Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_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_Comax_Analytical_20160704,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160704",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_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 0.03579/0.03579, allocations: 5.4 MB / 21.03 MB, free: 1.5 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001242/0.001242, allocations: 105.8 kB / 23.03 MB, free: 0.8086 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001331/0.001332, allocations: 198.5 kB / 25.15 MB, free: 116 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.413/1.413, allocations: 222.9 MB / 250 MB, free: 8.414 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/package.mo): time 0.01/0.01, allocations: 2.324 MB / 303.7 MB, free: 6.441 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002649/0.00265, allocations: 103.8 kB / 419.2 MB, free: 22.97 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.0959/0.09856, allocations: 51.2 MB / 470.4 MB, free: 3.719 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704): time 0.00886/0.1075, allocations: 6.781 MB / 477.1 MB, free: 12.9 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.005829/0.1133, allocations: 3.134 MB / 480.3 MB, free: 9.758 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0009232/0.1143, allocations: 20 kB / 480.3 MB, free: 9.738 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002931/0.1173, allocations: 1.1 MB / 481.4 MB, free: 8.637 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.002478/0.1198, allocations: 0.8429 MB / 482.2 MB, free: 7.789 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001801/0.1216, allocations: 0.5286 MB / 482.8 MB, free: 7.266 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.002199/0.1238, allocations: 1.386 MB / 484.1 MB, free: 5.875 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001767/0.1256, allocations: 1.028 MB / 485.2 MB, free: 4.816 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0009179/0.1265, allocations: 0.5566 MB / 485.7 MB, free: 4.258 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001047/0.1276, allocations: 0.7159 MB / 486.4 MB, free: 3.539 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002036/0.1278, allocations: 144 kB / 486.6 MB, free: 3.398 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001156/0.1289, allocations: 439.7 kB / 487 MB, free: 2.969 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002727/0.1292, allocations: 287 kB / 487.3 MB, free: 2.688 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0007704/0.13, allocations: 0.6337 MB / 487.9 MB, free: 2.051 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002603/0.1326, allocations: 1.751 MB / 489.7 MB, free: 300 kB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.31e-06/0.1326, allocations: 0 / 489.7 MB, free: 300 kB / 350.1 MB Notification: Performance of FrontEnd: time 1.463e-06/0.1327, allocations: 0 / 489.7 MB, free: 300 kB / 350.1 MB Notification: Performance of Transformations before backend: time 2.007e-05/0.1327, allocations: 0 / 489.7 MB, free: 300 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 0.004651/0.1373, allocations: 1.8 MB / 491.5 MB, free: 14.41 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.248e-05/0.1374, allocations: 12.03 kB / 491.5 MB, free: 14.4 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002051/0.1376, allocations: 164.9 kB / 491.7 MB, free: 14.23 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002154/0.1398, allocations: 379.8 kB / 492 MB, free: 13.86 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00189/0.1417, allocations: 0.7643 MB / 492.8 MB, free: 13.05 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.878e-05/0.1418, allocations: 78.06 kB / 492.9 MB, free: 12.97 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001721/0.1419, allocations: 108 kB / 493 MB, free: 12.87 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00233/0.1443, allocations: 1.179 MB / 494.1 MB, free: 11.63 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.331e-05/0.1443, allocations: 11.92 kB / 494.2 MB, free: 11.62 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001126/0.1445, allocations: 48 kB / 494.2 MB, free: 11.57 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.552e-05/0.1445, allocations: 24 kB / 494.2 MB, free: 11.55 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002311/0.1468, allocations: 1.038 MB / 495.3 MB, free: 10.51 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.006742/0.1536, allocations: 4.377 MB / 499.6 MB, free: 5.934 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.003138/0.1567, allocations: 1.77 MB / 0.4897 GB, free: 3.957 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008259/0.1576, allocations: 359.4 kB / 0.49 GB, free: 3.598 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001992/0.1578, allocations: 178.8 kB / 0.4902 GB, free: 3.387 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001046/0.1588, allocations: 0.5513 MB / 0.4907 GB, free: 2.793 MB / 366.1 MB Notification: Performance of pre-optimization done (n=79): time 2.665e-06/0.1588, allocations: 0 / 0.4907 GB, free: 2.793 MB / 366.1 MB Notification: Performance of matching and sorting (n=79): time 0.006256/0.1651, allocations: 1.71 MB / 0.4924 GB, free: 1.039 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001876/0.1653, allocations: 277.7 kB / 0.4927 GB, free: 0.707 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007888/0.1661, allocations: 0.5614 MB / 0.4932 GB, free: 140 kB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 6.381e-05/0.1662, allocations: 45.69 kB / 0.4932 GB, free: 88 kB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004443/0.1666, allocations: 0.4962 MB / 0.4937 GB, free: 15.58 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002544/0.1669, allocations: 265.8 kB / 0.494 GB, free: 15.32 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000347/0.1673, allocations: 210.8 kB / 0.4942 GB, free: 15.11 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0002143/0.1675, allocations: 382.8 kB / 0.4945 GB, free: 14.72 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007955/0.1683, allocations: 330.4 kB / 0.4949 GB, free: 14.4 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001008/0.1693, allocations: 0.5682 MB / 0.4954 GB, free: 13.74 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 0.01785/0.1872, allocations: 3.623 MB / 0.499 GB, free: 9.949 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.271e-05/0.1872, allocations: 7.938 kB / 0.499 GB, free: 9.941 MB / 382.