Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear.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/IBPSA 4.0.0-master/package.mo", uses=false)
Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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(IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear")
translateModel(IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001352/0.001352, allocations: 105.8 kB / 16.4 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 0.001256/0.001256, allocations: 189.7 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 1.288/1.288, allocations: 222.9 MB / 241 MB, free: 15.14 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6912/0.6912, allocations: 115.3 MB / 406.5 MB, free: 6.102 MB / 318.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001143/0.001143, allocations: 64.86 kB / 0.5577 GB, free: 32.21 MB / 446.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1182/0.1194, allocations: 76.18 MB / 0.6321 GB, free: 4.363 MB / 478.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear): time 0.05247/0.1719, allocations: 58.53 MB / 0.6892 GB, free: 9.621 MB / 0.5294 GB
Notification: Performance of NFInst.instExpressions: time 0.02627/0.1982, allocations: 19.95 MB / 0.7087 GB, free: 5.613 MB / 0.545 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.003107/0.2013, allocations: 87.5 kB / 0.7088 GB, free: 5.527 MB / 0.545 GB
Notification: Performance of NFTyping.typeComponents: time 0.005541/0.2069, allocations: 1.986 MB / 0.7107 GB, free: 3.535 MB / 0.545 GB
Notification: Performance of NFTyping.typeBindings: time 0.00721/0.2141, allocations: 2.963 MB / 0.7136 GB, free: 0.5586 MB / 0.545 GB
Notification: Performance of NFTyping.typeClassSections: time 0.005329/0.2195, allocations: 2.34 MB / 0.7159 GB, free: 14.23 MB / 0.5606 GB
Notification: Performance of NFFlatten.flatten: time 0.01895/0.2384, allocations: 14.42 MB / 0.73 GB, free: 15.79 MB / 0.5762 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.002974/0.2414, allocations: 1.815 MB / 0.7318 GB, free: 13.95 MB / 0.5762 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.005347/0.2468, allocations: 2.119 MB / 0.7338 GB, free: 11.82 MB / 0.5762 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.002677/0.2495, allocations: 1.572 MB / 0.7354 GB, free: 10.25 MB / 0.5762 GB
Notification: Performance of NFPackage.collectConstants: time 0.0004691/0.2499, allocations: 212 kB / 0.7356 GB, free: 10.04 MB / 0.5762 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.004466/0.2544, allocations: 2.344 MB / 0.7379 GB, free: 7.691 MB / 0.5762 GB
Notification: Performance of NFScalarize.scalarize: time 0.0008076/0.2552, allocations: 0.8995 MB / 0.7387 GB, free: 6.789 MB / 0.5762 GB
Notification: Performance of NFVerifyModel.verify: time 0.001507/0.2568, allocations: 1.415 MB / 0.7401 GB, free: 5.367 MB / 0.5762 GB
Notification: Performance of NFConvertDAE.convert: time 0.006892/0.2637, allocations: 4.681 MB / 0.7447 GB, free: 0.6719 MB / 0.5762 GB
Notification: Performance of FrontEnd - DAE generated: time 5.51e-06/0.2637, allocations: 0 / 0.7447 GB, free: 0.6719 MB / 0.5762 GB
Notification: Performance of FrontEnd: time 1.653e-06/0.2637, allocations: 0 / 0.7447 GB, free: 0.6719 MB / 0.5762 GB
Notification: Performance of Transformations before backend: time 5.335e-05/0.2638, allocations: 0 / 0.7447 GB, free: 0.6719 MB / 0.5762 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 266
 * Number of variables: 266
Notification: Performance of Generate backend data structure: time 0.2976/0.5614, allocations: 3.261 MB / 0.7479 GB, free: 108.9 MB / 0.5762 GB
Notification: Performance of prepare preOptimizeDAE: time 4.169e-05/0.5615, allocations: 9.844 kB / 0.7479 GB, free: 108.9 MB / 0.5762 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005167/0.5666, allocations: 0.9388 MB / 0.7488 GB, free: 108.7 MB / 0.5762 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006974/0.5736, allocations: 3.568 MB / 0.7523 GB, free: 107.2 MB / 0.5762 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.783e-05/0.5737, allocations: 88.62 kB / 0.7524 GB, free: 107.1 MB / 0.5762 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001895/0.5739, allocations: 122.8 kB / 0.7525 GB, free: 107.1 MB / 0.5762 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.002939/0.5769, allocations: 1.511 MB / 0.754 GB, free: 106.5 MB / 0.5762 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.28e-05/0.5769, allocations: 8.766 kB / 0.754 GB, free: 106.4 MB / 0.5762 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001175/0.577, allocations: 46.28 kB / 0.754 GB, free: 106.4 MB / 0.5762 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.007e-05/0.577, allocations: 30.67 kB / 0.754 GB, free: 106.4 MB / 0.5762 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002916/0.58, allocations: 1.328 MB / 0.7553 GB, free: 106 MB / 0.5762 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 0.008235/0.5882, allocations: 7.161 MB / 0.7623 GB, free: 100.9 MB / 0.5762 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.002682/0.5909, allocations: 1.018 MB / 0.7633 GB, free: 100.5 MB / 0.5762 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.001162/0.5921, allocations: 0.5015 MB / 0.7638 GB, free: 100.2 MB / 0.5762 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.003133/0.5952, allocations: 3.018 MB / 0.7668 GB, free: 97.57 MB / 0.5762 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.111e-05/0.5953, allocations: 42.59 kB / 0.7668 GB, free: 97.52 MB / 0.5762 GB
