Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo", uses=false) Using package ThermoSysPro with version 4.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo) Running command: "" <> buildModelFMU(ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1,fileNamePrefix="ThermoSysPro_ThermoSysPro_Fluid_Examples_SimpleExamples_TestStaticCentrifugalPump1",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1,fileNamePrefix="ThermoSysPro_ThermoSysPro_Fluid_Examples_SimpleExamples_TestStaticCentrifugalPump1",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo): time 0.829/0.829, allocations: 150.9 MB / 166.5 MB, free: 14.38 MB / 142.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0004795/0.0004795, allocations: 15.67 kB / 236.6 MB, free: 2.035 MB / 190.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.06174/0.06223, allocations: 31.34 MB / 267.9 MB, free: 7.555 MB / 222.1 MB Notification: Automatically loaded package Complex 4.0.0 due to uses annotation from Modelica. Notification: Automatically loaded package ModelicaServices 4.0.0 due to uses annotation from Modelica. Notification: Automatically loaded package Modelica 4.0.0 due to usage. Notification: Performance of NFInst.instantiate(ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1): time 1.72/1.782, allocations: 295.4 MB / 0.5502 GB, free: 12.78 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.5264/2.309, allocations: 187.4 MB / 0.7332 GB, free: 1.176 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000264/2.309, allocations: 7.312 kB / 0.7332 GB, free: 1.176 MB / 0.5919 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/Machines/StaticCentrifugalPump.mo:63:3-64:67:writable] Warning: Connector C1 is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/Machines/StaticCentrifugalPump.mo:65:3-66:65:writable] Warning: Connector C2 is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/BoundaryConditions/SourceP.mo:58:3-59:65:writable] Warning: Connector C is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/BoundaryConditions/SinkP.mo:46:3-47:67:writable] Warning: Connector C is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). Notification: Performance of NFTyping.typeComponents: time 0.0001463/2.309, allocations: 44.09 kB / 0.7333 GB, free: 1.176 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.0003063/2.309, allocations: 122.8 kB / 0.7334 GB, free: 1.172 MB / 0.5919 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:783:9-783:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:850:9-850:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:1088:9-1088:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph.mo:69:3-69:60:writable] Warning: dh1satp was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph.mo:69:3-69:60:writable] Warning: dh2satp was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph_der.mo:167:3-170:49:writable] Warning: du1satp_der was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph_der.mo:167:3-170:49:writable] Warning: du2satp_der was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/Fluid/derDensity_derP_derh.mo:63:5-63:84:writable] Warning: T was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. Notification: Performance of NFTyping.typeClassSections: time 0.02746/2.337, allocations: 11.33 MB / 0.7444 GB, free: 0.9219 MB / 0.5919 GB Notification: Performance of NFFlatten.flatten: time 0.0006387/2.338, allocations: 441.8 kB / 0.7449 GB, free: 0.9219 MB / 0.5919 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002642/2.338, allocations: 213 kB / 0.7451 GB, free: 0.8984 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001743/2.338, allocations: 164.8 kB / 0.7452 GB, free: 0.8984 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002113/2.338, allocations: 193.4 kB / 0.7454 GB, free: 0.8984 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 4.718e-05/2.338, allocations: 36.53 kB / 0.7454 GB, free: 0.8984 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.03687/2.375, allocations: 19.89 MB / 0.7649 GB, free: 15.95 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0001446/2.375, allocations: 82.58 kB / 0.7649 GB, free: 15.94 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0003152/2.376, allocations: 201.4 kB / 0.7651 GB, free: 15.93 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.02364/2.399, allocations: 9.739 MB / 0.7746 GB, free: 12.34 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 7.383e-06/2.399, allocations: 0 / 0.7746 GB, free: 12.34 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.984e-06/2.399, allocations: 6.656 kB / 0.7747 GB, free: 12.33 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 9.387e-06/2.399, allocations: 0 / 0.7747 GB, free: 12.33 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 92 * Number of variables: 92 Notification: Performance of Generate backend data structure: time 0.005278/2.405, allocations: 1.851 MB / 0.7765 GB, free: 11.11 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 4e-05/2.405, allocations: 8.656 