Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.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.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY") translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001537/0.001537, allocations: 108.3 kB / 16.64 MB, free: 6.371 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001291/0.001291, allocations: 189.3 kB / 17.56 MB, free: 5.797 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.424/1.424, allocations: 222.9 MB / 241.3 MB, free: 15.45 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.8501/0.8501, allocations: 125.4 MB / 416.7 MB, free: 13.82 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002032/0.002032, allocations: 64.03 kB / 0.4943 GB, free: 4.82 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3584/0.3604, allocations: 78.57 MB / 0.571 GB, free: 31.57 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY): time 0.01703/0.3775, allocations: 16.86 MB / 0.5875 GB, free: 19.97 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.008819/0.3863, allocations: 5.967 MB / 0.5933 GB, free: 15.3 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001773/0.3882, allocations: 40.66 kB / 0.5934 GB, free: 15.3 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.003577/0.3917, allocations: 1.385 MB / 0.5947 GB, free: 14.26 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.002979/0.3947, allocations: 0.9801 MB / 0.5957 GB, free: 13.49 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002778/0.3975, allocations: 0.9573 MB / 0.5966 GB, free: 12.77 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.004605/0.4022, allocations: 4.317 MB / 0.6008 GB, free: 9.168 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.008855/0.411, allocations: 7.234 MB / 0.6079 GB, free: 1.914 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002699/0.4138, allocations: 1.944 MB / 0.6098 GB, free: 15.96 MB / 462.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.00435/0.4181, allocations: 2.419 MB / 0.6121 GB, free: 13.54 MB / 462.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001407/0.4196, allocations: 460 kB / 0.6126 GB, free: 13.09 MB / 462.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.003243/0.4228, allocations: 1.139 MB / 0.6137 GB, free: 11.95 MB / 462.1 MB Notification: Performance of NFScalarize.scalarize: time 0.003211/0.4261, allocations: 1.794 MB / 0.6154 GB, free: 10.15 MB / 462.1 MB Notification: Performance of NFVerifyModel.verify: time 0.004222/0.4303, allocations: 1.778 MB / 0.6172 GB, free: 8.363 MB / 462.1 MB Notification: Performance of NFConvertDAE.convert: time 0.007496/0.4378, allocations: 5.768 MB / 0.6228 GB, free: 2.582 MB / 462.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.569e-06/0.4378, allocations: 0 / 0.6228 GB, free: 2.582 MB / 462.1 MB Notification: Performance of FrontEnd: time 1.653e-06/0.4379, allocations: 4 kB / 0.6228 GB, free: 2.578 MB / 462.1 MB Notification: Performance of Transformations before backend: time 0.0002132/0.4381, allocations: 0 / 0.6228 GB, free: 2.578 MB / 462.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 809 * Number of variables: 809 Notification: Performance of Generate backend data structure: time 0.008778/0.4469, allocations: 3.061 MB / 0.6258 GB, free: 15.46 MB / 478.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.682e-05/0.4469, allocations: 8.625 kB / 0.6258 GB, free: 15.45 MB / 478.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01126/0.4582, allocations: 2.014 MB / 0.6278 GB, free: 13.43 MB / 478.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003737/0.462, allocations: 1.647 MB / 0.6294 GB, free: 11.74 MB / 478.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002228/0.4622, allocations: 230.4 kB / 0.6296 GB, free: 11.51 MB / 478.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008055/0.463, allocations: 304.3 kB / 0.6299 GB, free: 11.21 MB / 478.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01414/0.4772, allocations: 5.912 MB / 0.6357 GB, free: 5.211 MB / 478.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 6.31e-05/0.4773, allocations: 7.938 kB / 0.6357 GB, free: 5.203 MB / 478.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000418/0.4777, allocations: 124 kB / 0.6358 GB, free: 5.082 MB / 478.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.00037/0.4781, allocations: 209 kB / 0.636 GB, free: 4.875 MB / 478.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01539/0.4935, allocations: 5.967 MB / 0.6418 GB, free: 14.89 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 0.03233/0.5259, allocations: 22.99 MB / 0.6643 GB, free: 5.895 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.005527/0.5314, allocations: 2.507 MB / 0.6667 GB, free: 3.258 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004986/0.5364, allocations: 1.805 MB / 0.6685 GB, free: 1.438 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002501/0.5367, allocations: 126 kB / 0.6686 GB, free: 1.297 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.976e-05/0.5368, allocations: 51.55 kB / 0.6687 GB, free: 1.238 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=123): time 5.39e-06/0.5368, allocations: 0 / 0.6687 GB, free: 1.238 MB / 0.4981 GB Notification: Performance of matching and sorting (n=153): time 0.03792/0.5747, allocations: 11.79 MB / 0.6802 GB, free: 5.398 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001409/0.5749, allocations: 230.8 kB / 0.6804 GB, free: 5.125 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001524/0.5764, allocations: 1.071 MB / 0.6814 GB, free: 4.039 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.0002631/0.5767, allocations: 49.7 kB / 0.6815 GB, free: 3.984 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009209/0.5776, allocations: 1.254 MB / 0.6827 GB, free: 2.711 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006397/0.5783, allocations: 0.5277 MB / 0.6832 GB, free: 2.176 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0008178/0.5791, allocations: 471.7 kB / 0.6837 GB, free: 1.707 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0001577/0.5793, allocations: 334 kB / 0.684 GB, free: 1.375 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004674/0.5839, allocations: 1.836 MB / 0.6858 GB, free: 15.53 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005215/0.5892, allocations: 2.517 MB / 0.6882 GB, free: 12.7 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009706/0.5989, allocations: 4.352 MB / 0.6925 GB, free: 8.055 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.84e-05/0.599, allocations: 4 kB / 0.6925 GB, free: 8.051 MB / 0.5294 GB Notification: Performance of matching and sorting (n=282) (initialization): time 0.01329/0.6123, allocations: 5.216 MB / 0.6976 GB, free: 2.805 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 4.472e-05/0.6123, allocations: 15.98 kB / 0.6976 GB, free: 2.789 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.595e-05/0.6124, allocations: 24 kB / 0.6976 GB, free: 2.766 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002921/0.6153, allocations: 0.8832 MB / 0.6985 GB, free: 1.863 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003437/0.6188, allocations: 0.7644 MB / 0.6992 GB, free: 1.098 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01617/0.635, allocations: 13.86 MB / 0.7128 GB, free: 2.391 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003287/0.6383, allocations: 459 kB / 0.7132 GB, free: 1.941 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000325/0.6386, allocations: 119.9 kB / 0.7133 GB, free: 1.824 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006437/0.6451, allocations: 2.951 MB / 0.7162 GB, free: 14.86 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005207/0.6503, allocations: 2.498 MB / 0.7186 GB, free: 12.05 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.009852/0.6602, allocations: 4.336 MB / 0.7229 GB, free: 7.414 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.132e-05/0.6603, allocations: 12 kB / 0.7229 GB, free: 7.402 MB / 0.5606 GB Notification: Performance of matching and sorting (n=282) (initialization_lambda0): time 0.01298/0.6732, allocations: 5.146 MB / 0.7279 GB, free: 2.227 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 3.43e-05/0.6733, allocations: 12 kB / 0.7279 GB, free: 2.215 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.885e-05/0.6733, allocations: 24 kB / 0.728 GB, free: 2.191 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002435/0.6758, allocations: 0.8056 MB / 0.7287 GB, free: 1.371 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003423/0.6792, allocations: 0.7643 MB / 0.7295 GB, free: 0.6055 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01532/0.6946, allocations: 13.69 MB / 0.7429 GB, free: 2.078 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003306/0.6979, allocations: 455.1 kB / 0.7433 GB, free: 1.633 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003307/0.6983, allocations: 116 kB / 0.7434 GB, free: 1.52 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 97 * 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 (240): * Single equations (assignments): 234 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 6 systems {(2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.000693/0.699, allocations: 323.5 kB / 0.7437 GB, free: 1.195 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004043/0.6994, allocations: 122.5 kB / 0.7438 GB, free: 1.074 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.3024/1.002, allocations: 4.584 MB / 0.7483 GB, free: 151.7 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.232e-05/1.002, allocations: 16.16 kB / 0.7483 GB, free: 151.7 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.912e-05/1.002, allocations: 13.84 kB / 0.7483 GB, free: 151.7 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.722e-05/1.002, allocations: 14.31 kB / 0.7483 GB, free: 151.7 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01711/1.019, allocations: 8.3 MB / 0.7564 GB, free: 148.9 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.427e-05/1.019, allocations: 6.719 kB / 0.7565 GB, free: 148.9 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00228/1.021, allocations: 0.53 MB / 0.757 GB, free: 148.9 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002075/1.023, allocations: 0.7049 MB / 0.7577 GB, free: 148.7 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001564/1.024, allocations: 52.38 kB / 0.7577 GB, free: 148.7 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01156/1.035, allocations: 13.32 MB / 0.7707 GB, free: 138.2 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.02e-05/1.035, allocations: 11.47 kB / 0.7707 GB, free: 138.2 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009951/1.045, allocations: 4.286 MB / 0.7749 GB, free: 136.5 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008436/1.046, allocations: 484.7 kB / 0.7754 GB, free: 136.2 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002449/1.046, allocations: 35.48 kB / 0.7754 GB, free: 136.2 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002254/1.049, allocations: 395.1 kB / 0.7758 GB, free: 136 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003035/1.049, allocations: 131 kB / 0.7759 GB, free: 135.9 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001243/1.049, allocations: 70.66 kB / 0.776 GB, free: 135.9 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0008656/1.05, allocations: 0.7733 MB / 0.7767 GB, free: 135.5 MB / 0.5762 GB Notification: Performance of sort global known variables: time 1.4e-07/1.05, allocations: 3.75 kB / 0.7767 GB, free: 135.5 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.003596/1.053, allocations: 1.156 MB / 0.7779 GB, free: 135.4 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 32 * 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 simulation (107): * Single equations (assignments): 101 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 6 systems {(2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0002706/1.054, allocations: 157.2 kB / 0.778 GB, free: 135.2 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.01653/1.07, allocations: 8.736 MB / 0.7865 GB, free: 129.4 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 1.368e-05/1.07, allocations: 4 kB / 0.7865 GB, free: 129.4 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.005179/1.075, allocations: 2.743 MB / 0.7892 GB, free: 126.6 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001555/1.077, allocations: 194.9 kB / 0.7894 GB, free: 126.4 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01806/1.095, allocations: 9.124 MB / 0.7983 GB, free: 117.3 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001915/1.097, allocations: 2.388 MB / 0.8007 GB, free: 114.9 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008543/1.098, allocations: 171.3 kB / 0.8008 GB, free: 114.7 MB / 0.5762 GB Notification: Performance of SimCode: time 1.011e-06/1.098, allocations: 0 / 0.8008 GB, free: 114.7 MB / 0.5762 GB Notification: Performance of Templates: time 0.09469/1.193, allocations: 128.5 MB / 0.9263 GB, free: 2.078 MB / 0.5919 GB make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.makefile (rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.sim & ./IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.pipe 2>&1)