Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 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(Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001399/0.001399, allocations: 111.3 kB / 15.34 MB, free: 0.5117 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001779/0.00178, allocations: 191.5 kB / 16.25 MB, free: 6.629 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.7/1.7, allocations: 205.1 MB / 222.1 MB, free: 4.727 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.774/1.774, allocations: 292.2 MB / 0.5485 GB, free: 13.64 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001303/0.001303, allocations: 63.95 kB / 0.671 GB, free: 26.34 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2544/0.2557, allocations: 114.5 MB / 0.7829 GB, free: 13.9 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD): time 0.01956/0.2753, allocations: 16.23 MB / 0.7987 GB, free: 13.61 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.009526/0.2848, allocations: 5.881 MB / 0.8045 GB, free: 7.707 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001303/0.2862, allocations: 39.88 kB / 0.8045 GB, free: 7.668 MB / 0.6231 GB Notification: Performance of NFTyping.typeComponents: time 0.003338/0.2896, allocations: 1.28 MB / 0.8058 GB, free: 6.387 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.002833/0.2924, allocations: 0.9499 MB / 0.8067 GB, free: 5.434 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.002655/0.2951, allocations: 0.9475 MB / 0.8076 GB, free: 4.484 MB / 0.6231 GB Notification: Performance of NFFlatten.flatten: time 0.004409/0.2995, allocations: 4.147 MB / 0.8117 GB, free: 336 kB / 0.6231 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008418/0.308, allocations: 6.594 MB / 0.8181 GB, free: 9.66 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003585/0.3116, allocations: 1.839 MB / 0.8199 GB, free: 7.816 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004183/0.3158, allocations: 2.306 MB / 0.8221 GB, free: 5.504 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.001125/0.3169, allocations: 432 kB / 0.8226 GB, free: 5.082 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003014/0.32, allocations: 1.112 MB / 0.8236 GB, free: 3.969 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.002546/0.3225, allocations: 1.716 MB / 0.8253 GB, free: 2.25 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.002122/0.3247, allocations: 1.693 MB / 0.827 GB, free: 0.5508 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.008356/0.333, allocations: 6.319 MB / 0.8331 GB, free: 10.21 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 1.063e-05/0.3331, allocations: 4 kB / 0.8331 GB, free: 10.21 MB / 0.6544 GB Notification: Performance of FrontEnd: time 3.156e-06/0.3331, allocations: 0 / 0.8331 GB, free: 10.21 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 0.0002057/0.3333, allocations: 0 / 0.8331 GB, free: 10.21 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 769 * Number of variables: 769 Notification: Performance of Generate backend data structure: time 0.00793/0.3413, allocations: 2.947 MB / 0.836 GB, free: 7.203 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 4.796e-05/0.3413, allocations: 8.031 kB / 0.836 GB, free: 7.195 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01088/0.3522, allocations: 2.01 MB / 0.838 GB, free: 5.18 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003659/0.3559, allocations: 1.589 MB / 0.8395 GB, free: 3.547 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001697/0.3561, allocations: 214.2 kB / 0.8397 GB, free: 3.336 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007611/0.3569, allocations: 276.4 kB / 0.84 GB, free: 3.066 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01558/0.3725, allocations: 5.689 MB / 0.8456 GB, free: 13.28 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.152e-05/0.3726, allocations: 3.938 kB / 0.8456 GB, free: 13.28 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000395/0.373, allocations: 128 kB / 0.8457 GB, free: 13.15 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000318/0.3733, allocations: 200.7 kB / 0.8459 GB, free: 12.95 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01374/0.387, allocations: 5.83 MB / 0.8516 GB, free: 7.109 MB / 0.67 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03089/0.418, allocations: 22.58 MB / 0.8736 GB, free: 14.5 MB / 0.7012 GB Notification: Performance of preOpt comSubExp (simulation): time 0.006109/0.4241, allocations: 3.024 MB / 0.8766 GB, free: 11.31 MB / 0.7012 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004731/0.4289, allocations: 1.94 MB / 0.8785 GB, free: 9.348 MB / 0.7012 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002236/0.4292, allocations: 122 kB / 0.8786 GB, free: 9.211 MB / 0.7012 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.587e-05/0.4292, allocations: 55.5 kB / 0.8786 GB, free: 9.148 MB / 0.7012 GB Notification: Performance of pre-optimization done (n=132): time 3.026e-06/0.4292, allocations: 0 / 0.8786 GB, free: 9.148 MB / 0.7012 GB Notification: Performance of matching and sorting (n=174): time 0.03981/0.4691, allocations: 12.83 MB / 0.8912 GB, free: 12.27 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001663/0.4693, allocations: 230.9 kB / 0.8914 GB, free: 12 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001661/0.4709, allocations: 0.9569 MB / 0.8923 GB, free: 11.04 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 0.0004706/0.4714, allocations: 53.7 kB / 0.8924 GB, free: 10.98 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.00087/0.4723, allocations: 1.154 MB / 0.8935 GB, free: 9.805 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008668/0.4732, allocations: 0.597 MB / 0.8941 GB, free: 9.199 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009183/0.4741, allocations: 459.7 kB / 0.8945 GB, free: 8.742 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 0.0001874/0.4743, allocations: 334 kB / 0.8948 GB, free: 8.41 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004744/0.4791, allocations: 1.887 MB / 0.8967 GB, free: 6.512 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005048/0.4841, allocations: 2.459 MB / 0.8991 GB, free: 3.793 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009541/0.4937, allocations: 4.37 MB / 0.9034 GB, free: 15.17 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.903e-05/0.4938, allocations: 4 kB / 0.9034 GB, free: 15.16 MB / 0.7325 GB Notification: Performance of matching and sorting (n=282) (initialization): time 0.01308/0.5069, allocations: 5.431 MB / 0.9087 GB, free: 9.715 