Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T.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: "" <> buildModelFMU(IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T,fileNamePrefix="IDEAS_IDEAS_Fluid_HeatExchangers_Examples_AirHeater_T",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T,fileNamePrefix="IDEAS_IDEAS_Fluid_HeatExchangers_Examples_AirHeater_T",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 0.001366/0.001365, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001435/0.001435, allocations: 192.9 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.297/1.297, allocations: 222.9 MB / 240.2 MB, free: 4.375 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7519/0.7519, allocations: 132.2 MB / 422.6 MB, free: 1.789 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001255/0.001255, allocations: 64.27 kB / 0.5019 GB, free: 8.641 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1578/0.1591, allocations: 80.2 MB / 0.5802 GB, free: 8.668 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T): time 0.5078/0.6669, allocations: 235.9 MB / 0.8106 GB, free: 6.633 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.02289/0.6899, allocations: 15.72 MB / 0.8259 GB, free: 6.867 MB / 0.6387 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002771/0.6927, allocations: 91.5 kB / 0.826 GB, free: 6.777 MB / 0.6387 GB Notification: Performance of NFTyping.typeComponents: time 0.003581/0.6963, allocations: 1.314 MB / 0.8273 GB, free: 5.465 MB / 0.6387 GB Notification: Performance of NFTyping.typeBindings: time 0.00819/0.7045, allocations: 3.418 MB / 0.8306 GB, free: 2.035 MB / 0.6387 GB Notification: Performance of NFTyping.typeClassSections: time 0.005832/0.7103, allocations: 2.478 MB / 0.8331 GB, free: 15.57 MB / 0.6544 GB Notification: Performance of NFFlatten.flatten: time 0.006718/0.7171, allocations: 4.953 MB / 0.8379 GB, free: 10.61 MB / 0.6544 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003457/0.7206, allocations: 1.913 MB / 0.8398 GB, free: 8.652 MB / 0.6544 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00564/0.7262, allocations: 2.678 MB / 0.8424 GB, free: 5.965 MB / 0.6544 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003076/0.7293, allocations: 1.552 MB / 0.8439 GB, free: 4.414 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 0.0006374/0.73, allocations: 200 kB / 0.8441 GB, free: 4.219 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006197/0.7362, allocations: 3.418 MB / 0.8474 GB, free: 0.793 MB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.001032/0.7372, allocations: 0.7516 MB / 0.8482 GB, free: 40 kB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.002091/0.7393, allocations: 1.197 MB / 0.8493 GB, free: 14.83 MB / 0.67 GB Notification: Performance of NFConvertDAE.convert: time 0.006982/0.7463, allocations: 4.265 MB / 0.8535 GB, free: 10.56 MB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 5.019e-06/0.7464, allocations: 0 / 0.8535 GB, free: 10.56 MB / 0.67 GB Notification: Performance of FrontEnd: time 1.493e-06/0.7464, allocations: 4 kB / 0.8535 GB, free: 10.55 MB / 0.67 GB Notification: Performance of Transformations before backend: time 0.0001041/0.7465, allocations: 0 / 0.8535 GB, free: 10.55 MB / 0.67 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 333 * Number of variables: 333 Notification: Performance of Generate backend data structure: time 0.005488/0.752, allocations: 2.824 MB / 0.8563 GB, free: 7.668 MB / 0.67 GB Notification: Performance of prepare preOptimizeDAE: time 4.305e-05/0.752, allocations: 8.031 kB / 0.8563 GB, free: 7.66 MB / 0.67 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000223/0.7523, allocations: 202.3 kB / 0.8565 GB, free: 7.453 MB / 0.67 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.004771/0.757, allocations: 0.7659 MB / 0.8572 GB, free: 6.684 MB / 0.67 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003142/0.7602, allocations: 1.664 MB / 0.8588 GB, free: 4.969 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003721/0.7606, allocations: 158.5 kB / 0.859 GB, free: 4.812 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002062/0.7608, allocations: 151.5 kB / 0.8591 GB, free: 4.668 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002963/0.7638, allocations: 1.655 MB / 0.8607 GB, free: 2.938 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.87e-05/0.7638, allocations: 4 kB / 0.8607 GB, free: 2.934 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001259/0.764, allocations: 52 kB / 0.8608 GB, free: 2.883 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.358e-05/0.764, allocations: 54.48 kB / 0.8608 GB, free: 2.828 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00311/0.7671, allocations: 1.427 MB / 0.8622 GB, free: 1.395 MB / 0.67 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 0.2479/1.015, allocations: 7.782 MB / 0.8698 GB, free: 221.1 MB / 0.67 