Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector.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/Buildings 12.0.0-master/package.mo", uses=false)
Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-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(Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector")
translateModel(Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001424/0.001424, allocations: 107.3 kB / 15.33 MB, free: 0.5078 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001647/0.001647, allocations: 189.3 kB / 16.25 MB, free: 6.148 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.413/1.413, allocations: 222.9 MB / 239.9 MB, free: 4.523 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.749/2.749, allocations: 472.6 MB / 0.7448 GB, free: 4.875 MB / 0.5919 GB
Notification: Performance of FrontEnd - loaded program: time 0.001432/0.001432, allocations: 63.06 kB / 0.9115 GB, free: 33.61 MB / 0.7169 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3071/0.3085, allocations: 159.9 MB / 1.068 GB, free: 10.79 MB / 0.8262 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector): time 0.04423/0.3528, allocations: 41.65 MB / 1.108 GB, free: 0.9805 MB / 0.8575 GB
Notification: Performance of NFInst.instExpressions: time 0.01355/0.3664, allocations: 8.809 MB / 1.117 GB, free: 8.152 MB / 0.8731 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.00165/0.3681, allocations: 39.75 kB / 1.117 GB, free: 8.113 MB / 0.8731 GB
Notification: Performance of NFTyping.typeComponents: time 0.001918/0.37, allocations: 0.5055 MB / 1.118 GB, free: 7.605 MB / 0.8731 GB
Notification: Performance of NFTyping.typeBindings: time 0.00382/0.3739, allocations: 1.167 MB / 1.119 GB, free: 6.434 MB / 0.8731 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003357/0.3773, allocations: 1.1 MB / 1.12 GB, free: 5.344 MB / 0.8731 GB
Notification: Performance of NFFlatten.flatten: time 0.004038/0.3813, allocations: 2.7 MB / 1.122 GB, free: 2.637 MB / 0.8731 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001698/0.383, allocations: 0.9186 MB / 1.123 GB, free: 1.695 MB / 0.8731 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.00289/0.3859, allocations: 1.035 MB / 1.124 GB, free: 0.6602 MB / 0.8731 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0014/0.3874, allocations: 0.7701 MB / 1.125 GB, free: 15.89 MB / 0.8887 GB
Notification: Performance of NFPackage.collectConstants: time 0.0003233/0.3877, allocations: 120 kB / 1.125 GB, free: 15.77 MB / 0.8887 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.00266/0.3904, allocations: 1.201 MB / 1.126 GB, free: 14.57 MB / 0.8887 GB
Notification: Performance of NFScalarize.scalarize: time 0.000463/0.3908, allocations: 326.9 kB / 1.127 GB, free: 14.25 MB / 0.8887 GB
Notification: Performance of NFVerifyModel.verify: time 0.001254/0.3921, allocations: 0.6377 MB / 1.127 GB, free: 13.61 MB / 0.8887 GB
Notification: Performance of NFConvertDAE.convert: time 0.004429/0.3965, allocations: 2.329 MB / 1.13 GB, free: 11.27 MB / 0.8887 GB
Notification: Performance of FrontEnd - DAE generated: time 7.123e-06/0.3966, allocations: 0 / 1.13 GB, free: 11.27 MB / 0.8887 GB
Notification: Performance of FrontEnd: time 1.844e-06/0.3966, allocations: 0 / 1.13 GB, free: 11.27 MB / 0.8887 GB
Notification: Performance of Transformations before backend: time 7.162e-05/0.3967, allocations: 0 / 1.13 GB, free: 11.27 MB / 0.8887 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 157
 * Number of variables: 157
Notification: Performance of Generate backend data structure: time 0.00389/0.4005, allocations: 1.744 MB / 1.131 GB, free: 9.43 MB / 0.8887 GB
Notification: Performance of prepare preOptimizeDAE: time 5.165e-05/0.4006, allocations: 8.031 kB / 1.131 GB, free: 9.422 MB / 0.8887 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005184/0.4011, allocations: 131.4 kB / 1.131 GB, free: 9.293 MB / 0.8887 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.002152/0.4033, allocations: 1.054 MB / 1.132 GB, free: 8.191 MB / 0.8887 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.65e-05/0.4034, allocations: 49.31 kB / 1.132 GB, free: 8.145 MB / 0.8887 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001482/0.4035, allocations: 76 kB / 1.133 GB, free: 8.07 MB / 0.8887 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001556/0.4051, allocations: 0.8019 MB / 1.133 GB, free: 7.246 MB / 0.8887 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.596e-05/0.4051, allocations: 4 kB / 1.133 GB, free: 7.242 MB / 0.8887 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.312e-05/0.4052, allocations: 31.98 kB / 1.133 GB, free: 7.211 MB / 0.8887 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.887e-05/0.4052, allocations: 16 kB / 1.133 GB, free: 7.195 MB / 0.8887 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001171/0.4064, allocations: 0.6141 MB / 1.134 GB, free: 6.578 MB / 0.8887 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 0.004688/0.4111, allocations: 3.212 MB / 1.137 GB, free: 3.195 MB / 0.8887 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.000866/0.412, allocations: 454.9 kB / 1.138 GB, free: 2.742 MB / 0.8887 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0004891/0.4125, allocations: 314.5 kB / 1.138 GB, free: 2.434 MB / 0.8887 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0008536/0.4134, allocations: 0.7675 MB / 1.139 GB, free: 1.5 MB / 0.8887 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.75e-05/0.4134, allocations: 50.42 kB / 1.139 GB, free: 1.441 MB / 0.8887 GB
