Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo", uses=false) 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/PhotoVoltaics_TGM 2.0.0/package.mo", uses=false) Using package PhotoVoltaics_TGM with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/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) Using package PhotoVoltaics with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo) Running command: "" <> buildModelFMU(PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Trina_Analytical_20160704",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Trina_Analytical_20160704",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo): time 0.03132/0.03132, allocations: 5.392 MB / 21.03 MB, free: 1.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00843/0.00843, allocations: 99.11 kB / 23.03 MB, free: 0.7812 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001124/0.001124, allocations: 196 kB / 25.14 MB, free: 172 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.299/1.299, allocations: 222.9 MB / 250 MB, free: 8.367 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/package.mo): time 0.009593/0.009593, allocations: 2.316 MB / 303.7 MB, free: 6.465 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001656/0.001656, allocations: 91.86 kB / 419.1 MB, free: 23 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.08965/0.09132, allocations: 51.2 MB / 470.3 MB, free: 3.75 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704): time 0.008469/0.09983, allocations: 6.782 MB / 477.1 MB, free: 12.93 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.005498/0.1054, allocations: 3.122 MB / 480.2 MB, free: 9.805 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001127/0.1065, allocations: 23.94 kB / 480.3 MB, free: 9.781 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.003019/0.1096, allocations: 1.111 MB / 481.4 MB, free: 8.668 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.002753/0.1123, allocations: 0.839 MB / 482.2 MB, free: 7.824 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002031/0.1144, allocations: 0.5326 MB / 482.7 MB, free: 7.297 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001884/0.1163, allocations: 1.386 MB / 484.1 MB, free: 5.906 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001691/0.118, allocations: 1.033 MB / 485.2 MB, free: 4.844 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0008116/0.1188, allocations: 0.5527 MB / 485.7 MB, free: 4.289 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.00105/0.1199, allocations: 0.7198 MB / 486.4 MB, free: 3.566 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0003085/0.1202, allocations: 140 kB / 486.6 MB, free: 3.43 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0009431/0.1211, allocations: 431.7 kB / 487 MB, free: 3.008 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0003052/0.1215, allocations: 291 kB / 487.3 MB, free: 2.723 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.000825/0.1223, allocations: 0.6337 MB / 487.9 MB, free: 2.086 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002223/0.1245, allocations: 1.752 MB / 489.7 MB, free: 336 kB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.168e-06/0.1245, allocations: 0 / 489.7 MB, free: 336 kB / 350.1 MB Notification: Performance of FrontEnd: time 1.774e-06/0.1245, allocations: 0 / 489.7 MB, free: 336 kB / 350.1 MB Notification: Performance of Transformations before backend: time 4.778e-05/0.1246, allocations: 0 / 489.7 MB, free: 336 kB / 350.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 270 * Number of variables: 270 Notification: Performance of Generate backend data structure: time 0.004801/0.1294, allocations: 1.775 MB / 491.4 MB, free: 14.48 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.167e-05/0.1295, allocations: 8.031 kB / 491.5 MB, free: 14.47 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002832/0.1297, allocations: 160.9 kB / 491.6 MB, free: 14.3 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002213/0.132, allocations: 375.2 kB / 492 MB, free: 13.94 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001988/0.134, allocations: 0.756 MB / 492.7 MB, free: 13.14 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 9.023e-05/0.1341, allocations: 82.06 kB / 492.8 MB, free: 13.05 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002874/0.1344, allocations: 111.9 kB / 492.9 MB, free: 12.95 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002378/0.1368, allocations: 1.179 MB / 494.1 MB, free: 11.71 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.374e-05/0.1368, allocations: 8 kB / 494.1 MB, free: 11.7 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001099/0.1369, allocations: 40 kB / 494.1 MB, free: 11.66 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.77e-05/0.137, allocations: 28 kB / 494.2 MB, free: 11.63 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002311/0.1393, allocations: 