Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.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 8.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo) Running command: translateModel(Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed") translateModel(Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.74/1.74, allocations: 288.4 MB / 303.4 MB, free: 8.09 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.0009925/0.0009927, allocations: 182.4 kB / 372 MB, free: 10.22 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.572/1.572, allocations: 205.4 MB / 0.6307 GB, free: 9.965 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.000859/0.0008591, allocations: 98.34 kB / 0.7441 GB, free: 5.891 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0004132/0.0004133, allocations: 12.47 kB / 0.867 GB, free: 142.1 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2354/0.2358, allocations: 115.3 MB / 0.9796 GB, free: 27.66 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed): time 0.05396/0.2899, allocations: 64.45 MB / 1.043 GB, free: 11.04 MB / 0.6667 GB Notification: Performance of NFInst.instExpressions: time 0.01949/0.3094, allocations: 13.37 MB / 1.056 GB, free: 13.64 MB / 0.6823 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002338/0.3118, allocations: 63.56 kB / 1.056 GB, free: 13.58 MB / 0.6823 GB Notification: Performance of NFTyping.typeComponents: time 0.002255/0.3141, allocations: 0.6444 MB / 1.056 GB, free: 12.93 MB / 0.6823 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:788:36-789:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:786:36-787:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:788:36-789:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:786:36-787:54:writable] Warning: 'each' used when modifying non-array element m_flow. Notification: Performance of NFTyping.typeBindings: time 0.006192/0.3203, allocations: 1.984 MB / 1.058 GB, free: 10.95 MB / 0.6823 GB Notification: Performance of NFTyping.typeClassSections: time 0.004332/0.3246, allocations: 1.42 MB / 1.06 GB, free: 9.543 MB / 0.6823 GB Notification: Performance of NFFlatten.flatten: time 0.006627/0.3313, allocations: 5.073 MB / 1.065 GB, free: 4.457 MB / 0.6823 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002611/0.3339, allocations: 1.152 MB / 1.066 GB, free: 3.277 MB / 0.6823 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003315/0.3373, allocations: 1.377 MB / 1.067 GB, free: 1.895 MB / 0.6823 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002367/0.3397, allocations: 1.12 MB / 1.068 GB, free: 0.7695 MB / 0.6823 GB Notification: Performance of NFPackage.collectConstants: time 0.0005072/0.3402, allocations: 71.98 kB / 1.068 GB, free: 0.6992 MB / 0.6823 GB Notification: Performance of NFFlatten.collectFunctions: time 0.4062/0.7464, allocations: 1.423 MB / 1.07 GB, free: 30.41 MB / 0.6823 GB Notification: Performance of NFScalarize.scalarize: time 0.001062/0.7475, allocations: 316.4 kB / 1.07 GB, free: 30.41 MB / 0.6823 GB Notification: Performance of NFVerifyModel.verify: time 0.001038/0.7485, allocations: 400.7 kB / 1.07 GB, free: 30.38 MB / 0.6823 GB Notification: Performance of NFConvertDAE.convert: time 0.005019/0.7535, allocations: 2.585 MB / 1.073 GB, free: 30.3 MB / 0.6823 GB Notification: Performance of FrontEnd - DAE generated: time 5.561e-06/0.7536, allocations: 2.094 kB / 1.073 GB, free: 30.3 MB / 0.6823 GB Notification: Performance of FrontEnd: time 2.876e-06/0.7536, allocations: 1.25 kB / 1.073 GB, free: 30.3 MB / 0.6823 GB Notification: Performance of Transformations before backend: time 6.632e-05/0.7537, allocations: 0 / 1.073 GB, free: 30.3 MB / 0.6823 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 0.00502/0.7587, allocations: 1.935 MB / 1.075 GB, free: 29.26 MB / 0.6823 GB Notification: Performance of prepare preOptimizeDAE: time 4.48e-05/0.7587, allocations: 8.719 kB / 1.075 GB, free: 29.26 MB / 0.6823 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006111/0.7649, allocations: 0.7428 MB / 1.075 GB, free: 29.16 MB / 0.6823 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003195/0.7681, allocations: 1.498 MB / 1.077 GB, free: 28.8 MB / 0.6823 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001863/0.7683, allocations: 130.1 kB / 1.077 GB, free: 28.77 MB / 0.6823 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002453/0.7686, allocations: 118.4 kB / 1.077 GB, free: 28.77 MB / 0.6823 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004391/0.773, allocations: 1.653 MB / 1.079 GB, free: 28.51 MB / 0.6823 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.372e-05/0.773, allocations: 5 kB / 1.079 GB, free: 28.51 MB / 0.6823 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001615/0.7732, allocations: 52.06 kB / 1.079 GB, free: 28.51 MB / 0.6823 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.076e-05/0.7732, allocations: 