Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.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.Examples.Performance.PressureDrop.ParallelDpOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised")
translateModel(IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001372/0.001372, allocations: 104.3 kB / 16.52 MB, free: 6.27 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001376/0.001376, allocations: 196 kB / 17.44 MB, free: 5.887 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.312/1.312, allocations: 222.9 MB / 241.1 MB, free: 13.75 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6957/0.6957, allocations: 115.3 MB / 406.6 MB, free: 6.469 MB / 318.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001578/0.001578, allocations: 63.89 kB / 493.6 MB, free: 0.793 MB / 398.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4074/0.409, allocations: 76.17 MB / 0.5564 GB, free: 35.54 MB / 446.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised): time 0.182/0.5911, allocations: 159.3 MB / 0.712 GB, free: 4.797 MB / 0.545 GB
Notification: Performance of NFInst.instExpressions: time 0.005517/0.5967, allocations: 3.642 MB / 0.7155 GB, free: 1.141 MB / 0.545 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0005306/0.5972, allocations: 15.88 kB / 0.7156 GB, free: 1.125 MB / 0.545 GB
Notification: Performance of NFTyping.typeComponents: time 0.0007462/0.598, allocations: 139.2 kB / 0.7157 GB, free: 0.9883 MB / 0.545 GB
Notification: Performance of NFTyping.typeBindings: time 0.001589/0.5996, allocations: 0.4902 MB / 0.7162 GB, free: 0.4961 MB / 0.545 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001309/0.601, allocations: 386.6 kB / 0.7165 GB, free: 128 kB / 0.545 GB
Notification: Performance of NFFlatten.flatten: time 0.003657/0.6046, allocations: 3.515 MB / 0.72 GB, free: 12.6 MB / 0.5606 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.002889/0.6075, allocations: 2.247 MB / 0.7222 GB, free: 10.34 MB / 0.5606 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.002183/0.6097, allocations: 0.9258 MB / 0.7231 GB, free: 9.414 MB / 0.5606 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001289/0.6111, allocations: 0.735 MB / 0.7238 GB, free: 8.676 MB / 0.5606 GB
Notification: Performance of NFPackage.collectConstants: time 0.0002542/0.6113, allocations: 40 kB / 0.7238 GB, free: 8.637 MB / 0.5606 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001959/0.6133, allocations: 0.8107 MB / 0.7246 GB, free: 7.824 MB / 0.5606 GB
Notification: Performance of NFScalarize.scalarize: time 0.0004853/0.6138, allocations: 290.9 kB / 0.7249 GB, free: 7.539 MB / 0.5606 GB
Notification: Performance of NFVerifyModel.verify: time 0.001095/0.6149, allocations: 0.5205 MB / 0.7254 GB, free: 7.016 MB / 0.5606 GB
Notification: Performance of NFConvertDAE.convert: time 0.001549/0.6165, allocations: 1.033 MB / 0.7264 GB, free: 5.98 MB / 0.5606 GB
Notification: Performance of FrontEnd - DAE generated: time 4.728e-06/0.6165, allocations: 4 kB / 0.7264 GB, free: 5.977 MB / 0.5606 GB
Notification: Performance of FrontEnd: time 4.068e-06/0.6165, allocations: 0 / 0.7264 GB, free: 5.977 MB / 0.5606 GB
Notification: Performance of Transformations before backend: time 4.728e-05/0.6165, allocations: 3.938 kB / 0.7264 GB, free: 5.973 MB / 0.5606 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 125
 * Number of variables: 125
Notification: Performance of Generate backend data structure: time 0.002996/0.6195, allocations: 1.451 MB / 0.7278 GB, free: 4.457 MB / 0.5606 GB
Notification: Performance of prepare preOptimizeDAE: time 4.722e-05/0.6196, allocations: 19.95 kB / 0.7278 GB, free: 4.438 MB / 0.5606 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0009122/0.6205, allocations: 182.5 kB / 0.728 GB, free: 4.258 MB / 0.5606 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00151/0.622, allocations: 0.8101 MB / 0.7288 GB, free: 3.391 MB / 0.5606 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.816e-05/0.6221, allocations: 45 kB / 0.7289 GB, free: 3.348 MB / 0.5606 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001199/0.6222, allocations: 56 kB / 0.7289 GB, free: 3.293 MB / 0.5606 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001358/0.6236, allocations: 0.8315 MB / 0.7297 GB, free: 2.387 MB / 0.5606 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.683e-05/0.6236, allocations: 0 / 0.7297 GB, free: 2.387 MB / 0.5606 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.69e-05/0.6237, allocations: 24 kB / 0.7297 GB, free: 2.363 MB / 0.5606 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.973e-05/0.6237, allocations: 12 kB / 0.7298 GB, free: 2.352 MB / 0.5606 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000996/0.6247, allocations: 0.5695 MB / 0.7303 GB, free: 1.777 MB / 0.5606 