Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo)
Using package Buildings with version 8.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo)
Running command: translateModel(Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2")
translateModel(Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.706/1.706, allocations: 288.4 MB / 303.7 MB, free: 8.102 MB / 234.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001113/0.001113, allocations: 190.5 kB / 372.3 MB, free: 10.14 MB / 298.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.507/1.507, allocations: 205.4 MB / 0.631 GB, free: 9.891 MB / 458.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0008371/0.0008371, allocations: 102.2 kB / 0.7444 GB, free: 5.805 MB / 0.5573 GB
Notification: Performance of FrontEnd - loaded program: time 0.0004644/0.0004644, allocations: 12.16 kB / 0.8675 GB, free: 141.8 MB / 0.6198 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2189/0.2194, allocations: 115.3 MB / 0.9801 GB, free: 27.36 MB / 0.6198 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2): time 0.03289/0.2523, allocations: 43.13 MB / 1.022 GB, free: 96 kB / 0.6355 GB
Notification: Performance of NFInst.instExpressions: time 0.01684/0.2692, allocations: 11.8 MB / 1.034 GB, free: 4.277 MB / 0.6511 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.002386/0.2716, allocations: 51.62 kB / 1.034 GB, free: 4.227 MB / 0.6511 GB
Notification: Performance of NFTyping.typeComponents: time 0.001879/0.2735, allocations: 0.5473 MB / 1.034 GB, free: 3.676 MB / 0.6511 GB
Notification: Performance of NFTyping.typeBindings: time 0.006501/0.28, allocations: 2 MB / 1.036 GB, free: 1.672 MB / 0.6511 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003399/0.2835, allocations: 1.029 MB / 1.037 GB, free: 0.6523 MB / 0.6511 GB
Notification: Performance of NFFlatten.flatten: time 0.01388/0.2974, allocations: 14.57 MB / 1.052 GB, free: 2.043 MB / 0.6667 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.007525/0.3049, allocations: 4.591 MB / 1.056 GB, free: 13.38 MB / 0.6823 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.008271/0.3132, allocations: 3.354 MB / 1.059 GB, free: 10.01 MB / 0.6823 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.007937/0.3212, allocations: 3.4 MB / 1.063 GB, free: 6.598 MB / 0.6823 GB
Notification: Performance of NFPackage.collectConstants: time 0.003185/0.3245, allocations: 192 kB / 1.063 GB, free: 6.41 MB / 0.6823 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.01085/0.3354, allocations: 1.439 MB / 1.064 GB, free: 4.969 MB / 0.6823 GB
Notification: Performance of NFScalarize.scalarize: time 0.004779/0.3402, allocations: 0.9844 MB / 1.065 GB, free: 3.98 MB / 0.6823 GB
Notification: Performance of NFVerifyModel.verify: time 0.007235/0.3475, allocations: 2.238 MB / 1.067 GB, free: 1.727 MB / 0.6823 GB
Notification: Performance of NFConvertDAE.convert: time 0.53/0.8776, allocations: 6.441 MB / 1.074 GB, free: 29.27 MB / 0.6823 GB
Notification: Performance of FrontEnd - DAE generated: time 1.039e-05/0.8777, allocations: 3.375 kB / 1.074 GB, free: 29.27 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 3.647e-06/0.8777, allocations: 2.516 kB / 1.074 GB, free: 29.27 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0003924/0.8781, allocations: 0 / 1.074 GB, free: 29.27 MB / 0.6823 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 746
 * Number of variables: 746
Notification: Performance of Generate backend data structure: time 0.01459/0.8927, allocations: 4.47 MB / 1.078 GB, free: 27.37 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 5.127e-05/0.8927, allocations: 12.33 kB / 1.078 GB, free: 27.37 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00851/0.9013, allocations: 1.222 MB / 1.079 GB, free: 27.1 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.01572/0.917, allocations: 5.405 MB / 1.085 GB, free: 26.29 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003279/0.9174, allocations: 229.6 kB / 1.085 GB, free: 26.29 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001495/0.9189, allocations: 302 kB / 1.085 GB, free: 26.28 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01105/0.93, allocations: 4.461 MB / 1.089 GB, free: 25.75 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 8.967e-05/0.9301, allocations: 10.3 kB / 1.089 GB, free: 25.75 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005286/0.9306, allocations: 122.5 kB / 1.089 GB, free: 25.75 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001856/0.9308, allocations: 138.2 kB / 1.09 GB, free: 25.74 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008793/0.9396, allocations: 3.785 MB / 1.093 GB, free: 25.71 MB / 0.6823 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 0.03695/0.9766, allocations: 20.3 MB / 1.113 GB, free: 15.57 MB / 0.6823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.004558/0.9812, allocations: 2.209 MB / 1.115 GB, free: 15.53 MB / 0.6823 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.002082/0.9833, allocations: 1.27 MB / 1.117 GB, free: 15.51 MB / 0.6823 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004785/0.9838, allocations: 0.5364 MB / 1.117 GB, free: 14.93 MB / 0.6823 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.92e-05/0.9839, allocations: 56.75 kB / 1.117 GB, free: 14.89 MB / 0.6823 GB
