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 0.04852/0.04852, allocations: 5.394 MB / 21.03 MB, free: 1.582 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009848/0.0009848, allocations: 99.12 kB / 23.02 MB, free: 0.793 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001153/0.001153, allocations: 206.6 kB / 25.15 MB, free: 152 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.269/1.269, allocations: 222.9 MB / 250 MB, free: 8.41 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/package.mo): time 0.01285/0.01285, allocations: 2.328 MB / 303.7 MB, free: 6.477 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001657/0.001657, allocations: 95.86 kB / 419.1 MB, free: 23.02 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1074/0.1091, allocations: 51.21 MB / 470.3 MB, free: 3.762 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160629): time 0.008221/0.1173, allocations: 6.774 MB / 477.1 MB, free: 12.96 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.004952/0.1223, allocations: 3.123 MB / 480.2 MB, free: 9.824 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004706/0.1228, allocations: 19.94 kB / 480.3 MB, free: 9.805 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002347/0.1252, allocations: 1.107 MB / 481.4 MB, free: 8.695 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001685/0.1269, allocations: 0.8468 MB / 482.2 MB, free: 7.844 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001979/0.1288, allocations: 0.5263 MB / 482.7 MB, free: 7.316 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001341/0.1302, allocations: 1.386 MB / 484.1 MB, free: 5.93 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001295/0.1315, allocations: 1.03 MB / 485.2 MB, free: 4.871 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0005896/0.1321, allocations: 0.5605 MB / 485.7 MB, free: 4.309 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.000797/0.1329, allocations: 0.7121 MB / 486.4 MB, free: 3.594 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.000157/0.1331, allocations: 151.9 kB / 486.6 MB, free: 3.445 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.000674/0.1338, allocations: 431.7 kB / 487 MB, free: 3.023 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002159/0.134, allocations: 295 kB / 487.3 MB, free: 2.734 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0005213/0.1345, allocations: 0.6298 MB / 487.9 MB, free: 2.102 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.001597/0.1361, allocations: 1.752 MB / 489.7 MB, free: 352 kB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.629e-06/0.1361, allocations: 0 / 489.7 MB, free: 352 kB / 350.1 MB Notification: Performance of FrontEnd: time 1.292e-06/0.1361, allocations: 0 / 489.7 MB, free: 352 kB / 350.1 MB Notification: Performance of Transformations before backend: time 1.645e-05/0.1362, allocations: 0 / 489.7 MB, free: 352 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 0.003905/0.1401, allocations: 1.775 MB / 491.4 MB, free: 14.5 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.738e-05/0.1401, allocations: 12.03 kB / 491.5 MB, free: 14.48 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001775/0.1403, allocations: 160.9 kB / 491.6 MB, free: 14.32 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001975/0.1423, allocations: 367.2 kB / 492 MB, free: 13.96 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001506/0.1438, allocations: 0.7637 MB / 492.7 MB, free: 13.15 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.127e-05/0.1439, allocations: 78.06 kB / 492.8 MB, free: 13.07 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001509/0.144, allocations: 108 kB / 492.9 MB, free: 12.96 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001978/0.146, allocations: 1.183 MB / 494.1 MB, free: 11.72 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.675e-05/0.146, allocations: 0 / 494.1 MB, free: 11.72 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.489e-05/0.1461, allocations: 44 kB / 494.1 MB, free: 11.68 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.992e-05/0.1462, allocations: 24 kB / 494.2 MB, free: 11.66 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002029/0.1482, allocations: 1.038 MB / 495.2 MB, free: 10.62 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005833/0.1541, allocations: 4.365 MB / 499.6 MB, free: 6.051 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.002757/0.1568, allocations: 1.772 MB / 0.4896 GB, free: 4.07 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007373/0.1576, allocations: 363.4 kB / 0.4899 GB, free: 3.707 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001521/0.1577, allocations: 170.8 kB / 0.4901 GB, free: 3.504 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0009187/0.1587, allocations: 0.5553 MB / 0.4906 GB, free: 2.906 MB / 366.1 MB Notification: Performance of pre-optimization done (n=79): time 2.114e-06/0.1587, allocations: 3.938 kB / 0.4907 GB, free: 2.902 MB / 366.1 MB Notification: Performance of matching and sorting (n=79): time 0.005669/0.1644, allocations: 1.702 MB / 0.4923 GB, free: 1.156 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001379/0.1645, allocations: 285.6 kB / 0.4926 GB, free: 0.8164 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006478/0.1652, allocations: 0.5575 MB / 0.4931 GB, free: 256 kB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 5.848e-05/0.1652, allocations: 41.7 kB / 0.4932 GB, free: 208 kB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.000333/0.1656, allocations: 494.6 kB / 0.4936 GB, free: 15.71 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001946/0.1658, allocations: 252.5 kB / 0.4939 GB, free: 15.46 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002962/0.1661, allocations: 214.7 kB / 0.4941 GB, free: 15.24 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0001598/0.1662, allocations: 378.8 kB / 0.4944 GB, free: 14.86 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007149/0.167, allocations: 330.4 kB / 0.4948 GB, free: 14.54 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008869/0.1679, allocations: 0.5682 MB / 0.4953 GB, free: 13.88 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 0.01633/0.1842, allocations: 3.623 MB / 0.4989 GB, free: 10.09 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.735e-06/0.1842, allocations: 3.938 kB / 0.4989 GB, free: 10.09 MB / 382.