Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160808.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_20160808,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160808",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160808,fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160808",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 0.03094/0.03094, allocations: 5.395 MB / 21.03 MB, free: 1.586 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001201/0.001202, allocations: 94 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 0.001285/0.001285, allocations: 200.4 kB / 25.15 MB, free: 176 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.401/1.401, allocations: 222.9 MB / 250 MB, free: 8.418 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/package.mo): time 0.01009/0.01009, allocations: 2.331 MB / 303.7 MB, free: 6.449 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002662/0.002662, allocations: 95.84 kB / 419.1 MB, free: 22.98 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.09741/0.1001, allocations: 51.2 MB / 470.3 MB, free: 3.734 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Comax_Analytical_20160808): time 0.008697/0.1088, allocations: 6.789 MB / 477.1 MB, free: 12.91 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.005415/0.1142, allocations: 3.127 MB / 480.3 MB, free: 9.773 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005302/0.1148, allocations: 16 kB / 480.3 MB, free: 9.758 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002466/0.1173, allocations: 1.096 MB / 481.4 MB, free: 8.656 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0019/0.1192, allocations: 0.8464 MB / 482.2 MB, free: 7.809 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001497/0.1207, allocations: 0.5314 MB / 482.7 MB, free: 7.281 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001528/0.1223, allocations: 1.398 MB / 484.1 MB, free: 5.879 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001493/0.1238, allocations: 1.021 MB / 485.2 MB, free: 4.828 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0007183/0.1245, allocations: 0.5566 MB / 485.7 MB, free: 4.27 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0009441/0.1254, allocations: 0.7198 MB / 486.4 MB, free: 3.547 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002048/0.1257, allocations: 140 kB / 486.6 MB, free: 3.41 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0008731/0.1265, allocations: 435.7 kB / 487 MB, free: 2.984 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002801/0.1268, allocations: 295 kB / 487.3 MB, free: 2.695 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0006437/0.1275, allocations: 0.6298 MB / 487.9 MB, free: 2.062 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002096/0.1296, allocations: 1.759 MB / 489.7 MB, free: 304 kB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.637e-06/0.1296, allocations: 0 / 489.7 MB, free: 304 kB / 350.1 MB Notification: Performance of FrontEnd: time 1.563e-06/0.1296, allocations: 0 / 489.7 MB, free: 304 kB / 350.1 MB Notification: Performance of Transformations before backend: time 1.649e-05/0.1296, allocations: 0 / 489.7 MB, free: 304 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 0.004286/0.1339, allocations: 1.8 MB / 491.5 MB, free: 14.42 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.566e-05/0.134, allocations: 8.031 kB / 491.5 MB, free: 14.41 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000207/0.1342, allocations: 164.9 kB / 491.7 MB, free: 14.24 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002215/0.1364, allocations: 375.9 kB / 492 MB, free: 13.87 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001698/0.1381, allocations: 0.772 MB / 492.8 MB, free: 13.05 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.6e-05/0.1382, allocations: 78.06 kB / 492.9 MB, free: 12.98 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001693/0.1384, allocations: 108 kB / 493 MB, free: 12.87 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002345/0.1407, allocations: 1.175 MB / 494.1 MB, free: 11.64 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.814e-05/0.1408, allocations: 0 / 494.1 MB, free: 11.64 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001086/0.1409, allocations: 44 kB / 494.2 MB, free: 11.59 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.944e-05/0.1409, allocations: 28 kB / 494.2 MB, free: 11.57 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002408/0.1434, allocations: 1.042 MB / 495.3 MB, free: 10.53 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.006836/0.1502, allocations: 4.385 MB / 499.6 MB, free: 5.941 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.003206/0.1534, allocations: 1.774 MB / 0.4897 GB, free: 3.961 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008103/0.1543, allocations: 363.4 kB / 0.49 GB, free: 3.598 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.000198/0.1545, allocations: 174.8 kB / 0.4902 GB, free: 3.391 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.00105/0.1555, allocations: 0.5513 MB / 0.4907 GB, free: 2.797 MB / 366.1 MB Notification: Performance of pre-optimization done (n=79): time 2.505e-06/0.1555, allocations: 0 / 0.4907 GB, free: 2.797 MB / 366.1 MB Notification: Performance of matching and sorting (n=79): time 0.006172/0.1617, allocations: 1.706 MB / 0.4924 GB, free: 1.047 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001688/0.1619, allocations: 285.7 kB / 0.4927 GB, free: 0.707 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000771/0.1627, allocations: 0.5576 MB / 0.4932 GB, free: 144 kB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 6.801e-05/0.1628, allocations: 41.7 kB / 0.4932 GB, free: 96 kB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004644/0.1632, allocations: 0.4961 MB / 0.4937 GB, free: 15.59 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002628/0.1635, allocations: 269.8 kB / 0.494 GB, free: 15.32 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003462/0.1639, allocations: 210.8 kB / 0.4942 GB, free: 15.11 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0002008/0.1641, allocations: 378.8 kB / 0.4945 GB, free: 14.73 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007999/0.1649, allocations: 330.4 kB / 0.4949 GB, free: 14.41 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001006/0.1659, allocations: 0.5643 MB / 0.4954 GB, free: 13.75 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 0.01799/0.1839, allocations: 3.627 MB / 0.499 GB, free: 9.957 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.363e-05/0.1839, allocations: 7.938 kB / 0.499 GB, free: 9.949 MB / 382.