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 3.928e-05/0.507, allocations: 16.06 kB / 0.9087 GB, free: 9.699 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.177e-05/0.507, allocations: 20 kB / 0.9087 GB, free: 9.68 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003292/0.5103, allocations: 1.205 MB / 0.9099 GB, free: 8.469 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003291/0.5136, allocations: 0.7331 MB / 0.9106 GB, free: 7.734 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.5685/1.082, allocations: 11.42 MB / 0.9217 GB, free: 125.9 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003413/1.086, allocations: 467.6 kB / 0.9222 GB, free: 125.9 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003434/1.086, allocations: 111.2 kB / 0.9223 GB, free: 125.9 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006835/1.093, allocations: 2.943 MB / 0.9252 GB, free: 125.1 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.00525/1.098, allocations: 2.456 MB / 0.9276 GB, free: 123.9 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00941/1.107, allocations: 4.347 MB / 0.9318 GB, free: 122 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.625e-05/1.108, allocations: 5.062 kB / 0.9318 GB, free: 122 MB / 0.7325 GB Notification: Performance of matching and sorting (n=282) (initialization_lambda0): time 0.01448/1.122, allocations: 5.357 MB / 0.937 GB, free: 120.3 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 4.594e-05/1.122, allocations: 12.69 kB / 0.9371 GB, free: 120.3 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.877e-05/1.122, allocations: 17.84 kB / 0.9371 GB, free: 120.3 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003369/1.126, allocations: 1.134 MB / 0.9382 GB, free: 120.1 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00349/1.129, allocations: 0.7207 MB / 0.9389 GB, free: 120 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01297/1.142, allocations: 11.25 MB / 0.9499 GB, free: 113.5 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0033/1.145, allocations: 454.9 kB / 0.9503 GB, free: 113.5 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003162/1.146, allocations: 113.4 kB / 0.9504 GB, free: 113.4 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 81 * 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 (212): * Single equations (assignments): 210 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(5,31,92.0%), (5,31,92.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0006297/1.146, allocations: 308.2 kB / 0.9507 GB, free: 113.2 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004178/1.147, allocations: 126.1 kB / 0.9508 GB, free: 113.2 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0111/1.158, allocations: 4.968 MB / 0.9557 GB, free: 111.1 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.442e-05/1.158, allocations: 20.34 kB / 0.9557 GB, free: 111.1 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.88e-05/1.158, allocations: 12.75 kB / 0.9557 GB, free: 111.1 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.977e-05/1.158, allocations: 7.969 kB / 0.9557 GB, free: 111.1 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01585/1.174, allocations: 8.955 MB / 0.9645 GB, free: 105.6 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.241e-05/1.174, allocations: 7.844 kB / 0.9645 GB, free: 105.6 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002292/1.176, allocations: 0.5263 MB / 0.965 GB, free: 105.4 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002323/1.179, allocations: 0.9804 MB / 0.9659 GB, free: 104.9 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002162/1.179, allocations: 54.27 kB / 0.966 GB, free: 104.9 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01118/1.19, allocations: 10.92 MB / 0.9767 GB, free: 95.27 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.473e-06/1.19, allocations: 8 kB / 0.9767 GB, free: 95.27 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009789/1.2, allocations: 4.763 MB / 0.9813 GB, free: 90.39 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001051/1.201, allocations: 0.4895 MB / 0.9818 GB, free: 89.88 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002697/1.201, allocations: 34.11 kB / 0.9818 GB, free: 89.85 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002303/1.204, allocations: 403.3 kB / 0.9822 GB, free: 89.46 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003753/1.204, allocations: 152.9 kB / 0.9824 GB, free: 89.3 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001327/1.204, allocations: 78.67 kB / 0.9824 GB, free: 89.23 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.0007681/1.205, allocations: 0.6864 MB / 0.9831 GB, free: 88.54 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.31e-07/1.205, allocations: 0 / 0.9831 GB, free: 88.54 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.004/1.209, allocations: 1.19 MB / 0.9843 GB, free: 87.36 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 32 * 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 (103): * Single equations (assignments): 101 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(4,32,100.0%), (8,28,53.1%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.000305/1.209, allocations: 153 kB / 0.9844 GB, free: 87.2 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.01853/1.228, allocations: 8.579 MB / 0.9928 GB, free: 78.6 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 1.346e-05/1.228, allocations: 0 / 0.9928 GB, free: 78.6 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.006022/1.234, allocations: 2.669 MB / 0.9954 GB, free: 75.91 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001909/1.236, allocations: 183.8 kB / 0.9956 GB, free: 75.73 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01957/1.255, allocations: 8.579 MB / 1.004 GB, free: 67.05 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001836/1.257, allocations: 2.312 MB / 1.006 GB, free: 64.7 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.003422/1.261, allocations: 1.227 MB / 1.007 GB, free: 63.48 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004701/1.261, allocations: 131.3 kB / 1.008 GB, free: 63.35 MB / 0.7325 GB Notification: Performance of SimCode: time 8.22e-07/1.261, allocations: 3.281 kB / 1.008 GB, free: 63.35 MB / 0.7325 GB Notification: Performance of Templates: time 0.05192/1.313, allocations: 36.76 MB / 1.043 GB, free: 26.8 MB / 0.7325 GB make -j1 -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.makefile (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.sim & ./Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.pipe 2>&1)