Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo", uses=false) Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/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 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.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed") translateModel(Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00142/0.00142, allocations: 107.3 kB / 15.33 MB, free: 0.5078 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001377/0.001376, allocations: 193.5 kB / 16.26 MB, free: 6.148 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.414/1.414, allocations: 222.9 MB / 239.9 MB, free: 4.418 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.866/2.866, allocations: 472.6 MB / 0.7448 GB, free: 4.922 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001353/0.001353, allocations: 63.53 kB / 0.9115 GB, free: 33.54 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3575/0.3588, allocations: 159.9 MB / 1.068 GB, free: 10.81 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed): time 0.07149/0.4304, allocations: 69.37 MB / 1.135 GB, free: 5.203 MB / 0.8887 GB Notification: Performance of NFInst.instExpressions: time 0.02647/0.4569, allocations: 14.43 MB / 1.15 GB, free: 6.738 MB / 0.9044 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004505/0.4615, allocations: 67.56 kB / 1.15 GB, free: 6.672 MB / 0.9044 GB Notification: Performance of NFTyping.typeComponents: time 0.00358/0.4651, allocations: 0.8045 MB / 1.15 GB, free: 5.863 MB / 0.9044 GB Notification: Performance of NFTyping.typeBindings: time 0.009495/0.4746, allocations: 2.375 MB / 1.153 GB, free: 3.484 MB / 0.9044 GB Notification: Performance of NFTyping.typeClassSections: time 0.006621/0.4813, allocations: 1.825 MB / 1.154 GB, free: 1.676 MB / 0.9044 GB Notification: Performance of NFFlatten.flatten: time 0.007657/0.4889, allocations: 4.75 MB / 1.159 GB, free: 12.91 MB / 0.92 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002974/0.4919, allocations: 1.614 MB / 1.161 GB, free: 11.26 MB / 0.92 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00516/0.4971, allocations: 1.811 MB / 1.162 GB, free: 9.445 MB / 0.92 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002462/0.4996, allocations: 1.319 MB / 1.164 GB, free: 8.121 MB / 0.92 GB Notification: Performance of NFPackage.collectConstants: time 0.0005943/0.5002, allocations: 200 kB / 1.164 GB, free: 7.926 MB / 0.92 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00487/0.5051, allocations: 1.95 MB / 1.166 GB, free: 5.973 MB / 0.92 GB Notification: Performance of NFScalarize.scalarize: time 0.0007055/0.5058, allocations: 478.4 kB / 1.166 GB, free: 5.504 MB / 0.92 GB Notification: Performance of NFVerifyModel.verify: time 0.001918/0.5077, allocations: 1.035 MB / 1.167 GB, free: 4.465 MB / 0.92 GB Notification: Performance of NFConvertDAE.convert: time 0.005823/0.5136, allocations: 3.526 MB / 1.171 GB, free: 0.9297 MB / 0.92 GB Notification: Performance of FrontEnd - DAE generated: time 4.408e-06/0.5136, allocations: 0 / 1.171 GB, free: 0.9297 MB / 0.92 GB Notification: Performance of FrontEnd: time 1.533e-06/0.5136, allocations: 0 / 1.171 GB, free: 0.9297 MB / 0.92 GB Notification: Performance of Transformations before backend: time 8.299e-05/0.5137, allocations: 0 / 1.171 GB, free: 0.9297 MB / 0.92 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 296 * Number of variables: 296 Notification: Performance of Generate backend data structure: time 0.005668/0.5194, allocations: 2.367 MB / 1.173 GB, free: 14.49 MB / 0.9356 GB Notification: Performance of prepare preOptimizeDAE: time 4.64e-05/0.5194, allocations: 11.97 kB / 1.173 GB, free: 14.48 MB / 0.9356 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005358/0.5248, allocations: 0.6543 MB / 1.174 GB, free: 13.82 MB / 0.9356 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004091/0.5289, allocations: 1.562 MB / 1.175 GB, free: 12.2 MB / 0.9356 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002793/0.5292, allocations: 140 kB / 1.175 GB, free: 12.06 MB / 0.9356 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004925/0.5297, allocations: 116 kB / 1.175 GB, free: 11.95 MB / 0.9356 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005953/0.5357, allocations: 1.629 MB / 1.177 GB, free: 10.23 MB / 0.9356 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.146e-05/0.5358, allocations: 3.938 kB / 1.177 GB, free: 10.22 MB / 0.9356 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001932/0.536, allocations: 59.97 kB / 1.177 GB, free: 10.16 MB / 0.9356 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.764e-05/0.536, allocations: 36 kB / 1.177 GB, free: 10.13 MB / 0.9356 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005246/0.5413, allocations: 1.437 MB / 1.179 GB, free: 8.684 MB / 0.9356 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 0.01257/0.5539, allocations: 6.969 MB / 1.185 GB, free: 1.371 MB / 0.9356 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002414/0.5563, allocations: 0.7477 MB / 1.186 GB, free: 0.6172 MB / 0.9356 