Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ScalableTestSuite_ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80.conf.json 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/ScalableTestSuite 2.2.0-master/package.mo", uses=false) Using package ScalableTestSuite with version 2.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/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) Running command: "" <> buildModelFMU(ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80,fileNamePrefix="ScalableTestSuite_ScalableTestSuite_Electrical_TransmissionLine_ScaledExperiments_TransmissionLineModelica_N_80",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80,fileNamePrefix="ScalableTestSuite_ScalableTestSuite_Electrical_TransmissionLine_ScaledExperiments_TransmissionLineModelica_N_80",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001126/0.001126, allocations: 180.9 kB / 16.39 MB, free: 5.766 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.378/1.378, allocations: 223.2 MB / 240.3 MB, free: 10.15 MB / 202.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001033/0.001033, allocations: 93.33 kB / 291.5 MB, free: 10.68 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/package.mo): time 0.767/0.767, allocations: 120.5 MB / 463 MB, free: 8.695 MB / 346.7 MB Notification: Performance of FrontEnd - loaded program: time 0.0002848/0.0002849, allocations: 8 kB / 0.5447 GB, free: 41.05 MB / 394.8 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1636/0.1639, allocations: 82.86 MB / 0.6256 GB, free: 7.781 MB / 442.8 MB Notification: Performance of FrontEnd - scodeFlatten: time 0.7496/0.9135, allocations: 128.6 MB / 0.7513 GB, free: 5.734 MB / 0.5107 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002285/0.9138, allocations: 73.08 kB / 0.7513 GB, free: 5.695 MB / 0.5107 GB Notification: Performance of FrontEnd - DAE generated: time 0.3262/1.24, allocations: 116.2 MB / 0.8648 GB, free: 1.754 MB / 0.6044 GB Notification: Performance of FrontEnd: time 2.635e-06/1.24, allocations: 4 kB / 0.8648 GB, free: 1.75 MB / 0.6044 GB Notification: Performance of Transformations before backend: time 0.0007571/1.241, allocations: 152 kB / 0.865 GB, free: 1.602 MB / 0.6044 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1715 * Number of variables: 1715 Notification: Performance of Generate backend data structure: time 0.03004/1.271, allocations: 9.159 MB / 0.8739 GB, free: 8.824 MB / 0.62 GB Notification: Performance of prepare preOptimizeDAE: time 6.273e-05/1.271, allocations: 8.031 kB / 0.8739 GB, free: 8.816 MB / 0.62 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.004891/1.276, allocations: 0.9216 MB / 0.8748 GB, free: 8.309 MB / 0.62 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005182/1.281, allocations: 0.7611 MB / 0.8756 GB, free: 7.539 MB / 0.62 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01286/1.294, allocations: 3.838 MB / 0.8793 GB, free: 4.664 MB / 0.62 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006906/1.295, allocations: 0.5229 MB / 0.8798 GB, free: 4.367 MB / 0.62 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.003501/1.298, allocations: 0.7613 MB / 0.8806 GB, free: 3.852 MB / 0.62 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02652/1.325, allocations: 8.814 MB / 0.8892 GB, free: 14.02 MB / 0.6357 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0003578/1.325, allocations: 7.891 kB / 0.8892 GB, free: 14.01 MB / 0.6357 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00265/1.328, allocations: 295 kB / 0.8895 GB, free: 13.94 MB / 0.6357 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001653/1.328, allocations: 167.9 kB / 0.8896 GB, free: 13.78 MB / 0.6357 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02224/1.35, allocations: 8.601 MB / 0.898 GB, free: 8.074 MB / 0.6357 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0867/1.437, allocations: 32.21 MB / 0.9295 GB, free: 15.21 MB / 0.6669 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01374/1.451, allocations: 7.742 MB / 0.9371 GB, free: 8.617 MB / 0.6669 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004799/1.451, allocations: 56.44 kB / 0.9371 GB, free: 8.559 MB / 0.6669 