Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N.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.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001241/0.001241, allocations: 90.92 kB / 15.35 MB, free: 0.7422 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.01182/0.01182, allocations: 180.5 kB / 16.26 MB, free: 6.605 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.43/1.43, 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 2.941/2.941, allocations: 473.4 MB / 0.7469 GB, free: 6.039 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.00034/0.00034, allocations: 7.812 kB / 0.9158 GB, free: 33.04 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3438/0.3441, allocations: 162.2 MB / 1.074 GB, free: 7.527 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N): time 0.03089/0.3751, allocations: 26.6 MB / 1.1 GB, free: 12.84 MB / 0.8575 GB Notification: Performance of NFInst.instExpressions: time 0.1746/0.5497, allocations: 153.8 MB / 1.25 GB, free: 2.516 MB / 0.9981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004203/0.5539, allocations: 67.69 kB / 1.25 GB, free: 2.449 MB / 0.9981 GB Notification: Performance of NFTyping.typeComponents: time 0.003251/0.5572, allocations: 500 kB / 1.251 GB, free: 1.957 MB / 0.9981 GB Notification: Performance of NFTyping.typeBindings: time 0.007725/0.565, allocations: 1.535 MB / 1.252 GB, free: 428 kB / 0.9981 GB Notification: Performance of NFTyping.typeClassSections: time 0.8703/1.435, allocations: 2.156 MB / 1.254 GB, free: 14.27 MB / 0.9981 GB Notification: Performance of NFFlatten.flatten: time 0.0129/1.448, allocations: 7.84 MB / 1.262 GB, free: 14.25 MB / 0.9981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01441/1.463, allocations: 7.85 MB / 1.27 GB, free: 12.88 MB / 0.9981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005429/1.468, allocations: 1.753 MB / 1.271 GB, free: 12.87 MB / 0.9981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.007543/1.476, allocations: 2.399 MB / 1.274 GB, free: 12.86 MB / 0.9981 GB Notification: Performance of NFPackage.collectConstants: time 0.002324/1.478, allocations: 193.8 kB / 1.274 GB, free: 12.86 MB / 0.9981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00473/1.483, allocations: 0.9405 MB / 1.275 GB, free: 12.86 MB / 0.9981 GB Notification: Performance of NFScalarize.scalarize: time 0.003245/1.486, allocations: 1.404 MB / 1.276 GB, free: 12.86 MB / 0.9981 GB Notification: Performance of NFVerifyModel.verify: time 0.006176/1.492, allocations: 2.143 MB / 1.278 GB, free: 12.43 MB / 0.9981 GB Notification: Performance of NFConvertDAE.convert: time 0.01443/1.507, allocations: 8.293 MB / 1.286 GB, free: 11.55 MB / 0.9981 GB Notification: Performance of FrontEnd - DAE generated: time 9.258e-06/1.507, allocations: 0.9375 kB / 1.286 GB, free: 11.55 MB / 0.9981 GB Notification: Performance of FrontEnd: time 2.655e-06/1.507, allocations: 3.375 kB / 1.286 GB, free: 11.55 MB / 0.9981 GB Notification: Performance of Transformations before backend: time 0.0003708/1.507, allocations: 4 kB / 1.286 GB, free: 11.55 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: 1192 * Number of variables: 1192 Notification: Performance of Generate backend data structure: time 0.01522/1.522, allocations: 4.032 MB / 1.29 GB, free: 9.676 MB / 0.9981 GB Notification: Performance of prepare preOptimizeDAE: time 6.139e-05/1.523, allocations: 12.84 kB / 1.29 GB, free: 9.672 MB / 0.9981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01577/1.538, allocations: 2.11 MB / 1.292 GB, free: 9.367 MB / 0.9981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00724/1.546, allocations: 2.482 MB / 1.295 GB, free: 8.789 MB / 0.9981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004147/1.546, allocations: 343.2 kB / 1.295 GB, free: 8.777 MB / 0.9981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002285/1.548, allocations: 449.2 kB / 1.296 GB, free: 8.773 MB / 0.9981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02124/1.57, allocations: 6.915 MB / 1.302 GB, free: 8.152 MB / 0.9981 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001329/1.57, allocations: 14.94 kB / 1.302 GB, free: 8.145 MB / 0.9981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007788/1.571, allocations: 189.6 kB / 1.303 GB, free: 8.145 MB / 0.9981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002969/1.571, allocations: 238.3 kB / 1.303 GB, free: 8.129 MB / 0.9981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01947/1.59, allocations: 6.845 MB / 1.31 GB, free: 8.043 MB / 0.9981 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04397/1.634, allocations: 25.23 MB / 1.334 GB, free: 9.93 MB / 1.014 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01077/1.645, allocations: 4.398 MB / 1.338 GB, free: 7.535 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005017/1.65, allocations: 2 MB / 1.34 GB, free: 6.492 