Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter.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.Movers.Examples.MoverParameter,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter") translateModel(BuildingSystems.Fluid.Movers.Examples.MoverParameter,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001441/0.001441, allocations: 101.1 kB / 16.27 MB, free: 6.414 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001262/0.001262, allocations: 190.3 kB / 17.2 MB, free: 5.953 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.317/1.317, allocations: 222.9 MB / 240.9 MB, free: 15.21 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002442/0.002442, allocations: 302.3 kB / 291.3 MB, free: 14.52 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 1.148/1.148, allocations: 178.5 MB / 0.5079 GB, free: 12.88 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.00266/0.00266, allocations: 100.3 kB / 0.6071 GB, free: 9.242 MB / 462.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1875/0.1901, allocations: 89.13 MB / 0.6941 GB, free: 28 kB / 0.5294 GB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.Movers.Examples.MoverParameter): time 0.3805/0.5707, allocations: 75.51 MB / 0.7679 GB, free: 2.992 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.04117/0.6119, allocations: 26.05 MB / 0.7933 GB, free: 492 kB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00678/0.6188, allocations: 126.9 kB / 0.7934 GB, free: 448 kB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.0248/0.6436, allocations: 12.73 MB / 0.8059 GB, free: 12.71 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.01283/0.6565, allocations: 3.78 MB / 0.8096 GB, free: 10.52 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.00922/0.6657, allocations: 3.063 MB / 0.8126 GB, free: 8.922 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.04035/0.7061, allocations: 23.44 MB / 0.8355 GB, free: 9.734 MB / 0.5919 GB Notification: Performance of NFFlatten.resolveConnections: time 0.005557/0.7117, allocations: 2.62 MB / 0.838 GB, free: 7.055 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008285/0.72, allocations: 2.99 MB / 0.8409 GB, free: 4.062 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004567/0.7246, allocations: 2.338 MB / 0.8432 GB, free: 1.715 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.001381/0.7259, allocations: 340 kB / 0.8435 GB, free: 1.383 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.008147/0.7341, allocations: 3.085 MB / 0.8466 GB, free: 14.29 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.002537/0.7367, allocations: 1.655 MB / 0.8482 GB, free: 12.63 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.005221/0.7419, allocations: 2.456 MB / 0.8506 GB, free: 10.16 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.01483/0.7568, allocations: 7.852 MB / 0.8582 GB, free: 2.289 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 5.961e-06/0.7568, allocations: 0 / 0.8582 GB, free: 2.289 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.543e-06/0.7568, allocations: 0 / 0.8582 GB, free: 2.289 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 0.0002185/0.757, allocations: 0 / 0.8582 GB, free: 2.289 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 374 * Number of variables: 374 Notification: Performance of Generate backend data structure: time 0.014/0.771, allocations: 5.512 MB / 0.8636 GB, free: 12.68 MB / 0.6231 GB Notification: Performance of prepare preOptimizeDAE: time 4.516e-05/0.7711, allocations: 8.031 kB / 0.8636 GB, free: 12.67 MB / 0.6231 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008847/0.78, allocations: 1.504 MB / 0.8651 GB, free: 11.16 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01376/0.7937, allocations: 6.773 MB / 0.8717 GB, free: 4.312 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007962/0.7946, allocations: 251.5 kB / 0.872 GB, free: 4.066 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005414/0.7951, allocations: 172 kB / 0.8721 GB, free: 3.898 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00525/0.8004, allocations: 2.526 MB / 0.8746 GB, free: 1.289 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.024e-05/0.8004, allocations: 3.938 kB / 0.8746 GB, free: 1.285 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001817/0.8006, allocations: 64 kB / 0.8746 GB, free: 1.223 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.518e-05/0.8007, allocations: 39.94 kB / 0.8747 GB, free: 1.184 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005588/0.8063, allocations: 2.002 MB / 0.8766 GB, free: 15.18 MB / 0.6387 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 