Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_trunk_Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo", uses=false) Using package Modelica with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo) Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo) Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo) Running command: "" <> buildModelFMU(Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier,fileNamePrefix="Modelica_trunk_Modelica_Electrical_Machines_Examples_SynchronousMachines_SMEE_Rectifier",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier,fileNamePrefix="Modelica_trunk_Modelica_Electrical_Machines_Examples_SynchronousMachines_SMEE_Rectifier",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.001096/0.001096, allocations: 117.6 kB / 17.79 MB, free: 5.254 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001279/0.001279, allocations: 200.7 kB / 18.74 MB, free: 4.312 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 1.321/1.321, allocations: 227.4 MB / 246.9 MB, free: 10.46 MB / 206.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001085/0.001085, allocations: 67.89 kB / 358.2 MB, free: 13.4 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2648/0.2659, allocations: 50.54 MB / 408.8 MB, free: 1.543 MB / 318.1 MB Notification: Performance of NFInst.instantiate(Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier): time 0.01257/0.2785, allocations: 11.99 MB / 420.8 MB, free: 5.504 MB / 334.1 MB Notification: Performance of NFInst.instExpressions: time 0.01154/0.2901, allocations: 6.549 MB / 427.3 MB, free: 14.94 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002341/0.2925, allocations: 63.75 kB / 427.4 MB, free: 14.88 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002719/0.2953, allocations: 0.9044 MB / 428.3 MB, free: 13.96 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.003233/0.2985, allocations: 0.986 MB / 429.3 MB, free: 12.97 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.004555/0.3031, allocations: 1.964 MB / 431.2 MB, free: 11.02 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.005165/0.3083, allocations: 3.445 MB / 434.7 MB, free: 7.551 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.002536/0.3108, allocations: 2.174 MB / 436.8 MB, free: 5.312 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00223/0.3131, allocations: 1.46 MB / 438.3 MB, free: 3.848 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002207/0.3153, allocations: 1.708 MB / 440 MB, free: 2.133 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0005491/0.3158, allocations: 360 kB / 440.4 MB, free: 1.781 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001143/0.317, allocations: 0.5738 MB / 440.9 MB, free: 1.207 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0008377/0.3179, allocations: 0.9777 MB / 441.9 MB, free: 232 kB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001763/0.3196, allocations: 1.672 MB / 443.6 MB, free: 14.54 MB / 366.1 MB Notification: Performance of NFConvertDAE.convert: time 0.004872/0.3245, allocations: 4.768 MB / 448.4 MB, free: 9.758 MB / 366.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.239e-06/0.3245, allocations: 0 / 448.4 MB, free: 9.758 MB / 366.1 MB Notification: Performance of FrontEnd: time 1.463e-06/0.3245, allocations: 0 / 448.4 MB, free: 9.758 MB / 366.1 MB Notification: Performance of Transformations before backend: time 0.0001109/0.3247, allocations: 0 / 448.4 MB, free: 9.758 MB / 366.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 617 * Number of variables: 617 Notification: Performance of Generate backend data structure: time 0.006961/0.3316, allocations: 3.523 MB / 451.9 MB, free: 6.164 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.467e-05/0.3317, allocations: 12.03 kB / 451.9 MB, free: 6.152 MB / 366.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0004221/0.3321, allocations: 337.9 kB / 452.2 MB, free: 5.812 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00136/0.3335, allocations: 442.7 kB / 452.7 MB, free: 5.379 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00315/0.3367, allocations: 1.771 MB / 454.4 MB, free: 3.555 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001197/0.3368, allocations: 192.7 kB / 454.6 MB, free: 3.363 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003629/0.3372, allocations: 244 kB / 454.9 MB, free: 3.125 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00476/0.3419, allocations: 3.057 MB / 457.9 MB, free: 15.95 MB / 382.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 6.834e-05/0.342, allocations: 4 kB / 457.9 MB, free: 15.95 MB / 382.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000217/0.3422, allocations: 107.9 kB / 458 MB, free: 15.84 MB / 382.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.468e-05/0.3423, allocations: 104.6 kB / 458.1 MB, free: 15.73 MB / 382.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004198/0.3465, allocations: 2.536 MB / 460.7 MB, free: 13.18 MB / 382.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01534/0.3619, allocations: 10.16 MB / 470.8 MB, free: 2.715 MB / 382.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.003097/0.3651, allocations: 2.726 MB / 473.5 MB, free: 15.81 MB / 398.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001785/0.3669, allocations: 1.227 MB / 474.8 MB, free: 14.59 MB / 398.