Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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: "" <> buildModelFMU(IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortWater",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortWater",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007932/0.0007933, allocations: 98.58 kB / 16.02 MB, free: 80 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0008711/0.0008711, allocations: 181 kB / 16.92 MB, free: 6.688 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.358/1.358, allocations: 223.3 MB / 241 MB, free: 5.312 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6891/0.6891, allocations: 115.5 MB / 407.6 MB, free: 2.66 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003198/0.0003197, allocations: 8.281 kB / 496 MB, free: 6.246 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1685/0.1688, allocations: 77.52 MB / 0.56 GB, free: 8.926 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater): time 0.02918/0.198, allocations: 22.61 MB / 0.5821 GB, free: 2.23 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.3753/0.5734, allocations: 6.79 MB / 0.5887 GB, free: 10.54 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001929/0.5754, allocations: 26.59 kB / 0.5888 GB, free: 10.54 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.00136/0.5767, allocations: 267.9 kB / 0.589 GB, free: 10.54 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.003802/0.5806, allocations: 0.8365 MB / 0.5898 GB, free: 10.51 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002411/0.583, allocations: 0.6841 MB / 0.5905 GB, free: 10.49 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.01017/0.5932, allocations: 4.677 MB / 0.5951 GB, free: 10.16 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.002436/0.5956, allocations: 1.072 MB / 0.5961 GB, free: 9.949 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.004086/0.5998, allocations: 0.9411 MB / 0.597 GB, free: 9.777 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002754/0.6025, allocations: 0.8951 MB / 0.5979 GB, free: 9.562 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001906/0.6027, allocations: 37.94 kB / 0.598 GB, free: 9.562 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002983/0.6057, allocations: 0.7092 MB / 0.5986 GB, free: 9.504 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 0.000427/0.6062, allocations: 220 kB / 0.5989 GB, free: 9.457 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001188/0.6074, allocations: 0.5724 MB / 0.5994 GB, free: 9.242 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.003892/0.6113, allocations: 1.814 MB / 0.6012 GB, free: 8.984 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 6.352e-06/0.6113, allocations: 0.7812 kB / 0.6012 GB, free: 8.984 MB / 446.1 MB Notification: Performance of FrontEnd: time 2.905e-06/0.6113, allocations: 0 / 0.6012 GB, free: 8.984 MB / 446.1 MB Notification: Performance of Transformations before backend: time 4e-05/0.6114, allocations: 0.5938 kB / 0.6012 GB, free: 8.984 MB / 446.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 183 * Number of variables: 183 Notification: Performance of Generate backend data structure: time 0.002959/0.6143, allocations: 1.303 MB / 0.6025 GB, free: 24.2 MB / 462.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.085e-05/0.6144, allocations: 17.59 kB / 0.6025 GB, free: 24.2 MB / 462.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002063/0.6146, allocations: 125.2 kB / 0.6026 GB, free: 24.16 MB / 462.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004935/0.6151, allocations: 139.5 kB / 0.6027 GB, free: 24.09 MB / 462.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002362/0.6175, allocations: 1.193 MB / 0.6039 GB, free: 23.72 MB / 462.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.765e-05/0.6176, allocations: 59.69 kB / 0.604 GB, free: 23.71 MB / 462.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001657/0.6177, allocations: 82.83 kB / 0.604 GB, free: 23.71 MB / 462.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001988/0.6197, allocations: 1.039 MB / 0.605 GB, free: 23.54 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.991e-05/0.6198, allocations: 2.031 kB / 0.605 GB, free: 23.54 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001012/0.6199, allocations: 30.84 kB / 0.6051 GB, free: 23.54 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.14e-05/0.6199, allocations: 29.95 kB / 0.6051 GB, free: 23.54 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001378/0.6213, allocations: 0.7587 MB / 0.6058 GB, free: 23.38 MB / 462.1 MB 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 0.005515/0.6268, allocations: 4.619 MB / 0.6104 GB, free: 19.98 MB / 462.