Notification: Performance of pre-optimization done (n=38): time 2.745e-06/0.4134, allocations: 0 / 1.139 GB, free: 1.441 MB / 0.8887 GB
Notification: Performance of matching and sorting (n=38): time 0.001793/0.4152, allocations: 0.9945 MB / 1.14 GB, free: 432 kB / 0.8887 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 7.676e-05/0.4153, allocations: 136.5 kB / 1.14 GB, free: 264 kB / 0.8887 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001634/0.4169, allocations: 1.079 MB / 1.141 GB, free: 15.16 MB / 0.9044 GB
Notification: Performance of collectPreVariables (initialization): time 5.909e-05/0.417, allocations: 37.7 kB / 1.141 GB, free: 15.12 MB / 0.9044 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0003905/0.4174, allocations: 472.5 kB / 1.141 GB, free: 14.65 MB / 0.9044 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001373/0.4176, allocations: 130.2 kB / 1.141 GB, free: 14.52 MB / 0.9044 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001927/0.4178, allocations: 110 kB / 1.141 GB, free: 14.41 MB / 0.9044 GB
Notification: Performance of setup shared object (initialization): time 0.0001252/0.4179, allocations: 326 kB / 1.142 GB, free: 14.09 MB / 0.9044 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005236/0.4184, allocations: 354.6 kB / 1.142 GB, free: 13.73 MB / 0.9044 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006308/0.4191, allocations: 454.7 kB / 1.143 GB, free: 13.26 MB / 0.9044 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.00118/0.4203, allocations: 0.9754 MB / 1.144 GB, free: 12.21 MB / 0.9044 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.208e-06/0.4203, allocations: 0 / 1.144 GB, free: 12.21 MB / 0.9044 GB
Notification: Performance of matching and sorting (n=62) (initialization): time 0.001635/0.4219, allocations: 1.1 MB / 1.145 GB, free: 11.07 MB / 0.9044 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0001185/0.422, allocations: 186.2 kB / 1.145 GB, free: 10.85 MB / 0.9044 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.486e-06/0.4221, allocations: 0 / 1.145 GB, free: 10.85 MB / 0.9044 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.837e-05/0.4221, allocations: 4 kB / 1.145 GB, free: 10.84 MB / 0.9044 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003682/0.4225, allocations: 95.83 kB / 1.145 GB, free: 10.75 MB / 0.9044 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.213e-05/0.4225, allocations: 4 kB / 1.145 GB, free: 10.75 MB / 0.9044 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000723/0.4232, allocations: 99.53 kB / 1.145 GB, free: 10.65 MB / 0.9044 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.512e-05/0.4233, allocations: 20 kB / 1.145 GB, free: 10.63 MB / 0.9044 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0008739/0.4242, allocations: 0.6024 MB / 1.146 GB, free: 10.02 MB / 0.9044 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006336/0.4248, allocations: 446.7 kB / 1.146 GB, free: 9.543 MB / 0.9044 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001156/0.426, allocations: 0.9669 MB / 1.147 GB, free: 8.5 MB / 0.9044 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.835e-06/0.426, allocations: 4 kB / 1.147 GB, free: 8.496 MB / 0.9044 GB
Notification: Performance of matching and sorting (n=62) (initialization_lambda0): time 0.001597/0.4276, allocations: 1.098 MB / 1.148 GB, free: 7.352 MB / 0.9044 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0001319/0.4277, allocations: 186.2 kB / 1.148 GB, free: 7.133 MB / 0.9044 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.582e-06/0.4278, allocations: 7.938 kB / 1.148 GB, free: 7.125 MB / 0.9044 GB
Notification: Performance of postOpt tearingSystem (initialization): time 7.844e-06/0.4278, allocations: 4 kB / 1.148 GB, free: 7.121 MB / 0.9044 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003527/0.4281, allocations: 92.11 kB / 1.148 GB, free: 7.031 MB / 0.9044 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.095e-06/0.4281, allocations: 4 kB / 1.148 GB, free: 7.027 MB / 0.9044 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007196/0.4289, allocations: 83.66 kB / 1.148 GB, free: 6.945 MB / 0.9044 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.8e-05/0.4289, allocations: 31.98 kB / 1.148 GB, free: 6.914 MB / 0.9044 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 8
 * Number of states: 0 ()
 * Number of discrete variables: 3 (con.mod.airFlo_mod.i,con.mod.watFlo_mod.i,con.mod.temDif_mod.i)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (53):
 * Single equations (assignments): 47
 * Array equations: 0
 * Algorithm blocks: 6