kB / 0.7765 GB, free: 11.11 MB / 0.6075 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.78e-05/2.405, allocations: 76.09 kB / 0.7765 GB, free: 11.06 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.916e-05/2.405, allocations: 52.08 kB / 0.7766 GB, free: 11.03 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004031/2.405, allocations: 318.3 kB / 0.7769 GB, free: 10.76 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.387e-05/2.405, allocations: 26.69 kB / 0.7769 GB, free: 10.76 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.562e-05/2.405, allocations: 34.31 kB / 0.777 GB, free: 10.76 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005907/2.406, allocations: 384.5 kB / 0.7773 GB, free: 10.61 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.307e-05/2.406, allocations: 1.094 kB / 0.7773 GB, free: 10.61 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.673e-05/2.406, allocations: 12.66 kB / 0.7773 GB, free: 10.61 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.548e-06/2.406, allocations: 11.16 kB / 0.7773 GB, free: 10.61 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0004631/2.407, allocations: 261.9 kB / 0.7776 GB, free: 10.57 MB / 0.6075 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00849/2.415, allocations: 6.155 MB / 0.7836 GB, free: 5.324 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001572/2.417, allocations: 309.7 kB / 0.7839 GB, free: 5.223 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001257/2.417, allocations: 57.06 kB / 0.784 GB, free: 5.211 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 0.1637/2.58, allocations: 82.5 MB / 0.8645 GB, free: 15.8 MB / 0.7012 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.231e-05/2.581, allocations: 34.56 kB / 0.8646 GB, free: 15.76 MB / 0.7012 GB Notification: Performance of pre-optimization done (n=13): time 2.825e-06/2.581, allocations: 0 / 0.8646 GB, free: 15.76 MB / 0.7012 GB Notification: Performance of matching and sorting (n=13): time 0.00511/2.586, allocations: 0.9191 MB / 0.8655 GB, free: 14.89 MB / 0.7012 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.977e-05/2.586, allocations: 51.41 kB / 0.8655 GB, free: 14.82 MB / 0.7012 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004024/2.586, allocations: 317.1 kB / 0.8658 GB, free: 14.56 MB / 0.7012 GB Notification: Performance of collectPreVariables (initialization): time 2.221e-05/2.586, allocations: 30.22 kB / 0.8658 GB, free: 14.53 MB / 0.7012 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001699/2.586, allocations: 237.2 kB / 0.8661 GB, free: 14.34 MB / 0.7012 GB Notification: Performance of collectInitialBindings (initialization): time 4.446e-05/2.586, allocations: 50.39 kB / 0.8661 GB, free: 14.3 MB / 0.7012 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.484e-05/2.587, allocations: 62.16 kB / 0.8662 GB, free: 14.25 MB / 0.7012 GB Notification: Performance of setup shared object (initialization): time 0.0001705/2.587, allocations: 345.4 kB / 0.8665 GB, free: 13.91 MB / 0.7012 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001703/2.587, allocations: 60.41 kB / 0.8666 GB, free: 13.88 MB / 0.7012 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002438/2.587, allocations: 166.5 kB / 0.8667 GB, free: 13.7 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003994/2.588, allocations: 245.9 kB / 0.8669 GB, free: 13.48 MB / 0.7012 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.99e-06/2.588, allocations: 6.625 kB / 0.867 GB, free: 13.48 MB / 0.7012 GB Notification: Performance of matching and sorting (n=32) (initialization): time 0.002359/2.59, allocations: 0.5647 MB / 0.8675 GB, free: 13.01 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 1.986e-05/2.59, allocations: 5.875 kB / 0.8675 GB, free: 13 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.094e-05/2.59, allocations: 4 kB / 0.8675 GB, free: 13 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007558/2.591, allocations: 153.3 kB / 0.8677 GB, free: 12.87 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001527/2.591, allocations: 48.25 kB / 0.8677 GB, free: 12.83 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008246/2.592, allocations: 0.6853 MB / 0.8684 GB, free: 12.18 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002216/2.592, allocations: 43.45 kB / 0.8684 GB, free: 12.14 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.436e-05/2.592, allocations: 13.88 kB / 0.8684 GB, free: 12.13 MB / 0.7012 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 15 * Number of states: 0 () * Number of discrete variables: 6 (sourceP.C.ftype,StaticCentrifugalPump1.fluid,sinkP.fluid,sourceP.fluid1,sourceP.C.diff_on_2,StaticCentrifugalPump1.C2.diff_on_1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (23): * Single equations (assignments): 22 * 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 {(3,7)} Notification: Performance of prepare postOptimizeDAE: time 0.0001825/2.592, allocations: 149.3 kB / 0.8686 GB, free: 12 MB / 0.7012 