Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries.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/IDEAS 3.0.0/package.mo", uses=false)
Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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(IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries")
translateModel(IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001073/0.001073, allocations: 108 kB / 15.61 MB, free: 152 kB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001083/0.001083, allocations: 197 kB / 16.53 MB, free: 6.664 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 / 240.2 MB, free: 4.387 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7236/0.7236, allocations: 132.2 MB / 422.6 MB, free: 1.766 MB / 350.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001181/0.001181, allocations: 68.52 kB / 0.5018 GB, free: 3.863 MB / 366.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.404/0.4052, allocations: 80.21 MB / 0.5801 GB, free: 4.523 MB / 430.1 MB
Notification: Performance of NFInst.instantiate(IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries): time 0.1706/0.5758, allocations: 161.5 MB / 0.7378 GB, free: 15.41 MB / 0.5762 GB
Notification: Performance of NFInst.instExpressions: time 0.002805/0.5786, allocations: 1.712 MB / 0.7395 GB, free: 13.69 MB / 0.5762 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0003052/0.5789, allocations: 11.94 kB / 0.7395 GB, free: 13.68 MB / 0.5762 GB
Notification: Performance of NFTyping.typeComponents: time 0.0005649/0.5795, allocations: 154.9 kB / 0.7397 GB, free: 13.53 MB / 0.5762 GB
Notification: Performance of NFTyping.typeBindings: time 0.001158/0.5807, allocations: 0.5198 MB / 0.7402 GB, free: 13.01 MB / 0.5762 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0009921/0.5817, allocations: 411.2 kB / 0.7406 GB, free: 12.61 MB / 0.5762 GB
Notification: Performance of NFFlatten.flatten: time 0.002143/0.5839, allocations: 2.452 MB / 0.743 GB, free: 10.15 MB / 0.5762 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001052/0.5849, allocations: 0.9332 MB / 0.7439 GB, free: 9.203 MB / 0.5762 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001298/0.5862, allocations: 0.9264 MB / 0.7448 GB, free: 8.273 MB / 0.5762 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0007158/0.587, allocations: 0.7078 MB / 0.7455 GB, free: 7.562 MB / 0.5762 GB
Notification: Performance of NFPackage.collectConstants: time 0.0001034/0.5871, allocations: 59.98 kB / 0.7455 GB, free: 7.504 MB / 0.5762 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001243/0.5883, allocations: 0.7445 MB / 0.7463 GB, free: 6.758 MB / 0.5762 GB
Notification: Performance of NFScalarize.scalarize: time 0.0002924/0.5886, allocations: 306.9 kB / 0.7465 GB, free: 6.457 MB / 0.5762 GB
Notification: Performance of NFVerifyModel.verify: time 0.0005243/0.5892, allocations: 0.5401 MB / 0.7471 GB, free: 5.914 MB / 0.5762 GB
Notification: Performance of NFConvertDAE.convert: time 0.001332/0.5905, allocations: 1.386 MB / 0.7484 GB, free: 4.523 MB / 0.5762 GB
Notification: Performance of FrontEnd - DAE generated: time 3.967e-06/0.5905, allocations: 3.938 kB / 0.7484 GB, free: 4.52 MB / 0.5762 GB
Notification: Performance of FrontEnd: time 1.072e-06/0.5905, allocations: 0 / 0.7484 GB, free: 4.52 MB / 0.5762 GB
Notification: Performance of Transformations before backend: time 1.244e-05/0.5905, allocations: 0 / 0.7484 GB, free: 4.52 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: 122
 * Number of variables: 122
Notification: Performance of Generate backend data structure: time 0.001864/0.5924, allocations: 1.404 MB / 0.7498 GB, free: 3.059 MB / 0.5762 GB
Notification: Performance of prepare preOptimizeDAE: time 3.763e-05/0.5925, allocations: 8.031 kB / 0.7498 GB, free: 3.051 MB / 0.5762 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007043/0.5932, allocations: 194.5 kB / 0.75 GB, free: 2.859 MB / 0.5762 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009905/0.5942, allocations: 0.7943 MB / 0.7508 GB, free: 2.023 MB / 0.5762 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.279e-05/0.5942, allocations: 41 kB / 0.7508 GB, free: 1.984 MB / 0.5762 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 8.186e-05/0.5943, allocations: 60 kB / 0.7509 GB, free: 1.926 MB / 0.5762 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009528/0.5953, allocations: 0.6784 MB / 0.7515 GB, free: 1.238 MB / 0.5762 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.364e-05/0.5953, allocations: 3.938 kB / 0.7515 GB, free: 1.234 MB / 0.5762 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.497e-05/0.5953, allocations: 20 kB / 0.7516 GB, free: 1.215 MB / 0.5762 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.192e-05/0.5953, allocations: 19.98 kB / 0.7516 GB, free: 1.195 MB / 0.5762 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007981/0.5961, allocations: 0.5229 MB / 0.7521 GB, free: 0.668 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 0.002992/0.5991, allocations: 3.257 MB / 0.7553 GB, free: 13.04 MB / 0.5919 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0005274/0.5997, allocations: 400 kB / 0.7556 GB, free: 12.65 MB / 0.5919 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0003249/0.6, allocations: 238.2 kB / 0.7559 GB, free: 12.41 MB / 0.5919 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002734/0.6003, allocations: 194.2 kB / 0.7561 GB, free: 12.19 MB / 0.5919 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.524e-05/0.6004, allocations: 42.55 kB / 0.7561 GB, free: 12.14 MB / 0.5919 GB
