Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo) Running command: translateModel(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement,tolerance=1e-06,outputFormat="empty",numberOfIntervals=17520,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement") translateModel(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement,tolerance=1e-06,outputFormat="empty",numberOfIntervals=17520,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.771/1.771, allocations: 288.4 MB / 303.4 MB, free: 8.094 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.0009634/0.0009636, allocations: 188.4 kB / 372 MB, free: 10.25 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.332/1.332, allocations: 205.4 MB / 0.6307 GB, free: 9.969 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0007262/0.0007259, allocations: 94.22 kB / 0.7441 GB, free: 5.902 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0004226/0.0004228, allocations: 10.47 kB / 0.867 GB, free: 142.1 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1881/0.1885, allocations: 115.3 MB / 0.9796 GB, free: 27.66 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement): time 0.6566/0.8452, allocations: 145.1 MB / 1.121 GB, free: 1.391 MB / 0.6823 GB Notification: Performance of NFInst.instExpressions: time 0.03251/0.8777, allocations: 24.37 MB / 1.145 GB, free: 11.9 MB / 0.698 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00395/0.8818, allocations: 55.12 kB / 1.145 GB, free: 11.88 MB / 0.698 GB Notification: Performance of NFTyping.typeComponents: time 0.002216/0.884, allocations: 0.839 MB / 1.146 GB, free: 11.53 MB / 0.698 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/BoundaryConditions/WeatherData/BaseClasses/getHeaderElementTMY3.mo:2:1-105:25:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘ contains a call to impure function ‘Modelica.Utilities.Streams.readLine‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/BoundaryConditions/WeatherData/BaseClasses/getLongitudeTMY3.mo:2:1-48:21:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLongitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/BoundaryConditions/WeatherData/BaseClasses/getLatitudeTMY3.mo:2:1-48:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLatitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/BoundaryConditions/WeatherData/BaseClasses/getTimeZoneTMY3.mo:2:1-47:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getTimeZoneTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. Notification: Performance of NFTyping.typeBindings: time 0.00493/0.8889, allocations: 1.324 MB / 1.147 GB, free: 10.7 MB / 0.698 GB Notification: Performance of NFTyping.typeClassSections: time 0.004105/0.8931, allocations: 1.14 MB / 1.148 GB, free: 10.23 MB / 0.698 GB Notification: Performance of NFFlatten.flatten: time 0.006305/0.8994, allocations: 4.186 MB / 1.152 GB, free: 8.863 MB / 0.698 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004874/0.9043, allocations: 2.742 MB / 1.155 GB, free: 7.773 MB / 0.698 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002794/0.9071, allocations: 1.256 MB / 1.156 GB, free: 7.266 MB / 0.698 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003186/0.9103, allocations: 1.706 MB / 1.158 GB, free: 6.469 MB / 0.698 GB Notification: Performance of NFPackage.collectConstants: time 0.0004672/0.9108, allocations: 100.7 kB / 1.158 GB, free: 6.465 MB / 0.698 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002077/0.9129, allocations: 0.5304 MB / 1.159 GB, free: 6.344 MB / 0.698 GB Notification: Performance of NFScalarize.scalarize: time 0.0007071/0.9136, allocations: 0.6692 MB / 1.159 GB, free: 6 MB / 0.698 GB Notification: Performance of NFVerifyModel.verify: time 0.0009229/0.9145, allocations: 0.5944 MB / 1.16 GB, free: 5.613 MB / 0.698 GB Notification: Performance of NFConvertDAE.convert: time 0.00512/0.9196, allocations: 4.021 MB / 1.164 GB, free: 2.781 MB / 0.698 GB Notification: Performance of FrontEnd - DAE generated: time 6.502e-06/0.9197, allocations: 0 / 1.164 GB, free: 2.781 MB / 0.698 GB Notification: Performance of FrontEnd: time 2.896e-06/0.9197, allocations: 0 / 1.164 GB, free: 2.781 MB / 0.698 GB Notification: Performance of Transformations before backend: time 0.0001614/0.9198, allocations: 0 / 1.164 GB, free: 2.781 MB / 0.698 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 768 * Number of variables: 768 Notification: Performance of Generate backend data structure: time 0.009707/0.9296, allocations: 3.639 MB / 1.167 GB, free: 308 kB / 0.698 GB Notification: Performance of prepare preOptimizeDAE: time 4.822e-05/0.9296, allocations: 8.344 kB / 1.167 GB, free: 308 kB / 0.698 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0138/0.9434, allocations: 2.68 MB / 1.17 GB, free: 15.06 MB / 0.7136 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006054/0.9495, allocations: 2.089 MB / 1.172 GB, free: 13.59 MB / 0.7136 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001839/0.9498, allocations: 234.9 kB / 1.172 GB, free: 13.48 MB / 0.7136 