Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.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.Conversion.Examples.TransformerStepUpYD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD")
translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001184/0.001184, allocations: 111.3 kB / 15.23 MB, free: 0.6367 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001829/0.001829, allocations: 199.8 kB / 16.14 MB, free: 6.793 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.447/1.447, allocations: 222.9 MB / 239.8 MB, free: 4.582 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.912/2.912, allocations: 472.6 MB / 0.7447 GB, free: 4.93 MB / 0.5919 GB
Notification: Performance of FrontEnd - loaded program: time 0.001198/0.001199, allocations: 64.78 kB / 0.9114 GB, free: 33.64 MB / 0.7169 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3065/0.3077, allocations: 159.9 MB / 1.068 GB, free: 10.92 MB / 0.8262 GB
Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD): time 0.01951/0.3272, allocations: 16.29 MB / 1.083 GB, free: 10.57 MB / 0.8419 GB
Notification: Performance of NFInst.instExpressions: time 0.008944/0.3362, allocations: 5.926 MB / 1.089 GB, free: 4.629 MB / 0.8419 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001067/0.3373, allocations: 39.88 kB / 1.089 GB, free: 4.59 MB / 0.8419 GB
Notification: Performance of NFTyping.typeComponents: time 0.003398/0.3407, allocations: 1.268 MB / 1.09 GB, free: 3.32 MB / 0.8419 GB
Notification: Performance of NFTyping.typeBindings: time 0.002446/0.3432, allocations: 0.9694 MB / 1.091 GB, free: 2.348 MB / 0.8419 GB
Notification: Performance of NFTyping.typeClassSections: time 0.002317/0.3455, allocations: 0.9358 MB / 1.092 GB, free: 1.41 MB / 0.8419 GB
Notification: Performance of NFFlatten.flatten: time 0.005863/0.3514, allocations: 6.3 MB / 1.098 GB, free: 11.1 MB / 0.8575 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.00912/0.3605, allocations: 6.081 MB / 1.104 GB, free: 4.945 MB / 0.8575 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003612/0.3642, allocations: 1.527 MB / 1.106 GB, free: 3.414 MB / 0.8575 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.004153/0.3684, allocations: 2.252 MB / 1.108 GB, free: 1.156 MB / 0.8575 GB
Notification: Performance of NFPackage.collectConstants: time 0.00105/0.3694, allocations: 300 kB / 1.108 GB, free: 0.8633 MB / 0.8575 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.003115/0.3726, allocations: 1.147 MB / 1.11 GB, free: 15.71 MB / 0.8731 GB
Notification: Performance of NFScalarize.scalarize: time 0.002544/0.3751, allocations: 1.583 MB / 1.111 GB, free: 14.13 MB / 0.8731 GB
Notification: Performance of NFVerifyModel.verify: time 0.003373/0.3785, allocations: 1.537 MB / 1.113 GB, free: 12.59 MB / 0.8731 GB
Notification: Performance of NFConvertDAE.convert: time 0.00746/0.386, allocations: 6.229 MB / 1.119 GB, free: 6.34 MB / 0.8731 GB
Notification: Performance of FrontEnd - DAE generated: time 7.885e-06/0.386, allocations: 4 kB / 1.119 GB, free: 6.336 MB / 0.8731 GB
Notification: Performance of FrontEnd: time 1.342e-06/0.386, allocations: 0 / 1.119 GB, free: 6.336 MB / 0.8731 GB
Notification: Performance of Transformations before backend: time 0.0001725/0.3862, allocations: 0 / 1.119 GB, free: 6.336 MB / 0.8731 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 769
 * Number of variables: 769
Notification: Performance of Generate backend data structure: time 0.007654/0.3939, allocations: 2.947 MB / 1.122 GB, free: 3.328 MB / 0.8731 GB
Notification: Performance of prepare preOptimizeDAE: time 4.08e-05/0.3939, allocations: 12.03 kB / 1.122 GB, free: 3.316 MB / 0.8731 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01049/0.4044, allocations: 2.003 MB / 1.124 GB, free: 1.309 MB / 0.8731 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.003116/0.4076, allocations: 1.593 MB / 1.125 GB, free: 15.68 MB / 0.8887 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001565/0.4077, allocations: 214.2 kB / 1.125 GB, free: 15.46 MB / 0.8887 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005825/0.4083, allocations: 276.4 kB / 1.126 GB, free: 15.2 MB / 0.8887 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0111/0.4194, allocations: 5.696 MB / 1.131 GB, free: 9.402 MB / 0.8887 GB
Notification: Performance of preOpt findStateOrder (simulation): time 4.793e-05/0.4195, allocations: 3.938 kB / 1.131 GB, free: 9.398 MB / 0.8887 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003446/0.4199, allocations: 116 kB / 1.131 GB, free: 9.285 MB / 0.8887 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003032/0.4202, allocations: 204.7 kB / 1.131 GB, free: 9.082 MB / 0.8887 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01283/0.433, allocations: 5.824 MB / 1.137 GB, free: 3.242 MB / 0.8887 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02474/0.4578, allocations: 22.59 MB / 1.159 GB, free: 10.62 MB / 0.92 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.005688/0.4635, allocations: 3.013 MB / 1.162 GB, free: 7.445 MB / 0.92 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004594/0.4681, allocations: 1.94 MB / 1.164 GB, free: 5.484 MB / 0.92 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000192/0.4684, allocations: 126 kB / 1.164 GB, free: 5.344 MB / 0.92 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.517e-05/0.4684, allocations: 51.56 kB / 1.164 GB, free: 5.285 MB / 0.92 GB