Notification: Performance of pre-optimization done (n=58): time 1.853e-06/0.5953, allocations: 1.156 kB / 0.7668 GB, free: 97.52 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=58): time 0.004265/0.5995, allocations: 1.705 MB / 0.7685 GB, free: 96.67 MB / 0.5762 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.25e-05/0.5996, allocations: 69.44 kB / 0.7685 GB, free: 96.61 MB / 0.5762 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003204/0.6028, allocations: 2.663 MB / 0.7711 GB, free: 95.16 MB / 0.5762 GB
Notification: Performance of collectPreVariables (initialization): time 0.0001416/0.6029, allocations: 40.17 kB / 0.7712 GB, free: 95.12 MB / 0.5762 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006267/0.6036, allocations: 1.056 MB / 0.7722 GB, free: 94.21 MB / 0.5762 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001729/0.6038, allocations: 211.4 kB / 0.7724 GB, free: 94.03 MB / 0.5762 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004614/0.6042, allocations: 435.7 kB / 0.7728 GB, free: 93.8 MB / 0.5762 GB
Notification: Performance of setup shared object (initialization): time 3.933e-05/0.6043, allocations: 305.1 kB / 0.7731 GB, free: 93.5 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.001607/0.6059, allocations: 1.151 MB / 0.7742 GB, free: 92.95 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.00182/0.6077, allocations: 1.559 MB / 0.7758 GB, free: 91.93 MB / 0.5762 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.003102/0.6108, allocations: 2.462 MB / 0.7782 GB, free: 90.57 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.813e-06/0.6108, allocations: 3.938 kB / 0.7782 GB, free: 90.57 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=234) (initialization): time 0.004408/0.6153, allocations: 3.045 MB / 0.7811 GB, free: 87.79 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 2.105e-05/0.6153, allocations: 8.438 kB / 0.7812 GB, free: 87.78 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.26e-05/0.6153, allocations: 8 kB / 0.7812 GB, free: 87.77 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0003839/0.6157, allocations: 108.8 kB / 0.7813 GB, free: 87.66 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001236/0.617, allocations: 355.4 kB / 0.7816 GB, free: 87.32 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0003359/0.6173, allocations: 0.607 MB / 0.7822 GB, free: 86.68 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001891/0.6192, allocations: 238.5 kB / 0.7824 GB, free: 86.45 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001289/0.6193, allocations: 108 kB / 0.7825 GB, free: 86.35 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002047/0.6214, allocations: 1.507 MB / 0.784 GB, free: 84.84 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001509/0.6229, allocations: 1.37 MB / 0.7853 GB, free: 83.33 MB / 0.5762 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002647/0.6256, allocations: 2.098 MB / 0.7874 GB, free: 81.12 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.499e-06/0.6256, allocations: 0 / 0.7874 GB, free: 81.12 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=234) (initialization_lambda0): time 0.004096/0.6297, allocations: 2.682 MB / 0.79 GB, free: 78.42 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 1.738e-05/0.6297, allocations: 8 kB / 0.79 GB, free: 78.41 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.012e-05/0.6297, allocations: 8 kB / 0.79 GB, free: 78.41 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.000472/0.6302, allocations: 124.5 kB / 0.7901 GB, free: 78.29 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001118/0.6313, allocations: 335.5 kB / 0.7905 GB, free: 77.96 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003258/0.6346, allocations: 2.824 MB / 0.7932 GB, free: 74.95 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001908/0.6365, allocations: 186.9 kB / 0.7934 GB, free: 74.76 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001193/0.6367, allocations: 87.97 kB / 0.7935 GB, free: 74.68 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 37
 * 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 (164):
 * Single equations (assignments): 159
 * Array equations: 2
 * Algorithm blocks: 0
 * Record equations: 2
