Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160629.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_20160629,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Trina_Analytical_20160629",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PhotoVoltaics_TGM.TGM_Trina_Analytical_20160629,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Trina_Analytical_20160629",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 0.04263/0.04263, allocations: 5.388 MB / 21.02 MB, free: 1.621 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.01122/0.01122, allocations: 92.45 kB / 23.02 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 0.001622/0.001622, allocations: 197 kB / 25.15 MB, free: 192 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.294/1.294, allocations: 222.9 MB / 250 MB, free: 8.422 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/package.mo): time 0.009397/0.009397, allocations: 2.328 MB / 303.7 MB, free: 6.469 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001762/0.001762, allocations: 87.86 kB / 419.1 MB, free: 23.01 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.08395/0.08573, allocations: 51.22 MB / 470.4 MB, free: 3.75 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Trina_Analytical_20160629): time 0.007661/0.09342, allocations: 6.764 MB / 477.1 MB, free: 12.95 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.004858/0.09832, allocations: 3.134 MB / 480.2 MB, free: 9.809 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007329/0.09908, allocations: 16 kB / 480.3 MB, free: 9.793 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.00233/0.1014, allocations: 1.103 MB / 481.4 MB, free: 8.688 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001767/0.1032, allocations: 0.8506 MB / 482.2 MB, free: 7.832 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001339/0.1045, allocations: 0.5347 MB / 482.8 MB, free: 7.305 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001443/0.106, allocations: 1.379 MB / 484.1 MB, free: 5.922 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001367/0.1074, allocations: 1.041 MB / 485.2 MB, free: 4.852 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0006491/0.108, allocations: 0.5605 MB / 485.7 MB, free: 4.289 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.000839/0.1089, allocations: 0.7159 MB / 486.4 MB, free: 3.57 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.000167/0.1091, allocations: 140 kB / 486.6 MB, free: 3.434 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0008412/0.1099, allocations: 427.7 kB / 487 MB, free: 3.016 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002804/0.1102, allocations: 291 kB / 487.3 MB, free: 2.73 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0005926/0.1108, allocations: 0.6337 MB / 487.9 MB, free: 2.094 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.001865/0.1127, allocations: 1.756 MB / 489.7 MB, free: 340 kB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.298e-06/0.1127, allocations: 4 kB / 489.7 MB, free: 336 kB / 350.1 MB Notification: Performance of FrontEnd: time 1.513e-06/0.1127, allocations: 0 / 489.7 MB, free: 336 kB / 350.1 MB Notification: Performance of Transformations before backend: time 1.507e-05/0.1127, 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 0.004074/0.1168, allocations: 1.767 MB / 491.4 MB, free: 14.49 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.424e-05/0.1168, allocations: 8.031 kB / 491.5 MB, free: 14.48 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001897/0.117, allocations: 160.9 kB / 491.6 MB, free: 14.31 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002054/0.1191, allocations: 375.2 kB / 492 MB, free: 13.95 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001695/0.1208, allocations: 0.7559 MB / 492.7 MB, free: 13.14 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.595e-05/0.1209, allocations: 82.05 kB / 492.8 MB, free: 13.06 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000166/0.1211, allocations: 104 kB / 492.9 MB, free: 12.96 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002015/0.1231, allocations: 1.187 MB / 494.1 MB, free: 11.71 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.515e-05/0.1231, allocations: 0 / 494.1 MB, free: 11.71 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001001/0.1232, allocations: 44 kB / 494.1 MB, free: 11.67 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.631e-05/0.1233, allocations: 35.88 kB / 494.2 MB, free: 11.64 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00204/0.1253, allocations: 1.034 MB / 495.2 MB, free: 10.61 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005976/0.1313, allocations: 4.361 MB / 499.6 MB, free: 6.039 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.00269/0.134, allocations: 1.78 MB / 0.4896 GB, free: 4.051 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007316/0.1348, allocations: 359.4 kB / 0.4899 GB, free: 3.691 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001486/0.1349, allocations: 178.8 kB / 0.4901 GB, free: 3.48 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0009223/0.1359, allocations: 0.5513 MB / 0.4907 GB, free: 2.887 MB / 366.1 MB Notification: Performance of pre-optimization done (n=79): time 2.204e-06/0.1359, allocations: 0 / 0.4907 GB, free: 2.887 MB / 366.1 MB Notification: Performance of matching and sorting (n=79): time 0.006197/0.1421, allocations: 1.702 MB / 0.4923 GB, free: 1.141 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001292/0.1422, allocations: 281.7 kB / 0.4926 GB, free: 0.8047 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007902/0.143, allocations: 0.5614 MB / 0.4931 GB, free: 240 kB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 6.184e-05/0.1431, allocations: 41.7 kB / 0.4932 GB, free: 192 kB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0003461/0.1434, allocations: 498.7 kB / 0.4937 GB, free: 15.69 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002061/0.1437, allocations: 248.5 kB / 0.4939 GB, free: 15.44 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003037/0.144, allocations: 214.7 kB / 0.4941 GB, free: 15.22 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0001522/0.1441, allocations: 378.8 kB / 0.4945 GB, free: 14.84 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007398/0.1449, allocations: 330.4 kB / 0.4948 GB, free: 14.52 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009393/0.1458, allocations: 0.5643 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 0.01787/0.1637, allocations: 3.627 MB / 0.4989 GB, free: 10.07 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.206e-05/0.1637, allocations: 7.938 kB / 0.4989 GB, free: 10.06 MB / 382.