Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo", uses=false) Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+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.Examples.ElectrochromicWindow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow") translateModel(Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009622/0.0009622, allocations: 97.64 kB / 15.36 MB, free: 0.7344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.008414/0.008415, allocations: 169.8 kB / 16.27 MB, free: 6.652 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.429/1.429, allocations: 223.3 MB / 240.3 MB, free: 5.336 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.911/2.911, allocations: 473.4 MB / 0.7469 GB, free: 6.074 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.0004263/0.0004263, allocations: 10.34 kB / 0.9158 GB, free: 33.13 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3361/0.3365, allocations: 162.2 MB / 1.074 GB, free: 7.551 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow): time 0.01722/0.3538, allocations: 13.92 MB / 1.088 GB, free: 9.57 MB / 0.8419 GB Notification: Performance of NFInst.instExpressions: time 0.2199/0.5737, allocations: 156 MB / 1.24 GB, free: 13.04 MB / 0.9981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003845/0.5776, allocations: 55.69 kB / 1.24 GB, free: 12.98 MB / 0.9981 GB Notification: Performance of NFTyping.typeComponents: time 0.00862/0.5862, allocations: 2.21 MB / 1.242 GB, free: 10.77 MB / 0.9981 GB Notification: Performance of NFTyping.typeBindings: time 0.00752/0.5938, allocations: 1.469 MB / 1.244 GB, free: 9.293 MB / 0.9981 GB Notification: Performance of NFTyping.typeClassSections: time 0.007856/0.6016, allocations: 1.919 MB / 1.246 GB, free: 7.383 MB / 0.9981 GB Notification: Performance of NFFlatten.flatten: time 0.01002/0.6117, allocations: 7.19 MB / 1.253 GB, free: 180 kB / 0.9981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.7328/1.345, allocations: 1.783 MB / 1.254 GB, free: 8.551 MB / 0.9981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003803/1.348, allocations: 1.789 MB / 1.256 GB, free: 8.551 MB / 0.9981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003843/1.352, allocations: 1.875 MB / 1.258 GB, free: 8.547 MB / 0.9981 GB Notification: Performance of NFPackage.collectConstants: time 0.0009195/1.353, allocations: 124.1 kB / 1.258 GB, free: 8.547 MB / 0.9981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005235/1.358, allocations: 2.493 MB / 1.26 GB, free: 8.543 MB / 0.9981 GB Notification: Performance of NFScalarize.scalarize: time 0.004432/1.363, allocations: 4.332 MB / 1.265 GB, free: 8.543 MB / 0.9981 GB Notification: Performance of NFVerifyModel.verify: time 0.004424/1.367, allocations: 2.011 MB / 1.267 GB, free: 8.301 MB / 0.9981 GB Notification: Performance of NFConvertDAE.convert: time 0.01477/1.382, allocations: 7.785 MB / 1.274 GB, free: 7.375 MB / 0.9981 GB Notification: Performance of FrontEnd - DAE generated: time 4.519e-06/1.382, allocations: 0 / 1.274 GB, free: 7.375 MB / 0.9981 GB Notification: Performance of FrontEnd: time 2.875e-06/1.382, allocations: 1.031 kB / 1.274 GB, free: 7.375 MB / 0.9981 GB Notification: Performance of Transformations before backend: time 0.000261/1.382, allocations: 4 kB / 1.274 GB, free: 7.371 MB / 0.9981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 593 * Number of variables: 593 Notification: Performance of Generate backend data structure: time 0.01366/1.396, allocations: 4.724 MB / 1.279 GB, free: 5.055 MB / 0.9981 GB Notification: Performance of prepare preOptimizeDAE: time 4.743e-05/1.396, allocations: 13.59 kB / 1.279 GB, free: 5.051 MB / 0.9981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01767/1.414, allocations: 2.554 MB / 1.281 GB, free: 4.734 MB / 0.9981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.03006/1.444, allocations: 14.75 MB / 1.296 GB, free: 3.809 MB / 0.9981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002267/1.444, allocations: 221.8 kB / 1.296 GB, free: 3.801 MB / 0.9981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0009768/1.445, allocations: 311.3 kB / 1.296 GB, free: 3.797 MB / 0.9981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.007996/1.453, allocations: 3.841 MB / 1.3 GB, free: 3.445 MB / 0.9981 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.455e-05/1.453, allocations: 3.094 kB / 1.3 GB, free: 3.445 MB / 0.9981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003037/1.454, allocations: 95.03 kB / 1.3 GB, free: 3.445 MB / 0.9981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.129e-05/1.454, allocations: 53.69 kB / 1.3 GB, free: 3.445 MB / 0.9981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.007267/1.461, allocations: 3.687 MB / 1.304 GB, free: 3.395 MB / 0.9981 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 0.02829/1.489, allocations: 22.32 MB / 1.326 GB, free: 14.32 MB / 1.014 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007729/1.497, allocations: 3.277 MB / 1.329 