Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor.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.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor") translateModel(Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001183/0.001183, allocations: 111.3 kB / 15.23 MB, free: 0.6602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001391/0.001391, allocations: 190.4 kB / 16.13 MB, free: 6.656 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.421/1.421, allocations: 222.9 MB / 239.8 MB, free: 4.578 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.843/2.843, allocations: 472.6 MB / 0.7447 GB, free: 4.91 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001219/0.001219, allocations: 77.28 kB / 0.9114 GB, free: 33.6 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3025/0.3037, allocations: 159.9 MB / 1.068 GB, free: 10.93 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor): time 0.1146/0.4183, allocations: 130 MB / 1.194 GB, free: 8.477 MB / 0.9512 GB Notification: Performance of NFInst.instExpressions: time 0.03421/0.4526, allocations: 25.22 MB / 1.219 GB, free: 15.2 MB / 0.9825 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005106/0.4577, allocations: 131.2 kB / 1.219 GB, free: 15.07 MB / 0.9825 GB Notification: Performance of NFTyping.typeComponents: time 0.005067/0.4629, allocations: 1.414 MB / 1.221 GB, free: 13.64 MB / 0.9825 GB Notification: Performance of NFTyping.typeBindings: time 0.01283/0.4757, allocations: 4.16 MB / 1.225 GB, free: 9.473 MB / 0.9825 GB Notification: Performance of NFTyping.typeClassSections: time 0.008898/0.4846, allocations: 3.183 MB / 1.228 GB, free: 6.32 MB / 0.9825 GB Notification: Performance of NFFlatten.flatten: time 0.01387/0.4985, allocations: 11.45 MB / 1.239 GB, free: 10.84 MB / 0.9981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00461/0.5032, allocations: 2.619 MB / 1.242 GB, free: 8.156 MB / 0.9981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.007813/0.511, allocations: 2.854 MB / 1.244 GB, free: 5.289 MB / 0.9981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005175/0.5162, allocations: 2.427 MB / 1.247 GB, free: 2.852 MB / 0.9981 GB Notification: Performance of NFPackage.collectConstants: time 0.0008523/0.5171, allocations: 172 kB / 1.247 GB, free: 2.684 MB / 0.9981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.007506/0.5246, allocations: 2.519 MB / 1.249 GB, free: 164 kB / 0.9981 GB Notification: Performance of NFScalarize.scalarize: time 0.695/1.22, allocations: 0.6873 MB / 1.25 GB, free: 53.24 MB / 0.9981 GB Notification: Performance of NFVerifyModel.verify: time 0.005401/1.225, allocations: 1.778 MB / 1.252 GB, free: 53.24 MB / 0.9981 GB Notification: Performance of NFConvertDAE.convert: time 0.01499/1.24, allocations: 6.186 MB / 1.258 GB, free: 53.04 MB / 0.9981 GB Notification: Performance of FrontEnd - DAE generated: time 8.115e-06/1.24, allocations: 4.688 kB / 1.258 GB, free: 53.04 MB / 0.9981 GB Notification: Performance of FrontEnd: time 3.125e-06/1.24, allocations: 0.9688 kB / 1.258 GB, free: 53.04 MB / 0.9981 GB Notification: Performance of Transformations before backend: time 0.0002175/1.24, allocations: 0 / 1.258 GB, free: 53.04 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: 581 * Number of variables: 581 Notification: Performance of Generate backend data structure: time 0.01221/1.253, allocations: 4.08 MB / 1.262 GB, free: 51.26 MB / 0.9981 GB Notification: Performance of prepare preOptimizeDAE: time 4.556e-05/1.253, allocations: 8.922 kB / 1.262 GB, free: 51.26 MB / 0.9981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01187/1.265, allocations: 1.376 MB / 1.263 GB, free: 51.08 MB / 0.9981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006948/1.271, allocations: 2.948 MB / 1.266 GB, free: 50.46 MB / 0.9981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004022/1.272, allocations: 253.9 kB / 1.266 GB, free: 50.39 MB / 0.9981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0009698/1.273, allocations: 235.3 kB / 1.266 GB, free: 50.39 MB / 0.9981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.009227/1.282, allocations: 3.207 MB / 1.27 GB, free: 49.91 MB / 0.9981 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.11e-05/1.282, allocations: 7.328 kB / 1.27 GB, free: 49.91 MB / 0.9981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003775/1.283, allocations: 99.88 kB / 1.27 GB, free: 49.91 MB / 0.9981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001266/1.283, allocations: 69.09 kB / 1.27 GB, free: 49.91 MB / 0.9981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00994/1.293, allocations: 2.837 MB / 1.273 GB, free: 49.84 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 0.02279/1.316, allocations: 13.42 MB / 1.286 GB, free: 43.89 MB / 0.9981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004532/1.32, allocations: 1.485 MB / 1.287 GB, free: 43.84 MB / 0.9981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.003336/1.323, allocations: 