Notification: Performance of pre-optimization done (n=132): time 3.196e-06/0.4684, allocations: 3.938 kB / 1.164 GB, free: 5.281 MB / 0.92 GB
Notification: Performance of matching and sorting (n=174): time 0.04097/0.5094, allocations: 12.83 MB / 1.177 GB, free: 8.414 MB / 0.9356 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001279/0.5096, allocations: 234.9 kB / 1.177 GB, free: 8.137 MB / 0.9356 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001305/0.5109, allocations: 0.9569 MB / 1.178 GB, free: 7.172 MB / 0.9356 GB
Notification: Performance of collectPreVariables (initialization): time 0.0002408/0.5111, allocations: 57.7 kB / 1.178 GB, free: 7.109 MB / 0.9356 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006614/0.5118, allocations: 1.15 MB / 1.179 GB, free: 5.941 MB / 0.9356 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0005639/0.5124, allocations: 0.5931 MB / 1.18 GB, free: 5.34 MB / 0.9356 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0007555/0.5131, allocations: 463.7 kB / 1.18 GB, free: 4.879 MB / 0.9356 GB
Notification: Performance of setup shared object (initialization): time 0.0001177/0.5133, allocations: 334 kB / 1.18 GB, free: 4.547 MB / 0.9356 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004404/0.5177, allocations: 1.875 MB / 1.182 GB, free: 2.66 MB / 0.9356 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.004798/0.5225, allocations: 2.459 MB / 1.185 GB, free: 15.93 MB / 0.9512 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.009279/0.5318, allocations: 4.374 MB / 1.189 GB, free: 11.31 MB / 0.9512 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.012e-05/0.5318, allocations: 8 kB / 1.189 GB, free: 11.3 MB / 0.9512 GB
Notification: Performance of matching and sorting (n=282) (initialization): time 0.01284/0.5447, allocations: 5.423 MB / 1.194 GB, free: 5.859 MB / 0.9512 GB
Notification: Performance of prepare postOptimizeDAE: time 4.054e-05/0.5448, allocations: 12 kB / 1.194 GB, free: 5.848 MB / 0.9512 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.313e-05/0.5448, allocations: 20 kB / 1.194 GB, free: 5.828 MB / 0.9512 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.003374/0.5482, allocations: 1.232 MB / 1.195 GB, free: 4.59 MB / 0.9512 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003146/0.5513, allocations: 0.737 MB / 1.196 GB, free: 3.852 MB / 0.9512 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01504/0.5664, allocations: 10.55 MB / 1.206 GB, free: 9.027 MB / 0.9669 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003292/0.5697, allocations: 455.1 kB / 1.207 GB, free: 8.582 MB / 0.9669 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003525/0.5701, allocations: 111.9 kB / 1.207 GB, free: 8.473 MB / 0.9669 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006317/0.5764, allocations: 2.947 MB / 1.21 GB, free: 5.516 MB / 0.9669 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.004904/0.5814, allocations: 2.456 MB / 1.212 GB, free: 2.805 MB / 0.9669 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.009399/0.5908, allocations: 4.354 MB / 1.216 GB, free: 14.2 MB / 0.9825 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.386e-05/0.5909, allocations: 4 kB / 1.217 GB, free: 14.2 MB / 0.9825 GB
Notification: Performance of matching and sorting (n=282) (initialization_lambda0): time 0.01266/0.6035, allocations: 5.349 MB / 1.222 GB, free: 8.828 MB / 0.9825 GB
Notification: Performance of prepare postOptimizeDAE: time 2.319e-05/0.6036, allocations: 12 kB / 1.222 GB, free: 8.816 MB / 0.9825 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.867e-05/0.6036, allocations: 20.28 kB / 1.222 GB, free: 8.797 MB / 0.9825 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.00282/0.6064, allocations: 1.161 MB / 1.223 GB, free: 7.629 MB / 0.9825 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003085/0.6095, allocations: 0.7332 MB / 1.224 GB, free: 6.895 MB / 0.9825 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01369/0.6232, allocations: 10.36 MB / 1.234 GB, free: 12.26 MB / 0.9981 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003153/0.6264, allocations: 455.1 kB / 1.234 GB, free: 11.81 MB / 0.9981 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000284/0.6267, allocations: 112 kB / 1.234 GB, free: 11.7 MB / 0.9981 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 81
 * 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 (212):
 * Single equations (assignments): 210
 * Array equations: 0
 * Algorithm blocks: 0
 * 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): 2 systems
