Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater.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 11.0.1-master/package.mo", uses=false)
Using package Buildings with version 11.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-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: "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater,fileNamePrefix="Buildings_latest_Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesWater",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater,fileNamePrefix="Buildings_latest_Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesWater",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.004838/0.004838, allocations: 102 kB / 15.73 MB, free: 6.051 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001283/0.001284, allocations: 191.4 kB / 16.67 MB, free: 5.965 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.212/1.212, allocations: 222.9 MB / 240.4 MB, free: 15.15 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.39/2.39, allocations: 461.9 MB / 0.7348 GB, free: 11.09 MB / 0.6075 GB
Notification: Performance of FrontEnd - loaded program: time 0.001238/0.001238, allocations: 75.83 kB / 1.054 GB, free: 8.199 MB / 0.8262 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.6819/0.6831, allocations: 157.4 MB / 1.207 GB, free: 13.6 MB / 0.9356 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater): time 0.02116/0.7043, allocations: 26.29 MB / 1.233 GB, free: 3.223 MB / 0.9512 GB
Notification: Performance of NFInst.instExpressions: time 0.007938/0.7123, allocations: 7.125 MB / 1.24 GB, free: 12.08 MB / 0.9669 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.000653/0.7129, allocations: 39.75 kB / 1.24 GB, free: 12.04 MB / 0.9669 GB
Notification: Performance of NFTyping.typeComponents: time 0.0007979/0.7138, allocations: 385.5 kB / 1.24 GB, free: 11.66 MB / 0.9669 GB
Notification: Performance of NFTyping.typeBindings: time 0.00208/0.7159, allocations: 1.1 MB / 1.241 GB, free: 10.56 MB / 0.9669 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001855/0.7177, allocations: 0.9663 MB / 1.242 GB, free: 9.602 MB / 0.9669 GB
Notification: Performance of NFFlatten.flatten: time 0.001798/0.7195, allocations: 2.093 MB / 1.244 GB, free: 7.504 MB / 0.9669 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0006073/0.7201, allocations: 0.6121 MB / 1.245 GB, free: 6.879 MB / 0.9669 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001096/0.7212, allocations: 0.7249 MB / 1.246 GB, free: 6.156 MB / 0.9669 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0005105/0.7218, allocations: 0.5405 MB / 1.246 GB, free: 5.613 MB / 0.9669 GB
Notification: Performance of NFPackage.collectConstants: time 6.657e-05/0.7218, allocations: 52 kB / 1.246 GB, free: 5.562 MB / 0.9669 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001087/0.7229, allocations: 0.811 MB / 1.247 GB, free: 4.75 MB / 0.9669 GB
Notification: Performance of NFScalarize.scalarize: time 0.0001457/0.7231, allocations: 167.4 kB / 1.247 GB, free: 4.586 MB / 0.9669 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002961/0.7234, allocations: 386.1 kB / 1.248 GB, free: 4.207 MB / 0.9669 GB
Notification: Performance of NFConvertDAE.convert: time 0.001168/0.7246, allocations: 1.211 MB / 1.249 GB, free: 2.992 MB / 0.9669 GB
Notification: Performance of FrontEnd - DAE generated: time 5.06e-06/0.7246, allocations: 3.938 kB / 1.249 GB, free: 2.988 MB / 0.9669 GB
Notification: Performance of FrontEnd: time 1.112e-06/0.7246, allocations: 3.938 kB / 1.249 GB, free: 2.984 MB / 0.9669 GB
Notification: Performance of Transformations before backend: time 8.245e-06/0.7246, allocations: 0 / 1.249 GB, free: 2.984 MB / 0.9669 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 110
 * Number of variables: 110
Notification: Performance of Generate backend data structure: time 0.00116/0.7258, allocations: 1.059 MB / 1.25 GB, free: 1.875 MB / 0.9669 GB
Notification: Performance of prepare preOptimizeDAE: time 2.939e-05/0.7258, allocations: 12.03 kB / 1.25 GB, free: 1.863 MB / 0.9669 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.336e-05/0.7259, allocations: 86.7 kB / 1.25 GB, free: 1.77 MB / 0.9669 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002444/0.7261, allocations: 84 kB / 1.25 GB, free: 1.688 MB / 0.9669 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009726/0.7271, allocations: 0.7369 MB / 1.251 GB, free: 0.9102 MB / 0.9669 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.556e-05/0.7272, allocations: 36.94 kB / 1.251 GB, free: 0.875 MB / 0.9669 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 6.189e-05/0.7272, allocations: 44 kB / 1.251 GB, free: 0.832 MB / 0.9669 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006291/0.7279, allocations: 0.5001 MB / 1.251 GB, free: 308 kB / 0.9669 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.687e-05/0.7279, allocations: 4 kB / 1.251 GB, free: 304 kB / 0.9669 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.998e-05/0.7279, allocations: 19.98 kB / 1.251 GB, free: 284 kB / 0.9669 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.151e-05/0.728, allocations: 16 kB / 1.251 GB, free: 268 kB / 0.9669 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0004608/0.7284, allocations: 323.7 kB / 1.252 GB, free: 15.95 MB / 0.9825 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 0.002232/0.7307, allocations: 2.744 MB / 1.254 GB, free: 12.96 MB / 0.9825 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0002636/0.7309, allocations: 197.1 kB / 1.254 GB, free: 12.76 MB / 0.9825 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.000123/0.7311, allocations: 104.7 kB / 1.255 GB, free: 12.65 MB / 0.9825 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000253/0.7313, allocations: 348.8 kB / 1.255 GB, free: 12.24 MB / 0.9825 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.38e-05/0.7314, allocations: 42.5 kB / 1.255 GB, free: 12.19 MB / 0.9825 GB
