Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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(Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall") translateModel(Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001049/0.001049, allocations: 111.3 kB / 15.23 MB, free: 0.6602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001641/0.001641, allocations: 193 kB / 16.13 MB, free: 6.707 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.456/1.456, allocations: 205.1 MB / 222 MB, free: 4.777 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.677/1.677, allocations: 292.2 MB / 0.5484 GB, free: 13.64 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001954/0.001954, allocations: 66.36 kB / 0.6708 GB, free: 26.41 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.248/0.25, allocations: 114.5 MB / 0.7827 GB, free: 14 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall): time 0.00933/0.2594, allocations: 8.007 MB / 0.7905 GB, free: 5.953 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.6946/0.954, allocations: 151.8 MB / 0.9387 GB, free: 4.129 MB / 0.7325 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001908/0.956, allocations: 41.75 kB / 0.9388 GB, free: 4.113 MB / 0.7325 GB Notification: Performance of NFTyping.typeComponents: time 0.003031/0.9591, allocations: 0.9764 MB / 0.9397 GB, free: 3.902 MB / 0.7325 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getHeaderElementTMY3.mo:2:1-105:25:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘ contains a call to impure function ‘Modelica.Utilities.Streams.readLine‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getLongitudeTMY3.mo:2:1-48:21:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLongitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getLatitudeTMY3.mo:2:1-48:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLatitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getTimeZoneTMY3.mo:2:1-47:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getTimeZoneTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. Notification: Performance of NFTyping.typeBindings: time 0.00298/0.9621, allocations: 0.8151 MB / 0.9405 GB, free: 3.715 MB / 0.7325 GB Notification: Performance of NFTyping.typeClassSections: time 0.003952/0.966, allocations: 1.361 MB / 0.9418 GB, free: 3.637 MB / 0.7325 GB Notification: Performance of NFFlatten.flatten: time 0.005568/0.9716, allocations: 4.496 MB / 0.9462 GB, free: 3.145 MB / 0.7325 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002064/0.9737, allocations: 1.724 MB / 0.9479 GB, free: 2.762 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003408/0.9771, allocations: 1.641 MB / 0.9495 GB, free: 2.695 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002758/0.9799, allocations: 1.471 MB / 0.951 GB, free: 2.676 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.0005837/0.9805, allocations: 167.8 kB / 0.9511 GB, free: 2.676 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002504/0.983, allocations: 0.8623 MB / 0.952 GB, free: 2.652 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.001004/0.984, allocations: 0.7193 MB / 0.9527 GB, free: 2.641 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.002376/0.9864, allocations: 1.42 MB / 0.954 GB, free: 2.191 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.006358/0.9927, allocations: 4.861 MB / 0.9588 GB, free: 1.594 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 7.294e-06/0.9928, allocations: 5.125 kB / 0.9588 GB, free: 1.59 MB / 0.7325 GB Notification: Performance of FrontEnd: time 1.583e-06/0.9928, allocations: 0 / 0.9588 GB, free: 1.59 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 0.0001453/0.9929, allocations: 0 / 0.9588 GB, free: 1.59 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 470 * Number of variables: 470 Notification: Performance of Generate backend data structure: time 0.01154/1.004, allocations: 3.854 MB / 0.9626 GB, free: 8 kB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 4.756e-05/1.005, allocations: 9.562 kB / 0.9626 GB, free: 8 kB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008322/1.013, allocations: 1.473 MB / 0.964 GB, free: 15.81 MB / 0.7481 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006259/1.019, allocations: 2.514 MB / 0.9665 GB, free: 15.18 MB / 0.7481 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002335/1.019, allocations: 177.3 kB / 0.9666 GB, free: 15.14 MB / 0.7481 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005524/1.02, allocations: 203 kB / 0.9668 GB, free: 15.14 MB / 0.7481 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.008118/1.028, allocations: 3.082 MB / 0.9698 GB, free: 