Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.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/IDEAS 3.0.0/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised") translateModel(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001594/0.001594, allocations: 107.8 kB / 16.41 MB, free: 6.516 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001945/0.001945, allocations: 189.7 kB / 17.34 MB, free: 5.738 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.474/1.474, allocations: 222.9 MB / 241 MB, free: 15.09 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7728/0.7728, allocations: 132.2 MB / 423.4 MB, free: 6.535 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001238/0.001238, allocations: 66.55 kB / 0.582 GB, free: 23.67 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1512/0.1525, allocations: 80.21 MB / 0.6604 GB, free: 10.22 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised): time 0.565/0.7175, allocations: 161.6 MB / 0.8182 GB, free: 9.691 MB / 0.5919 GB Notification: Performance of NFInst.instExpressions: time 0.003329/0.7209, allocations: 1.756 MB / 0.8199 GB, free: 8.707 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005919/0.7215, allocations: 14.75 kB / 0.8199 GB, free: 8.699 MB / 0.5919 GB Notification: Performance of NFTyping.typeComponents: time 0.0007243/0.7223, allocations: 166.6 kB / 0.8201 GB, free: 8.59 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.001636/0.724, allocations: 0.5201 MB / 0.8206 GB, free: 8.266 MB / 0.5919 GB Notification: Performance of NFTyping.typeClassSections: time 0.001326/0.7253, allocations: 393.9 kB / 0.8209 GB, free: 8.043 MB / 0.5919 GB Notification: Performance of NFFlatten.flatten: time 0.002904/0.7282, allocations: 2.55 MB / 0.8234 GB, free: 6.625 MB / 0.5919 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003125/0.7314, allocations: 2.405 MB / 0.8258 GB, free: 5.148 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002463/0.7339, allocations: 1.049 MB / 0.8268 GB, free: 4.59 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001467/0.7353, allocations: 0.7175 MB / 0.8275 GB, free: 4.176 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0003096/0.7357, allocations: 60.97 kB / 0.8276 GB, free: 4.176 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002133/0.7378, allocations: 0.7428 MB / 0.8283 GB, free: 3.777 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0005232/0.7384, allocations: 313.1 kB / 0.8286 GB, free: 3.566 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.001203/0.7396, allocations: 0.5453 MB / 0.8291 GB, free: 3.234 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.002569/0.7422, allocations: 1.423 MB / 0.8305 GB, free: 2.391 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 5.17e-06/0.7422, allocations: 0 / 0.8305 GB, free: 2.391 MB / 0.5919 GB Notification: Performance of FrontEnd: time 2.084e-06/0.7422, allocations: 0 / 0.8305 GB, free: 2.391 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 4.81e-05/0.7422, allocations: 0 / 0.8305 GB, free: 2.391 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: 126 * Number of variables: 126 Notification: Performance of Generate backend data structure: time 0.002613/0.7449, allocations: 1.462 MB / 0.8319 GB, free: 1.266 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 4.057e-05/0.7449, allocations: 7.656 kB / 0.8319 GB, free: 1.266 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007591/0.7457, allocations: 180.6 kB / 0.8321 GB, free: 1.184 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001278/0.747, allocations: 0.8629 MB / 0.833 GB, free: 0.5508 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.293e-05/0.747, allocations: 49.67 kB / 0.833 GB, free: 0.5273 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.314e-05/0.7471, allocations: 56.81 kB / 0.8331 GB, free: 0.5117 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001201/0.7483, allocations: 0.8266 MB / 0.8339 GB, free: 15.91 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.763e-05/0.7483, allocations: 3.938 kB / 0.8339 GB, free: 15.91 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.336e-05/0.7484, allocations: 24 kB / 0.8339 GB, free: 15.89 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.242e-05/0.7484, allocations: 16.81 kB / 0.8339 GB, free: 15.89 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008912/0.7493, allocations: 0.5661 MB / 0.8345 GB, free: 15.62 MB / 0.6075 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 0.003888/0.7532, allocations: 4.201 MB / 0.8386 GB, free: 11.84 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007003/0.7539, allocations: 437.2 kB / 0.839 GB, free: 11.62 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004553/0.7544, allocations: 