Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter.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.DC.Conversion.Examples.DCDCConverter,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_DC_Conversion_Examples_DCDCConverter",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_DC_Conversion_Examples_DCDCConverter",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 0.001332/0.001332, allocations: 112 kB / 16.4 MB, free: 6.379 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001364/0.001364, allocations: 196 kB / 17.33 MB, free: 5.844 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.426/1.426, allocations: 222.9 MB / 241 MB, free: 15.15 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.8296/0.8296, allocations: 126.7 MB / 417.9 MB, free: 12.28 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001939/0.001939, allocations: 67.11 kB / 0.5735 GB, free: 27 MB / 446.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1516/0.1535, allocations: 78.86 MB / 0.6505 GB, free: 3.637 MB / 494.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter): time 0.005582/0.1592, allocations: 3.356 MB / 0.6538 GB, free: 272 kB / 494.1 MB
Notification: Performance of NFInst.instExpressions: time 0.002923/0.1621, allocations: 1.492 MB / 0.6552 GB, free: 14.77 MB / 0.4981 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0002828/0.1625, allocations: 7.938 kB / 0.6553 GB, free: 14.76 MB / 0.4981 GB
Notification: Performance of NFTyping.typeComponents: time 0.001995/0.1645, allocations: 0.6908 MB / 0.6559 GB, free: 14.07 MB / 0.4981 GB
Notification: Performance of NFTyping.typeBindings: time 0.0006781/0.1652, allocations: 187 kB / 0.6561 GB, free: 13.88 MB / 0.4981 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0008249/0.166, allocations: 253.6 kB / 0.6563 GB, free: 13.64 MB / 0.4981 GB
Notification: Performance of NFFlatten.flatten: time 0.0007282/0.1668, allocations: 407.2 kB / 0.6567 GB, free: 13.24 MB / 0.4981 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0006417/0.1674, allocations: 311.9 kB / 0.657 GB, free: 12.94 MB / 0.4981 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0003152/0.1677, allocations: 159.5 kB / 0.6572 GB, free: 12.78 MB / 0.4981 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0003946/0.1682, allocations: 183.3 kB / 0.6574 GB, free: 12.6 MB / 0.4981 GB
Notification: Performance of NFPackage.collectConstants: time 5.359e-05/0.1682, allocations: 24 kB / 0.6574 GB, free: 12.58 MB / 0.4981 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0004878/0.1687, allocations: 243.4 kB / 0.6576 GB, free: 12.34 MB / 0.4981 GB
Notification: Performance of NFScalarize.scalarize: time 0.000144/0.1689, allocations: 111.7 kB / 0.6577 GB, free: 12.23 MB / 0.4981 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002231/0.1691, allocations: 151.2 kB / 0.6579 GB, free: 12.08 MB / 0.4981 GB
Notification: Performance of NFConvertDAE.convert: time 0.0008016/0.1699, allocations: 454.3 kB / 0.6583 GB, free: 11.64 MB / 0.4981 GB
Notification: Performance of FrontEnd - DAE generated: time 6.052e-06/0.1699, allocations: 0 / 0.6583 GB, free: 11.64 MB / 0.4981 GB
Notification: Performance of FrontEnd: time 2.063e-06/0.17, allocations: 4 kB / 0.6583 GB, free: 11.63 MB / 0.4981 GB
Notification: Performance of Transformations before backend: time 1.009e-05/0.17, allocations: 0 / 0.6583 GB, free: 11.63 MB / 0.4981 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 71
 * Number of variables: 71
Notification: Performance of Generate backend data structure: time 0.001276/0.1712, allocations: 0.6077 MB / 0.6589 GB, free: 10.97 MB / 0.4981 GB
