Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow.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/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-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(BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow") translateModel(BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001451/0.001452, allocations: 108.7 kB / 16.41 MB, free: 6.027 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001375/0.001375, allocations: 186.2 kB / 17.34 MB, free: 5.633 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.361/1.361, allocations: 222.9 MB / 241 MB, free: 15.16 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002193/0.002193, allocations: 290.9 kB / 291.5 MB, free: 14.45 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.9306/0.9306, allocations: 169.2 MB / 0.499 GB, free: 4.43 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001861/0.001861, allocations: 95.84 kB / 0.6821 GB, free: 6.934 MB / 494.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4269/0.4287, allocations: 86.98 MB / 0.767 GB, free: 3.891 MB / 0.5294 GB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow): time 0.7197/1.148, allocations: 214.2 MB / 0.9762 GB, free: 1.777 MB / 0.7169 GB Notification: Performance of NFInst.instExpressions: time 0.01017/1.159, allocations: 7.035 MB / 0.9831 GB, free: 1.688 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002002/1.161, allocations: 45.97 kB / 0.9831 GB, free: 1.688 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.002005/1.163, allocations: 0.7926 MB / 0.9839 GB, free: 1.676 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.005877/1.169, allocations: 2.514 MB / 0.9864 GB, free: 1.574 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.002895/1.172, allocations: 1.17 MB / 0.9875 GB, free: 1.535 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.003703/1.175, allocations: 2.83 MB / 0.9903 GB, free: 1.527 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0014/1.177, allocations: 1.087 MB / 0.9913 GB, free: 1.414 MB / 0.7169 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004105/1.181, allocations: 2.02 MB / 0.9933 GB, free: 1.383 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001869/1.183, allocations: 0.9348 MB / 0.9942 GB, free: 1.383 MB / 0.7169 GB Notification: Performance of NFPackage.collectConstants: time 0.0001718/1.183, allocations: 120.3 kB / 0.9943 GB, free: 1.383 MB / 0.7169 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004022/1.187, allocations: 2.452 MB / 0.9967 GB, free: 1.359 MB / 0.7169 GB Notification: Performance of NFScalarize.scalarize: time 0.0003701/1.187, allocations: 423.7 kB / 0.9971 GB, free: 1.355 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.0007581/1.188, allocations: 0.6869 MB / 0.9978 GB, free: 1.355 MB / 0.7169 GB Notification: Performance of NFConvertDAE.convert: time 0.003618/1.192, allocations: 2.503 MB / 1 GB, free: 1.117 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 5.59e-06/1.192, allocations: 3.406 kB / 1 GB, free: 1.117 MB / 0.7169 GB Notification: Performance of FrontEnd: time 1.623e-06/1.192, allocations: 0 / 1 GB, free: 1.117 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 1.677e-05/1.192, allocations: 1.031 kB / 1 GB, free: 1.117 MB / 0.7169 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 209 * Number of variables: 209 Notification: Performance of Generate backend data structure: time 0.004141/1.196, allocations: 1.846 MB / 1.002 GB, free: 16.19 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 3.966e-05/1.196, allocations: 8.688 kB / 1.002 GB, free: 16.19 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003/1.199, allocations: 0.5415 MB / 1.003 GB, free: 16.12 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001599/1.201, allocations: 1.004 MB / 1.004 GB, free: 15.77 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.378e-05/1.201, allocations: 72.25 kB / 1.004 GB, free: 15.77 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000129/1.201, allocations: 81.31 kB / 1.004 GB, free: 15.77 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002434/1.203, allocations: 1.221 MB / 1.005 GB, free: 15.71 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.903e-05/1.203, allocations: 7.375 kB / 1.005 GB, free: 15.71 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.999e-05/1.203, allocations: 32.48 kB / 1.005 GB, free: 15.71 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.757e-05/1.203, allocations: 45.27 kB / 1.005 GB, free: 15.71 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003301/1.207, allocations: 1.525 MB / 1.006 GB, free: 15.71 MB / 0.7325 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 0.005924/1.213, allocations: 4.042 MB / 1.01 GB, free: 14.12 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002288/1.215, allocations: 0.9724 MB / 1.011 GB, free: 14.09 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001498/1.216, allocations: 0.6564 MB / 1.012 GB, free: 14.09 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001077/1.218, allocations: 0.6032 MB / 1.013 GB, free: 13.52 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.368e-05/1.218, allocations: 44.84 kB / 1.013 GB, free: 13.48 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=76): time 3.196e-06/1.218, allocations: 0.75 kB / 1.013 GB, free: 13.48 MB / 0.7325 GB Notification: Performance of matching and sorting (n=76): time 0.004883/1.223, allocations: 1.787 MB / 1.014 GB, free: 13.38 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.033e-05/1.223, allocations: 63.72 kB / 1.014 GB, free: 13.32 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001021/1.224, allocations: 0.8199 MB / 1.015 GB, free: 13.17 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.0001378/1.224, allocations: 40.98 kB / 1.015 GB, free: 13.14 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003018/1.224, allocations: 449.9 kB / 1.016 GB, free: 12.96 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002275/1.224, allocations: 256.8 kB / 1.016 GB, free: 12.8 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002861/1.225, allocations: 155.3 kB / 1.016 GB, free: 12.77 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.000115/1.225, allocations: 335.2 kB / 1.016 GB, free: 12.47 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001356/1.226, allocations: 0.524 MB / 1.017 GB, free: 12.45 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00146/1.228, allocations: 0.648 MB / 1.018 GB, free: 12.36 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00267/1.23, allocations: 1.118 MB / 1.019 GB, free: 12.26 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.278e-06/1.23, allocations: 