Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.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/BuildSysPro 3.6.0/package.mo", uses=false)
Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow")
translateModel(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.000871/0.000871, allocations: 91.84 kB / 15.06 MB, free: 1.098 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0008812/0.0008812, allocations: 172.7 kB / 15.95 MB, free: 208 kB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.157/1.157, allocations: 223.3 MB / 240 MB, free: 5.309 MB / 190.1 MB
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo.
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/package.mo): time 0.851/0.851, allocations: 143.2 MB / 434.2 MB, free: 13.68 MB / 350.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.0002587/0.0002587, allocations: 12 kB / 0.5158 GB, free: 11.5 MB / 430.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1239/0.1242, allocations: 83.41 MB / 0.5972 GB, free: 8.043 MB / 0.4981 GB
Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow): time 0.3607/0.4849, allocations: 173.4 MB / 0.7665 GB, free: 15.16 MB / 0.5919 GB
Notification: Performance of NFInst.instExpressions: time 0.007024/0.492, allocations: 5.384 MB / 0.7718 GB, free: 9.762 MB / 0.5919 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0004512/0.4924, allocations: 31.75 kB / 0.7718 GB, free: 9.73 MB / 0.5919 GB
Notification: Performance of NFTyping.typeComponents: time 0.0008828/0.4933, allocations: 397.5 kB / 0.7722 GB, free: 9.34 MB / 0.5919 GB
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Fluid/Sources.mo:784:36-785:54:writable] Warning: 'each' used when modifying non-array element m_flow.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Fluid/Sources.mo:782:36-783:54:writable] Warning: 'each' used when modifying non-array element m_flow.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Fluid/Sources.mo:784:36-785:54:writable] Warning: 'each' used when modifying non-array element m_flow.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Fluid/Sources.mo:782:36-783:54:writable] Warning: 'each' used when modifying non-array element m_flow.
Notification: Performance of NFTyping.typeBindings: time 0.002614/0.496, allocations: 1.372 MB / 0.7736 GB, free: 7.961 MB / 0.5919 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001864/0.4978, allocations: 0.8457 MB / 0.7744 GB, free: 7.129 MB / 0.5919 GB
Notification: Performance of NFFlatten.flatten: time 0.00311/0.5009, allocations: 3.439 MB / 0.7777 GB, free: 3.684 MB / 0.5919 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.00094/0.5019, allocations: 0.7999 MB / 0.7785 GB, free: 2.879 MB / 0.5919 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001127/0.503, allocations: 0.879 MB / 0.7794 GB, free: 1.996 MB / 0.5919 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0009946/0.504, allocations: 0.9107 MB / 0.7803 GB, free: 1.082 MB / 0.5919 GB
Notification: Performance of NFPackage.collectConstants: time 9.636e-05/0.5041, allocations: 52 kB / 0.7803 GB, free: 1.031 MB / 0.5919 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001473/0.5056, allocations: 0.7015 MB / 0.781 GB, free: 336 kB / 0.5919 GB
Notification: Performance of NFScalarize.scalarize: time 0.0004524/0.5061, allocations: 0.4909 MB / 0.7815 GB, free: 15.83 MB / 0.6075 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002321/0.5063, allocations: 281 kB / 0.7817 GB, free: 15.55 MB / 0.6075 GB
Notification: Performance of NFConvertDAE.convert: time 0.001433/0.5078, allocations: 1.707 MB / 0.7834 GB, free: 13.84 MB / 0.6075 GB
Notification: Performance of FrontEnd - DAE generated: time 3.687e-06/0.5078, allocations: 0 / 0.7834 GB, free: 13.84 MB / 0.6075 GB
Notification: Performance of FrontEnd: time 3.647e-06/0.5078, allocations: 0 / 0.7834 GB, free: 13.84 MB / 0.6075 GB
Notification: Performance of Transformations before backend: time 1.438e-05/0.5078, allocations: 7.875 kB / 0.7834 GB, free: 13.84 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: 248
 * Number of variables: 248
Notification: Performance of Generate backend data structure: time 0.001906/0.5097, allocations: 1.375 MB / 0.7848 GB, free: 12.41 MB / 0.6075 GB