Notification: Performance of pre-optimization done (n=28): time 1.543e-06/0.6004, allocations: 0 / 0.7561 GB, free: 12.14 MB / 0.5919 GB
Notification: Performance of matching and sorting (n=28): time 0.004389/0.6048, allocations: 1.479 MB / 0.7575 GB, free: 10.63 MB / 0.5919 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.394e-05/0.6048, allocations: 51.41 kB / 0.7576 GB, free: 10.57 MB / 0.5919 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001122/0.6059, allocations: 1.08 MB / 0.7586 GB, free: 9.465 MB / 0.5919 GB
Notification: Performance of collectPreVariables (initialization): time 3.738e-05/0.606, allocations: 33.7 kB / 0.7587 GB, free: 9.426 MB / 0.5919 GB
Notification: Performance of collectInitialEqns (initialization): time 0.000328/0.6063, allocations: 436.5 kB / 0.7591 GB, free: 8.996 MB / 0.5919 GB
Notification: Performance of collectInitialBindings (initialization): time 8.537e-05/0.6064, allocations: 98.5 kB / 0.7592 GB, free: 8.898 MB / 0.5919 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001048/0.6065, allocations: 69.69 kB / 0.7593 GB, free: 8.824 MB / 0.5919 GB
Notification: Performance of setup shared object (initialization): time 0.0001003/0.6066, allocations: 318 kB / 0.7596 GB, free: 8.508 MB / 0.5919 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.000266/0.6069, allocations: 168.6 kB / 0.7597 GB, free: 8.34 MB / 0.5919 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003935/0.6073, allocations: 354.8 kB / 0.7601 GB, free: 7.922 MB / 0.5919 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0005522/0.6078, allocations: 387.1 kB / 0.7604 GB, free: 7.531 MB / 0.5919 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.519e-06/0.6079, allocations: 3.938 kB / 0.7604 GB, free: 7.527 MB / 0.5919 GB
Notification: Performance of matching and sorting (n=28) (initialization): time 0.001825/0.6097, allocations: 0.8064 MB / 0.7612 GB, free: 6.711 MB / 0.5919 GB
Notification: Performance of prepare postOptimizeDAE: time 1.665e-05/0.6097, allocations: 4 kB / 0.7612 GB, free: 6.707 MB / 0.5919 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.991e-06/0.6097, allocations: 4 kB / 0.7612 GB, free: 6.703 MB / 0.5919 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.001403/0.6111, allocations: 368.3 kB / 0.7616 GB, free: 6.34 MB / 0.5919 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001154/0.6113, allocations: 15.98 kB / 0.7616 GB, free: 6.324 MB / 0.5919 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008989/0.6122, allocations: 1.007 MB / 0.7626 GB, free: 5.293 MB / 0.5919 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004388/0.6126, allocations: 47.72 kB / 0.7626 GB, free: 5.246 MB / 0.5919 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.206e-05/0.6127, allocations: 11.94 kB / 0.7626 GB, free: 5.234 MB / 0.5919 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005199/0.6132, allocations: 451.8 kB / 0.7631 GB, free: 4.789 MB / 0.5919 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0003351/0.6135, allocations: 313.2 kB / 0.7634 GB, free: 4.41 MB / 0.5919 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0004423/0.614, allocations: 306 kB / 0.7637 GB, free: 4.102 MB / 0.5919 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.857e-06/0.614, allocations: 7.938 kB / 0.7637 GB, free: 4.094 MB / 0.5919 GB
Notification: Performance of matching and sorting (n=28) (initialization_lambda0): time 0.001048/0.6151, allocations: 0.5923 MB / 0.7642 GB, free: 3.492 MB / 0.5919 GB
Notification: Performance of prepare postOptimizeDAE: time 1.019e-05/0.6151, allocations: 8 kB / 0.7642 GB, free: 3.484 MB / 0.5919 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.154e-06/0.6151, allocations: 0 / 0.7642 GB, free: 3.484 MB / 0.5919 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0004799/0.6156, allocations: 208.6 kB / 0.7644 GB, free: 3.277 MB / 0.5919 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 9.58e-05/0.6157, allocations: 16.09 kB / 0.7645 GB, free: 3.262 MB / 0.5919 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003441/0.6191, allocations: 3.318 MB / 0.7677 GB, free: 15.8 MB / 0.6075 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005337/0.6197, allocations: 40.19 kB / 0.7677 GB, free: 15.76 MB / 0.6075 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.016e-05/0.6197, allocations: 15.98 kB / 0.7678 GB, free: 15.74 MB / 0.6075 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 4
 * 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 (9):
 * Single equations (assignments): 8