Notification: Performance of prepare preOptimizeDAE: time 5.043e-05/0.1713, allocations: 8.031 kB / 0.6589 GB, free: 10.96 MB / 0.4981 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.693e-05/0.1714, allocations: 70.7 kB / 0.659 GB, free: 10.89 MB / 0.4981 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000774/0.1722, allocations: 108.7 kB / 0.6591 GB, free: 10.78 MB / 0.4981 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004691/0.1727, allocations: 280.5 kB / 0.6593 GB, free: 10.46 MB / 0.4981 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.354e-05/0.1728, allocations: 46.81 kB / 0.6594 GB, free: 10.41 MB / 0.4981 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 4.359e-05/0.1728, allocations: 28.31 kB / 0.6594 GB, free: 10.39 MB / 0.4981 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008152/0.1736, allocations: 428.4 kB / 0.6598 GB, free: 9.941 MB / 0.4981 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.521e-05/0.1737, allocations: 4 kB / 0.6598 GB, free: 9.938 MB / 0.4981 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.877e-05/0.1737, allocations: 15.98 kB / 0.6598 GB, free: 9.922 MB / 0.4981 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.964e-05/0.1738, allocations: 24.55 kB / 0.6599 GB, free: 9.898 MB / 0.4981 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006642/0.1744, allocations: 329.9 kB / 0.6602 GB, free: 9.578 MB / 0.4981 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002707/0.1772, allocations: 2.088 MB / 0.6622 GB, free: 7.266 MB / 0.4981 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0006187/0.1778, allocations: 204.7 kB / 0.6624 GB, free: 7.059 MB / 0.4981 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0003419/0.1782, allocations: 128.8 kB / 0.6625 GB, free: 6.93 MB / 0.4981 GB
Notification: Performance of preOpt evalFunc (simulation): time 2.7e-05/0.1782, allocations: 0 / 0.6625 GB, free: 6.93 MB / 0.4981 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.145e-05/0.1783, allocations: 38.56 kB / 0.6626 GB, free: 6.883 MB / 0.4981 GB
Notification: Performance of pre-optimization done (n=17): time 1.433e-06/0.1783, allocations: 0 / 0.6626 GB, free: 6.883 MB / 0.4981 GB
Notification: Performance of matching and sorting (n=17): time 0.0007127/0.179, allocations: 261.2 kB / 0.6628 GB, free: 6.621 MB / 0.4981 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 6.022e-05/0.1791, allocations: 55.41 kB / 0.6629 GB, free: 6.555 MB / 0.4981 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002672/0.1793, allocations: 229 kB / 0.6631 GB, free: 6.32 MB / 0.4981 GB
Notification: Performance of collectPreVariables (initialization): time 2.513e-05/0.1794, allocations: 25.7 kB / 0.6631 GB, free: 6.289 MB / 0.4981 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0001561/0.1795, allocations: 200.3 kB / 0.6633 GB, free: 6.09 MB / 0.4981 GB
Notification: Performance of collectInitialBindings (initialization): time 6.211e-05/0.1796, allocations: 63.47 kB / 0.6634 GB, free: 6.027 MB / 0.4981 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001228/0.1797, allocations: 53.66 kB / 0.6634 GB, free: 5.969 MB / 0.4981 GB
Notification: Performance of setup shared object (initialization): time 0.0001751/0.1799, allocations: 330.8 kB / 0.6637 GB, free: 5.637 MB / 0.4981 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002196/0.1801, allocations: 80.81 kB / 0.6638 GB, free: 5.555 MB / 0.4981 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002882/0.1804, allocations: 193.6 kB / 0.664 GB, free: 5.316 MB / 0.4981 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0004864/0.1809, allocations: 266.4 kB / 0.6643 GB, free: 5.012 MB / 0.4981 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.138e-06/0.181, allocations: 0 / 0.6643 GB, free: 5.012 MB / 0.4981 GB
Notification: Performance of matching and sorting (n=31) (initialization): time 0.0006244/0.1816, allocations: 295.1 kB / 0.6645 GB, free: 4.719 MB / 0.4981 GB
