Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass") translateModel(Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001479/0.001479, allocations: 108 kB / 15.61 MB, free: 152 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001787/0.001787, allocations: 194.2 kB / 16.53 MB, free: 6.664 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.5/1.5, allocations: 205.1 MB / 222.4 MB, free: 4.574 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.556/1.556, allocations: 251.7 MB / 0.5092 GB, free: 3.16 MB / 414.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001362/0.001362, allocations: 71.91 kB / 0.6223 GB, free: 1.523 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5854/0.5868, allocations: 104.7 MB / 0.7245 GB, free: 12.95 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass): time 0.006144/0.593, allocations: 5.103 MB / 0.7295 GB, free: 7.816 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.006052/0.599, allocations: 4.703 MB / 0.7341 GB, free: 3.09 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000433/0.5995, allocations: 15.94 kB / 0.7341 GB, free: 3.074 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.001511/0.6011, allocations: 0.6157 MB / 0.7347 GB, free: 2.457 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.0007848/0.6018, allocations: 412.9 kB / 0.7351 GB, free: 2.051 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.001558/0.6034, allocations: 0.7404 MB / 0.7358 GB, free: 1.309 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.0016/0.605, allocations: 1.844 MB / 0.7376 GB, free: 15.46 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006809/0.6057, allocations: 0.5622 MB / 0.7382 GB, free: 14.88 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0005969/0.6063, allocations: 0.6774 MB / 0.7388 GB, free: 14.2 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008279/0.6072, allocations: 0.7977 MB / 0.7396 GB, free: 13.39 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.000196/0.6074, allocations: 152 kB / 0.7398 GB, free: 13.25 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0007913/0.6082, allocations: 387.8 kB / 0.7401 GB, free: 12.87 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0003309/0.6085, allocations: 370.8 kB / 0.7405 GB, free: 12.5 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.0008125/0.6093, allocations: 0.7154 MB / 0.7412 GB, free: 11.79 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.002024/0.6114, allocations: 2.084 MB / 0.7432 GB, free: 9.691 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 6.021e-06/0.6114, allocations: 3.938 kB / 0.7432 GB, free: 9.688 MB / 0.5606 GB Notification: Performance of FrontEnd: time 1.432e-06/0.6114, allocations: 0 / 0.7432 GB, free: 9.688 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 1.733e-05/0.6114, allocations: 0 / 0.7432 GB, free: 9.688 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 184 * Number of variables: 184 Notification: Performance of Generate backend data structure: time 0.003787/0.6152, allocations: 1.877 MB / 0.7451 GB, free: 7.758 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 4.097e-05/0.6153, allocations: 8.031 kB / 0.7451 GB, free: 7.75 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02757/0.6428, allocations: 4.302 MB / 0.7493 GB, free: 3.441 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.02513/0.668, allocations: 4.507 MB / 0.7537 GB, free: 14.87 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.97e-05/0.6681, allocations: 58.38 kB / 0.7537 GB, free: 14.82 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003855/0.6685, allocations: 72.38 kB / 0.7538 GB, free: 14.75 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005827/0.6743, allocations: 2.087 MB / 0.7558 GB, free: 12.65 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.882e-05/0.6744, allocations: 0 / 0.7558 GB, free: 12.65 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001491/0.6745, allocations: 32 kB / 0.7559 GB, free: 12.62 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.516e-05/0.6745, allocations: 16 kB / 0.7559 GB, free: 12.6 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005298/0.6798, allocations: 1.795 MB / 0.7576 GB, free: 10.8 MB / 0.5762 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 0.01002/0.6899, allocations: 7.377 MB / 0.7648 GB, free: 2.609 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.005332/0.6952, allocations: 1.876 MB / 0.7667 GB, free: 0.7266 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004744/0.7, allocations: 1.568 