Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Chillers.Examples.Carnot_y.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: "" <> buildModelFMU(IBPSA.Fluid.Chillers.Examples.Carnot_y,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Chillers_Examples_Carnot_y",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Fluid.Chillers.Examples.Carnot_y,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Chillers_Examples_Carnot_y",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 0.001373/0.001373, allocations: 100.1 kB / 15.88 MB, free: 12 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001354/0.001354, allocations: 204.9 kB / 16.79 MB, free: 6.84 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.148/1.148, allocations: 222.9 MB / 240.5 MB, free: 4.641 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6039/0.6039, allocations: 115.3 MB / 406 MB, free: 2.789 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001307/0.001307, allocations: 63.64 kB / 493 MB, free: 6.781 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1201/0.1214, allocations: 76.19 MB / 0.5558 GB, free: 10.8 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Chillers.Examples.Carnot_y): time 0.2505/0.372, allocations: 74.65 MB / 0.6287 GB, free: 5.07 MB / 462.1 MB Notification: Performance of NFInst.instExpressions: time 0.01514/0.3872, allocations: 12.82 MB / 0.6413 GB, free: 11.33 MB / 478.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001638/0.3888, allocations: 60.81 kB / 0.6413 GB, free: 11.31 MB / 478.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001587/0.3904, allocations: 0.675 MB / 0.642 GB, free: 10.73 MB / 478.1 MB Notification: Performance of NFTyping.typeBindings: time 0.007296/0.3978, allocations: 2.268 MB / 0.6442 GB, free: 8.902 MB / 478.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003038/0.4008, allocations: 1.266 MB / 0.6454 GB, free: 7.949 MB / 478.1 MB Notification: Performance of NFFlatten.flatten: time 0.005143/0.406, allocations: 5.551 MB / 0.6509 GB, free: 4.859 MB / 478.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001377/0.4074, allocations: 1.187 MB / 0.652 GB, free: 4.113 MB / 478.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002078/0.4095, allocations: 1.355 MB / 0.6533 GB, free: 3.355 MB / 478.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001196/0.4107, allocations: 1.176 MB / 0.6545 GB, free: 2.234 MB / 478.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001458/0.4108, allocations: 72 kB / 0.6546 GB, free: 2.164 MB / 478.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002399/0.4132, allocations: 1.259 MB / 0.6558 GB, free: 0.9023 MB / 478.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002661/0.4135, allocations: 310.6 kB / 0.6561 GB, free: 0.5977 MB / 478.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0007233/0.4142, allocations: 0.8084 MB / 0.6569 GB, free: 15.78 MB / 494.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002566/0.4168, allocations: 2.781 MB / 0.6596 GB, free: 13 MB / 494.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.547e-06/0.4168, allocations: 0 / 0.6596 GB, free: 13 MB / 494.1 MB Notification: Performance of FrontEnd: time 7.52e-07/0.4168, allocations: 0 / 0.6596 GB, free: 13 MB / 494.1 MB Notification: Performance of Transformations before backend: time 1.219e-05/0.4168, allocations: 4 kB / 0.6596 GB, free: 12.99 MB / 494.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 240 * Number of variables: 240 Notification: Performance of Generate backend data structure: time 0.003163/0.42, allocations: 2.079 MB / 0.6616 GB, free: 10.84 MB / 494.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.71e-05/0.4201, allocations: 12.03 kB / 0.6616 GB, free: 10.83 MB / 494.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.00018/0.4203, allocations: 148.1 kB / 0.6618 GB, free: 10.68 MB / 494.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007381/0.421, allocations: 230.8 kB / 0.662 GB, free: 10.45 MB / 494.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002101/0.4231, allocations: 1.493 MB / 0.6634 GB, free: 8.906 MB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.418e-05/0.4232, allocations: 81.94 kB / 0.6635 GB, free: 8.824 MB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001292/0.4233, allocations: 100 kB / 0.6636 GB, free: 8.727 MB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001718/0.425, allocations: 1.104 MB / 0.6647 GB, free: 7.59 MB / 494.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.009e-05/0.4251, allocations: 4 kB / 0.6647 GB, free: 7.586 MB / 494.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.983e-05/0.4252, allocations: 40 kB / 0.6647 GB, free: 7.547 MB / 494.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.854e-05/0.4252, allocations: 28 kB / 0.6648 GB, free: 7.52 MB / 494.