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.002784/0.19, allocations: 1.206 MB / 0.5001 GB, free: 8.707 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 8.497e-05/0.1901, allocations: 91.3 kB / 0.5002 GB, free: 8.602 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.416e-05/0.1901, allocations: 8 kB / 0.5002 GB, free: 8.594 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004545/0.1906, allocations: 89.03 kB / 0.5003 GB, free: 8.504 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001116/0.1917, allocations: 251.5 kB / 0.5006 GB, free: 8.258 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001759/0.1935, allocations: 1.593 MB / 0.5021 GB, free: 6.523 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009366/0.1944, allocations: 115.3 kB / 0.5022 GB, free: 6.41 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.184e-05/0.1945, allocations: 51.97 kB / 0.5023 GB, free: 6.359 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 0.0005981/0.1951, allocations: 377.3 kB / 0.5026 GB, free: 5.961 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001776/0.1953, allocations: 87.42 kB / 0.5027 GB, free: 5.875 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00277/0.1981, allocations: 1.253 MB / 0.5039 GB, free: 4.59 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.939e-06/0.1981, allocations: 8 kB / 0.5039 GB, free: 4.582 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.795e-06/0.1981, allocations: 0 / 0.5039 GB, free: 4.582 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.116e-05/0.1981, allocations: 3.984 kB / 0.504 GB, free: 4.578 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006702/0.2048, allocations: 2.555 MB / 0.5064 GB, free: 1.941 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.023e-06/0.2049, allocations: 0 / 0.5064 GB, free: 1.941 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006592/0.2055, allocations: 135.8 kB / 0.5066 GB, free: 1.809 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008714/0.2064, allocations: 322.3 kB / 0.5069 GB, free: 1.484 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000107/0.2065, allocations: 39.97 kB / 0.5069 GB, free: 1.445 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0015/0.208, allocations: 0.8819 MB / 0.5078 GB, free: 0.5312 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.445e-06/0.2081, allocations: 4 kB / 0.5078 GB, free: 0.5273 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.203/0.4111, allocations: 1.926 MB / 0.5097 GB, free: 46.48 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0003928/0.4115, allocations: 244 kB / 0.5099 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001432/0.4117, allocations: 33.84 kB / 0.5099 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006383/0.4123, allocations: 49.25 kB / 0.51 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001421/0.4125, allocations: 62.38 kB / 0.51 GB, free: 46.39 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.376e-05/0.4126, allocations: 38.69 kB / 0.5101 GB, free: 46.39 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0005247/0.4131, allocations: 390.3 kB / 0.5104 GB, free: 46.3 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.2e-07/0.4131, allocations: 1.031 kB / 0.5105 GB, free: 46.3 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.001005/0.4141, allocations: 343 kB / 0.5108 GB, free: 46.3 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 0.006558/0.4207, allocations: 2.724 MB / 0.5134 GB, free: 45.33 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002271/0.423, allocations: 1.156 MB / 0.5146 GB, free: 44.77 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 4.638e-06/0.423, allocations: 1.812 kB / 0.5146 GB, free: 44.77 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001085/0.4241, allocations: 0.6709 MB / 0.5152 GB, free: 44.4 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009148/0.425, allocations: 143 kB / 0.5154 GB, free: 44.35 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0129/0.438, allocations: 7.136 MB / 0.5223 GB, free: 40.39 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006653/0.4387, allocations: 1.014 MB / 0.5233 GB, free: 39.67 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0006231/0.4393, allocations: 127.2 kB / 0.5234 GB, free: 39.64 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005688/0.4399, allocations: 404.3 kB / 0.5238 GB, free: 39.35 MB / 382.1 MB Notification: Performance of SimCode: time 1.823e-06/0.4399, allocations: 1.5 kB / 0.5238 GB, free: 39.35 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04565/0.4855, allocations: 20.87 MB / 0.5442 GB, free: 24.89 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.97/13.46, allocations: 15.98 kB / 0.5442 GB, free: 24.88 MB / 382.1 MB (rm -f PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe ; mkfifo PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe ; head -c 1048576 < PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe >> ../files/PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.sim & python3 -m fmpy simulate --output-file PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704_res.csv --start-time 0 --stop-time 86400 --timeout 50 --relative-tolerance 1e-08 --interface-type ModelExchange --solver CVode --output-interval 60 PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160704.fmu > PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe 2>&1)