Notification: Performance of pre-optimization done (n=160): time 5.149e-06/0.9839, allocations: 0 / 1.117 GB, free: 14.89 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=160): time 0.02299/1.007, allocations: 6.174 MB / 1.123 GB, free: 12.3 MB / 0.6823 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.755e-05/1.007, allocations: 68.38 kB / 1.123 GB, free: 12.23 MB / 0.6823 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00614/1.013, allocations: 3.085 MB / 1.126 GB, free: 11.43 MB / 0.6823 GB
Notification: Performance of collectPreVariables (initialization): time 0.0009813/1.014, allocations: 65.36 kB / 1.126 GB, free: 11.4 MB / 0.6823 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001683/1.016, allocations: 1.743 MB / 1.128 GB, free: 10.57 MB / 0.6823 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001009/1.017, allocations: 0.5474 MB / 1.129 GB, free: 10.18 MB / 0.6823 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001791/1.017, allocations: 47.78 kB / 1.129 GB, free: 10.18 MB / 0.6823 GB
Notification: Performance of setup shared object (initialization): time 0.000145/1.017, allocations: 397.8 kB / 1.129 GB, free: 9.844 MB / 0.6823 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.003326/1.021, allocations: 1.353 MB / 1.13 GB, free: 9.566 MB / 0.6823 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.003454/1.024, allocations: 1.924 MB / 1.132 GB, free: 8.629 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.005166/1.029, allocations: 3.003 MB / 1.135 GB, free: 7.664 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.333e-05/1.029, allocations: 5.156 kB / 1.135 GB, free: 7.664 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=281) (initialization): time 0.01387/1.043, allocations: 4.927 MB / 1.14 GB, free: 6.461 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0005032/1.044, allocations: 0.527 MB / 1.14 GB, free: 5.816 MB / 0.6823 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.634e-05/1.044, allocations: 12.34 kB / 1.14 GB, free: 5.816 MB / 0.6823 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01564/1.059, allocations: 2.876 MB / 1.143 GB, free: 4.605 MB / 0.6823 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002613/1.062, allocations: 492 kB / 1.144 GB, free: 4.496 MB / 0.6823 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01343/1.075, allocations: 5.619 MB / 1.149 GB, free: 16.33 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.008211/1.084, allocations: 453.1 kB / 1.15 GB, free: 16.08 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009973/1.085, allocations: 113.8 kB / 1.15 GB, free: 16.04 MB / 0.698 GB
Notification: Performance of prepare postOptimizeDAE: time 1.689e-05/1.085, allocations: 3.906 kB / 1.15 GB, free: 16.04 MB / 0.698 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02159/1.106, allocations: 4.597 MB / 1.154 GB, free: 13.75 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.771e-05/1.107, allocations: 16 kB / 1.154 GB, free: 13.73 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.02656/1.133, allocations: 2.803 MB / 1.157 GB, free: 10.93 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004288/1.137, allocations: 466.1 kB / 1.157 GB, free: 10.5 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01923/1.157, allocations: 4.414 MB / 1.162 GB, free: 6.023 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.008048/1.165, allocations: 410.2 kB / 1.162 GB, free: 5.621 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000939/1.166, allocations: 103.7 kB / 1.162 GB, free: 5.523 MB / 0.698 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 65
 * 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 (217):
 * Single equations (assignments): 212
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 2
 * Torn equation systems: 3
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 2 {1,1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 3 {3 8,5 40,5 6}
