Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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) Running command: "" <> buildModelFMU(IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear,fileNamePrefix="IDEAS_IDEAS_Fluid_Movers_Validation_SpeedControlled_y_linear",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear,fileNamePrefix="IDEAS_IDEAS_Fluid_Movers_Validation_SpeedControlled_y_linear",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 0.006038/0.006038, allocations: 100.1 kB / 15.73 MB, free: 6.008 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001233/0.001233, allocations: 196.5 kB / 16.68 MB, free: 5.93 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.321/1.321, allocations: 222.9 MB / 240.4 MB, free: 15.15 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7605/0.7605, allocations: 132.2 MB / 422.7 MB, free: 6.566 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001173/0.001173, allocations: 66.41 kB / 0.5808 GB, free: 23.99 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1441/0.1453, allocations: 80.22 MB / 0.6592 GB, free: 10.72 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear): time 0.05417/0.1995, allocations: 57.77 MB / 0.7156 GB, free: 0.7461 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.02325/0.2228, allocations: 17.88 MB / 0.7331 GB, free: 14.82 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002857/0.2257, allocations: 83.5 kB / 0.7332 GB, free: 14.74 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.002789/0.2285, allocations: 1.173 MB / 0.7343 GB, free: 13.56 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.006769/0.2353, allocations: 2.784 MB / 0.737 GB, free: 10.77 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.005022/0.2403, allocations: 2.254 MB / 0.7392 GB, free: 8.531 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.005707/0.2461, allocations: 4.761 MB / 0.7439 GB, free: 3.758 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002173/0.2482, allocations: 1.75 MB / 0.7456 GB, free: 1.969 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.368/0.6162, allocations: 2.005 MB / 0.7475 GB, free: 7.773 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003157/0.6194, allocations: 1.41 MB / 0.7489 GB, free: 7.773 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0006966/0.6201, allocations: 186.6 kB / 0.7491 GB, free: 7.773 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004674/0.6248, allocations: 2.002 MB / 0.751 GB, free: 7.773 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0008494/0.6257, allocations: 0.6069 MB / 0.7516 GB, free: 7.773 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.001728/0.6274, allocations: 1.074 MB / 0.7527 GB, free: 7.598 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.007371/0.6348, allocations: 3.672 MB / 0.7563 GB, free: 7.25 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 5.551e-06/0.6348, allocations: 1.938 kB / 0.7563 GB, free: 7.25 MB / 0.5762 GB Notification: Performance of FrontEnd: time 1.774e-06/0.6349, allocations: 0.5938 kB / 0.7563 GB, free: 7.25 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 6.05e-05/0.6349, allocations: 1.312 kB / 0.7563 GB, free: 7.25 MB / 0.5762 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 262 * Number of variables: 262 Notification: Performance of Generate backend data structure: time 0.005954/0.6409, allocations: 2.503 MB / 0.7587 GB, free: 6.008 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 5.521e-05/0.641, allocations: 10.12 kB / 0.7587 GB, free: 6.008 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002672/0.6412, allocations: 162.8 kB / 0.7589 GB, free: 5.965 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003385/0.6446, allocations: 0.5715 MB / 0.7594 GB, free: 5.844 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004745/0.6494, allocations: 1.913 MB / 0.7613 GB, free: 5.332 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.616e-05/0.6495, allocations: 84.06 kB / 0.7614 GB, free: 5.328 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001937/0.6497, allocations: 113.1 kB / 0.7615 GB, free: 5.328 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002499/0.6522, allocations: 1.279 MB / 0.7627 GB, free: 5.133 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.581e-05/0.6522, allocations: 1.375 kB / 0.7627 GB, free: 5.133 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001654/0.6524, allocations: 41.31 kB / 0.7628 GB, free: 5.133 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.276e-05/0.6524, allocations: 24.75 kB / 0.7628 GB, free: 5.133 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002173/0.6546, allocations: 0.9693 MB / 0.7638 GB, free: 5.117 MB / 0.5762 