Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.MixingVolumes.Validation.MixingVolume.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/IDEAS 3.0.0/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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: "" <> buildModelFMU(IDEAS.Fluid.MixingVolumes.Validation.MixingVolume,fileNamePrefix="IDEAS_IDEAS_Fluid_MixingVolumes_Validation_MixingVolume",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.MixingVolumes.Validation.MixingVolume,fileNamePrefix="IDEAS_IDEAS_Fluid_MixingVolumes_Validation_MixingVolume",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 0.001221/0.001221, allocations: 111.3 kB / 15.23 MB, free: 0.6602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001427/0.001427, allocations: 193.1 kB / 16.13 MB, free: 6.668 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.173/1.173, allocations: 222.9 MB / 239.8 MB, free: 4.613 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.6673/0.6673, allocations: 132.2 MB / 422.1 MB, free: 2.035 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001136/0.001136, allocations: 59.75 kB / 0.5012 GB, free: 4.254 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3222/0.3234, allocations: 80.2 MB / 0.5795 GB, free: 4.57 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.MixingVolumes.Validation.MixingVolume): time 0.2069/0.5304, allocations: 240.5 MB / 0.8143 GB, free: 496 kB / 0.6387 GB Notification: Performance of NFInst.instExpressions: time 0.2966/0.827, allocations: 16.07 MB / 0.83 GB, free: 1.914 MB / 0.6387 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002547/0.8296, allocations: 75.64 kB / 0.8301 GB, free: 1.914 MB / 0.6387 GB Notification: Performance of NFTyping.typeComponents: time 0.002766/0.8324, allocations: 1.02 MB / 0.8311 GB, free: 1.914 MB / 0.6387 GB Notification: Performance of NFTyping.typeBindings: time 0.008847/0.8412, allocations: 3.596 MB / 0.8346 GB, free: 1.738 MB / 0.6387 GB Notification: Performance of NFTyping.typeClassSections: time 0.004659/0.8459, allocations: 1.613 MB / 0.8362 GB, free: 1.695 MB / 0.6387 GB Notification: Performance of NFFlatten.flatten: time 0.008025/0.854, allocations: 7.411 MB / 0.8434 GB, free: 1.691 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002252/0.8562, allocations: 1.415 MB / 0.8448 GB, free: 1.535 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004842/0.8611, allocations: 2.339 MB / 0.8471 GB, free: 1.504 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00355/0.8646, allocations: 1.782 MB / 0.8488 GB, free: 1.492 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.0004808/0.8651, allocations: 101.8 kB / 0.8489 GB, free: 1.492 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005493/0.8706, allocations: 3.147 MB / 0.852 GB, free: 1.461 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.00104/0.8717, allocations: 0.7029 MB / 0.8527 GB, free: 1.461 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.001667/0.8734, allocations: 1.069 MB / 0.8537 GB, free: 1.461 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.004617/0.878, allocations: 3.649 MB / 0.8573 GB, free: 1.062 MB / 0.6387 GB Notification: Performance of FrontEnd - DAE generated: time 3.567e-06/0.878, allocations: 0 / 0.8573 GB, free: 1.062 MB / 0.6387 GB Notification: Performance of FrontEnd: time 1.002e-06/0.878, allocations: 0 / 0.8573 GB, free: 1.062 MB / 0.6387 GB Notification: Performance of Transformations before backend: time 3.413e-05/0.8781, allocations: 0 / 0.8573 GB, free: 1.062 MB / 0.6387 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 363 * Number of variables: 363 Notification: Performance of Generate backend data structure: time 0.003808/0.8819, allocations: 2.498 MB / 0.8597 GB, free: 15.86 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 3.608e-05/0.8819, allocations: 8.656 kB / 0.8597 GB, free: 15.86 MB / 0.6544 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000238/0.8822, allocations: 217.9 kB / 0.8599 GB, free: 15.82 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002853/0.885, allocations: 0.503 MB / 0.8604 GB, free: 15.7 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001945/0.887, allocations: 1.274 MB / 0.8617 GB, free: 15.25 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001355/0.8871, allocations: 176.6 kB / 0.8618 GB, free: 15.19 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001797/0.8873, allocations: 156 kB / 0.862 GB, free: 15.19 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002499/0.8898, allocations: 1.735 MB / 0.8637 GB, free: 14.96 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.342e-05/0.8899, allocations: 10.06 kB / 0.8637 GB, free: 14.96 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001289/0.89, allocations: 58.81 kB / 0.8637 GB, free: 14.96 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.491e-05/0.8901, allocations: 64.05 kB / 0.8638 GB, free: 14.95 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002398/0.8925, allocations: 1.364 MB / 0.8651 GB, free: 14.94 MB / 0.6544 