Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr AixLib_AixLib.Airflow.Multizone.Examples.NaturalVentilation.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo", uses=false) Using package SDF with version 0.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo) Using package Modelica_DeviceDrivers with version 2.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/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) 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 AixLib with version 1.3.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/package.mo) Running command: "" <> buildModelFMU(AixLib.Airflow.Multizone.Examples.NaturalVentilation,fileNamePrefix="AixLib_AixLib_Airflow_Multizone_Examples_NaturalVentilation",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(AixLib.Airflow.Multizone.Examples.NaturalVentilation,fileNamePrefix="AixLib_AixLib_Airflow_Multizone_Examples_NaturalVentilation",fmuType="me",version="2.0",platforms={"static"}) [:1:1-1:32:writable] Error: Class GC_set_max_heap_size not found in scope (looking for a function or record). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/BoundaryConditions/InternalGains/Examples/InternalGains/Lights.mo:27:20-27:398:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/BoundaryConditions/InternalGains/Examples/InternalGains/Machines.mo:31:20-31:400:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_Cleanergy_C9G.mo:36:34-36:594:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:588:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:3852:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_NE_SE_SW_NW_Hor.mo:5:35-5:324:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_Hor.mo:5:35-5:320:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_RoofN_Roof_S.mo:5:35-5:362:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6228:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6853:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:8435:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:9369:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:11505:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:12875:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:2066:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:4252:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/Examples/DryAir/DryAir_test.mo:71:18-71:405:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/package.mo): time 1.709/1.709, allocations: 265 MB / 272.3 MB, free: 8.805 MB / 218.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001126/0.001126, allocations: 176.4 kB / 329.7 MB, free: 376 kB / 266.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.468/1.468, allocations: 221.3 MB / 0.5941 GB, free: 14.56 MB / 458.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00138/0.00138, allocations: 98.53 kB / 0.6993 GB, free: 2.695 MB / 0.5418 GB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/package.mo): time 0.05276/0.05276, allocations: 11.89 MB / 0.816 GB, free: 65.57 MB / 0.5418 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo:9:42-9:258:writable] Notification: This is an open source dummy package of a commercial library. If you want it to be supported, you will need to add an implemention on our github repository: https://github.com/Modelica-OpenVendorSpecificLibraries. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo): time 0.0004004/0.0004003, allocations: 17.25 kB / 0.924 GB, free: 87.12 MB / 0.573 GB Notification: Performance of FrontEnd - loaded program: time 0.2455/0.2459, allocations: 117.8 MB / 1.039 GB, free: 9.18 MB / 0.5887 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2687/0.5146, allocations: 110.2 MB / 1.147 GB, free: 10.86 MB / 0.698 GB Notification: Performance of FrontEnd - scodeFlatten: time 4.773/5.288, allocations: 1.904 GB / 3.051 GB, free: 301.2 MB / 0.9324 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002005/5.288, allocations: 90 kB / 3.051 GB, free: 301.1 MB / 0.9324 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 214 * Number of variables: 214 Notification: Performance of Generate backend data structure: time 2.355/7.644, allocations: 0.6654 GB / 3.716 GB, free: 164.6 MB / 0.9324 GB Notification: Performance of prepare preOptimizeDAE: time 4.547e-05/7.644, allocations: 10.5 kB / 3.716 GB, free: 164.6 MB / 0.9324 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003184/7.647, allocations: 397.6 kB / 3.717 GB, free: 164.6 MB / 0.9324 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002281/7.649, allocations: 0.8755 MB / 3.718 GB, free: 164.3 MB / 0.9324 