Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarHourAngle.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.SolarGeometry.BaseClasses.Examples.SolarHourAngle,fileNamePrefix="Buildings_maint_8_0_x_Buildings_BoundaryConditions_SolarGeometry_BaseClasses_Examples_SolarHourAngle",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarHourAngle,fileNamePrefix="Buildings_maint_8_0_x_Buildings_BoundaryConditions_SolarGeometry_BaseClasses_Examples_SolarHourAngle",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 1.788/1.788, allocations: 288.4 MB / 303.3 MB, free: 8.035 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001231/0.001231, allocations: 183.2 kB / 372 MB, free: 10.19 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.634/1.634, allocations: 205.4 MB / 0.6307 GB, free: 9.957 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0009876/0.0009875, allocations: 85.17 kB / 0.744 GB, free: 5.891 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0004547/0.0004551, allocations: 11.34 kB / 0.867 GB, free: 142 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2422/0.2427, allocations: 115.3 MB / 0.9796 GB, free: 27.55 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarHourAngle): time 0.004324/0.2471, allocations: 3.471 MB / 0.983 GB, free: 24.05 MB / 0.6198 GB Notification: Performance of NFInst.instExpressions: time 0.7018/0.949, allocations: 136.4 MB / 1.116 GB, free: 2.277 MB / 0.6823 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008093/0.9499, allocations: 20.08 kB / 1.116 GB, free: 2.27 MB / 0.6823 GB Notification: Performance of NFTyping.typeComponents: time 0.0005189/0.9504, allocations: 122.9 kB / 1.116 GB, free: 2.215 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 0.001413/0.9518, allocations: 350.7 kB / 1.117 GB, free: 2.121 MB / 0.6823 GB Notification: Performance of NFTyping.typeClassSections: time 0.002157/0.954, allocations: 0.5766 MB / 1.117 GB, free: 2.066 MB / 0.6823 GB Notification: Performance of NFFlatten.flatten: time 0.001671/0.9557, allocations: 0.9756 MB / 1.118 GB, free: 1.914 MB / 0.6823 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000862/0.9566, allocations: 440.6 kB / 1.119 GB, free: 1.844 MB / 0.6823 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0007335/0.9573, allocations: 283.8 kB / 1.119 GB, free: 1.766 MB / 0.6823 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005555/0.9579, allocations: 302 kB / 1.119 GB, free: 1.68 MB / 0.6823 GB Notification: Performance of NFPackage.collectConstants: time 8.686e-05/0.958, allocations: 20.19 kB / 1.119 GB, free: 1.68 MB / 0.6823 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001073/0.959, allocations: 264.8 kB / 1.119 GB, free: 1.668 MB / 0.6823 GB Notification: Performance of NFScalarize.scalarize: time 0.0002466/0.9593, allocations: 155.9 kB / 1.12 GB, free: 1.633 MB / 0.6823 GB Notification: Performance of NFVerifyModel.verify: time 0.0003263/0.9596, allocations: 172.1 kB / 1.12 GB, free: 17.57 MB / 0.698 GB Notification: Performance of NFConvertDAE.convert: time 0.001482/0.9611, allocations: 0.9976 MB / 1.121 GB, free: 17.49 MB / 0.698 GB Notification: Performance of FrontEnd - DAE generated: time 8.656e-06/0.9611, allocations: 1.312 kB / 1.121 GB, free: 17.49 MB / 0.698 GB Notification: Performance of FrontEnd: time 3.026e-06/0.9612, allocations: 0 / 1.121 GB, free: 17.49 MB / 0.698 GB Notification: Performance of Transformations before backend: time 1.592e-05/0.9612, allocations: 4 kB / 1.121 GB, free: 17.48 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: 191 * Number of variables: 191 Notification: Performance of Generate backend data structure: time 0.002207/0.9634, allocations: 1.095 MB / 1.122 GB, free: 16.79 MB / 0.698 GB Notification: Performance of prepare preOptimizeDAE: time 5.34e-05/0.9635, allocations: 9.656 kB / 1.122 GB, free: 16.79 MB / 0.698 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000188/0.9637, allocations: 123.9 kB / 1.122 GB, free: 16.75 MB / 0.698 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0009551/0.9646, allocations: 189.5 kB / 1.122 GB, free: 16.68 MB / 0.698 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001075/0.9657, allocations: 0.6757 MB / 1.123 GB, free: 16.39 MB / 0.698 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.292e-05/0.9658, allocations: 57.98 kB / 1.123 GB, free: 16.38 MB / 0.698 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001143/0.9659, allocations: 72.5 kB / 1.123 GB, free: 16.38 MB / 0.698 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001598/0.9675, allocations: 0.8247 MB / 1.124 GB, free: 16.23 MB / 0.698 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.826e-05/0.9675, allocations: 5.688 kB / 1.124 GB, free: 16.23 MB / 0.698 