14.9 MB / 0.7481 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.898e-05/1.028, allocations: 3.094 kB / 0.9698 GB, free: 14.9 MB / 0.7481 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002494/1.028, allocations: 79.19 kB / 0.9699 GB, free: 14.9 MB / 0.7481 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.033e-05/1.029, allocations: 44.31 kB / 0.97 GB, free: 14.9 MB / 0.7481 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008888/1.037, allocations: 3.701 MB / 0.9736 GB, free: 14.11 MB / 0.7481 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 0.02391/1.061, allocations: 9.481 MB / 0.9828 GB, free: 9.523 MB / 0.7481 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007833/1.069, allocations: 2.69 MB / 0.9855 GB, free: 8.746 MB / 0.7481 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.003203/1.072, allocations: 1.268 MB / 0.9867 GB, free: 8.086 MB / 0.7481 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000845/1.073, allocations: 0.4895 MB / 0.9872 GB, free: 7.57 MB / 0.7481 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.003528/1.077, allocations: 1.416 MB / 0.9886 GB, free: 6.727 MB / 0.7481 GB Notification: Performance of pre-optimization done (n=150): time 6.402e-06/1.077, allocations: 0 / 0.9886 GB, free: 6.727 MB / 0.7481 GB Notification: Performance of matching and sorting (n=150): time 0.01316/1.09, allocations: 4.331 MB / 0.9928 GB, free: 4.285 MB / 0.7481 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001873/1.09, allocations: 196.3 kB / 0.993 GB, free: 4.066 MB / 0.7481 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01036/1.101, allocations: 3.072 MB / 0.996 GB, free: 2.473 MB / 0.7481 GB Notification: Performance of collectPreVariables (initialization): time 0.0008629/1.102, allocations: 61.23 kB / 0.996 GB, free: 2.414 MB / 0.7481 GB Notification: Performance of collectInitialEqns (initialization): time 0.001777/1.103, allocations: 1.088 MB / 0.9971 GB, free: 1.48 MB / 0.7481 GB Notification: Performance of collectInitialBindings (initialization): time 0.00117/1.105, allocations: 0.5024 MB / 0.9976 GB, free: 1.051 MB / 0.7481 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001965/1.107, allocations: 392.2 kB / 0.998 GB, free: 0.8359 MB / 0.7481 GB Notification: Performance of setup shared object (initialization): time 0.0001136/1.107, allocations: 305.1 kB / 0.9982 GB, free: 0.5352 MB / 0.7481 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003472/1.11, allocations: 1.26 MB / 0.9995 GB, free: 15.9 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003818/1.114, allocations: 1.647 MB / 1.001 GB, free: 14.79 MB / 0.7637 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.006646/1.121, allocations: 2.779 MB / 1.004 GB, free: 13.1 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.437e-05/1.121, allocations: 4.719 kB / 1.004 GB, free: 13.1 MB / 0.7637 GB Notification: Performance of matching and sorting (n=215) (initialization): time 0.009823/1.131, allocations: 3.457 MB / 1.007 GB, free: 11.3 MB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 5.181e-05/1.131, allocations: 13.36 kB / 1.007 GB, free: 11.3 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.624e-05/1.131, allocations: 10.19 kB / 1.007 GB, free: 11.3 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002105/1.133, allocations: 389.6 kB / 1.008 GB, free: 11.11 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002695/1.136, allocations: 0.5007 MB / 1.008 GB, free: 10.95 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.006014/1.142, allocations: 5.383 MB / 1.013 GB, free: 5.816 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004798/1.146, allocations: 455.6 kB / 1.014 GB, free: 5.559 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009943/1.148, allocations: 85.62 kB / 1.014 GB, free: 5.531 MB / 0.7637 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 46 * Number of states: 0 () * Number of discrete variables: 8 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,$whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (202): * Single equations (assignments): 198 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,1,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,7), (1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.003971/1.152, allocations: 1.076 MB / 1.015 GB, free: 4.859 MB / 0.7637 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00185/1.153, allocations: 231.6 kB / 1.015 GB, free: 4.738 MB / 0.7637 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01105/1.164, allocations: 3.239 MB / 1.018 GB, free: 2.539 MB / 0.7637 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.704e-05/1.165, allocations: 