Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart.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: "" <> buildModelFMU(Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart,fileNamePrefix="Buildings_maint_8_0_x_Buildings_BoundaryConditions_WeatherData_Validation_ThreeYears_usingTwoYearDataNegativeStart",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart,fileNamePrefix="Buildings_maint_8_0_x_Buildings_BoundaryConditions_WeatherData_Validation_ThreeYears_usingTwoYearDataNegativeStart",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.44/1.44, allocations: 288.4 MB / 303.6 MB, free: 8.16 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.0009414/0.0009415, allocations: 176.5 kB / 372.3 MB, free: 10.13 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.148/1.148, allocations: 205.4 MB / 0.631 GB, free: 9.883 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0007712/0.0007712, allocations: 114.2 kB / 0.7444 GB, free: 5.785 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0003135/0.0003136, allocations: 15.16 kB / 0.8676 GB, free: 141.7 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.147/0.1474, allocations: 115.3 MB / 0.9802 GB, free: 27.25 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart): time 0.003207/0.1506, allocations: 3.46 MB / 0.9836 GB, free: 23.77 MB / 0.6198 GB Notification: Performance of NFInst.instExpressions: time 0.4313/0.5819, allocations: 136.4 MB / 1.117 GB, free: 2.387 MB / 0.6823 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004973/0.5825, allocations: 13.22 kB / 1.117 GB, free: 2.383 MB / 0.6823 GB Notification: Performance of NFTyping.typeComponents: time 0.0004163/0.5829, allocations: 127.9 kB / 1.117 GB, free: 2.324 MB / 0.6823 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 0.001044/0.584, allocations: 332.4 kB / 1.117 GB, free: 2.238 MB / 0.6823 GB Notification: Performance of NFTyping.typeClassSections: time 0.00131/0.5853, allocations: 0.523 MB / 1.118 GB, free: 2.195 MB / 0.6823 GB Notification: Performance of NFFlatten.flatten: time 0.000969/0.5862, allocations: 0.9444 MB / 1.119 GB, free: 2.035 MB / 0.6823 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006215/0.5869, allocations: 476.8 kB / 1.119 GB, free: 1.938 MB / 0.6823 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003843/0.5873, allocations: 241.3 kB / 1.119 GB, free: 1.875 MB / 0.6823 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003808/0.5877, allocations: 267.3 kB / 1.12 GB, free: 1.805 MB / 0.6823 GB Notification: Performance of NFPackage.collectConstants: time 9.681e-05/0.5878, allocations: 19.19 kB / 1.12 GB, free: 1.805 MB / 0.6823 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0004718/0.5882, allocations: 210.7 kB / 1.12 GB, free: 1.789 MB / 0.6823 GB Notification: Performance of NFScalarize.scalarize: time 0.0001398/0.5884, allocations: 144.3 kB / 1.12 GB, free: 1.758 MB / 0.6823 GB Notification: Performance of NFVerifyModel.verify: time 0.0002604/0.5887, allocations: 342.8 kB / 1.12 GB, free: 1.609 MB / 0.6823 GB Notification: Performance of NFConvertDAE.convert: time 0.0007826/0.5894, allocations: 0.872 MB / 1.121 GB, free: 1.531 MB / 0.6823 GB Notification: Performance of FrontEnd - DAE generated: time 3.526e-06/0.5895, allocations: 0 / 1.121 GB, free: 1.531 MB / 0.6823 GB Notification: Performance of FrontEnd: time 5.671e-06/0.5895, allocations: 1.375 kB / 1.121 GB, free: 1.531 MB / 0.6823 GB Notification: Performance of Transformations before backend: time 3.029e-05/0.5895, allocations: 0 / 1.121 GB, free: 1.531 MB / 0.6823 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 154 * Number of variables: 154 Notification: Performance of Generate backend data structure: time 0.001622/0.5911, allocations: 0.9888 MB / 1.122 GB, free: 16.87 MB / 0.698 GB Notification: Performance of prepare preOptimizeDAE: time 3.393e-05/0.5912, allocations: 10.12 kB / 1.122 GB, free: 16.87 MB / 0.698 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000143/0.5913, allocations: 104.2 kB / 1.122 GB, free: 16.83 MB / 0.698 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002488/0.5916, allocations: 102.6 kB / 1.122 GB, free: 16.78 MB / 0.698 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007991/0.5924, allocations: 0.6509 MB / 1.123 GB, free: 16.48 MB / 0.698 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.844e-05/0.5924, allocations: 45.31 kB / 1.123 GB, free: 16.48 MB / 0.698 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.091e-05/0.5925, allocations: 65.83 kB / 1.123 GB, free: 16.47 MB / 0.698 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009328/0.5934, allocations: 0.687 MB / 1.124 GB, free: 16.29 MB / 0.698 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.044e-05/0.5935, allocations: 