0.01917/0.8254, allocations: 10.85 MB / 0.8872 GB, free: 3.848 MB / 0.6387 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004473/0.8299, allocations: 1.517 MB / 0.8887 GB, free: 2.32 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001904/0.8319, allocations: 0.6778 MB / 0.8894 GB, free: 1.641 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 0.008501/0.8404, allocations: 4.45 MB / 0.8937 GB, free: 12.92 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.248e-05/0.8405, allocations: 47.06 kB / 0.8938 GB, free: 12.86 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=57): time 2.655e-06/0.8405, allocations: 0 / 0.8938 GB, free: 12.86 MB / 0.6544 GB Notification: Performance of matching and sorting (n=57): time 0.006976/0.8475, allocations: 2.227 MB / 0.8959 GB, free: 10.62 MB / 0.6544 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.961e-05/0.8475, allocations: 55.97 kB / 0.896 GB, free: 10.56 MB / 0.6544 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01012/0.8577, allocations: 5.382 MB / 0.9013 GB, free: 5.199 MB / 0.6544 GB Notification: Performance of collectPreVariables (initialization): time 0.000606/0.8583, allocations: 53.69 kB / 0.9013 GB, free: 5.141 MB / 0.6544 GB Notification: Performance of collectInitialEqns (initialization): time 0.002769/0.8611, allocations: 1.946 MB / 0.9032 GB, free: 3.18 MB / 0.6544 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006314/0.8618, allocations: 225.1 kB / 0.9034 GB, free: 2.957 MB / 0.6544 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001551/0.8633, allocations: 0.7407 MB / 0.9041 GB, free: 2.207 MB / 0.6544 GB Notification: Performance of setup shared object (initialization): time 0.0001449/0.8635, allocations: 309.1 kB / 0.9044 GB, free: 1.902 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003953/0.8674, allocations: 2.181 MB / 0.9066 GB, free: 15.71 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00481/0.8723, allocations: 3.144 MB / 0.9096 GB, free: 12.18 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00797/0.8803, allocations: 4.904 MB / 0.9144 GB, free: 6.918 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.521e-05/0.8803, allocations: 12 kB / 0.9144 GB, free: 6.906 MB / 0.67 GB Notification: Performance of matching and sorting (n=418) (initialization): time 0.01125/0.8916, allocations: 5.702 MB / 0.92 GB, free: 1.199 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 4.097e-05/0.8917, allocations: 16 kB / 0.92 GB, free: 1.184 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.215e-05/0.8917, allocations: 24 kB / 0.92 GB, free: 1.16 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.95e-05/0.8918, allocations: 36 kB / 0.9201 GB, free: 1.125 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00346/0.8953, allocations: 0.6711 MB / 0.9207 GB, free: 468 kB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002422/0.8977, allocations: 2.406 MB / 0.9231 GB, free: 13.98 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004144/0.9019, allocations: 474.9 kB / 0.9235 GB, free: 13.52 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004141/0.9023, allocations: 171.9 kB / 0.9237 GB, free: 13.35 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.005388/0.9077, allocations: 2.962 MB / 0.9266 GB, free: 10.38 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.004471/0.9122, allocations: 2.922 MB / 0.9294 GB, free: 7.07 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.007197/0.9194, allocations: 4.489 MB / 0.9338 GB, free: 2.23 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.135e-05/0.9195, allocations: 8 kB / 0.9338 GB, free: 2.223 MB / 0.6856 GB Notification: Performance of matching and sorting (n=418) (initialization_lambda0): time 0.01041/0.9299, allocations: 5.271 MB / 0.939 GB, free: 12.95 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 3.091e-05/0.93, allocations: 18.66 kB / 0.939 GB, free: 12.93 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.86e-05/0.93, allocations: 24 kB / 0.939 GB, free: 12.91 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.221e-05/0.9301, allocations: 36 kB / 0.9391 GB, free: 12.87 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002968/0.933, allocations: 0.675 MB / 0.9397 GB, free: 12.2 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.507e-05/0.9331, allocations: 55.78 kB / 0.9398 GB, free: 12.14 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003878/0.937, allocations: 372.8 kB / 0.9401 GB, free: 11.78 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003302/0.9373, allocations: 172 kB / 0.9403 GB, free: 11.61 MB / 0.7012 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 111 * 