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: "" <> buildModelFMU(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised,fileNamePrefix="IDEAS_IDEAS_Fluid_Examples_Performance_PressureDrop_ParallelFlowOptimised",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised,fileNamePrefix="IDEAS_IDEAS_Fluid_Examples_Performance_PressureDrop_ParallelFlowOptimised",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 0.0007505/0.0007505, allocations: 90.75 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.004208/0.004208, allocations: 172 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.236/1.236, allocations: 223.3 MB / 240.3 MB, free: 5.34 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7699/0.7699, allocations: 132.3 MB / 423.8 MB, free: 1.949 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0004846/0.0004847, allocations: 8 kB / 0.5041 GB, free: 3.801 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3911/0.3916, allocations: 81.56 MB / 0.5837 GB, free: 3.871 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised): time 0.1565/0.5482, allocations: 157.3 MB / 0.7374 GB, free: 2.434 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.002675/0.5509, allocations: 1.757 MB / 0.7391 GB, free: 0.6758 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001906/0.5511, allocations: 7.938 kB / 0.7391 GB, free: 0.668 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.000439/0.5516, allocations: 131.2 kB / 0.7392 GB, free: 0.5391 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.001065/0.5527, allocations: 0.4902 MB / 0.7397 GB, free: 48 kB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.0008573/0.5535, allocations: 356.7 kB / 0.74 GB, free: 15.7 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.003079/0.5566, allocations: 3.495 MB / 0.7434 GB, free: 12.2 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002437/0.5591, allocations: 2.226 MB / 0.7456 GB, free: 9.953 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001342/0.5604, allocations: 0.8986 MB / 0.7465 GB, free: 9.051 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0007687/0.5612, allocations: 0.7156 MB / 0.7472 GB, free: 8.332 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 7.692e-05/0.5613, allocations: 32 kB / 0.7472 GB, free: 8.301 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001251/0.5625, allocations: 0.799 MB / 0.748 GB, free: 7.5 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0002608/0.5628, allocations: 278.9 kB / 0.7483 GB, free: 7.227 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.0005193/0.5633, allocations: 0.534 MB / 0.7488 GB, free: 6.684 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.001371/0.5647, allocations: 1.378 MB / 0.7501 GB, free: 5.301 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 2.976e-06/0.5647, allocations: 4 kB / 0.7501 GB, free: 5.297 MB / 0.5762 GB Notification: Performance of FrontEnd: time 1.232e-06/0.5647, allocations: 0 / 0.7501 GB, free: 5.297 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 1.016e-05/0.5648, allocations: 0 / 0.7501 GB, free: 5.297 MB / 0.5762 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 0.001934/0.5667, allocations: 1.288 MB / 0.7514 GB, free: 3.949 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 3.987e-05/0.5667, allocations: 12.03 kB / 0.7514 GB, free: 3.938 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000103/0.5669, allocations: 98.45 kB / 0.7515 GB, free: 3.832 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007196/0.5676, allocations: 190.4 kB / 0.7517 GB, free: 3.645 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001085/0.5687, allocations: 0.8138 MB / 0.7525 GB, free: 2.773 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.893e-05/0.5687, allocations: 45 kB / 0.7525 GB, free: 2.73 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.99e-05/0.5688, allocations: 60 kB / 0.7526 GB, free: 2.672 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001184/0.57, allocations: 0.8278 MB / 0.7534 GB, free: 1.773 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.768e-05/0.57, allocations: 3.938 kB / 0.7534 GB, free: 1.77 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.345e-05/0.5701, allocations: 24 kB / 0.7534 GB, free: 1.746 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.414e-05/0.5701, allocations: 12 kB / 0.7534 GB, free: 1.734 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009697/0.5711, allocations: 0.5805 MB / 0.754 GB, free: 1.156 MB / 0.5762 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 0.003702/0.5748, allocations: 4.239 MB / 0.7581 GB, free: 12.65 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007557/0.5756, allocations: 458.1 kB / 0.7586 GB, free: 12.2 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000501/0.5761, allocations: 353.8 kB / 0.7589 GB, free: 11.85 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000274/0.5764, allocations: 194.2 kB / 0.7591 GB, free: 11.62 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005071/0.5769, allocations: 319.1 kB / 0.7594 GB, free: 11.29 MB / 0.5919 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0001859/0.5771, allocations: 43.53 kB / 0.7594 GB, free: 11.25 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=33): time 1.894e-06/0.5771, allocations: 0 / 0.7594 GB, free: 11.25 MB / 0.5919 GB Notification: Performance of matching and sorting (n=33): time 0.00499/0.5821, allocations: 1.71 MB / 0.7611 GB, free: 9.508 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.385e-05/0.5822, allocations: 81.11 kB / 0.7612 GB, free: 9.41 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001299/0.5835, allocations: 1.143 MB / 0.7623 GB, free: 8.25 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 4.617e-05/0.5835, allocations: 45.7 kB / 0.7623 GB, free: 8.199 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003823/0.5839, allocations: 484.4 kB / 0.7628 GB, free: 7.723 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 9.243e-05/0.584, allocations: 122.3 kB / 0.7629 GB, free: 7.602 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.508e-05/0.5841, allocations: 41.7 kB / 0.763 GB, free: 7.555 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 9.561e-05/0.5842, allocations: 326 kB / 0.7633 GB, free: 7.23 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004067/0.5846, allocations: 232.9 kB / 0.7635 GB, free: 7.004 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006207/0.5852, allocations: 0.5501 MB / 0.764 GB, free: 6.32 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009414/0.5862, allocations: 0.683 MB / 