19.94 kB / 1.018 GB, free: 2.52 MB / 0.7637 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.408e-05/1.165, allocations: 0 / 1.018 GB, free: 2.52 MB / 0.7637 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.941e-05/1.165, allocations: 11.97 kB / 1.018 GB, free: 2.508 MB / 0.7637 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01737/1.182, allocations: 6.199 MB / 1.024 GB, free: 12.27 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.211e-05/1.182, allocations: 3.938 kB / 1.024 GB, free: 12.26 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002198/1.184, allocations: 391.4 kB / 1.025 GB, free: 11.88 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002093/1.186, allocations: 383 kB / 1.025 GB, free: 11.49 MB / 0.7794 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003123/1.187, allocations: 55.89 kB / 1.025 GB, free: 11.44 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0055/1.192, allocations: 5.391 MB / 1.03 GB, free: 5.621 MB / 0.7794 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.347e-06/1.192, allocations: 0 / 1.03 GB, free: 5.621 MB / 0.7794 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01208/1.204, allocations: 4.479 MB / 1.035 GB, free: 1.105 MB / 0.7794 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002826/1.207, allocations: 0.7398 MB / 1.036 GB, free: 352 kB / 0.7794 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001456/1.209, allocations: 51.83 kB / 1.036 GB, free: 300 kB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003207/1.212, allocations: 275.5 kB / 1.036 GB, free: 24 kB / 0.7794 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004309/1.212, allocations: 113.8 kB / 1.036 GB, free: 15.91 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002253/1.213, allocations: 59.95 kB / 1.036 GB, free: 15.86 MB / 0.795 GB Notification: Performance of sorting global known variables: time 0.005987/1.219, allocations: 2.186 MB / 1.038 GB, free: 13.66 MB / 0.795 GB Notification: Performance of sort global known variables: time 3.6e-07/1.219, allocations: 0 / 1.038 GB, free: 13.66 MB / 0.795 GB Notification: Performance of remove unused functions: time 0.005333/1.224, allocations: 0.7836 MB / 1.039 GB, free: 12.87 MB / 0.795 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 5 (conExt[1].opa.lay[1].T[1],conExt[1].opa.lay[1].T[2],conExt[1].opa.lay[2].T[1],conExt[1].opa.lay[2].T[2],conExt[1].opa.lay[2].T[3]) * Number of discrete variables: 4 ($whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of discrete states: 2 (weaDat.conTim.tNext,weaDat.conTimMin.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (153): * Single equations (assignments): 147 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,1,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,7), (1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002233/1.226, allocations: 0.6426 MB / 1.04 GB, free: 12.41 MB / 0.795 GB Notification: Performance of simCode: created initialization part: time 0.008537/1.235, allocations: 3.125 MB / 1.043 GB, free: 9.25 MB / 0.795 GB Notification: Performance of simCode: created event and clocks part: time 6.953e-06/1.235, allocations: 0 / 1.043 GB, free: 9.25 MB / 0.795 GB Notification: Performance of simCode: created simulation system equations: time 0.00413/1.239, allocations: 1.675 MB / 1.044 GB, free: 7.539 MB / 0.795 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.006616/1.246, allocations: 0.7318 MB / 1.045 GB, free: 6.816 MB / 0.795 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01861/1.264, allocations: 7.465 MB / 1.052 GB, free: 15.33 MB / 0.8106 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00401/1.268, allocations: 2.279 MB / 1.054 GB, free: 13.02 MB / 0.8106 GB Notification: Performance of simCode: alias equations: time 0.004972/1.273, allocations: 0.8682 MB / 1.055 GB, free: 12.14 MB / 0.8106 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001821/1.275, allocations: 211.3 kB / 1.055 GB, free: 11.94 MB / 0.8106 GB Notification: Performance of SimCode: time 1.834e-06/1.275, allocations: 0 / 1.055 GB, free: 11.94 MB / 0.8106 GB Notification: Performance of Templates: time 0.09105/1.366, allocations: 43.52 MB / 1.098 GB, free: 0.7812 MB / 0.8419 GB make -j1 -f Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall.makefile (rm -f Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall.pipe ; mkfifo Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall.pipe ; head -c 1048576 < Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall.pipe >> ../files/Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall.sim & ./Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWall.pipe 2>&1)