Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary.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.BoundaryConditions.WeatherData.Validation.DecemberToJanuary,tolerance=1e-06,outputFormat="empty",numberOfIntervals=482,variableFilter="",fileNamePrefix="Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary") translateModel(Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary,tolerance=1e-06,outputFormat="empty",numberOfIntervals=482,variableFilter="",fileNamePrefix="Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001073/0.001073, allocations: 107 kB / 16.29 MB, free: 6.023 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00104/0.00104, allocations: 181.6 kB / 17.22 MB, free: 5.633 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.348/1.348, allocations: 205.1 MB / 223.1 MB, free: 12.31 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.78/1.78, allocations: 292.3 MB / 0.5495 GB, free: 17.7 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 0.001432/0.001432, allocations: 63.91 kB / 0.6722 GB, free: 6.551 MB / 0.545 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.242/0.2434, allocations: 114.5 MB / 0.7841 GB, free: 3.887 MB / 0.6544 GB Notification: Performance of NFInst.instantiate(Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary): time 0.4367/0.6802, allocations: 4.018 MB / 0.788 GB, free: 45.92 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.1927/0.8729, allocations: 150.2 MB / 0.9346 GB, free: 396 kB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008775/0.8738, allocations: 15.94 kB / 0.9347 GB, free: 380 kB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.0005583/0.8744, allocations: 158.5 kB / 0.9348 GB, free: 220 kB / 0.7169 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Utilities/Strings.mo:216:3-259:11:writable] Warning: Pure function 'Modelica.Utilities.Strings.find' contains a call to impure function 'Modelica.Utilities.Strings.length'. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getHeaderElementTMY3.mo:2:1-105:25:writable] Warning: Pure function 'Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3' contains a call to impure function 'Modelica.Utilities.Streams.readLine'. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getLongitudeTMY3.mo:2:1-48:21:writable] Warning: Pure function 'Buildings.BoundaryConditions.WeatherData.BaseClasses.getLongitudeTMY3' contains a call to impure function 'Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3'. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getLatitudeTMY3.mo:2:1-48:20:writable] Warning: Pure function 'Buildings.BoundaryConditions.WeatherData.BaseClasses.getLatitudeTMY3' contains a call to impure function 'Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3'. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getTimeZoneTMY3.mo:2:1-47:20:writable] Warning: Pure function 'Buildings.BoundaryConditions.WeatherData.BaseClasses.getTimeZoneTMY3' contains a call to impure function 'Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3'. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Utilities/Strings.mo:139:3-175:14:writable] Warning: Pure function 'Modelica.Utilities.Strings.isEmpty' contains a call to impure function 'Modelica.Utilities.Strings.Advanced.skipWhiteSpace'. Notification: Performance of NFTyping.typeBindings: time 0.001553/0.876, allocations: 406.2 kB / 0.9352 GB, free: 15.82 MB / 0.7325 GB Notification: Performance of NFTyping.typeClassSections: time 0.001724/0.8777, allocations: 0.7027 MB / 0.9359 GB, free: 15.12 MB / 0.7325 GB Notification: Performance of NFFlatten.flatten: time 0.0012/0.8789, allocations: 1.062 MB / 0.9369 GB, free: 14.06 MB / 0.7325 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007118/0.8797, allocations: 495.4 kB / 0.9374 GB, free: 13.57 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003885/0.8801, allocations: 350.7 kB / 0.9377 GB, free: 13.23 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0004524/0.8805, allocations: 362.3 kB / 0.9381 GB, free: 12.87 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.0001251/0.8807, allocations: 88 kB / 0.9382 GB, free: 12.79 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.000598/0.8813, allocations: 299.8 kB / 0.9384 GB, free: 12.49 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.0002121/0.8815, allocations: 229.1 kB / 0.9387 GB, free: 12.27 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.0003446/0.8818, allocations: 425.7 kB / 0.9391 GB, free: 11.85 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.001285/0.8831, allocations: 1.195 MB / 0.9402 GB, free: 10.65 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 6.492e-06/0.8831, allocations: 4 kB / 0.9402 GB, free: 10.65 MB / 0.7325 GB Notification: Performance of FrontEnd: time 1.472e-06/0.8832, allocations: 0 / 0.9402 GB, free: 10.65 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 