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * 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
   {(1,19)}
Notification: Performance of prepare postOptimizeDAE: time 0.00016/0.6199, allocations: 200.3 kB / 0.7679 GB, free: 15.54 MB / 0.6075 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001385/0.62, allocations: 90.88 kB / 0.768 GB, free: 15.45 MB / 0.6075 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001167/0.6212, allocations: 0.7039 MB / 0.7687 GB, free: 14.73 MB / 0.6075 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.08e-06/0.6212, allocations: 4 kB / 0.7687 GB, free: 14.73 MB / 0.6075 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 3.747e-06/0.6212, allocations: 3.938 kB / 0.7687 GB, free: 14.73 MB / 0.6075 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.616e-06/0.6212, allocations: 3.938 kB / 0.7687 GB, free: 14.72 MB / 0.6075 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002127/0.6234, allocations: 1.508 MB / 0.7702 GB, free: 13.14 MB / 0.6075 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.059e-06/0.6234, allocations: 4 kB / 0.7702 GB, free: 13.13 MB / 0.6075 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 9.579e-05/0.6235, allocations: 15.98 kB / 0.7702 GB, free: 13.12 MB / 0.6075 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0004206/0.6239, allocations: 220.8 kB / 0.7704 GB, free: 12.9 MB / 0.6075 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.093e-05/0.6239, allocations: 12 kB / 0.7704 GB, free: 12.89 MB / 0.6075 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008356/0.6248, allocations: 0.9824 MB / 0.7714 GB, free: 11.88 MB / 0.6075 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.124e-06/0.6248, allocations: 0 / 0.7714 GB, free: 11.88 MB / 0.6075 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001032/0.6258, allocations: 0.8075 MB / 0.7722 GB, free: 11.03 MB / 0.6075 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0002536/0.6261, allocations: 207.9 kB / 0.7724 GB, free: 10.81 MB / 0.6075 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.948e-05/0.6262, allocations: 8 kB / 0.7724 GB, free: 10.8 MB / 0.6075 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003433/0.6265, allocations: 19.97 kB / 0.7724 GB, free: 10.78 MB / 0.6075 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 6.132e-05/0.6266, allocations: 31.91 kB / 0.7724 GB, free: 10.75 MB / 0.6075 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.928e-05/0.6266, allocations: 8 kB / 0.7725 GB, free: 10.74 MB / 0.6075 GB
Notification: Performance of sorting global known variables: time 0.000873/0.6275, allocations: 0.763 MB / 0.7732 GB, free: 9.969 MB / 0.6075 GB
Notification: Performance of sort global known variables: time 2.2e-07/0.6275, allocations: 4 kB / 0.7732 GB, free: 9.965 MB / 0.6075 GB
Notification: Performance of remove unused functions: time 0.0009512/0.6285, allocations: 399.4 kB / 0.7736 GB, free: 9.574 MB / 0.6075 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 8
 * 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 (9):
 * Single equations (assignments): 8
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * 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
   {(1,19)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0003734/0.6289, allocations: 171.5 kB / 0.7737 GB, free: 9.402 MB / 0.6075 GB
Notification: Performance of simCode: created initialization part: time 0.001342/0.6302, allocations: 0.7612 MB / 0.7745 GB, free: 8.625 MB / 0.6075 GB
Notification: Performance of simCode: created event and clocks part: time 2.896e-06/0.6302, allocations: 0 / 0.7745 GB, free: 8.625 MB / 0.6075 GB
Notification: Performance of simCode: created simulation system equations: time 0.0003885/0.6306, allocations: 217 kB / 0.7747 GB, free: 8.418 MB / 0.6075 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001875/0.6325, allocations: 490.3 kB / 0.7752 GB, free: 7.949 MB / 0.6075 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002078/0.6346, allocations: 1.707 MB / 0.7768 GB, free: 6.188 MB / 0.6075 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006667/0.6353, allocations: 1.176 MB / 0.778 GB, free: 4.984 MB / 0.6075 GB
Notification: Performance of simCode: alias equations: time 0.0005676/0.6358, allocations: 211.3 kB / 0.7782 GB, free: 4.773 MB / 0.6075 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 9.634e-05/0.6359, allocations: 55.44 kB / 0.7782 GB, free: 4.719 MB / 0.6075 GB
Notification: Performance of SimCode: time 3.81e-07/0.636, allocations: 0 / 0.7782 GB, free: 4.719 MB / 0.6075 GB
Notification: Performance of Templates: time 0.03103/0.667, allocations: 19.75 MB / 0.7975 GB, free: 1.238 MB / 0.6231 GB
make -j1 -f IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries.makefile
(rm -f IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries.pipe ; mkfifo IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries.pipe >> ../files/IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries.sim & ./IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsSeries.pipe 2>&1)