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.008031/0.6626, allocations: 5.998 MB / 0.7696 GB, free: 17.98 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001968/0.6646, allocations: 0.7217 MB / 0.7703 GB, free: 17.95 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007764/0.6654, allocations: 373.4 kB / 0.7707 GB, free: 17.93 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.003141/0.6686, allocations: 2.441 MB / 0.7731 GB, free: 16.3 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.31e-05/0.6686, allocations: 41.83 kB / 0.7731 GB, free: 16.26 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=56): time 2.073e-06/0.6686, allocations: 0 / 0.7731 GB, free: 16.26 MB / 0.5919 GB Notification: Performance of matching and sorting (n=56): time 0.003555/0.6722, allocations: 1.247 MB / 0.7743 GB, free: 16 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.238e-05/0.6722, allocations: 60.34 kB / 0.7744 GB, free: 15.94 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0022/0.6744, allocations: 1.593 MB / 0.7759 GB, free: 15.71 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 7.885e-05/0.6745, allocations: 44.47 kB / 0.776 GB, free: 15.68 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005905/0.6751, allocations: 0.818 MB / 0.7768 GB, free: 15.43 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001636/0.6753, allocations: 204.6 kB / 0.777 GB, free: 15.3 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003314/0.6756, allocations: 208.2 kB / 0.7772 GB, free: 15.28 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0001242/0.6758, allocations: 339.7 kB / 0.7775 GB, free: 14.97 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009379/0.6767, allocations: 433 kB / 0.7779 GB, free: 14.96 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001106/0.6778, allocations: 0.7354 MB / 0.7786 GB, free: 14.59 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001932/0.6798, allocations: 1.105 MB / 0.7797 GB, free: 14.27 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.853e-06/0.6798, allocations: 2.75 kB / 0.7797 GB, free: 14.27 MB / 0.5919 GB Notification: Performance of matching and sorting (n=104) (initialization): time 0.002933/0.6827, allocations: 1.361 MB / 0.781 GB, free: 14.11 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 2.559e-05/0.6828, allocations: 8.5 kB / 0.781 GB, free: 14.11 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.53e-05/0.6828, allocations: 7.156 kB / 0.781 GB, free: 14.11 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004353/0.6832, allocations: 104.9 kB / 0.7811 GB, free: 14.1 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008438/0.6841, allocations: 222.1 kB / 0.7814 GB, free: 14.1 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004998/0.6846, allocations: 0.613 MB / 0.782 GB, free: 13.58 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001333/0.6859, allocations: 133.2 kB / 0.7821 GB, free: 13.52 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001337/0.6861, allocations: 61.56 kB / 0.7821 GB, free: 13.52 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001421/0.6875, allocations: 0.689 MB / 0.7828 GB, free: 13.44 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0008939/0.6884, allocations: 0.6702 MB / 0.7835 GB, free: 13.07 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001417/0.6898, allocations: 0.9709 MB / 0.7844 GB, free: 12.75 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.937e-06/0.6898, allocations: 0 / 0.7844 GB, free: 12.75 MB / 0.5919 GB Notification: Performance of matching and sorting (n=104) (initialization_lambda0): time 0.002619/0.6925, allocations: 1.233 MB / 0.7856 GB, free: 12.6 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 1.969e-05/0.6925, allocations: 12 kB / 0.7856 GB, free: 12.6 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.272e-05/0.6925, allocations: 12.41 kB / 0.7856 GB, free: 12.6 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005022/0.693, allocations: 128.2 kB / 0.7858 GB, free: 12.59 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007259/0.6938, allocations: 201.3 kB / 0.786 GB, free: 12.59 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003992/0.6978, allocations: 2.882 MB / 0.7888 GB, free: 10.63 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001232/0.699, allocations: 91.31 kB / 0.7889 GB, free: 10.61 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.128e-05/0.6991, allocations: 60.36 kB / 0.7889 GB, free: 10.6 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 37 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (98): * Single equations (assignments): 95 * Array equations: 2 * Algorithm blocks: 0 * 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 prepare postOptimizeDAE: time 