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002283/1.017, allocations: 1.567 MB / 0.8714 GB, free: 220.1 MB / 0.67 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009526/1.018, allocations: 0.5163 MB / 0.8719 GB, free: 219.9 MB / 0.67 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00115/1.019, allocations: 0.7782 MB / 0.8726 GB, free: 219.2 MB / 0.67 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001068/1.021, allocations: 0.5482 MB / 0.8732 GB, free: 219 MB / 0.67 GB Notification: Performance of pre-optimization done (n=83): time 4.489e-06/1.021, allocations: 0 / 0.8732 GB, free: 219 MB / 0.67 GB Notification: Performance of matching and sorting (n=83): time 0.003712/1.024, allocations: 1.592 MB / 0.8747 GB, free: 218.4 MB / 0.67 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.12e-05/1.024, allocations: 65.75 kB / 0.8748 GB, free: 218.4 MB / 0.67 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001711/1.026, allocations: 1.564 MB / 0.8763 GB, free: 217.8 MB / 0.67 GB Notification: Performance of collectPreVariables (initialization): time 0.0001021/1.026, allocations: 48.39 kB / 0.8764 GB, free: 217.8 MB / 0.67 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005518/1.027, allocations: 0.9273 MB / 0.8773 GB, free: 217.1 MB / 0.67 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001939/1.027, allocations: 288.8 kB / 0.8775 GB, free: 216.9 MB / 0.67 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002732/1.027, allocations: 219.1 kB / 0.8778 GB, free: 216.8 MB / 0.67 GB Notification: Performance of setup shared object (initialization): time 7.012e-05/1.027, allocations: 350.7 kB / 0.8781 GB, free: 216.5 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009231/1.028, allocations: 462.3 kB / 0.8785 GB, free: 216.3 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001092/1.029, allocations: 0.7799 MB / 0.8793 GB, free: 215.8 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001977/1.031, allocations: 1.227 MB / 0.8805 GB, free: 215.1 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.292e-06/1.031, allocations: 2.781 kB / 0.8805 GB, free: 215.1 MB / 0.67 GB Notification: Performance of matching and sorting (n=133) (initialization): time 0.002677/1.034, allocations: 1.426 MB / 0.8819 GB, free: 214.6 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 3.538e-05/1.034, allocations: 42.16 kB / 0.8819 GB, free: 214.5 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.367e-05/1.034, allocations: 9.812 kB / 0.8819 GB, free: 214.5 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.618e-05/1.034, allocations: 12.75 kB / 0.8819 GB, free: 214.5 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001026/1.035, allocations: 272.1 kB / 0.8822 GB, free: 214.5 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.854e-05/1.035, allocations: 15.84 kB / 0.8822 GB, free: 214.5 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001268/1.036, allocations: 137 kB / 0.8824 GB, free: 214.5 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.194e-05/1.037, allocations: 54.95 kB / 0.8824 GB, free: 214.4 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001445/1.038, allocations: 0.815 MB / 0.8832 GB, free: 214.1 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001012/1.039, allocations: 0.7719 MB / 0.884 GB, free: 213.5 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001872/1.041, allocations: 1.191 MB / 0.8851 GB, free: 212.8 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.18e-06/1.041, allocations: 5.562 kB / 0.8851 GB, free: 212.8 MB / 0.67 GB Notification: Performance of matching and sorting (n=133) (initialization_lambda0): time 0.00262/1.044, allocations: 1.399 MB / 0.8865 GB, free: 212.2 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 2.657e-05/1.044, allocations: 38.64 kB / 0.8865 GB, free: 212.2 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.074e-05/1.044, allocations: 9 kB / 0.8865 GB, free: 212.2 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.161e-05/1.044, allocations: 16.88 kB / 0.8865 GB, free: 212.2 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001022/1.045, allocations: 268.8 kB / 0.8868 GB, free: 212.2 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.517e-05/1.045, allocations: 17.48 kB / 0.8868 GB, free: 212.2 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001254/1.046, allocations: 128.7 kB / 0.8869 GB, free: 212.1 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.531e-05/1.046, allocations: 50.27 kB / 0.887 GB, free: 212.1 MB / 0.67 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 38 * Number of states: 0 () * Number of discrete variables: 6 (TSet.count,$PRE.TSet.count,TSet.T_start,$PRE.TSet.T_start,$whenCondition1,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (131): * Single equations (assignments): 129 * Array equations: 1 * Algorithm blocks: 1 * 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 prepare postOptimizeDAE: time 0.0002835/1.046, allocations: 257.8 kB / 