344.1 kB / 0.8393 GB, free: 11.46 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002912/0.7547, allocations: 197.2 kB / 0.8395 GB, free: 11.25 MB / 0.6075 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004998/0.7552, allocations: 319.4 kB / 0.8398 GB, free: 11.04 MB / 0.6075 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0002327/0.7554, allocations: 34.09 kB / 0.8398 GB, free: 11.02 MB / 0.6075 GB Notification: Performance of pre-optimization done (n=33): time 3.076e-06/0.7555, allocations: 0 / 0.8398 GB, free: 11.02 MB / 0.6075 GB Notification: Performance of matching and sorting (n=33): time 0.004659/0.7601, allocations: 1.676 MB / 0.8415 GB, free: 10.08 MB / 0.6075 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.894e-05/0.7602, allocations: 79.92 kB / 0.8416 GB, free: 9.988 MB / 0.6075 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001435/0.7616, allocations: 1.149 MB / 0.8427 GB, free: 9.379 MB / 0.6075 GB Notification: Performance of collectPreVariables (initialization): time 6.173e-05/0.7617, allocations: 38.73 kB / 0.8427 GB, free: 9.34 MB / 0.6075 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004109/0.7621, allocations: 487 kB / 0.8432 GB, free: 8.93 MB / 0.6075 GB Notification: Performance of collectInitialBindings (initialization): time 9.632e-05/0.7622, allocations: 115.8 kB / 0.8433 GB, free: 8.832 MB / 0.6075 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001682/0.7624, allocations: 119.1 kB / 0.8434 GB, free: 8.758 MB / 0.6075 GB Notification: Performance of setup shared object (initialization): time 0.0001244/0.7625, allocations: 329.5 kB / 0.8437 GB, free: 8.438 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003914/0.7629, allocations: 234.6 kB / 0.8439 GB, free: 8.32 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006224/0.7636, allocations: 0.5396 MB / 0.8445 GB, free: 7.812 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009/0.7645, allocations: 0.6695 MB / 0.8451 GB, free: 7.324 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.37e-06/0.7645, allocations: 0 / 0.8451 GB, free: 7.324 MB / 0.6075 GB Notification: Performance of matching and sorting (n=56) (initialization): time 0.002287/0.7668, allocations: 1.108 MB / 0.8462 GB, free: 6.711 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 4.852e-05/0.7668, allocations: 33.11 kB / 0.8462 GB, free: 6.68 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.237e-05/0.7669, allocations: 5.469 kB / 0.8462 GB, free: 6.68 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00125/0.7681, allocations: 382.7 kB / 0.8466 GB, free: 6.367 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003606/0.7685, allocations: 79.88 kB / 0.8467 GB, free: 6.289 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001125/0.7696, allocations: 1.044 MB / 0.8477 GB, free: 5.219 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009737/0.7706, allocations: 55.94 kB / 0.8478 GB, free: 5.164 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.983e-05/0.7707, allocations: 31.92 kB / 0.8478 GB, free: 5.133 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000838/0.7715, allocations: 0.5213 MB / 0.8483 GB, free: 4.609 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0005579/0.7721, allocations: 0.4992 MB / 0.8488 GB, free: 3.973 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008249/0.7729, allocations: 0.5999 MB / 0.8494 GB, free: 3.293 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.526e-06/0.773, allocations: 3.938 kB / 0.8494 GB, free: 3.289 MB / 0.6075 GB Notification: Performance of matching and sorting (n=56) (initialization_lambda0): time 0.001627/0.7746, allocations: 0.9004 MB / 0.8502 GB, free: 2.371 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 3.49e-05/0.7746, allocations: 37.64 kB / 0.8503 GB, free: 2.328 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.454e-06/0.7747, allocations: 4 kB / 0.8503 GB, free: 2.324 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000576/0.7752, allocations: 241.1 kB / 0.8505 GB, free: 2.086 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003365/0.7756, allocations: 83.81 kB / 0.8506 GB, free: 2.004 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003734/0.7793, allocations: 3.273 MB / 0.8538 GB, free: 14.6 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001031/0.7804, allocations: 68.31 kB / 0.8539 GB, free: 14.53 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.554e-05/0.7804, allocations: 24 kB / 0.8539 GB, free: 14.51 MB / 0.6231 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_m_flow.count,$PRE.pulse_m_flow.count,pulse_m_flow.T_start,$PRE.pulse_m_flow.