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.002786/0.1867, allocations: 1.206 MB / 0.5001 GB, free: 8.715 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 7.489e-05/0.1868, allocations: 89.11 kB / 0.5002 GB, free: 8.609 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.488e-05/0.1868, allocations: 8 kB / 0.5002 GB, free: 8.602 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.000468/0.1873, allocations: 84.78 kB / 0.5003 GB, free: 8.516 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001135/0.1885, allocations: 259.8 kB / 0.5006 GB, free: 8.262 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001842/0.1903, allocations: 1.585 MB / 0.5021 GB, free: 6.535 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001024/0.1914, allocations: 123.4 kB / 0.5022 GB, free: 6.414 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.768e-05/0.1915, allocations: 47.97 kB / 0.5023 GB, free: 6.367 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 0.0006234/0.1921, allocations: 377.2 kB / 0.5026 GB, free: 5.969 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001685/0.1923, allocations: 87.42 kB / 0.5027 GB, free: 5.883 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002804/0.1951, allocations: 1.245 MB / 0.5039 GB, free: 4.605 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.257e-06/0.1951, allocations: 12 kB / 0.5039 GB, free: 4.594 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.709e-06/0.1951, allocations: 4 kB / 0.5039 GB, free: 4.59 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.12e-05/0.1951, allocations: 3.984 kB / 0.504 GB, free: 4.586 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006703/0.2018, allocations: 2.547 MB / 0.5064 GB, free: 1.957 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.713e-06/0.2019, allocations: 0 / 0.5064 GB, free: 1.957 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006527/0.2025, allocations: 135.8 kB / 0.5066 GB, free: 1.824 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009027/0.2035, allocations: 334.3 kB / 0.5069 GB, free: 1.488 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001155/0.2036, allocations: 31.97 kB / 0.5069 GB, free: 1.457 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001526/0.2051, allocations: 0.8897 MB / 0.5078 GB, free: 0.5352 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.799e-06/0.2052, allocations: 4.031 kB / 0.5078 GB, free: 0.5312 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.1977/0.4029, allocations: 1.924 MB / 0.5097 GB, free: 46.41 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004072/0.4033, allocations: 241.1 kB / 0.5099 GB, free: 46.32 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001415/0.4034, allocations: 26.2 kB / 0.5099 GB, free: 46.32 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006561/0.4041, allocations: 56.41 kB / 0.51 GB, free: 46.32 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000145/0.4043, allocations: 57.98 kB / 0.51 GB, free: 46.32 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.069e-05/0.4043, allocations: 38.86 kB / 0.5101 GB, free: 46.32 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0005051/0.4048, allocations: 391.7 kB / 0.5104 GB, free: 46.23 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.6e-07/0.4049, allocations: 0 / 0.5104 GB, free: 46.23 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.001019/0.4059, allocations: 344.9 kB / 0.5108 GB, free: 46.23 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 0.006453/0.4123, allocations: 2.719 MB / 0.5134 GB, free: 45.25 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002213/0.4146, allocations: 1.162 MB / 0.5146 GB, free: 44.69 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 3.186e-06/0.4146, allocations: 3.062 kB / 0.5146 GB, free: 44.69 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001044/0.4156, allocations: 0.6669 MB / 0.5152 GB, free: 44.32 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0008272/0.4165, allocations: 150.7 kB / 0.5154 GB, free: 44.27 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01156/0.428, allocations: 7.134 MB / 0.5223 GB, free: 40.3 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005448/0.4286, allocations: 1.016 MB / 0.5233 GB, free: 39.59 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0005314/0.4292, allocations: 132.7 kB / 0.5234 GB, free: 39.55 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004781/0.4297, allocations: 401.8 kB / 0.5238 GB, free: 39.26 MB / 382.1 MB Notification: Performance of SimCode: time 6.01e-07/0.4297, allocations: 3.938 kB / 0.5238 GB, free: 39.26 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0455/0.4752, allocations: 20.86 MB / 0.5442 GB, free: 24.86 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.6/13.08, allocations: 7.016 kB / 0.5442 GB, free: 24.86 MB / 382.1 MB (rm -f PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160808.pipe ; mkfifo PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160808.pipe ; head -c 1048576 < PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160808.pipe >> ../files/PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160808.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160808_fmu --startTime=0 --stopTime=86400 --timeout=50 --tolerance=1e-08 PhotoVoltaics_TGM_PhotoVoltaics_TGM_TGM_Comax_Analytical_20160808.fmu > PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Comax_Analytical_20160808.pipe 2>&1)