0.8872 GB, free: 211.9 MB / 0.67 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002327/1.047, allocations: 176.5 kB / 0.8874 GB, free: 211.8 MB / 0.67 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002547/1.049, allocations: 1.163 MB / 0.8885 GB, free: 211.3 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.277e-05/1.049, allocations: 10.09 kB / 0.8886 GB, free: 211.3 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.027e-05/1.049, allocations: 3.375 kB / 0.8886 GB, free: 211.3 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.00203/1.051, allocations: 1.235 MB / 0.8898 GB, free: 210.6 MB / 0.67 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 postOpt removeSimpleEquations (simulation): time 0.005071/1.056, allocations: 2.912 MB / 0.8926 GB, free: 209.2 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.358e-06/1.056, allocations: 0 / 0.8926 GB, free: 209.2 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008935/1.057, allocations: 191.2 kB / 0.8928 GB, free: 209.2 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001993/1.057, allocations: 43.44 kB / 0.8928 GB, free: 209.2 MB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.914e-05/1.057, allocations: 29.14 kB / 0.8929 GB, free: 209.2 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009505/1.058, allocations: 1.53 MB / 0.8944 GB, free: 207.7 MB / 0.67 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.807e-06/1.058, allocations: 10.56 kB / 0.8944 GB, free: 207.7 MB / 0.67 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003418/1.062, allocations: 1.769 MB / 0.8961 GB, free: 206.9 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006397/1.063, allocations: 354.8 kB / 0.8964 GB, free: 206.6 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001869/1.063, allocations: 21.41 kB / 0.8964 GB, free: 206.6 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009353/1.064, allocations: 61.94 kB / 0.8965 GB, free: 206.6 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001496/1.064, allocations: 61.23 kB / 0.8966 GB, free: 206.6 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.632e-05/1.064, allocations: 32.66 kB / 0.8966 GB, free: 206.6 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.001445/1.065, allocations: 1.051 MB / 0.8976 GB, free: 206.2 MB / 0.67 GB Notification: Performance of sort global known variables: time 2.6e-07/1.065, allocations: 0 / 0.8976 GB, free: 206.2 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.002436/1.068, allocations: 0.9293 MB / 0.8985 GB, free: 206 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 8 (vol.dynBal.U,vol.dynBal.m,vol.dynBal.mXi[1],mov.filter.s[1],mov.filter.s[2],conPI.I.y,THeaOut.T,hea.outCon.T) * Number of discrete variables: 3 ($whenCondition1,TSet.T_start,TSet.count) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (83): * Single equations (assignments): 80 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.005082/1.073, allocations: 2.826 MB / 0.9013 GB, free: 204.6 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.004326/1.077, allocations: 1.911 MB / 0.9032 GB, free: 203.9 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 5.03e-06/1.077, allocations: 1.469 kB / 0.9032 GB, free: 203.9 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.001278/1.079, allocations: 0.6103 MB / 0.9038 GB, free: 203.7 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003406/1.082, allocations: 0.8227 MB / 0.9046 GB, free: 203.4 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02123/1.103, allocations: 13.81 MB / 0.918 GB, free: 195.6 MB / 0.67 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001301/1.105, allocations: 1.486 MB / 0.9195 GB, free: 194.8 MB / 0.67 GB Notification: Performance of simCode: alias equations: time 0.002234/1.107, allocations: 444.5 kB / 0.9199 GB, free: 194.6 MB / 0.67 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008841/1.108, allocations: 0.7731 MB / 0.9207 GB, free: 194 MB / 0.67 GB Notification: Performance of SimCode: time 9.32e-07/1.108, allocations: 3.938 kB / 0.9207 GB, free: 194 MB / 0.67 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07659/1.184, allocations: 44.82 MB / 0.9644 GB, free: 164.8 MB / 0.67 GB Notification: Performance of buildModelFMU: Generate platform static: time 9.964/11.15, allocations: 17.88 kB / 0.9645 GB, free: 164.8 MB / 0.67 GB (rm -f IDEAS_IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T.pipe ; mkfifo IDEAS_IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T.pipe >> ../files/IDEAS_IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T.sim & python3 -m fmpy simulate --output-file IDEAS_IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T_res.csv --start-time 0 --stop-time 172800 --timeout 50 --relative-tolerance 1e-08 --interface-type ModelExchange --solver CVode --output-interval 69.12 IDEAS_IDEAS_Fluid_HeatExchangers_Examples_AirHeater_T.fmu > IDEAS_IDEAS.Fluid.HeatExchangers.Examples.AirHeater_T.pipe 2>&1)