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001663/0.4269, allocations: 0.8861 MB / 0.6656 GB, free: 6.633 MB / 494.1 MB 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 0.00492/0.4318, allocations: 4.904 MB / 0.6704 GB, free: 1.441 MB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001229/0.433, allocations: 0.609 MB / 0.671 GB, free: 0.8242 MB / 494.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006243/0.4337, allocations: 350.3 kB / 0.6714 GB, free: 492 kB / 494.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.000567/0.4342, allocations: 0.8316 MB / 0.6722 GB, free: 15.46 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.739e-05/0.4343, allocations: 43.06 kB / 0.6722 GB, free: 15.41 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=61): time 1.953e-06/0.4343, allocations: 0 / 0.6722 GB, free: 15.41 MB / 0.4981 GB Notification: Performance of matching and sorting (n=61): time 0.006265/0.4405, allocations: 1.681 MB / 0.6738 GB, free: 13.71 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.756e-05/0.4406, allocations: 59.97 kB / 0.6739 GB, free: 13.64 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001315/0.4419, allocations: 1.214 MB / 0.6751 GB, free: 12.41 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 5.774e-05/0.442, allocations: 37.7 kB / 0.6751 GB, free: 12.36 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004393/0.4424, allocations: 0.5987 MB / 0.6757 GB, free: 11.76 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001631/0.4426, allocations: 220.8 kB / 0.6759 GB, free: 11.54 MB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002006/0.4428, allocations: 150.6 kB / 0.6761 GB, free: 11.39 MB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 0.0001131/0.4429, allocations: 334 kB / 0.6764 GB, free: 11.05 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005993/0.4435, allocations: 300.5 kB / 0.6767 GB, free: 10.76 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007483/0.4443, allocations: 487.9 kB / 0.6771 GB, free: 10.21 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001254/0.4456, allocations: 0.7166 MB / 0.6778 GB, free: 9.438 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.388e-06/0.4456, allocations: 4 kB / 0.6778 GB, free: 9.434 MB / 0.4981 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.004086/0.4497, allocations: 1.269 MB / 0.6791 GB, free: 8.152 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 1.734e-05/0.4497, allocations: 8 kB / 0.6791 GB, free: 8.145 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.614e-06/0.4497, allocations: 4 kB / 0.6791 GB, free: 8.141 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005114/0.4502, allocations: 137 kB / 0.6792 GB, free: 8.004 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005501/0.4508, allocations: 163.8 kB / 0.6794 GB, free: 7.844 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007296/0.4515, allocations: 0.6928 MB / 0.6801 GB, free: 7.125 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009544/0.4525, allocations: 159 kB / 0.6802 GB, free: 6.969 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.716e-05/0.4525, allocations: 32 kB / 0.6802 GB, free: 6.938 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0009042/0.4535, allocations: 0.5526 MB / 0.6808 GB, free: 6.379 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007208/0.4542, allocations: 490.1 kB / 0.6812 GB, free: 5.828 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001218/0.4554, allocations: 0.7012 MB / 0.6819 GB, free: 5.078 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.954e-06/0.4554, allocations: 3.938 kB / 0.6819 GB, free: 5.074 MB / 0.4981 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.004091/0.4595, allocations: 1.265 MB / 0.6832 GB, free: 3.797 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 1.232e-05/0.4595, allocations: 8 kB / 0.6832 GB, free: 3.789 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.005e-05/0.4595, allocations: 8 kB / 0.6832 GB, free: 3.781 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004279/0.46, allocations: 133.1 kB / 0.6833 GB, free: 3.648 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005352/0.4605, allocations: 163.7 kB / 0.6835 GB, free: 3.488 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006997/0.4612, allocations: 0.6908 MB / 0.6841 GB, free: 2.773 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009586/0.4622, allocations: 139.4 kB / 0.6843 GB, free: 2.637 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.448e-05/0.4623, allocations: 32 kB / 0.6843 GB, free: 2.605 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * 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 (79): * Single equations (assignments): 78 * Array equations: 0 * Algorithm blocks: 0 * 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 {(1,9)} Notification: Performance of prepare postOptimizeDAE: time 0.0002048/0.4625, allocations: 220.1 kB / 0.6845 GB, free: 2.383 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001956/0.4627, allocations: 146.3 kB / 0.6847 GB, free: 2.238 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004188/0.4669, allocations: 