Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_3.2.3_Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer.conf.json 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 3.2.3+maint.om/package.mo", uses=false) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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) Running command: "" <> buildModelFMU(Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer,fileNamePrefix="Modelica_3_2_3_Modelica_Magnetic_QuasiStatic_FundamentalWave_Examples_BasicMachines_InductionMachines_IMC_Transformer",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer,fileNamePrefix="Modelica_3_2_3_Modelica_Magnetic_QuasiStatic_FundamentalWave_Examples_BasicMachines_InductionMachines_IMC_Transformer",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001334/0.001334, allocations: 102.5 kB / 17.73 MB, free: 5.371 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00129/0.00129, allocations: 191 kB / 18.66 MB, free: 4.445 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.365/1.365, allocations: 205.1 MB / 224.5 MB, free: 12.25 MB / 190.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001396/0.001396, allocations: 51.92 kB / 329.5 MB, free: 2.367 MB / 270.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.0937/0.09511, allocations: 46.61 MB / 376.1 MB, free: 3.645 MB / 318.1 MB Notification: Performance of NFInst.instantiate(Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer): time 0.2405/0.3356, allocations: 49.52 MB / 425.6 MB, free: 11.11 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.03157/0.3672, allocations: 12.93 MB / 438.5 MB, free: 328 kB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.01209/0.3794, allocations: 324.4 kB / 438.8 MB, free: 200 kB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.03139/0.4108, allocations: 13.85 MB / 452.7 MB, free: 2.297 MB / 366.1 MB Notification: Performance of NFTyping.typeBindings: time 0.02221/0.4331, allocations: 5.472 MB / 458.2 MB, free: 12.8 MB / 382.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.01127/0.4444, allocations: 3.29 MB / 461.4 MB, free: 9.508 MB / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.03198/0.4764, allocations: 24.42 MB / 485.9 MB, free: 1.004 MB / 398.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.08301/0.5594, allocations: 46.85 MB / 0.5202 GB, free: 1.871 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.02237/0.5818, allocations: 12.71 MB / 0.5326 GB, free: 5.129 MB / 462.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.02585/0.6077, allocations: 13.92 MB / 0.5462 GB, free: 7.164 MB / 478.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0113/0.6191, allocations: 3.633 MB / 0.5498 GB, free: 3.531 MB / 478.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.4361/1.055, allocations: 4.107 MB / 0.5538 GB, free: 68.37 MB / 478.1 MB Notification: Performance of NFScalarize.scalarize: time 0.01317/1.068, allocations: 7.347 MB / 0.561 GB, free: 68.37 MB / 478.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0369/1.105, allocations: 13.87 MB / 0.5745 GB, free: 66.54 MB / 478.1 MB Notification: Performance of NFConvertDAE.convert: time 0.06145/1.167, allocations: 48.63 MB / 0.622 GB, free: 42.65 MB / 478.1 MB Notification: Performance of FrontEnd - DAE generated: time 1.223e-05/1.167, allocations: 0.7812 kB / 0.622 GB, free: 42.65 MB / 478.1 MB Notification: Performance of FrontEnd: time 1.943e-06/1.167, allocations: 0 / 0.622 GB, free: 42.65 MB / 478.1 MB Notification: Performance of Transformations before backend: time 0.00173/1.169, allocations: 0.8125 kB / 0.622 GB, free: 42.65 MB / 478.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 5875 * Number of variables: 5875 Notification: Performance of Generate backend data structure: time 0.08874/1.257, allocations: 27.79 MB / 0.6491 GB, free: 25.02 MB / 478.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.84e-05/1.258, allocations: 12.02 kB / 0.6491 GB, free: 25.01 MB / 478.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.01283/1.27, allocations: 3.011 MB / 0.6521 GB, free: 22 MB / 478.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.07517/1.346, allocations: 14.92 MB / 0.6667 GB, free: 7.219 MB / 478.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.02861/1.374, allocations: 13.4 MB / 0.6797 GB, free: 10.39 MB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.00201/1.376, allocations: 1.589 MB / 0.6813 GB, free: 8.824 MB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.01082/1.387, allocations: 2.09 MB / 0.6833 GB, free: 6.754 MB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0938/1.481, allocations: 35.17 MB / 0.7177 GB, free: 3.531 MB / 0.5138 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.001036/1.482, allocations: 31.55 kB / 0.7177 GB, free: 3.504 MB / 0.5138 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.006895/1.489, allocations: 0.8637 MB / 0.7186 GB, free: 2.66 MB / 0.5138 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.001301/1.49, allocations: 1.188 MB / 0.7197 GB, free: 1.469 MB / 0.5138 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.07302/1.563, allocations: 33 MB / 0.7519 GB, free: 