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0008649/1.651, allocations: 0.513 MB / 1.341 GB, free: 5.977 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0056/1.657, allocations: 2.298 MB / 1.343 GB, free: 4.562 MB / 1.014 GB Notification: Performance of pre-optimization done (n=263): time 6.211e-06/1.657, allocations: 0 / 1.343 GB, free: 4.562 MB / 1.014 GB Notification: Performance of matching and sorting (n=266): time 0.01951/1.676, allocations: 7.787 MB / 1.351 GB, free: 15.96 MB / 1.029 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002058/1.677, allocations: 391.9 kB / 1.351 GB, free: 15.52 MB / 1.029 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003088/1.68, allocations: 1.843 MB / 1.353 GB, free: 14.49 MB / 1.029 GB Notification: Performance of collectPreVariables (initialization): time 0.0008054/1.68, allocations: 80.44 kB / 1.353 GB, free: 14.42 MB / 1.029 GB Notification: Performance of collectInitialEqns (initialization): time 0.001858/1.682, allocations: 1.78 MB / 1.355 GB, free: 12.88 MB / 1.029 GB Notification: Performance of collectInitialBindings (initialization): time 0.001312/1.684, allocations: 0.8719 MB / 1.356 GB, free: 12.13 MB / 1.029 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004456/1.684, allocations: 229.6 kB / 1.356 GB, free: 11.99 MB / 1.029 GB Notification: Performance of setup shared object (initialization): time 0.0001052/1.684, allocations: 309.2 kB / 1.356 GB, free: 11.68 MB / 1.029 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00453/1.689, allocations: 1.725 MB / 1.358 GB, free: 10.8 MB / 1.029 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005191/1.694, allocations: 2.436 MB / 1.36 GB, free: 9.047 MB / 1.029 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01009/1.704, allocations: 4.14 MB / 1.364 GB, free: 6.496 MB / 1.029 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.447e-05/1.704, allocations: 5.531 kB / 1.364 GB, free: 6.496 MB / 1.029 GB Notification: Performance of matching and sorting (n=375) (initialization): time 0.01285/1.717, allocations: 4.525 MB / 1.369 GB, free: 3.727 MB / 1.029 GB Notification: Performance of prepare postOptimizeDAE: time 0.0005112/1.718, allocations: 0.6242 MB / 1.369 GB, free: 2.855 MB / 1.029 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.18e-05/1.718, allocations: 20 kB / 1.369 GB, free: 2.836 MB / 1.029 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.521e-05/1.718, allocations: 36 kB / 1.369 GB, free: 2.801 MB / 1.029 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005014/1.723, allocations: 0.8777 MB / 1.37 GB, free: 1.965 MB / 1.029 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.055e-05/1.723, allocations: 41.8 kB / 1.37 GB, free: 1.93 MB / 1.029 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004727/1.727, allocations: 458.7 kB / 1.371 GB, free: 1.48 MB / 1.029 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005554/1.728, allocations: 151.9 kB / 1.371 GB, free: 1.332 MB / 1.029 GB Notification: Performance of prepare postOptimizeDAE: time 1.299e-05/1.728, allocations: 4 kB / 1.371 GB, free: 1.328 MB / 1.029 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0108/1.739, allocations: 4.078 MB / 1.375 GB, free: 13.33 MB / 1.045 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.058e-05/1.739, allocations: 16 kB / 1.375 GB, free: 13.31 MB / 1.045 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.418e-05/1.739, allocations: 32.09 kB / 1.375 GB, free: 13.28 MB / 1.045 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00449/1.743, allocations: 0.8398 MB / 1.376 GB, free: 12.48 MB / 1.045 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.785e-05/1.744, allocations: 44.7 kB / 1.376 GB, free: 12.45 MB / 1.045 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004248/1.748, allocations: 409 kB / 1.376 GB, free: 12.05 MB / 1.045 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000436/1.748, allocations: 151.9 kB / 1.376 GB, free: 11.9 MB / 1.045 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 81 * Number of states: 0 () * Number of discrete variables: 29 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,pvOriented.HDirTil.incAng.decAng.tNext,$PRE.pvOriented.HDirTil.incAng.decAng.tNext,pvOriented.HDifTil.incAng.decAng.tNext,$PRE.pvOriented.HDifTil.incAng.decAng.tNext,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,HDifTil.incAng.decAng.tNext,$PRE.HDifTil.incAng.decAng.