Notification: Performance of prepare preOptimizeDAE: time 2.838e-05/0.5098, allocations: 8.031 kB / 0.7848 GB, free: 12.41 MB / 0.6075 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001765/0.5115, allocations: 334.2 kB / 0.7851 GB, free: 12.08 MB / 0.6075 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001119/0.5127, allocations: 0.8478 MB / 0.7859 GB, free: 11.19 MB / 0.6075 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.851e-05/0.5127, allocations: 70 kB / 0.786 GB, free: 11.12 MB / 0.6075 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001268/0.5129, allocations: 96 kB / 0.7861 GB, free: 11.02 MB / 0.6075 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001623/0.5145, allocations: 1.096 MB / 0.7871 GB, free: 9.922 MB / 0.6075 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.01e-05/0.5145, allocations: 0 / 0.7871 GB, free: 9.922 MB / 0.6075 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.216e-05/0.5146, allocations: 40 kB / 0.7872 GB, free: 9.883 MB / 0.6075 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.191e-05/0.5147, allocations: 41.98 kB / 0.7872 GB, free: 9.844 MB / 0.6075 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001483/0.5161, allocations: 0.9993 MB / 0.7882 GB, free: 8.84 MB / 0.6075 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 0.004995/0.5211, allocations: 4.255 MB / 0.7924 GB, free: 4.289 MB / 0.6075 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.000798/0.522, allocations: 0.5991 MB / 0.7929 GB, free: 3.684 MB / 0.6075 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0004725/0.5224, allocations: 343.1 kB / 0.7933 GB, free: 3.348 MB / 0.6075 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0001671/0.5226, allocations: 113.5 kB / 0.7934 GB, free: 3.219 MB / 0.6075 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.782e-05/0.5227, allocations: 43 kB / 0.7934 GB, free: 3.164 MB / 0.6075 GB
Notification: Performance of pre-optimization done (n=53): time 1.523e-06/0.5227, allocations: 0 / 0.7934 GB, free: 3.164 MB / 0.6075 GB
Notification: Performance of matching and sorting (n=55): time 0.003443/0.5261, allocations: 2.224 MB / 0.7956 GB, free: 0.8242 MB / 0.6075 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.855e-05/0.5261, allocations: 63.91 kB / 0.7957 GB, free: 0.75 MB / 0.6075 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009112/0.5271, allocations: 0.8687 MB / 0.7965 GB, free: 15.88 MB / 0.6231 GB
Notification: Performance of collectPreVariables (initialization): time 4.681e-05/0.5271, allocations: 41.7 kB / 0.7965 GB, free: 15.83 MB / 0.6231 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0003307/0.5275, allocations: 0.5146 MB / 0.797 GB, free: 15.3 MB / 0.6231 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001483/0.5276, allocations: 197.2 kB / 0.7972 GB, free: 15.11 MB / 0.6231 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 3.272e-05/0.5277, allocations: 12 kB / 0.7972 GB, free: 15.1 MB / 0.6231 GB
Notification: Performance of setup shared object (initialization): time 0.0001026/0.5278, allocations: 337.9 kB / 0.7976 GB, free: 14.76 MB / 0.6231 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004375/0.5282, allocations: 285.8 kB / 0.7978 GB, free: 14.48 MB / 0.6231 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005268/0.5287, allocations: 448.7 kB / 0.7983 GB, free: 14 MB / 0.6231 GB
Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: volDyn.dynBal.medium.p = volDyn.dynBal.p_start (bou.p = volDyn.dynBal.p_start)
Notification: Performance of analyzeInitialSystem (initialization): time 0.002579/0.5313, allocations: 1.099 MB / 0.7993 GB, free: 12.88 MB / 0.6231 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.124e-06/0.5313, allocations: 0 / 0.7993 GB, free: 12.88 MB / 0.6231 GB
Notification: Performance of matching and sorting (n=84) (initialization): time 0.001324/0.5327, allocations: 0.934 MB / 0.8002 GB, free: 11.93 MB / 0.6231 GB
Notification: Performance of prepare postOptimizeDAE: time 1.66e-05/0.5327, allocations: 9.094 kB / 0.8003 GB, free: 11.92 MB / 0.6231 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.137e-06/0.5327, allocations: 5.188 kB / 0.8003 GB, free: 11.91 MB / 0.6231 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0001809/0.5329, allocations: 94.45 kB / 0.8004 GB, free: 11.81 MB / 0.6231 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006374/0.5335, allocations: 175.8 kB / 0.8005 GB, free: 11.64 MB / 0.6231 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002867/0.5364, allocations: 4.285 MB / 0.8047 GB, free: 6.965 MB / 0.6231 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007081/0.5371, allocations: 79.95 kB / 0.8048 GB, free: 6.891 MB / 0.6231 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.669e-05/0.5372, allocations: 24 kB / 0.8048 GB, free: 6.867 MB / 0.6231 GB
Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization sytem:
         volDyn.dynBal.medium.p = volDyn.dynBal.p_start.
