Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Modelica_3.2.3_Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) 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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Running command: "" <> buildModelFMU(Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive,fileNamePrefix="Modelica_3_2_3_Modelica_Electrical_Machines_Examples_AsynchronousInductionMachines_AIMC_InverterDrive",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive,fileNamePrefix="Modelica_3_2_3_Modelica_Electrical_Machines_Examples_AsynchronousInductionMachines_AIMC_InverterDrive",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001988/0.001988, allocations: 172.9 kB / 14.1 MB, free: 1.223 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.525/1.525, allocations: 205.2 MB / 219.8 MB, free: 14.21 MB / 186.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.000839/0.0008389, allocations: 90.7 kB / 268 MB, free: 14.04 MB / 234.7 MB Notification: Performance of FrontEnd - loaded program: time 3.046e-05/3.055e-05, allocations: 0 / 322.5 MB, free: 17.25 MB / 234.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.08399/0.08404, allocations: 47.57 MB / 370.1 MB, free: 1.617 MB / 266.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 0.3421/0.4262, allocations: 119.8 MB / 489.9 MB, free: 5.832 MB / 362.7 MB Notification: Performance of FrontEnd - mkProgramGraph: time 0.000253/0.4265, allocations: 85.89 kB / 490 MB, free: 5.789 MB / 362.7 MB Notification: Performance of FrontEnd - DAE generated: time 0.4139/0.8403, allocations: 85.02 MB / 0.5616 GB, free: 94.45 MB / 410.7 MB Notification: Performance of FrontEnd: time 1.723e-06/0.8404, allocations: 0 / 0.5616 GB, free: 94.45 MB / 410.7 MB Notification: Performance of Transformations before backend: time 0.0004093/0.8408, allocations: 116.7 kB / 0.5617 GB, free: 94.44 MB / 410.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1064 * Number of variables: 1064 Notification: Performance of Generate backend data structure: time 0.01099/0.8518, allocations: 4.454 MB / 0.566 GB, free: 92.74 MB / 410.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.353e-05/0.8519, allocations: 7.688 kB / 0.566 GB, free: 92.74 MB / 410.7 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001657/0.8535, allocations: 0.5705 MB / 0.5666 GB, free: 92.68 MB / 410.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00185/0.8554, allocations: 0.5657 MB / 0.5672 GB, free: 92.41 MB / 410.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006169/0.8616, allocations: 3.095 MB / 0.5702 GB, free: 91.71 MB / 410.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006787/0.8623, allocations: 435.4 kB / 0.5706 GB, free: 91.66 MB / 410.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0009107/0.8632, allocations: 405.3 kB / 0.571 GB, free: 91.65 MB / 410.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01008/0.8733, allocations: 5.931 MB / 0.5768 GB, free: 89.27 MB / 410.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 9.678e-05/0.8735, allocations: 11.66 kB / 0.5768 GB, free: 89.26 MB / 410.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000417/0.8739, allocations: 181.1 kB / 0.577 GB, free: 89.13 MB / 410.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001434/0.874, allocations: 176.6 kB / 0.5771 GB, free: 89.12 MB / 410.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01002/0.8841, allocations: 5.344 MB / 0.5823 GB, free: 87.09 MB / 410.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03542/0.9195, allocations: 18.61 MB / 0.6005 GB, free: 77.79 MB / 410.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.005848/0.9254, allocations: 4.295 MB / 0.6047 GB, free: 74.53 MB / 410.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.00384/0.9293, allocations: 2.892 MB / 0.6075 GB, free: 71.89 MB / 410.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0005133/0.9299, allocations: 152.9 kB / 0.6077 GB, free: 71.73 MB / 410.