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 0.03224/0.03224, 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 0.007275/0.007275, allocations: 89.39 kB / 23.03 MB, free: 0.8164 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001346/0.001346, 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 1.386/1.386, allocations: 222.9 MB / 250 MB, free: 8.375 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/package.mo): time 0.01034/0.01034, allocations: 2.327 MB / 303.7 MB, free: 6.465 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002905/0.002905, allocations: 99.84 kB / 419.1 MB, free: 23.01 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.08588/0.0888, allocations: 51.2 MB / 470.3 MB, free: 3.762 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704): time 0.008725/0.09756, allocations: 6.781 MB / 477.1 MB, free: 12.95 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.005639/0.1032, allocations: 3.131 MB / 480.3 MB, free: 9.805 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.000622/0.1039, allocations: 19.94 kB / 480.3 MB, free: 9.785 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002646/0.1066, allocations: 1.095 MB / 481.4 MB, free: 8.688 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001947/0.1085, allocations: 0.8545 MB / 482.2 MB, free: 7.828 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001514/0.11, allocations: 0.5312 MB / 482.8 MB, free: 7.305 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001599/0.1116, allocations: 1.386 MB / 484.1 MB, free: 5.914 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001509/0.1132, allocations: 1.028 MB / 485.2 MB, free: 4.855 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0007034/0.1139, allocations: 0.5566 MB / 485.7 MB, free: 4.297 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0009177/0.1148, allocations: 0.7198 MB / 486.4 MB, free: 3.574 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001905/0.115, allocations: 144 kB / 486.6 MB, free: 3.434 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0008226/0.1158, allocations: 431.7 kB / 487 MB, free: 3.012 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002597/0.1161, allocations: 287 kB / 487.3 MB, free: 2.73 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0006397/0.1168, allocations: 0.6337 MB / 487.9 MB, free: 2.094 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002073/0.1188, allocations: 1.763 MB / 489.7 MB, free: 332 kB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.496e-06/0.1189, allocations: 0 / 489.7 MB, free: 332 kB / 350.1 MB Notification: Performance of FrontEnd: time 1.583e-06/0.1189, allocations: 0 / 489.7 MB, free: 332 kB / 350.1 MB Notification: Performance of Transformations before backend: time 1.292e-05/0.1189, allocations: 0 / 489.7 MB, free: 332 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 0.004381/0.1233, allocations: 1.8 MB / 491.5 MB, free: 14.45 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.045e-05/0.1233, allocations: 8.031 kB / 491.5 MB, free: 14.44 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002055/0.1235, allocations: 160.9 kB / 491.7 MB, free: 14.27 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002186/0.1257, allocations: 379.9 kB / 492 MB, free: 13.9 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001706/0.1274, allocations: 0.7681 MB / 492.8 MB, free: 13.09 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.898e-05/0.1275, allocations: 86.05 kB / 492.9 MB, free: 13 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001741/0.1277, allocations: 104 kB / 493 MB, free: 12.9 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002222/0.1299, allocations: 1.176 MB / 494.2 MB, free: 11.66 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.03e-05/0.13, allocations: 4 kB / 494.2 MB, free: 11.66 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001065/0.1301, allocations: 44 kB / 494.2 MB, free: 11.62 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.657e-05/0.1301, allocations: 31.92 kB / 494.2 MB, free: 11.59 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002326/0.1325, allocations: 1.042 MB / 495.3 MB, free: 10.55 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00658/0.1391, allocations: 4.377 MB / 499.7 MB, free: 5.969 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.003234/0.1423, allocations: 1.778 MB / 0.4897 GB, free: 3.984 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008373/0.1432, allocations: 359.4 kB / 0.49 GB, free: 3.625 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001929/0.1434, allocations: 174.8 kB / 0.4902 GB, free: 3.418 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001087/0.1445, allocations: 0.5475 MB / 0.4907 GB, free: 2.828 MB / 366.1 MB Notification: Performance of pre-optimization done (n=79): time 2.414e-06/0.1445, allocations: 0 / 0.4907 GB, free: 2.828 MB / 366.1 MB Notification: Performance of matching and sorting (n=79): time 0.006318/0.1508, allocations: 1.71 MB / 0.4924 GB, free: 1.074 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001726/0.151, allocations: 281.7 kB / 0.4927 GB, free: 0.7383 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007615/0.1518, allocations: 0.5576 MB / 0.4932 GB, free: 176 kB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 6.132e-05/0.1518, allocations: 41.7 kB / 0.4932 GB, free: 128 kB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004327/0.1523, allocations: 0.5 MB / 0.4937 GB, free: 15.62 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002643/0.1525, allocations: 269.8 kB / 0.494 GB, free: 15.35 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003415/0.1529, allocations: 210.8 kB / 0.4942 GB, free: 15.14 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0002008/0.1531, allocations: 382.8 kB / 0.4946 GB, free: 14.75 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007964/0.1539, allocations: 322.4 kB / 0.4949 GB, free: 14.44 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001024/0.1549, allocations: 0.5682 MB / 0.4954 GB, free: 13.78 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 0.0181/0.1731, allocations: 3.623 MB / 0.499 GB, free: 9.988 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.121e-05/0.1731, allocations: 11.94 kB / 0.499 GB, free: 9.977 MB / 382.