Notification: Performance of pre-optimization done (n=22): time 1.312e-06/0.7314, allocations: 0 / 1.255 GB, free: 12.19 MB / 0.9825 GB
Notification: Performance of matching and sorting (n=22): time 0.0004666/0.7318, allocations: 300.8 kB / 1.255 GB, free: 11.89 MB / 0.9825 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.912e-05/0.7319, allocations: 59.39 kB / 1.255 GB, free: 11.82 MB / 0.9825 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005032/0.7324, allocations: 0.5225 MB / 1.256 GB, free: 11.29 MB / 0.9825 GB
Notification: Performance of collectPreVariables (initialization): time 2.723e-05/0.7324, allocations: 29.7 kB / 1.256 GB, free: 11.25 MB / 0.9825 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0001967/0.7326, allocations: 343.4 kB / 1.256 GB, free: 10.91 MB / 0.9825 GB
Notification: Performance of collectInitialBindings (initialization): time 5.6e-05/0.7327, allocations: 86.83 kB / 1.256 GB, free: 10.82 MB / 0.9825 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 9.176e-05/0.7328, allocations: 81.59 kB / 1.256 GB, free: 10.74 MB / 0.9825 GB
Notification: Performance of setup shared object (initialization): time 0.0001112/0.7329, allocations: 362.8 kB / 1.257 GB, free: 10.38 MB / 0.9825 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001327/0.733, allocations: 88.81 kB / 1.257 GB, free: 10.29 MB / 0.9825 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002037/0.7332, allocations: 237.8 kB / 1.257 GB, free: 9.988 MB / 0.9825 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003434/0.7336, allocations: 340.3 kB / 1.257 GB, free: 9.602 MB / 0.9825 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.445e-06/0.7336, allocations: 0 / 1.257 GB, free: 9.602 MB / 0.9825 GB
Notification: Performance of matching and sorting (n=44) (initialization): time 0.0004855/0.7341, allocations: 392.5 kB / 1.258 GB, free: 9.211 MB / 0.9825 GB
Notification: Performance of prepare postOptimizeDAE: time 1.064e-05/0.7341, allocations: 4.562 kB / 1.258 GB, free: 9.207 MB / 0.9825 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.162e-06/0.7341, allocations: 4 kB / 1.258 GB, free: 9.203 MB / 0.9825 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.4e-05/0.7341, allocations: 12 kB / 1.258 GB, free: 9.191 MB / 0.9825 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002363/0.7344, allocations: 79.84 kB / 1.258 GB, free: 9.113 MB / 0.9825 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.276e-05/0.7344, allocations: 15.97 kB / 1.258 GB, free: 9.098 MB / 0.9825 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002876/0.7347, allocations: 39.53 kB / 1.258 GB, free: 9.059 MB / 0.9825 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.91e-05/0.7347, allocations: 31.88 kB / 1.258 GB, free: 9.027 MB / 0.9825 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002541/0.735, allocations: 248 kB / 1.258 GB, free: 8.781 MB / 0.9825 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002027/0.7352, allocations: 238.6 kB / 1.258 GB, free: 8.484 MB / 0.9825 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0003197/0.7355, allocations: 327.7 kB / 1.259 GB, free: 8.109 MB / 0.9825 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.623e-06/0.7355, allocations: 4 kB / 1.259 GB, free: 8.105 MB / 0.9825 GB
Notification: Performance of matching and sorting (n=44) (initialization_lambda0): time 0.0004712/0.736, allocations: 389 kB / 1.259 GB, free: 7.719 MB / 0.9825 GB
Notification: Performance of prepare postOptimizeDAE: time 6.512e-06/0.736, allocations: 4 kB / 1.259 GB, free: 7.715 MB / 0.9825 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.12e-06/0.736, allocations: 4 kB / 1.259 GB, free: 7.711 MB / 0.9825 GB
Notification: Performance of postOpt tearingSystem (initialization): time 6.352e-06/0.736, allocations: 11.94 kB / 1.259 GB, free: 7.699 MB / 0.9825 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000225/0.7363, allocations: 79.84 kB / 1.259 GB, free: 7.621 MB / 0.9825 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.454e-06/0.7363, allocations: 11.94 kB / 1.259 GB, free: 7.609 MB / 0.9825 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002761/0.7366, allocations: 23.83 kB / 1.259 GB, free: 7.586 MB / 0.9825 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.206e-05/0.7366, allocations: 23.94 kB / 1.259 GB, free: 7.562 MB / 0.9825 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 19
 * 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 (44):
 * Single equations (assignments): 44