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007165/0.9505, allocations: 294.1 kB / 1.173 GB, free: 13.38 MB / 0.7136 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01187/0.9624, allocations: 4.802 MB / 1.177 GB, free: 10.61 MB / 0.7136 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.965e-05/0.9624, allocations: 7.344 kB / 1.177 GB, free: 10.61 MB / 0.7136 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003545/0.9628, allocations: 120.6 kB / 1.177 GB, free: 10.52 MB / 0.7136 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.711e-05/0.9629, allocations: 73.88 kB / 1.177 GB, free: 10.52 MB / 0.7136 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0158/0.9787, allocations: 5.917 MB / 1.183 GB, free: 7.648 MB / 0.7136 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 0.02799/1.007, allocations: 13.39 MB / 1.196 GB, free: 11.66 MB / 0.7292 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01017/1.017, allocations: 4.358 MB / 1.201 GB, free: 7.301 MB / 0.7292 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005364/1.022, allocations: 2.214 MB / 1.203 GB, free: 5.086 MB / 0.7292 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000976/1.023, allocations: 0.6696 MB / 1.203 GB, free: 4.285 MB / 0.7292 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005101/1.028, allocations: 2.272 MB / 1.206 GB, free: 1.977 MB / 0.7292 GB Notification: Performance of pre-optimization done (n=255): time 5.781e-06/1.028, allocations: 0 / 1.206 GB, free: 1.977 MB / 0.7292 GB Notification: Performance of matching and sorting (n=255): time 0.01634/1.045, allocations: 6.646 MB / 1.212 GB, free: 11.21 MB / 0.7448 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001277/1.045, allocations: 213.9 kB / 1.212 GB, free: 10.95 MB / 0.7448 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003527/1.049, allocations: 2.27 MB / 1.214 GB, free: 8.648 MB / 0.7448 GB Notification: Performance of collectPreVariables (initialization): time 0.000529/1.049, allocations: 73.7 kB / 1.215 GB, free: 8.57 MB / 0.7448 GB Notification: Performance of collectInitialEqns (initialization): time 0.001155/1.05, allocations: 1.282 MB / 1.216 GB, free: 7.27 MB / 0.7448 GB Notification: Performance of collectInitialBindings (initialization): time 0.0009351/1.051, allocations: 0.8393 MB / 1.217 GB, free: 6.418 MB / 0.7448 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001863/1.051, allocations: 48 kB / 1.217 GB, free: 6.371 MB / 0.7448 GB Notification: Performance of setup shared object (initialization): time 0.0001679/1.052, allocations: 398.5 kB / 1.217 GB, free: 5.977 MB / 0.7448 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004156/1.056, allocations: 1.8 MB / 1.219 GB, free: 4.172 MB / 0.7448 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004457/1.06, allocations: 2.092 MB / 1.221 GB, free: 2.004 MB / 0.7448 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004402/1.065, allocations: 1.94 MB / 1.223 GB, free: 44 kB / 0.7448 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.107e-05/1.065, allocations: 4 kB / 1.223 GB, free: 40 kB / 0.7448 GB Notification: Performance of matching and sorting (n=292) (initialization): time 0.01055/1.075, allocations: 4.519 MB / 1.227 GB, free: 11.46 MB / 0.7605 GB Notification: Performance of prepare postOptimizeDAE: time 3.738e-05/1.075, allocations: 8 kB / 1.227 GB, free: 11.45 MB / 0.7605 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.494e-05/1.075, allocations: 4.406 kB / 1.227 GB, free: 11.45 MB / 0.7605 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006599/1.076, allocations: 235.8 kB / 1.227 GB, free: 11.22 MB / 0.7605 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00385/1.08, allocations: 0.7293 MB / 1.228 GB, free: 10.49 MB / 0.7605 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003996/1.084, allocations: 3.093 MB / 1.231 GB, free: 7.266 MB / 0.7605 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004046/1.088, allocations: 0.4975 MB / 1.232 GB, free: 6.766 MB / 0.7605 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004426/1.088, allocations: 108.1 kB / 1.232 GB, free: 6.66 MB / 0.7605 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 13 ($whenCondition1,$PRE.intGai.nextTimeEvent,$whenCondition3,$whenCondition2,$PRE.weaDat.conTimMin.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTim.tNext,intGai.nextTimeEvent,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEventScaled,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.canRepeatWeatherFile) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (270): * Single equations (assignments): 269 * 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: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(2,100.0%) 21} * Non-linear torn systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.002326/1.091, allocations: 0.892 MB / 1.233 GB, free: 5.758 MB / 0.7605 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006749/1.091, allocations: 260.8 kB / 1.233 GB, free: 5.5 MB / 0.7605 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01154/1.103, allocations: 5.057 