Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_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_Comax_Analytical_20160629,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160629",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160629,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_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 0.0709/0.0709, allocations: 5.396 MB / 21.03 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 0.01072/0.01072, allocations: 89.39 kB / 23.03 MB, free: 0.8242 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002019/0.002019, allocations: 186.8 kB / 25.14 MB, free: 196 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.412/1.412, 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 0.01319/0.01319, allocations: 2.32 MB / 303.7 MB, free: 6.492 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.00268/0.00268, allocations: 99.84 kB / 419.1 MB, free: 23.03 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.0862/0.0889, allocations: 51.21 MB / 470.3 MB, free: 3.773 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160629): time 0.009087/0.09804, allocations: 6.781 MB / 477.1 MB, free: 12.96 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.006192/0.1043, allocations: 3.131 MB / 480.3 MB, free: 9.816 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0009885/0.1054, allocations: 16 kB / 480.3 MB, free: 9.801 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002965/0.1083, allocations: 1.103 MB / 481.4 MB, free: 8.695 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.002328/0.1107, allocations: 0.8428 MB / 482.2 MB, free: 7.848 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001793/0.1125, allocations: 0.5351 MB / 482.8 MB, free: 7.32 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001957/0.1144, allocations: 1.39 MB / 484.1 MB, free: 5.926 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001696/0.1162, allocations: 1.024 MB / 485.2 MB, free: 4.871 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0008572/0.117, allocations: 0.5566 MB / 485.7 MB, free: 4.312 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.000999/0.118, allocations: 0.7198 MB / 486.4 MB, free: 3.59 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002218/0.1183, allocations: 140 kB / 486.6 MB, free: 3.453 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0009457/0.1192, allocations: 439.7 kB / 487 MB, free: 3.023 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.000285/0.1195, allocations: 295 kB / 487.3 MB, free: 2.734 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0006892/0.1202, allocations: 0.6337 MB / 487.9 MB, free: 2.098 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002404/0.1226, allocations: 1.751 MB / 489.7 MB, free: 348 kB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 6.231e-06/0.1227, allocations: 0 / 489.7 MB, free: 348 kB / 350.1 MB Notification: Performance of FrontEnd: time 1.863e-06/0.1227, allocations: 0 / 489.7 MB, free: 348 kB / 350.1 MB Notification: Performance of Transformations before backend: time 3.267e-05/0.1227, allocations: 0 / 489.7 MB, free: 348 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 0.004627/0.1273, allocations: 1.8 MB / 491.5 MB, free: 14.46 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.548e-05/0.1274, allocations: 8.031 kB / 491.5 MB, free: 14.46 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002103/0.1276, allocations: 160.9 kB / 491.7 MB, free: 14.29 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002202/0.1298, allocations: 383.9 kB / 492 MB, free: 13.91 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00192/0.1318, allocations: 0.7642 MB / 492.8 MB, free: 13.11 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.601e-05/0.1319, allocations: 82.06 kB / 492.9 MB, free: 13.02 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001784/0.1321, allocations: 108 kB / 493 MB, free: 12.92 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002308/0.1344, allocations: 1.176 MB / 494.2 MB, free: 11.68 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.166e-05/0.1344, allocations: 4 kB / 494.2 MB, free: 11.68 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001217/0.1345, allocations: 44 kB / 494.2 MB, free: 11.64 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.54e-05/0.1346, allocations: 31.88 kB / 494.2 MB, free: 11.61 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002321/0.1369, allocations: 1.038 MB / 495.3 MB, free: 10.57 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00677/0.1437, allocations: 4.377 MB / 499.6 MB, free: 5.988 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.003193/0.1469, allocations: 1.782 MB / 0.4897 GB, free: 4 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008218/0.1478, allocations: 359.4 kB / 0.49 GB, free: 3.641 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001771/0.1479, allocations: 166.8 kB / 0.4902 GB, free: 3.441 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001043/0.149, allocations: 0.5591 MB / 0.4907 GB, free: 2.84 MB / 366.1 MB Notification: Performance of pre-optimization done (n=79): time 4.629e-06/0.149, allocations: 7.984 kB / 0.4907 GB, free: 2.832 MB / 366.1 MB Notification: Performance of matching and sorting (n=79): time 0.006215/0.1552, allocations: 1.706 MB / 0.4924 GB, free: 1.082 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001775/0.1554, allocations: 273.7 kB / 0.4927 GB, free: 0.7539 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007901/0.1562, allocations: 0.5615 MB / 0.4932 GB, free: 188 kB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 6.413e-05/0.1563, allocations: 41.7 kB / 0.4932 GB, free: 140 kB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004351/0.1568, allocations: 0.4962 MB / 0.4937 GB, free: 15.63 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002525/0.157, allocations: 269.8 kB / 0.494 GB, free: 15.37 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003449/0.1574, allocations: 210.8 kB / 0.4942 GB, free: 15.15 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0002077/0.1576, allocations: 378.8 kB / 0.4945 GB, free: 14.77 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007955/0.1584, allocations: 330.4 kB / 0.4949 GB, free: 14.45 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001018/0.1594, allocations: 0.5682 MB / 0.4954 GB, free: 13.79 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 0.01807/0.1775, allocations: 3.619 MB / 0.499 GB, free: 10 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.225e-05/0.1775, allocations: 7.938 kB / 0.499 GB, free: 9.996 MB / 382.