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.978e-05/0.9676, allocations: 35.3 kB / 1.124 GB, free: 16.22 MB / 0.698 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.559e-05/0.9677, allocations: 24.59 kB / 1.124 GB, free: 16.22 MB / 0.698 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001747/0.9694, allocations: 1.04 MB / 1.125 GB, free: 16.2 MB / 0.698 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003939/0.9734, allocations: 2.332 MB / 1.127 GB, free: 15.4 MB / 0.698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001379/0.9748, allocations: 0.7775 MB / 1.128 GB, free: 15.27 MB / 0.698 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005448/0.9753, allocations: 270.8 kB / 1.128 GB, free: 15.25 MB / 0.698 GB Notification: Performance of preOpt evalFunc (simulation): time 9.698e-05/0.9754, allocations: 28.3 kB / 1.128 GB, free: 15.25 MB / 0.698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0008692/0.9763, allocations: 419.3 kB / 1.129 GB, free: 15.18 MB / 0.698 GB Notification: Performance of pre-optimization done (n=70): time 3.287e-06/0.9763, allocations: 0 / 1.129 GB, free: 15.18 MB / 0.698 GB Notification: Performance of matching and sorting (n=70): time 0.002981/0.9793, allocations: 1.063 MB / 1.13 GB, free: 14.97 MB / 0.698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001676/0.9795, allocations: 196.6 kB / 1.13 GB, free: 14.75 MB / 0.698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0008324/0.9803, allocations: 0.5437 MB / 1.13 GB, free: 14.63 MB / 0.698 GB Notification: Performance of collectPreVariables (initialization): time 7.882e-05/0.9804, allocations: 41.14 kB / 1.13 GB, free: 14.6 MB / 0.698 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003241/0.9808, allocations: 366.7 kB / 1.131 GB, free: 14.43 MB / 0.698 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001917/0.981, allocations: 231.4 kB / 1.131 GB, free: 14.28 MB / 0.698 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.131e-05/0.981, allocations: 13.34 kB / 1.131 GB, free: 14.28 MB / 0.698 GB Notification: Performance of setup shared object (initialization): time 0.0001826/0.9812, allocations: 374.1 kB / 1.131 GB, free: 13.97 MB / 0.698 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003908/0.9816, allocations: 211.8 kB / 1.131 GB, free: 13.96 MB / 0.698 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004807/0.9821, allocations: 313.2 kB / 1.132 GB, free: 13.88 MB / 0.698 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004483/0.9825, allocations: 258.4 kB / 1.132 GB, free: 13.87 MB / 0.698 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.146e-06/0.9825, allocations: 1.75 kB / 1.132 GB, free: 13.87 MB / 0.698 GB Notification: Performance of matching and sorting (n=75) (initialization): time 0.001616/0.9842, allocations: 0.695 MB / 1.133 GB, free: 13.77 MB / 0.698 GB Notification: Performance of prepare postOptimizeDAE: time 2.995e-05/0.9842, allocations: 13.45 kB / 1.133 GB, free: 13.77 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.005e-05/0.9842, allocations: 3.344 kB / 1.133 GB, free: 13.77 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000599/0.9848, allocations: 86.69 kB / 1.133 GB, free: 13.75 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005263/0.9854, allocations: 133.8 kB / 1.133 GB, free: 13.75 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002052/0.9874, allocations: 1.521 MB / 1.134 GB, free: 12.43 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006062/0.988, allocations: 73.25 kB / 1.134 GB, free: 12.41 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.101e-05/0.9881, allocations: 25.97 kB / 1.134 GB, free: 12.41 MB / 0.698 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * 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 (73): * Single equations (assignments): 72 * 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: 0 * Non-linear torn systems: 1 {1 2} Notification: Performance of prepare postOptimizeDAE: time 0.000452/0.9886, allocations: 245.8 kB / 1.135 GB, free: 12.29 MB / 0.698 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001312/0.9887, allocations: 81.95 kB / 1.135 GB, free: 12.24 MB / 0.698 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002055/0.9908, allocations: 0.9733 MB / 1.136 GB, free: 11.96 MB / 0.698 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.626e-06/0.9908, allocations: 9 kB / 1.136 GB, free: 11.96 MB / 0.698 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.775e-06/0.9908, allocations: 0 / 1.136 GB, free: 11.96 MB / 0.698 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.027e-05/0.9908, allocations: 3.984 kB / 1.136 GB, free: 11.96 MB / 0.698 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003049/0.9939, allocations: 