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0002402/0.3671, allocations: 134.9 kB / 474.9 MB, free: 14.44 MB / 398.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.139e-05/0.3672, allocations: 51.75 kB / 475 MB, free: 14.38 MB / 398.1 MB Notification: Performance of pre-optimization done (n=149): time 2.825e-06/0.3672, allocations: 0 / 475 MB, free: 14.38 MB / 398.1 MB Notification: Performance of matching and sorting (n=166): time 0.01661/0.3838, allocations: 8.06 MB / 483 MB, free: 6.16 MB / 398.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 9.848e-05/0.3839, allocations: 205.2 kB / 483.2 MB, free: 5.914 MB / 398.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002676/0.3866, allocations: 1.87 MB / 485.1 MB, free: 4 MB / 398.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0001663/0.3868, allocations: 53.7 kB / 485.1 MB, free: 3.941 MB / 398.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0008061/0.3876, allocations: 1.195 MB / 486.3 MB, free: 2.734 MB / 398.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0004393/0.3881, allocations: 0.581 MB / 486.9 MB, free: 2.148 MB / 398.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004957/0.3886, allocations: 335.5 kB / 487.2 MB, free: 1.816 MB / 398.1 MB Notification: Performance of setup shared object (initialization): time 8.775e-05/0.3887, allocations: 309.1 kB / 487.5 MB, free: 1.512 MB / 398.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001288/0.3899, allocations: 0.8753 MB / 488.4 MB, free: 0.6328 MB / 398.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001557/0.3915, allocations: 1.327 MB / 489.7 MB, free: 15.11 MB / 414.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002805/0.3943, allocations: 2.262 MB / 492 MB, free: 12.69 MB / 414.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.222e-05/0.3944, allocations: 4 kB / 492 MB, free: 12.68 MB / 414.1 MB Notification: Performance of matching and sorting (n=242) (initialization): time 0.005133/0.3995, allocations: 3.161 MB / 495.2 MB, free: 9.48 MB / 414.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.772e-05/0.3995, allocations: 12.06 kB / 495.2 MB, free: 9.469 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.979e-05/0.3996, allocations: 12 kB / 495.2 MB, free: 9.457 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001833/0.4014, allocations: 0.7957 MB / 496 MB, free: 8.645 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00129/0.4027, allocations: 359.5 kB / 496.3 MB, free: 8.293 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01253/0.4153, allocations: 13 MB / 0.4974 GB, free: 10.59 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0019/0.4172, allocations: 107.9 kB / 0.4975 GB, free: 10.48 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001786/0.4174, allocations: 75.98 kB / 0.4976 GB, free: 10.41 MB / 430.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002392/0.4198, allocations: 1.468 MB / 0.499 GB, free: 8.934 MB / 430.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001469/0.4213, allocations: 1.316 MB / 0.5003 GB, free: 7.438 MB / 430.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002822/0.4241, allocations: 2.231 MB / 0.5025 GB, free: 5.039 MB / 430.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.022e-05/0.4241, allocations: 7.938 kB / 0.5025 GB, free: 5.031 MB / 430.1 MB Notification: Performance of matching and sorting (n=242) (initialization_lambda0): time 0.005269/0.4294, allocations: 3.146 MB / 0.5056 GB, free: 1.84 MB / 430.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.12e-05/0.4294, allocations: 11.94 kB / 0.5056 GB, free: 1.828 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.163e-05/0.4295, allocations: 16.34 kB / 0.5056 GB, free: 1.812 MB / 430.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001832/0.4313, allocations: 0.7884 MB / 0.5064 GB, free: 1.008 MB / 430.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001279/0.4326, allocations: 363.5 kB / 0.5067 GB, free: 0.6523 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01291/0.4455, allocations: 13 MB / 0.5194 GB, free: 2.965 MB / 446.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001779/0.4473, allocations: 100 kB / 0.5195 GB, free: 2.867 MB / 446.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002639/0.4476, allocations: 75.94 kB / 0.5196 GB, free: 2.793 MB / 446.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 55 * Number of states: 0 () * Number of discrete variables: 7 (idealDiode2.idealDiode[3].off,idealDiode2.idealDiode[2].off,idealDiode2.idealDiode[1].off,idealDiode1.idealDiode[3].off,idealDiode1.idealDiode[2].off,idealDiode1.idealDiode[1].off,voltageController.I.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (191): * Single equations (assignments): 183 * Array equations: 1 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * 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): 1 system {(2,100.0%)} * 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): 2 systems {(3,16,100.0%), (1,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(2,7), (2,7), (2,7)} Notification: Performance of prepare postOptimizeDAE: time 0.0005254/0.4482, allocations: 303.7 kB / 0.5199 GB, free: 2.488 MB / 446.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006218/0.4488, allocations: 226.6 kB / 0.5201 GB, free: 2.266 MB / 446.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004987/0.4538, allocations: 2.868 MB / 0.5229 GB, free: 15.35 MB / 462.