0 / 1.019 GB, free: 12.26 MB / 0.7325 GB Notification: Performance of matching and sorting (n=84) (initialization): time 0.003349/1.234, allocations: 1.328 MB / 1.02 GB, free: 12.11 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 5.963e-05/1.234, allocations: 43.95 kB / 1.02 GB, free: 12.07 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.174e-05/1.234, allocations: 6.125 kB / 1.02 GB, free: 12.07 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.352e-05/1.234, allocations: 2.875 kB / 1.02 GB, free: 12.07 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001512/1.235, allocations: 247.8 kB / 1.02 GB, free: 12.06 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007625/1.236, allocations: 1.191 MB / 1.021 GB, free: 10.89 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001297/1.237, allocations: 143.1 kB / 1.022 GB, free: 10.85 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001091/1.237, allocations: 37.58 kB / 1.022 GB, free: 10.85 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001812/1.239, allocations: 0.7527 MB / 1.022 GB, free: 10.75 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001441/1.241, allocations: 0.6365 MB / 1.023 GB, free: 10.66 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002684/1.243, allocations: 1.104 MB / 1.024 GB, free: 10.56 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.298e-06/1.243, allocations: 2.031 kB / 1.024 GB, free: 10.56 MB / 0.7325 GB Notification: Performance of matching and sorting (n=84) (initialization_lambda0): time 0.003471/1.247, allocations: 1.321 MB / 1.025 GB, free: 10.42 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 5.522e-05/1.247, allocations: 39.45 kB / 1.025 GB, free: 10.38 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.543e-06/1.247, allocations: 1.25 kB / 1.025 GB, free: 10.38 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.359e-05/1.247, allocations: 3.781 kB / 1.025 GB, free: 10.38 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001239/1.248, allocations: 225.8 kB / 1.026 GB, free: 10.38 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.058e-05/1.248, allocations: 8.719 kB / 1.026 GB, free: 10.37 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001279/1.25, allocations: 137 kB / 1.026 GB, free: 10.34 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000106/1.25, allocations: 31.53 kB / 1.026 GB, free: 10.34 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 2 (hex.i2_w,hex.i1_w) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (83): * Single equations (assignments): 80 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0003702/1.25, allocations: 219.3 kB / 1.026 GB, free: 10.16 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000374/1.251, allocations: 103.2 kB / 1.026 GB, free: 10.11 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003625/1.254, allocations: 1.345 MB / 1.027 GB, free: 10.01 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.086e-05/1.254, allocations: 15.81 kB / 1.027 GB, free: 10 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.314e-06/1.254, allocations: 0 / 1.027 GB, free: 10 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.847e-06/1.254, allocations: 2.672 kB / 1.027 GB, free: 10 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00596/1.26, allocations: 2.843 MB / 1.03 GB, free: 9.508 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.628e-06/1.26, allocations: 2.969 kB / 1.03 GB, free: 9.508 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001206/1.261, allocations: 230.7 kB / 1.03 GB, free: 9.496 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.664e-05/1.261, allocations: 10.69 kB / 1.03 GB, free: 9.496 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.136e-05/1.262, allocations: 30.27 kB / 1.03 GB, free: 9.492 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0006489/1.262, allocations: 1.191 MB / 1.032 GB, free: 8.32 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.943e-06/1.262, allocations: 8.594 kB / 1.032 GB, free: 8.32 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003348/1.266, allocations: 1.457 MB / 1.033 GB, free: 7.961 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000628/1.266, allocations: 302.8 kB / 1.033 GB, free: 7.809 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002526/1.266, allocations: 19.09 kB / 1.033 GB, free: 7.809 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001245/1.268, allocations: 102.1 kB / 1.033 GB, free: 7.805 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001607/1.268, allocations: 66.22 kB / 1.033 GB, free: 7.797 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.551e-05/1.268, allocations: 34.83 kB / 1.034 GB, free: 7.797 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.0009161/1.269, allocations: 0.5731 MB / 1.034 GB, free: 7.688 MB / 0.7325 GB Notification: Performance of sort global known variables: time 2.9e-07/1.269, allocations: 0 / 1.034 GB, free: 7.688 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.001795/1.271, allocations: 0.5311 MB / 1.035 GB, free: 7.625 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 16 * 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 simulation (76): * Single equations (assignments): 74 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0006917/1.271, allocations: 277.9 kB / 1.035 GB, free: 7.5 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.005472/1.277, allocations: 2.008 MB / 1.037 GB, free: 6.895 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 8.627e-06/1.277, allocations: 2.594 kB / 1.037 GB, free: 6.895 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.001731/1.279, allocations: 0.66 MB / 1.037 GB, free: 6.719 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002886/1.282, allocations: 0.496 MB / 1.038 GB, free: 6.457 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004801/1.286, allocations: 2.124 MB / 1.04 GB, free: 5.145 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007917/1.287, allocations: 1.09 MB / 1.041 GB, free: 4.27 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005534/1.288, allocations: 105.6 kB / 1.041 GB, free: 4.195 MB / 0.7325 GB Notification: Performance of SimCode: time 1.643e-06/1.288, allocations: 0 / 1.041 GB, free: 4.195 MB / 0.7325 GB Notification: Performance of Templates: time 0.03598/1.324, allocations: 26.85 MB / 1.067 GB, free: 9.504 MB / 0.7637 GB make -j1 -f BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow.makefile (rm -f BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow.sim & ./BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Fluid.MassExchangers.Validation.ConstantEffectivenessZeroFlow.pipe 2>&1)