Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.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: "" <> buildModelFMU(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Conversion_Examples_TransformerStepDownYD",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Conversion_Examples_TransformerStepDownYD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001058/0.001058, allocations: 99.05 kB / 16.02 MB, free: 80 kB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001272/0.001272, allocations: 182 kB / 16.92 MB, free: 6.781 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.263/1.263, allocations: 223.3 MB / 241 MB, free: 5.344 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6368/0.6368, allocations: 115.5 MB / 407.6 MB, free: 2.719 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.00031/0.00031, allocations: 8 kB / 496 MB, free: 6.242 MB / 350.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1309/0.1312, allocations: 77.53 MB / 0.5601 GB, free: 8.926 MB / 430.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD): time 0.01657/0.1478, allocations: 15.69 MB / 0.5754 GB, free: 9.18 MB / 446.1 MB
Notification: Performance of NFInst.instExpressions: time 0.008584/0.1564, allocations: 5.85 MB / 0.5811 GB, free: 3.309 MB / 446.1 MB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001007/0.1575, allocations: 31.94 kB / 0.5811 GB, free: 3.277 MB / 446.1 MB
Notification: Performance of NFTyping.typeComponents: time 0.0009162/0.1584, allocations: 297.8 kB / 0.5814 GB, free: 2.984 MB / 446.1 MB
Notification: Performance of NFTyping.typeBindings: time 0.002421/0.1608, allocations: 0.9732 MB / 0.5824 GB, free: 2.008 MB / 446.1 MB
Notification: Performance of NFTyping.typeClassSections: time 0.002032/0.1629, allocations: 0.7598 MB / 0.5831 GB, free: 1.25 MB / 446.1 MB
Notification: Performance of NFFlatten.flatten: time 0.2627/0.4256, allocations: 6.278 MB / 0.5892 GB, free: 14.78 MB / 446.1 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.01345/0.4391, allocations: 6.701 MB / 0.5958 GB, free: 13.75 MB / 446.1 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.003028/0.4421, allocations: 1.259 MB / 0.597 GB, free: 13.65 MB / 446.1 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.004646/0.4468, allocations: 1.891 MB / 0.5988 GB, free: 13.45 MB / 446.1 MB
Notification: Performance of NFPackage.collectConstants: time 0.00154/0.4484, allocations: 185.9 kB / 0.599 GB, free: 13.45 MB / 446.1 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.004089/0.4525, allocations: 1.049 MB / 0.6 GB, free: 13.44 MB / 446.1 MB
Notification: Performance of NFScalarize.scalarize: time 0.00306/0.4555, allocations: 1.406 MB / 0.6014 GB, free: 13.35 MB / 446.1 MB
Notification: Performance of NFVerifyModel.verify: time 0.002133/0.4577, allocations: 1.366 MB / 0.6028 GB, free: 12.94 MB / 446.1 MB
Notification: Performance of NFConvertDAE.convert: time 0.006451/0.4641, allocations: 6.023 MB / 0.6086 GB, free: 10.58 MB / 446.1 MB
Notification: Performance of FrontEnd - DAE generated: time 6.483e-06/0.4642, allocations: 0 / 0.6086 GB, free: 10.58 MB / 446.1 MB
Notification: Performance of FrontEnd: time 2.715e-06/0.4642, allocations: 0 / 0.6086 GB, free: 10.58 MB / 446.1 MB
Notification: Performance of Transformations before backend: time 0.0001391/0.4643, allocations: 5.375 kB / 0.6086 GB, free: 10.57 MB / 446.1 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 0.005669/0.47, allocations: 2.378 MB / 0.611 GB, free: 8.992 MB / 446.1 MB
Notification: Performance of prepare preOptimizeDAE: time 4.741e-05/0.4701, allocations: 10.06 kB / 0.611 GB, free: 8.992 MB / 446.1 MB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000679/0.4708, allocations: 439.5 kB / 0.6114 GB, free: 8.688 MB / 446.1 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01061/0.4814, allocations: 2.02 MB / 0.6134 GB, free: 7.738 MB / 446.1 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.002708/0.4841, allocations: 1.583 MB / 0.6149 GB, free: 6.781 MB / 446.1 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001244/0.4842, allocations: 215.6 kB / 0.6151 GB, free: 6.688 MB / 446.1 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004925/0.4847, allocations: 277.8 kB / 0.6154 GB, free: 6.602 MB / 446.1 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01018/0.4949, allocations: 5.693 MB / 0.6209 GB, free: 3.344 MB / 446.1 MB