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001764/0.5581, allocations: 496.1 kB / 1.187 GB, free: 136 kB / 0.9356 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001527/0.5597, allocations: 1.27 MB / 1.188 GB, free: 14.58 MB / 0.9512 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002195/0.5619, allocations: 0.6396 MB / 1.188 GB, free: 13.91 MB / 0.9512 GB Notification: Performance of pre-optimization done (n=69): time 5.21e-06/0.5619, allocations: 0 / 1.188 GB, free: 13.91 MB / 0.9512 GB Notification: Performance of matching and sorting (n=69): time 0.01086/0.5728, allocations: 2.056 MB / 1.19 GB, free: 11.82 MB / 0.9512 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001757/0.573, allocations: 317 kB / 1.191 GB, free: 11.44 MB / 0.9512 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00275/0.5758, allocations: 1.387 MB / 1.192 GB, free: 10.04 MB / 0.9512 GB Notification: Performance of collectPreVariables (initialization): time 0.0001979/0.576, allocations: 45.7 kB / 1.192 GB, free: 9.992 MB / 0.9512 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006899/0.5767, allocations: 0.6997 MB / 1.193 GB, free: 9.285 MB / 0.9512 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003273/0.577, allocations: 244.5 kB / 1.193 GB, free: 9.043 MB / 0.9512 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004961/0.5775, allocations: 246.3 kB / 1.193 GB, free: 8.797 MB / 0.9512 GB Notification: Performance of setup shared object (initialization): time 0.000225/0.5777, allocations: 342 kB / 1.194 GB, free: 8.457 MB / 0.9512 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002066/0.5798, allocations: 0.5044 MB / 1.194 GB, free: 7.949 MB / 0.9512 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002323/0.5822, allocations: 0.8061 MB / 1.195 GB, free: 7.02 MB / 0.9512 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003748/0.5859, allocations: 1.158 MB / 1.196 GB, free: 5.766 MB / 0.9512 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.079e-05/0.5859, allocations: 4 kB / 1.196 GB, free: 5.762 MB / 0.9512 GB Notification: Performance of matching and sorting (n=117) (initialization): time 0.006796/0.5927, allocations: 1.638 MB / 1.198 GB, free: 4.105 MB / 0.9512 GB Notification: Performance of prepare postOptimizeDAE: time 4.97e-05/0.5928, allocations: 33.7 kB / 1.198 GB, free: 4.066 MB / 0.9512 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.645e-05/0.5928, allocations: 12 kB / 1.198 GB, free: 4.055 MB / 0.9512 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001457/0.5943, allocations: 370.3 kB / 1.198 GB, free: 3.695 MB / 0.9512 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001539/0.5959, allocations: 263.5 kB / 1.198 GB, free: 3.438 MB / 0.9512 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001346/0.5972, allocations: 0.8867 MB / 1.199 GB, free: 2.527 MB / 0.9512 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002719/0.6, allocations: 278.5 kB / 1.199 GB, free: 2.254 MB / 0.9512 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001777/0.6002, allocations: 55.89 kB / 1.199 GB, free: 2.199 MB / 0.9512 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002621/0.6028, allocations: 0.8081 MB / 1.2 GB, free: 1.387 MB / 0.9512 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002274/0.6051, allocations: 0.8018 MB / 1.201 GB, free: 476 kB / 0.9512 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.003917/0.609, allocations: 1.15 MB / 1.202 GB, free: 15.22 MB / 0.9669 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.01e-05/0.609, allocations: 4 kB / 1.202 GB, free: 15.22 MB / 0.9669 GB Notification: Performance of matching and sorting (n=117) (initialization_lambda0): time 0.006867/0.6159, allocations: 1.63 MB / 1.204 GB, free: 13.57 MB / 0.9669 GB Notification: Performance of prepare postOptimizeDAE: time 4.926e-05/0.616, allocations: 38.14 kB / 1.204 GB, free: 13.53 MB / 0.9669 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.283e-05/0.616, allocations: 12 kB / 1.204 GB, free: 13.52 MB / 0.9669 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001319/0.6173, allocations: 359.6 kB / 1.204 GB, free: 13.17 MB / 0.9669 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001569/0.6189, allocations: 267.5 kB / 1.204 GB, free: 12.91 MB / 0.9669 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001329/0.6203, allocations: 0.888 MB / 1.205 GB, free: 11.99 MB / 0.9669 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002844/0.6231, allocations: 239.2 kB / 1.206 GB, free: 11.76 MB / 0.9669 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001613/0.6233, allocations: 51.95 kB / 1.206 GB, free: 11.71 MB / 0.9669 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 28 * Number of states: 0 () * Number of discrete variables: 7 (N.count,$PRE.N.count,N.T_start,$PRE.N.T_start,heaPum.com.isOn,$PRE.heaPum.com.isOn,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (98): * Single equations (assignments): 96 * Array equations: 0 * Algorithm blocks: 1 * 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 {(2,17)} Notification: Performance of prepare postOptimizeDAE: time 0.0005315/0.6238, allocations: 248 kB / 1.206 GB, free: 11.46 MB / 0.9669 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007075/0.6245, allocations: 146.2 kB / 1.206 GB, free: 11.31 MB / 0.9669 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004586/0.6291, allocations: 1.231 MB / 1.207 GB, free: 10.07 MB / 0.9669 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.302e-05/0.6292, allocations: 11.98 kB / 1.207 GB, free: 10.05 MB / 0.9669 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.249e-05/0.6292, allocations: 3.938 kB / 1.207 GB, free: 10.05 MB / 0.9669 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003607/0.6328, allocations: 1.026 MB / 1.208 GB, free: 8.988 MB / 0.9669 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.008379/0.6412, allocations: 3.264 MB / 1.211 GB, free: 5.598 MB / 0.9669 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.45e-05/0.6412, allocations: 4 kB / 1.211 GB, free: 5.594 MB / 0.9669 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001071/0.6423, allocations: 160 kB / 1.211 GB, free: 5.438 MB / 0.9669 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001329/0.6437, allocations: 365.1 kB / 1.212 GB, free: 5.082 MB / 0.9669 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.806e-05/0.6438, allocations: 27.97 kB / 1.212 GB, free: 5.055 MB / 0.9669 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001206/0.645, allocations: 0.8817 MB / 1.213 GB, free: 4.148 MB / 0.9669 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.252e-06/0.645, allocations: 4 kB / 1.213 GB, free: 4.145 MB / 0.9669 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006661/0.6517, allocations: 1.898 MB / 1.215 GB, free: 2.168 MB / 0.9669 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001222/0.6529, allocations: 355 kB / 1.215 GB, free: 1.801 MB / 0.9669 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005634/0.6535, allocations: 20 kB / 1.215 GB, free: 1.781 MB / 0.9669 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002135/0.6557, allocations: 147.8 kB / 1.215 GB, free: 1.637 MB / 0.9669 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001956/0.6559, allocations: 68.23 kB / 1.215 GB, free: 1.57 MB / 0.9669 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001184/0.656, allocations: 35.97 kB / 1.215 GB, free: 1.535 MB / 0.9669 GB Notification: Performance of sorting global known variables: time 0.002121/0.6582, allocations: 0.9979 MB / 1.216 GB, free: 0.5391 MB / 0.9669 GB Notification: Performance of sort global known variables: time 3.91e-07/0.6582, allocations: 0 / 1.216 GB, free: 0.5391 MB / 0.9669 GB Notification: Performance of remove unused functions: time 0.003514/0.6617, allocations: 0.8968 MB / 1.217 GB, free: 15.64 MB / 0.9825 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 19 * Number of states: 2 (heaPum.con.vol.dynBal.U,heaPum.eva.vol.dynBal.U) * Number of discrete variables: 4 ($whenCondition1,heaPum.com.isOn,N.T_start,N.count) * Number of discrete states: 2 (N.count,heaPum.com.isOn) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (51): * Single equations (assignments): 46 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * 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 {(2,17)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001637/0.6633, allocations: 0.5433 MB / 1.218 GB, free: 15.1 MB / 0.9825 GB Notification: Performance of simCode: created initialization part: time 0.007288/0.6706, allocations: 1.98 MB / 1.219 GB, free: 13.09 MB / 0.9825 GB Notification: Performance of simCode: created event and clocks part: time 9.397e-06/0.6707, allocations: 8.125 kB / 1.22 GB, free: 13.09 MB / 0.9825 GB Notification: Performance of simCode: created simulation system equations: time 0.002083/0.6728, allocations: 0.5439 MB / 1.22 GB, free: 12.54 MB / 0.9825 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004723/0.6775, allocations: 0.8286 MB / 1.221 GB, free: 11.75 MB / 0.9825 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007343/0.6849, allocations: 3.22 MB / 1.224 GB, free: 8.441 MB / 0.9825 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001093/0.686, allocations: 1.218 MB / 1.225 GB, free: 7.191 MB / 0.9825 GB Notification: Performance of simCode: alias equations: time 0.002311/0.6883, allocations: 384 kB / 1.226 GB, free: 6.824 MB / 0.9825 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005014/0.6889, allocations: 131.3 kB / 1.226 GB, free: 6.695 MB / 0.9825 GB Notification: Performance of SimCode: time 8.71e-07/0.6889, allocations: 0 / 1.226 GB, free: 6.695 MB / 0.9825 GB Notification: Performance of Templates: time 0.5516/1.241, allocations: 38.55 MB / 1.263 GB, free: 167.2 MB / 0.9981 GB make -j1 -f Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.makefile (rm -f Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.pipe ; mkfifo Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.pipe >> ../files/Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.sim & ./Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.pipe 2>&1)