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004083/0.934, allocations: 2.286 MB / 0.6099 GB, free: 69.78 MB / 410.7 MB Notification: Performance of pre-optimization done (n=293): time 9.889e-06/0.934, allocations: 0 / 0.6099 GB, free: 69.78 MB / 410.7 MB Notification: Performance of matching and sorting (n=309): time 0.02022/0.9542, allocations: 11.29 MB / 0.6209 GB, free: 59.85 MB / 410.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 9.913e-05/0.9544, allocations: 336.8 kB / 0.6213 GB, free: 59.46 MB / 410.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004188/0.9586, allocations: 2.625 MB / 0.6238 GB, free: 57.11 MB / 410.7 MB Notification: Performance of collectPreVariables (initialization): time 0.000289/0.9589, allocations: 77.7 kB / 0.6239 GB, free: 57.03 MB / 410.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.001315/0.9602, allocations: 1.797 MB / 0.6256 GB, free: 55.42 MB / 410.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0007711/0.961, allocations: 0.9982 MB / 0.6266 GB, free: 54.52 MB / 410.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002548/0.9612, allocations: 60 kB / 0.6267 GB, free: 54.46 MB / 410.7 MB Notification: Performance of setup shared object (initialization): time 0.0001673/0.9614, allocations: 427.2 kB / 0.6271 GB, free: 54.07 MB / 410.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002335/0.9638, allocations: 1.823 MB / 0.6289 GB, free: 52.27 MB / 410.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002645/0.9664, allocations: 2.335 MB / 0.6311 GB, free: 49.76 MB / 410.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002468/0.9689, allocations: 2.026 MB / 0.6331 GB, free: 47.71 MB / 410.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.909e-06/0.9689, allocations: 7.984 kB / 0.6331 GB, free: 47.7 MB / 410.7 MB Notification: Performance of matching and sorting (n=377) (initialization): time 0.007572/0.9765, allocations: 5.565 MB / 0.6386 GB, free: 42.07 MB / 410.7 MB Notification: Performance of prepare postOptimizeDAE: time 4.815e-05/0.9766, allocations: 33.7 kB / 0.6386 GB, free: 42.04 MB / 410.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.285e-05/0.9766, allocations: 12 kB / 0.6386 GB, free: 42.02 MB / 410.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.003216/0.9798, allocations: 1.659 MB / 0.6402 GB, free: 40.36 MB / 410.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002341/0.9822, allocations: 0.4993 MB / 0.6407 GB, free: 39.86 MB / 410.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01679/0.999, allocations: 15.7 MB / 0.656 GB, free: 23.76 MB / 410.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004558/1.004, allocations: 451.6 kB / 0.6565 GB, free: 23.32 MB / 410.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006879/1.004, allocations: 104 kB / 0.6566 GB, free: 23.22 MB / 410.7 MB Warning: Assuming fixed start value for the following 1 variables: inductor.inductor[3].i:VARIABLE(start = 0.0 unit = "A" ) "Current flowing from pin p to pin n" type: Real [3] Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 46 * Number of states: 0 () * Number of discrete variables: 52 ($PRE.pwm.svPWM.firstTrigger,pwm.svPWM.firstTrigger,$PRE.pwm.svPWM.phiSec,pwm.svPWM.phiSec,$PRE.pwm.svPWM.phiPos,pwm.svPWM.phiPos,$PRE.pwm.svPWM.phiRef,pwm.svPWM.phiRef,$PRE.pwm.svPWM.uRef,pwm.svPWM.uRef,$whenCondition2,$whenCondition1,pwm.svPWM.sampleTrigger,rectifier.diode_p.idealDiode[1].off,rectifier.diode_p.idealDiode[2].off,rectifier.diode_p.idealDiode[3].off,rectifier.diode_n.idealDiode[1].off,rectifier.diode_n.idealDiode[2].off,rectifier.diode_n.idealDiode[3].off,inverter.andCondition_p[1].y,inverter.andCondition_p[2].y,inverter.andCondition_p[3].y,inverter.andCondition_n[1].y,inverter.andCondition_n[2].y,inverter.andCondition_n[3].y,inverter.fire_n[1],inverter.fire_n[2],inverter.fire_n[3],inverter.transistor_p.idealGTOThyristor[1].off,inverter.transistor_p.idealGTOThyristor[2].off,inverter.transistor_p.idealGTOThyristor[3].off,inverter.diode_p.idealDiode[1].off,inverter.diode_p.idealDiode[2].off,inverter.diode_p.idealDiode[3].off,inverter.transistor_n.idealGTOThyristor[1].off,inverter.transistor_n.idealGTOThyristor[2].off,inverter.transistor_n.idealGTOThyristor[3].off,inverter.diode_n.idealDiode[1].off,inverter.diode_n.idealDiode[2].off,inverter.diode_n.idealDiode[3].off,$PRE.pwm.svPWM.ka,pwm.svPWM.ka,$PRE.pwm.svPWM.kb,pwm.svPWM.kb,$PRE.pwm.svPWM.ta,pwm.svPWM.ta,$PRE.pwm.svPWM.tb,pwm.svPWM.tb,$PRE.pwm.svPWM.t0,pwm.svPWM.t0,$PRE.pwm.svPWM.T0,pwm.svPWM.T0) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (271): * Single