Notification: Performance of prepare postOptimizeDAE: time 2.285e-05/0.1816, allocations: 8 kB / 0.6645 GB, free: 4.711 MB / 0.4981 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.058e-05/0.1816, allocations: 11.88 kB / 0.6646 GB, free: 4.699 MB / 0.4981 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.817e-05/0.1817, allocations: 4 kB / 0.6646 GB, free: 4.695 MB / 0.4981 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004377/0.1821, allocations: 67.89 kB / 0.6646 GB, free: 4.629 MB / 0.4981 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001329/0.1834, allocations: 1.409 MB / 0.666 GB, free: 3.086 MB / 0.4981 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002811/0.1837, allocations: 35.72 kB / 0.666 GB, free: 3.051 MB / 0.4981 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.19e-05/0.1838, allocations: 8 kB / 0.666 GB, free: 3.043 MB / 0.4981 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0003294/0.1841, allocations: 196.1 kB / 0.6662 GB, free: 2.848 MB / 0.4981 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002926/0.1844, allocations: 186.5 kB / 0.6664 GB, free: 2.613 MB / 0.4981 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0004911/0.1849, allocations: 273.5 kB / 0.6667 GB, free: 2.297 MB / 0.4981 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.495e-06/0.1849, allocations: 0 / 0.6667 GB, free: 2.297 MB / 0.4981 GB
Notification: Performance of matching and sorting (n=31) (initialization_lambda0): time 0.0006129/0.1856, allocations: 300.4 kB / 0.667 GB, free: 2 MB / 0.4981 GB
Notification: Performance of prepare postOptimizeDAE: time 1.206e-05/0.1856, allocations: 4 kB / 0.667 GB, free: 1.996 MB / 0.4981 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.68e-06/0.1856, allocations: 4 kB / 0.667 GB, free: 1.992 MB / 0.4981 GB
Notification: Performance of postOpt tearingSystem (initialization): time 6.863e-06/0.1856, allocations: 4 kB / 0.667 GB, free: 1.988 MB / 0.4981 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004249/0.186, allocations: 63.91 kB / 0.667 GB, free: 1.926 MB / 0.4981 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001298/0.1873, allocations: 1.412 MB / 0.6684 GB, free: 384 kB / 0.4981 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002556/0.1876, allocations: 27.88 kB / 0.6684 GB, free: 356 kB / 0.4981 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.482e-05/0.1877, allocations: 16 kB / 0.6684 GB, free: 340 kB / 0.4981 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 15
 * 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 (31):
 * Single equations (assignments): 30
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 1
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details (not torn):
 * Constant Jacobian (size): 0 systems
 * Linear Jacobian (size,density): 0 systems
 * Non-linear Jacobian (size): 1 system
   {1}
 * Without analytic Jacobian (size): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 0.0001931/0.1879, allocations: 196.2 kB / 0.6686 GB, free: 136 kB / 0.4981 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 5.752e-05/0.1879, allocations: 27.8 kB / 0.6687 GB, free: 108 kB / 0.4981 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 7.218e-05/0.188, allocations: 30.17 kB / 0.6687 GB, free: 76 kB / 0.4981 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.335e-06/0.188, allocations: 0 / 0.6687 GB, free: 76 kB / 0.4981 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.264e-06/0.188, allocations: 0 / 0.6687 GB, free: 76 kB / 0.4981 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.857e-06/0.188, allocations: 4 kB / 0.6687 GB, free: 72 kB / 0.4981 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001217/0.1892, allocations: 0.731 MB / 0.6694 GB, free: 15.25 MB / 0.5137 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.189e-06/0.1893, allocations: 4 kB / 0.6694 GB, free: 15.25 MB / 0.5137 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003616/0.1896, allocations: 47.97 kB / 0.6695 GB, free: 15.2 MB / 0.5137 GB
