Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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(IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised") translateModel(IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009997/0.0009997, allocations: 109.8 kB / 16.41 MB, free: 6.027 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001029/0.001028, allocations: 190.1 kB / 17.34 MB, free: 5.633 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.225/1.225, allocations: 222.9 MB / 241 MB, free: 15.18 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.675/0.675, allocations: 115.3 MB / 406.5 MB, free: 6.188 MB / 318.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001141/0.001141, allocations: 66.09 kB / 0.5577 GB, free: 32.28 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1257/0.1268, allocations: 76.18 MB / 0.6321 GB, free: 4.422 MB / 478.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised): time 0.4558/0.5826, allocations: 161.6 MB / 0.7899 GB, free: 13.49 MB / 0.5919 GB Notification: Performance of NFInst.instExpressions: time 0.003918/0.5866, allocations: 3.632 MB / 0.7934 GB, free: 13.13 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000298/0.5869, allocations: 11.61 kB / 0.7934 GB, free: 13.12 MB / 0.5919 GB Notification: Performance of NFTyping.typeComponents: time 0.0005057/0.5874, allocations: 160 kB / 0.7936 GB, free: 13.07 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.001173/0.5887, allocations: 0.5335 MB / 0.7941 GB, free: 12.93 MB / 0.5919 GB Notification: Performance of NFTyping.typeClassSections: time 0.001009/0.5897, allocations: 435.4 kB / 0.7945 GB, free: 12.89 MB / 0.5919 GB Notification: Performance of NFFlatten.flatten: time 0.002247/0.592, allocations: 2.54 MB / 0.797 GB, free: 12.46 MB / 0.5919 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001021/0.593, allocations: 0.9448 MB / 0.7979 GB, free: 12.31 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001353/0.5944, allocations: 1.037 MB / 0.7989 GB, free: 12.23 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0006881/0.5951, allocations: 0.7076 MB / 0.7996 GB, free: 12.08 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0001014/0.5952, allocations: 55.59 kB / 0.7997 GB, free: 12.08 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001267/0.5964, allocations: 0.7392 MB / 0.8004 GB, free: 12.02 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0002553/0.5967, allocations: 309.5 kB / 0.8007 GB, free: 11.97 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.0005221/0.5972, allocations: 0.5421 MB / 0.8012 GB, free: 11.79 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.001256/0.5985, allocations: 1.405 MB / 0.8026 GB, free: 11.55 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 2.564e-06/0.5985, allocations: 0 / 0.8026 GB, free: 11.55 MB / 0.5919 GB Notification: Performance of FrontEnd: time 8.91e-07/0.5985, allocations: 0 / 0.8026 GB, free: 11.55 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 1.82e-05/0.5985, allocations: 2.094 kB / 0.8026 GB, free: 11.55 MB / 0.5919 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 125 * Number of variables: 125 Notification: Performance of Generate backend data structure: time 0.001829/0.6004, allocations: 1.441 MB / 0.804 GB, free: 10.69 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 3.248e-05/0.6004, allocations: 10.31 kB / 0.804 GB, free: 10.69 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007138/0.6011, allocations: 196.7 kB / 0.8042 GB, free: 10.61 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001075/0.6022, allocations: 0.8505 MB / 0.805 GB, free: 10.09 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.054e-05/0.6023, allocations: 42.75 kB / 0.8051 GB, free: 10.09 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.786e-05/0.6023, allocations: 57.66 kB / 0.8051 GB, free: 10.09 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001027/0.6034, allocations: 0.7952 MB / 0.8059 GB, free: 9.684 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.419e-05/0.6034, allocations: 2.125 kB / 0.8059 GB, free: 9.684 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.832e-05/0.6035, allocations: 21.91 kB / 0.8059 GB, free: 9.684 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.411e-05/0.6035, allocations: 12.91 kB / 0.806 GB, free: 9.684 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007663/0.6042, allocations: 0.5342 MB / 0.8065 GB, free: 9.551 MB / 0.5919 