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 0.004074/0.6288, allocations: 4.208 MB / 0.7344 GB, free: 13.3 MB / 0.5762 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0007493/0.6296, allocations: 438.2 kB / 0.7348 GB, free: 12.87 MB / 0.5762 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0004724/0.63, allocations: 341 kB / 0.7352 GB, free: 12.54 MB / 0.5762 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003351/0.6304, allocations: 198.2 kB / 0.7354 GB, free: 12.3 MB / 0.5762 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005386/0.6309, allocations: 319.1 kB / 0.7357 GB, free: 11.97 MB / 0.5762 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.0003158/0.6313, allocations: 31.59 kB / 0.7357 GB, free: 11.94 MB / 0.5762 GB
Notification: Performance of pre-optimization done (n=33): time 3.516e-06/0.6313, allocations: 96 / 0.7357 GB, free: 11.94 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=33): time 0.00144/0.6327, allocations: 0.7033 MB / 0.7364 GB, free: 11.23 MB / 0.5762 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 6.112e-05/0.6328, allocations: 85.05 kB / 0.7365 GB, free: 11.13 MB / 0.5762 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001351/0.6342, allocations: 1.155 MB / 0.7376 GB, free: 9.957 MB / 0.5762 GB
Notification: Performance of collectPreVariables (initialization): time 4.499e-05/0.6342, allocations: 41.7 kB / 0.7376 GB, free: 9.91 MB / 0.5762 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0004032/0.6346, allocations: 492.4 kB / 0.7381 GB, free: 9.426 MB / 0.5762 GB
Notification: Performance of collectInitialBindings (initialization): time 9.173e-05/0.6347, allocations: 118.4 kB / 0.7382 GB, free: 9.309 MB / 0.5762 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001706/0.6349, allocations: 118.2 kB / 0.7383 GB, free: 9.188 MB / 0.5762 GB
Notification: Performance of setup shared object (initialization): time 0.0001219/0.635, allocations: 322 kB / 0.7386 GB, free: 8.867 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003913/0.6354, allocations: 234.9 kB / 0.7389 GB, free: 8.637 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.000618/0.636, allocations: 0.5395 MB / 0.7394 GB, free: 7.965 MB / 0.5762 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0009136/0.637, allocations: 0.6824 MB / 0.74 GB, free: 7.203 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.91e-06/0.637, allocations: 0 / 0.74 GB, free: 7.203 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=56) (initialization): time 0.001235/0.6382, allocations: 0.7751 MB / 0.7408 GB, free: 6.414 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 4.352e-05/0.6383, allocations: 37.8 kB / 0.7408 GB, free: 6.371 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.088e-05/0.6383, allocations: 4 kB / 0.7408 GB, free: 6.367 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.957e-05/0.6383, allocations: 8 kB / 0.7408 GB, free: 6.359 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004934/0.6388, allocations: 111.8 kB / 0.741 GB, free: 6.25 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.555e-05/0.6389, allocations: 15.92 kB / 0.741 GB, free: 6.234 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008034/0.6397, allocations: 79.77 kB / 0.741 GB, free: 6.156 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.679e-05/0.6397, allocations: 27.98 kB / 0.7411 GB, free: 6.129 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007199/0.6405, allocations: 0.5164 MB / 0.7416 GB, free: 5.609 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0005628/0.641, allocations: 0.5091 MB / 0.7421 GB, free: 4.965 MB / 0.5762 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007695/0.6418, allocations: 0.6036 MB / 0.7427 GB, free: 4.281 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.665e-06/0.6418, allocations: 0 / 0.7427 GB, free: 4.281 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=56) (initialization_lambda0): time 0.001096/0.6429, allocations: 0.6891 MB / 0.7433 GB, free: 3.578 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 3.622e-05/0.643, allocations: 33.7 kB / 0.7434 GB, free: 3.539 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.993e-06/0.643, allocations: 8 kB / 0.7434 GB, free: 3.531 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 8.045e-06/0.643, allocations: 8 kB / 0.7434 GB, free: 3.523 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004222/0.6434, allocations: 111.8 kB / 0.7435 GB, free: 3.414 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.379e-05/0.6434, allocations: 16.33 kB / 0.7435 GB, free: 3.398 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007821/0.6442, allocations: 84.17 kB / 0.7436 GB, free: 3.316 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.983e-05/0.6443, allocations: 31.94 kB / 0.7436 GB, free: 3.285 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 24