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 0.008873/0.9014, allocations: 8.178 MB / 0.8731 GB, free: 10.07 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001241/0.9026, allocations: 0.8986 MB / 0.874 GB, free: 10.03 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007229/0.9034, allocations: 0.5356 MB / 0.8745 GB, free: 10.02 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005776/0.9039, allocations: 325.5 kB / 0.8748 GB, free: 9.734 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.849e-05/0.904, allocations: 49.53 kB / 0.8749 GB, free: 9.691 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=96): time 2.535e-06/0.904, allocations: 0 / 0.8749 GB, free: 9.691 MB / 0.6544 GB Notification: Performance of matching and sorting (n=102): time 0.006171/0.9102, allocations: 3.112 MB / 0.8779 GB, free: 9.059 MB / 0.6544 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.394e-05/0.9102, allocations: 62.97 kB / 0.878 GB, free: 8.996 MB / 0.6544 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001281/0.9115, allocations: 1.26 MB / 0.8792 GB, free: 8.828 MB / 0.6544 GB Notification: Performance of collectPreVariables (initialization): time 8.464e-05/0.9116, allocations: 52.33 kB / 0.8793 GB, free: 8.793 MB / 0.6544 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004602/0.9121, allocations: 0.8102 MB / 0.8801 GB, free: 8.477 MB / 0.6544 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002608/0.9124, allocations: 371.3 kB / 0.8804 GB, free: 8.246 MB / 0.6544 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002871/0.9126, allocations: 225 kB / 0.8806 GB, free: 8.219 MB / 0.6544 GB Notification: Performance of setup shared object (initialization): time 0.0001161/0.9128, allocations: 348.5 kB / 0.881 GB, free: 7.914 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006984/0.9135, allocations: 450.6 kB / 0.8814 GB, free: 7.898 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009577/0.9144, allocations: 0.8272 MB / 0.8822 GB, free: 7.441 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001673/0.9161, allocations: 1.252 MB / 0.8834 GB, free: 7.086 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.833e-06/0.9161, allocations: 11 kB / 0.8834 GB, free: 7.078 MB / 0.6544 GB Notification: Performance of matching and sorting (n=150) (initialization): time 0.002152/0.9183, allocations: 1.403 MB / 0.8848 GB, free: 6.953 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 1.951e-05/0.9183, allocations: 7.438 kB / 0.8848 GB, free: 6.953 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.251e-05/0.9183, allocations: 11.41 kB / 0.8848 GB, free: 6.953 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.381e-05/0.9184, allocations: 14.25 kB / 0.8848 GB, free: 6.953 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001029/0.9194, allocations: 276.5 kB / 0.8851 GB, free: 6.949 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.909e-05/0.9194, allocations: 20.03 kB / 0.8851 GB, free: 6.949 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001553/0.921, allocations: 167.9 kB / 0.8853 GB, free: 6.922 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.072e-05/0.9211, allocations: 51.03 kB / 0.8853 GB, free: 6.922 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001197/0.9223, allocations: 0.7697 MB / 0.8861 GB, free: 6.793 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000936/0.9232, allocations: 0.8221 MB / 0.8869 GB, free: 6.254 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001606/0.9248, allocations: 1.234 MB / 0.8881 GB, free: 5.797 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.04e-06/0.9249, allocations: 2.438 kB / 0.8881 GB, free: 5.797 MB / 0.6544 GB Notification: Performance of matching and sorting (n=150) (initialization_lambda0): time 0.002039/0.9269, allocations: 1.39 MB / 0.8894 GB, free: 5.52 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 1.325e-05/0.9269, allocations: 10.16 kB / 0.8895 GB, free: 5.52 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.996e-06/0.9269, allocations: 10.67 kB / 0.8895 GB, free: 5.52 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.21e-05/0.927, allocations: 17.19 kB / 0.8895 GB, free: 5.52 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009889/0.928, allocations: 274.3 kB / 0.8897 GB, free: 5.484 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.574e-05/0.928, allocations: 16.03 kB / 0.8898 GB, free: 5.484 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0015/0.9295, allocations: 169 kB / 0.8899 GB, free: 5.426 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.72e-05/0.9296, allocations: 51.56 kB / 0.89 GB, free: 5.426 MB / 0.6544 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 41 * Number of states: 0 () * Number of discrete variables: 4 (vol.regularFlow[1],vol.regularFlow[2],vol.inFlow[2],vol.inFlow[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (150): * Single equations (assignments): 150 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0003171/0.9299, allocations: 266.5 kB / 0.8902 GB, free: 5.234 MB / 0.6544 