Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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.Examples.Performance.Example1v2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2") translateModel(Buildings.Fluid.Examples.Performance.Example1v2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001464/0.001464, allocations: 106.4 kB / 15.99 MB, free: 6.348 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001389/0.00139, allocations: 199.8 kB / 16.91 MB, free: 6.188 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.383/1.383, allocations: 205.1 MB / 222.8 MB, free: 4.727 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.707/1.707, allocations: 292.3 MB / 0.5492 GB, free: 13.63 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.00155/0.00155, allocations: 64.47 kB / 0.6716 GB, free: 26.28 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2294/0.231, allocations: 114.6 MB / 0.7835 GB, free: 13.93 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.Example1v2): time 0.06966/0.3007, allocations: 80.2 MB / 0.8618 GB, free: 13.45 MB / 0.6856 GB Notification: Performance of NFInst.instExpressions: time 0.03135/0.3321, allocations: 22.24 MB / 0.8835 GB, free: 7.156 MB / 0.7012 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004786/0.3369, allocations: 103.2 kB / 0.8836 GB, free: 7.055 MB / 0.7012 GB Notification: Performance of NFTyping.typeComponents: time 0.004011/0.341, allocations: 1.015 MB / 0.8846 GB, free: 6.035 MB / 0.7012 GB Notification: Performance of NFTyping.typeBindings: time 0.008347/0.3494, allocations: 2.561 MB / 0.8871 GB, free: 3.469 MB / 0.7012 GB Notification: Performance of NFTyping.typeClassSections: time 0.006441/0.3558, allocations: 2.18 MB / 0.8893 GB, free: 1.305 MB / 0.7012 GB Notification: Performance of NFFlatten.flatten: time 0.02603/0.3819, allocations: 26.85 MB / 0.9155 GB, free: 6.371 MB / 0.7325 GB Notification: Performance of NFFlatten.resolveConnections: time 0.4996/0.8815, allocations: 16.96 MB / 0.9321 GB, free: 21.37 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.02683/0.9084, allocations: 11.35 MB / 0.9431 GB, free: 20.68 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.02253/0.931, allocations: 11.91 MB / 0.9548 GB, free: 19.36 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.00786/0.9389, allocations: 1.274 MB / 0.956 GB, free: 19.36 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01487/0.9538, allocations: 2.58 MB / 0.9585 GB, free: 19.33 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.008797/0.9626, allocations: 3.629 MB / 0.9621 GB, free: 18.98 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.01666/0.9793, allocations: 6.445 MB / 0.9684 GB, free: 17.57 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.01797/0.9973, allocations: 14.32 MB / 0.9824 GB, free: 13.61 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 8.065e-06/0.9974, allocations: 0 / 0.9824 GB, free: 13.61 MB / 0.7325 GB Notification: Performance of FrontEnd: time 2.043e-06/0.9974, allocations: 0 / 0.9824 GB, free: 13.61 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 0.0006084/0.998, allocations: 2.75 kB / 0.9824 GB, free: 13.61 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1418 * Number of variables: 1418 Notification: Performance of Generate backend data structure: time 0.04219/1.04, allocations: 12.09 MB / 0.9942 GB, free: 7.621 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 4.404e-05/1.04, allocations: 7 kB / 0.9942 GB, free: 7.621 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01023/1.051, allocations: 1.256 MB / 0.9954 GB, free: 7.016 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.02313/1.074, allocations: 9.853 MB / 1.005 GB, free: 3.59 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004846/1.074, allocations: 438.6 kB / 1.005 GB, free: 3.578 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.004538/1.079, allocations: 0.5838 MB / 1.006 GB, free: 3.566 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.03777/1.117, allocations: 14.62 MB / 1.02 GB, free: 10.89 MB / 0.7481 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.000247/1.117, allocations: 21.8 kB / 1.02 GB, free: 10.88 MB / 0.7481 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004296/1.121, allocations: 240 kB / 1.021 GB, free: 10.64 MB / 0.7481 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001133/1.121, allocations: 139.9 kB / 1.021 GB, free: 10.51 MB / 0.7481 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03818/1.159, allocations: 19.77 MB / 1.04 GB, free: 6.785 MB / 0.7637 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 0.1128/1.272, allocations: 59.88 MB / 1.098 GB, free: 10.2 MB / 0.8262 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01532/1.288, allocations: 9.179 MB / 1.107 GB, free: 1.016 MB / 0.8262 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.01327/1.301, allocations: 8.589 MB / 1.116 GB, free: 8.43 MB / 0.8419 GB Notification: Performance of preOpt evalFunc (simulation): time 0.05556/1.357, allocations: 27.36 MB / 1.143 GB, free: 