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 (293): * Single equations (assignments): 280 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 7 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 3 * 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): 3 systems {1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.000634/0.938, allocations: 323.9 kB / 0.9406 GB, free: 11.29 MB / 0.7012 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009791/0.939, allocations: 414.4 kB / 0.941 GB, free: 10.88 MB / 0.7012 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.005589/0.9446, allocations: 2.111 MB / 0.9431 GB, free: 8.75 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.894e-05/0.9446, allocations: 8 kB / 0.9431 GB, free: 8.742 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.887e-06/0.9446, allocations: 7.938 kB / 0.9431 GB, free: 8.734 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.07e-05/0.9446, allocations: 3.984 kB / 0.9431 GB, free: 8.73 MB / 0.7012 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01011/0.9547, allocations: 4.651 MB / 0.9476 GB, free: 3.992 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.026e-05/0.9548, allocations: 7.938 kB / 0.9476 GB, free: 3.984 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001361/0.9562, allocations: 235.9 kB / 0.9479 GB, free: 3.754 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002729/0.9564, allocations: 108.7 kB / 0.948 GB, free: 3.645 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.282e-05/0.9565, allocations: 31.97 kB / 0.948 GB, free: 3.613 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001699/0.9582, allocations: 2.157 MB / 0.9501 GB, free: 1.383 MB / 0.7012 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.48e-06/0.9583, allocations: 3.938 kB / 0.9501 GB, free: 1.379 MB / 0.7012 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005384/0.9636, allocations: 2.079 MB / 0.9521 GB, free: 15.24 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001992/0.9657, allocations: 0.7099 MB / 0.9528 GB, free: 14.5 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007024/0.9664, allocations: 19.94 kB / 0.9528 GB, free: 14.48 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001998/0.9684, allocations: 147.7 kB / 0.953 GB, free: 14.34 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001175/0.9685, allocations: 56.48 kB / 0.953 GB, free: 14.29 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001202/0.9686, allocations: 51.95 kB / 0.9531 GB, free: 14.23 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.007371/0.976, allocations: 3.624 MB / 0.9566 GB, free: 10.63 MB / 0.7169 GB Notification: Performance of sort global known variables: time 4.71e-07/0.976, allocations: 0 / 0.9566 GB, free: 10.63 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.006388/0.9824, allocations: 1.861 MB / 0.9584 GB, free: 8.77 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 12 * 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 (75): * Single equations (assignments): 64 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 8 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 1 * 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: 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 {(1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002201/0.9847, allocations: 0.8226 MB / 0.9592 GB, free: 7.945 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.01303/0.9977, allocations: 6.167 MB / 0.9653 GB, free: 1.789 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 1.929e-05/0.9978, allocations: 3.938 kB / 0.9653 GB, free: 1.785 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.002388/1, allocations: 0.7501 MB / 0.966 GB, free: 1.035 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00964/1.01, allocations: 2.206 MB / 0.9682 GB, free: 14.9 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01543/1.025, allocations: 7.464 MB / 0.9754 GB, free: 7.371 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002538/1.028, allocations: 2.52 MB / 0.9779 GB, free: 4.824 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001517/1.029, allocations: 339.2 kB / 0.9782 GB, free: 4.492 MB / 0.7325 GB Notification: Performance of SimCode: time 1.102e-06/1.029, allocations: 0 / 0.9782 GB, free: 4.492 MB / 0.7325 GB Notification: Performance of Templates: time 0.4448/1.474, allocations: 127.6 MB / 1.103 GB, free: 148.4 MB / 0.7325 GB make -j1 -f BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter.makefile (rm -f BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter.sim & ./BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Fluid.Movers.Examples.MoverParameter.pipe 2>&1)