Notification: Performance of preOpt findStateOrder (simulation): time 5.47e-05/0.495, allocations: 3.188 kB / 0.6209 GB, free: 3.344 MB / 446.1 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003405/0.4953, allocations: 123.3 kB / 0.6211 GB, free: 3.254 MB / 446.1 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002623/0.4956, allocations: 201.4 kB / 0.6213 GB, free: 3.199 MB / 446.1 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01161/0.5072, allocations: 5.833 MB / 0.627 GB, free: 14.02 MB / 462.1 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02647/0.5337, allocations: 22.63 MB / 0.649 GB, free: 5.57 MB / 478.1 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.005787/0.5396, allocations: 3.021 MB / 0.652 GB, free: 2.383 MB / 478.1 MB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004755/0.5443, allocations: 1.922 MB / 0.6539 GB, free: 456 kB / 478.1 MB
Notification: Performance of preOpt evalFunc (simulation): time 0.0001961/0.5446, allocations: 118.8 kB / 0.654 GB, free: 328 kB / 478.1 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.686e-05/0.5446, allocations: 63.44 kB / 0.654 GB, free: 256 kB / 478.1 MB
Notification: Performance of pre-optimization done (n=132): time 3.357e-06/0.5446, allocations: 0 / 0.654 GB, free: 256 kB / 478.1 MB
Notification: Performance of matching and sorting (n=174): time 0.04003/0.5847, allocations: 12.97 MB / 0.6667 GB, free: 3.254 MB / 494.1 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001242/0.5848, allocations: 230.9 kB / 0.6669 GB, free: 2.98 MB / 494.1 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001399/0.5862, allocations: 0.9491 MB / 0.6679 GB, free: 2.023 MB / 494.1 MB
Notification: Performance of collectPreVariables (initialization): time 0.0001873/0.5864, allocations: 57.7 kB / 0.6679 GB, free: 1.961 MB / 494.1 MB
Notification: Performance of collectInitialEqns (initialization): time 0.0007068/0.5872, allocations: 1.154 MB / 0.669 GB, free: 0.7969 MB / 494.1 MB
Notification: Performance of collectInitialBindings (initialization): time 0.000598/0.5878, allocations: 0.5904 MB / 0.6696 GB, free: 216 kB / 494.1 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003236/0.5881, allocations: 182.1 kB / 0.6698 GB, free: 28 kB / 494.1 MB
Notification: Performance of setup shared object (initialization): time 0.0001382/0.5883, allocations: 333.9 kB / 0.6701 GB, free: 15.7 MB / 0.4981 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.00469/0.593, allocations: 1.874 MB / 0.6719 GB, free: 13.82 MB / 0.4981 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.004978/0.5979, allocations: 2.468 MB / 0.6744 GB, free: 11.09 MB / 0.4981 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.009579/0.6075, allocations: 4.377 MB / 0.6786 GB, free: 6.465 MB / 0.4981 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.802e-05/0.6076, allocations: 4 kB / 0.6786 GB, free: 6.461 MB / 0.4981 GB
Notification: Performance of matching and sorting (n=282) (initialization): time 0.01285/0.6204, allocations: 5.431 MB / 0.6839 GB, free: 1.012 MB / 0.4981 GB
Notification: Performance of prepare postOptimizeDAE: time 0.000467/0.6209, allocations: 0.6189 MB / 0.6845 GB, free: 152 kB / 0.4981 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.325e-05/0.621, allocations: 20 kB / 0.6846 GB, free: 132 kB / 0.4981 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.00334/0.6243, allocations: 1.216 MB / 0.6857 GB, free: 14.91 MB / 0.5137 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003184/0.6275, allocations: 0.7253 MB / 0.6865 GB, free: 14.18 MB / 0.5137 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01413/0.6417, allocations: 10.51 MB / 0.6967 GB, free: 3.406 MB / 0.5137 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003445/0.6452, allocations: 467.1 kB / 0.6972 GB, free: 2.949 MB / 0.5137 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004512/0.6456, allocations: 111.9 kB / 0.6973 GB, free: 2.84 MB / 0.5137 GB
Notification: Performance of prepare postOptimizeDAE: time 9.498e-06/0.6457, allocations: 4 kB / 0.6973 GB, free: 2.836 MB / 0.5137 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01291/0.6586, allocations: 5.243 MB / 0.7024 GB, free: 13.58 MB / 0.5294 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.579e-05/0.6587, allocations: 16.28 kB / 0.7024 GB, free: 13.57 MB / 0.5294 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.002516/0.6612, allocations: 0.9658 MB / 0.7034 GB, free: 12.59 MB / 0.5294 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003166/0.6644, allocations: 0.7331 MB / 0.7041 GB, free: 11.86 MB / 0.5294 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01339/0.6778, allocations: 10.41 MB / 0.7142 GB, free: 1.176 MB / 0.5294 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003126/0.6809, allocations: 443.2 kB / 0.7147 GB, free: 0.7422 MB / 0.5294 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004067/0.6813, allocations: 111.9 kB / 0.7148 GB, free: 0.6328 MB / 0.5294 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