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0001533/1.452, allocations: 115.6 kB / 0.9372 GB, free: 8.43 MB / 0.6669 GB Notification: Performance of pre-optimization done (n=566): time 1.502e-05/1.452, allocations: 0 / 0.9372 GB, free: 8.43 MB / 0.6669 GB Notification: Performance of matching and sorting (n=566): time 0.6683/2.12, allocations: 9.035 MB / 0.946 GB, free: 160.8 MB / 0.6671 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.486e-05/2.12, allocations: 110.6 kB / 0.9462 GB, free: 160.7 MB / 0.6671 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006163/2.126, allocations: 3.921 MB / 0.95 GB, free: 160.5 MB / 0.6671 GB Notification: Performance of collectPreVariables (initialization): time 0.00121/2.128, allocations: 153.1 kB / 0.9501 GB, free: 160.5 MB / 0.6671 GB Notification: Performance of collectInitialEqns (initialization): time 0.001438/2.129, allocations: 2.348 MB / 0.9524 GB, free: 160.1 MB / 0.6671 GB Notification: Performance of collectInitialBindings (initialization): time 0.001774/2.131, allocations: 2.072 MB / 0.9544 GB, free: 159 MB / 0.6671 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003308/2.131, allocations: 131.4 kB / 0.9546 GB, free: 159 MB / 0.6671 GB Notification: Performance of setup shared object (initialization): time 0.0002895/2.131, allocations: 0.5619 MB / 0.9551 GB, free: 158.7 MB / 0.6671 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005346/2.137, allocations: 3.539 MB / 0.9586 GB, free: 158.7 MB / 0.6671 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005777/2.143, allocations: 3.987 MB / 0.9625 GB, free: 158.5 MB / 0.6671 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00557/2.148, allocations: 4.253 MB / 0.9666 GB, free: 158.5 MB / 0.6671 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.28e-05/2.148, allocations: 1.375 kB / 0.9666 GB, free: 158.5 MB / 0.6671 GB Notification: Performance of matching and sorting (n=813) (initialization): time 0.01089/2.159, allocations: 8.845 MB / 0.9753 GB, free: 158 MB / 0.6671 GB Notification: Performance of prepare postOptimizeDAE: time 2.947e-05/2.159, allocations: 3.906 kB / 0.9753 GB, free: 158 MB / 0.6671 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.877e-05/2.159, allocations: 3.438 kB / 0.9753 GB, free: 158 MB / 0.6671 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.907e-05/2.159, allocations: 25.47 kB / 0.9753 GB, free: 158 MB / 0.6671 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006077/2.165, allocations: 1.965 MB / 0.9772 GB, free: 157.9 MB / 0.6671 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.378e-05/2.165, allocations: 29.5 kB / 0.9772 GB, free: 157.9 MB / 0.6671 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003906/2.169, allocations: 0.7281 MB / 0.9779 GB, free: 157.7 MB / 0.6671 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003461/2.17, allocations: 177.5 kB / 0.9781 GB, free: 157.7 MB / 0.6671 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 5 * 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 (813): * Single equations (assignments): 813 * 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 0.003594/2.173, allocations: 2.212 MB / 0.9803 GB, free: 157.5 MB / 0.6671 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001329/2.175, allocations: 456.6 kB / 0.9807 GB, free: 157.3 MB / 0.6671 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001411/2.176, allocations: 0.6334 MB / 0.9813 GB, free: 157.2 MB / 0.6671 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.538e-05/2.176, allocations: 52.31 kB / 0.9814 GB, free: 157.2 MB / 0.6671 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.919e-05/2.176, allocations: 2.953 kB / 0.9814 GB, free: 157.2 MB / 0.6671 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.726e-05/2.176, allocations: 33.52 kB / 0.9814 GB, free: 157.2 MB / 0.6671 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.008992/2.185, allocations: 7.251 MB / 0.9885 GB, free: 156.6 MB / 0.6671 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.276e-05/2.185, allocations: 3.781 kB / 0.9885 GB, free: 156.6 MB / 0.6671 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.007221/2.192, allocations: 1.804 MB / 0.9903 GB, free: 156.4 MB / 0.6671 GB Notification: Performance of postOpt