 * Number of states: 0 ()
 * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (55):
 * Single equations (assignments): 54
 * Array equations: 0
 * Algorithm blocks: 1
 * 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 0.0001974/0.6445, allocations: 214.8 kB / 0.7438 GB, free: 3.07 MB / 0.5762 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001295/0.6446, allocations: 106.7 kB / 0.7439 GB, free: 2.965 MB / 0.5762 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009287/0.6456, allocations: 0.539 MB / 0.7445 GB, free: 2.418 MB / 0.5762 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.959e-06/0.6456, allocations: 7.984 kB / 0.7445 GB, free: 2.41 MB / 0.5762 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.981e-06/0.6456, allocations: 4 kB / 0.7445 GB, free: 2.406 MB / 0.5762 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.868e-06/0.6456, allocations: 7.922 kB / 0.7445 GB, free: 2.398 MB / 0.5762 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002171/0.6478, allocations: 1.495 MB / 0.7459 GB, free: 0.8281 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.117e-06/0.6478, allocations: 0 / 0.7459 GB, free: 0.8281 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003087/0.6481, allocations: 71.88 kB / 0.746 GB, free: 0.7578 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (simulation): time 8.186e-06/0.6481, allocations: 4 kB / 0.746 GB, free: 0.7539 MB / 0.5762 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.596e-05/0.6482, allocations: 8 kB / 0.746 GB, free: 0.7461 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 7.174e-06/0.6482, allocations: 7.984 kB / 0.746 GB, free: 0.7383 MB / 0.5762 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.104e-06/0.6482, allocations: 4.219 kB / 0.746 GB, free: 0.7344 MB / 0.5762 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.000866/0.6491, allocations: 0.662 MB / 0.7467 GB, free: 40 kB / 0.5762 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.3321/0.9812, allocations: 219.4 kB / 0.7469 GB, free: 173.7 MB / 0.5762 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001662/0.9814, allocations: 9.516 kB / 0.7469 GB, free: 173.7 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007135/0.9821, allocations: 54.98 kB / 0.7469 GB, free: 173.7 MB / 0.5762 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001365/0.9823, allocations: 30.2 kB / 0.747 GB, free: 173.7 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.798e-05/0.9823, allocations: 10.22 kB / 0.747 GB, free: 173.7 MB / 0.5762 GB
Notification: Performance of sorting global known variables: time 0.001601/0.9839, allocations: 0.8219 MB / 0.7478 GB, free: 173.6 MB / 0.5762 GB
Notification: Performance of sort global known variables: time 4.4e-07/0.9839, allocations: 0.6875 kB / 0.7478 GB, free: 173.6 MB / 0.5762 GB
Notification: Performance of remove unused functions: time 0.00173/0.9857, allocations: 429.8 kB / 0.7482 GB, free: 173.6 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 8
 * Number of states: 0 ()
 * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count)
 * Number of discrete states: 1 (pulse_p.count)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (33):
 * Single equations (assignments): 31
 * 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 0.0004948/0.9862, allocations: 173.9 kB / 0.7484 GB, free: 173.5 MB / 0.5762 GB
Notification: Performance of simCode: created initialization part: time 0.001647/0.9878, allocations: 0.9047 MB / 0.7492 GB, free: 173.2 MB / 0.5762 GB
Notification: Performance of simCode: created event and clocks part: time 3.296e-06/0.9879, allocations: 0 / 0.7492 GB, free: 173.2 MB / 0.5762 GB
Notification: Performance of simCode: created simulation system equations: time 0.000434/0.9883, allocations: 227.6 kB / 0.7495 GB, free: 173.1 MB / 0.5762 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003126/0.9914, allocations: 0.6279 MB / 0.7501 GB, free: 173 MB / 0.5762 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003315/0.9948, allocations: 2.117 MB / 0.7521 GB, free: 171.9 MB / 0.5762 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005635/0.9954, allocations: 1.173 MB / 0.7533 GB, free: 171.2 MB / 0.5762 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000303/0.9957, allocations: 81.56 kB / 0.7534 GB, free: 171.2 MB / 0.5762 GB
Notification: Performance of SimCode: time 1.242e-06/0.9957, allocations: 0.5938 kB / 0.7534 GB, free: 171.2 MB / 0.5762 GB
Notification: Performance of Templates: time 0.03388/1.03, allocations: 17.2 MB / 0.7702 GB, free: 166.7 MB / 0.5762 GB
make -j1 -f IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.makefile
(rm -f IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.sim & ./IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.pipe 2>&1)