Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr AES_AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.001307/0.001307, allocations: 108.3 kB / 19.73 MB, free: 1.898 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.001423/0.001423, allocations: 207.7 kB / 23.01 MB, free: 4.988 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 1.484/1.484, allocations: 230.6 MB / 256.8 MB, free: 7.797 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/AES main/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/AES main/package.mo): time 0.1097/0.1097, allocations: 24.04 MB / 337.2 MB, free: 11.33 MB / 270.1 MB " [Timeout remaining time 180] Using package AES with version (/home/hudson/saved_omc/libraries/.openmodelica/libraries/AES main/package.mo) Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo) Using package Complex with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo) Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo) Running command: "" <> buildModelFMU(AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise,fileNamePrefix="AES_AES_Coursework_Tuning_brushup_MSL_loop_2dof_noise",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise,fileNamePrefix="AES_AES_Coursework_Tuning_brushup_MSL_loop_2dof_noise",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: AES requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0021/0.0021, allocations: 73.92 kB / 473.8 MB, free: 6.387 MB / 334.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3524/0.3545, allocations: 59.57 MB / 0.5209 GB, free: 10.17 MB / 382.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/Blocks/Interfaces.mo:1329:5-1330:50:writable] Warning: An inner declaration for outer component globalSeed could not be found and was automatically generated. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/Blocks/Interfaces.mo:1329:5-1330:50:writable] Notification: The diagnostics message for the missing inner is: Your model is using an outer \"globalSeed\" component but an inner \"globalSeed\" component is not defined and therefore a default inner \"globalSeed\" component is introduced by the tool. To change the default setting, drag Noise.GlobalSeed into your model and specify the seed. Notification: Performance of NFInst.instantiate(AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise): time 0.07042/0.425, allocations: 22.78 MB / 0.5432 GB, free: 2.168 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.002711/0.4277, allocations: 1.577 MB / 0.5447 GB, free: 0.9961 MB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001385/0.4278, allocations: 0 / 0.5447 GB, free: 0.9961 MB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0003217/0.4281, allocations: 71.56 kB / 0.5448 GB, free: 0.9414 MB / 382.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0002401/0.4284, allocations: 107.6 kB / 0.5449 GB, free: 0.8555 MB / 382.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/Math/Random.mo:1057:5-1146:31:writable] Warning: Pure function 'Modelica.Math.Random.Utilities.initializeImpureRandom' contains a call to impure function 'Modelica.Math.Random.Utilities.initializeImpureRandom.setInternalState'. Notification: Performance of NFTyping.typeClassSections: time 0.001006/0.4294, allocations: 0.5123 MB / 0.5454 GB, free: 480 kB / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.0004737/0.4299, allocations: 466.5 kB / 0.5458 GB, free: 112 kB / 382.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0001059/0.43, allocations: 42.36 kB / 0.5459 GB, free: 80 kB / 382.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0002613/0.4302, allocations: 184.8 kB / 0.546 GB, free: 15.94 MB / 398.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0006734/0.4309, allocations: 200.7 kB / 0.5462 GB, free: 15.8 MB / 398.1 MB Notification: Performance of NFPackage.collectConstants: time 7.091e-05/0.431, allocations: 24 kB / 0.5462 GB, free: 15.77 MB / 398.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0007468/0.4317, allocations: 442.4 kB / 0.5467 GB, free: 15.45 MB / 398.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001394/0.4319, allocations: 98.95 kB / 0.5468 GB, free: 15.37 MB / 398.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001278/0.432, allocations: 100.8 kB / 0.5469 GB, free: 15.29 MB / 398.1 MB Notification: Performance of NFConvertDAE.convert: time 0.000896/0.4329, allocations: 0.5437 MB / 0.5474 GB, free: 14.89 MB / 398.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.709e-06/0.4329, allocations: 4.797 kB / 0.5474 GB, free: 14.89 MB / 398.1 MB Notification: Performance of FrontEnd: time 1.433e-06/0.4329, allocations: 0 / 0.5474 GB, free: 14.89 MB / 398.1 MB Notification: Performance of Transformations before backend: time 7.083e-06/0.4329, allocations: 0 / 0.5474 GB, free: 14.89 MB / 398.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 34 * Number of variables: 34 Notification: Performance of Generate backend data structure: time 0.002081/0.435, allocations: 0.7476 MB / 0.5481 GB, free: 14.21 MB / 398.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.258e-05/0.435, allocations: 8.031 kB / 0.5481 GB, free: 14.2 MB / 398.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.098e-05/0.4351, allocations: 46.59 kB / 0.5482 GB, free: 14.15 MB / 398.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001337/0.4352, allocations: 40.7 kB / 0.5482 GB, free: 14.11 MB / 398.