MB / 1.238 GB, free: 384 kB / 0.7605 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.531e-05/1.103, allocations: 32 kB / 1.238 GB, free: 352 kB / 0.7605 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.049e-05/1.103, allocations: 3.953 kB / 1.238 GB, free: 348 kB / 0.7605 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.686e-05/1.103, allocations: 15.95 kB / 1.238 GB, free: 332 kB / 0.7605 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01746/1.12, allocations: 8.553 MB / 1.246 GB, free: 7.633 MB / 0.7761 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.937e-06/1.121, allocations: 4 kB / 1.246 GB, free: 7.629 MB / 0.7761 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003431/1.124, allocations: 0.6786 MB / 1.247 GB, free: 6.949 MB / 0.7761 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008208/1.125, allocations: 259.6 kB / 1.247 GB, free: 6.688 MB / 0.7761 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002221/1.125, allocations: 79.92 kB / 1.247 GB, free: 6.609 MB / 0.7761 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00473/1.13, allocations: 4.792 MB / 1.252 GB, free: 1.527 MB / 0.7761 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.288e-06/1.13, allocations: 7.891 kB / 1.252 GB, free: 1.52 MB / 0.7761 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01568/1.145, allocations: 7.208 MB / 1.259 GB, free: 10.21 MB / 0.7917 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002144/1.148, allocations: 0.8131 MB / 1.26 GB, free: 9.379 MB / 0.7917 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008139/1.149, allocations: 44 kB / 1.26 GB, free: 9.336 MB / 0.7917 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003251/1.152, allocations: 375.5 kB / 1.26 GB, free: 8.969 MB / 0.7917 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000379/1.152, allocations: 161.9 kB / 1.26 GB, free: 8.809 MB / 0.7917 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002863/1.152, allocations: 95.92 kB / 1.26 GB, free: 8.715 MB / 0.7917 GB Notification: Performance of sorting global known variables: time 0.003436/1.156, allocations: 1.652 MB / 1.262 GB, free: 7.047 MB / 0.7917 GB Notification: Performance of sort global known variables: time 2.71e-07/1.156, allocations: 0 / 1.262 GB, free: 7.047 MB / 0.7917 GB Notification: Performance of remove unused functions: time 0.003984/1.16, allocations: 0.9465 MB / 1.263 GB, free: 6.098 MB / 0.7917 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 3 (thermalZoneOneElement.volAir.dynBal.U,thermalZoneOneElement.volAir.dynBal.m,thermalZoneOneElement.extWallRC.thermCapExt[1].T) * Number of discrete variables: 7 ($whenCondition3,$whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext,intGai.nextTimeEvent,intGai.nextTimeEventScaled) * Number of discrete states: 4 (intGai.nextTimeEvent,intGai.nextTimeEventScaled,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (248): * Single equations (assignments): 241 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 4 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 2 {(2,100.0%) 16,(1,100.0%) 3} * Non-linear torn systems: 1 {1 2} Notification: Performance of Backend phase and start with SimCode phase: time 0.00267/1.163, allocations: 0.9719 MB / 1.264 GB, free: 5.387 MB / 0.7917 GB Notification: Performance of simCode: created initialization part: time 0.01083/1.173, allocations: 4.378 MB / 1.268 GB, free: 0.9648 MB / 0.7917 GB Notification: Performance of simCode: created event and clocks part: time 7.394e-06/1.174, allocations: 4 kB / 1.268 GB, free: 0.9609 MB / 0.7917 GB Notification: Performance of simCode: created simulation system equations: time 0.005622/1.179, allocations: 2.502 MB / 1.271 GB, free: 14.43 MB / 0.8073 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004362/1.184, allocations: 0.587 MB / 1.271 GB, free: 13.84 MB / 0.8073 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01795/1.201, allocations: 8.618 MB / 1.28 GB, free: 5.176 MB / 0.8073 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00361/1.205, allocations: 2.35 MB / 1.282 GB, free: 2.789 MB / 0.8073 GB Notification: Performance of simCode: alias equations: time 0.006002/1.211, allocations: 1.057 MB / 1.283 GB, free: 1.734 MB / 0.8073 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001978/1.213, allocations: 251.3 kB / 1.283 GB, free: 1.488 MB / 0.8073 GB Notification: Performance of SimCode: time 1.222e-06/1.213, allocations: 4 kB / 1.283 GB, free: 1.484 MB / 0.8073 GB Notification: Performance of Templates: time 0.07544/1.289, allocations: 39.38 MB / 1.322 GB, free: 10.26 MB / 0.8542 GB make -j1 -f Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.makefile (rm -f Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe ; mkfifo Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe ; head -c 1048576 < Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe >> ../files/Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.sim & ./Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.8.0.x_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe 2>&1)