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.002595/0.1663, allocations: 1.198 MB / 0.5 GB, free: 8.836 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 7.469e-05/0.1664, allocations: 101.3 kB / 0.5001 GB, free: 8.719 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.71e-05/0.1665, allocations: 8 kB / 0.5001 GB, free: 8.711 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004744/0.1669, allocations: 80.78 kB / 0.5002 GB, free: 8.629 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001107/0.1681, allocations: 259.5 kB / 0.5005 GB, free: 8.375 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001527/0.1696, allocations: 1.578 MB / 0.502 GB, free: 6.656 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009716/0.1706, allocations: 118.9 kB / 0.5021 GB, free: 6.539 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.751e-05/0.1707, allocations: 56.05 kB / 0.5022 GB, free: 6.484 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 0.0005948/0.1713, allocations: 373.2 kB / 0.5025 GB, free: 6.09 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002021/0.1715, allocations: 83 kB / 0.5026 GB, free: 6.008 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002905/0.1744, allocations: 1.249 MB / 0.5038 GB, free: 4.727 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.706e-06/0.1744, allocations: 11.94 kB / 0.5038 GB, free: 4.715 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.541e-06/0.1745, allocations: 4 kB / 0.5038 GB, free: 4.711 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.064e-05/0.1745, allocations: 3.984 kB / 0.5039 GB, free: 4.707 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006719/0.1812, allocations: 2.543 MB / 0.5063 GB, free: 2.082 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.976e-06/0.1812, allocations: 0 / 0.5063 GB, free: 2.082 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000735/0.182, allocations: 135.8 kB / 0.5065 GB, free: 1.949 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008546/0.1829, allocations: 330.2 kB / 0.5068 GB, free: 1.617 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.94e-05/0.183, allocations: 31.97 kB / 0.5068 GB, free: 1.586 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001378/0.1844, allocations: 0.8935 MB / 0.5077 GB, free: 0.6602 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.759e-06/0.1844, allocations: 4.031 kB / 0.5077 GB, free: 0.6562 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2039/0.3883, allocations: 1.914 MB / 0.5096 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.000449/0.3888, allocations: 241.6 kB / 0.5098 GB, free: 46.3 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001572/0.3889, allocations: 30.88 kB / 0.5098 GB, free: 46.3 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006643/0.3896, allocations: 49.89 kB / 0.5099 GB, free: 46.3 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001636/0.3898, allocations: 58.34 kB / 0.5099 GB, free: 46.3 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.378e-05/0.3899, allocations: 44.52 kB / 0.51 GB, free: 46.3 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0005168/0.3904, allocations: 390.7 kB / 0.5103 GB, free: 46.21 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.61e-07/0.3904, allocations: 0 / 0.5103 GB, free: 46.21 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.001042/0.3914, allocations: 343.7 kB / 0.5107 GB, free: 46.21 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 0.006551/0.398, allocations: 2.713 MB / 0.5133 GB, free: 45.31 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002209/0.4002, allocations: 1.155 MB / 0.5144 GB, free: 44.75 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 3.296e-06/0.4003, allocations: 4.172 kB / 0.5144 GB, free: 44.75 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0009878/0.4012, allocations: 0.6638 MB / 0.5151 GB, free: 44.38 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000892/0.4021, allocations: 140.3 kB / 0.5152 GB, free: 44.33 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01167/0.4138, allocations: 7.109 MB / 0.5222 GB, free: 40.41 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006037/0.4145, allocations: 1.014 MB / 0.5232 GB, free: 39.69 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0005174/0.415, allocations: 131.3 kB / 0.5233 GB, free: 39.66 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005271/0.4155, allocations: 404.8 kB / 0.5237 GB, free: 39.36 MB / 382.1 MB Notification: Performance of SimCode: time 6.11e-07/0.4156, allocations: 0 / 0.5237 GB, free: 39.36 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04314/0.4587, allocations: 21.27 MB / 0.5444 GB, free: 24.67 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.38/12.84, allocations: 0 / 0.5444 GB, free: 24.67 MB / 382.1 MB (rm -f PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160629.pipe ; mkfifo PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160629.pipe ; head -c 1048576 < PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160629.pipe >> ../files/PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160629.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Trina_Analytical_20160629_fmu --startTime=0 --stopTime=86400 --timeout=50 --tolerance=1e-08 PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Trina_Analytical_20160629.fmu > PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160629.pipe 2>&1)