Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr AixLib_AixLib.Fluid.Interfaces.Examples.FourPortHeatMassExchanger.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.Fluid.Interfaces.Examples.FourPortHeatMassExchanger,fileNamePrefix="AixLib_AixLib_Fluid_Interfaces_Examples_FourPortHeatMassExchanger",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(AixLib.Fluid.Interfaces.Examples.FourPortHeatMassExchanger,fileNamePrefix="AixLib_AixLib_Fluid_Interfaces_Examples_FourPortHeatMassExchanger",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 1.789/1.789, allocations: 265 MB / 272.3 MB, free: 8.793 MB / 218.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001217/0.001216, allocations: 181.2 kB / 329.7 MB, free: 372 kB / 266.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.516/1.516, allocations: 221.4 MB / 0.5941 GB, free: 14.52 MB / 458.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001066/0.001065, allocations: 100.6 kB / 0.6993 GB, free: 2.656 MB / 0.5418 GB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/package.mo): time 0.05363/0.05363, allocations: 11.9 MB / 0.816 GB, free: 65.59 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 0.0004026/0.0004026, allocations: 13.08 kB / 0.924 GB, free: 86.94 MB / 0.573 GB Notification: Performance of FrontEnd - loaded program: time 0.2642/0.2646, allocations: 117.8 MB / 1.039 GB, free: 9.184 MB / 0.5887 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2767/0.5414, allocations: 110.2 MB / 1.147 GB, free: 10.86 MB / 0.698 GB Notification: Performance of FrontEnd - scodeFlatten: time 0.9859/1.527, allocations: 402.4 MB / 1.54 GB, free: 4.258 MB / 0.9324 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002349/1.528, allocations: 93.66 kB / 1.54 GB, free: 4.215 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: 174 * Number of variables: 174 Notification: Performance of Generate backend data structure: time 1.863/3.39, allocations: 444.1 MB / 1.973 GB, free: 198.9 MB / 0.9324 GB Notification: Performance of prepare preOptimizeDAE: time 6.077e-05/3.39, allocations: 7.906 kB / 1.973 GB, free: 198.9 MB / 0.9324 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007376/3.391, allocations: 142.3 kB / 1.974 GB, free: 198.9 MB / 0.9324 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.03162/3.423, allocations: 13.01 MB / 1.986 GB, free: 198.2 MB / 0.9324 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.315e-05/3.423, allocations: 29.25 kB / 1.986 GB, free: 198.2 MB / 0.9324 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002353/3.423, allocations: 42.38 kB / 1.986 GB, free: 198.2 MB / 0.9324 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.001144/3.424, allocations: 449.9 kB / 1.987 GB, free: 198.2 MB / 0.9324 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001457/3.426, allocations: 0.6353 MB / 1.987 GB, free: 198 MB / 0.9324 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.554e-05/3.426, allocations: 4.281 kB / 1.987 GB, free: 198 MB / 0.9324 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.53e-05/3.426, allocations: 3.812 kB / 1.987 GB, free: 198 MB / 0.9324 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.669e-05/3.426, allocations: 20.66 kB / 1.987 GB, free: 198 MB / 0.9324 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005302/3.431, allocations: 3.546 MB / 1.991 GB, free: 196.2 MB / 0.9324 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004115/3.432, allocations: 197.9 kB / 1.991 GB, free: 196.2 MB / 0.9324 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002053/3.432, allocations: 151.9 kB / 1.991 GB, free: 196.2 MB / 0.9324 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004639/3.432, allocations: 0.664 MB / 1.992 GB, free: 195.5 MB / 0.9324 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.397e-05/3.432, allocations: 39.28 kB / 1.992 GB, free: 195.4 MB / 0.9324 GB Notification: Performance of pre-optimization done (n=31): time 2.415e-06/3.432, allocations: 2.562 kB / 1.992 GB, free: 195.4 MB / 0.9324 GB Notification: Performance of matching and sorting (n=31): time 0.0009424/3.433, allocations: 350.9 kB / 1.992 GB, free: 195.3 MB / 0.9324 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.618e-05/3.433, allocations: 64.92 kB / 1.992 GB, free: 195.3 MB / 0.9324 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00102/3.434, allocations: 0.6426 MB / 1.993 GB, free: 195.1 MB / 0.9324 GB Notification: Performance of collectPreVariables (initialization): time 7.041e-05/3.434, allocations: 33.02 kB / 1.993 GB, free: 195.1 MB / 0.9324 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002583/3.435, allocations: 374.8 kB / 1.993 GB, free: 194.9 MB / 0.9324 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001209/3.435, allocations: 110.4 kB / 1.993 GB, free: 194.9 MB / 0.9324 GB Notification: Performance of simplifyInitialFunctions (initialization): time 1.757e-05/3.435, allocations: 0 / 1.993 GB, free: 194.9 MB / 0.9324 GB Notification: Performance of setup shared object (initialization): time 8.679e-05/3.435, allocations: 331.8 kB / 1.994 GB, free: 194.6 MB / 0.9324 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001818/3.435, allocations: 116.3 kB / 1.994 GB, free: 194.6 MB / 0.9324 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002935/3.435, allocations: 322.7 kB / 1.994 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004306/3.436, allocations: 194.3 kB / 1.994 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.929e-06/3.436, allocations: 0 / 1.994 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of matching and sorting (n=57) (initialization): time 0.0009272/3.437, allocations: 499.8 kB / 1.995 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of