   {(7,29,63.3%), (6,30,83.3%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 0.000636/0.6274, allocations: 311.6 kB / 1.235 GB, free: 11.39 MB / 0.9981 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004084/0.6278, allocations: 122.6 kB / 1.235 GB, free: 11.27 MB / 0.9981 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01201/0.6398, allocations: 4.972 MB / 1.24 GB, free: 6.254 MB / 0.9981 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.765e-05/0.6398, allocations: 16 kB / 1.24 GB, free: 6.238 MB / 0.9981 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.591e-05/0.6399, allocations: 12 kB / 1.24 GB, free: 6.227 MB / 0.9981 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.014e-05/0.6399, allocations: 11.97 kB / 1.24 GB, free: 6.215 MB / 0.9981 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.5871/1.227, allocations: 8.951 MB / 1.248 GB, free: 166.2 MB / 0.9981 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.724e-05/1.227, allocations: 7.719 kB / 1.248 GB, free: 166.2 MB / 0.9981 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00248/1.23, allocations: 0.523 MB / 1.249 GB, free: 166.2 MB / 0.9981 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.002695/1.232, allocations: 0.9729 MB / 1.25 GB, free: 166.2 MB / 0.9981 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002273/1.232, allocations: 58.45 kB / 1.25 GB, free: 166.2 MB / 0.9981 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01245/1.245, allocations: 9.963 MB / 1.26 GB, free: 163.4 MB / 0.9981 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.685e-06/1.245, allocations: 7.781 kB / 1.26 GB, free: 163.4 MB / 0.9981 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01141/1.256, allocations: 4.762 MB / 1.264 GB, free: 161.5 MB / 0.9981 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0009296/1.257, allocations: 499.5 kB / 1.265 GB, free: 161.3 MB / 0.9981 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002852/1.258, allocations: 43.34 kB / 1.265 GB, free: 161.3 MB / 0.9981 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002526/1.26, allocations: 398 kB / 1.265 GB, free: 161.2 MB / 0.9981 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004515/1.261, allocations: 161.1 kB / 1.265 GB, free: 161.2 MB / 0.9981 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001687/1.261, allocations: 64.11 kB / 1.265 GB, free: 161.2 MB / 0.9981 GB
Notification: Performance of sorting global known variables: time 0.0009962/1.262, allocations: 0.6939 MB / 1.266 GB, free: 160.9 MB / 0.9981 GB
Notification: Performance of sort global known variables: time 1.854e-06/1.262, allocations: 0 / 1.266 GB, free: 160.9 MB / 0.9981 GB
Notification: Performance of remove unused functions: time 0.004237/1.266, allocations: 1.189 MB / 1.267 GB, free: 160.8 MB / 0.9981 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 32
 * 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 (103):
 * Single equations (assignments): 101
 * Array equations: 0
 * Algorithm blocks: 0
 * 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): 2 systems
   {(4,32,100.0%), (6,30,83.3%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.0003006/1.266, allocations: 156 kB / 1.267 GB, free: 160.7 MB / 0.9981 GB
Notification: Performance of simCode: created initialization part: time 0.01896/1.285, allocations: 8.01 MB / 1.275 GB, free: 158 MB / 0.9981 GB
Notification: Performance of simCode: created event and clocks part: time 9.428e-06/1.285, allocations: 1.344 kB / 1.275 GB, free: 158 MB / 0.9981 GB
Notification: Performance of simCode: created simulation system equations: time 0.005926/1.291, allocations: 2.631 MB / 1.278 GB, free: 157 MB / 0.9981 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001557/1.293, allocations: 188.8 kB / 1.278 GB, free: 156.9 MB / 0.9981 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01918/1.312, allocations: 8.574 MB / 1.286 GB, free: 153.2 MB / 0.9981 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002228/1.314, allocations: 2.307 MB / 1.289 GB, free: 152.2 MB / 0.9981 GB
Notification: Performance of simCode: alias equations: time 0.003766/1.318, allocations: 1.223 MB / 1.29 GB, free: 151.9 MB / 0.9981 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000523/1.319, allocations: 121.5 kB / 1.29 GB, free: 151.9 MB / 0.9981 GB
Notification: Performance of SimCode: time 8.22e-07/1.319, allocations: 4 kB / 1.29 GB, free: 151.9 MB / 0.9981 GB
Notification: Performance of Templates: time 0.04652/1.365, allocations: 35.68 MB / 1.325 GB, free: 124.2 MB / 0.9981 GB
make -j1 -f Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.makefile
(rm -f Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe ; mkfifo Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe ; head -c 1048576 < Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe >> ../files/Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.sim & ./Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD  -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe 2>&1)