1.038 MB / 495.2 MB, free: 10.6 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.007111/0.1464, allocations: 4.361 MB / 499.6 MB, free: 6.031 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.002852/0.1493, allocations: 1.774 MB / 0.4896 GB, free: 4.051 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007754/0.1501, allocations: 367.4 kB / 0.4899 GB, free: 3.684 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001573/0.1503, allocations: 170.8 kB / 0.4901 GB, free: 3.48 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0009983/0.1513, allocations: 0.5514 MB / 0.4906 GB, free: 2.887 MB / 366.1 MB Notification: Performance of pre-optimization done (n=79): time 5.891e-06/0.1513, allocations: 3.984 kB / 0.4907 GB, free: 2.883 MB / 366.1 MB Notification: Performance of matching and sorting (n=79): time 0.006263/0.1576, allocations: 1.705 MB / 0.4923 GB, free: 1.133 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000135/0.1578, allocations: 281.7 kB / 0.4926 GB, free: 0.7969 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007834/0.1586, allocations: 0.5575 MB / 0.4931 GB, free: 236 kB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 7.069e-05/0.1587, allocations: 41.7 kB / 0.4932 GB, free: 188 kB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0003679/0.159, allocations: 494.7 kB / 0.4936 GB, free: 15.69 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002344/0.1593, allocations: 252.5 kB / 0.4939 GB, free: 15.44 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003292/0.1596, allocations: 218.7 kB / 0.4941 GB, free: 15.21 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0001481/0.1598, allocations: 382.8 kB / 0.4945 GB, free: 14.83 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007634/0.1605, allocations: 326.4 kB / 0.4948 GB, free: 14.52 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000888/0.1614, allocations: 0.5644 MB / 0.4953 GB, free: 13.86 MB / 382.1 MB Notification: It was not possible to check the given initialization system for consistency symbolically, because the relevant equations are part of an algebraic loop. This is not supported yet. Notification: Performance of analyzeInitialSystem (initialization): time 0.01852/0.18, allocations: 3.619 MB / 0.4989 GB, free: 10.07 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.406e-05/0.18, allocations: 11.94 kB / 0.4989 GB, free: 10.06 MB / 382.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.00283/0.1829, allocations: 1.198 MB / 0.5 GB, free: 8.832 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 8.179e-05/0.183, allocations: 99.28 kB / 0.5001 GB, free: 8.719 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.026e-05/0.183, allocations: 8 kB / 0.5001 GB, free: 8.711 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004889/0.1835, allocations: 89.02 kB / 0.5002 GB, free: 8.621 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001164/0.1847, allocations: 255.5 kB / 0.5005 GB, free: 8.371 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001602/0.1863, allocations: 1.582 MB / 0.502 GB, free: 6.648 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001046/0.1873, allocations: 118.9 kB / 0.5021 GB, free: 6.531 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001203/0.1875, allocations: 51.95 kB / 0.5022 GB, free: 6.48 MB / 382.1 MB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization system: $PRE.irradiance.daysOfYear = PhotoVoltaics.Functions.dayOfTheYear(31, 12, irradiance.startYear). Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 32 * Number of states: 0 () * Number of discrete variables: 27 (writeCSV.firstTrigger,$PRE.writeCSV.firstTrigger,irradiance.year,$PRE.irradiance.year,mpTracker.signv,$PRE.mpTracker.signv,mpTracker.firstTrigger,$PRE.mpTracker.firstTrigger,mpTracker.counter,$PRE.mpTracker.counter,writeCSV.sampleTrigger,$whenCondition4,mpTracker.sampleTrigger,$whenCondition1,irradiance.localDays,irradiance.daysOfYear,$PRE.irradiance.daysOfYear,irradiance.dayOfYear,$PRE.irradiance.dayOfYear,irradiance.startDayOfYear,$PRE.irradiance.startDayOfYear,mpTracker.vRef,$PRE.mpTracker.vRef,$whenCondition3,$whenCondition2,integrator.local_reset,converter.integrator.