO L168 Benchmark]: TraceAbstraction took 1602.08 ms. Allocated memory is still 154.1 MB. Free memory was 108.4 MB in the beginning and 54.6 MB in the end (delta: 53.8 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:01,290 INFO L168 Benchmark]: Witness Printer took 4.00 ms. Allocated memory is still 154.1 MB. Free memory was 54.6 MB in the beginning and 54.1 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:06:01,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 125.8 MB. Free memory is still 80.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 503.26 ms. Allocated memory is still 154.1 MB. Free memory was 128.9 MB in the beginning and 116.2 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 94.72 ms. Allocated memory is still 154.1 MB. Free memory was 116.2 MB in the beginning and 112.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 106.21 ms. Allocated memory is still 154.1 MB. Free memory was 112.6 MB in the beginning and 109.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 888.71 ms. Allocated memory is still 154.1 MB. Free memory was 109.3 MB in the beginning and 108.8 MB in the end (delta: 476.8 kB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1602.08 ms. Allocated memory is still 154.1 MB. Free memory was 108.4 MB in the beginning and 54.6 MB in the end (delta: 53.8 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. * Witness Printer took 4.00 ms. Allocated memory is still 154.1 MB. Free memory was 54.6 MB in the beginning and 54.1 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: 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: 1.4s, 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, 0.6s 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...