GB, free: 14.23 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004701/1.502, allocations: 2.197 MB / 1.331 GB, free: 14.19 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000521/1.502, allocations: 429.8 kB / 1.331 GB, free: 13.81 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005138/1.507, allocations: 2.347 MB / 1.334 GB, free: 13.7 MB / 1.014 GB Notification: Performance of pre-optimization done (n=185): time 3.887e-06/1.507, allocations: 0 / 1.334 GB, free: 13.7 MB / 1.014 GB Notification: Performance of matching and sorting (n=185): time 0.0253/1.533, allocations: 8.291 MB / 1.342 GB, free: 11.15 MB / 1.014 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0003452/1.533, allocations: 423.9 kB / 1.342 GB, free: 10.78 MB / 1.014 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.03614/1.569, allocations: 21.55 MB / 1.363 GB, free: 7.848 MB / 1.029 GB Notification: Performance of collectPreVariables (initialization): time 0.00112/1.57, allocations: 93.36 kB / 1.363 GB, free: 7.754 MB / 1.029 GB Notification: Performance of collectInitialEqns (initialization): time 0.002324/1.573, allocations: 1.637 MB / 1.365 GB, free: 6.121 MB / 1.029 GB Notification: Performance of collectInitialBindings (initialization): time 0.001089/1.574, allocations: 0.6201 MB / 1.365 GB, free: 5.512 MB / 1.029 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.004233/1.578, allocations: 4.548 MB / 1.37 GB, free: 0.9375 MB / 1.029 GB Notification: Performance of setup shared object (initialization): time 8.557e-05/1.578, allocations: 305.1 kB / 1.37 GB, free: 0.6367 MB / 1.029 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.04049/1.619, allocations: 40.02 MB / 1.409 GB, free: 8.625 MB / 1.076 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0454/1.664, allocations: 41.59 MB / 1.45 GB, free: 14.75 MB / 1.123 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.05907/1.723, allocations: 49.76 MB / 1.498 GB, free: 12.57 MB / 1.17 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.384e-05/1.723, allocations: 4 kB / 1.498 GB, free: 12.57 MB / 1.17 GB Notification: Performance of matching and sorting (n=1918) (initialization): time 0.1216/1.845, allocations: 94.61 MB / 1.591 GB, free: 13.71 MB / 1.264 GB Notification: Performance of prepare postOptimizeDAE: time 0.0009901/1.846, allocations: 0.9755 MB / 1.592 GB, free: 12.44 MB / 1.264 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.1115/1.958, allocations: 67.6 MB / 1.658 GB, free: 8.531 MB / 1.326 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.04985/2.008, allocations: 5.474 MB / 1.663 GB, free: 3.047 MB / 1.326 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005806/2.013, allocations: 0.8682 MB / 1.664 GB, free: 2.223 MB / 1.326 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009452/2.023, allocations: 6.366 MB / 1.67 GB, free: 11.46 MB / 1.342 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00821/2.031, allocations: 0.631 MB / 1.671 GB, free: 10.83 MB / 1.342 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001505/2.033, allocations: 199 kB / 1.671 GB, free: 10.64 MB / 1.342 GB Notification: Performance of prepare postOptimizeDAE: time 8.796e-06/2.033, allocations: 4 kB / 1.671 GB, free: 10.64 MB / 1.342 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.7319/2.765, allocations: 93.89 MB / 1.763 GB, free: 0.5708 GB / 1.42 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0835/2.848, allocations: 65.8 MB / 1.827 GB, free: 0.5364 GB / 1.42 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001769/2.85, allocations: 0.5209 MB / 1.828 GB, free: 0.536 GB / 1.42 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006063/2.856, allocations: 0.9203 MB / 1.828 GB, free: 0.5353 GB / 1.42 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007522/2.864, allocations: 8.36 MB / 1.837 GB, free: 0.5273 GB / 1.42 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007348/2.871, allocations: 0.5495 MB / 1.837 GB, free: 0.527 GB / 1.42 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001159/2.872, allocations: 201.5 kB / 1.837 GB, free: 0.5269 GB / 1.42 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 98 * Number of states: 0 () * Number of discrete variables: 20 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,HDirTil.incAng.decAng.tNext,$PRE.HDirTil.incAng.decAng.