1.264 MB / 0.6859 GB, free: 0.9609 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.041e-05/0.4669, allocations: 4 kB / 0.6859 GB, free: 0.957 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.25e-06/0.4669, allocations: 0 / 0.6859 GB, free: 0.957 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003757/0.4707, allocations: 1.107 MB / 0.687 GB, free: 15.82 MB / 0.5137 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00568/0.4764, allocations: 2.602 MB / 0.6895 GB, free: 13.1 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.172e-06/0.4764, allocations: 7.938 kB / 0.6895 GB, free: 13.09 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000431/0.4768, allocations: 111.9 kB / 0.6896 GB, free: 12.98 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004323/0.4773, allocations: 136.8 kB / 0.6898 GB, free: 12.84 MB / 0.5137 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.332e-05/0.4773, allocations: 23.92 kB / 0.6898 GB, free: 12.82 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004047/0.4814, allocations: 2.326 MB / 0.692 GB, free: 10.35 MB / 0.5137 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.791e-06/0.4814, allocations: 8.062 kB / 0.6921 GB, free: 10.34 MB / 0.5137 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004596/0.486, allocations: 1.695 MB / 0.6937 GB, free: 8.574 MB / 0.5137 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004281/0.4864, allocations: 311.1 kB / 0.694 GB, free: 8.25 MB / 0.5137 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001509/0.4866, allocations: 12 kB / 0.694 GB, free: 8.238 MB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007847/0.4874, allocations: 87.88 kB / 0.6941 GB, free: 8.152 MB / 0.5137 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001042/0.4875, allocations: 60.3 kB / 0.6942 GB, free: 8.094 MB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.417e-05/0.4876, allocations: 31.98 kB / 0.6942 GB, free: 8.062 MB / 0.5137 GB Notification: Performance of sorting global known variables: time 0.001035/0.4886, allocations: 0.8699 MB / 0.695 GB, free: 7.191 MB / 0.5137 GB Notification: Performance of sort global known variables: time 1.3e-07/0.4886, allocations: 0 / 0.695 GB, free: 7.191 MB / 0.5137 GB Notification: Performance of remove unused functions: time 0.001579/0.4902, allocations: 0.7096 MB / 0.6957 GB, free: 6.48 MB / 0.5137 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 2 (chi.con.vol.dynBal.U,chi.eva.vol.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 (56): * Single equations (assignments): 51 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * 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 {(1,9)} Notification: Performance of Backend phase and start with SimCode phase: time 0.005577/0.4958, allocations: 2.573 MB / 0.6982 GB, free: 3.848 MB / 0.5137 GB Notification: Performance of simCode: created initialization part: time 0.002265/0.498, allocations: 1.11 MB / 0.6993 GB, free: 2.738 MB / 0.5137 GB Notification: Performance of simCode: created event and clocks part: time 5.4e-06/0.4981, allocations: 4.188 kB / 0.6993 GB, free: 2.734 MB / 0.5137 GB Notification: Performance of simCode: created simulation system equations: time 0.001323/0.4994, allocations: 0.5679 MB / 0.6999 GB, free: 2.156 MB / 0.5137 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002977/0.5024, allocations: 0.7515 MB / 0.7006 GB, free: 1.418 MB / 0.5137 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02088/0.5233, allocations: 10.83 MB / 0.7112 GB, free: 6.07 MB / 0.5294 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006422/0.5239, allocations: 1.172 MB / 0.7123 GB, free: 4.871 MB / 0.5294 GB Notification: Performance of simCode: alias equations: time 0.001079/0.525, allocations: 303 kB / 0.7126 GB, free: 4.57 MB / 0.5294 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005936/0.5256, allocations: 0.5032 MB / 0.7131 GB, free: 4.066 MB / 0.5294 GB Notification: Performance of SimCode: time 4.81e-07/0.5256, allocations: 0 / 0.7131 GB, free: 4.066 MB / 0.5294 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 2.683/3.209, allocations: 40.31 MB / 0.7525 GB, free: 12.24 MB / 0.5762 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001833/3.209, allocations: 255.8 kB / 0.7527 GB, free: 11.98 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.102/6.311, allocations: 0 / 0.7527 GB, free: 11.98 MB / 0.5762 GB (rm -f IBPSA_latest_IBPSA.Fluid.Chillers.Examples.Carnot_y.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Chillers.Examples.Carnot_y.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Chillers.Examples.Carnot_y.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Chillers.Examples.Carnot_y.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Fluid_Chillers_Examples_Carnot_y_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Fluid_Chillers_Examples_Carnot_y.fmu > IBPSA_latest_IBPSA.Fluid.Chillers.Examples.Carnot_y.pipe 2>&1)