MB / 0.7682 GB, free: 15.16 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004626/0.7005, allocations: 396.9 kB / 0.7686 GB, free: 14.7 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.291e-05/0.7005, allocations: 39.12 kB / 0.7686 GB, free: 14.65 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=70): time 3.186e-06/0.7005, allocations: 0 / 0.7686 GB, free: 14.65 MB / 0.5919 GB Notification: Performance of matching and sorting (n=70): time 0.03452/0.735, allocations: 9.052 MB / 0.7775 GB, free: 5.559 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.506e-05/0.7351, allocations: 59.97 kB / 0.7775 GB, free: 5.488 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001436/0.7366, allocations: 1.06 MB / 0.7785 GB, free: 4.41 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 0.0002587/0.7368, allocations: 37.7 kB / 0.7786 GB, free: 4.367 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004748/0.7373, allocations: 0.4967 MB / 0.7791 GB, free: 3.863 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002891/0.7376, allocations: 240.4 kB / 0.7793 GB, free: 3.625 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006978/0.7383, allocations: 278.1 kB / 0.7796 GB, free: 3.348 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0001357/0.7384, allocations: 337.9 kB / 0.7799 GB, free: 3.012 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.009076/0.7475, allocations: 2.458 MB / 0.7823 GB, free: 0.5469 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.008568/0.7561, allocations: 2.566 MB / 0.7848 GB, free: 13.95 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0127/0.7688, allocations: 3.452 MB / 0.7882 GB, free: 10.49 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.913e-06/0.7689, allocations: 0 / 0.7882 GB, free: 10.49 MB / 0.6075 GB Notification: Performance of matching and sorting (n=82) (initialization): time 0.02335/0.7922, allocations: 6.528 MB / 0.7945 GB, free: 3.949 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 2.108e-05/0.7923, allocations: 4 kB / 0.7945 GB, free: 3.945 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.01801/0.8103, allocations: 5.158 MB / 0.7996 GB, free: 14.77 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0904/0.9007, allocations: 10.98 MB / 0.8103 GB, free: 3.777 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003504/0.9043, allocations: 479.3 kB / 0.8108 GB, free: 3.309 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007139/0.9114, allocations: 3.122 MB / 0.8138 GB, free: 160 kB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004656/0.9161, allocations: 0.5065 MB / 0.8143 GB, free: 15.65 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003065/0.9164, allocations: 71.92 kB / 0.8144 GB, free: 15.58 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.009399/0.9258, allocations: 2.784 MB / 0.8171 GB, free: 12.79 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.008796/0.9347, allocations: 2.55 MB / 0.8196 GB, free: 10.2 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.01277/0.9474, allocations: 3.424 MB / 0.8229 GB, free: 6.773 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.883e-06/0.9475, allocations: 0 / 0.8229 GB, free: 6.773 MB / 0.6387 GB Notification: Performance of matching and sorting (n=82) (initialization_lambda0): time 0.01977/0.9673, allocations: 5.543 MB / 0.8283 GB, free: 1.215 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 1.974e-05/0.9673, allocations: 4 kB / 0.8283 GB, free: 1.211 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.01635/0.9837, allocations: 4.771 MB / 0.833 GB, free: 12.43 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002343/0.986, allocations: 0.812 MB / 0.8338 GB, free: 11.61 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004241/0.9903, allocations: 0.5891 MB / 0.8344 GB, free: 11.02 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009412/0.9997, allocations: 6.633 MB / 0.8408 GB, free: 4.238 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00455/1.004, allocations: 0.4911 MB / 0.8413 GB, free: 3.746 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002498/1.005, allocations: 71.92 kB / 0.8414 GB, free: 3.676 MB / 0.6544 GB Notification: Model statistics after passing the back-end for initialization: * 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 initialization (29): * Single equations (assignments): 28 * Array equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(11,43)} Notification: Performance of prepare postOptimizeDAE: time 0.0004144/1.005, allocations: 