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (35): * Single equations (assignments): 33 * 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 {(1,20)} Notification: Performance of prepare postOptimizeDAE: time 0.0002576/0.7807, allocations: 224.3 kB / 0.8541 GB, free: 14.29 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002498/0.781, allocations: 102.8 kB / 0.8542 GB, free: 14.18 MB / 0.6231 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001461/0.7824, allocations: 0.7772 MB / 0.855 GB, free: 13.4 MB / 0.6231 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.316e-06/0.7825, allocations: 7.938 kB / 0.855 GB, free: 13.39 MB / 0.6231 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.555e-06/0.7825, allocations: 0 / 0.855 GB, free: 13.39 MB / 0.6231 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.839e-06/0.7825, allocations: 3.984 kB / 0.855 GB, free: 13.39 MB / 0.6231 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002815/0.7853, allocations: 1.721 MB / 0.8566 GB, free: 11.59 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.029e-06/0.7853, allocations: 0 / 0.8566 GB, free: 11.59 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000247/0.7856, allocations: 51.88 kB / 0.8567 GB, free: 11.54 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000491/0.7861, allocations: 244.8 kB / 0.8569 GB, free: 11.29 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.819e-05/0.7861, allocations: 8.094 kB / 0.8569 GB, free: 11.29 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008935/0.787, allocations: 1.012 MB / 0.8579 GB, free: 10.25 MB / 0.6231 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.831e-06/0.787, allocations: 4.031 kB / 0.8579 GB, free: 10.25 MB / 0.6231 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001332/0.7884, allocations: 0.8933 MB / 0.8588 GB, free: 9.312 MB / 0.6231 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004326/0.7888, allocations: 223.8 kB / 0.859 GB, free: 9.074 MB / 0.6231 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002081/0.789, allocations: 8 kB / 0.859 GB, free: 9.066 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006688/0.7897, allocations: 47.88 kB / 0.8591 GB, free: 9.02 MB / 0.6231 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000107/0.7898, allocations: 31.91 kB / 0.8591 GB, free: 8.988 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.424e-05/0.7899, allocations: 12 kB / 0.8591 GB, free: 8.977 MB / 0.6231 GB Notification: Performance of sorting global known variables: time 0.001206/0.7911, allocations: 0.8119 MB / 0.8599 GB, free: 8.156 MB / 0.6231 GB Notification: Performance of sort global known variables: time 3.31e-07/0.7911, allocations: 0 / 0.8599 GB, free: 8.156 MB / 0.6231 GB Notification: Performance of remove unused functions: time 0.001455/0.7925, allocations: 467.4 kB / 0.8603 GB, free: 7.699 MB / 0.6231 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_m_flow.T_start,pulse_m_flow.count) * Number of discrete states: 1 (pulse_m_flow.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (13): * Single equations (assignments): 10 * 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 {(1,20)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005213/0.7931, allocations: 172.6 kB / 0.8605 GB, free: 7.531 MB / 0.6231 GB Notification: Performance of simCode: created initialization part: time 0.002197/0.7953, allocations: 1.137 MB / 0.8616 GB, free: 6.359 MB / 0.6231 GB Notification: Performance of simCode: created event and clocks part: time 6.072e-06/0.7953, allocations: 4 kB / 0.8616 GB, free: 6.355 MB / 0.6231 GB Notification: Performance of simCode: created simulation system equations: time 0.0005269/0.7958, allocations: 242.5 kB / 0.8619 GB, free: 6.117 MB / 0.6231 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002245/0.7981, allocations: 0.499 MB / 0.8623 GB, free: 5.641 MB / 0.6231 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003152/0.8013, allocations: 1.821 MB / 0.8641 GB, free: 3.758 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007749/0.802, allocations: 1.181 MB / 0.8653 GB, free: 2.547 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001658/0.8022, allocations: 67.42 kB / 0.8653 GB, free: 2.48 MB / 0.6231 GB Notification: Performance of SimCode: time 8.51e-07/0.8022, allocations: 0 / 0.8653 GB, free: 2.48 MB / 0.6231 GB Notification: Performance of Templates: time 0.0285/0.8307, allocations: 20.93 MB / 0.8858 GB, free: 13.68 MB / 0.6544 GB make -j1 -f IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.makefile (rm -f IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe ; mkfifo IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe >> ../files/IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.sim & ./IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe 2>&1)