Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY,fileNamePrefix="Buildings_maint_7_0_x_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_DY",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY,fileNamePrefix="Buildings_maint_7_0_x_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_DY",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.386/1.386, allocations: 252 MB / 267 MB, free: 10.96 MB / 218.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001123/0.001123, allocations: 178.1 kB / 326.6 MB, free: 2.227 MB / 250.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.952/1.952, allocations: 205.4 MB / 0.5777 GB, free: 20.26 MB / 426.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0007575/0.0007575, allocations: 101.1 kB / 0.6823 GB, free: 12.87 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 0.0003624/0.0003625, allocations: 9.594 kB / 0.7965 GB, free: 135.2 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2368/0.2372, allocations: 106.3 MB / 0.9003 GB, free: 63.79 MB / 0.6042 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY): time 0.01414/0.2514, allocations: 16.54 MB / 0.9165 GB, free: 47.19 MB / 0.6042 GB Notification: Performance of NFInst.instExpressions: time 0.009181/0.2606, allocations: 6.493 MB / 0.9228 GB, free: 40.68 MB / 0.6042 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001917/0.2626, allocations: 43.88 kB / 0.9229 GB, free: 40.63 MB / 0.6042 GB Notification: Performance of NFTyping.typeComponents: time 0.001204/0.2638, allocations: 389.2 kB / 0.9232 GB, free: 40.25 MB / 0.6042 GB Notification: Performance of NFTyping.typeBindings: time 0.003193/0.267, allocations: 1.16 MB / 0.9244 GB, free: 39.09 MB / 0.6042 GB Notification: Performance of NFTyping.typeClassSections: time 0.002436/0.2695, allocations: 0.7811 MB / 0.9251 GB, free: 38.3 MB / 0.6042 GB Notification: Performance of NFFlatten.flatten: time 0.005653/0.2751, allocations: 6.688 MB / 0.9317 GB, free: 31.6 MB / 0.6042 GB Notification: Performance of NFFlatten.resolveConnections: time 0.009951/0.2851, allocations: 7.978 MB / 0.9395 GB, free: 23.55 MB / 0.6042 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003213/0.2883, allocations: 1.756 MB / 0.9412 GB, free: 21.79 MB / 0.6042 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00405/0.2924, allocations: 2.684 MB / 0.9438 GB, free: 19.09 MB / 0.6042 GB Notification: Performance of NFPackage.collectConstants: time 0.0008597/0.2933, allocations: 244 kB / 0.944 GB, free: 18.86 MB / 0.6042 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002072/0.2954, allocations: 0.6868 MB / 0.9447 GB, free: 18.17 MB / 0.6042 GB Notification: Performance of NFScalarize.scalarize: time 0.001929/0.2973, allocations: 1.941 MB / 0.9466 GB, free: 16.22 MB / 0.6042 GB Notification: Performance of NFVerifyModel.verify: time 0.001017/0.2984, allocations: 0.7225 MB / 0.9473 GB, free: 15.49 MB / 0.6042 GB Notification: Performance of NFConvertDAE.convert: time 0.005815/0.3042, allocations: 6.737 MB / 0.9539 GB, free: 8.738 MB / 0.6042 GB Notification: Performance of FrontEnd - DAE generated: time 7.685e-06/0.3042, allocations: 0 / 0.9539 GB, free: 8.738 MB / 0.6042 GB Notification: Performance of FrontEnd: time 2.444e-06/0.3042, allocations: 0 / 0.9539 GB, free: 8.738 MB / 0.6042 GB Notification: Performance of Transformations before backend: time 0.0002458/0.3045, allocations: 0 / 0.9539 GB, free: 8.738 MB / 0.6042 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1034 * Number of variables: 1034 Notification: Performance of Generate backend data structure: time 0.007206/0.3117, allocations: 3.227 MB / 0.957 GB, free: 5.449 MB / 0.6042 GB Notification: Performance of prepare preOptimizeDAE: time 4.256e-05/0.3118, allocations: 8.031 kB / 0.957 GB, free: 5.441 MB / 0.6042 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001272/0.313, allocations: 0.563 MB / 0.9576 GB, free: 4.871 MB / 0.6042 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01187/0.3249, allocations: 2.367 MB / 0.9599 GB, free: 2.496 MB / 0.6042 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005158/0.3301, allocations: 2.201 MB / 0.9621 GB, free: 256 kB / 0.6042 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002722/0.3304, allocations: 279.5 kB / 0.9623 GB, free: 15.97 MB / 0.6198 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001882/0.3323, allocations: 363.9 kB / 0.9627 GB, free: 15.62 MB / 0.6198 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02108/0.3534, allocations: 7.328 MB / 0.9698 GB, free: 8.172 MB / 0.6198 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.398e-05/0.3536, allocations: 4 kB / 0.9698 GB, free: 8.168 MB / 0.6198 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006339/0.3542, allocations: 156 kB / 0.97 GB, free: 8.016 MB / 0.6198 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005142/0.3547, allocations: 338.4 kB / 