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0005824/0.6274, allocations: 402.2 kB / 0.6107 GB, free: 19.84 MB / 462.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.000378/0.6278, allocations: 268.9 kB / 0.611 GB, free: 19.76 MB / 462.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0003234/0.6282, allocations: 427.7 kB / 0.6114 GB, free: 19.29 MB / 462.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.848e-05/0.6282, allocations: 38.42 kB / 0.6114 GB, free: 19.24 MB / 462.1 MB Notification: Performance of pre-optimization done (n=40): time 3.146e-06/0.6282, allocations: 0 / 0.6114 GB, free: 19.24 MB / 462.1 MB Notification: Performance of matching and sorting (n=40): time 0.002002/0.6302, allocations: 0.8706 MB / 0.6123 GB, free: 18.84 MB / 462.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.021e-05/0.6303, allocations: 54.97 kB / 0.6123 GB, free: 18.78 MB / 462.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001329/0.6316, allocations: 0.9172 MB / 0.6132 GB, free: 18.28 MB / 462.1 MB Notification: Performance of collectPreVariables (initialization): time 6.223e-05/0.6317, allocations: 41.7 kB / 0.6133 GB, free: 18.24 MB / 462.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004216/0.6321, allocations: 0.5042 MB / 0.6138 GB, free: 17.79 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001619/0.6323, allocations: 145.1 kB / 0.6139 GB, free: 17.67 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 7.611e-05/0.6323, allocations: 51.88 kB / 0.614 GB, free: 17.63 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 0.0001424/0.6325, allocations: 333.8 kB / 0.6143 GB, free: 17.31 MB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003202/0.6328, allocations: 226 kB / 0.6145 GB, free: 17.2 MB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004548/0.6333, allocations: 435.3 kB / 0.6149 GB, free: 16.84 MB / 462.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008246/0.6341, allocations: 0.6671 MB / 0.6156 GB, free: 16.37 MB / 462.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.843e-06/0.6341, allocations: 2.406 kB / 0.6156 GB, free: 16.37 MB / 462.1 MB Notification: Performance of matching and sorting (n=70) (initialization): time 0.001436/0.6356, allocations: 0.8113 MB / 0.6164 GB, free: 15.95 MB / 462.1 MB Notification: Performance of prepare postOptimizeDAE: time 0.0001708/0.6357, allocations: 256.7 kB / 0.6166 GB, free: 15.63 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.259e-05/0.6358, allocations: 5.531 kB / 0.6166 GB, free: 15.63 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004249/0.6362, allocations: 87.72 kB / 0.6167 GB, free: 15.59 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000382/0.6366, allocations: 110.7 kB / 0.6168 GB, free: 15.57 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005121/0.6371, allocations: 0.6347 MB / 0.6174 GB, free: 14.98 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009128/0.638, allocations: 105 kB / 0.6175 GB, free: 14.92 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.134e-05/0.6381, allocations: 34.17 kB / 0.6175 GB, free: 14.91 MB / 462.1 MB Notification: Performance of prepare postOptimizeDAE: time 9.698e-06/0.6381, allocations: 7.938 kB / 0.6176 GB, free: 14.91 MB / 462.1 MB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001006/0.6391, allocations: 0.6725 MB / 0.6182 GB, free: 14.57 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.858e-06/0.6392, allocations: 9.625 kB / 0.6182 GB, free: 14.57 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001548/0.6393, allocations: 66 kB / 0.6183 GB, free: 14.54 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003334/0.6397, allocations: 114.2 kB / 0.6184 GB, free: 14.51 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001682/0.6414, allocations: 1.725 MB / 0.6201 GB, free: 12.85 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008013/0.6422, allocations: 91.92 kB / 0.6202 GB, free: 12.8 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.254e-05/0.6422, allocations: 25.34 kB / 0.6202 GB, free: 12.8 MB / 462.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 25 * 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 (64): * Single equations (assignments): 63 * 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 {(1,6)} Notification: Performance of prepare postOptimizeDAE: time 0.001012/0.6433, allocations: 490.9 kB / 0.6207 GB, free: 12.44 MB / 462.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002048/0.6435, allocations: 90.62 kB / 0.6207 GB, free: 12.39 MB / 462.