Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr AixLib_AixLib.Fluid.BaseClasses.Validation.MassFlowRateMultiplier.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo", uses=false) Using package SDF with version 0.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo) Using package Modelica_DeviceDrivers with version 2.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/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 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 AixLib with version 1.3.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/package.mo) Running command: "" <> buildModelFMU(AixLib.Fluid.BaseClasses.Validation.MassFlowRateMultiplier,fileNamePrefix="AixLib_AixLib_Fluid_BaseClasses_Validation_MassFlowRateMultiplier",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(AixLib.Fluid.BaseClasses.Validation.MassFlowRateMultiplier,fileNamePrefix="AixLib_AixLib_Fluid_BaseClasses_Validation_MassFlowRateMultiplier",fmuType="me",version="2.0",platforms={"static"}) [:1:1-1:32:writable] Error: Class GC_set_max_heap_size not found in scope (looking for a function or record). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/BoundaryConditions/InternalGains/Examples/InternalGains/Lights.mo:27:20-27:398:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/BoundaryConditions/InternalGains/Examples/InternalGains/Machines.mo:31:20-31:400:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_Cleanergy_C9G.mo:36:34-36:594:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:588:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:3852:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_NE_SE_SW_NW_Hor.mo:5:35-5:324:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_Hor.mo:5:35-5:320:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_RoofN_Roof_S.mo:5:35-5:362:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6228:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6853:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:8435:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:9369:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:11505:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:12875:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:2066:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:4252:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/Examples/DryAir/DryAir_test.mo:71:18-71:405:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/package.mo): time 1.632/1.632, allocations: 265 MB / 272.3 MB, free: 8.711 MB / 218.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00109/0.001089, allocations: 181.2 kB / 329.7 MB, free: 280 kB / 266.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.356/1.356, allocations: 221.3 MB / 0.5941 GB, free: 14.52 MB / 458.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001065/0.001065, allocations: 100.6 kB / 0.6993 GB, free: 2.648 MB / 0.5418 GB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/package.mo): time 0.05302/0.05302, allocations: 11.89 MB / 0.816 GB, free: 65.5 MB / 0.5418 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo:9:42-9:258:writable] Notification: This is an open source dummy package of a commercial library. If you want it to be supported, you will need to add an implemention on our github repository: https://github.com/Modelica-OpenVendorSpecificLibraries. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo): time 0.0004549/0.0004549, allocations: 17.59 kB / 0.924 GB, free: 86.95 MB / 0.573 GB Notification: Performance of FrontEnd - loaded program: time 0.2669/0.2674, allocations: 117.8 MB / 1.039 GB, free: 9.078 MB / 0.5887 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.28/0.5473, allocations: 110.2 MB / 1.147 GB, free: 10.76 MB / 0.698 GB Notification: Performance of FrontEnd - scodeFlatten: time 0.8782/1.426, allocations: 361.2 MB / 1.499 GB, free: 12.16 MB / 0.9012 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002182/1.426, allocations: 85.84 kB / 1.5 GB, free: 12.12 MB / 0.9012 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 23 * Number of variables: 23 Notification: Performance of Generate backend data structure: time 0.5686/1.994, allocations: 74.03 MB / 1.572 GB, free: 284.7 MB / 0.9168 GB Notification: Performance of prepare preOptimizeDAE: time 4.764e-05/1.995, allocations: 8.594 kB / 1.572 GB, free: 284.7 MB / 0.9168 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001002/1.995, allocations: 17.38 kB / 1.572 GB, free: 284.7 MB / 0.9168 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003504/1.995, allocations: 240.2 kB / 1.572 GB, free: 284.5 MB / 0.9168 