Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/package.mo): time 0.549/0.549, allocations: 120.4 MB / 140.2 MB, free: 12.97 MB / 138.7 MB " [Timeout remaining time 179] Using package ThermoSysPro with version 4.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/package.mo) Running command: translateModel(ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases") translateModel(ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.094e-06/2.094e-06, allocations: 0 / 218 MB, free: 8.621 MB / 202.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 1.796e-05/2.006e-05, allocations: 6.516 kB / 218 MB, free: 8.617 MB / 202.7 MB Notification: Automatically loaded package Complex 4.1.0 due to uses annotation from Modelica. Notification: Automatically loaded package ModelicaServices 4.1.0 due to uses annotation from Modelica. Notification: Automatically loaded package Modelica 4.1.0 due to usage. Notification: Performance of NFInst.instantiate(ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases): time 0.9563/0.9563, allocations: 254.8 MB / 472.8 MB, free: 8.309 MB / 426.7 MB Notification: Performance of NFInst.instExpressions: time 0.325/1.281, allocations: 147.1 MB / 0.6054 GB, free: 13.09 MB / 0.5417 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002164/1.282, allocations: 4 kB / 0.6054 GB, free: 13.09 MB / 0.5417 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/WaterSteam/BoundaryConditions/Sink.mo:17:3-19:16:writable] Warning: Connector C is not balanced: The number of potential variables (4) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/MultiFluids/HeatExchangers/StaticExchangerWaterSteamFlueGases.mo:50:3-51:83:writable] Warning: Connector Cws2 is not balanced: The number of potential variables (4) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/MultiFluids/HeatExchangers/StaticExchangerWaterSteamFlueGases.mo:52:3-54:16:writable] Warning: Connector Cws1 is not balanced: The number of potential variables (4) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/MultiFluids/HeatExchangers/StaticExchangerWaterSteamFlueGases.mo:55:3-56:83:writable] Warning: Connector Cfg1 is not balanced: The number of potential variables (7) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/MultiFluids/HeatExchangers/StaticExchangerWaterSteamFlueGases.mo:57:3-59:16:writable] Warning: Connector Cfg2 is not balanced: The number of potential variables (7) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/WaterSteam/BoundaryConditions/SourcePQ.mo:29:3-30:52:writable] Warning: Connector C is not balanced: The number of potential variables (4) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/FlueGases/BoundaryConditions/SourcePQ.mo:18:3-19:83:writable] Warning: Connector C is not balanced: The number of potential variables (7) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/FlueGases/BoundaryConditions/Sink.mo:15:3-17:16:writable] Warning: Connector C is not balanced: The number of potential variables (7) is not equal to the number of flow variables (0). Notification: Performance of NFTyping.typeComponents: time 0.0003582/1.282, allocations: 127.1 kB / 0.6055 GB, free: 12.96 MB / 0.5417 GB Notification: Performance of NFTyping.typeBindings: time 0.0002263/1.282, allocations: 170.7 kB / 0.6057 GB, free: 12.8 MB / 0.5417 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/Properties/WaterSteam/IF97_packages.mo:783:9-783:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/Properties/WaterSteam/IF97_packages.mo:850:9-850:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/Properties/WaterSteam/IF97_packages.mo:1088:9-1088:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. Notification: Performance of NFTyping.typeClassSections: time 0.01125/1.293, allocations: 6.086 MB / 0.6116 GB, free: 6.723 MB / 0.5417 GB Notification: Performance of NFFlatten.flatten: time 0.0004921/1.294, allocations: 0.5685 MB / 0.6122 GB, free: 6.152 MB / 0.5417 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002609/1.294, allocations: 188.9 kB / 0.6124 GB, free: 5.969 MB / 0.5417 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003145/1.294, allocations: 343.2 kB / 0.6127 GB, free: 5.633 MB / 0.5417 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000158/1.295, allocations: 143.6 kB / 0.6128 GB, free: 5.492 MB / 0.5417 GB Notification: Performance of NFPackage.collectConstants: time 3.741e-05/1.295, allocations: 48 kB / 0.6129 GB, free: 5.445 MB / 0.5417 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01489/1.31, allocations: 12.14 MB / 0.6247 GB, free: 9.293 MB / 0.5573 GB Notification: Performance of NFScalarize.scalarize: time 0.0001032/1.31, allocations: 99.66 kB / 0.6248 GB, free: 9.195 MB / 0.5573 GB Notification: Performance of NFVerifyModel.verify: time 0.0001634/1.31, allocations: 163.6 kB / 0.625 GB, free: 9.035 MB / 0.5573 GB Notification: Performance of NFConvertDAE.convert: time 0.01119/1.321, allocations: 7.734 MB / 0.6325 GB, free: 1.285 MB / 0.5573 GB Notification: Performance of FrontEnd - DAE generated: time 3.226e-06/1.321, allocations: 0 / 0.6325 GB, free: 1.285 MB / 0.5573 GB Notification: Performance of FrontEnd: time 1.403e-06/1.321, allocations: 0 / 0.6325 GB, free: 1.285 MB / 0.5573 GB Notification: Performance of Transformations before backend: time 7.855e-06/1.321, allocations: 0 / 0.6325 GB, free: 1.285 MB / 0.5573 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 136 * Number of variables: 136 Notification: Performance of Generate backend data structure: time 0.002696/1.324, allocations: 1.142 MB / 0.6337 GB, free: 112 kB / 0.5573 GB Notification: Performance of prepare preOptimizeDAE: time 3.519e-05/1.324, allocations: 12.03 kB / 0.6337 GB, free: 100 kB / 0.5573 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 6.97e-05/1.324, allocations: 57.55 kB / 0.6337 GB, free: 44 kB / 0.5573 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002215/1.324, allocations: 221.5 kB / 0.6339 GB, free: 15.8 MB / 0.573 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.387e-05/1.324, allocations: 36.94 kB / 0.634 GB, free: 15.77 MB / 0.573 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.483e-05/1.324, allocations: 44 kB / 0.634 GB, free: 15.72 MB / 0.573 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005698/1.325, allocations: 0.5231 MB / 0.6345 GB, free: 15.16 MB / 0.573 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.25e-05/1.325, allocations: 0 / 0.6345 GB, free: 15.16 MB / 0.573 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.592e-05/1.325, allocations: 16 kB / 0.6345 GB, free: 15.15 MB / 0.573 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.433e-05/1.325, allocations: 19.98 kB / 0.6346 GB, free: 15.13 MB / 0.573 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003459/1.325, allocations: 347.8 kB / 0.6349 GB, free: 14.79 MB / 0.573 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001567/1.327, allocations: 1.801 MB / 0.6366 GB, free: 12.93 MB / 0.573 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001875/1.327, allocations: 135.9 kB / 0.6368 GB, free: 12.79 MB / 0.573 GB Notification: Performance of preOpt resolveLoops (simulation): time 9.137e-05/1.327, allocations: 73.92 kB / 0.6368 GB, free: 12.72 MB / 0.573 GB Notification: Performance of preOpt evalFunc (simulation): time 0.03492/1.362, allocations: 21.08 MB / 0.6574 GB, free: 7.613 MB / 0.5886 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.444e-05/1.362, allocations: 34.56 kB / 0.6575 GB, free: 7.57 MB / 0.5886 GB Notification: Performance of pre-optimization done (n=40): time 2.305e-06/1.362, allocations: 0 / 0.6575 GB, free: 7.57 MB / 0.5886 GB Notification: Performance of matching and sorting (n=40): time 0.001185/1.363, allocations: 0.5378 MB / 0.658 GB, free: 7.023 MB / 0.5886 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.553e-05/1.363, allocations: 55.41 kB / 0.658 GB, free: 6.957 MB / 0.5886 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001691/1.363, allocations: 216.5 kB / 0.6583 GB, free: 6.734 MB / 0.5886 GB Notification: Performance of collectPreVariables (initialization): time 1.492e-05/1.363, allocations: 25.7 kB / 0.6583 GB, free: 6.703 MB / 0.5886 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001119/1.363, allocations: 240.9 kB / 0.6585 GB, free: 6.461 MB / 0.5886 GB Notification: Performance of collectInitialBindings (initialization): time 6.085e-05/1.363, allocations: 138.8 kB / 0.6586 GB, free: 6.324 MB / 0.5886 GB Notification: Performance of simplifyInitialFunctions (initialization): time 7.02e-05/1.364, allocations: 65.69 kB / 0.6587 GB, free: 6.254 MB / 0.5886 GB Notification: Performance of setup shared object (initialization): time 8.095e-05/1.364, allocations: 334.8 kB / 0.659 GB, free: 5.918 MB / 0.5886 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000108/1.364, allocations: 81.41 kB / 0.6591 GB, free: 5.84 MB / 0.5886 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001396/1.364, allocations: 168.3 kB / 0.6593 GB, free: 5.645 MB / 0.5886 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0002619/1.364, allocations: 275 kB / 0.6595 GB, free: 5.344 MB / 0.5886 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.937e-06/1.364, allocations: 4 kB / 0.6595 GB, free: 5.34 MB / 0.5886 GB Notification: Performance of matching and sorting (n=53) (initialization): time 0.000583/1.365, allocations: 455.3 kB / 0.66 GB, free: 4.883 MB / 0.5886 GB Notification: Performance of prepare postOptimizeDAE: time 1.685e-05/1.365, allocations: 4 kB / 0.66 GB, free: 4.879 MB / 0.5886 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.716e-06/1.365, allocations: 4 kB / 0.66 GB, free: 4.875 MB / 0.5886 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005283/1.365, allocations: 302.5 kB / 0.6603 GB, free: 4.574 MB / 0.5886 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001425/1.365, allocations: 31.98 kB / 0.6603 GB, free: 4.543 MB / 0.5886 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000801/1.366, allocations: 1.833 MB / 0.6621 GB, free: 2.637 MB / 0.5886 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 9.174e-05/1.366, allocations: 28.3 kB / 0.6621 GB, free: 2.609 MB / 0.5886 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.931e-05/1.366, allocations: 16 kB / 0.6621 GB, free: 2.594 MB / 0.5886 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 8 (Puits_Fumees.C.a,Source_Fumees.C.b,source_Eau.C.b,EchangeurEfficacite.Cfg2.b,EchangeurEfficacite.Cfg1.a,EchangeurEfficacite.Cws1.a,EchangeurEfficacite.Cws2.b,puits_Eau.C.a) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (21): * Single equations (assignments): 17 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,1), (1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.0001444/1.366, allocations: 154 kB / 0.6623 GB, free: 2.434 MB / 0.5886 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 2.771e-05/1.366, allocations: 27.81 kB / 0.6623 GB, free: 2.406 MB / 0.5886 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006895/1.367, allocations: 0.7011 MB / 0.663 GB, free: 1.699 MB / 0.5886 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0005224/1.368, allocations: 0.5496 MB / 0.6635 GB, free: 1.137 MB / 0.5886 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.402e-06/1.368, allocations: 9.594 kB / 0.6635 GB, free: 1.129 MB / 0.5886 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.629e-06/1.368, allocations: 0 / 0.6635 GB, free: 1.129 MB / 0.5886 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001358/1.369, allocations: 1.187 MB / 0.6647 GB, free: 15.89 MB / 0.6042 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.166e-06/1.369, allocations: 0 / 0.6647 GB, free: 15.89 MB / 0.6042 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001381/1.369, allocations: 67.91 kB / 0.6647 GB, free: 15.83 MB / 0.6042 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002568/1.369, allocations: 205.6 kB / 0.6649 GB, free: 15.62 MB / 0.6042 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.827e-05/1.369, allocations: 16.56 kB / 0.665 GB, free: 15.61 MB / 0.6042 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007202/1.37, allocations: 1.865 MB / 0.6668 GB, free: 13.67 MB / 0.6042 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.273e-06/1.37, allocations: 4.281 kB / 0.6668 GB, free: 13.66 MB / 0.6042 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005621/1.371, allocations: 0.6478 MB / 0.6674 GB, free: 12.99 MB / 0.6042 GB Notification: Performance of postOpt removeConstants (simulation): time 3.289e-05/1.371, allocations: 39.58 kB / 0.6675 GB, free: 12.95 MB / 0.6042 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.126e-05/1.371, allocations: 8.562 kB / 0.6675 GB, free: 12.95 MB / 0.6042 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 6.893e-05/1.371, allocations: 12 kB / 0.6675 GB, free: 12.93 MB / 0.6042 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 3.469e-05/1.371, allocations: 35.88 kB / 0.6675 GB, free: 12.9 MB / 0.6042 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.099e-05/1.371, allocations: 8.562 kB / 0.6675 GB, free: 12.89 MB / 0.6042 GB Notification: Performance of sorting global known variables: time 8.875e-05/1.371, allocations: 161.2 kB / 0.6677 GB, free: 12.73 MB / 0.6042 GB Notification: Performance of sort global known variables: time 5e-08/1.371, allocations: 0 / 0.6677 GB, free: 12.73 MB / 0.6042 GB Notification: Performance of remove unused functions: time 0.00179/1.373, allocations: 0.8808 MB / 0.6685 GB, free: 11.85 MB / 0.6042 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (38): * Single equations (assignments): 34 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,1), (1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.00253/1.375, allocations: 1.226 MB / 0.6697 GB, free: 10.62 MB / 0.6042 GB Notification: Performance of simCode: created initialization part: time 0.0005803/1.376, allocations: 453.3 kB / 0.6702 GB, free: 10.16 MB / 0.6042 GB Notification: Performance of simCode: created event and clocks part: time 1.824e-06/1.376, allocations: 128 / 0.6702 GB, free: 10.16 MB / 0.6042 GB Notification: Performance of simCode: created simulation system equations: time 0.000238/1.376, allocations: 224.3 kB / 0.6704 GB, free: 9.941 MB / 0.6042 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004909/1.377, allocations: 153 kB / 0.6705 GB, free: 9.801 MB / 0.6042 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001149/1.378, allocations: 0.9106 MB / 0.6714 GB, free: 8.859 MB / 0.6042 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001564/1.378, allocations: 271.5 kB / 0.6717 GB, free: 8.57 MB / 0.6042 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 4.382e-05/1.378, allocations: 28.5 kB / 0.6717 GB, free: 8.539 MB / 0.6042 GB Notification: Performance of SimCode: time 7.71e-07/1.378, allocations: 0 / 0.6717 GB, free: 8.539 MB / 0.6042 GB Notification: Performance of Templates: time 0.02158/1.4, allocations: 26.12 MB / 0.6972 GB, free: 14.43 MB / 0.6355 GB " [Timeout remaining time 658] make -j1 -f ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.makefile [Timeout 660] (rm -f ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.pipe ; mkfifo ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.pipe ; head -c 1048576 < ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.pipe >> ../files/ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.sim & ./ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases -abortSlowSimulation -alarm=480 -lv LOG_STATS > ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 7.352715144865215] Failed to read output from testmodel.py, exit status != 0: 1.7584116514772177 1.689915093 0.36758371700000003 Calling exit ...