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.002749/0.1758, allocations: 1.202 MB / 0.5001 GB, free: 8.746 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 7.835e-05/0.1759, allocations: 89.09 kB / 0.5002 GB, free: 8.641 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.577e-05/0.176, allocations: 8 kB / 0.5002 GB, free: 8.633 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004638/0.1764, allocations: 92.97 kB / 0.5003 GB, free: 8.539 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00111/0.1776, allocations: 251.6 kB / 0.5006 GB, free: 8.293 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001812/0.1794, allocations: 1.589 MB / 0.5021 GB, free: 6.562 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008763/0.1803, allocations: 115.3 kB / 0.5022 GB, free: 6.449 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001068/0.1804, allocations: 51.95 kB / 0.5023 GB, free: 6.398 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 0.000601/0.181, allocations: 377.4 kB / 0.5026 GB, free: 6 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001674/0.1812, allocations: 87.42 kB / 0.5027 GB, free: 5.914 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002762/0.1839, allocations: 1.249 MB / 0.5039 GB, free: 4.633 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.896e-06/0.184, allocations: 8 kB / 0.5039 GB, free: 4.625 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.375e-06/0.184, allocations: 4 kB / 0.5039 GB, free: 4.621 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.167e-05/0.184, allocations: 3.984 kB / 0.504 GB, free: 4.617 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006657/0.1906, allocations: 2.547 MB / 0.5064 GB, free: 1.988 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.017e-06/0.1907, allocations: 4.031 kB / 0.5064 GB, free: 1.984 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005811/0.1912, allocations: 135.8 kB / 0.5066 GB, free: 1.852 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008276/0.1921, allocations: 334.2 kB / 0.5069 GB, free: 1.516 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.939e-05/0.1922, allocations: 35.97 kB / 0.5069 GB, free: 1.48 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001394/0.1936, allocations: 0.8858 MB / 0.5078 GB, free: 0.5625 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.258e-06/0.1936, allocations: 4.031 kB / 0.5078 GB, free: 0.5586 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.1844/0.378, allocations: 1.918 MB / 0.5097 GB, free: 46.45 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0006171/0.3787, allocations: 242.7 kB / 0.5099 GB, free: 46.35 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002121/0.3789, allocations: 37.22 kB / 0.5099 GB, free: 46.35 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001013/0.3799, allocations: 48.58 kB / 0.51 GB, free: 46.35 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002002/0.3801, allocations: 59.7 kB / 0.51 GB, free: 46.35 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001175/0.3802, allocations: 38.3 kB / 0.5101 GB, free: 46.35 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0007747/0.381, allocations: 389.5 kB / 0.5104 GB, free: 46.26 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.9e-07/0.381, allocations: 3.406 kB / 0.5104 GB, free: 46.26 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.001633/0.3827, allocations: 348.6 kB / 0.5108 GB, free: 46.26 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 0.009856/0.3926, allocations: 2.716 MB / 0.5134 GB, free: 45.3 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.003303/0.3959, allocations: 1.16 MB / 0.5146 GB, free: 44.74 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 5.421e-06/0.3959, allocations: 2.344 kB / 0.5146 GB, free: 44.74 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001581/0.3975, allocations: 0.6663 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 0.001412/0.399, allocations: 148 kB / 0.5154 GB, free: 44.32 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01592/0.4149, allocations: 7.14 MB / 0.5223 GB, free: 40.36 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005197/0.4154, allocations: 1.014 MB / 0.5233 GB, free: 39.64 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0005234/0.416, allocations: 128.1 kB / 0.5234 GB, free: 39.61 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004954/0.4165, allocations: 401.2 kB / 0.5238 GB, free: 39.32 MB / 382.1 MB Notification: Performance of SimCode: time 4.81e-07/0.4165, allocations: 5.062 kB / 0.5238 GB, free: 39.31 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04647/0.463, allocations: 20.86 MB / 0.5442 GB, free: 24.95 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.72/13.18, allocations: 10.88 kB / 0.5442 GB, free: 24.94 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 & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160704_fmu --startTime=0 --stopTime=86400 --timeout=50 --tolerance=1e-08 PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160704.fmu > PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160704.pipe 2>&1)