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 0.003421/0.6077, allocations: 4.593 MB / 0.811 GB, free: 5.645 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006044/0.6083, allocations: 410.8 kB / 0.8114 GB, free: 5.543 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000321/0.6086, allocations: 256.5 kB / 0.8116 GB, free: 5.488 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002663/0.6089, allocations: 195 kB / 0.8118 GB, free: 5.289 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004278/0.6093, allocations: 290.8 kB / 0.8121 GB, free: 5.156 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=31): time 1.753e-06/0.6094, allocations: 0 / 0.8121 GB, free: 5.156 MB / 0.5919 GB Notification: Performance of matching and sorting (n=31): time 0.003422/0.6128, allocations: 1.308 MB / 0.8133 GB, free: 4.602 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.598e-05/0.6128, allocations: 87.81 kB / 0.8134 GB, free: 4.5 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001105/0.6139, allocations: 1.116 MB / 0.8145 GB, free: 4.148 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 4.477e-05/0.614, allocations: 34.48 kB / 0.8145 GB, free: 4.117 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003105/0.6143, allocations: 498.6 kB / 0.815 GB, free: 3.898 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 7.419e-05/0.6144, allocations: 103.4 kB / 0.8151 GB, free: 3.824 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001367/0.6145, allocations: 116.9 kB / 0.8152 GB, free: 3.789 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0001009/0.6146, allocations: 325.9 kB / 0.8155 GB, free: 3.477 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003219/0.615, allocations: 209.2 kB / 0.8157 GB, free: 3.422 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005205/0.6155, allocations: 0.5286 MB / 0.8163 GB, free: 2.988 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00074/0.6163, allocations: 0.636 MB / 0.8169 GB, free: 2.645 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.667e-06/0.6163, allocations: 0 / 0.8169 GB, free: 2.645 MB / 0.5919 GB Notification: Performance of matching and sorting (n=54) (initialization): time 0.002009/0.6183, allocations: 1.05 MB / 0.8179 GB, free: 2.16 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 3.645e-05/0.6183, allocations: 35.42 kB / 0.8179 GB, free: 2.129 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.355e-06/0.6183, allocations: 4.875 kB / 0.8179 GB, free: 2.129 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001238/0.6196, allocations: 354.5 kB / 0.8183 GB, free: 1.969 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002074/0.6198, allocations: 64.5 kB / 0.8183 GB, free: 1.949 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0009266/0.6207, allocations: 1.011 MB / 0.8193 GB, free: 1.172 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000646/0.6214, allocations: 77.67 kB / 0.8194 GB, free: 1.125 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.599e-05/0.6215, allocations: 23.91 kB / 0.8194 GB, free: 1.121 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0006551/0.6221, allocations: 0.4983 MB / 0.8199 GB, free: 0.8281 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004965/0.6226, allocations: 492.1 kB / 0.8204 GB, free: 356 kB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006673/0.6233, allocations: 0.5474 MB / 0.8209 GB, free: 15.92 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.397e-06/0.6233, allocations: 2.531 kB / 0.8209 GB, free: 15.92 MB / 0.6075 GB Notification: Performance of matching and sorting (n=54) (initialization_lambda0): time 0.001318/0.6246, allocations: 0.8293 MB / 0.8217 GB, free: 15.46 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 3.068e-05/0.6247, allocations: 45.44 kB / 0.8218 GB, free: 15.42 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.691e-06/0.6247, allocations: 4.562 kB / 0.8218 GB, free: 15.42 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004962/0.6252, allocations: 209.1 kB / 0.822 GB, free: 15.32 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001976/0.6254, allocations: 64.53 kB / 0.822 GB, free: 15.3 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003374/0.6288, allocations: 3.345 MB / 0.8253 GB, free: 12.63 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006347/0.6294, allocations: 70.22 kB / 0.8254 GB, free: 12.59 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.143e-05/0.6295, allocations: 20.03 kB / 0.8254 GB, free: 