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.535e-05/0.4538, allocations: 16 kB / 0.5229 GB, free: 15.33 MB / 462.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.331e-05/0.4538, allocations: 4 kB / 0.5229 GB, free: 15.33 MB / 462.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.454e-05/0.4539, allocations: 11.97 kB / 0.5229 GB, free: 15.32 MB / 462.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01003/0.4639, allocations: 5.659 MB / 0.5284 GB, free: 9.5 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.618e-06/0.4639, allocations: 4 kB / 0.5284 GB, free: 9.496 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009779/0.4649, allocations: 227.7 kB / 0.5287 GB, free: 9.273 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002107/0.467, allocations: 0.8326 MB / 0.5295 GB, free: 8.422 MB / 462.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000135/0.4672, allocations: 43.98 kB / 0.5295 GB, free: 8.379 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.2168/0.684, allocations: 14.58 MB / 0.5437 GB, free: 118.6 MB / 462.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.31e-06/0.684, allocations: 8.625 kB / 0.5438 GB, free: 118.6 MB / 462.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005222/0.6893, allocations: 4.063 MB / 0.5477 GB, free: 117.2 MB / 462.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.001074/0.6904, allocations: 490.4 kB / 0.5482 GB, free: 117.1 MB / 462.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002976/0.6907, allocations: 42.33 kB / 0.5482 GB, free: 117 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001073/0.6918, allocations: 94.09 kB / 0.5483 GB, free: 117 MB / 462.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003176/0.6921, allocations: 137.7 kB / 0.5484 GB, free: 117 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.343e-05/0.6922, allocations: 50.41 kB / 0.5485 GB, free: 117 MB / 462.1 MB Notification: Performance of sorting global known variables: time 0.001785/0.694, allocations: 1.281 MB / 0.5497 GB, free: 116.5 MB / 462.1 MB Notification: Performance of sort global known variables: time 1.2e-07/0.694, allocations: 0 / 0.5497 GB, free: 116.5 MB / 462.1 MB Notification: Performance of remove unused functions: time 0.003474/0.6975, allocations: 1.078 MB / 0.5508 GB, free: 116.4 MB / 462.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 12 (smee.idq_sr[1],smee.idq_sr[2],smee.idq_rr[1],smee.idq_rr[2],smee.idq_dr[1],speed.phi,speed.w,voltageController.I.y,capacitor1.v,capacitor2.v,filter.x[1],filter.x[2]) * Number of discrete variables: 6 (idealDiode1.idealDiode[1].off,idealDiode1.idealDiode[2].off,idealDiode1.idealDiode[3].off,idealDiode2.idealDiode[1].off,idealDiode2.idealDiode[2].off,idealDiode2.idealDiode[3].off) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (120): * Single equations (assignments): 114 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 3 systems {(3,16,100.0%), (1,6,100.0%), (2,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(2,7), (2,7), (2,7)} Notification: Performance of Backend phase and start with SimCode phase: time 0.005282/0.7027, allocations: 4.756 MB / 0.5554 GB, free: 114.1 MB / 462.1 MB Notification: Performance of simCode: created initialization part: time 0.006627/0.7094, allocations: 5.319 MB / 0.5606 GB, free: 109.6 MB / 462.1 MB Notification: Performance of simCode: created event and clocks part: time 8.075e-06/0.7094, allocations: 0 / 0.5606 GB, free: 109.6 MB / 462.1 MB Notification: Performance of simCode: created simulation system equations: time 0.002546/0.712, allocations: 2.095 MB / 0.5627 GB, free: 107.7 MB / 462.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002755/0.7148, allocations: 0.6008 MB / 0.5633 GB, free: 107.2 MB / 462.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02533/0.7401, allocations: 21.56 MB / 0.5843 GB, free: 85.72 MB / 462.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001203/0.7413, allocations: 1.981 MB / 0.5863 GB, free: 83.7 MB / 462.1 MB Notification: Performance of simCode: alias equations: time 0.001437/0.7428, allocations: 0.4895 MB / 0.5867 GB, free: 83.21 MB / 462.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0009879/0.7438, allocations: 0.9953 MB / 0.5877 GB, free: 82.21 MB / 462.1 MB Notification: Performance of SimCode: time 1.432e-06/0.7438, allocations: 0 / 0.5877 GB, free: 82.21 MB / 462.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1053/0.8491, allocations: 65.23 MB / 0.6514 GB, free: 17.55 MB / 462.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 15.98/16.83, allocations: 11.92 kB / 0.6514 GB, free: 17.54 MB / 462.1 MB (rm -f Modelica_trunk_Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier.pipe ; mkfifo Modelica_trunk_Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier.pipe ; head -c 1048576 < Modelica_trunk_Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier.pipe >> ../files/Modelica_trunk_Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier.sim & python3 -m fmpy simulate --output-file Modelica_trunk_Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier_res.csv --start-time 0 --stop-time 1.1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0001 Modelica_trunk_Modelica_Electrical_Machines_Examples_SynchronousMachines_SMEE_Rectifier.fmu > Modelica_trunk_Modelica.Electrical.Machines.Examples.SynchronousMachines.SMEE_Rectifier.pipe 2>&1)