tearingSystem (simulation): time 7.832e-05/2.193, allocations: 18.94 kB / 0.9903 GB, free: 156.4 MB / 0.6671 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007998/2.193, allocations: 229.8 kB / 0.9905 GB, free: 156.3 MB / 0.6671 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.095e-05/2.193, allocations: 21.91 kB / 0.9905 GB, free: 156.3 MB / 0.6671 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.855e-06/2.193, allocations: 1.5 kB / 0.9905 GB, free: 156.3 MB / 0.6671 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01155/2.205, allocations: 10.43 MB / 1.001 GB, free: 152.3 MB / 0.6671 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001772/2.207, allocations: 0.7068 MB / 1.001 GB, free: 151.8 MB / 0.6671 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0009543/2.208, allocations: 216.4 kB / 1.002 GB, free: 151.7 MB / 0.6671 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003732/2.211, allocations: 0.7145 MB / 1.002 GB, free: 151.6 MB / 0.6671 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004905/2.212, allocations: 302.2 kB / 1.003 GB, free: 151.6 MB / 0.6671 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003288/2.212, allocations: 155.2 kB / 1.003 GB, free: 151.5 MB / 0.6671 GB Notification: Performance of sorting global known variables: time 0.003185/2.215, allocations: 3.02 MB / 1.006 GB, free: 150.4 MB / 0.6671 GB Notification: Performance of sort global known variables: time 1.71e-07/2.215, allocations: 0 / 1.006 GB, free: 150.4 MB / 0.6671 GB Notification: Performance of remove unused functions: time 0.003212/2.219, allocations: 1.987 MB / 1.008 GB, free: 149.9 MB / 0.6671 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 162 (lowpassfilter.y,lowpassfilter.yd,transmissionline.L[1].i,transmissionline.L[2].i,transmissionline.L[3].i,transmissionline.L[4].i,transmissionline.L[5].i,transmissionline.L[6].i,transmissionline.L[7].i,transmissionline.L[8].i,transmissionline.L[9].i,transmissionline.L[10].i,transmissionline.L[11].i,transmissionline.L[12].i,transmissionline.L[13].i,transmissionline.L[14].i,transmissionline.L[15].i,transmissionline.L[16].i,transmissionline.L[17].i,transmissionline.L[18].i,transmissionline.L[19].i,transmissionline.L[20].i,transmissionline.L[21].i,transmissionline.L[22].i,transmissionline.L[23].i,transmissionline.L[24].i,transmissionline.L[25].i,transmissionline.L[26].i,transmissionline.L[27].i,transmissionline.L[28].i,transmissionline.L[29].i,transmissionline.L[30].i,transmissionline.L[31].i,transmissionline.L[32].i,transmissionline.L[33].i,transmissionline.L[34].i,transmissionline.L[35].i,transmissionline.L[36].i,transmissionline.L[37].i,transmissionline.L[38].i,transmissionline.L[39].i,transmissionline.L[40].i,transmissionline.L[41].i,transmissionline.L[42].i,transmissionline.L[43].i,transmissionline.L[44].i,transmissionline.L[45].i,transmissionline.L[46].i,transmissionline.L[47].i,transmissionline.L[48].i,transmissionline.L[49].i,transmissionline.L[50].i,transmissionline.L[51].i,transmissionline.L[52].i,transmissionline.L[53].i,transmissionline.L[54].i,transmissionline.L[55].i,transmissionline.L[56].i,transmissionline.L[57].i,transmissionline.L[58].i,transmissionline.L[59].i,transmissionline.L[60].i,transmissionline.L[61].i,transmissionline.L[62].i,transmissionline.L[63].i,transmissionline.L[64].i,transmissionline.L[65].i,transmissionline.L[66].i,transmissionline.L[67].i,transmissionline.L[68].i,transmissionline.L[69].i,transmissionline.L[70].i,transmissionline.L[71].i,transmissionline.L[72].i,transmissionline.L[73].i,transmissionline.L[74].i,transmissionline.L[75].i,transmissionline.L[76].i,transmissionline.L[77].i,transmissionline.L[78].i,transmissionline.L[79].i,transmissionline.L[80].i,transmissionline.C[1].v,transmissionline.C[2].v,transmissionline.C[3].v,transmissionline.C[4].v,transmissionline.C[5].v,transmissionline.C[6].v,transmissionline.C[7].v,transmissionline.C[8].v,transmissionline.C[9].v,transmissionline.C[10].v,transmissionline.C[11].v,transmissionline.C[12].v,transmissionline.C[13].v,transmissionline.C[14].v,transmissionline.C[15].v,transmissionline.C[16].v,transmissionline.C[17].v,transmissionline.C[18].v,transmissionline.C[19].v,transmissionline.C[20].v,transmissionline.C[21