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009698/0.4362, allocations: 344 kB / 0.5485 GB, free: 13.81 MB / 398.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.933e-05/0.4362, allocations: 16.36 kB / 0.5486 GB, free: 13.79 MB / 398.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 4.899e-05/0.4363, allocations: 23.94 kB / 0.5486 GB, free: 13.77 MB / 398.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004041/0.4367, allocations: 178.4 kB / 0.5487 GB, free: 13.62 MB / 398.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.316e-05/0.4367, allocations: 0 / 0.5487 GB, free: 13.62 MB / 398.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.347e-05/0.4367, allocations: 11.94 kB / 0.5488 GB, free: 13.61 MB / 398.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.414e-06/0.4367, allocations: 4 kB / 0.5488 GB, free: 13.61 MB / 398.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0004078/0.4371, allocations: 173.5 kB / 0.5489 GB, free: 13.47 MB / 398.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001214/0.4383, allocations: 0.5715 MB / 0.5495 GB, free: 12.94 MB / 398.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0007379/0.4391, allocations: 256.8 kB / 0.5497 GB, free: 12.72 MB / 398.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002329/0.4393, allocations: 104.4 kB / 0.5498 GB, free: 12.63 MB / 398.1 MB Notification: Performance of preOpt evalFunc (simulation): time 2.119e-05/0.4393, allocations: 4 kB / 0.5498 GB, free: 12.63 MB / 398.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003526/0.4397, allocations: 173.5 kB / 0.55 GB, free: 12.48 MB / 398.1 MB Notification: Performance of pre-optimization done (n=25): time 1.823e-06/0.4397, allocations: 0 / 0.55 GB, free: 12.48 MB / 398.1 MB Notification: Performance of matching and sorting (n=25): time 0.001694/0.4414, allocations: 0.5332 MB / 0.5505 GB, free: 12.04 MB / 398.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 5.921e-05/0.4414, allocations: 64.62 kB / 0.5506 GB, free: 11.96 MB / 398.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009144/0.4423, allocations: 420.7 kB / 0.551 GB, free: 11.62 MB / 398.1 MB Notification: Performance of collectPreVariables (initialization): time 4.337e-05/0.4424, allocations: 35.86 kB / 0.551 GB, free: 11.58 MB / 398.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001283/0.4425, allocations: 161.8 kB / 0.5512 GB, free: 11.43 MB / 398.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001006/0.4426, allocations: 94.31 kB / 0.5513 GB, free: 11.34 MB / 398.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001162/0.4427, allocations: 55.48 kB / 0.5513 GB, free: 11.29 MB / 398.1 MB Notification: Performance of setup shared object (initialization): time 0.0001722/0.4429, allocations: 354.1 kB / 0.5517 GB, free: 10.94 MB / 398.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002624/0.4432, allocations: 115.4 kB / 0.5518 GB, free: 10.84 MB / 398.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002839/0.4434, allocations: 149.4 kB / 0.5519 GB, free: 10.71 MB / 398.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002513/0.446, allocations: 0.6722 MB / 0.5526 GB, free: 10.18 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.016e-06/0.446, allocations: 0 / 0.5526 GB, free: 10.18 MB / 398.1 MB Notification: Performance of matching and sorting (n=39) (initialization): time 0.001053/0.447, allocations: 459.3 kB / 0.553 GB, free: 9.777 MB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.973e-05/0.447, allocations: 4.609 kB / 0.553 GB, free: 9.773 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.127e-05/0.447, allocations: 4 kB / 0.553 GB, free: 9.77 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002939/0.4473, allocations: 70.34 kB / 0.5531 GB, free: 9.715 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000216/0.4476, allocations: 46.22 kB / 0.5531 GB, free: 9.676 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002063/0.4496, allocations: 1.634 MB / 0.5547 GB, free: 8.004 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004763/0.4501, allocations: 65.55 kB / 0.5548 GB, free: 7.957 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.848e-05/0.4501, allocations: 8.75 kB / 0.5548 GB, free: 7.949 MB / 398.1 MB Warning: Assuming fixed start value for the following 4 variables: Fn.x_scaled[1]:VARIABLE(fixed = true protected = true ) \"Scaled vector x\" type: Real [1] Cfb.x_scaled[1]:VARIABLE(fixed = true protected = true ) \"Scaled vector x\" type: Real [1] Process.x_scaled[2]:VARIABLE(fixed = true protected = true ) \"Scaled vector x\" type: Real [2] Process.x_scaled[1]:VARIABLE(fixed = true protected = true ) \"Scaled vector x\" type: Real [2] Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 17 ($whenCondition1,globalSeed.id_impure,globalSeed.seed,noise.actualGlobalSeed,noise.localSeed,$PRE.noise.r_raw,$PRE.noise.r,$PRE.noise.state[4],$PRE.noise.state[3],$PRE.noise.state[2],$PRE.noise.state[1],noise.r_raw,noise.r,noise.state[4],noise.state[3],noise.state[2],noise.state[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (31): * Single equations (assignments): 29 * Array equations: 1 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,5,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0003357/0.4505, allocations: 173.9 kB / 0.555 GB, free: 7.777 MB / 398.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 7.721e-05/0.4505, allocations: 36.45 kB / 0.555 GB, free: 7.742 MB / 398.