1.784 MB / 1.138 GB, free: 11.27 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.949e-06/0.9939, allocations: 0 / 1.138 GB, free: 11.27 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005317/0.9944, allocations: 145.9 kB / 1.138 GB, free: 11.23 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005349/0.995, allocations: 90.31 kB / 1.138 GB, free: 11.2 MB / 0.698 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.695e-05/0.995, allocations: 18.67 kB / 1.138 GB, free: 11.19 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002147/0.9972, allocations: 1.539 MB / 1.139 GB, free: 9.82 MB / 0.698 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.905e-06/0.9972, allocations: 1.344 kB / 1.139 GB, free: 9.82 MB / 0.698 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002149/0.9994, allocations: 0.8892 MB / 1.14 GB, free: 9.512 MB / 0.698 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004251/0.9998, allocations: 265.2 kB / 1.14 GB, free: 9.324 MB / 0.698 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.727e-05/0.9999, allocations: 16.5 kB / 1.14 GB, free: 9.324 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005795/1, allocations: 67.25 kB / 1.14 GB, free: 9.309 MB / 0.698 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001313/1.001, allocations: 60.03 kB / 1.141 GB, free: 9.285 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.382e-05/1.001, allocations: 30.45 kB / 1.141 GB, free: 9.281 MB / 0.698 GB Notification: Performance of sorting global known variables: time 0.0005886/1.001, allocations: 400.1 kB / 1.141 GB, free: 9.141 MB / 0.698 GB Notification: Performance of sort global known variables: time 1.3e-07/1.001, allocations: 1 kB / 1.141 GB, free: 9.141 MB / 0.698 GB Notification: Performance of remove unused functions: time 0.0008985/1.002, allocations: 253.2 kB / 1.141 GB, free: 9.094 MB / 0.698 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of discrete states: 2 (weaDat.conTim.tNext,weaDat.conTimMin.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (81): * Single equations (assignments): 78 * 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: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {1 3} Notification: Performance of Backend phase and start with SimCode phase: time 0.003194/1.005, allocations: 1.905 MB / 1.143 GB, free: 8.074 MB / 0.698 GB Notification: Performance of simCode: created initialization part: time 0.001573/1.007, allocations: 0.7051 MB / 1.144 GB, free: 7.859 MB / 0.698 GB Notification: Performance of simCode: created event and clocks part: time 4.077e-06/1.007, allocations: 1.125 kB / 1.144 GB, free: 7.859 MB / 0.698 GB Notification: Performance of simCode: created simulation system equations: time 0.0008633/1.008, allocations: 485.2 kB / 1.144 GB, free: 7.676 MB / 0.698 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001255/1.009, allocations: 242.4 kB / 1.144 GB, free: 7.609 MB / 0.698 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01012/1.019, allocations: 4.493 MB / 1.149 GB, free: 5.648 MB / 0.698 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007528/1.02, allocations: 0.9914 MB / 1.15 GB, free: 4.828 MB / 0.698 GB Notification: Performance of simCode: alias equations: time 0.001056/1.021, allocations: 247.3 kB / 1.15 GB, free: 4.707 MB / 0.698 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004822/1.022, allocations: 335.8 kB / 1.15 GB, free: 4.664 MB / 0.698 GB Notification: Performance of SimCode: time 1.092e-06/1.022, allocations: 1.156 kB / 1.15 GB, free: 4.664 MB / 0.698 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04255/1.064, allocations: 18.96 MB / 1.169 GB, free: 11.54 MB / 0.7136 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002417/1.065, allocations: 303.2 kB / 1.169 GB, free: 11.18 MB / 0.7136 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.885/3.949, allocations: 2.656 kB / 1.169 GB, free: 11.18 MB / 0.7136 GB (rm -f Buildings_maint.8.0.x_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarHourAngle.pipe ; mkfifo Buildings_maint.8.0.x_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarHourAngle.pipe ; head -c 1048576 < Buildings_maint.8.0.x_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarHourAngle.pipe >> ../files/Buildings_maint.8.0.x_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarHourAngle.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_8_0_x_Buildings_BoundaryConditions_SolarGeometry_BaseClasses_Examples_SolarHourAngle_fmu --startTime=0 --stopTime=86400 --timeout=50 --tolerance=1e-06 Buildings_maint_8_0_x_Buildings_BoundaryConditions_SolarGeometry_BaseClasses_Examples_SolarHourAngle.fmu > Buildings_maint.8.0.x_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarHourAngle.pipe 2>&1)