0.9703 GB, free: 7.68 MB / 0.6198 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01929/0.374, allocations: 7.127 MB / 0.9773 GB, free: 0.5391 MB / 0.6198 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 0.04501/0.4191, allocations: 28.22 MB / 1.005 GB, free: 1.914 MB / 0.6511 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008453/0.4276, allocations: 4.18 MB / 1.009 GB, free: 13.52 MB / 0.6667 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005677/0.4333, allocations: 2.343 MB / 1.011 GB, free: 11.16 MB / 0.6667 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003468/0.4337, allocations: 135 kB / 1.011 GB, free: 11.01 MB / 0.6667 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.648e-05/0.4338, allocations: 56.5 kB / 1.011 GB, free: 10.95 MB / 0.6667 GB Notification: Performance of pre-optimization done (n=198): time 4.699e-06/0.4338, allocations: 0 / 1.011 GB, free: 10.95 MB / 0.6667 GB Notification: Performance of matching and sorting (n=257): time 0.1087/0.5425, allocations: 30.46 MB / 1.041 GB, free: 12.41 MB / 0.698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001579/0.5427, allocations: 243.5 kB / 1.041 GB, free: 12.12 MB / 0.698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002282/0.545, allocations: 1.454 MB / 1.043 GB, free: 10.66 MB / 0.698 GB Notification: Performance of collectPreVariables (initialization): time 0.0005852/0.5456, allocations: 65.7 kB / 1.043 GB, free: 10.59 MB / 0.698 GB Notification: Performance of collectInitialEqns (initialization): time 0.00115/0.5467, allocations: 1.559 MB / 1.044 GB, free: 9.008 MB / 0.698 GB Notification: Performance of collectInitialBindings (initialization): time 0.001136/0.5479, allocations: 0.8781 MB / 1.045 GB, free: 8.117 MB / 0.698 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002184/0.5481, allocations: 60 kB / 1.045 GB, free: 8.059 MB / 0.698 GB Notification: Performance of setup shared object (initialization): time 0.0002582/0.5484, allocations: 440.4 kB / 1.046 GB, free: 7.621 MB / 0.698 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005692/0.5541, allocations: 2.527 MB / 1.048 GB, free: 5.09 MB / 0.698 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006366/0.5604, allocations: 3.419 MB / 1.051 GB, free: 1.289 MB / 0.698 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.4896/1.05, allocations: 2.962 MB / 1.054 GB, free: 136 MB / 0.698 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.794e-05/1.05, allocations: 7.312 kB / 1.054 GB, free: 136 MB / 0.698 GB Notification: Performance of matching and sorting (n=398) (initialization): time 0.03145/1.082, allocations: 10.24 MB / 1.064 GB, free: 135.6 MB / 0.698 GB Notification: Performance of prepare postOptimizeDAE: time 0.0007387/1.082, allocations: 0.8791 MB / 1.065 GB, free: 134.5 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.705e-05/1.082, allocations: 30.44 kB / 1.065 GB, free: 134.5 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02337/1.106, allocations: 5.671 MB / 1.071 GB, free: 134.4 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004603/1.111, allocations: 0.9816 MB / 1.072 GB, free: 134.4 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03776/1.148, allocations: 21.58 MB / 1.093 GB, free: 123.9 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004547/1.153, allocations: 0.5531 MB / 1.093 GB, free: 123.6 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005378/1.153, allocations: 154.8 kB / 1.094 GB, free: 123.6 MB / 0.698 GB Notification: Performance of prepare postOptimizeDAE: time 1.66e-05/1.154, allocations: 3.969 kB / 1.094 GB, free: 123.6 MB / 0.698 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02012/1.174, allocations: 8.404 MB / 1.102 GB, free: 115.7 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001193/1.174, allocations: 28 kB / 1.102 GB, free: 115.7 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01293/1.187, allocations: 3.54 MB / 1.105 GB, free: 112.2 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005006/1.192, allocations: 1.131 MB / 1.106 GB, free: 111 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01944/1.211, allocations: 11.8 MB / 1.118 GB, free: 99.15 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004259/1.216, allocations: 0.5303 MB / 1.118 GB, free: 98.62 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007708/1.216, allocations: 148 kB / 1.119 GB, free: 98.48 MB / 0.698 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 121 * 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 (304): * Single equations (assignments): 302 * 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: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(6,100.0%) 42} * Non-linear torn systems: 1 {6 42} Notification: Performance of prepare postOptimizeDAE: time 0.003543/1.22, allocations: 1.622 MB / 1.12 GB, free: 96.86 MB / 0.698 