Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.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.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD")
translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001257/0.001257, allocations: 104 kB / 16.94 MB, free: 6.191 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001264/0.001264, allocations: 191.4 kB / 17.86 MB, free: 5.293 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.333/1.333, allocations: 222.9 MB / 241.6 MB, free: 15.27 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7679/0.7679, allocations: 122.9 MB / 414.6 MB, free: 15.89 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001525/0.001525, allocations: 63.91 kB / 0.4918 GB, free: 7.422 MB / 414.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3786/0.3801, allocations: 77.91 MB / 0.5678 GB, free: 32.73 MB / 446.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD): time 0.019/0.3991, allocations: 16.35 MB / 0.5838 GB, free: 21.93 MB / 446.1 MB
Notification: Performance of NFInst.instExpressions: time 0.009249/0.4085, allocations: 5.882 MB / 0.5896 GB, free: 17.4 MB / 446.1 MB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001642/0.4101, allocations: 43.69 kB / 0.5896 GB, free: 17.4 MB / 446.1 MB
Notification: Performance of NFTyping.typeComponents: time 0.003549/0.4137, allocations: 1.37 MB / 0.5909 GB, free: 16.34 MB / 446.1 MB
Notification: Performance of NFTyping.typeBindings: time 0.003028/0.4168, allocations: 1.025 MB / 0.5919 GB, free: 15.53 MB / 446.1 MB
Notification: Performance of NFTyping.typeClassSections: time 0.00268/0.4195, allocations: 1.034 MB / 0.5929 GB, free: 14.72 MB / 446.1 MB
Notification: Performance of NFFlatten.flatten: time 0.004657/0.4241, allocations: 4.139 MB / 0.597 GB, free: 12.44 MB / 446.1 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.005386/0.4296, allocations: 5.429 MB / 0.6023 GB, free: 7.461 MB / 446.1 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.002669/0.4323, allocations: 1.827 MB / 0.6041 GB, free: 5.629 MB / 446.1 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.003328/0.4356, allocations: 2.197 MB / 0.6062 GB, free: 3.426 MB / 446.1 MB
Notification: Performance of NFPackage.collectConstants: time 0.0008524/0.4365, allocations: 432 kB / 0.6066 GB, free: 3.004 MB / 446.1 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.002316/0.4388, allocations: 1.116 MB / 0.6077 GB, free: 1.887 MB / 446.1 MB
Notification: Performance of NFScalarize.scalarize: time 0.001634/0.4405, allocations: 1.708 MB / 0.6094 GB, free: 180 kB / 446.1 MB
Notification: Performance of NFVerifyModel.verify: time 0.003121/0.4436, allocations: 1.689 MB / 0.611 GB, free: 14.47 MB / 462.1 MB
Notification: Performance of NFConvertDAE.convert: time 0.007403/0.4511, allocations: 6.28 MB / 0.6172 GB, free: 8.18 MB / 462.1 MB
Notification: Performance of FrontEnd - DAE generated: time 7.273e-06/0.4511, allocations: 0 / 0.6172 GB, free: 8.18 MB / 462.1 MB
Notification: Performance of FrontEnd: time 2.145e-06/0.4511, allocations: 0 / 0.6172 GB, free: 8.18 MB / 462.1 MB
Notification: Performance of Transformations before backend: time 0.0001427/0.4513, allocations: 0 / 0.6172 GB, free: 8.18 MB / 462.1 MB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 769
 * Number of variables: 769
Notification: Performance of Generate backend data structure: time 0.006943/0.4582, allocations: 2.947 MB / 0.6201 GB, free: 5.172 MB / 462.1 MB
Notification: Performance of prepare preOptimizeDAE: time 4.287e-05/0.4583, allocations: 12.03 kB / 0.6201 GB, free: 5.16 MB / 462.1 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01103/0.4693, allocations: 2.003 MB / 0.622 GB, free: 3.152 MB / 462.1 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.003566/0.4729, allocations: 1.581 MB / 0.6236 GB, free: 1.527 MB / 462.1 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002052/0.4731, allocations: 222.1 kB / 0.6238 GB, free: 1.309 MB / 462.1 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.000982/0.4741, allocations: 276.4 kB / 0.624 GB, free: 1.039 MB / 462.1 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01376/0.4879, allocations: 5.692 MB / 0.6296 GB, free: 11.25 MB / 478.1 MB
Notification: Performance of preOpt findStateOrder (simulation): time 6.567e-05/0.488, allocations: 4 kB / 0.6296 GB, free: 11.25 MB / 478.1 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004517/0.4885, allocations: 120 kB / 0.6297 GB, free: 11.13 MB / 478.1 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003504/0.4888, allocations: 200.7 kB / 0.6299 GB, free: 10.93 MB / 478.1 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01477/0.5036, allocations: 5.828 MB / 0.6356 GB, free: 5.086 MB / 478.1 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02836/0.532, allocations: 22.58 MB / 0.6576 GB, free: 12.48 MB / 0.4981 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.005984/0.5381, allocations: 3.022 MB / 0.6606 GB, free: 9.289 MB / 0.4981 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004837/0.5429, allocations: 1.952 MB / 0.6625 GB, free: 7.316 MB / 0.4981 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002032/0.5432, allocations: 122 kB / 0.6626 GB, free: 7.18 MB / 0.4981 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.914e-05/0.5432, allocations: 51.5 kB / 0.6627 GB, free: 7.117 MB / 0.4981 GB