Notification: Performance of prepare postOptimizeDAE: time 0.006277/1.172, allocations: 1.476 MB / 1.164 GB, free: 4.059 MB / 0.698 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00252/1.175, allocations: 324.1 kB / 1.164 GB, free: 3.738 MB / 0.698 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01031/1.185, allocations: 3.026 MB / 1.167 GB, free: 0.7031 MB / 0.698 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.128e-05/1.185, allocations: 23.98 kB / 1.167 GB, free: 0.6797 MB / 0.698 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.974e-05/1.185, allocations: 4 kB / 1.167 GB, free: 0.6758 MB / 0.698 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.007331/1.192, allocations: 2.466 MB / 1.169 GB, free: 14.19 MB / 0.7136 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 postOpt removeSimpleEquations (simulation): time 0.02418/1.217, allocations: 6.654 MB / 1.176 GB, free: 7.477 MB / 0.7136 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.359e-05/1.217, allocations: 0 / 1.176 GB, free: 7.477 MB / 0.7136 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002776/1.22, allocations: 294.4 kB / 1.176 GB, free: 7.199 MB / 0.7136 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.00572/1.225, allocations: 0.8676 MB / 1.177 GB, free: 6.324 MB / 0.7136 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003502/1.226, allocations: 51.92 kB / 1.177 GB, free: 6.273 MB / 0.7136 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01403/1.24, allocations: 9.978 MB / 1.187 GB, free: 11.61 MB / 0.7292 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.777e-06/1.24, allocations: 0 / 1.187 GB, free: 11.61 MB / 0.7292 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01282/1.253, allocations: 4.327 MB / 1.191 GB, free: 7.246 MB / 0.7292 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.004486/1.257, allocations: 0.7309 MB / 1.192 GB, free: 6.492 MB / 0.7292 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00161/1.259, allocations: 34.34 kB / 1.192 GB, free: 6.461 MB / 0.7292 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004812/1.264, allocations: 266.8 kB / 1.192 GB, free: 6.203 MB / 0.7292 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004191/1.264, allocations: 109.8 kB / 1.192 GB, free: 6.094 MB / 0.7292 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003437/1.264, allocations: 83.94 kB / 1.192 GB, free: 6.012 MB / 0.7292 GB
Notification: Performance of sorting global known variables: time 0.005959/1.27, allocations: 2.133 MB / 1.194 GB, free: 3.887 MB / 0.7292 GB
Notification: Performance of sort global known variables: time 3.2e-07/1.27, allocations: 0 / 1.194 GB, free: 3.887 MB / 0.7292 GB
Notification: Performance of remove unused functions: time 0.01376/1.284, allocations: 2.209 MB / 1.196 GB, free: 1.672 MB / 0.7292 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 4
 * Number of states: 5 (rad1.vol[1].dynBal.U,rad1.vol[2].dynBal.U,rad1.vol[3].dynBal.U,rad1.vol[4].dynBal.U,rad1.vol[5].dynBal.U)
 * 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 (123):
 * Single equations (assignments): 113
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 2
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 2
 * Torn equation systems: 6
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 2 {1,1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 5 {(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1}
 * Non-linear torn systems: 1 {5 50}
Notification: Performance of Backend phase and start with SimCode phase: time 0.002153/1.286, allocations: 471 kB / 1.197 GB, free: 1.25 MB / 0.7292 GB
Notification: Performance of simCode: created initialization part: time 0.03236/1.319, allocations: 5.808 MB / 1.203 GB, free: 11.57 MB / 0.7448 GB
Notification: Performance of simCode: created event and clocks part: time 1.32e-05/1.319, allocations: 4.25 kB / 1.203 GB, free: 11.57 MB / 0.7448 GB
Notification: Performance of simCode: created simulation system equations: time 0.005259/1.324, allocations: 1.77 MB / 1.204 GB, free: 9.766 MB / 0.7448 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01784/1.342, allocations: 1.828 MB / 1.206 GB, free: 7.969 MB / 0.7448 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02518/1.367, allocations: 9.113 MB / 1.215 GB, free: 14.86 MB / 0.7605 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.005049/1.372, allocations: 2.95 MB / 1.218 GB, free: 11.88 MB / 0.7605 GB
Notification: Performance of simCode: alias equations: time 0.008973/1.381, allocations: 1.265 MB / 1.219 GB, free: 10.62 MB / 0.7605 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001192/1.383, allocations: 231.4 kB / 1.219 GB, free: 10.4 MB / 0.7605 GB
Notification: Performance of SimCode: time 1.222e-06/1.383, allocations: 0 / 1.219 GB, free: 10.4 MB / 0.7605 GB
Notification: Performance of Templates: time 0.1814/1.564, allocations: 84.28 MB / 1.302 GB, free: 6.918 MB / 0.8386 GB
make -j1 -f Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.makefile
(rm -f Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe ; mkfifo Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe ; head -c 1048576 < Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe >> ../files/Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.sim & ./Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.8.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe 2>&1)