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
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
   {(1,4)}
Notification: Performance of prepare postOptimizeDAE: time 0.0003526/0.637, allocations: 256.4 kB / 0.7937 GB, free: 74.42 MB / 0.5762 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002868/0.6373, allocations: 236.8 kB / 0.7939 GB, free: 74.18 MB / 0.5762 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003251/0.6406, allocations: 1.574 MB / 0.7955 GB, free: 72.61 MB / 0.5762 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.484e-05/0.6406, allocations: 11.98 kB / 0.7955 GB, free: 72.6 MB / 0.5762 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.164e-06/0.6406, allocations: 0 / 0.7955 GB, free: 72.6 MB / 0.5762 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.386e-06/0.6406, allocations: 3.984 kB / 0.7955 GB, free: 72.6 MB / 0.5762 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004714/0.6453, allocations: 3.155 MB / 0.7986 GB, free: 69.37 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.712e-06/0.6454, allocations: 4 kB / 0.7986 GB, free: 69.37 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008089/0.6462, allocations: 172 kB / 0.7987 GB, free: 69.2 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.00021/0.6464, allocations: 64.58 kB / 0.7988 GB, free: 69.14 MB / 0.5762 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.64e-05/0.6465, allocations: 31.97 kB / 0.7988 GB, free: 69.11 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0002669/0.6467, allocations: 0.5914 MB / 0.7994 GB, free: 68.49 MB / 0.5762 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.878e-06/0.6468, allocations: 11.94 kB / 0.7994 GB, free: 68.48 MB / 0.5762 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00307/0.6498, allocations: 1.528 MB / 0.8009 GB, free: 66.9 MB / 0.5762 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.00105/0.6509, allocations: 441.5 kB / 0.8013 GB, free: 66.45 MB / 0.5762 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000356/0.6513, allocations: 16 kB / 0.8014 GB, free: 66.43 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001114/0.6524, allocations: 83.91 kB / 0.8014 GB, free: 66.35 MB / 0.5762 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001092/0.6525, allocations: 58.77 kB / 0.8015 GB, free: 66.29 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.293e-05/0.6526, allocations: 57.39 kB / 0.8016 GB, free: 66.24 MB / 0.5762 GB
Notification: Performance of sorting global known variables: time 0.002136/0.6547, allocations: 1.773 MB / 0.8033 GB, free: 64.46 MB / 0.5762 GB
Notification: Performance of sort global known variables: time 1.6e-07/0.6547, allocations: 0 / 0.8033 GB, free: 64.46 MB / 0.5762 GB
Notification: Performance of remove unused functions: time 0.002955/0.6577, allocations: 1.257 MB / 0.8045 GB, free: 63.26 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 9
 * 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 (69):
 * Single equations (assignments): 60
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 8
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
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
   {(1,5)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.001496/0.6592, allocations: 0.77 MB / 0.8053 GB, free: 62.55 MB / 0.5762 GB
Notification: Performance of simCode: created initialization part: time 0.005245/0.6645, allocations: 3.474 MB / 0.8087 GB, free: 59.07 MB / 0.5762 GB
Notification: Performance of simCode: created event and clocks part: time 4.799e-06/0.6645, allocations: 4 kB / 0.8087 GB, free: 59.07 MB / 0.5762 GB
Notification: Performance of simCode: created simulation system equations: time 0.001215/0.6657, allocations: 0.5789 MB / 0.8092 GB, free: 58.5 MB / 0.5762 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004316/0.67, allocations: 1.23 MB / 0.8104 GB, free: 57.34 MB / 0.5762 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004942/0.675, allocations: 4.091 MB / 0.8144 GB, free: 53.19 MB / 0.5762 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008812/0.6759, allocations: 1.737 MB / 0.8161 GB, free: 51.42 MB / 0.5762 GB
Notification: Performance of simCode: alias equations: time 0.002125/0.678, allocations: 0.7082 MB / 0.8168 GB, free: 50.74 MB / 0.5762 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004488/0.6785, allocations: 195.3 kB / 0.817 GB, free: 50.55 MB / 0.5762 GB
Notification: Performance of SimCode: time 5.51e-07/0.6785, allocations: 0 / 0.817 GB, free: 50.55 MB / 0.5762 GB
Notification: Performance of Templates: time 0.0659/0.7444, allocations: 53.81 MB / 0.8695 GB, free: 13.23 MB / 0.5919 GB
make -j1 -f IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear.makefile
(rm -f IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear.sim & ./IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Movers.Validation.SpeedControlled_y_linear.pipe 2>&1)