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.003002/0.1805, allocations: 1.202 MB / 0.5001 GB, free: 8.766 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 0.0001072/0.1807, allocations: 97.09 kB / 0.5002 GB, free: 8.652 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.983e-05/0.1807, allocations: 8 kB / 0.5002 GB, free: 8.645 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004857/0.1812, allocations: 89.02 kB / 0.5003 GB, free: 8.555 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001138/0.1824, allocations: 255.5 kB / 0.5006 GB, free: 8.305 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001757/0.1841, allocations: 1.585 MB / 0.5021 GB, free: 6.578 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00099/0.1851, allocations: 119.3 kB / 0.5022 GB, free: 6.461 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.689e-05/0.1853, allocations: 51.95 kB / 0.5023 GB, free: 6.41 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 0.0006566/0.1859, allocations: 377.4 kB / 0.5026 GB, free: 6.012 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001753/0.1861, allocations: 87.42 kB / 0.5027 GB, free: 5.926 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002777/0.1889, allocations: 1.245 MB / 0.5039 GB, free: 4.648 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.144e-05/0.1889, allocations: 8 kB / 0.5039 GB, free: 4.641 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.337e-06/0.1889, allocations: 7.938 kB / 0.5039 GB, free: 4.633 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.113e-05/0.1889, allocations: 3.984 kB / 0.504 GB, free: 4.629 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006696/0.1956, allocations: 2.547 MB / 0.5064 GB, free: 2 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.33e-06/0.1957, allocations: 0 / 0.5064 GB, free: 2 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006007/0.1963, allocations: 135.8 kB / 0.5066 GB, free: 1.867 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008358/0.1971, allocations: 330.2 kB / 0.5069 GB, free: 1.535 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.558e-05/0.1972, allocations: 39.97 kB / 0.5069 GB, free: 1.496 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00145/0.1987, allocations: 0.8819 MB / 0.5078 GB, free: 0.582 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.157e-06/0.1987, allocations: 4.031 kB / 0.5078 GB, free: 0.5781 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.1986/0.3973, allocations: 1.924 MB / 0.5097 GB, free: 46.44 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0003985/0.3977, allocations: 242.7 kB / 0.5099 GB, free: 46.34 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000142/0.3979, allocations: 33.56 kB / 0.5099 GB, free: 46.34 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006634/0.3986, allocations: 48.86 kB / 0.51 GB, free: 46.34 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001452/0.3987, allocations: 58.14 kB / 0.51 GB, free: 46.34 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.03e-05/0.3988, allocations: 41.61 kB / 0.5101 GB, free: 46.34 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0004984/0.3993, allocations: 394.8 kB / 0.5104 GB, free: 46.25 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.1e-07/0.3993, allocations: 0 / 0.5104 GB, free: 46.25 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.0009677/0.4003, allocations: 348.6 kB / 0.5108 GB, free: 46.25 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 0.006377/0.4067, allocations: 2.717 MB / 0.5134 GB, free: 45.3 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002112/0.4088, allocations: 1.156 MB / 0.5146 GB, free: 44.74 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 3.196e-06/0.4088, allocations: 2.25 kB / 0.5146 GB, free: 44.74 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0009792/0.4098, allocations: 0.6698 MB / 0.5152 GB, free: 44.37 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007974/0.4106, allocations: 149 kB / 0.5154 GB, free: 44.32 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01101/0.4216, allocations: 7.141 MB / 0.5223 GB, free: 40.35 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004781/0.4221, allocations: 1.012 MB / 0.5233 GB, free: 39.64 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0005342/0.4227, allocations: 132.8 kB / 0.5234 GB, free: 39.61 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004733/0.4232, allocations: 401.2 kB / 0.5238 GB, free: 39.31 MB / 382.1 MB Notification: Performance of SimCode: time 8.42e-07/0.4232, allocations: 0 / 0.5238 GB, free: 39.31 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.06329/0.4865, allocations: 20.87 MB / 0.5442 GB, free: 24.94 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.85/13.34, allocations: 6.812 kB / 0.5442 GB, free: 24.93 MB / 382.1 MB (rm -f PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160629.pipe ; mkfifo PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160629.pipe ; head -c 1048576 < PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160629.pipe >> ../files/PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160629.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160629_fmu --startTime=0 --stopTime=86400 --timeout=50 --tolerance=1e-08 PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160629.fmu > PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160629.pipe 2>&1)