   {(5,31,92.0%), (5,31,92.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 0.002528/0.6839, allocations: 1.266 MB / 0.716 GB, free: 15.36 MB / 0.545 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005126/0.6844, allocations: 126.6 kB / 0.7161 GB, free: 15.23 MB / 0.545 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01245/0.6969, allocations: 4.968 MB / 0.721 GB, free: 10.22 MB / 0.545 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.364e-05/0.6969, allocations: 16 kB / 0.721 GB, free: 10.2 MB / 0.545 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.882e-05/0.6969, allocations: 12 kB / 0.721 GB, free: 10.19 MB / 0.545 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.191e-05/0.697, allocations: 11.97 kB / 0.721 GB, free: 10.18 MB / 0.545 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01862/0.7156, allocations: 8.964 MB / 0.7298 GB, free: 1.062 MB / 0.545 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.85e-05/0.7157, allocations: 8.875 kB / 0.7298 GB, free: 1.055 MB / 0.545 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002435/0.7181, allocations: 0.5303 MB / 0.7303 GB, free: 0.5234 MB / 0.545 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.002573/0.7207, allocations: 0.9734 MB / 0.7312 GB, free: 15.54 MB / 0.5606 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001744/0.7209, allocations: 59.95 kB / 0.7313 GB, free: 15.48 MB / 0.5606 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01321/0.7341, allocations: 9.998 MB / 0.7411 GB, free: 5.215 MB / 0.5606 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.177e-06/0.7341, allocations: 8 kB / 0.7411 GB, free: 5.207 MB / 0.5606 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01147/0.7456, allocations: 4.772 MB / 0.7457 GB, free: 324 kB / 0.5606 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.001048/0.7467, allocations: 0.515 MB / 0.7462 GB, free: 15.78 MB / 0.5762 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003748/0.7471, allocations: 35.98 kB / 0.7463 GB, free: 15.75 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00266/0.7497, allocations: 403.4 kB / 0.7467 GB, free: 15.35 MB / 0.5762 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003526/0.7501, allocations: 160.9 kB / 0.7468 GB, free: 15.2 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000156/0.7503, allocations: 63.95 kB / 0.7469 GB, free: 15.13 MB / 0.5762 GB
Notification: Performance of sorting global known variables: time 0.001064/0.7513, allocations: 0.6864 MB / 0.7475 GB, free: 14.45 MB / 0.5762 GB
Notification: Performance of sort global known variables: time 2.91e-07/0.7513, allocations: 0 / 0.7475 GB, free: 14.45 MB / 0.5762 GB
Notification: Performance of remove unused functions: time 0.004477/0.7558, allocations: 1.187 MB / 0.7487 GB, free: 13.26 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%), (8,28,53.1%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.01119/0.767, allocations: 5.374 MB / 0.754 GB, free: 7.766 MB / 0.5762 GB
Notification: Performance of simCode: created initialization part: time 0.01822/0.7853, allocations: 7.999 MB / 0.7618 GB, free: 15.72 MB / 0.5919 GB
Notification: Performance of simCode: created event and clocks part: time 9.858e-06/0.7853, allocations: 0 / 0.7618 GB, free: 15.72 MB / 0.5919 GB
Notification: Performance of simCode: created simulation system equations: time 0.006248/0.7916, allocations: 2.664 MB / 0.7644 GB, free: 13.04 MB / 0.5919 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002372/0.7939, allocations: 201.4 kB / 0.7646 GB, free: 12.84 MB / 0.5919 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.05972/0.8537, allocations: 26.91 MB / 0.7908 GB, free: 0.7656 MB / 0.6075 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003071/0.8568, allocations: 2.306 MB / 0.7931 GB, free: 14.43 MB / 0.6231 GB
Notification: Performance of simCode: alias equations: time 0.00377/0.8606, allocations: 1.229 MB / 0.7943 GB, free: 13.19 MB / 0.6231 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001393/0.862, allocations: 0.8546 MB / 0.7951 GB, free: 12.34 MB / 0.6231 GB
Notification: Performance of SimCode: time 7.71e-07/0.862, allocations: 4 kB / 0.7951 GB, free: 12.33 MB / 0.6231 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.3282/1.19, allocations: 51.03 MB / 0.845 GB, free: 215.7 MB / 0.6387 GB
Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001539/1.19, allocations: 267.5 kB / 0.8452 GB, free: 215.4 MB / 0.6387 GB
Notification: Performance of buildModelFMU: Generate platform static: time 2.583/3.773, allocations: 0 / 0.8452 GB, free: 215.4 MB / 0.6387 GB
(rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator  --tempDir=temp_IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Conversion_Examples_TransformerStepDownYD_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Conversion_Examples_TransformerStepDownYD.fmu > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownYD.pipe 2>&1)