5.5 kB / 1.124 GB, free: 16.29 MB / 0.698 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.048e-05/0.5935, allocations: 31.39 kB / 1.124 GB, free: 16.29 MB / 0.698 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.621e-05/0.5936, allocations: 15.5 kB / 1.124 GB, free: 16.29 MB / 0.698 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001136/0.5947, allocations: 0.908 MB / 1.125 GB, free: 16.28 MB / 0.698 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002557/0.5973, allocations: 2.338 MB / 1.127 GB, free: 15.2 MB / 0.698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007034/0.598, allocations: 0.5973 MB / 1.128 GB, free: 15.12 MB / 0.698 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002459/0.5982, allocations: 224.4 kB / 1.128 GB, free: 15.1 MB / 0.698 GB Notification: Performance of preOpt evalFunc (simulation): time 5.194e-05/0.5983, allocations: 28.16 kB / 1.128 GB, free: 15.1 MB / 0.698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004262/0.5987, allocations: 342.8 kB / 1.128 GB, free: 15.02 MB / 0.698 GB Notification: Performance of pre-optimization done (n=61): time 1.833e-06/0.5987, allocations: 0 / 1.128 GB, free: 15.02 MB / 0.698 GB Notification: Performance of matching and sorting (n=61): time 0.0009313/0.5997, allocations: 0.7021 MB / 1.129 GB, free: 14.94 MB / 0.698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.525e-05/0.5998, allocations: 242.6 kB / 1.129 GB, free: 14.66 MB / 0.698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005221/0.6003, allocations: 0.576 MB / 1.13 GB, free: 14.52 MB / 0.698 GB Notification: Performance of collectPreVariables (initialization): time 4.051e-05/0.6003, allocations: 38.02 kB / 1.13 GB, free: 14.49 MB / 0.698 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001805/0.6005, allocations: 329 kB / 1.13 GB, free: 14.34 MB / 0.698 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001178/0.6007, allocations: 207 kB / 1.13 GB, free: 14.21 MB / 0.698 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.16e-05/0.6007, allocations: 12.62 kB / 1.13 GB, free: 14.21 MB / 0.698 GB Notification: Performance of setup shared object (initialization): time 0.0001142/0.6008, allocations: 376.6 kB / 1.13 GB, free: 13.89 MB / 0.698 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002166/0.601, allocations: 168.5 kB / 1.131 GB, free: 13.89 MB / 0.698 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002909/0.6013, allocations: 283.1 kB / 1.131 GB, free: 13.79 MB / 0.698 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005056/0.6018, allocations: 447.4 kB / 1.131 GB, free: 13.72 MB / 0.698 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.625e-06/0.6018, allocations: 3.531 kB / 1.131 GB, free: 13.72 MB / 0.698 GB Notification: Performance of matching and sorting (n=68) (initialization): time 0.0006624/0.6025, allocations: 0.5444 MB / 1.132 GB, free: 13.63 MB / 0.698 GB Notification: Performance of prepare postOptimizeDAE: time 1.255e-05/0.6025, allocations: 6.344 kB / 1.132 GB, free: 13.63 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.839e-06/0.6025, allocations: 0 / 1.132 GB, free: 13.63 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.278e-05/0.6026, allocations: 2.781 kB / 1.132 GB, free: 13.63 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003986/0.603, allocations: 120.5 kB / 1.132 GB, free: 13.62 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.506e-06/0.603, allocations: 3.188 kB / 1.132 GB, free: 13.62 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004022/0.6034, allocations: 87.03 kB / 1.132 GB, free: 13.59 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.04e-05/0.6034, allocations: 27.19 kB / 1.132 GB, free: 13.59 MB / 0.698 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 6 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition2,$whenCondition1,$PRE.weaDat.conTimMin.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTim.tNext) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (68): * Single equations (assignments): 68 * 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: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0002573/0.6037, allocations: 245.5 kB / 1.132 GB, free: 13.46 MB / 0.698 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.822e-05/0.6038, allocations: 69.41 kB / 1.132 GB, free: 13.43 MB / 0.698 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001061/0.6049, allocations: 0.7482 MB / 1.133 GB, free: 13.33 MB / 0.698 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.54e-06/0.6049, allocations: 6.281 kB / 1.133 GB, free: 13.33 MB / 0.698 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.258e-06/0.6049, allocations: 0 / 1.133 GB, free: 13.33 MB / 0.698 