Notification: Performance of postOpt tearingSystem (simulation): time 7.234e-06/0.1896, allocations: 4 kB / 0.6695 GB, free: 15.2 MB / 0.5137 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.316e-05/0.1897, allocations: 0 / 0.6695 GB, free: 15.2 MB / 0.5137 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 9.938e-06/0.1897, allocations: 11.92 kB / 0.6695 GB, free: 15.18 MB / 0.5137 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.483e-06/0.1897, allocations: 4.156 kB / 0.6695 GB, free: 15.18 MB / 0.5137 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005061/0.1902, allocations: 325.3 kB / 0.6698 GB, free: 14.83 MB / 0.5137 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001035/0.1903, allocations: 109 kB / 0.6699 GB, free: 14.71 MB / 0.5137 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.682e-05/0.1903, allocations: 7.938 kB / 0.6699 GB, free: 14.7 MB / 0.5137 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001442/0.1905, allocations: 11.98 kB / 0.6699 GB, free: 14.69 MB / 0.5137 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 6.215e-05/0.1906, allocations: 15.92 kB / 0.6699 GB, free: 14.67 MB / 0.5137 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.145e-05/0.1906, allocations: 4 kB / 0.6699 GB, free: 14.67 MB / 0.5137 GB
Notification: Performance of sorting global known variables: time 0.0001696/0.1908, allocations: 164.5 kB / 0.6701 GB, free: 14.5 MB / 0.5137 GB
Notification: Performance of sort global known variables: time 1.5e-07/0.1908, allocations: 0 / 0.6701 GB, free: 14.5 MB / 0.5137 GB
Notification: Performance of remove unused functions: time 0.0005857/0.1914, allocations: 123.7 kB / 0.6702 GB, free: 14.38 MB / 0.5137 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 6
 * 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 (17):
 * Single equations (assignments): 17
 * Array equations: 0
 * Algorithm blocks: 0
 * 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 Backend phase and start with SimCode phase: time 0.0008839/0.1922, allocations: 0.8531 MB / 0.671 GB, free: 13.49 MB / 0.5137 GB
Notification: Performance of simCode: created initialization part: time 0.001119/0.1934, allocations: 330.4 kB / 0.6714 GB, free: 13.17 MB / 0.5137 GB
Notification: Performance of simCode: created event and clocks part: time 3.256e-06/0.1934, allocations: 0 / 0.6714 GB, free: 13.17 MB / 0.5137 GB
Notification: Performance of simCode: created simulation system equations: time 0.0003727/0.1938, allocations: 95.81 kB / 0.6714 GB, free: 13.07 MB / 0.5137 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004594/0.1942, allocations: 57.42 kB / 0.6715 GB, free: 13.02 MB / 0.5137 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003582/0.1978, allocations: 2.578 MB / 0.674 GB, free: 10.24 MB / 0.5137 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004912/0.1984, allocations: 0.7753 MB / 0.6748 GB, free: 9.438 MB / 0.5137 GB
Notification: Performance of simCode: alias equations: time 0.0002022/0.1986, allocations: 57.89 kB / 0.6748 GB, free: 9.383 MB / 0.5137 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001294/0.1987, allocations: 71.41 kB / 0.6749 GB, free: 9.312 MB / 0.5137 GB
Notification: Performance of SimCode: time 1.022e-06/0.1987, allocations: 0 / 0.6749 GB, free: 9.312 MB / 0.5137 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03071/0.2294, allocations: 4.874 MB / 0.6797 GB, free: 4.582 MB / 0.5137 GB
Notification: Performance of buildModelFMU: Generate platform static: time 11.88/12.11, allocations: 14.59 kB / 0.6797 GB, free: 4.57 MB / 0.5137 GB
(rm -f IBPSA_latest_IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter.sim & python3 -m fmpy simulate  --output-file IBPSA_latest_IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 IBPSA_latest_IBPSA_Electrical_DC_Conversion_Examples_DCDCConverter.fmu > IBPSA_latest_IBPSA.Electrical.DC.Conversion.Examples.DCDCConverter.pipe 2>&1)