Notification: Performance of pre-optimization done (n=132): time 3.496e-06/0.5432, allocations: 0 / 0.6627 GB, free: 7.117 MB / 0.4981 GB
Notification: Performance of matching and sorting (n=174): time 0.03929/0.5825, allocations: 12.82 MB / 0.6752 GB, free: 10.25 MB / 0.5137 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001222/0.5827, allocations: 230.9 kB / 0.6754 GB, free: 9.98 MB / 0.5137 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001324/0.584, allocations: 0.9569 MB / 0.6763 GB, free: 9.012 MB / 0.5137 GB
Notification: Performance of collectPreVariables (initialization): time 0.000291/0.5843, allocations: 49.7 kB / 0.6764 GB, free: 8.957 MB / 0.5137 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0007583/0.5851, allocations: 1.154 MB / 0.6775 GB, free: 7.785 MB / 0.5137 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0006353/0.5857, allocations: 0.5931 MB / 0.6781 GB, free: 7.184 MB / 0.5137 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0007693/0.5865, allocations: 467.7 kB / 0.6785 GB, free: 6.719 MB / 0.5137 GB
Notification: Performance of setup shared object (initialization): time 0.0001436/0.5867, allocations: 334 kB / 0.6789 GB, free: 6.387 MB / 0.5137 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004612/0.5913, allocations: 1.883 MB / 0.6807 GB, free: 4.492 MB / 0.5137 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.005154/0.5965, allocations: 2.463 MB / 0.6831 GB, free: 1.766 MB / 0.5137 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.009824/0.6063, allocations: 4.378 MB / 0.6874 GB, free: 13.14 MB / 0.5294 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.973e-05/0.6064, allocations: 7.938 kB / 0.6874 GB, free: 13.13 MB / 0.5294 GB
Notification: Performance of matching and sorting (n=282) (initialization): time 0.0141/0.6205, allocations: 5.419 MB / 0.6927 GB, free: 7.695 MB / 0.5294 GB
Notification: Performance of prepare postOptimizeDAE: time 4.162e-05/0.6205, allocations: 16 kB / 0.6927 GB, free: 7.68 MB / 0.5294 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.601e-05/0.6206, allocations: 16 kB / 0.6927 GB, free: 7.664 MB / 0.5294 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.003579/0.6242, allocations: 1.243 MB / 0.6939 GB, free: 6.414 MB / 0.5294 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003458/0.6277, allocations: 0.7292 MB / 0.6946 GB, free: 5.684 MB / 0.5294 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01651/0.6442, allocations: 11.51 MB / 0.7059 GB, free: 9.891 MB / 0.545 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003367/0.6476, allocations: 459.1 kB / 0.7063 GB, free: 9.441 MB / 0.545 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004598/0.6481, allocations: 108 kB / 0.7064 GB, free: 9.336 MB / 0.545 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006799/0.6549, allocations: 2.947 MB / 0.7093 GB, free: 6.379 MB / 0.545 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005434/0.6604, allocations: 2.456 MB / 0.7117 GB, free: 3.664 MB / 0.545 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.01011/0.6705, allocations: 4.347 MB / 0.7159 GB, free: 15.06 MB / 0.5606 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.368e-05/0.6706, allocations: 4 kB / 0.7159 GB, free: 15.06 MB / 0.5606 GB
Notification: Performance of matching and sorting (n=282) (initialization_lambda0): time 0.01372/0.6843, allocations: 5.365 MB / 0.7212 GB, free: 9.676 MB / 0.5606 GB
Notification: Performance of prepare postOptimizeDAE: time 3.093e-05/0.6844, allocations: 12 kB / 0.7212 GB, free: 9.664 MB / 0.5606 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.345e-05/0.6844, allocations: 20 kB / 0.7212 GB, free: 9.645 MB / 0.5606 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.002877/0.6873, allocations: 1.153 MB / 0.7223 GB, free: 8.484 MB / 0.5606 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003335/0.6907, allocations: 0.7292 MB / 0.7231 GB, free: 7.754 MB / 0.5606 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01551/0.7062, allocations: 11.3 MB / 0.7341 GB, free: 12.16 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003316/0.7096, allocations: 451.1 kB / 0.7345 GB, free: 11.71 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004625/0.7101, allocations: 108 kB / 0.7346 GB, free: 11.61 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 81