0.7647 GB, free: 5.559 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.547e-06/0.5862, allocations: 0 / 0.7647 GB, free: 5.559 MB / 0.5919 GB Notification: Performance of matching and sorting (n=56) (initialization): time 0.00222/0.5884, allocations: 1.123 MB / 0.7658 GB, free: 4.418 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001558/0.5886, allocations: 279.3 kB / 0.7661 GB, free: 4.062 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.267e-06/0.5886, allocations: 4 kB / 0.7661 GB, free: 4.059 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001269/0.5899, allocations: 368.5 kB / 0.7664 GB, free: 3.695 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003873/0.5903, allocations: 103.8 kB / 0.7665 GB, free: 3.594 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0009918/0.5913, allocations: 1.038 MB / 0.7675 GB, free: 2.531 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008286/0.5921, allocations: 91.86 kB / 0.7676 GB, free: 2.441 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.772e-05/0.5922, allocations: 20 kB / 0.7676 GB, free: 2.422 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 6.583e-06/0.5922, allocations: 4 kB / 0.7676 GB, free: 2.418 MB / 0.5919 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001411/0.5936, allocations: 0.7911 MB / 0.7684 GB, free: 1.617 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.585e-06/0.5936, allocations: 8.625 kB / 0.7684 GB, free: 1.609 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000546/0.5942, allocations: 237.4 kB / 0.7686 GB, free: 1.375 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003562/0.5946, allocations: 99.86 kB / 0.7687 GB, free: 1.277 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003409/0.598, allocations: 3.033 MB / 0.7717 GB, free: 14.11 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007588/0.5987, allocations: 79.97 kB / 0.7718 GB, free: 14.03 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.128e-05/0.5988, allocations: 20 kB / 0.7718 GB, free: 14.01 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_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 0.0004584/0.5993, allocations: 462.3 kB / 0.7722 GB, free: 13.55 MB / 0.6075 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001146/0.5994, allocations: 106.6 kB / 0.7723 GB, free: 13.45 MB / 0.6075 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001392/0.6008, allocations: 0.7967 MB / 0.7731 GB, free: 12.64 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.34e-06/0.6008, allocations: 8 kB / 0.7731 GB, free: 12.63 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.643e-06/0.6008, allocations: 0 / 0.7731 GB, free: 12.63 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.142e-06/0.6008, allocations: 3.938 kB / 0.7731 GB, free: 12.62 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00241/0.6032, allocations: 1.732 MB / 0.7748 GB, free: 10.81 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.226e-06/0.6032, allocations: 0 / 0.7748 GB, free: 10.81 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002708/0.6035, allocations: 55.94 kB / 0.7749 GB, free: 10.76 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005147/0.6041, allocations: 255.1 kB / 0.7751 GB, free: 10.51 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.744e-05/0.6041, allocations: 11.98 kB / 0.7751 GB, free: 10.5 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008528/0.6049, allocations: 1.005 MB / 0.7761 GB, free: 9.465 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.589e-06/0.605, allocations: 11.91 kB / 0.7761 GB, free: 9.453 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001266/0.6062, allocations: 0.8984 MB / 0.777 GB, free: 8.516 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002811/0.6065, allocations: 227.8 kB / 0.7772 GB, free: 8.273 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001049/0.6066, allocations: 8 kB / 0.7772 GB, free: 8.266 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000632/0.6073, allocations: 59.92 kB / 0.7773 GB, free: 8.207 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.806e-05/0.6074, allocations: 32 kB / 0.7773 GB, free: 8.176 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.418e-05/0.6074, allocations: 15.94 kB / 0.7773 GB, free: 8.16 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.0009687/0.6084, allocations: 0.8158 MB / 0.7781 GB, free: 7.336 MB / 0.6075 GB Notification: Performance of sort global known variables: time 1.3e-07/0.6084, allocations: 0 / 0.7781 GB, free: 7.336 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.001157/0.6096, allocations: 475.4 kB / 0.7786 GB, free: 6.871 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_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 0.001576/0.6111, allocations: 1.43 MB / 0.78 GB, free: 5.402 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.001986/0.6131, allocations: 1.147 MB / 0.7811 GB, free: 4.219 MB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 2.475e-06/0.6131, allocations: 0 / 0.7811 GB, free: 4.219 MB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.0005536/0.6137, allocations: 259.6 kB / 0.7813 GB, free: 3.969 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003447/0.6172, allocations: 0.6279 MB / 0.782 GB, free: 3.352 MB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01589/0.6331, allocations: 9.896 MB / 0.7916 GB, free: 9.008 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006917/0.6338, allocations: 1.181 MB / 0.7928 GB, free: 7.797 MB / 0.6231 GB Notification: Performance of simCode: alias equations: time 0.0009716/0.6348, allocations: 316.4 kB / 0.7931 GB, free: 7.484 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003957/0.6352, allocations: 323.3 kB / 0.7934 GB, free: 7.168 MB / 0.6231 GB Notification: Performance of SimCode: time 7.21e-07/0.6352, allocations: 0 / 0.7934 GB, free: 7.168 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 2.43/3.065, allocations: 30.19 MB / 0.8229 GB, free: 216.5 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001828/3.065, allocations: 292.1 kB / 0.8231 GB, free: 216.1 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.564/5.63, allocations: 0 / 0.8231 GB, free: 216.1 MB / 0.6387 GB (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 & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_IDEAS_Fluid_Examples_Performance_PressureDrop_ParallelFlowOptimised_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IDEAS_IDEAS_Fluid_Examples_Performance_PressureDrop_ParallelFlowOptimised.fmu > IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.pipe 2>&1)