0.0003417/0.6995, allocations: 246.4 kB / 0.7892 GB, free: 10.41 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002462/0.6997, allocations: 165.4 kB / 0.7893 GB, free: 10.32 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002593/0.7023, allocations: 1.208 MB / 0.7905 GB, free: 10.21 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.916e-05/0.7024, allocations: 8.844 kB / 0.7905 GB, free: 10.21 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.971e-06/0.7024, allocations: 6.938 kB / 0.7905 GB, free: 10.21 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.876e-06/0.7024, allocations: 4.172 kB / 0.7905 GB, free: 10.21 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003942/0.7063, allocations: 2.445 MB / 0.7929 GB, free: 9.762 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.374e-06/0.7064, allocations: 6.656 kB / 0.7929 GB, free: 9.758 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005873/0.707, allocations: 131.2 kB / 0.793 GB, free: 9.758 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002291/0.7072, allocations: 74.41 kB / 0.7931 GB, free: 9.742 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.072e-05/0.7073, allocations: 26.45 kB / 0.7931 GB, free: 9.742 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0003747/0.7076, allocations: 0.6069 MB / 0.7937 GB, free: 9.215 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.234e-06/0.7077, allocations: 0 / 0.7937 GB, free: 9.215 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002084/0.7097, allocations: 1.172 MB / 0.7949 GB, free: 8.883 MB / 0.5919 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006481/0.7104, allocations: 347.3 kB / 0.7952 GB, free: 8.684 MB / 0.5919 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001631/0.7106, allocations: 16.72 kB / 0.7952 GB, free: 8.684 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007169/0.7113, allocations: 50.17 kB / 0.7953 GB, free: 8.676 MB / 0.5919 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.128e-05/0.7114, allocations: 53.41 kB / 0.7953 GB, free: 8.676 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.167e-05/0.7115, allocations: 32.97 kB / 0.7953 GB, free: 8.676 MB / 0.5919 GB Notification: Performance of sorting global known variables: time 0.001332/0.7128, allocations: 1.086 MB / 0.7964 GB, free: 8.531 MB / 0.5919 GB Notification: Performance of sort global known variables: time 1.7e-07/0.7128, allocations: 0 / 0.7964 GB, free: 8.531 MB / 0.5919 GB Notification: Performance of remove unused functions: time 0.00274/0.7156, allocations: 0.9243 MB / 0.7973 GB, free: 8.391 MB / 0.5919 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (67): * Single equations (assignments): 58 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 8 * 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 {(1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.00375/0.7193, allocations: 2.225 MB / 0.7995 GB, free: 7.434 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.003421/0.7228, allocations: 1.643 MB / 0.8011 GB, free: 7.281 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 4.519e-06/0.7228, allocations: 0 / 0.8011 GB, free: 7.281 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.0008808/0.7237, allocations: 455.2 kB / 0.8015 GB, free: 7.223 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003057/0.7267, allocations: 0.8401 MB / 0.8023 GB, free: 6.969 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01897/0.7457, allocations: 12 MB / 0.8141 GB, free: 56 kB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001005/0.7468, allocations: 1.389 MB / 0.8154 GB, free: 14.64 MB / 0.6075 GB Notification: Performance of simCode: alias equations: time 0.001697/0.7485, allocations: 446.5 kB / 0.8158 GB, free: 14.21 MB / 0.6075 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008428/0.7493, allocations: 0.714 MB / 0.8165 GB, free: 13.5 MB / 0.6075 GB Notification: Performance of SimCode: time 7.61e-07/0.7493, allocations: 0 / 0.8165 GB, free: 13.5 MB / 0.6075 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.08913/0.8385, allocations: 50.84 MB / 0.8662 GB, free: 11.27 MB / 0.6544 GB Notification: Performance of buildModelFMU: Generate platform static: time 14.45/15.29, allocations: 11.98 kB / 0.8662 GB, free: 11.26 MB / 0.6544 GB (rm -f IDEAS_IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear.pipe ; mkfifo IDEAS_IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear.pipe >> ../files/IDEAS_IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_IDEAS_Fluid_Movers_Validation_SpeedControlled_y_linear_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IDEAS_IDEAS_Fluid_Movers_Validation_SpeedControlled_y_linear.fmu > IDEAS_IDEAS.Fluid.Movers.Validation.SpeedControlled_y_linear.pipe 2>&1)