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.532e-05/1.995, allocations: 3.125 kB / 1.572 GB, free: 284.5 MB / 0.9168 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.011e-05/1.995, allocations: 11.81 kB / 1.572 GB, free: 284.5 MB / 0.9168 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.000175/1.995, allocations: 62.09 kB / 1.572 GB, free: 284.5 MB / 0.9168 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001985/1.995, allocations: 106.2 kB / 1.572 GB, free: 284.4 MB / 0.9168 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.287e-06/1.995, allocations: 3.938 kB / 1.572 GB, free: 284.4 MB / 0.9168 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.505e-05/1.995, allocations: 0.9688 kB / 1.572 GB, free: 284.4 MB / 0.9168 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.017e-06/1.995, allocations: 2.188 kB / 1.572 GB, free: 284.4 MB / 0.9168 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0007631/1.996, allocations: 0.4964 MB / 1.573 GB, free: 284 MB / 0.9168 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001239/1.996, allocations: 68.52 kB / 1.573 GB, free: 284 MB / 0.9168 GB Notification: Performance of preOpt resolveLoops (simulation): time 7.394e-05/1.996, allocations: 49.91 kB / 1.573 GB, free: 283.9 MB / 0.9168 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002785/1.997, allocations: 334.9 kB / 1.573 GB, free: 283.5 MB / 0.9168 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.363e-05/1.997, allocations: 39.55 kB / 1.573 GB, free: 283.5 MB / 0.9168 GB Notification: Performance of pre-optimization done (n=7): time 1.813e-06/1.997, allocations: 0 / 1.573 GB, free: 283.5 MB / 0.9168 GB Notification: Performance of matching and sorting (n=7): time 0.0003967/1.997, allocations: 92.84 kB / 1.573 GB, free: 283.4 MB / 0.9168 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.557e-05/1.997, allocations: 78.27 kB / 1.573 GB, free: 283.4 MB / 0.9168 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001156/1.997, allocations: 139.5 kB / 1.573 GB, free: 283.2 MB / 0.9168 GB Notification: Performance of collectPreVariables (initialization): time 1.658e-05/1.997, allocations: 30.8 kB / 1.574 GB, free: 283.2 MB / 0.9168 GB Notification: Performance of collectInitialEqns (initialization): time 5.448e-05/1.997, allocations: 114.5 kB / 1.574 GB, free: 283.1 MB / 0.9168 GB Notification: Performance of collectInitialBindings (initialization): time 2.275e-05/1.997, allocations: 20.94 kB / 1.574 GB, free: 283.1 MB / 0.9168 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.112e-06/1.998, allocations: 0 / 1.574 GB, free: 283.1 MB / 0.9168 GB Notification: Performance of setup shared object (initialization): time 6.611e-05/1.998, allocations: 329.9 kB / 1.574 GB, free: 282.8 MB / 0.9168 GB Notification: Performance of preBalanceInitialSystem (initialization): time 3.789e-05/1.998, allocations: 19.17 kB / 1.574 GB, free: 282.8 MB / 0.9168 GB Notification: Performance of partitionIndependentBlocks (initialization): time 6.619e-05/1.998, allocations: 61.64 kB / 1.574 GB, free: 282.7 MB / 0.9168 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0001412/1.998, allocations: 33.34 kB / 1.574 GB, free: 282.7 MB / 0.9168 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.106e-06/1.998, allocations: 1.125 kB / 1.574 GB, free: 282.7 MB / 0.9168 GB Notification: Performance of matching and sorting (n=7) (initialization): time 0.0002287/1.998, allocations: 97.69 kB / 1.574 GB, free: 282.7 MB / 0.9168 GB Notification: Performance of prepare postOptimizeDAE: time 1.436e-05/1.998, allocations: 4.375 kB / 1.574 GB, free: 282.7 MB / 0.9168 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.73e-06/1.998, allocations: 2.125 kB / 1.574 GB, free: 282.7 MB / 0.9168 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.362e-05/1.998, allocations: 9.062 kB / 1.574 GB, free: 282.6 MB / 0.9168 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001776/1.998, allocations: 19.8 kB / 1.574 GB, free: 282.6 MB / 0.9168 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.162e-06/1.998, allocations: 1.281 kB / 1.574 GB, free: 282.6 MB / 0.9168 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001602/1.999, allocations: 22.78 kB / 1.574 GB, free: 282.6 MB / 0.9168 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.438e-05/1.999, allocations: 16.62 kB / 1.574 GB, free: 282.6 MB / 0.9168 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 3 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (7): * Single equations (assignments): 7 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 6.36e-05/1.999, allocations: 