464 kB / 0.545 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.4238/1.987, allocations: 107.6 MB / 0.857 GB, free: 105.5 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.03719/2.024, allocations: 55.9 MB / 0.9116 GB, free: 49.38 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0153/2.04, allocations: 9.959 MB / 0.9213 GB, free: 39.38 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.05211/2.092, allocations: 27.29 MB / 0.948 GB, free: 12.22 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 9.482e-05/2.092, allocations: 133.9 kB / 0.9481 GB, free: 12.08 MB / 0.545 GB Notification: Performance of pre-optimization done (n=894): time 1.446e-05/2.092, allocations: 0 / 0.9481 GB, free: 12.08 MB / 0.545 GB Notification: Performance of matching and sorting (n=906): time 0.3524/2.444, allocations: 39.48 MB / 0.9867 GB, free: 160.4 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.81e-05/2.445, allocations: 170.2 kB / 0.9868 GB, free: 160.3 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02116/2.466, allocations: 8.505 MB / 0.9951 GB, free: 157.2 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 0.002116/2.468, allocations: 171.5 kB / 0.9953 GB, free: 157 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.006752/2.475, allocations: 8.838 MB / 1.004 GB, free: 150.4 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 0.004215/2.479, allocations: 3.055 MB / 1.007 GB, free: 148.1 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.005817/2.485, allocations: 2.274 MB / 1.009 GB, free: 147 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 5.448e-05/2.485, allocations: 308.9 kB / 1.009 GB, free: 146.7 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.009961/2.495, allocations: 6.306 MB / 1.016 GB, free: 144.3 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01416/2.509, allocations: 10.26 MB / 1.026 GB, free: 137 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.02065/2.53, allocations: 17.62 MB / 1.043 GB, free: 120.6 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001431/2.53, allocations: 36 kB / 1.043 GB, free: 120.6 MB / 0.545 GB Notification: Performance of matching and sorting (n=1523) (initialization): time 0.04545/2.575, allocations: 20.64 MB / 1.063 GB, free: 102.6 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002444/2.576, allocations: 68 kB / 1.063 GB, free: 102.6 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003203/2.576, allocations: 125.2 kB / 1.063 GB, free: 102.5 MB / 0.545 GB Notification: Tearing is skipped for strong component 1 because system size of 204 exceeds maximum system size for tearing of linear systems (200). To adjust the maximum system size for tearing use --maxSizeLinearTearing=. Notification: Performance of postOpt tearingSystem (initialization): time 0.003256/2.579, allocations: 0.9285 MB / 1.064 GB, free: 101.7 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01095/2.59, allocations: 2.491 MB / 1.067 GB, free: 99.59 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01102/2.601, allocations: 12.47 MB / 1.079 GB, free: 87.33 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01244/2.614, allocations: 0.6186 MB / 1.079 GB, free: 86.83 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003281/2.617, allocations: 0.5345 MB / 1.08 GB, free: 86.31 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 570 * Number of states: 0 () * Number of discrete variables: 12 (booleanStep2[3].y,booleanStep2[2].y,booleanStep2[1].y,idealCloser.control[3],idealCloser.control[2],idealCloser.control[1],booleanStep2QS[3].y,booleanStep2QS[2].y,booleanStep2QS[1].y,booleanStep1QS[3].y,booleanStep1QS[2].y,booleanStep1QS[1].y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1269): * Single equations (assignments): 1262 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 5 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 2 systems {(2,100.0%), (204,1.3%)} * Non-linear Jacobian (size): 0 systems * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 5 systems {(3,25,100.0%), (1,8,100.0%), (1,1,100.0%), (1,13,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.01948/2.637, allocations: 7.989 MB / 1.088 GB, free: 79.51 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.004419/2.641, allocations: 0.9183 MB / 1.089 GB, free: 78.58 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.03064/2.672, allocations: 17.07 MB / 1.105 GB, free: 63.06 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.571e-05/2.672, allocations: 96.81 kB / 1.105 GB, free: 62.97 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001077/2.672, allocations: 47.75 kB / 1.105 GB, free: 62.93 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001842/2.672, allocations: 47.81 kB / 1.105 GB, free: 62.88 MB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.07745/2.75, allocations: 35.95 MB / 1.14 GB, free: 26.87 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.241e-05/2.75, allocations: 11.5 kB / 1.14 GB, free: 26.86 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.006532/2.756, allocations: 1.428 MB / 1.142 GB, free: 25.43 MB / 0.545 GB Notification: Tearing is skipped for strong component 14 because system