Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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(IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow") translateModel(IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001394/0.001394, allocations: 100.1 kB / 15.88 MB, free: 12 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001405/0.001404, allocations: 202.9 kB / 16.79 MB, free: 6.84 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.439/1.439, allocations: 222.9 MB / 240.5 MB, free: 4.625 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.8255/0.8255, allocations: 126.7 MB / 417.3 MB, free: 7.398 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002037/0.002037, allocations: 72.69 kB / 0.4951 GB, free: 10.13 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1768/0.1788, allocations: 78.86 MB / 0.5721 GB, free: 11.47 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow): time 0.4462/0.6251, allocations: 159.4 MB / 0.7277 GB, free: 1.008 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.003405/0.6285, allocations: 1.776 MB / 0.7294 GB, free: 15.23 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003757/0.6289, allocations: 7.938 kB / 0.7294 GB, free: 15.22 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.0006463/0.6296, allocations: 139.2 kB / 0.7296 GB, free: 15.09 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.001477/0.6311, allocations: 0.4952 MB / 0.7301 GB, free: 14.59 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.001133/0.6323, allocations: 345.2 kB / 0.7304 GB, free: 14.26 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.003762/0.636, allocations: 3.35 MB / 0.7337 GB, free: 10.9 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00123/0.6373, allocations: 0.7619 MB / 0.7344 GB, free: 10.12 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002427/0.6397, allocations: 1.043 MB / 0.7354 GB, free: 9.078 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00101/0.6408, allocations: 0.7116 MB / 0.7361 GB, free: 8.363 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.0001056/0.6409, allocations: 36 kB / 0.7362 GB, free: 8.328 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001611/0.6425, allocations: 0.7951 MB / 0.7369 GB, free: 7.531 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0003441/0.6429, allocations: 282.9 kB / 0.7372 GB, free: 7.254 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.0007044/0.6436, allocations: 0.5206 MB / 0.7377 GB, free: 6.73 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.001871/0.6454, allocations: 1.382 MB / 0.7391 GB, free: 5.344 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 7.104e-06/0.6455, allocations: 0 / 0.7391 GB, free: 5.344 MB / 0.5606 GB Notification: Performance of FrontEnd: time 1.042e-06/0.6455, allocations: 0 / 0.7391 GB, free: 5.344 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 1.741e-05/0.6455, allocations: 0 / 0.7391 GB, free: 5.344 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: 126 * Number of variables: 126 Notification: Performance of Generate backend data structure: time 0.00259/0.6481, allocations: 1.447 MB / 0.7405 GB, free: 3.836 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 4.082e-05/0.6481, allocations: 8.031 kB / 0.7405 GB, free: 3.828 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000803/0.649, allocations: 190.4 kB / 0.7407 GB, free: 3.641 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001309/0.6503, allocations: 0.7945 MB / 0.7414 GB, free: 2.789 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.485e-05/0.6503, allocations: 45 kB / 0.7415 GB, free: 2.746 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001088/0.6505, allocations: 59.98 kB / 0.7415 GB, free: 2.688 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001301/0.6518, allocations: 0.7926 MB / 0.7423 GB, free: 1.824 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.865e-05/0.6518, allocations: 7.938 kB / 0.7423 GB, free: 1.816 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.534e-05/0.6519, allocations: 20 kB / 0.7423 GB, free: 1.797 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.926e-05/0.6519, allocations: 19.94 kB / 0.7424 GB, free: 1.777 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009921/0.6529, allocations: 0.5344 MB / 0.7429 GB, free: 1.238 MB / 0.5606 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 0.00501/0.6579, allocations: 4.587 MB / 0.7474 GB, free: 12.27 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008169/0.6587, allocations: 414.2 kB / 0.7478 GB, free: 11.86 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004261/0.6592, allocations: 248.6 kB / 0.748 GB, free: 11.61 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004101/0.6596, allocations: 190.7 kB / 0.7482 GB, free: 11.39 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006315/0.6602, allocations: 293 kB / 0.7485 GB, free: 11.08 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=31): time 2.244e-06/0.6602, allocations: 0 / 0.7485 GB, free: 11.08 MB / 0.5762 GB Notification: Performance of matching and sorting (n=31): time 0.001505/0.6618, allocations: 0.6317 MB / 0.7491 GB, free: 10.45 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.91e-05/0.6618, allocations: 89.05 kB / 0.7492 GB, free: 10.34 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00147/0.6633, allocations: 1.11 MB / 0.7502 GB, free: 9.211 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 5.749e-05/0.6634, allocations: 37.7 kB / 0.7503 GB, free: 9.168 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004614/0.6639, allocations: 492.2 kB / 0.7507 GB, free: 8.68 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001088/0.664, allocations: 106.5 kB / 0.7508 GB, free: 8.574 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002642/0.6642, allocations: 109.9 kB / 0.751 GB, free: 8.461 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 0.0001508/0.6644, allocations: 337.9 kB / 0.7513 GB, free: 8.125 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004269/0.6648, allocations: 214.4 kB / 0.7515 GB, free: 7.91 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007019/0.6655, allocations: 0.5096 MB / 0.752 GB, free: 7.27 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009992/0.6666, allocations: 0.6346 MB / 0.7526 GB, free: 6.555 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.201e-06/0.6666, allocations: 0 / 0.7526 GB, free: 6.555 MB / 0.5762 GB Notification: Performance of matching and sorting (n=54) (initialization): time 0.001406/0.668, allocations: 0.7242 MB / 0.7533 GB, free: 5.816 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 5.563e-05/0.668, allocations: 40.39 kB / 0.7533 GB, free: 