204.3 kB / 0.8416 GB, free: 3.469 MB / 0.6544 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000293/1.005, allocations: 122.5 kB / 0.8417 GB, free: 3.348 MB / 0.6544 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01612/1.021, allocations: 4.932 MB / 0.8465 GB, free: 14.4 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.151e-05/1.021, allocations: 12 kB / 0.8465 GB, free: 14.39 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.876e-06/1.021, allocations: 0 / 0.8465 GB, free: 14.39 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.039e-05/1.021, allocations: 3.984 kB / 0.8465 GB, free: 14.39 MB / 0.67 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0168/1.038, allocations: 6.747 MB / 0.8531 GB, free: 7.414 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.03471/1.073, allocations: 5.986 MB / 0.859 GB, free: 1.414 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001776/1.075, allocations: 235.7 kB / 0.8592 GB, free: 1.184 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.04668/1.122, allocations: 7.159 MB / 0.8662 GB, free: 10.01 MB / 0.6856 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002313/1.122, allocations: 43.95 kB / 0.8662 GB, free: 9.969 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006884/1.129, allocations: 3.151 MB / 0.8693 GB, free: 6.789 MB / 0.6856 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.394e-06/1.129, allocations: 0 / 0.8693 GB, free: 6.789 MB / 0.6856 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03575/1.164, allocations: 6.27 MB / 0.8754 GB, free: 500 kB / 0.6856 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001085/1.166, allocations: 495.3 kB / 0.8759 GB, free: 15.98 MB / 0.7012 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002409/1.166, allocations: 16 kB / 0.8759 GB, free: 15.96 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002643/1.168, allocations: 295.6 kB / 0.8762 GB, free: 15.68 MB / 0.7012 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001273/1.169, allocations: 44.59 kB / 0.8762 GB, free: 15.63 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001337/1.169, allocations: 51.95 kB / 0.8763 GB, free: 15.58 MB / 0.7012 GB Notification: Performance of sorting global known variables: time 0.001096/1.17, allocations: 0.7565 MB / 0.877 GB, free: 14.82 MB / 0.7012 GB Notification: Performance of sort global known variables: time 1.783e-06/1.17, allocations: 0 / 0.877 GB, free: 14.82 MB / 0.7012 GB Notification: Performance of remove unused functions: time 0.002074/1.172, allocations: 0.7254 MB / 0.8777 GB, free: 14.09 MB / 0.7012 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * 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 (17): * Single equations (assignments): 16 * Array equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(11,51)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003688/1.172, allocations: 179 kB / 0.8779 GB, free: 13.91 MB / 0.7012 GB Notification: Performance of simCode: created initialization part: time 0.02241/1.195, allocations: 6.683 MB / 0.8844 GB, free: 7.207 MB / 0.7012 GB Notification: Performance of simCode: created event and clocks part: time 4.308e-06/1.195, allocations: 3.938 kB / 0.8844 GB, free: 7.203 MB / 0.7012 GB Notification: Performance of simCode: created simulation system equations: time 0.00565/1.2, allocations: 1.688 MB / 0.8861 GB, free: 5.516 MB / 0.7012 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001485/1.202, allocations: 270.1 kB / 0.8863 GB, free: 5.246 MB / 0.7012 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008433/1.21, allocations: 3.502 MB / 0.8898 GB, free: 1.723 MB / 0.7012 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000888/1.211, allocations: 1.302 MB / 0.891 GB, free: 400 kB / 0.7012 GB Notification: Performance of simCode: alias equations: time 0.003591/1.215, allocations: 0.7844 MB / 0.8918 GB, free: 15.6 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006061/1.215, allocations: 123.3 kB / 0.8919 GB, free: 15.48 MB / 0.7169 GB Notification: Performance of SimCode: time 8.32e-07/1.216, allocations: 0 / 0.8919 GB, free: 15.48 MB / 0.7169 GB Notification: Performance of Templates: time 0.404/1.62, allocations: 63.07 MB / 0.9535 GB, free: 142.2 MB / 0.7169 GB make -j1 -f Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.makefile (rm -f Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.pipe >> ../files/Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.sim & ./Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.pipe 2>&1)