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (129): * Single equations (assignments): 125 * Array equations: 0 * Algorithm blocks: 3 * 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 {2} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.000611/0.1881, allocations: 377.3 kB / 0.5025 GB, free: 6.082 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000225/0.1883, allocations: 83 kB / 0.5026 GB, free: 6 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002772/0.1911, allocations: 1.253 MB / 0.5038 GB, free: 4.715 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.156e-05/0.1911, allocations: 11.98 kB / 0.5038 GB, free: 4.703 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.32e-06/0.1912, allocations: 4 kB / 0.5038 GB, free: 4.699 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.096e-05/0.1912, allocations: 3.984 kB / 0.5039 GB, free: 4.695 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006961/0.1981, allocations: 2.531 MB / 0.5063 GB, free: 2.082 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.779e-06/0.1982, allocations: 4.031 kB / 0.5063 GB, free: 2.078 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006517/0.1988, allocations: 143.7 kB / 0.5065 GB, free: 1.938 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008122/0.1997, allocations: 326.2 kB / 0.5068 GB, free: 1.609 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001088/0.1998, allocations: 35.97 kB / 0.5068 GB, free: 1.574 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001318/0.2011, allocations: 0.8896 MB / 0.5077 GB, free: 0.6523 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.148e-06/0.2011, allocations: 4.031 kB / 0.5077 GB, free: 0.6484 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2107/0.4119, allocations: 1.92 MB / 0.5096 GB, free: 46.38 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004596/0.4124, allocations: 241 kB / 0.5098 GB, free: 46.29 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00018/0.4126, allocations: 26.47 kB / 0.5098 GB, free: 46.29 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00074/0.4133, allocations: 57.09 kB / 0.5099 GB, free: 46.29 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001713/0.4135, allocations: 56.41 kB / 0.5099 GB, free: 46.29 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.404e-05/0.4136, allocations: 41.34 kB / 0.51 GB, free: 46.29 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0006139/0.4142, allocations: 389.5 kB / 0.5103 GB, free: 46.2 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.3e-07/0.4142, allocations: 0 / 0.5103 GB, free: 46.2 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.001209/0.4154, allocations: 341.2 kB / 0.5107 GB, free: 46.2 MB / 382.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 3 (converter.integrator.y,integrator.y,voltageSource.pin_p.reference.gamma) * Number of discrete variables: 16 ($whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,mpTracker.firstTrigger,mpTracker.sampleTrigger,mpTracker.counter,mpTracker.signv,mpTracker.vRef,irradiance.startDayOfYear,irradiance.dayOfYear,irradiance.daysOfYear,irradiance.year,irradiance.localDays,writeCSV.sampleTrigger,writeCSV.firstTrigger) * Number of discrete states: 16 (irradiance.daysOfYear,irradiance.year,irradiance.startDayOfYear,$whenCondition3,irradiance.dayOfYear,$whenCondition2,mpTracker.signv,mpTracker.vRef,mpTracker.firstTrigger,mpTracker.counter,$whenCondition1,mpTracker.sampleTrigger,mpTracker.power,writeCSV.firstTrigger,$whenCondition4,writeCSV.sampleTrigger) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (80): * Single equations (assignments): 77 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,4)} Notification: Performance of Backend phase and start with SimCode phase: time 0.007124/0.4226, allocations: 2.72 MB / 0.5133 GB, free: 45.28 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002627/0.4252, allocations: 1.157 MB / 0.5144 GB, free: 44.71 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 6.261e-06/0.4253, allocations: 0 / 0.5144 GB, free: 44.71 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001158/0.4264, allocations: 0.6647 MB / 0.5151 GB, free: 44.34 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009398/0.4274, allocations: 142.2 kB / 0.5152 GB, free: 44.3 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01305/0.4405, allocations: 7.111 MB / 0.5222 GB, free: 40.37 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006573/0.4411, allocations: 1.011 MB / 0.5232 GB, free: 39.65 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0005619/0.4417, allocations: 128.1 kB / 0.5233 GB, free: 39.62 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005587/0.4423, allocations: 401.6 kB / 0.5237 GB, free: 39.33 MB / 382.1 MB Notification: Performance of SimCode: time 1.082e-06/0.4423, allocations: 3.938 kB / 0.5237 GB, free: 39.32 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04587/0.4882, allocations: 21.27 MB / 0.5444 GB, free: 24.63 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.3/12.79, allocations: 7.922 kB / 0.5444 GB, free: 24.62 MB / 382.1 MB (rm -f PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704.pipe ; mkfifo PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704.pipe ; head -c 1048576 < PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704.pipe >> ../files/PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Trina_Analytical_20160704_fmu --startTime=0 --stopTime=86400 --timeout=50 --tolerance=1e-08 PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Trina_Analytical_20160704.fmu > PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160704.pipe 2>&1)