prepare postOptimizeDAE: time 1.696e-05/3.437, allocations: 3.938 kB / 1.995 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.221e-05/3.437, allocations: 3.75 kB / 1.995 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.178e-05/3.437, allocations: 15.52 kB / 1.995 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003975/3.437, allocations: 115.9 kB / 1.995 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.262e-05/3.437, allocations: 8.969 kB / 1.995 GB, free: 194.3 MB / 0.9324 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007741/3.438, allocations: 88.17 kB / 1.995 GB, free: 194.2 MB / 0.9324 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.327e-05/3.438, allocations: 30.31 kB / 1.995 GB, free: 194.2 MB / 0.9324 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 23 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (57): * Single equations (assignments): 57 * 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 0.0001449/3.438, allocations: 113.4 kB / 1.995 GB, free: 194.1 MB / 0.9324 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001966/3.439, allocations: 84.03 kB / 1.995 GB, free: 194.1 MB / 0.9324 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009169/3.439, allocations: 446.2 kB / 1.996 GB, free: 194 MB / 0.9324 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.184e-05/3.439, allocations: 5.781 kB / 1.996 GB, free: 194 MB / 0.9324 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.632e-06/3.44, allocations: 0 / 1.996 GB, free: 194 MB / 0.9324 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0005792/3.44, allocations: 406.8 kB / 1.996 GB, free: 193.9 MB / 0.9324 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002062/3.442, allocations: 1.228 MB / 1.997 GB, free: 193.5 MB / 0.9324 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.019e-06/3.442, allocations: 0 / 1.997 GB, free: 193.5 MB / 0.9324 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003682/3.443, allocations: 83.3 kB / 1.997 GB, free: 193.5 MB / 0.9324 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.027e-06/3.443, allocations: 3.938 kB / 1.997 GB, free: 193.5 MB / 0.9324 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.144e-05/3.443, allocations: 10.23 kB / 1.997 GB, free: 193.5 MB / 0.9324 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.538e-06/3.443, allocations: 3.938 kB / 1.997 GB, free: 193.5 MB / 0.9324 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.897e-06/3.443, allocations: 0 / 1.997 GB, free: 193.5 MB / 0.9324 GB Notification: Performance of postOpt detectJacobianSparsePattern (simulation): time 0.001008/3.444, allocations: 0.7558 MB / 1.998 GB, free: 193.2 MB / 0.9324 GB Notification: Performance of postOpt generateSymbolicLinearization (simulation): time 0.001253/3.445, allocations: 1.366 MB / 1.999 GB, free: 192.6 MB / 0.9324 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003888/3.445, allocations: 231 kB / 2 GB, free: 192.4 MB / 0.9324 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001699/3.445, allocations: 2.344 kB / 2 GB, free: 192.4 MB / 0.9324 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005995/3.446, allocations: 58.53 kB / 2 GB, free: 192.4 MB / 0.9324 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.096e-05/3.446, allocations: 22.67 kB / 2 GB, free: 192.4 MB / 0.9324 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.12e-05/3.446, allocations: 20.33 kB / 2 GB, free: 192.4 MB / 0.9324 GB Notification: Performance of sort global known variables: time 0.0006587/3.447, allocations: 0.4952 MB / 2 GB, free: 192.3 MB / 0.9324 GB Notification: Performance of remove unused functions: time 0.002141/3.449, allocations: 447.2 kB / 2.001 GB, free: 192.3 MB / 0.9324 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 2 (fouPor.vol1.dynBal.U,fouPor.vol2.dynBal.U) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (34): * Single equations (assignments): 31 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * 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 0.001106/3.45, allocations: 0.5525 MB / 2.001 GB, free: 192.1 MB / 0.9324 GB Notification: Performance of simCode: created initialization part: time 0.0005573/3.451, allocations: 334.6 kB / 2.002 GB, free: 192.1 MB / 0.9324 GB Notification: Performance of simCode: created event and clocks part: time 3.166e-06/3.451, allocations: 0 / 2.002 GB, free: 192.1 MB / 0.9324 GB Notification: Performance of simCode: created simulation system equations: time 0.0002124/3.451, allocations: 164.8 kB / 2.002 GB, free: 192.1 MB / 0.9324 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00217/3.453, allocations: 469.4 kB / 2.002 GB, free: 192.1 MB / 0.9324 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002557/3.456, allocations: 1.18 MB / 2.003 GB, free: 191.8 MB / 0.9324 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008598/3.457, allocations: 1.144 MB / 2.004 GB, free: 191.1 MB / 0.9324 GB Notification: Performance of SimCode: time 7.21e-07/3.457, allocations: 2.344 kB / 2.004 GB, free: 191.1 MB / 0.9324 GB (rm -f AixLib_AixLib.Fluid.Interfaces.Examples.FourPortHeatMassExchanger.pipe ; mkfifo AixLib_AixLib.Fluid.Interfaces.Examples.FourPortHeatMassExchanger.pipe ; head -c 1048576 < AixLib_AixLib.Fluid.Interfaces.Examples.FourPortHeatMassExchanger.pipe >> ../files/AixLib_AixLib.Fluid.Interfaces.Examples.FourPortHeatMassExchanger.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_AixLib_AixLib_Fluid_Interfaces_Examples_FourPortHeatMassExchanger_fmu --startTime=0 --stopTime=5 --timeout=50 --tolerance=1e-06 AixLib_AixLib_Fluid_Interfaces_Examples_FourPortHeatMassExchanger.fmu > AixLib_AixLib.Fluid.Interfaces.Examples.FourPortHeatMassExchanger.pipe 2>&1)