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001215/0.6447, allocations: 0.6479 MB / 0.6214 GB, free: 12.04 MB / 462.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.333e-05/0.6447, allocations: 4.781 kB / 0.6214 GB, free: 12.04 MB / 462.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.114e-06/0.6447, allocations: 0 / 0.6214 GB, free: 12.04 MB / 462.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0008917/0.6456, allocations: 0.8284 MB / 0.6222 GB, free: 11.36 MB / 462.1 MB 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 postOpt removeSimpleEquations (simulation): time 0.002768/0.6484, allocations: 1.675 MB / 0.6238 GB, free: 10.23 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.77e-06/0.6484, allocations: 0 / 0.6238 GB, free: 10.23 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003313/0.6488, allocations: 89.31 kB / 0.6239 GB, free: 10.2 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001243/0.6489, allocations: 45.19 kB / 0.624 GB, free: 10.18 MB / 462.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.324e-05/0.6489, allocations: 11.5 kB / 0.624 GB, free: 10.17 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0003884/0.6493, allocations: 0.5664 MB / 0.6245 GB, free: 9.613 MB / 462.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.967e-06/0.6493, allocations: 1.875 kB / 0.6245 GB, free: 9.613 MB / 462.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001324/0.6507, allocations: 0.9554 MB / 0.6255 GB, free: 9.035 MB / 462.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0005182/0.6512, allocations: 262.2 kB / 0.6257 GB, free: 8.824 MB / 462.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.953e-05/0.6513, allocations: 12.06 kB / 0.6257 GB, free: 8.816 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000643/0.652, allocations: 78.14 kB / 0.6258 GB, free: 8.773 MB / 462.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.037e-05/0.652, allocations: 29.66 kB / 0.6258 GB, free: 8.758 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.571e-05/0.6521, allocations: 27.09 kB / 0.6258 GB, free: 8.746 MB / 462.1 MB Notification: Performance of sorting global known variables: time 0.001002/0.6531, allocations: 0.6404 MB / 0.6265 GB, free: 8.395 MB / 462.1 MB Notification: Performance of sort global known variables: time 1.5e-07/0.6531, allocations: 1.781 kB / 0.6265 GB, free: 8.395 MB / 462.1 MB Notification: Performance of remove unused functions: time 0.002091/0.6552, allocations: 0.5643 MB / 0.627 GB, free: 8.281 MB / 462.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 3 (vol[1].dynBal.U,vol[2].dynBal.U,vol[3].dynBal.U) * 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 (39): * Single equations (assignments): 36 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * 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 {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002114/0.6573, allocations: 1.655 MB / 0.6286 GB, free: 7.121 MB / 462.1 MB Notification: Performance of simCode: created initialization part: time 0.001725/0.6591, allocations: 1 MB / 0.6296 GB, free: 6.609 MB / 462.1 MB Notification: Performance of simCode: created event and clocks part: time 4.548e-06/0.6591, allocations: 0.6562 kB / 0.6296 GB, free: 6.609 MB / 462.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0003453/0.6594, allocations: 254.6 kB / 0.6299 GB, free: 6.492 MB / 462.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003089/0.6625, allocations: 0.5652 MB / 0.6304 GB, free: 6.23 MB / 462.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01317/0.6757, allocations: 8.199 MB / 0.6384 GB, free: 14.19 MB / 478.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008626/0.6766, allocations: 1.224 MB / 0.6396 GB, free: 12.93 MB / 478.1 MB Notification: Performance of simCode: alias equations: time 0.001473/0.6781, allocations: 452.3 kB / 0.64 GB, free: 12.49 MB / 478.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005212/0.6786, allocations: 367.2 kB / 0.6404 GB, free: 12.13 MB / 478.1 MB Notification: Performance of SimCode: time 9.42e-07/0.6787, allocations: 4 kB / 0.6404 GB, free: 12.13 MB / 478.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05506/0.7337, allocations: 27.08 MB / 0.6668 GB, free: 1.555 MB / 494.1 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002429/0.734, allocations: 318.6 kB / 0.6672 GB, free: 1.164 MB / 494.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 2.595/3.329, allocations: 4.062 kB / 0.6672 GB, free: 1.16 MB / 494.1 MB (rm -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortWater_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortWater.fmu > IBPSA_latest_IBPSA.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.pipe 2>&1)