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008515/1.221, allocations: 203 kB / 1.12 GB, free: 96.66 MB / 0.698 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0287/1.25, allocations: 9.819 MB / 1.13 GB, free: 86.8 MB / 0.698 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.167e-05/1.25, allocations: 24 kB / 1.13 GB, free: 86.77 MB / 0.698 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.704e-05/1.25, allocations: 12 kB / 1.13 GB, free: 86.76 MB / 0.698 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.879e-05/1.25, allocations: 15.95 kB / 1.13 GB, free: 86.75 MB / 0.698 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.05094/1.301, allocations: 15.2 MB / 1.145 GB, free: 71.39 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.048e-05/1.301, allocations: 8 kB / 1.145 GB, free: 71.38 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004201/1.305, allocations: 0.7294 MB / 1.146 GB, free: 70.65 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.02953/1.335, allocations: 5.336 MB / 1.151 GB, free: 65.3 MB / 0.698 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007338/1.335, allocations: 71.95 kB / 1.151 GB, free: 65.23 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04923/1.385, allocations: 20.43 MB / 1.171 GB, free: 44.54 MB / 0.698 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.241e-05/1.385, allocations: 11.94 kB / 1.171 GB, free: 44.53 MB / 0.698 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03492/1.42, allocations: 9.349 MB / 1.18 GB, free: 34.99 MB / 0.698 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002503/1.422, allocations: 0.7004 MB / 1.181 GB, free: 34.27 MB / 0.698 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0006308/1.423, allocations: 59.98 kB / 1.181 GB, free: 34.21 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.005275/1.428, allocations: 0.5067 MB / 1.181 GB, free: 33.71 MB / 0.698 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008739/1.429, allocations: 214.4 kB / 1.181 GB, free: 33.5 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003444/1.43, allocations: 95.94 kB / 1.181 GB, free: 33.4 MB / 0.698 GB Notification: Performance of sorting global known variables: time 0.00194/1.431, allocations: 1.01 MB / 1.182 GB, free: 32.39 MB / 0.698 GB Notification: Performance of sort global known variables: time 5.21e-07/1.431, allocations: 0 / 1.182 GB, free: 32.39 MB / 0.698 GB Notification: Performance of remove unused functions: time 0.008293/1.44, allocations: 1.766 MB / 1.184 GB, free: 30.62 MB / 0.698 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 40 * 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 (162): * Single equations (assignments): 160 * 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: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(6,100.0%) 42} * Non-linear torn systems: 1 {6 42} Notification: Performance of Backend phase and start with SimCode phase: time 0.0368/1.477, allocations: 10.01 MB / 1.194 GB, free: 20.42 MB / 0.698 GB Notification: Performance of simCode: created initialization part: time 0.04133/1.518, allocations: 11.31 MB / 1.205 GB, free: 9.062 MB / 0.698 GB Notification: Performance of simCode: created event and clocks part: time 2.157e-05/1.518, allocations: 0 / 1.205 GB, free: 9.062 MB / 0.698 GB Notification: Performance of simCode: created simulation system equations: time 0.01647/1.535, allocations: 4.114 MB / 1.209 GB, free: 4.922 MB / 0.698 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003936/1.539, allocations: 283.3 kB / 1.209 GB, free: 4.652 MB / 0.698 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.08263/1.621, allocations: 29.29 MB / 1.238 GB, free: 6.277 MB / 0.7292 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003561/1.625, allocations: 2.856 MB / 1.241 GB, free: 3.391 MB / 0.7292 GB Notification: Performance of simCode: alias equations: time 0.005765/1.631, allocations: 1.665 MB / 1.242 GB, free: 1.73 MB / 0.7292 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002093/1.633, allocations: 1.233 MB / 1.243 GB, free: 0.5 MB / 0.7292 GB Notification: Performance of SimCode: time 1.302e-06/1.633, allocations: 0 / 1.243 GB, free: 0.5 MB / 0.7292 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1538/1.787, allocations: 90.65 MB / 1.332 GB, free: 6.207 MB / 0.823 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002654/1.787, allocations: 291.8 kB / 1.332 GB, free: 5.855 MB / 0.823 GB Notification: Performance of buildModelFMU: Generate platform static: time 4.062/5.849, allocations: 0 / 1.332 GB, free: 5.855 MB / 0.823 GB (rm -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_7_0_x_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_DY_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_maint_7_0_x_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_DY.fmu > Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.pipe 2>&1)