Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel.conf.json
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo)
Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo)
Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo)
Using package Buildings with version 7.0.1 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo)
Running command: translateModel(Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel")
translateModel(Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel")
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo): time 2.538/2.538, allocations: 254.9 MB / 269.9 MB, free: 9.629 MB / 218.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00259/0.00259, allocations: 195.1 kB / 329.5 MB, free: 1.164 MB / 250.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 2.442/2.442, allocations: 225.6 MB / 0.6001 GB, free: 2.207 MB / 426.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009934/0.0009931, allocations: 85.25 kB / 0.7074 GB, free: 7.957 MB / 0.5261 GB
Notification: Performance of FrontEnd - loaded program: time 0.0006667/0.000667, allocations: 11.53 kB / 0.8242 GB, free: 124.4 MB / 0.5886 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.218/0.2187, allocations: 109.1 MB / 0.9308 GB, free: 25.14 MB / 0.5886 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel): time 0.02205/0.2408, allocations: 17.4 MB / 0.9478 GB, free: 7.68 MB / 0.5886 GB
Notification: Performance of NFInst.instExpressions: time 0.00746/0.2483, allocations: 4.638 MB / 0.9523 GB, free: 3.031 MB / 0.5886 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0005701/0.2489, allocations: 11.94 kB / 0.9523 GB, free: 3.02 MB / 0.5886 GB
Notification: Performance of NFTyping.typeComponents: time 0.0007323/0.2496, allocations: 162.9 kB / 0.9524 GB, free: 2.859 MB / 0.5886 GB
Notification: Performance of NFTyping.typeBindings: time 0.001687/0.2514, allocations: 453.6 kB / 0.9529 GB, free: 2.414 MB / 0.5886 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001968/0.2533, allocations: 474.9 kB / 0.9533 GB, free: 1.949 MB / 0.5886 GB
Notification: Performance of NFFlatten.flatten: time 0.001841/0.2552, allocations: 1.247 MB / 0.9546 GB, free: 0.6953 MB / 0.5886 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0005819/0.2558, allocations: 269 kB / 0.9548 GB, free: 444 kB / 0.5886 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001086/0.2569, allocations: 426 kB / 0.9552 GB, free: 16 kB / 0.5886 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0005936/0.2575, allocations: 270.8 kB / 0.9555 GB, free: 15.75 MB / 0.6042 GB
Notification: Performance of NFPackage.collectConstants: time 7.189e-05/0.2576, allocations: 19.94 kB / 0.9555 GB, free: 15.73 MB / 0.6042 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001481/0.2591, allocations: 475 kB / 0.9559 GB, free: 15.27 MB / 0.6042 GB
Notification: Performance of NFScalarize.scalarize: time 0.0001348/0.2593, allocations: 67.73 kB / 0.956 GB, free: 15.2 MB / 0.6042 GB
Notification: Performance of NFVerifyModel.verify: time 0.0001729/0.2595, allocations: 93.52 kB / 0.9561 GB, free: 15.1 MB / 0.6042 GB
Notification: Performance of NFConvertDAE.convert: time 0.0009209/0.2604, allocations: 435.2 kB / 0.9565 GB, free: 14.68 MB / 0.6042 GB
Notification: Performance of FrontEnd - DAE generated: time 8.556e-06/0.2604, allocations: 4 kB / 0.9565 GB, free: 14.67 MB / 0.6042 GB
Notification: Performance of FrontEnd: time 1.974e-06/0.2604, allocations: 0 / 0.9565 GB, free: 14.67 MB / 0.6042 GB
Notification: Performance of Transformations before backend: time 7.003e-06/0.2605, allocations: 0 / 0.9565 GB, free: 14.67 MB / 0.6042 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 54
 * Number of variables: 54
Notification: Performance of Generate backend data structure: time 0.00137/0.2618, allocations: 0.6545 MB / 0.9572 GB, free: 13.97 MB / 0.6042 GB
Notification: Performance of prepare preOptimizeDAE: time 4.403e-05/0.2619, allocations: 12.03 kB / 0.9572 GB, free: 13.96 MB / 0.6042 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001276/0.262, allocations: 40.47 kB / 0.9572 GB, free: 13.92 MB / 0.6042 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006951/0.2628, allocations: 351.8 kB / 0.9575 GB, free: 13.54 MB / 0.6042 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000104/0.2629, allocations: 46.14 kB / 0.9576 GB, free: 13.48 MB / 0.6042 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 5.892e-05/0.263, allocations: 24 kB / 0.9576 GB, free: 13.46 MB / 0.6042 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0007335/0.2637, allocations: 239.2 kB / 0.9578 GB, free: 13.22 MB / 0.6042 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.656e-05/0.2637, allocations: 4 kB / 0.9578 GB, free: 13.21 MB / 0.6042 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.899e-05/0.2638, allocations: 8 kB / 0.9578 GB, free: 13.21 MB / 0.6042 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.501e-05/0.2638, allocations: 