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition9) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (375): * Single equations (assignments): 375 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.003622/1.752, allocations: 1.32 MB / 1.377 GB, free: 10.61 MB / 1.045 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008359/1.753, allocations: 249 kB / 1.378 GB, free: 10.37 MB / 1.045 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01199/1.765, allocations: 4.52 MB / 1.382 GB, free: 5.793 MB / 1.045 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.816e-05/1.765, allocations: 28 kB / 1.382 GB, free: 5.766 MB / 1.045 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.442e-05/1.765, allocations: 0 / 1.382 GB, free: 5.766 MB / 1.045 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.843e-05/1.765, allocations: 19.94 kB / 1.382 GB, free: 5.746 MB / 1.045 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0188/1.784, allocations: 9.292 MB / 1.391 GB, free: 12.37 MB / 1.061 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.283e-05/1.784, allocations: 3.984 kB / 1.391 GB, free: 12.36 MB / 1.061 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004124/1.788, allocations: 0.7632 MB / 1.392 GB, free: 11.62 MB / 1.061 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.748e-05/1.788, allocations: 12 kB / 1.392 GB, free: 11.61 MB / 1.061 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003056/1.788, allocations: 83.92 kB / 1.392 GB, free: 11.53 MB / 1.061 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.717e-05/1.788, allocations: 14.91 kB / 1.392 GB, free: 11.52 MB / 1.061 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.484e-06/1.788, allocations: 0 / 1.392 GB, free: 11.52 MB / 1.061 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01002/1.798, allocations: 4.317 MB / 1.396 GB, free: 7.105 MB / 1.061 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001852/1.8, allocations: 0.8208 MB / 1.397 GB, free: 6.262 MB / 1.061 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005263/1.801, allocations: 60 kB / 1.397 GB, free: 6.203 MB / 1.061 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003382/1.804, allocations: 340.1 kB / 1.398 GB, free: 5.871 MB / 1.061 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000403/1.804, allocations: 188.4 kB / 1.398 GB, free: 5.691 MB / 1.061 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002445/1.805, allocations: 103.9 kB / 1.398 GB, free: 5.59 MB / 1.061 GB Notification: Performance of sorting global known variables: time 0.002263/1.807, allocations: 1.345 MB / 1.399 GB, free: 4.227 MB / 1.061 GB Notification: Performance of sort global known variables: time 3e-07/1.807, allocations: 0 / 1.399 GB, free: 4.227 MB / 1.061 GB Notification: Performance of remove unused functions: time 0.00528/1.812, allocations: 1.461 MB / 1.401 GB, free: 2.766 MB / 1.061 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 10 * Number of states: 0 () * Number of discrete variables: 18 ($whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,HDifTil.incAng.decAng.tNext,HDirTil.incAng.decAng.tNext,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,pvOriented.HDifTil.incAng.decAng.tNext,pvOriented.HDirTil.incAng.decAng.tNext) * Number of discrete states: 9 (weaDat.conTimMin.tNext,pvOriented.HDirTil.incAng.decAng.tNext,pvOriented.HDifTil.incAng.decAng.tNext,weaDat.decAng.tNext,weaDat.eqnTim.tNext,weaDat.conTim.tNext,weaDat.locTim.tNext,HDirTil.incAng.decAng.tNext,HDifTil.incAng.decAng.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (290): * Single equations (assignments): 281 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 9 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001761/1.814, allocations: 0.6783 MB / 1.401 GB, free: 2.309 MB / 1.061 GB Notification: Performance of simCode: created initialization part: time 0.01641/1.831, allocations: 6.281 MB / 1.407 GB, free: 12.15 MB / 1.076 GB Notification: Performance of simCode: created event and clocks part: time 1.197e-05/1.831, allocations: 8.25 kB / 1.407 GB, free: 12.14 MB / 1.076 GB Notification: Performance of simCode: created simulation system equations: time 0.005004/1.836, allocations: 2.041 MB / 1.409 GB, free: 10.16 MB / 1.076 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004606/1.84, allocations: 0.6249 MB / 1.41 GB, free: 9.543 MB / 1.076 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01702/1.857, allocations: 9.835 MB / 1.42 GB, free: 15.65 MB / 1.092 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002517/1.86, allocations: 2.601 MB / 1.422 GB, free: 13.02 MB / 1.092 GB Notification: Performance of simCode: alias equations: time 0.006225/1.866, allocations: 1.313 MB / 1.423 GB, free: 11.7 MB / 1.092 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001283/1.867, allocations: 298.1 kB / 1.424 GB, free: 11.41 MB / 1.092 GB Notification: Performance of SimCode: time 9.92e-07/1.867, allocations: 0 / 1.424 GB, free: 11.41 MB / 1.092 GB Notification: Performance of Templates: time 0.08326/1.951, allocations: 44.53 MB / 1.467 GB, free: 15.36 MB / 1.139 GB make -j1 -f Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N.makefile (rm -f Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N.pipe ; mkfifo Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N.pipe >> ../files/Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N.sim & ./Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N.pipe 2>&1)