 * 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 0.0002818/0.4292, allocations: 305.8 kB / 1.149 GB, free: 6.59 MB / 0.9044 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002301/0.4295, allocations: 102.7 kB / 1.149 GB, free: 6.488 MB / 0.9044 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001536/0.431, allocations: 0.912 MB / 1.15 GB, free: 5.551 MB / 0.9044 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.043e-05/0.431, allocations: 8 kB / 1.15 GB, free: 5.543 MB / 0.9044 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.891e-06/0.4311, allocations: 0 / 1.15 GB, free: 5.543 MB / 0.9044 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001147/0.4322, allocations: 0.9837 MB / 1.151 GB, free: 4.473 MB / 0.9044 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00341/0.4356, allocations: 2.106 MB / 1.153 GB, free: 2.246 MB / 0.9044 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.584e-06/0.4357, allocations: 4 kB / 1.153 GB, free: 2.242 MB / 0.9044 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003062/0.436, allocations: 63.91 kB / 1.153 GB, free: 2.18 MB / 0.9044 GB
Notification: Performance of postOpt tearingSystem (simulation): time 1.055e-05/0.436, allocations: 7.938 kB / 1.153 GB, free: 2.172 MB / 0.9044 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.541e-05/0.436, allocations: 15.98 kB / 1.153 GB, free: 2.156 MB / 0.9044 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.005e-06/0.4361, allocations: 7.938 kB / 1.153 GB, free: 2.148 MB / 0.9044 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.599e-06/0.4361, allocations: 4 kB / 1.153 GB, free: 2.145 MB / 0.9044 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001988/0.4381, allocations: 1.394 MB / 1.154 GB, free: 0.6914 MB / 0.9044 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0004674/0.4385, allocations: 279.6 kB / 1.154 GB, free: 408 kB / 0.9044 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001998/0.4387, allocations: 23.92 kB / 1.154 GB, free: 384 kB / 0.9044 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006206/0.4394, allocations: 48.02 kB / 1.155 GB, free: 336 kB / 0.9044 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000132/0.4395, allocations: 43.95 kB / 1.155 GB, free: 292 kB / 0.9044 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.286e-05/0.4396, allocations: 27.97 kB / 1.155 GB, free: 264 kB / 0.9044 GB
Notification: Performance of sorting global known variables: time 0.001256/0.4408, allocations: 0.769 MB / 1.155 GB, free: 15.48 MB / 0.92 GB
Notification: Performance of sort global known variables: time 1.71e-07/0.4408, allocations: 4 kB / 1.155 GB, free: 15.47 MB / 0.92 GB
Notification: Performance of remove unused functions: time 0.001613/0.4425, allocations: 0.5187 MB / 1.156 GB, free: 14.95 MB / 0.92 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 10
 * Number of states: 2 (con.hex.vol.dynBal.U,senTem.T)
 * Number of discrete variables: 3 (con.mod.temDif_mod.i,con.mod.watFlo_mod.i,con.mod.airFlo_mod.i)
 * Number of discrete states: 3 (con.mod.airFlo_mod.i,con.mod.watFlo_mod.i,con.mod.temDif_mod.i)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (38):
 * Single equations (assignments): 31
 * Array equations: 0
 * Algorithm blocks: 3
 * Record equations: 4
 * When equations: 0
 * 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 0.001024/0.4435, allocations: 391.7 kB / 1.156 GB, free: 14.58 MB / 0.92 GB
Notification: Performance of simCode: created initialization part: time 0.00257/0.4461, allocations: 1.977 MB / 1.158 GB, free: 12.45 MB / 0.92 GB
Notification: Performance of simCode: created event and clocks part: time 4.658e-06/0.4461, allocations: 0 / 1.158 GB, free: 12.45 MB / 0.92 GB
Notification: Performance of simCode: created simulation system equations: time 0.0007111/0.4468, allocations: 0.5426 MB / 1.159 GB, free: 11.88 MB / 0.92 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002596/0.4494, allocations: 0.5432 MB / 1.159 GB, free: 11.35 MB / 0.92 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003296/0.4527, allocations: 2.222 MB / 1.161 GB, free: 9.062 MB / 0.92 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007557/0.4535, allocations: 1.072 MB / 1.162 GB, free: 7.961 MB / 0.92 GB
Notification: Performance of simCode: alias equations: time 0.0008337/0.4544, allocations: 212.7 kB / 1.163 GB, free: 7.762 MB / 0.92 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001967/0.4546, allocations: 75.42 kB / 1.163 GB, free: 7.688 MB / 0.92 GB
Notification: Performance of SimCode: time 7.71e-07/0.4546, allocations: 0 / 1.163 GB, free: 7.688 MB / 0.92 GB
Notification: Performance of Templates: time 0.04372/0.4983, allocations: 23.99 MB / 1.186 GB, free: 36 kB / 0.9356 GB
make -j1 -f Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector.makefile
(rm -f Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector.pipe ; mkfifo Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector.pipe >> ../files/Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector.sim & ./Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector  -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.Convector.pipe 2>&1)