5.773 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.2e-05/0.6681, allocations: 8 kB / 0.7534 GB, free: 5.766 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.211e-05/0.6681, allocations: 12 kB / 0.7534 GB, free: 5.754 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001898/0.67, allocations: 346.4 kB / 0.7537 GB, free: 5.418 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00488/0.6749, allocations: 6.091 MB / 0.7596 GB, free: 15.09 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001157/0.6761, allocations: 91.47 kB / 0.7597 GB, free: 15 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.135e-05/0.6761, allocations: 24.09 kB / 0.7598 GB, free: 14.98 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0008964/0.6771, allocations: 0.5006 MB / 0.7602 GB, free: 14.48 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006403/0.6777, allocations: 489.9 kB / 0.7607 GB, free: 13.86 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008604/0.6786, allocations: 0.5684 MB / 0.7613 GB, free: 13.21 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.929e-06/0.6786, allocations: 4 kB / 0.7613 GB, free: 13.21 MB / 0.5919 GB Notification: Performance of matching and sorting (n=54) (initialization_lambda0): time 0.001258/0.6799, allocations: 0.6303 MB / 0.7619 GB, free: 12.56 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 4.278e-05/0.6799, allocations: 37.7 kB / 0.7619 GB, free: 12.52 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.133e-06/0.6799, allocations: 4 kB / 0.7619 GB, free: 12.52 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 8.435e-06/0.6799, allocations: 8.656 kB / 0.7619 GB, free: 12.51 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000587/0.6805, allocations: 155.8 kB / 0.7621 GB, free: 12.36 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.267e-05/0.6806, allocations: 19.86 kB / 0.7621 GB, free: 12.34 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007132/0.6813, allocations: 91.94 kB / 0.7622 GB, free: 12.25 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.292e-05/0.6813, allocations: 24 kB / 0.7622 GB, free: 12.22 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (53): * Single equations (assignments): 42 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * 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): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002501/0.6816, allocations: 221.4 kB / 0.7624 GB, free: 12 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001357/0.6817, allocations: 98.78 kB / 0.7625 GB, free: 11.9 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00103/0.6828, allocations: 0.495 MB / 0.763 GB, free: 11.4 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.234e-06/0.6828, allocations: 4 kB / 0.763 GB, free: 11.4 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.67e-06/0.6828, allocations: 0 / 0.763 GB, free: 11.4 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.649e-06/0.6828, allocations: 0 / 0.763 GB, free: 11.4 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002293/0.6851, allocations: 1.383 MB / 0.7644 GB, free: 9.938 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.817e-06/0.6851, allocations: 4.062 kB / 0.7644 GB, free: 9.934 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006422/0.6858, allocations: 147.8 kB / 0.7645 GB, free: 9.789 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.837e-06/0.6858, allocations: 7.938 kB / 0.7645 GB, free: 9.781 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.572e-05/0.6858, allocations: 12 kB / 0.7645 GB, free: 9.77 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00394/0.6898, allocations: 6.02 MB / 0.7704 GB, free: 3.516 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.978e-06/0.6898, allocations: 0 / 0.7704 GB, free: 3.516 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00119/0.691, allocations: 0.6073 MB / 0.771 GB, free: 2.871 MB / 0.5919 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005151/0.6915, allocations: 211.8 kB / 0.7712 GB, free: 2.645 MB / 0.5919 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000199/0.6917, allocations: 12 kB / 0.7712 GB, free: 2.633 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005677/0.6923, allocations: 51.77 kB / 0.7712 GB, free: 2.582 MB / 0.5919 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.654e-05/0.6924, allocations: 31.95 kB / 0.7713 GB, free: 2.551 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.618e-05/0.6924, allocations: 12.14 kB / 0.7713 GB, free: 2.539 MB / 0.5919 GB Notification: Performance of sorting global known variables: time 0.001291/0.6937, allocations: 0.7914 MB / 0.7721 GB, free: 1.738 MB / 0.5919 GB Notification: Performance of sort global known variables: time 1.2e-07/0.6938, allocations: 0 / 0.7721 GB, free: 1.738 MB / 0.5919 GB Notification: Performance of remove unused functions: time 0.001379/0.6951, allocations: 407.4 kB / 0.7725 GB, free: 1.34 MB / 0.5919 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (31): * Single equations (assignments): 19 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * 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): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.000494/0.6956, allocations: 175.1 kB / 0.7726 GB, free: 1.168 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.003341/0.699, allocations: 1.081 MB / 0.7737 GB, free: 68 kB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 4.559e-06/0.699, allocations: 256 / 0.7737 GB, free: 68 kB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.0008784/0.6999, allocations: 296.3 kB / 0.774 GB, free: 15.78 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002393/0.7023, allocations: 461.9 kB / 0.7744 GB, free: 15.33 MB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003653/0.706, allocations: 2.097 MB / 0.7764 GB, free: 13.19 MB / 0.6075 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001015/0.707, allocations: 1.18 MB / 0.7776 GB, free: 11.98 MB / 0.6075 GB Notification: Performance of simCode: alias equations: time 0.001169/0.7082, allocations: 371.7 kB / 0.778 GB, free: 11.61 MB / 0.6075 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001768/0.7084, allocations: 67.42 kB / 0.778 GB, free: 11.54 MB / 0.6075 GB Notification: Performance of SimCode: time 1.223e-06/0.7084, allocations: 7.875 kB / 0.778 GB, free: 11.54 MB / 0.6075 GB Notification: Performance of Templates: time 0.03389/0.7423, allocations: 17.34 MB / 0.795 GB, free: 10.38 MB / 0.6231 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow.makefile (rm -f IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow.sim & ./IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesFlow.pipe 2>&1)