106.9 kB / 1.574 GB, free: 282.5 MB / 0.9168 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.599e-05/1.999, allocations: 13.34 kB / 1.574 GB, free: 282.5 MB / 0.9168 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.000317/1.999, allocations: 131.2 kB / 1.574 GB, free: 282.5 MB / 0.9168 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.732e-06/1.999, allocations: 1.969 kB / 1.574 GB, free: 282.5 MB / 0.9168 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.678e-06/1.999, allocations: 0 / 1.574 GB, free: 282.5 MB / 0.9168 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.751e-06/1.999, allocations: 4.938 kB / 1.574 GB, free: 282.4 MB / 0.9168 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0005517/2, allocations: 434.9 kB / 1.575 GB, free: 282.1 MB / 0.9168 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.09e-06/2, allocations: 4.969 kB / 1.575 GB, free: 282.1 MB / 0.9168 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001097/2, allocations: 25.23 kB / 1.575 GB, free: 282.1 MB / 0.9168 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.51e-06/2, allocations: 1.219 kB / 1.575 GB, free: 282.1 MB / 0.9168 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.347e-05/2, allocations: 6.219 kB / 1.575 GB, free: 282.1 MB / 0.9168 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.877e-06/2, allocations: 6.281 kB / 1.575 GB, free: 282.1 MB / 0.9168 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.468e-06/2, allocations: 1 kB / 1.575 GB, free: 282.1 MB / 0.9168 GB Notification: Performance of postOpt detectJacobianSparsePattern (simulation): time 0.000322/2, allocations: 360.2 kB / 1.575 GB, free: 281.8 MB / 0.9168 GB Notification: Performance of postOpt generateSymbolicLinearization (simulation): time 0.0004318/2.001, allocations: 0.7359 MB / 1.576 GB, free: 281 MB / 0.9168 GB Notification: Performance of postOpt removeConstants (simulation): time 7.198e-05/2.001, allocations: 99.2 kB / 1.576 GB, free: 280.9 MB / 0.9168 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.695e-05/2.001, allocations: 2.031 kB / 1.576 GB, free: 280.9 MB / 0.9168 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001684/2.001, allocations: 20.47 kB / 1.576 GB, free: 280.9 MB / 0.9168 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.254e-05/2.001, allocations: 8.625 kB / 1.576 GB, free: 280.9 MB / 0.9168 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.318e-05/2.001, allocations: 7.281 kB / 1.576 GB, free: 280.9 MB / 0.9168 GB Notification: Performance of sort global known variables: time 8.139e-05/2.001, allocations: 115.7 kB / 1.576 GB, free: 280.8 MB / 0.9168 GB Notification: Performance of remove unused functions: time 0.001021/2.002, allocations: 78.97 kB / 1.576 GB, free: 280.8 MB / 0.9168 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (9): * Single equations (assignments): 7 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0005839/2.003, allocations: 240.9 kB / 1.577 GB, free: 280.7 MB / 0.9168 GB Notification: Performance of simCode: created initialization part: time 0.0001929/2.003, allocations: 75.84 kB / 1.577 GB, free: 280.6 MB / 0.9168 GB Notification: Performance of simCode: created event and clocks part: time 2.023e-06/2.003, allocations: 0.8125 kB / 1.577 GB, free: 280.6 MB / 0.9168 GB Notification: Performance of simCode: created simulation system equations: time 9.341e-05/2.003, allocations: 48.16 kB / 1.577 GB, free: 280.6 MB / 0.9168 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004525/2.003, allocations: 51.67 kB / 1.577 GB, free: 280.6 MB / 0.9168 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0004879/2.004, allocations: 208 kB / 1.577 GB, free: 280.5 MB / 0.9168 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002662/2.004, allocations: 0.7482 MB / 1.578 GB, free: 279.8 MB / 0.9168 GB Notification: Performance of SimCode: time 2.71e-07/2.004, allocations: 0 / 1.578 GB, free: 279.8 MB / 0.9168 GB (rm -f AixLib_AixLib.Fluid.BaseClasses.Validation.MassFlowRateMultiplier.pipe ; mkfifo AixLib_AixLib.Fluid.BaseClasses.Validation.MassFlowRateMultiplier.pipe ; head -c 1048576 < AixLib_AixLib.Fluid.BaseClasses.Validation.MassFlowRateMultiplier.pipe >> ../files/AixLib_AixLib.Fluid.BaseClasses.Validation.MassFlowRateMultiplier.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_AixLib_AixLib_Fluid_BaseClasses_Validation_MassFlowRateMultiplier_fmu --startTime=0 --stopTime=10 --timeout=50 --tolerance=1e-06 AixLib_AixLib_Fluid_BaseClasses_Validation_MassFlowRateMultiplier.fmu > AixLib_AixLib.Fluid.BaseClasses.Validation.MassFlowRateMultiplier.pipe 2>&1)