40.36 kB / 1.079 GB, free: 28.5 MB / 0.6823 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005103/0.7784, allocations: 1.484 MB / 1.08 GB, free: 28.47 MB / 0.6823 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 0.01056/0.7889, allocations: 7.008 MB / 1.087 GB, free: 25.32 MB / 0.6823 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002192/0.7912, allocations: 0.7571 MB / 1.088 GB, free: 25.28 MB / 0.6823 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001695/0.7929, allocations: 0.5072 MB / 1.088 GB, free: 25.25 MB / 0.6823 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001076/0.794, allocations: 1.275 MB / 1.09 GB, free: 23.84 MB / 0.6823 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.089e-05/0.794, allocations: 42.88 kB / 1.09 GB, free: 23.8 MB / 0.6823 GB Notification: Performance of pre-optimization done (n=68): time 2.545e-06/0.794, allocations: 0 / 1.09 GB, free: 23.8 MB / 0.6823 GB Notification: Performance of matching and sorting (n=68): time 0.0202/0.8142, allocations: 3.106 MB / 1.093 GB, free: 23.48 MB / 0.6823 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.243e-05/0.8143, allocations: 124.1 kB / 1.093 GB, free: 23.35 MB / 0.6823 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002505/0.8168, allocations: 1.345 MB / 1.094 GB, free: 23.18 MB / 0.6823 GB Notification: Performance of collectPreVariables (initialization): time 0.0001965/0.817, allocations: 42.52 kB / 1.094 GB, free: 23.15 MB / 0.6823 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005976/0.8176, allocations: 0.6923 MB / 1.095 GB, free: 22.89 MB / 0.6823 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002486/0.8179, allocations: 243.5 kB / 1.095 GB, free: 22.73 MB / 0.6823 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.033e-05/0.818, allocations: 17.38 kB / 1.095 GB, free: 22.73 MB / 0.6823 GB Notification: Performance of setup shared object (initialization): time 7.895e-05/0.8181, allocations: 343.2 kB / 1.095 GB, free: 22.43 MB / 0.6823 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001972/0.82, allocations: 0.5142 MB / 1.096 GB, free: 22.42 MB / 0.6823 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002141/0.8222, allocations: 0.7898 MB / 1.097 GB, free: 22.11 MB / 0.6823 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001987/0.8242, allocations: 0.57 MB / 1.097 GB, free: 22.09 MB / 0.6823 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.473e-05/0.8242, allocations: 2.969 kB / 1.097 GB, free: 22.09 MB / 0.6823 GB Notification: Performance of matching and sorting (n=114) (initialization): time 0.01229/0.8365, allocations: 2.154 MB / 1.099 GB, free: 21.92 MB / 0.6823 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001523/0.8367, allocations: 272.8 kB / 1.1 GB, free: 21.6 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.532e-05/0.8367, allocations: 7.062 kB / 1.1 GB, free: 21.6 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001789/0.8385, allocations: 492.8 kB / 1.1 GB, free: 21.56 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001547/0.8401, allocations: 264.6 kB / 1.1 GB, free: 21.56 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001575/0.8417, allocations: 1.001 MB / 1.101 GB, free: 21.02 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002982/0.8447, allocations: 285 kB / 1.102 GB, free: 20.95 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001828/0.8449, allocations: 55.38 kB / 1.102 GB, free: 20.95 MB / 0.6823 GB Notification: Performance of prepare postOptimizeDAE: time 1.378e-05/0.8449, allocations: 7.031 kB / 1.102 GB, free: 20.95 MB / 0.6823 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01195/0.8569, allocations: 1.994 MB / 1.104 GB, free: 20.88 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.18e-05/0.8569, allocations: 13.38 kB / 1.104 GB, free: 20.88 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001566/0.8585, allocations: 485.8 kB / 1.104 GB, free: 20.84 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001458/0.86, allocations: 263.3 kB / 1.104 GB, free: 20.83 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001428/0.8614, allocations: 0.9984 MB / 1.105 GB, free: 20.29 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002472/0.8639, allocations: 252.8 kB / 1.105 GB, free: 20.23 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001289/0.8641, allocations: 53.98 kB / 1.106 GB, free: 20.23 MB / 0.6823 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 28 * Number of states: 0 () * Number of discrete variables: 2 ($PRE.heaPum.com.isOn,heaPum.com.isOn) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (94): * Single equations (assignments): 93 * 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: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {2 19} Notification: Performance of prepare postOptimizeDAE: time 0.0009482/0.865, allocations: 452 kB / 1.106 GB, free: 20.04 MB / 0.6823 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003075/0.8653, allocations: 144.9 kB / 1.106 GB, free: 19.96 MB / 0.6823 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003958/0.8693, allocations: 1.341 MB / 1.107 GB, free: 19.84 MB / 0.6823 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.491e-05/0.8693, allocations: 6.75 kB / 1.107 GB, free: 19.84 MB / 0.6823 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.572e-06/0.8693, allocations: 1.469 kB / 1.107 GB, free: 19.84 MB / 0.6823 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.00348/0.8728, allocations: 1.137 MB / 1.109 GB, free: 19.65 MB / 0.6823 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007461/0.8803, allocations: 3.08 MB / 1.112 GB, free: 19.09 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.072e-05/0.8803, allocations: 4 kB / 1.112 GB, free: 19.09 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009253/0.8813, allocations: 151.8 kB / 1.112 GB, free: 19.09 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001662/0.883, allocations: 488.5 kB / 1.112 GB, free: 19.05 MB / 0.6823 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.53e-05/0.883, allocations: 28.97 kB / 1.112 GB, free: 19.05 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001544/0.8846, allocations: 0.9883 MB / 1.113 GB, free: 18.51 MB / 0.6823 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.805e-06/0.8846, allocations: 10.12 kB / 1.113 GB, free: 18.51 MB / 0.6823 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006005/0.8906, allocations: 1.971 MB / 1.115 GB, free: 18.09 MB / 0.6823 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001018/0.8917, allocations: 392.3 kB / 1.115 GB, free: 17.92 MB / 0.6823 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000226/0.8919, allocations: 23.95 kB / 1.115 GB, free: 17.91 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001812/0.8937, allocations: 158.9 kB / 1.116 GB, free: 17.9 MB / 0.6823 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001046/0.8938, allocations: 62.06 kB / 1.116 GB, free: 17.89 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.603e-05/0.8939, allocations: 43.09 kB / 1.116 GB, free: 17.89 MB / 0.6823 GB Notification: Performance of sorting global known variables: time 0.001642/0.8956, allocations: 0.967 MB / 1.117 GB, free: 17.78 MB / 0.6823 GB Notification: Performance of sort global known variables: time 2.2e-07/0.8956, allocations: 1.031 kB / 1.117 GB, free: 17.78 MB / 0.6823 GB Notification: Performance of remove unused functions: time 0.002871/0.8985, allocations: 0.8837 MB / 1.118 GB, free: 17.66 MB / 0.6823 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: 1 (heaPum.com.isOn) * Number of discrete states: 1 (heaPum.com.isOn) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (48): * Single equations (assignments): 45 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {2 19} Notification: Performance of Backend phase and start with SimCode phase: time 0.001256/0.8997, allocations: 0.5281 MB / 1.118 GB, free: 17.48 MB / 0.6823 GB Notification: Performance of simCode: created initialization part: time 0.006421/0.9062, allocations: 1.858 MB / 1.12 GB, free: 17.39 MB / 0.6823 GB Notification: Performance of simCode: created event and clocks part: time 7.664e-06/0.9062, allocations: 1.125 kB / 1.12 GB, free: 17.39 MB / 0.6823 GB Notification: Performance of simCode: created simulation system equations: time 0.0018/0.908, allocations: 0.5343 MB / 1.12 GB, free: 17.29 MB / 0.6823 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004407/0.9124, allocations: 0.7944 MB / 1.121 GB, free: 17.04 MB / 0.6823 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005767/0.9182, allocations: 3.142 MB / 1.124 GB, free: 15.22 MB / 0.6823 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000598/0.9188, allocations: 1.208 MB / 1.125 GB, free: 14.31 MB / 0.6823 GB Notification: Performance of simCode: alias equations: time 0.001931/0.9208, allocations: 374.4 kB / 1.126 GB, free: 14.13 MB / 0.6823 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003207/0.9211, allocations: 127.1 kB / 1.126 GB, free: 14.1 MB / 0.6823 GB Notification: Performance of SimCode: time 7.32e-07/0.9211, allocations: 0 / 1.126 GB, free: 14.1 MB / 0.6823 GB Notification: Performance of Templates: time 0.05171/0.9728, allocations: 36.39 MB / 1.161 GB, free: 4.02 MB / 0.698 GB make -j1 -f Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed.makefile (rm -f Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed.pipe ; mkfifo Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed.pipe ; head -c 1048576 < Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed.pipe >> ../files/Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed.sim & ./Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.8.0.x_Buildings.Fluid.HeatPumps.Validation.ScrollWaterToWater_VariableSpeed.pipe 2>&1)