1.47e-05/0.8832, allocations: 0 / 0.9402 GB, free: 10.65 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 154 * Number of variables: 154 Notification: Performance of Generate backend data structure: time 0.00174/0.8849, allocations: 1.153 MB / 0.9414 GB, free: 9.449 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 3.803e-05/0.885, allocations: 8.031 kB / 0.9414 GB, free: 9.441 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002844/0.8853, allocations: 103.8 kB / 0.9415 GB, free: 9.34 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008618/0.8861, allocations: 0.6557 MB / 0.9421 GB, free: 8.637 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.311e-05/0.8862, allocations: 45.31 kB / 0.9421 GB, free: 8.594 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.6e-05/0.8863, allocations: 64 kB / 0.9422 GB, free: 8.531 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001085/0.8874, allocations: 0.6892 MB / 0.9429 GB, free: 7.789 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.978e-05/0.8874, allocations: 0 / 0.9429 GB, free: 7.789 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.027e-05/0.8875, allocations: 31.94 kB / 0.9429 GB, free: 7.758 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.682e-05/0.8875, allocations: 16 kB / 0.9429 GB, free: 7.742 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001226/0.8887, allocations: 0.9104 MB / 0.9438 GB, free: 6.832 MB / 0.7325 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002868/0.8916, allocations: 2.292 MB / 0.9461 GB, free: 4.457 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008794/0.8925, allocations: 0.6059 MB / 0.9466 GB, free: 3.84 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000314/0.8928, allocations: 227.3 kB / 0.9469 GB, free: 3.613 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 7.289e-05/0.8929, allocations: 24.59 kB / 0.9469 GB, free: 3.59 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.000645/0.8935, allocations: 350.4 kB / 0.9472 GB, free: 3.227 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=61): time 1.863e-06/0.8936, allocations: 0 / 0.9472 GB, free: 3.227 MB / 0.7325 GB Notification: Performance of matching and sorting (n=61): time 0.0013/0.8949, allocations: 0.7058 MB / 0.9479 GB, free: 2.516 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001345/0.895, allocations: 240 kB / 0.9481 GB, free: 2.227 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006655/0.8957, allocations: 0.582 MB / 0.9487 GB, free: 1.637 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 4.727e-05/0.8957, allocations: 37.7 kB / 0.9487 GB, free: 1.594 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002374/0.896, allocations: 320.8 kB / 0.9491 GB, free: 1.273 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001514/0.8961, allocations: 213 kB / 0.9493 GB, free: 1.062 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001871/0.8963, allocations: 139.4 kB / 0.9494 GB, free: 0.9219 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.0001536/0.8965, allocations: 374.8 kB / 0.9497 GB, free: 0.5469 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002992/0.8968, allocations: 193.2 kB / 0.9499 GB, free: 364 kB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004269/0.8972, allocations: 287.7 kB / 0.9502 GB, free: 56 kB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006908/0.8979, allocations: 484.2 kB / 0.9507 GB, free: 15.56 MB / 0.7481 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.926e-06/0.8979, allocations: 0 / 0.9507 GB, free: 15.56 MB / 0.7481 GB Notification: Performance of matching and sorting (n=76) (initialization): time 0.0009644/0.8989, allocations: 0.5996 MB / 0.9513 GB, free: 14.95 MB / 0.7481 GB Notification: Performance of prepare postOptimizeDAE: time 2.229e-05/0.8989, allocations: 8 kB / 0.9513 GB, free: 14.95 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.304e-06/0.899, allocations: 0 / 0.9513 GB, free: 14.95 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.214e-05/0.899, allocations: 7.984 kB / 0.9513 GB, free: 14.94 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004944/0.8995, allocations: 132 kB / 0.9514 GB, free: 14.81 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.186e-05/0.8995, allocations: 4 kB / 0.9514 GB, free: 14.8 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004619/0.9, allocations: 71.48 kB / 0.9515 GB, free: 14.73 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.854e-05/0.9, allocations: 29.67 kB / 0.9515 GB, free: 14.71 MB / 0.7481 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 6 * Number of states: 0 () * Number of discrete variables: 8 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,$whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (76): * Single equations (assignments): 76 * 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 