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.00251/0.1867, allocations: 1.205 MB / 0.5 GB, free: 8.852 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 7.803e-05/0.1868, allocations: 95.44 kB / 0.5001 GB, free: 8.742 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.47e-05/0.1868, allocations: 8 kB / 0.5001 GB, free: 8.734 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004388/0.1873, allocations: 89.03 kB / 0.5002 GB, free: 8.645 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001049/0.1884, allocations: 255.5 kB / 0.5005 GB, free: 8.395 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001578/0.1899, allocations: 1.593 MB / 0.502 GB, free: 6.66 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008436/0.1908, allocations: 111 kB / 0.5021 GB, free: 6.551 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001015/0.1909, allocations: 55.95 kB / 0.5022 GB, free: 6.496 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 0.0005354/0.1915, allocations: 373.3 kB / 0.5025 GB, free: 6.102 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001664/0.1916, allocations: 83 kB / 0.5026 GB, free: 6.02 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002599/0.1942, allocations: 1.249 MB / 0.5038 GB, free: 4.738 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.185e-06/0.1943, allocations: 8 kB / 0.5038 GB, free: 4.73 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.787e-06/0.1943, allocations: 0 / 0.5038 GB, free: 4.73 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.089e-05/0.1943, allocations: 3.984 kB / 0.5038 GB, free: 4.727 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006345/0.2006, allocations: 2.543 MB / 0.5063 GB, free: 2.102 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.278e-06/0.2007, allocations: 4.031 kB / 0.5063 GB, free: 2.098 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005666/0.2012, allocations: 131.8 kB / 0.5065 GB, free: 1.969 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0007637/0.202, allocations: 326.3 kB / 0.5068 GB, free: 1.641 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.131e-05/0.2021, allocations: 35.97 kB / 0.5068 GB, free: 1.605 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001267/0.2034, allocations: 0.8936 MB / 0.5077 GB, free: 0.6797 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.913e-06/0.2034, allocations: 0 / 0.5077 GB, free: 0.6797 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2464/0.4498, allocations: 1.917 MB / 0.5095 GB, free: 46.46 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004153/0.4503, allocations: 246 kB / 0.5098 GB, free: 46.37 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000123/0.4504, allocations: 25.77 kB / 0.5098 GB, free: 46.37 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006213/0.451, allocations: 53.53 kB / 0.5099 GB, free: 46.37 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001562/0.4512, allocations: 58.23 kB / 0.5099 GB, free: 46.37 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.817e-05/0.4513, allocations: 41.45 kB / 0.51 GB, free: 46.37 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0005396/0.4518, allocations: 391.9 kB / 0.5103 GB, free: 46.28 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.3e-07/0.4518, allocations: 0 / 0.5103 GB, free: 46.28 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.00131/0.4532, allocations: 346 kB / 0.5107 GB, free: 46.28 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 0.006301/0.4595, allocations: 2.72 MB / 0.5133 GB, free: 45.36 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002148/0.4616, allocations: 1.154 MB / 0.5144 GB, free: 44.81 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 2.895e-06/0.4616, allocations: 0 / 0.5144 GB, free: 44.81 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0009941/0.4626, allocations: 0.6726 MB / 0.5151 GB, free: 44.43 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007461/0.4634, allocations: 146.3 kB / 0.5152 GB, free: 44.39 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01098/0.4744, allocations: 7.103 MB / 0.5222 GB, free: 40.46 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005443/0.475, allocations: 1.012 MB / 0.5232 GB, free: 39.75 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0005105/0.4755, allocations: 125.6 kB / 0.5233 GB, free: 39.72 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004906/0.476, allocations: 402.1 kB / 0.5237 GB, free: 39.43 MB / 382.1 MB Notification: Performance of SimCode: time 4e-07/0.476, allocations: 3.609 kB / 0.5237 GB, free: 39.43 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04492/0.5209, allocations: 21.27 MB / 0.5444 GB, free: 24.69 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.84/13.36, allocations: 10.5 kB / 0.5445 GB, free: 24.68 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)