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 17
 * 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 (80):
 * Single equations (assignments): 77
 * 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: 3
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 3 {1 1,1 1,1 2}
Notification: Performance of prepare postOptimizeDAE: time 0.0003937/0.5376, allocations: 354 kB / 0.8051 GB, free: 6.512 MB / 0.6231 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001296/0.5377, allocations: 94.88 kB / 0.8052 GB, free: 6.418 MB / 0.6231 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001813/0.5379, allocations: 109.2 kB / 0.8053 GB, free: 6.305 MB / 0.6231 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.901e-06/0.5379, allocations: 8 kB / 0.8053 GB, free: 6.297 MB / 0.6231 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.445e-06/0.5379, allocations: 0 / 0.8053 GB, free: 6.297 MB / 0.6231 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0009836/0.5389, allocations: 0.7769 MB / 0.8061 GB, free: 5.469 MB / 0.6231 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002669/0.5416, allocations: 1.992 MB / 0.808 GB, free: 3.379 MB / 0.6231 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.38e-06/0.5416, allocations: 7.938 kB / 0.8081 GB, free: 3.371 MB / 0.6231 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006204/0.5422, allocations: 152.2 kB / 0.8082 GB, free: 3.223 MB / 0.6231 GB
Notification: Performance of postOpt tearingSystem (simulation): time 7.758e-05/0.5423, allocations: 44.83 kB / 0.8082 GB, free: 3.176 MB / 0.6231 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.781e-05/0.5424, allocations: 19.98 kB / 0.8083 GB, free: 3.156 MB / 0.6231 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00101/0.5434, allocations: 1.48 MB / 0.8097 GB, free: 1.547 MB / 0.6231 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.18e-06/0.5434, allocations: 7.938 kB / 0.8097 GB, free: 1.539 MB / 0.6231 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001511/0.5449, allocations: 1.226 MB / 0.8109 GB, free: 260 kB / 0.6231 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0003303/0.5453, allocations: 255.9 kB / 0.8112 GB, free: 15.98 MB / 0.6387 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001102/0.5454, allocations: 16 kB / 0.8112 GB, free: 15.97 MB / 0.6387 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006525/0.5461, allocations: 70.05 kB / 0.8112 GB, free: 15.9 MB / 0.6387 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 8.863e-05/0.5462, allocations: 51.83 kB / 0.8113 GB, free: 15.85 MB / 0.6387 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.745e-05/0.5462, allocations: 31.8 kB / 0.8113 GB, free: 15.82 MB / 0.6387 GB
Notification: Performance of sorting global known variables: time 0.0006687/0.5469, allocations: 0.6083 MB / 0.8119 GB, free: 15.22 MB / 0.6387 GB
Notification: Performance of sort global known variables: time 1.533e-06/0.5469, allocations: 0 / 0.8119 GB, free: 15.22 MB / 0.6387 GB
Notification: Performance of remove unused functions: time 0.00077/0.5477, allocations: 311.9 kB / 0.8122 GB, free: 14.91 MB / 0.6387 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 14
 * Number of states: 3 (volDyn.dynBal.medium.Xi[1],volDyn.dynBal.U,volDyn.dynBal.mC[1])
 * 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 (53):
 * Single equations (assignments): 52
 * 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 {1 2}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0003658/0.548, allocations: 197.8 kB / 0.8124 GB, free: 14.73 MB / 0.6387 GB
Notification: Performance of simCode: created initialization part: time 0.001305/0.5494, allocations: 1.002 MB / 0.8134 GB, free: 13.68 MB / 0.6387 GB
Notification: Performance of simCode: created event and clocks part: time 3.025e-06/0.5494, allocations: 7.938 kB / 0.8134 GB, free: 13.68 MB / 0.6387 GB
Notification: Performance of simCode: created simulation system equations: time 0.0005665/0.5499, allocations: 455.9 kB / 0.8138 GB, free: 13.22 MB / 0.6387 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002315/0.5523, allocations: 0.6219 MB / 0.8144 GB, free: 12.61 MB / 0.6387 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00295/0.5552, allocations: 2.507 MB / 0.8169 GB, free: 10.04 MB / 0.6387 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000698/0.5559, allocations: 1.174 MB / 0.818 GB, free: 8.84 MB / 0.6387 GB
Notification: Performance of simCode: alias equations: time 0.0008046/0.5568, allocations: 252.5 kB / 0.8183 GB, free: 8.594 MB / 0.6387 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001816/0.5569, allocations: 75.42 kB / 0.8183 GB, free: 8.52 MB / 0.6387 GB
Notification: Performance of SimCode: time 2.01e-07/0.5569, allocations: 0 / 0.8183 GB, free: 8.52 MB / 0.6387 GB
Notification: Performance of Templates: time 0.02895/0.5859, allocations: 20.58 MB / 0.8384 GB, free: 4.285 MB / 0.6544 GB
make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.makefile
(rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow  -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.pipe 2>&1)