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.021e-05/7.649, allocations: 28.75 kB / 3.718 GB, free: 164.3 MB / 0.9324 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002575/7.649, allocations: 55.97 kB / 3.718 GB, free: 164.3 MB / 0.9324 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.001619/7.651, allocations: 0.7669 MB / 3.718 GB, free: 164.3 MB / 0.9324 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001705/7.653, allocations: 0.913 MB / 3.719 GB, free: 164.2 MB / 0.9324 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.354e-05/7.653, allocations: 6.25 kB / 3.719 GB, free: 164.2 MB / 0.9324 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.989e-05/7.653, allocations: 0 / 3.719 GB, free: 164.2 MB / 0.9324 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.146e-05/7.653, allocations: 39.02 kB / 3.719 GB, free: 164.2 MB / 0.9324 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00537/7.658, allocations: 4.505 MB / 3.724 GB, free: 161.5 MB / 0.9324 GB Notification: Performance of preOpt comSubExp (simulation): time 0.000984/7.659, allocations: 0.638 MB / 3.724 GB, free: 161.5 MB / 0.9324 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006425/7.66, allocations: 448.9 kB / 3.725 GB, free: 161.5 MB / 0.9324 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004881/7.661, allocations: 0.6739 MB / 3.725 GB, free: 160.8 MB / 0.9324 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.586e-05/7.661, allocations: 47.78 kB / 3.726 GB, free: 160.7 MB / 0.9324 GB Notification: Performance of pre-optimization done (n=70): time 2.655e-06/7.661, allocations: 0 / 3.726 GB, free: 160.7 MB / 0.9324 GB Notification: Performance of matching and sorting (n=70): time 0.002015/7.663, allocations: 0.7774 MB / 3.726 GB, free: 160.6 MB / 0.9324 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.86e-05/7.663, allocations: 59.88 kB / 3.726 GB, free: 160.6 MB / 0.9324 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006724/7.663, allocations: 486.9 kB / 3.727 GB, free: 160.5 MB / 0.9324 GB Notification: Performance of collectPreVariables (initialization): time 7.554e-05/7.663, allocations: 29.31 kB / 3.727 GB, free: 160.4 MB / 0.9324 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001562/7.664, allocations: 325.7 kB / 3.727 GB, free: 160.3 MB / 0.9324 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002101/7.664, allocations: 244.3 kB / 3.727 GB, free: 160.1 MB / 0.9324 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.78e-05/7.664, allocations: 0 / 3.727 GB, free: 160.1 MB / 0.9324 GB Notification: Performance of setup shared object (initialization): time 0.0001087/7.664, allocations: 384.8 kB / 3.728 GB, free: 159.8 MB / 0.9324 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003689/7.664, allocations: 268.9 kB / 3.728 GB, free: 159.8 MB / 0.9324 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004012/7.665, allocations: 370.8 kB / 3.728 GB, free: 159.7 MB / 0.9324 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006066/7.665, allocations: 348.1 kB / 3.729 GB, free: 159.7 MB / 0.9324 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.399e-06/7.665, allocations: 1.438 kB / 3.729 GB, free: 159.7 MB / 0.9324 GB Notification: Performance of matching and sorting (n=82) (initialization): time 0.001354/7.667, allocations: 0.7885 MB / 3.729 GB, free: 159.6 MB / 0.9324 GB Notification: Performance of prepare postOptimizeDAE: time 1.488e-05/7.667, allocations: 3.969 kB / 3.729 GB, free: 159.6 MB / 0.9324 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.878e-06/7.667, allocations: 3.875 kB / 3.729 GB, free: 159.6 MB / 0.9324 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.087e-05/7.667, allocations: 10.25 kB / 3.729 GB, free: 159.6 MB / 0.9324 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007255/7.668, allocations: 149.3 kB / 3.73 GB, free: 159.6 MB / 0.9324 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.761e-05/7.668, allocations: 10.66 kB / 3.73 GB, free: 159.6 MB / 0.9324 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001133/7.669, allocations: 82.17 kB / 3.73 GB, free: 159.6 MB / 0.9324 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.61e-05/7.669, allocations: 24.81 kB / 3.73 GB, free: 159.6 MB / 0.9324 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (82): * Single equations (assignments): 82 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001709/7.669, allocations: 114.8 kB / 3.73 GB, free: 159.5 MB / 0.9324 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000233/7.669, allocations: 84.34 kB / 3.73 GB, free: 159.5 