].v,transmissionline.C[22].v,transmissionline.C[23].v,transmissionline.C[24].v,transmissionline.C[25].v,transmissionline.C[26].v,transmissionline.C[27].v,transmissionline.C[28].v,transmissionline.C[29].v,transmissionline.C[30].v,transmissionline.C[31].v,transmissionline.C[32].v,transmissionline.C[33].v,transmissionline.C[34].v,transmissionline.C[35].v,transmissionline.C[36].v,transmissionline.C[37].v,transmissionline.C[38].v,transmissionline.C[39].v,transmissionline.C[40].v,transmissionline.C[41].v,transmissionline.C[42].v,transmissionline.C[43].v,transmissionline.C[44].v,transmissionline.C[45].v,transmissionline.C[46].v,transmissionline.C[47].v,transmissionline.C[48].v,transmissionline.C[49].v,transmissionline.C[50].v,transmissionline.C[51].v,transmissionline.C[52].v,transmissionline.C[53].v,transmissionline.C[54].v,transmissionline.C[55].v,transmissionline.C[56].v,transmissionline.C[57].v,transmissionline.C[58].v,transmissionline.C[59].v,transmissionline.C[60].v,transmissionline.C[61].v,transmissionline.C[62].v,transmissionline.C[63].v,transmissionline.C[64].v,transmissionline.C[65].v,transmissionline.C[66].v,transmissionline.C[67].v,transmissionline.C[68].v,transmissionline.C[69].v,transmissionline.C[70].v,transmissionline.C[71].v,transmissionline.C[72].v,transmissionline.C[73].v,transmissionline.C[74].v,transmissionline.C[75].v,transmissionline.C[76].v,transmissionline.C[77].v,transmissionline.C[78].v,transmissionline.C[79].v,transmissionline.C[80].v) * 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 (566): * Single equations (assignments): 566 * 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 Backend phase and start with SimCode phase: time 0.01091/2.23, allocations: 11.32 MB / 1.019 GB, free: 145.2 MB / 0.6671 GB Notification: Performance of simCode: created initialization part: time 0.008248/2.238, allocations: 7.436 MB / 1.026 GB, free: 142.7 MB / 0.6671 GB Notification: Performance of simCode: created event and clocks part: time 7.925e-06/2.238, allocations: 4.281 kB / 1.026 GB, free: 142.7 MB / 0.6671 GB Notification: Performance of simCode: created simulation system equations: time 0.003326/2.241, allocations: 3.42 MB / 1.029 GB, free: 141.6 MB / 0.6671 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00361/2.245, allocations: 0.9137 MB / 1.03 GB, free: 141.3 MB / 0.6671 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1007/2.346, allocations: 61.07 MB / 1.09 GB, free: 96.35 MB / 0.6671 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004872/2.351, allocations: 4.764 MB / 1.094 GB, free: 92.76 MB / 0.6671 GB Notification: Performance of simCode: alias equations: time 0.006641/2.357, allocations: 2.602 MB / 1.097 GB, free: 90.92 MB / 0.6671 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00343/2.361, allocations: 2.401 MB / 1.099 GB, free: 88.73 MB / 0.6671 GB Notification: Performance of SimCode: time 9.468e-06/2.361, allocations: 0 / 1.099 GB, free: 88.73 MB / 0.6671 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.4075/2.768, allocations: 117.2 MB / 1.214 GB, free: 147.9 MB / 0.6828 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001412/2.768, allocations: 231.7 kB / 1.214 GB, free: 147.7 MB / 0.6828 GB Notification: Performance of buildModelFMU: Generate platform static: time 4.764/7.532, allocations: 3.938 kB / 1.214 GB, free: 147.7 MB / 0.6828 GB (rm -f ScalableTestSuite_ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80.pipe ; mkfifo ScalableTestSuite_ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80.pipe ; head -c 1048576 < ScalableTestSuite_ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80.pipe >> ../files/ScalableTestSuite_ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator -r=ScalableTestSuite_ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80_res.mat --tempDir=temp_ScalableTestSuite_ScalableTestSuite_Electrical_TransmissionLine_ScaledExperiments_TransmissionLineModelica_N_80_fmu --startTime=0 --stopTime=4e-06 --timeout=300 --tolerance=1e-08 ScalableTestSuite_ScalableTestSuite_Electrical_TransmissionLine_ScaledExperiments_TransmissionLineModelica_N_80.fmu > ScalableTestSuite_ScalableTestSuite.Electrical.TransmissionLine.ScaledExperiments.TransmissionLineModelica_N_80.pipe 2>&1)