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002238/0.9301, allocations: 166.5 kB / 0.8904 GB, free: 5.148 MB / 0.6544 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001924/0.9321, allocations: 1.148 MB / 0.8915 GB, free: 4.891 MB / 0.6544 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.286e-06/0.9321, allocations: 10.88 kB / 0.8915 GB, free: 4.891 MB / 0.6544 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.881e-06/0.9321, allocations: 0 / 0.8915 GB, free: 4.891 MB / 0.6544 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001476/0.9336, allocations: 1.075 MB / 0.8926 GB, free: 4.508 MB / 0.6544 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004323/0.9379, allocations: 2.779 MB / 0.8953 GB, free: 3.562 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.641e-06/0.9379, allocations: 0 / 0.8953 GB, free: 3.562 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001159/0.9391, allocations: 260.5 kB / 0.8955 GB, free: 3.52 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.325e-05/0.9391, allocations: 9.469 kB / 0.8955 GB, free: 3.516 MB / 0.6544 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.689e-05/0.9392, allocations: 30.52 kB / 0.8956 GB, free: 3.508 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.256e-06/0.9392, allocations: 5.438 kB / 0.8956 GB, free: 3.508 MB / 0.6544 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.027e-06/0.9392, allocations: 5.406 kB / 0.8956 GB, free: 3.508 MB / 0.6544 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002766/0.942, allocations: 1.801 MB / 0.8973 GB, free: 3.012 MB / 0.6544 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00069/0.9427, allocations: 341.6 kB / 0.8977 GB, free: 2.793 MB / 0.6544 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001941/0.9429, allocations: 26 kB / 0.8977 GB, free: 2.789 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001211/0.9441, allocations: 137 kB / 0.8978 GB, free: 2.738 MB / 0.6544 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001421/0.9443, allocations: 72.08 kB / 0.8979 GB, free: 2.711 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.054e-05/0.9443, allocations: 38.78 kB / 0.8979 GB, free: 2.703 MB / 0.6544 GB Notification: Performance of sorting global known variables: time 0.001122/0.9455, allocations: 0.8396 MB / 0.8987 GB, free: 2.191 MB / 0.6544 GB Notification: Performance of sort global known variables: time 1.2e-07/0.9455, allocations: 0 / 0.8987 GB, free: 2.191 MB / 0.6544 GB Notification: Performance of remove unused functions: time 0.002109/0.9476, allocations: 0.7723 MB / 0.8995 GB, free: 1.477 MB / 0.6544 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 9 (vol1.dynBal.U,vol1.dynBal.m,vol1.dynBal.mXi[1],vol.medium.Xi[1],vol.medium.T,vol.m,vol2.dynBal.U,vol2.dynBal.m,vol2.dynBal.mXi[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 (102): * Single equations (assignments): 102 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.003502/0.9511, allocations: 2.527 MB / 0.902 GB, free: 15.48 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.003039/0.9541, allocations: 1.721 MB / 0.9036 GB, free: 14.29 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 7.054e-06/0.9542, allocations: 6.844 kB / 0.9036 GB, free: 14.29 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.0008219/0.955, allocations: 0.5161 MB / 0.9042 GB, free: 13.93 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004347/0.9594, allocations: 0.9745 MB / 0.9051 GB, free: 13.13 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01853/0.9779, allocations: 13.69 MB / 0.9185 GB, free: 15.78 MB / 0.6856 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009164/0.9788, allocations: 1.441 MB / 0.9199 GB, free: 14.3 MB / 0.6856 GB Notification: Performance of simCode: alias equations: time 0.002188/0.981, allocations: 0.5602 MB / 0.9204 GB, free: 13.74 MB / 0.6856 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008536/0.9819, allocations: 0.6789 MB / 0.9211 GB, free: 13.06 MB / 0.6856 GB Notification: Performance of SimCode: time 9.72e-07/0.9819, allocations: 0 / 0.9211 GB, free: 13.06 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.913/2.895, allocations: 43.7 MB / 0.9638 GB, free: 2.07 MB / 0.7169 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0003662/2.895, allocations: 237.9 kB / 0.964 GB, free: 1.812 MB / 0.7169 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.893/5.789, allocations: 0 / 0.964 GB, free: 1.812 MB / 0.7169 GB (rm -f IDEAS_IDEAS.Fluid.MixingVolumes.Validation.MixingVolume.pipe ; mkfifo IDEAS_IDEAS.Fluid.MixingVolumes.Validation.MixingVolume.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.MixingVolumes.Validation.MixingVolume.pipe >> ../files/IDEAS_IDEAS.Fluid.MixingVolumes.Validation.MixingVolume.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_IDEAS_Fluid_MixingVolumes_Validation_MixingVolume_fmu --startTime=0 --stopTime=2 --timeout=50 --tolerance=1e-09 IDEAS_IDEAS_Fluid_MixingVolumes_Validation_MixingVolume.fmu > IDEAS_IDEAS.Fluid.MixingVolumes.Validation.MixingVolume.pipe 2>&1)