8 kB / 0.9579 GB, free: 13.2 MB / 0.6042 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006002/0.2644, allocations: 161.6 kB / 0.958 GB, free: 13.04 MB / 0.6042 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 0.002145/0.2666, allocations: 1.096 MB / 0.9591 GB, free: 11.82 MB / 0.6042 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0003906/0.267, allocations: 114.6 kB / 0.9592 GB, free: 11.7 MB / 0.6042 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002585/0.2673, allocations: 72.81 kB / 0.9593 GB, free: 11.62 MB / 0.6042 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003711/0.2677, allocations: 328.4 kB / 0.9596 GB, free: 11.23 MB / 0.6042 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.752e-05/0.2677, allocations: 50.44 kB / 0.9596 GB, free: 11.17 MB / 0.6042 GB
Notification: Performance of pre-optimization done (n=10): time 2.916e-06/0.2677, allocations: 0 / 0.9596 GB, free: 11.17 MB / 0.6042 GB
Notification: Performance of matching and sorting (n=10): time 0.0008666/0.2686, allocations: 213.2 kB / 0.9598 GB, free: 10.96 MB / 0.6042 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.76e-05/0.2687, allocations: 67.33 kB / 0.9599 GB, free: 10.88 MB / 0.6042 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004837/0.2692, allocations: 321.7 kB / 0.9602 GB, free: 10.55 MB / 0.6042 GB
Notification: Performance of collectPreVariables (initialization): time 4.079e-05/0.2692, allocations: 33.7 kB / 0.9602 GB, free: 10.52 MB / 0.6042 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0001756/0.2694, allocations: 192.1 kB / 0.9604 GB, free: 10.32 MB / 0.6042 GB
Notification: Performance of collectInitialBindings (initialization): time 5.696e-05/0.2695, allocations: 43.39 kB / 0.9605 GB, free: 10.28 MB / 0.6042 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 9.859e-06/0.2695, allocations: 0 / 0.9605 GB, free: 10.28 MB / 0.6042 GB
Notification: Performance of setup shared object (initialization): time 0.0001402/0.2696, allocations: 338.8 kB / 0.9608 GB, free: 9.941 MB / 0.6042 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.000218/0.2699, allocations: 51.97 kB / 0.9608 GB, free: 9.891 MB / 0.6042 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003022/0.2702, allocations: 101.9 kB / 0.9609 GB, free: 9.77 MB / 0.6042 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0002415/0.2704, allocations: 59.91 kB / 0.961 GB, free: 9.711 MB / 0.6042 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.246e-06/0.2705, allocations: 0 / 0.961 GB, free: 9.711 MB / 0.6042 GB
Notification: Performance of matching and sorting (n=11) (initialization): time 0.0006248/0.2711, allocations: 181.2 kB / 0.9612 GB, free: 9.527 MB / 0.6042 GB
Notification: Performance of prepare postOptimizeDAE: time 7.33e-05/0.2712, allocations: 110.7 kB / 0.9613 GB, free: 9.406 MB / 0.6042 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.504e-06/0.2712, allocations: 0 / 0.9613 GB, free: 9.406 MB / 0.6042 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.719e-05/0.2712, allocations: 0 / 0.9613 GB, free: 9.406 MB / 0.6042 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000243/0.2715, allocations: 27.98 kB / 0.9613 GB, free: 9.379 MB / 0.6042 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.005e-06/0.2715, allocations: 4.156 kB / 0.9613 GB, free: 9.375 MB / 0.6042 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004375/0.272, allocations: 35.95 kB / 0.9613 GB, free: 9.34 MB / 0.6042 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.496e-05/0.272, allocations: 7.984 kB / 0.9613 GB, free: 9.332 MB / 0.6042 GB
Notification: Performance of prepare postOptimizeDAE: time 8.776e-06/0.272, allocations: 4 kB / 0.9613 GB, free: 9.328 MB / 0.6042 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0004893/0.2725, allocations: 123.8 kB / 0.9615 GB, free: 9.207 MB / 0.6042 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.935e-06/0.2725, allocations: 0 / 0.9615 GB, free: 9.207 MB / 0.6042 GB
Notification: Performance of postOpt tearingSystem (initialization): time 4.358e-06/0.2726, allocations: 0 / 0.9615 GB, free: 9.207 MB / 0.6042 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001955/0.2728, allocations: 31.92 kB / 0.9615 GB, free: 9.176 MB / 0.6042 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.296e-06/0.2728, allocations: 4.031 kB / 0.9615 GB, free: 9.172 MB / 0.6042 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004079/0.2732, allocations: 39.81 kB / 0.9615 GB, free: 9.133 MB / 0.6042 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.427e-05/0.2732, allocations: 7.984 kB / 0.9615 GB, free: 9.125 MB / 0.6042 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 3
 * 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 (11):
 * Single equations (assignments): 11