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.714e-05/2.592, allocations: 31.81 kB / 0.8686 GB, free: 11.97 MB / 0.7012 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002215/2.594, allocations: 482.1 kB / 0.8691 GB, free: 11.57 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.883e-06/2.594, allocations: 4 kB / 0.8691 GB, free: 11.56 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.939e-06/2.594, allocations: 0 / 0.8691 GB, free: 11.56 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.228e-06/2.594, allocations: 0 / 0.8691 GB, free: 11.56 MB / 0.7012 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0003667/2.595, allocations: 336.3 kB / 0.8694 GB, free: 11.25 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.653e-06/2.595, allocations: 0 / 0.8694 GB, free: 11.25 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 4.52e-05/2.595, allocations: 11.98 kB / 0.8694 GB, free: 11.23 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006454/2.596, allocations: 152.3 kB / 0.8695 GB, free: 11.11 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.365e-05/2.596, allocations: 3.188 kB / 0.8695 GB, free: 11.11 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007098/2.596, allocations: 0.6899 MB / 0.8702 GB, free: 10.45 MB / 0.7012 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.152e-06/2.596, allocations: 0 / 0.8702 GB, free: 10.45 MB / 0.7012 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002073/2.598, allocations: 476.7 kB / 0.8707 GB, free: 10.03 MB / 0.7012 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001211/2.599, allocations: 114.8 kB / 0.8708 GB, free: 9.902 MB / 0.7012 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.792e-05/2.599, allocations: 1.875 kB / 0.8708 GB, free: 9.902 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001058/2.599, allocations: 7.031 kB / 0.8708 GB, free: 9.898 MB / 0.7012 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.875e-05/2.599, allocations: 13.92 kB / 0.8708 GB, free: 9.887 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.067e-06/2.599, allocations: 0 / 0.8708 GB, free: 9.887 MB / 0.7012 GB Notification: Performance of sorting global known variables: time 0.0002725/2.599, allocations: 234.2 kB / 0.871 GB, free: 9.66 MB / 0.7012 GB Notification: Performance of sort global known variables: time 1.41e-07/2.599, allocations: 4 kB / 0.871 GB, free: 9.656 MB / 0.7012 GB Notification: Performance of remove unused functions: time 0.00398/2.603, allocations: 1.449 MB / 0.8725 GB, free: 8.203 MB / 0.7012 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * 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 (3): * Single equations (assignments): 2 * 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 {(3,7)} Notification: Performance of Backend phase and start with SimCode phase: time 0.00733/2.61, allocations: 2.878 MB / 0.8753 GB, free: 5.574 MB / 0.7012 GB Notification: Performance of simCode: created initialization part: time 0.0006581/2.611, allocations: 199.7 kB / 0.8755 GB, free: 5.391 MB / 0.7012 GB Notification: Performance of simCode: created event and clocks part: time 4.96e-06/2.611, allocations: 4 kB / 0.8755 GB, free: 5.387 MB / 0.7012 GB Notification: Performance of simCode: created simulation system equations: time 0.0002477/2.611, allocations: 84.22 kB / 0.8755 GB, free: 5.309 MB / 0.7012 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004377/2.612, allocations: 72.84 kB / 0.8756 GB, free: 5.246 MB / 0.7012 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008911/2.621, allocations: 3.833 MB / 0.8793 GB, free: 1.301 MB / 0.7012 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003968/2.621, allocations: 0.7717 MB / 0.8801 GB, free: 0.5 MB / 0.7012 GB Notification: Performance of simCode: alias equations: time 0.0001348/2.621, allocations: 35.59 kB / 0.8801 GB, free: 476 kB / 0.7012 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001445/2.621, allocations: 103.4 kB / 0.8802 GB, free: 372 kB / 0.7012 GB Notification: Performance of SimCode: time 1.774e-06/2.621, allocations: 0 / 0.8802 GB, free: 372 kB / 0.7012 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0938/2.715, allocations: 52.04 MB / 0.9311 GB, free: 12.51 MB / 0.7637 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.8/16.52, allocations: 6.938 kB / 0.9311 GB, free: 12.51 MB / 0.7637 GB (rm -f ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1.pipe ; mkfifo ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1.pipe ; head -c 1048576 < ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1.pipe >> ../files/ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1.sim & python3 -m fmpy simulate --output-file ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1_res.csv --start-time 0 --stop-time 1000 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.4 ThermoSysPro_ThermoSysPro_Fluid_Examples_SimpleExamples_TestStaticCentrifugalPump1.fmu > ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestStaticCentrifugalPump1.pipe 2>&1)