size of 204 exceeds maximum system size for tearing of linear systems (200). To adjust the maximum system size for tearing use --maxSizeLinearTearing=. Notification: Performance of postOpt tearingSystem (simulation): time 0.003145/2.759, allocations: 0.9732 MB / 1.143 GB, free: 24.44 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001607/2.761, allocations: 207.9 kB / 1.143 GB, free: 24.23 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01236/2.773, allocations: 17.05 MB / 1.16 GB, free: 6.262 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.731e-06/2.773, allocations: 11.94 kB / 1.16 GB, free: 6.25 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.3472/3.121, allocations: 24.81 MB / 1.184 GB, free: 147.8 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.009136/3.13, allocations: 2.248 MB / 1.186 GB, free: 147 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.004381/3.134, allocations: 180.5 kB / 1.186 GB, free: 146.9 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.008309/3.143, allocations: 496.8 kB / 1.187 GB, free: 146.7 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.002866/3.145, allocations: 0.7908 MB / 1.188 GB, free: 146.6 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0009826/3.146, allocations: 259.9 kB / 1.188 GB, free: 146.6 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.01325/3.16, allocations: 5.777 MB / 1.193 GB, free: 144.5 MB / 0.545 GB Notification: Performance of sort global known variables: time 4.61e-07/3.16, allocations: 0 / 1.193 GB, free: 144.5 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.02111/3.181, allocations: 3.505 MB / 1.197 GB, free: 144.2 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 27 * Number of states: 12 (imcQS.inertiaRotor.w,imcQS.rotorCage.port_p.reference.gamma,quadraticLoadTorqueQS.phi,imc.inertiaRotor.w,imc.stator.zeroInductor.i0,imc.stator.core.Phi.re,imc.stator.core.Phi.im,imc.rotorCage.electroMagneticConverter.singlePhaseElectroMagneticConverter[3].Phi.re,imc.rotorCage.electroMagneticConverter.singlePhaseElectroMagneticConverter[3].Phi.im,transformer.l1sigma.inductor[2].i,transformer.l1sigma.inductor[3].i,quadraticLoadTorque.phi) * Number of discrete variables: 12 (booleanStep1QS[1].y,booleanStep1QS[2].y,booleanStep1QS[3].y,booleanStep2QS[1].y,booleanStep2QS[2].y,booleanStep2QS[3].y,idealCloser.control[1],idealCloser.control[2],idealCloser.control[3],booleanStep2[1].y,booleanStep2[2].y,booleanStep2[3].y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (703): * Single equations (assignments): 695 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 7 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 1 system {(204,1.3%)} * Non-linear Jacobian (size): 0 systems * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 7 systems {(1,1,100.0%), (1,8,100.0%), (2,26,100.0%), (1,1,100.0%), (1,8,100.0%), (1,13,100.0%), (2,12,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.04764/3.229, allocations: 25.78 MB / 1.222 GB, free: 133.3 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.03002/3.259, allocations: 16.27 MB / 1.238 GB, free: 119.3 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 1.772e-05/3.259, allocations: 4 kB / 1.238 GB, free: 119.3 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.01737/3.276, allocations: 8.747 MB / 1.246 GB, free: 111.7 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.02341/3.3, allocations: 2.565 MB / 1.249 GB, free: 109.5 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.6198/3.919, allocations: 130 MB / 1.376 GB, free: 198.9 MB / 0.5763 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.03305/3.953, allocations: 13.21 MB / 1.389 GB, free: 197.7 MB / 0.5763 GB Notification: Performance of simCode: alias equations: time 0.01293/3.966, allocations: 4.014 MB / 1.393 GB, free: 197.3 MB / 0.5763 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0138/3.979, allocations: 7.949 MB / 1.4 GB, free: 194.4 MB / 0.5763 GB Notification: Performance of SimCode: time 9.72e-07/3.979, allocations: 0 / 1.4 GB, free: 194.4 MB / 0.5763 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.6732/4.653, allocations: 283.5 MB / 1.677 GB, free: 127.9 MB / 0.5763 GB Notification: Performance of buildModelFMU: Generate platform static: time 34.34/39, allocations: 7.281 kB / 1.677 GB, free: 127.9 MB / 0.5763 GB (rm -f Modelica_3.2.3_Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer.pipe ; mkfifo Modelica_3.2.3_Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer.pipe ; head -c 1048576 < Modelica_3.2.3_Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer.pipe >> ../files/Modelica_3.2.3_Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Modelica_3.2.3_Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer_res.mat --tempDir=temp_Modelica_3_2_3_Modelica_Magnetic_QuasiStatic_FundamentalWave_Examples_BasicMachines_InductionMachines_IMC_Transformer_fmu --startTime=0 --stopTime=2.5 --timeout=50 --tolerance=1e-06 Modelica_3_2_3_Modelica_Magnetic_QuasiStatic_FundamentalWave_Examples_BasicMachines_InductionMachines_IMC_Transformer.fmu > Modelica_3.2.3_Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Transformer.pipe 2>&1)