0.0003189/0.9004, allocations: 245.6 kB / 0.9517 GB, free: 14.46 MB / 0.7481 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001194/0.9005, allocations: 71.06 kB / 0.9518 GB, free: 14.39 MB / 0.7481 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001168/0.9017, allocations: 0.6819 MB / 0.9525 GB, free: 13.71 MB / 0.7481 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.267e-06/0.9017, allocations: 8 kB / 0.9525 GB, free: 13.7 MB / 0.7481 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.131e-06/0.9017, allocations: 0 / 0.9525 GB, free: 13.7 MB / 0.7481 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.312e-05/0.9017, allocations: 3.984 kB / 0.9525 GB, free: 13.7 MB / 0.7481 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0009489/0.9027, allocations: 0.8856 MB / 0.9533 GB, free: 12.76 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.095e-06/0.9027, allocations: 4.031 kB / 0.9533 GB, free: 12.75 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003985/0.9031, allocations: 115.8 kB / 0.9535 GB, free: 12.64 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.851e-06/0.9031, allocations: 3.984 kB / 0.9535 GB, free: 12.64 MB / 0.7481 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.917e-05/0.9032, allocations: 20 kB / 0.9535 GB, free: 12.62 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.779e-06/0.9032, allocations: 4 kB / 0.9535 GB, free: 12.61 MB / 0.7481 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.606e-06/0.9032, allocations: 3.984 kB / 0.9535 GB, free: 12.61 MB / 0.7481 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.000956/0.9041, allocations: 0.6301 MB / 0.9541 GB, free: 11.95 MB / 0.7481 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002763/0.9044, allocations: 243.9 kB / 0.9543 GB, free: 11.7 MB / 0.7481 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.484e-05/0.9045, allocations: 19.98 kB / 0.9543 GB, free: 11.68 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000372/0.9049, allocations: 40.73 kB / 0.9544 GB, free: 11.64 MB / 0.7481 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001078/0.905, allocations: 56.5 kB / 0.9544 GB, free: 11.59 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.199e-05/0.9051, allocations: 31.92 kB / 0.9545 GB, free: 11.55 MB / 0.7481 GB Notification: Performance of sorting global known variables: time 0.0005002/0.9056, allocations: 415.1 kB / 0.9549 GB, free: 11.15 MB / 0.7481 GB Notification: Performance of sort global known variables: time 1.5e-07/0.9056, allocations: 7.938 kB / 0.9549 GB, free: 11.14 MB / 0.7481 GB Notification: Performance of remove unused functions: time 0.0006652/0.9063, allocations: 227.5 kB / 0.9551 GB, free: 10.92 MB / 0.7481 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of discrete states: 2 (weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (72): * Single equations (assignments): 70 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 0.001475/0.9078, allocations: 0.5611 MB / 0.9556 GB, free: 10.6 MB / 0.7481 GB Notification: Performance of simCode: created initialization part: time 0.0008752/0.9086, allocations: 0.5047 MB / 0.9561 GB, free: 10.09 MB / 0.7481 GB Notification: Performance of simCode: created event and clocks part: time 4.228e-06/0.9087, allocations: 0 / 0.9561 GB, free: 10.09 MB / 0.7481 GB Notification: Performance of simCode: created simulation system equations: time 0.0003873/0.909, allocations: 279.6 kB / 0.9564 GB, free: 9.82 MB / 0.7481 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009196/0.91, allocations: 254.7 kB / 0.9566 GB, free: 9.598 MB / 0.7481 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002077/0.9121, allocations: 1.28 MB / 0.9579 GB, free: 8.289 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005547/0.9126, allocations: 0.9529 MB / 0.9588 GB, free: 7.309 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.0006335/0.9133, allocations: 237.6 kB / 0.959 GB, free: 7.098 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001926/0.9135, allocations: 91.39 kB / 0.9591 GB, free: 7.008 MB / 0.7481 GB Notification: Performance of SimCode: time 5.21e-07/0.9135, allocations: 0 / 0.9591 GB, free: 7.008 MB / 0.7481 GB Notification: Performance of Templates: time 0.01889/0.9324, allocations: 10.94 MB / 0.9698 GB, free: 12.25 MB / 0.7637 GB make -j1 -f Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary.makefile (rm -f Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary.pipe ; mkfifo Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary.pipe ; head -c 1048576 < Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary.pipe >> ../files/Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary.sim & ./Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary -abortSlowSimulation -alarm=480 -s cvode -lv LOG_STATS > Buildings_8_Buildings.BoundaryConditions.WeatherData.Validation.DecemberToJanuary.pipe 2>&1)