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (429): * Single equations (assignments): 385 * Array equations: 39 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 3 * 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): 1 system {(1,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(5,23), (1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.004759/2.877, allocations: 2.827 MB / 1.84 GB, free: 0.5244 GB / 1.42 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001066/2.878, allocations: 359.2 kB / 1.84 GB, free: 0.5242 GB / 1.42 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01512/2.893, allocations: 6.268 MB / 1.847 GB, free: 0.5192 GB / 1.42 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.992e-05/2.893, allocations: 16 kB / 1.847 GB, free: 0.5192 GB / 1.42 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.042e-05/2.893, allocations: 7.969 kB / 1.847 GB, free: 0.5192 GB / 1.42 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.057e-05/2.893, allocations: 7.453 kB / 1.847 GB, free: 0.5192 GB / 1.42 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006677/2.9, allocations: 3.59 MB / 1.85 GB, free: 0.5158 GB / 1.42 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.03601/2.936, allocations: 6.803 MB / 1.857 GB, free: 0.5091 GB / 1.42 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002454/2.938, allocations: 349.6 kB / 1.857 GB, free: 0.5088 GB / 1.42 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.05687/2.995, allocations: 7.814 MB / 1.865 GB, free: 0.5012 GB / 1.42 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007207/2.996, allocations: 63.95 kB / 1.865 GB, free: 0.5011 GB / 1.42 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006908/3.003, allocations: 6.359 MB / 1.871 GB, free: 0.4946 GB / 1.42 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.435e-06/3.003, allocations: 6.719 kB / 1.871 GB, free: 0.4946 GB / 1.42 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01263/3.016, allocations: 5.508 MB / 1.876 GB, free: 0.4893 GB / 1.42 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002342/3.018, allocations: 0.9136 MB / 1.877 GB, free: 0.4884 GB / 1.42 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008011/3.019, allocations: 40.19 kB / 1.877 GB, free: 0.4884 GB / 1.42 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003158/3.022, allocations: 281.7 kB / 1.878 GB, free: 499.8 MB / 1.42 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003094/3.022, allocations: 137.8 kB / 1.878 GB, free: 499.7 MB / 1.42 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002142/3.023, allocations: 95.94 kB / 1.878 GB, free: 499.6 MB / 1.42 GB Notification: Performance of sorting global known variables: time 0.009953/3.033, allocations: 13.44 MB / 1.891 GB, free: 486.1 MB / 1.42 GB Notification: Performance of sort global known variables: time 6.42e-07/3.033, allocations: 0 / 1.891 GB, free: 486.1 MB / 1.42 GB Notification: Performance of remove unused functions: time 0.01239/3.045, allocations: 3.437 MB / 1.894 GB, free: 482.8 MB / 1.42 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 12 ($whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,HDirTil.incAng.decAng.tNext,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext) * Number of discrete states: 6 (weaDat.decAng.tNext,weaDat.eqnTim.tNext,weaDat.conTim.tNext,weaDat.conTimMin.tNext,weaDat.locTim.tNext,HDirTil.incAng.decAng.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (138): * Single equations (assignments): 127 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 6 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 3 * 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): 1 system {(1,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(5,27), (1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.003688/3.049, allocations: 1.082 MB / 1.895 GB, free: 482 MB / 1.42 GB Notification: Performance of simCode: created initialization part: time 0.0876/3.136, allocations: 104.7 MB / 1.998 GB, free: 377.3 MB / 1.42 GB Notification: Performance of simCode: created event and clocks part: time 1.204e-05/3.136, allocations: 0 / 1.998 GB, free: 377.3 MB / 1.42 GB Notification: Performance of simCode: created simulation system equations: time 0.006969/3.143, allocations: 3.826 MB / 2.001 GB, free: 373.4 MB / 1.42 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004534/3.148, allocations: 0.6653 MB / 2.002 GB, free: 372.8 MB / 1.42 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02925/3.177, allocations: 24.1 MB / 2.025 GB, free: 348.6 MB / 1.42 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004784/3.182, allocations: 5.188 MB / 2.031 GB, free: 343.4 MB / 1.42 GB Notification: Performance of simCode: alias equations: time 0.006645/3.189, allocations: 2.226 MB / 2.033 GB, free: 341.2 MB / 1.42 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0009858/3.19, allocations: 299.2 kB / 2.033 GB, free: 340.9 MB / 1.42 GB Notification: Performance of SimCode: time 9.82e-07/3.19, allocations: 0 / 2.033 GB, free: 340.9 MB / 1.42 GB Notification: Performance of Templates: time 0.1474/3.337, allocations: 94.67 MB / 2.125 GB, free: 246.4 MB / 1.42 GB make -j1 -f Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow.makefile (rm -f Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow.pipe ; mkfifo Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow.pipe ; head -c 1048576 < Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow.pipe >> ../files/Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow.sim & ./Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_1.6_Buildings.HeatTransfer.Windows.Examples.ElectrochromicWindow.pipe 2>&1)