MB / 0.9324 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001652/7.671, allocations: 0.8027 MB / 3.731 GB, free: 159.4 MB / 0.9324 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.146e-05/7.671, allocations: 3.969 kB / 3.731 GB, free: 159.4 MB / 0.9324 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.677e-06/7.671, allocations: 3.938 kB / 3.731 GB, free: 159.4 MB / 0.9324 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001088/7.672, allocations: 0.8299 MB / 3.732 GB, free: 159.2 MB / 0.9324 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003066/7.675, allocations: 1.783 MB / 3.733 GB, free: 158.9 MB / 0.9324 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.268e-06/7.675, allocations: 3.844 kB / 3.733 GB, free: 158.9 MB / 0.9324 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009559/7.676, allocations: 179 kB / 3.733 GB, free: 158.9 MB / 0.9324 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.331e-05/7.676, allocations: 7.906 kB / 3.733 GB, free: 158.9 MB / 0.9324 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.106e-05/7.676, allocations: 13.2 kB / 3.733 GB, free: 158.9 MB / 0.9324 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 6.663e-06/7.676, allocations: 3.906 kB / 3.733 GB, free: 158.9 MB / 0.9324 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.697e-06/7.676, allocations: 3.75 kB / 3.733 GB, free: 158.9 MB / 0.9324 GB Notification: Performance of postOpt detectJacobianSparsePattern (simulation): time 0.001757/7.678, allocations: 1.302 MB / 3.735 GB, free: 158.7 MB / 0.9324 GB Notification: Performance of postOpt generateSymbolicLinearization (simulation): time 0.002638/7.681, allocations: 2.232 MB / 3.737 GB, free: 158.1 MB / 0.9324 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006107/7.681, allocations: 247.5 kB / 3.737 GB, free: 158 MB / 0.9324 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002019/7.681, allocations: 3.125 kB / 3.737 GB, free: 158 MB / 0.9324 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001026/7.682, allocations: 67.91 kB / 3.737 GB, free: 158 MB / 0.9324 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.924e-05/7.683, allocations: 31.83 kB / 3.737 GB, free: 158 MB / 0.9324 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.679e-05/7.683, allocations: 32.11 kB / 3.737 GB, free: 158 MB / 0.9324 GB Notification: Performance of sort global known variables: time 0.0005494/7.683, allocations: 376 kB / 3.738 GB, free: 157.9 MB / 0.9324 GB Notification: Performance of remove unused functions: time 0.002426/7.686, allocations: 0.6133 MB / 3.738 GB, free: 157.8 MB / 0.9324 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 8 (volA.dynBal.U,volA.dynBal.m,volA.dynBal.mXi[1],oriOutBot.mExc,oriOutTop.mExc,volOut.dynBal.U,volOut.dynBal.m,volOut.dynBal.mXi[1]) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (70): * Single equations (assignments): 70 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.002654/7.688, allocations: 1.785 MB / 3.74 GB, free: 157.4 MB / 0.9324 GB Notification: Performance of simCode: created initialization part: time 0.001218/7.69, allocations: 0.6788 MB / 3.741 GB, free: 157.4 MB / 0.9324 GB Notification: Performance of simCode: created event and clocks part: time 5.089e-06/7.69, allocations: 3.031 kB / 3.741 GB, free: 157.4 MB / 0.9324 GB Notification: Performance of simCode: created simulation system equations: time 0.0005095/7.69, allocations: 370.2 kB / 3.741 GB, free: 157.4 MB / 0.9324 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002442/7.693, allocations: 449 kB / 3.741 GB, free: 157.4 MB / 0.9324 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003943/7.696, allocations: 1.776 MB / 3.743 GB, free: 157 MB / 0.9324 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001149/7.698, allocations: 1.226 MB / 3.744 GB, free: 156.3 MB / 0.9324 GB Notification: Performance of SimCode: time 6.21e-07/7.698, allocations: 0 / 3.744 GB, free: 156.3 MB / 0.9324 GB (rm -f AixLib_AixLib.Airflow.Multizone.Examples.NaturalVentilation.pipe ; mkfifo AixLib_AixLib.Airflow.Multizone.Examples.NaturalVentilation.pipe ; head -c 1048576 < AixLib_AixLib.Airflow.Multizone.Examples.NaturalVentilation.pipe >> ../files/AixLib_AixLib.Airflow.Multizone.Examples.NaturalVentilation.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_AixLib_AixLib_Airflow_Multizone_Examples_NaturalVentilation_fmu --startTime=0 --stopTime=7200 --timeout=50 --tolerance=1e-06 AixLib_AixLib_Airflow_Multizone_Examples_NaturalVentilation.fmu > AixLib_AixLib.Airflow.Multizone.Examples.NaturalVentilation.pipe 2>&1)