0.937 MB / 1.288 GB, free: 43.81 MB / 0.9981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.002011/1.325, allocations: 1.784 MB / 1.29 GB, free: 41.84 MB / 0.9981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004596/1.33, allocations: 1.214 MB / 1.291 GB, free: 41.63 MB / 0.9981 GB Notification: Performance of pre-optimization done (n=130): time 5.691e-06/1.33, allocations: 0 / 1.291 GB, free: 41.63 MB / 0.9981 GB Notification: Performance of matching and sorting (n=130): time 0.04368/1.374, allocations: 5.83 MB / 1.297 GB, free: 41.06 MB / 0.9981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0003086/1.374, allocations: 0.5805 MB / 1.297 GB, free: 40.37 MB / 0.9981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007671/1.382, allocations: 2.505 MB / 1.3 GB, free: 40.12 MB / 0.9981 GB Notification: Performance of collectPreVariables (initialization): time 0.0007254/1.383, allocations: 62.05 kB / 1.3 GB, free: 40.09 MB / 0.9981 GB Notification: Performance of collectInitialEqns (initialization): time 0.001222/1.384, allocations: 1.336 MB / 1.301 GB, free: 39.62 MB / 0.9981 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006345/1.385, allocations: 459.5 kB / 1.301 GB, free: 39.34 MB / 0.9981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000814/1.385, allocations: 465.8 kB / 1.302 GB, free: 39.3 MB / 0.9981 GB Notification: Performance of setup shared object (initialization): time 4.349e-05/1.385, allocations: 310.2 kB / 1.302 GB, free: 39 MB / 0.9981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004032/1.389, allocations: 1.004 MB / 1.303 GB, free: 38.97 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004485/1.394, allocations: 1.591 MB / 1.305 GB, free: 38.32 MB / 0.9981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.007487/1.401, allocations: 2.269 MB / 1.307 GB, free: 37.79 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.113e-05/1.401, allocations: 6.812 kB / 1.307 GB, free: 37.79 MB / 0.9981 GB Notification: Performance of matching and sorting (n=227) (initialization): time 0.024/1.425, allocations: 4.122 MB / 1.311 GB, free: 37.44 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 9.586e-05/1.426, allocations: 34.86 kB / 1.311 GB, free: 37.41 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.028e-05/1.426, allocations: 12.78 kB / 1.311 GB, free: 37.41 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00355/1.429, allocations: 0.9448 MB / 1.312 GB, free: 37.35 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003139/1.432, allocations: 499.3 kB / 1.312 GB, free: 37.34 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00324/1.436, allocations: 1.991 MB / 1.314 GB, free: 36.27 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006359/1.442, allocations: 0.4971 MB / 1.315 GB, free: 36.14 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005442/1.443, allocations: 106.8 kB / 1.315 GB, free: 36.14 MB / 0.9981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.005685/1.448, allocations: 1.506 MB / 1.316 GB, free: 36.04 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.004482/1.453, allocations: 1.564 MB / 1.318 GB, free: 35.38 MB / 0.9981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.007497/1.46, allocations: 2.255 MB / 1.32 GB, free: 34.86 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.806e-05/1.46, allocations: 2.531 kB / 1.32 GB, free: 34.86 MB / 0.9981 GB Notification: Performance of matching and sorting (n=227) (initialization_lambda0): time 0.02459/1.485, allocations: 4.08 MB / 1.324 GB, free: 34.5 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 6.289e-05/1.485, allocations: 38.42 kB / 1.324 GB, free: 34.47 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.691e-05/1.485, allocations: 13.53 kB / 1.324 GB, free: 34.47 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003455/1.489, allocations: 0.9482 MB / 1.325 GB, free: 34.41 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002988/1.492, allocations: 492.3 kB / 1.326 GB, free: 34.41 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00307/1.495, allocations: 1.981 MB / 1.327 GB, free: 33.34 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006053/1.501, allocations: 454.8 kB / 1.328 GB, free: 33.26 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005955/1.501, allocations: 104.3 kB / 1.328 GB, free: 33.26 MB / 0.9981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 53 * Number of states: 0 () * Number of discrete variables: 10 (realToInteger.y,N.count,$PRE.N.count,N.T_start,$PRE.N.T_start,heaPum1.com.isOn,$PRE.heaPum1.com.isOn,heaPum.com.isOn,$PRE.heaPum.com.isOn,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (186): * Single equations (assignments): 183 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(2,19), (2,19)} Notification: Performance of prepare postOptimizeDAE: time 0.001133/1.502, allocations: 304.7 kB / 1.328 GB, free: 33.07 MB / 0.9981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00162/1.504, allocations: 