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 8.918e-05/0.4506, allocations: 42.89 kB / 0.555 GB, free: 7.699 MB / 398.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.988e-06/0.4506, allocations: 4 kB / 0.555 GB, free: 7.695 MB / 398.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.414e-06/0.4506, allocations: 0.7969 kB / 0.555 GB, free: 7.695 MB / 398.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.879e-06/0.4507, allocations: 4.688 kB / 0.555 GB, free: 7.691 MB / 398.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004007/0.4511, allocations: 285.5 kB / 0.5553 GB, free: 7.402 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.805e-06/0.4511, allocations: 8.781 kB / 0.5553 GB, free: 7.395 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001717/0.4512, allocations: 19.8 kB / 0.5553 GB, free: 7.379 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002524/0.4515, allocations: 74.58 kB / 0.5554 GB, free: 7.32 MB / 398.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.753e-05/0.4515, allocations: 9.125 kB / 0.5554 GB, free: 7.312 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002244/0.4538, allocations: 1.82 MB / 0.5572 GB, free: 5.473 MB / 398.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.723e-06/0.4538, allocations: 0 / 0.5572 GB, free: 5.473 MB / 398.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00111/0.4549, allocations: 0.5066 MB / 0.5577 GB, free: 5.016 MB / 398.1 MB Notification: Performance of postOpt removeConstants (simulation): time 8.956e-05/0.455, allocations: 46.17 kB / 0.5577 GB, free: 4.973 MB / 398.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.088e-05/0.455, allocations: 6.297 kB / 0.5577 GB, free: 4.969 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003594/0.4554, allocations: 53.17 kB / 0.5578 GB, free: 4.934 MB / 398.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.028e-05/0.4555, allocations: 21.31 kB / 0.5578 GB, free: 4.922 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.066e-05/0.4555, allocations: 9.031 kB / 0.5578 GB, free: 4.914 MB / 398.1 MB Notification: Performance of sorting global known variables: time 0.0008127/0.4563, allocations: 319.7 kB / 0.5581 GB, free: 4.664 MB / 398.1 MB Notification: Performance of sort global known variables: time 1.5e-07/0.4563, allocations: 0 / 0.5581 GB, free: 4.664 MB / 398.1 MB Notification: Performance of remove unused functions: time 0.0007915/0.4571, allocations: 158.2 kB / 0.5583 GB, free: 4.516 MB / 398.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (Process.x_scaled[1],Process.x_scaled[2],Cfb.x_scaled[1],Fn.x_scaled[1]) * Number of discrete variables: 7 ($whenCondition1,noise.state[1],noise.state[2],noise.state[3],noise.state[4],noise.r,noise.r_raw) * Number of discrete states: 4 (noise.state[1],noise.state[2],noise.state[3],noise.state[4]) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (16): * Single equations (assignments): 13 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,5,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.002227/0.4593, allocations: 1.289 MB / 0.5595 GB, free: 3.305 MB / 398.1 MB Notification: Performance of simCode: created initialization part: time 0.0009332/0.4602, allocations: 396.6 kB / 0.5599 GB, free: 2.949 MB / 398.1 MB Notification: Performance of simCode: created event and clocks part: time 2.274e-06/0.4602, allocations: 3.938 kB / 0.5599 GB, free: 2.945 MB / 398.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0005458/0.4608, allocations: 267.5 kB / 0.5602 GB, free: 2.699 MB / 398.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003357/0.4611, allocations: 40.36 kB / 0.5602 GB, free: 2.664 MB / 398.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006705/0.4678, allocations: 3.524 MB / 0.5636 GB, free: 15.09 MB / 414.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002105/0.468, allocations: 191.4 kB / 0.5638 GB, free: 14.88 MB / 414.1 MB Notification: Performance of simCode: alias equations: time 0.0001718/0.4682, allocations: 58.23 kB / 0.5639 GB, free: 14.82 MB / 414.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001589/0.4684, allocations: 91.41 kB / 0.564 GB, free: 14.73 MB / 414.1 MB Notification: Performance of SimCode: time 7.11e-07/0.4684, allocations: 4 kB / 0.564 GB, free: 14.73 MB / 414.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04165/0.51, allocations: 9.556 MB / 0.5733 GB, free: 5.285 MB / 414.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 11.94/12.45, allocations: 18.02 kB / 0.5733 GB, free: 5.273 MB / 414.1 MB " [Timeout remaining time 647] (rm -f AES_AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise.pipe ; mkfifo AES_AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise.pipe ; head -c 1048576 < AES_AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise.pipe >> ../files/AES_AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_AES_AES_Coursework_Tuning_brushup_MSL_loop_2dof_noise_fmu --startTime=0 --stopTime=60 --stepSize=0.12 --timeout=50 --tolerance=1e-06 AES_AES_Coursework_Tuning_brushup_MSL_loop_2dof_noise.fmu > AES_AES.Coursework.Tuning_brushup.MSL_loop_2dof_noise.pipe 2>&1) [Timeout 52.5] [Calling sys.exit(0), Time elapsed: 15.22307196073234] Failed to read output from testmodel.py, exit status != 0: 12.570747094694525 12.587881047 12.15169314 Calling exit ...