12.79 MB / 0.8731 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01363/1.37, allocations: 7.646 MB / 1.15 GB, free: 5.102 MB / 0.8731 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.02232/1.393, allocations: 6.868 MB / 1.157 GB, free: 14.38 MB / 0.8887 GB Notification: Performance of pre-optimization done (n=300): time 2.865e-05/1.393, allocations: 0 / 1.157 GB, free: 14.38 MB / 0.8887 GB Notification: Performance of matching and sorting (n=300): time 0.05779/1.45, allocations: 23.52 MB / 1.18 GB, free: 6.777 MB / 0.9044 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.458e-05/1.451, allocations: 85.75 kB / 1.18 GB, free: 6.68 MB / 0.9044 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01416/1.465, allocations: 7.896 MB / 1.187 GB, free: 14.8 MB / 0.92 GB Notification: Performance of collectPreVariables (initialization): time 0.002787/1.468, allocations: 97.7 kB / 1.188 GB, free: 14.7 MB / 0.92 GB Notification: Performance of collectInitialEqns (initialization): time 0.005176/1.473, allocations: 4.003 MB / 1.191 GB, free: 10.69 MB / 0.92 GB Notification: Performance of collectInitialBindings (initialization): time 0.003881/1.477, allocations: 1.082 MB / 1.193 GB, free: 9.613 MB / 0.92 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.005753/1.482, allocations: 1.666 MB / 1.194 GB, free: 7.934 MB / 0.92 GB Notification: Performance of setup shared object (initialization): time 9.988e-05/1.483, allocations: 301.1 kB / 1.194 GB, free: 7.637 MB / 0.92 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01018/1.493, allocations: 6.557 MB / 1.201 GB, free: 1.059 MB / 0.92 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01286/1.506, allocations: 8.325 MB / 1.209 GB, free: 7.922 MB / 0.9356 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.02465/1.53, allocations: 15.25 MB / 1.224 GB, free: 8.16 MB / 0.9512 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.389e-05/1.53, allocations: 14.34 kB / 1.224 GB, free: 8.148 MB / 0.9512 GB Notification: Performance of matching and sorting (n=579) (initialization): time 0.0414/1.572, allocations: 17.57 MB / 1.241 GB, free: 6.848 MB / 0.9669 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001076/1.572, allocations: 53.95 kB / 1.241 GB, free: 6.789 MB / 0.9669 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.834e-05/1.572, allocations: 48 kB / 1.241 GB, free: 6.742 MB / 0.9669 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.06824/1.64, allocations: 11.59 MB / 1.252 GB, free: 11.23 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.009239/1.65, allocations: 1.55 MB / 1.254 GB, free: 9.75 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005861/1.656, allocations: 3.783 MB / 1.258 GB, free: 5.922 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01113/1.667, allocations: 0.5151 MB / 1.258 GB, free: 5.406 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003087/1.67, allocations: 0.5538 MB / 1.259 GB, free: 4.852 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.01772/1.688, allocations: 8.787 MB / 1.267 GB, free: 12.05 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.01277/1.7, allocations: 8.278 MB / 1.275 GB, free: 2.945 MB / 0.9981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.02476/1.725, allocations: 15.16 MB / 1.29 GB, free: 3.281 MB / 1.014 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.694e-05/1.725, allocations: 15.94 kB / 1.29 GB, free: 3.266 MB / 1.014 GB Notification: Performance of matching and sorting (n=579) (initialization_lambda0): time 0.4788/2.204, allocations: 17.03 MB / 1.307 GB, free: 379.7 MB / 1.014 GB Notification: Performance of prepare postOptimizeDAE: time 6.359e-05/2.204, allocations: 50.59 kB / 1.307 GB, free: 379.6 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.125e-05/2.204, allocations: 50.33 kB / 1.307 GB, free: 379.6 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.06813/2.272, allocations: 11.13 MB / 1.318 GB, free: 378.9 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.008726/2.281, allocations: 1.543 MB / 1.319 GB, free: 378.8 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009824/2.291, allocations: 8.166 MB / 1.327 GB, free: 373.6 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01096/2.302, allocations: 0.5148 MB / 1.328 GB, free: 373.5 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003028/2.305, allocations: 0.5381 MB / 1.328 GB, free: 373.4 MB / 1.014 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 217 * Number of states: 0 () * Number of discrete variables: 8 (pulse.count,$PRE.pulse.count,pulse.T_start,$PRE.pulse.T_start,$whenCondition1,from_dp.y,nRes.y,allowFlowReversal.