12.59 MB / 0.6075 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (34): * Single equations (assignments): 32 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,19)} Notification: Performance of prepare postOptimizeDAE: time 0.0001905/0.6297, allocations: 212.3 kB / 0.8256 GB, free: 12.39 MB / 0.6075 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000113/0.6298, allocations: 102.6 kB / 0.8257 GB, free: 12.34 MB / 0.6075 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001178/0.631, allocations: 0.7041 MB / 0.8264 GB, free: 11.94 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.791e-06/0.631, allocations: 6.812 kB / 0.8264 GB, free: 11.93 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.118e-06/0.631, allocations: 6.984 kB / 0.8264 GB, free: 11.93 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.589e-06/0.631, allocations: 0 / 0.8264 GB, free: 11.93 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002003/0.633, allocations: 1.598 MB / 0.8279 GB, free: 10.84 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.793e-06/0.633, allocations: 6.969 kB / 0.828 GB, free: 10.84 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001007/0.6331, allocations: 18.89 kB / 0.828 GB, free: 10.83 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004026/0.6335, allocations: 237.8 kB / 0.8282 GB, free: 10.71 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.124e-05/0.6336, allocations: 9.938 kB / 0.8282 GB, free: 10.71 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007796/0.6344, allocations: 0.969 MB / 0.8292 GB, free: 9.957 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.669e-06/0.6344, allocations: 6.312 kB / 0.8292 GB, free: 9.953 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00105/0.6354, allocations: 0.8246 MB / 0.83 GB, free: 9.422 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002417/0.6357, allocations: 218 kB / 0.8302 GB, free: 9.238 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001012/0.6358, allocations: 14.92 kB / 0.8302 GB, free: 9.227 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003894/0.6362, allocations: 20.23 kB / 0.8302 GB, free: 9.219 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.678e-05/0.6363, allocations: 36.05 kB / 0.8302 GB, free: 9.195 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.058e-05/0.6363, allocations: 10.69 kB / 0.8303 GB, free: 9.195 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.0008508/0.6372, allocations: 0.7925 MB / 0.831 GB, free: 8.758 MB / 0.6075 GB Notification: Performance of sort global known variables: time 1.3e-07/0.6372, allocations: 0 / 0.831 GB, free: 8.758 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.001056/0.6382, allocations: 434.4 kB / 0.8314 GB, free: 8.703 MB / 0.6075 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (12): * Single equations (assignments): 9 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,19)} Notification: Performance of Backend phase and start with SimCode phase: time 0.000354/0.6386, allocations: 180.6 kB / 0.8316 GB, free: 8.578 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.00163/0.6402, allocations: 1.075 MB / 0.8327 GB, free: 7.922 MB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 2.615e-06/0.6402, allocations: 0 / 0.8327 GB, free: 7.922 MB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.0004453/0.6407, allocations: 230.7 kB / 0.8329 GB, free: 7.82 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001734/0.6424, allocations: 458 kB / 0.8333 GB, free: 7.48 MB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002338/0.6448, allocations: 1.744 MB / 0.835 GB, free: 5.68 MB / 0.6075 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000671/0.6455, allocations: 1.181 MB / 0.8362 GB, free: 4.469 MB / 0.6075 GB Notification: Performance of simCode: alias equations: time 0.0006975/0.6462, allocations: 323.8 kB / 0.8365 GB, free: 4.148 MB / 0.6075 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001083/0.6463, allocations: 67.44 kB / 0.8365 GB, free: 4.082 MB / 0.6075 GB Notification: Performance of SimCode: time 4.11e-07/0.6463, allocations: 0 / 0.8365 GB, free: 4.082 MB / 0.6075 GB Notification: Performance of Templates: time 0.03059/0.6769, allocations: 19.78 MB / 0.8559 GB, free: 0.5234 MB / 0.6231 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.makefile (rm -f IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.sim & ./IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.SeriesDpOptimised.pipe 2>&1)