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.105e-06/0.6049, allocations: 4.453 kB / 1.133 GB, free: 13.33 MB / 0.698 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0007441/0.6056, allocations: 0.8903 MB / 1.134 GB, free: 13 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.484e-06/0.6057, allocations: 0 / 1.134 GB, free: 13 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003616/0.606, allocations: 119.8 kB / 1.134 GB, free: 13 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.596e-06/0.606, allocations: 3.312 kB / 1.134 GB, free: 13 MB / 0.698 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.248e-05/0.6061, allocations: 21.62 kB / 1.134 GB, free: 13 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.056e-06/0.6061, allocations: 3.375 kB / 1.134 GB, free: 13 MB / 0.698 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.562e-06/0.6061, allocations: 0 / 1.134 GB, free: 13 MB / 0.698 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007336/0.6068, allocations: 0.6434 MB / 1.135 GB, free: 12.85 MB / 0.698 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002355/0.6071, allocations: 256.5 kB / 1.135 GB, free: 12.71 MB / 0.698 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.093e-05/0.6072, allocations: 17.41 kB / 1.135 GB, free: 12.71 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003921/0.6076, allocations: 53.56 kB / 1.135 GB, free: 12.71 MB / 0.698 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.984e-05/0.6077, allocations: 60.72 kB / 1.135 GB, free: 12.7 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.978e-05/0.6077, allocations: 23.03 kB / 1.135 GB, free: 12.7 MB / 0.698 GB Notification: Performance of sorting global known variables: time 0.0003635/0.6081, allocations: 417.2 kB / 1.136 GB, free: 12.6 MB / 0.698 GB Notification: Performance of sort global known variables: time 1.4e-07/0.6081, allocations: 3.344 kB / 1.136 GB, free: 12.6 MB / 0.698 GB Notification: Performance of remove unused functions: time 0.0004977/0.6086, allocations: 216.2 kB / 1.136 GB, free: 12.57 MB / 0.698 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of discrete states: 2 (weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (72): * Single equations (assignments): 70 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001885/0.6105, allocations: 1.63 MB / 1.137 GB, free: 11.77 MB / 0.698 GB Notification: Performance of simCode: created initialization part: time 0.0006349/0.6111, allocations: 479.7 kB / 1.138 GB, free: 11.71 MB / 0.698 GB Notification: Performance of simCode: created event and clocks part: time 2.064e-06/0.6111, allocations: 0 / 1.138 GB, free: 11.71 MB / 0.698 GB Notification: Performance of simCode: created simulation system equations: time 0.0003343/0.6115, allocations: 272.3 kB / 1.138 GB, free: 11.67 MB / 0.698 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009018/0.6124, allocations: 237.2 kB / 1.138 GB, free: 11.6 MB / 0.698 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005578/0.618, allocations: 3.895 MB / 1.142 GB, free: 9.887 MB / 0.698 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004307/0.6184, allocations: 0.9465 MB / 1.143 GB, free: 9.082 MB / 0.698 GB Notification: Performance of simCode: alias equations: time 0.0006419/0.6191, allocations: 236.3 kB / 1.143 GB, free: 8.969 MB / 0.698 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003299/0.6194, allocations: 296.3 kB / 1.144 GB, free: 8.926 MB / 0.698 GB Notification: Performance of SimCode: time 3e-07/0.6194, allocations: 0 / 1.144 GB, free: 8.926 MB / 0.698 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.143/0.7624, allocations: 16.77 MB / 1.16 GB, free: 0.918 MB / 0.698 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002002/0.7626, allocations: 287.8 kB / 1.16 GB, free: 0.5586 MB / 0.698 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.436/3.198, allocations: 0 / 1.16 GB, free: 0.5586 MB / 0.698 GB (rm -f Buildings_maint.8.0.x_Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart.pipe ; mkfifo Buildings_maint.8.0.x_Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart.pipe ; head -c 1048576 < Buildings_maint.8.0.x_Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart.pipe >> ../files/Buildings_maint.8.0.x_Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_8_0_x_Buildings_BoundaryConditions_WeatherData_Validation_ThreeYears_usingTwoYearDataNegativeStart_fmu --startTime=-4.71744e+07 --stopTime=4.74336e+07 --timeout=50 --tolerance=1e-06 Buildings_maint_8_0_x_Buildings_BoundaryConditions_WeatherData_Validation_ThreeYears_usingTwoYearDataNegativeStart.fmu > Buildings_maint.8.0.x_Buildings.BoundaryConditions.WeatherData.Validation.ThreeYears_usingTwoYearDataNegativeStart.pipe 2>&1)