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (525): * Single equations (assignments): 520 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * 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): 3 systems {(2,5), (20,21), (2,5)} Notification: Performance of prepare postOptimizeDAE: time 0.004446/2.31, allocations: 496.6 kB / 1.329 GB, free: 373.1 MB / 1.014 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.004485/2.314, allocations: 0.7467 MB / 1.329 GB, free: 373.1 MB / 1.014 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.03095/2.345, allocations: 14.18 MB / 1.343 GB, free: 367.4 MB / 1.014 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.189e-05/2.345, allocations: 35.92 kB / 1.343 GB, free: 367.4 MB / 1.014 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.656e-06/2.345, allocations: 3.969 kB / 1.343 GB, free: 367.4 MB / 1.014 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.01708/2.362, allocations: 10.79 MB / 1.354 GB, free: 362 MB / 1.014 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.04246/2.405, allocations: 24.45 MB / 1.378 GB, free: 343.6 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.6e-05/2.405, allocations: 0 / 1.378 GB, free: 343.6 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.005696/2.411, allocations: 0.7022 MB / 1.378 GB, free: 342.9 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0605/2.471, allocations: 10.76 MB / 1.389 GB, free: 332.2 MB / 1.014 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001547/2.473, allocations: 99.94 kB / 1.389 GB, free: 332.1 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003213/2.476, allocations: 3.116 MB / 1.392 GB, free: 329 MB / 1.014 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.849e-06/2.476, allocations: 1.062 kB / 1.392 GB, free: 329 MB / 1.014 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02667/2.503, allocations: 19.26 MB / 1.411 GB, free: 309.7 MB / 1.014 GB Notification: Performance of postOpt removeConstants (simulation): time 0.006138/2.509, allocations: 1.791 MB / 1.413 GB, free: 307.9 MB / 1.014 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.003472/2.512, allocations: 75.92 kB / 1.413 GB, free: 307.8 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00863/2.521, allocations: 382 kB / 1.413 GB, free: 307.5 MB / 1.014 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.002455/2.523, allocations: 214.5 kB / 1.413 GB, free: 307.3 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.001183/2.525, allocations: 159.9 kB / 1.413 GB, free: 307.1 MB / 1.014 GB Notification: Performance of sorting global known variables: time 0.009898/2.535, allocations: 5.433 MB / 1.419 GB, free: 301.7 MB / 1.014 GB Notification: Performance of sort global known variables: time 6.41e-07/2.535, allocations: 3.609 kB / 1.419 GB, free: 301.7 MB / 1.014 GB Notification: Performance of remove unused functions: time 0.02162/2.556, allocations: 4.804 MB / 1.423 GB, free: 297.1 MB / 1.014 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 22 (pump.vol.dynBal.U,hea.outCon.T,vol[1].dynBal.U,vol[2].dynBal.U,vol[3].dynBal.U,vol[4].dynBal.U,vol[5].dynBal.U,vol[6].dynBal.U,vol[7].dynBal.U,vol[8].dynBal.U,vol[9].dynBal.U,vol[10].dynBal.U,vol[11].dynBal.U,vol[12].dynBal.U,vol[13].dynBal.U,vol[14].dynBal.U,vol[15].dynBal.U,vol[16].dynBal.U,vol[17].dynBal.U,vol[18].dynBal.U,vol[19].dynBal.U,vol[20].dynBal.U) * Number of discrete variables: 3 ($whenCondition1,pulse.T_start,pulse.count) * Number of discrete states: 1 (pulse.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (302): * Single equations (assignments): 293 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * 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): 3 systems {(3,4), (2,5), (20,21)} Notification: Performance of Backend phase and start with SimCode phase: time 0.003004/2.559, allocations: 0.5764 MB / 1.424 GB, free: 296.6 MB / 1.014 GB Notification: Performance of simCode: created initialization part: time 0.04694/2.606, allocations: 29.2 MB / 1.453 GB, free: 267.4 MB / 1.014 GB Notification: Performance of simCode: created event and clocks part: time 1.046e-05/2.606, allocations: 0 / 1.453 GB, free: 267.4 MB / 1.014 GB Notification: Performance of simCode: created simulation system equations: time 0.009255/2.616, allocations: 6.329 MB / 1.459 GB, free: 261 MB / 1.014 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.02611/2.642, allocations: 4.933 MB / 1.464 GB, free: 256.3 MB / 1.014 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.03381/2.676, allocations: 23.48 MB / 1.486 GB, free: 232.9 MB / 1.014 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004146/2.68, allocations: 5.185 MB / 1.492 GB, free: 227.6 MB / 1.014 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.005938/2.686, allocations: 0.9359 MB / 1.492 GB, free: 226.7 MB / 1.014 GB Notification: Performance of SimCode: time 1.233e-06/2.686, allocations: 0 / 1.492 GB, free: 226.7 MB / 1.014 GB Notification: Performance of Templates: time 0.736/3.422, allocations: 304.3 MB / 1.79 GB, free: 331.5 MB / 1.014 GB make -j1 -f Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2.makefile (rm -f Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2.pipe ; mkfifo Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2.pipe >> ../files/Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2.sim & ./Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.Examples.Performance.Example1v2.pipe 2>&1)