 * 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 9.856e-05/0.7367, allocations: 212.2 kB / 1.259 GB, free: 7.348 MB / 0.9825 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 9.281e-05/0.7368, allocations: 59.25 kB / 1.259 GB, free: 7.289 MB / 0.9825 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0003993/0.7372, allocations: 281 kB / 1.26 GB, free: 7.008 MB / 0.9825 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.46e-06/0.7372, allocations: 4 kB / 1.26 GB, free: 7.004 MB / 0.9825 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 3.256e-06/0.7372, allocations: 0 / 1.26 GB, free: 7.004 MB / 0.9825 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0002994/0.7375, allocations: 377.4 kB / 1.26 GB, free: 6.586 MB / 0.9825 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001178/0.7387, allocations: 1.058 MB / 1.261 GB, free: 5.426 MB / 0.9825 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.524e-06/0.7387, allocations: 0 / 1.261 GB, free: 5.426 MB / 0.9825 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001858/0.7389, allocations: 52.19 kB / 1.261 GB, free: 5.375 MB / 0.9825 GB
Notification: Performance of postOpt tearingSystem (simulation): time 4.088e-06/0.7389, allocations: 8 kB / 1.261 GB, free: 5.367 MB / 0.9825 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.691e-05/0.739, allocations: 8 kB / 1.261 GB, free: 5.359 MB / 0.9825 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.888e-06/0.739, allocations: 4 kB / 1.261 GB, free: 5.355 MB / 0.9825 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.474e-06/0.739, allocations: 4 kB / 1.261 GB, free: 5.352 MB / 0.9825 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005303/0.7395, allocations: 0.5219 MB / 1.262 GB, free: 4.785 MB / 0.9825 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001792/0.7397, allocations: 168.3 kB / 1.262 GB, free: 4.602 MB / 0.9825 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.078e-05/0.7398, allocations: 11.98 kB / 1.262 GB, free: 4.59 MB / 0.9825 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000335/0.7401, allocations: 23.95 kB / 1.262 GB, free: 4.566 MB / 0.9825 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 3.128e-05/0.7401, allocations: 19.86 kB / 1.262 GB, free: 4.547 MB / 0.9825 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.705e-05/0.7402, allocations: 19.98 kB / 1.262 GB, free: 4.527 MB / 0.9825 GB
Notification: Performance of sorting global known variables: time 0.0003798/0.7406, allocations: 407.1 kB / 1.262 GB, free: 4.129 MB / 0.9825 GB
Notification: Performance of sort global known variables: time 1.11e-07/0.7406, allocations: 0 / 1.262 GB, free: 4.129 MB / 0.9825 GB
Notification: Performance of remove unused functions: time 0.0008018/0.7414, allocations: 355.3 kB / 1.263 GB, free: 3.781 MB / 0.9825 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 10
 * Number of states: 2 (vol.dynBal.U,vol1.dynBal.U)
 * 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 (25):
 * Single equations (assignments): 24
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 1
 * When equations: 0
 * 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 0.001118/0.7425, allocations: 1.273 MB / 1.264 GB, free: 2.469 MB / 0.9825 GB
Notification: Performance of simCode: created initialization part: time 0.0005182/0.743, allocations: 409.3 kB / 1.264 GB, free: 2.07 MB / 0.9825 GB
Notification: Performance of simCode: created event and clocks part: time 2.284e-06/0.743, allocations: 0 / 1.264 GB, free: 2.07 MB / 0.9825 GB
Notification: Performance of simCode: created simulation system equations: time 0.0001328/0.7432, allocations: 108.6 kB / 1.264 GB, free: 1.965 MB / 0.9825 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001485/0.7447, allocations: 372.7 kB / 1.265 GB, free: 1.609 MB / 0.9825 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004275/0.749, allocations: 4.404 MB / 1.269 GB, free: 12.96 MB / 0.9981 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000355/0.7493, allocations: 0.8979 MB / 1.27 GB, free: 12.03 MB / 0.9981 GB
Notification: Performance of simCode: alias equations: time 0.0003828/0.7497, allocations: 167.3 kB / 1.27 GB, free: 11.87 MB / 0.9981 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002262/0.7499, allocations: 215.4 kB / 1.27 GB, free: 11.66 MB / 0.9981 GB
Notification: Performance of SimCode: time 2.5e-07/0.7499, allocations: 0 / 1.27 GB, free: 11.66 MB / 0.9981 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 7.323/8.073, allocations: 17.97 MB / 1.288 GB, free: 9.996 MB / 1.014 GB
Notification: Performance of buildModelFMU: Generate platform static: time 12.21/20.28, allocations: 8.797 kB / 1.288 GB, free: 9.992 MB / 1.014 GB
(rm -f Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater.pipe ; mkfifo Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater.pipe >> ../files/Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater_res.mat --tempDir=temp_Buildings_latest_Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesWater_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_latest_Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesWater.fmu > Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesWater.pipe 2>&1)