276.7 kB / 1.329 GB, free: 32.93 MB / 0.9981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01251/1.517, allocations: 2.516 MB / 1.331 GB, free: 32.62 MB / 0.9981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.388e-05/1.517, allocations: 16.97 kB / 1.331 GB, free: 32.62 MB / 0.9981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.73e-05/1.517, allocations: 5.781 kB / 1.331 GB, free: 32.62 MB / 0.9981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.009907/1.527, allocations: 2.138 MB / 1.333 GB, free: 31.92 MB / 0.9981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02782/1.554, allocations: 7.461 MB / 1.34 GB, free: 28.8 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.45e-05/1.555, allocations: 6 kB / 1.34 GB, free: 28.8 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001966/1.556, allocations: 287.8 kB / 1.341 GB, free: 28.71 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003358/1.56, allocations: 0.9451 MB / 1.342 GB, free: 28.3 MB / 0.9981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003494/1.56, allocations: 45.52 kB / 1.342 GB, free: 28.27 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00297/1.563, allocations: 1.973 MB / 1.344 GB, free: 26.74 MB / 0.9981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.825e-06/1.563, allocations: 10.22 kB / 1.344 GB, free: 26.74 MB / 0.9981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01257/1.576, allocations: 3.633 MB / 1.347 GB, free: 24.64 MB / 0.9981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002077/1.578, allocations: 0.5899 MB / 1.348 GB, free: 24.15 MB / 0.9981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001227/1.579, allocations: 39.64 kB / 1.348 GB, free: 24.12 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0045/1.584, allocations: 279 kB / 1.348 GB, free: 24 MB / 0.9981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002889/1.584, allocations: 121.6 kB / 1.348 GB, free: 23.94 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002665/1.584, allocations: 71.55 kB / 1.348 GB, free: 23.91 MB / 0.9981 GB Notification: Performance of sorting global known variables: time 0.003772/1.588, allocations: 1.757 MB / 1.35 GB, free: 22.96 MB / 0.9981 GB Notification: Performance of sort global known variables: time 1.9e-07/1.588, allocations: 0 / 1.35 GB, free: 22.96 MB / 0.9981 GB Notification: Performance of remove unused functions: time 0.007773/1.596, allocations: 1.678 MB / 1.352 GB, free: 22.6 MB / 0.9981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 33 * Number of states: 4 (heaPum.con.vol.dynBal.U,heaPum.eva.vol.dynBal.U,heaPum1.con.vol.dynBal.U,heaPum1.eva.vol.dynBal.U) * Number of discrete variables: 6 ($whenCondition1,heaPum.com.isOn,heaPum1.com.isOn,N.T_start,N.count,realToInteger.y) * Number of discrete states: 3 (N.count,heaPum1.com.isOn,heaPum.com.isOn) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (88): * Single equations (assignments): 82 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(2,19), (2,19)} Notification: Performance of Backend phase and start with SimCode phase: time 0.00284/1.599, allocations: 0.8143 MB / 1.352 GB, free: 22.25 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.01398/1.613, allocations: 3.688 MB / 1.356 GB, free: 20.54 MB / 0.9981 GB Notification: Performance of simCode: created event and clocks part: time 1.806e-05/1.613, allocations: 4.219 kB / 1.356 GB, free: 20.54 MB / 0.9981 GB Notification: Performance of simCode: created simulation system equations: time 0.003994/1.617, allocations: 1.08 MB / 1.357 GB, free: 20.05 MB / 0.9981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.009956/1.627, allocations: 1.387 MB / 1.358 GB, free: 19.38 MB / 0.9981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01366/1.641, allocations: 6.131 MB / 1.364 GB, free: 13.18 MB / 0.9981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002046/1.643, allocations: 1.715 MB / 1.366 GB, free: 11.44 MB / 0.9981 GB Notification: Performance of simCode: alias equations: time 0.005597/1.648, allocations: 0.6956 MB / 1.367 GB, free: 10.76 MB / 0.9981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001142/1.649, allocations: 235.3 kB / 1.367 GB, free: 10.53 MB / 0.9981 GB Notification: Performance of SimCode: time 1.162e-06/1.649, allocations: 0 / 1.367 GB, free: 10.53 MB / 0.9981 GB Notification: Performance of Templates: time 0.1277/1.777, allocations: 69.01 MB / 1.434 GB, free: 6.594 MB / 1.061 GB make -j1 -f Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor.makefile (rm -f Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor.pipe ; mkfifo Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor.pipe ; head -c 1048576 < Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor.pipe >> ../files/Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor.sim & ./Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_1.6_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_ScalingFactor.pipe 2>&1)