 * 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 (212):
 * Single equations (assignments): 210
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 2 systems
   {(7,29,63.3%), (6,30,83.3%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 0.0008929/0.711, allocations: 315.6 kB / 0.7349 GB, free: 11.29 MB / 0.5762 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006229/0.7116, allocations: 118.6 kB / 0.735 GB, free: 11.18 MB / 0.5762 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01308/0.7247, allocations: 4.965 MB / 0.7399 GB, free: 6.168 MB / 0.5762 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.57e-05/0.7248, allocations: 23.98 kB / 0.7399 GB, free: 6.145 MB / 0.5762 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 3.131e-05/0.7248, allocations: 12 kB / 0.7399 GB, free: 6.133 MB / 0.5762 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.77e-05/0.7249, allocations: 7.969 kB / 0.7399 GB, free: 6.125 MB / 0.5762 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.3145/1.039, allocations: 8.96 MB / 0.7487 GB, free: 153.5 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.095e-05/1.039, allocations: 7.875 kB / 0.7487 GB, free: 153.5 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002759/1.042, allocations: 0.5305 MB / 0.7492 GB, free: 153.5 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.002931/1.045, allocations: 0.9729 MB / 0.7502 GB, free: 153.5 MB / 0.5762 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002956/1.045, allocations: 58.5 kB / 0.7502 GB, free: 153.5 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01439/1.06, allocations: 10.9 MB / 0.7609 GB, free: 148 MB / 0.5762 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.168e-06/1.06, allocations: 12.19 kB / 0.7609 GB, free: 148 MB / 0.5762 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01098/1.071, allocations: 4.764 MB / 0.7655 GB, free: 146.2 MB / 0.5762 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.001045/1.072, allocations: 0.4901 MB / 0.766 GB, free: 145.9 MB / 0.5762 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002953/1.072, allocations: 39.28 kB / 0.766 GB, free: 145.9 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002524/1.075, allocations: 401 kB / 0.7664 GB, free: 145.9 MB / 0.5762 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004583/1.075, allocations: 151.9 kB / 0.7666 GB, free: 145.9 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000151/1.075, allocations: 67.64 kB / 0.7666 GB, free: 145.9 MB / 0.5762 GB
Notification: Performance of sorting global known variables: time 0.0009261/1.076, allocations: 0.6936 MB / 0.7673 GB, free: 145.6 MB / 0.5762 GB
Notification: Performance of sort global known variables: time 2.21e-07/1.076, allocations: 1.562 kB / 0.7673 GB, free: 145.6 MB / 0.5762 GB
Notification: Performance of remove unused functions: time 0.004194/1.081, allocations: 1.188 MB / 0.7685 GB, free: 145.5 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 32
 * 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 (103):
 * Single equations (assignments): 101
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 2 systems
   {(4,32,100.0%), (6,30,83.3%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.0003501/1.081, allocations: 152.4 kB / 0.7686 GB, free: 145.3 MB / 0.5762 GB
Notification: Performance of simCode: created initialization part: time 0.01965/1.101, allocations: 8.659 MB / 0.7771 GB, free: 142.6 MB / 0.5762 GB
Notification: Performance of simCode: created event and clocks part: time 1.52e-05/1.101, allocations: 0 / 0.7771 GB, free: 142.6 MB / 0.5762 GB
Notification: Performance of simCode: created simulation system equations: time 0.005742/1.106, allocations: 2.618 MB / 0.7796 GB, free: 141.3 MB / 0.5762 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001626/1.108, allocations: 195.5 kB / 0.7798 GB, free: 141.2 MB / 0.5762 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01838/1.126, allocations: 7.857 MB / 0.7875 GB, free: 134.6 MB / 0.5762 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001886/1.128, allocations: 2.383 MB / 0.7898 GB, free: 132.2 MB / 0.5762 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008556/1.129, allocations: 163.3 kB / 0.79 GB, free: 132 MB / 0.5762 GB
Notification: Performance of SimCode: time 9.21e-07/1.129, allocations: 0 / 0.79 GB, free: 132 MB / 0.5762 GB
Notification: Performance of Templates: time 0.05844/1.188, allocations: 65.8 MB / 0.8542 GB, free: 66.23 MB / 0.5762 GB
make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.makefile
(rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.sim & ./IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepUpYD.pipe 2>&1)