equations (assignments): 265 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 2 {(2,100.0%),(2,100.0%)} * Non-linear Jacobian: 0 * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 2 {(2,100.0%) 12,(1,100.0%) 1} * Non-linear torn systems: 1 {19 72} Notification: Performance of prepare postOptimizeDAE: time 0.001394/1.006, allocations: 345.5 kB / 0.6569 GB, free: 22.88 MB / 410.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001143/1.007, allocations: 347.8 kB / 0.6572 GB, free: 22.54 MB / 410.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.008918/1.016, allocations: 5.631 MB / 0.6627 GB, free: 16.83 MB / 410.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.026e-05/1.016, allocations: 32 kB / 0.6628 GB, free: 16.8 MB / 410.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.511e-05/1.016, allocations: 4 kB / 0.6628 GB, free: 16.8 MB / 410.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.573e-05/1.016, allocations: 11.95 kB / 0.6628 GB, free: 16.79 MB / 410.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0195/1.035, allocations: 10.8 MB / 0.6733 GB, free: 5.848 MB / 410.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.467e-05/1.036, allocations: 8.125 kB / 0.6733 GB, free: 5.84 MB / 410.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001713/1.037, allocations: 387.4 kB / 0.6737 GB, free: 5.461 MB / 410.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.003497/1.041, allocations: 1.694 MB / 0.6754 GB, free: 3.762 MB / 410.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004187/1.041, allocations: 75.86 kB / 0.6754 GB, free: 3.688 MB / 410.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02142/1.063, allocations: 17.22 MB / 0.6923 GB, free: 1.914 MB / 426.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.298e-06/1.063, allocations: 7.984 kB / 0.6923 GB, free: 1.906 MB / 426.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2407/1.303, allocations: 8.688 MB / 0.7007 GB, free: 100.3 MB / 426.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.003436/1.307, allocations: 0.884 MB / 0.7016 GB, free: 100.2 MB / 426.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001364/1.308, allocations: 69.48 kB / 0.7017 GB, free: 100.2 MB / 426.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004166/1.312, allocations: 428.4 kB / 0.7021 GB, free: 100.2 MB / 426.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001436/1.314, allocations: 0.5136 MB / 0.7026 GB, free: 100.2 MB / 426.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002955/1.314, allocations: 86.3 kB / 0.7027 GB, free: 100.2 MB / 426.7 MB Notification: Performance of sorting global known variables: time 0.004089/1.318, allocations: 2.021 MB / 0.7046 GB, free: 100.1 MB / 426.7 MB Notification: Performance of sort global known variables: time 5.01e-07/1.318, allocations: 0 / 0.7046 GB, free: 100.1 MB / 426.7 MB Notification: Performance of remove unused functions: time 0.005165/1.324, allocations: 1.131 MB / 0.7057 GB, free: 100.1 MB / 426.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 13 * Number of states: 12 (inductor.inductor[1].i,inductor.inductor[2].i,inductor.inductor[3].i,capacitor.v,aimc.i_0_s,aimc.idq_sr[1],aimc.idq_sr[2],aimc.idq_rr[1],aimc.idq_rr[2],loadInertia.w,loadTorque.phi,vfController.x) * Number of discrete variables: 41 (pwm.svPWM.sampleTrigger,$whenCondition2,$whenCondition1,rectifier.diode_p.idealDiode[1].off,rectifier.diode_p.idealDiode[2].off,rectifier.diode_p.idealDiode[3].off,rectifier.diode_n.idealDiode[1].off,rectifier.diode_n.idealDiode[2].off,rectifier.diode_n.idealDiode[3].off,inverter.andCondition_p[1].y,inverter.andCondition_p[2].y,inverter.andCondition_p[3].y,inverter.andCondition_n[1].y,inverter.andCondition_n[2].y,inverter.andCondition_n[3].y,inverter.fire_n[1],inverter.fire_n[2],inverter.fire_n[3],inverter.transistor_p.idealGTOThyristor[1].off,inverter.transistor_p.idealGTOThyristor[2].off,inverter.transistor_p.idealGTOThyristor[3].off,inverter.diode_p.idealDiode[1].off,inverter.diode_p.idealDiode[2].off,inverter.diode_p.idealDiode[3].off,inverter.transistor_n.idealGTOThyristor[1].off,inverter.transistor_n.idealGTOThyristor[2].off,inverter.transistor_n.idealGTOThyristor[3].off,inverter.diode_n.idealDiode[1].off,inverter.diode_n.idealDiode[2].off,inverter.diode_n.idealDiode[3].off,pwm.svPWM.firstTrigger,pwm.svPWM.uRef,pwm.svPWM.phiRef,pwm.svPWM.phiPos,pwm.svPWM.ka,pwm.svPWM.kb,pwm.svPWM.phiSec,pwm.svPWM.ta,pwm.svPWM.tb,pwm.svPWM.t0,pwm.svPWM.T0) * Number of discrete states: 11 (pwm.svPWM.T0,pwm.svPWM.t0,pwm.svPWM.ta,pwm.svPWM.tb,pwm.svPWM.phiSec,pwm.svPWM.kb,pwm.svPWM.ka,pwm.svPWM.phiPos,pwm.svPWM.phiRef,pwm.svPWM.uRef,$whenCondition1) * Top-level inputs: 0 Notification: Strong component statistics for simulation (196): * Single equations (assignments): 189 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 1 * If-equations: 0 * Equation systems (linear and non-linear blocks): 1 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 1 {(2,100.0%)} * Non-linear Jacobian: 0 * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 3 {(2,100.0%) 12,(1,100.0%) 1,(2,100.0%) 1} * Non-linear torn systems: 1 {19 72} Notification: Performance of Backend phase and start with SimCode phase: time 0.01407/1.338, allocations: 10.3 MB / 0.7158 GB, free: 98.07 MB / 426.7 MB Notification: Performance of simCode: created initialization part: time 0.008371/1.346, allocations: 5.698 MB / 0.7214 GB, free: 96.6 MB / 426.7 MB Notification: Performance of simCode: created event and clocks part: time 1.164e-05/1.346, allocations: 3.875 kB / 0.7214 GB, free: 96.6 MB / 426.7 MB Notification: Performance of simCode: created simulation system equations: time 0.007699/1.354, allocations: 5.19 MB / 0.7264 GB, free: 94.28 MB / 426.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005517/1.359, allocations: 0.9409 MB / 0.7274 GB, free: 94.05 MB / 426.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02201/1.381, allocations: 9.997 MB / 0.7371 GB, free: 90.54 MB / 426.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002781/1.384, allocations: 3.309 MB / 0.7404 GB, free: 89.31 MB / 426.7 MB Notification: Performance of simCode: alias equations: time 0.002738/1.387, allocations: 0.7684 MB / 0.7411 GB, free: 89.25 MB / 426.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001986/1.389, allocations: 1.708 MB / 0.7428 GB, free: 87.84 MB / 426.7 MB Notification: Performance of SimCode: time 1.002e-06/1.389, allocations: 0 / 0.7428 GB, free: 87.84 MB / 426.7 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1348/1.524, allocations: 104.8 MB / 0.8451 GB, free: 1.48 MB / 426.7 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001961/1.524, allocations: 228.7 kB / 0.8453 GB, free: 1.25 MB / 426.7 MB Notification: Performance of buildModelFMU: Generate platform static: time 5.139/6.663, allocations: 3.938 kB / 0.8453 GB, free: 1.246 MB / 426.7 MB (rm -f Modelica_3.2.3_Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive.pipe ; mkfifo Modelica_3.2.3_Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive.pipe ; head -c 1048576 < Modelica_3.2.3_Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive.pipe >> ../files/Modelica_3.2.3_Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator -r=Modelica_3.2.3_Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive_res.mat --tempDir=temp_Modelica_3_2_3_Modelica_Electrical_Machines_Examples_AsynchronousInductionMachines_AIMC_InverterDrive_fmu --startTime=0 --stopTime=1.5 --timeout=50 --tolerance=1e-06 Modelica_3_2_3_Modelica_Electrical_Machines_Examples_AsynchronousInductionMachines_AIMC_InverterDrive.fmu > Modelica_3.2.3_Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_InverterDrive.pipe 2>&1)