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of prepare postOptimizeDAE: time 0.0002604/0.2735, allocations: 225.6 kB / 0.9617 GB, free: 8.895 MB / 0.6042 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 8.509e-05/0.2736, allocations: 35.98 kB / 0.9618 GB, free: 8.859 MB / 0.6042 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0007872/0.2744, allocations: 220.6 kB / 0.962 GB, free: 8.637 MB / 0.6042 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.076e-05/0.2744, allocations: 3.984 kB / 0.962 GB, free: 8.633 MB / 0.6042 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.29e-06/0.2744, allocations: 8 kB / 0.962 GB, free: 8.625 MB / 0.6042 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.803e-06/0.2745, allocations: 7.875 kB / 0.962 GB, free: 8.617 MB / 0.6042 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001389/0.2759, allocations: 0.6373 MB / 0.9626 GB, free: 7.914 MB / 0.6042 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.512e-06/0.2759, allocations: 4 kB / 0.9626 GB, free: 7.91 MB / 0.6042 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001885/0.2761, allocations: 27.98 kB / 0.9627 GB, free: 7.883 MB / 0.6042 GB
Notification: Performance of postOpt tearingSystem (simulation): time 7.935e-06/0.2761, allocations: 3.938 kB / 0.9627 GB, free: 7.879 MB / 0.6042 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.901e-05/0.2761, allocations: 8 kB / 0.9627 GB, free: 7.871 MB / 0.6042 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.528e-06/0.2761, allocations: 0 / 0.9627 GB, free: 7.871 MB / 0.6042 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.435e-06/0.2762, allocations: 0 / 0.9627 GB, free: 7.871 MB / 0.6042 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0006645/0.2768, allocations: 317.7 kB / 0.963 GB, free: 7.535 MB / 0.6042 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001876/0.277, allocations: 132.7 kB / 0.9631 GB, free: 7.387 MB / 0.6042 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.987e-05/0.2771, allocations: 7.938 kB / 0.9631 GB, free: 7.379 MB / 0.6042 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005074/0.2776, allocations: 31.97 kB / 0.9631 GB, free: 7.348 MB / 0.6042 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.645e-05/0.2777, allocations: 11.98 kB / 0.9632 GB, free: 7.336 MB / 0.6042 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.206e-05/0.2777, allocations: 15.98 kB / 0.9632 GB, free: 7.32 MB / 0.6042 GB
Notification: Performance of sorting global known variables: time 0.0003726/0.2781, allocations: 235.2 kB / 0.9634 GB, free: 7.094 MB / 0.6042 GB
Notification: Performance of sort global known variables: time 4.61e-07/0.2781, allocations: 0 / 0.9634 GB, free: 7.094 MB / 0.6042 GB
Notification: Performance of remove unused functions: time 0.0007898/0.2789, allocations: 167.5 kB / 0.9636 GB, free: 6.93 MB / 0.6042 GB
Notification: Model statistics after passing the back-end for simulation:
 * 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 simulation (12):
 * Single equations (assignments): 10
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 2
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 0.0005946/0.2795, allocations: 225.6 kB / 0.9638 GB, free: 6.707 MB / 0.6042 GB
Notification: Performance of simCode: created initialization part: time 0.0008221/0.2804, allocations: 195.8 kB / 0.964 GB, free: 6.512 MB / 0.6042 GB
Notification: Performance of simCode: created event and clocks part: time 3.226e-06/0.2804, allocations: 0 / 0.964 GB, free: 6.512 MB / 0.6042 GB
Notification: Performance of simCode: created simulation system equations: time 0.0002882/0.2807, allocations: 79.89 kB / 0.964 GB, free: 6.434 MB / 0.6042 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001778/0.2825, allocations: 162.7 kB / 0.9642 GB, free: 6.277 MB / 0.6042 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001317/0.2838, allocations: 0.6522 MB / 0.9648 GB, free: 5.586 MB / 0.6042 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004057/0.2843, allocations: 0.7875 MB / 0.9656 GB, free: 4.77 MB / 0.6042 GB
Notification: Performance of simCode: alias equations: time 0.0004186/0.2847, allocations: 71.44 kB / 0.9657 GB, free: 4.699 MB / 0.6042 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 9.277e-05/0.2848, allocations: 35.42 kB / 0.9657 GB, free: 4.664 MB / 0.6042 GB
Notification: Performance of SimCode: time 1.292e-06/0.2848, allocations: 0 / 0.9657 GB, free: 4.664 MB / 0.6042 GB
Notification: Performance of Templates: time 0.02348/0.3083, allocations: 5.94 MB / 0.9715 GB, free: 14.8 MB / 0.6198 GB
make -j1 -f Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel.makefile
(rm -f Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel.pipe ; mkfifo Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel.pipe ; head -c 1048576 < Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel.pipe >> ../files/Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel.sim & ./Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_7.0.0_Buildings.Fluid.FixedResistances.Validation.PressureDropsParallel.pipe 2>&1)