Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.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/Buildings 9.1.3-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/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(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47,fileNamePrefix="Buildings_9_Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesGlycol47",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47,fileNamePrefix="Buildings_9_Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesGlycol47",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 0.006429/0.006429, 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 0.001569/0.001569, allocations: 197.1 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 1.319/1.319, allocations: 222.9 MB / 240.4 MB, free: 15.1 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/package.mo): time 2.238/2.238, allocations: 390.3 MB / 0.6648 GB, free: 0.6602 MB / 0.5294 GB Notification: Performance of FrontEnd - loaded program: time 0.00133/0.00133, allocations: 67.89 kB / 0.9504 GB, free: 8.148 MB / 0.7325 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.881/0.8824, allocations: 140.4 MB / 1.087 GB, free: 5.145 MB / 0.8575 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47): time 0.04901/0.9314, allocations: 40.32 MB / 1.127 GB, free: 8.305 MB / 0.8887 GB Notification: Performance of NFInst.instExpressions: time 0.009281/0.9408, allocations: 4.089 MB / 1.131 GB, free: 5.418 MB / 0.8887 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001535/0.9423, allocations: 38.91 kB / 1.131 GB, free: 5.402 MB / 0.8887 GB Notification: Performance of NFTyping.typeComponents: time 0.00137/0.9438, allocations: 351.6 kB / 1.131 GB, free: 5.188 MB / 0.8887 GB Notification: Performance of NFTyping.typeBindings: time 0.00984/0.9536, allocations: 2.487 MB / 1.134 GB, free: 4.031 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.003385/0.957, allocations: 0.9286 MB / 1.135 GB, free: 3.531 MB / 0.8887 GB Notification: Performance of NFFlatten.flatten: time 0.004343/0.9614, allocations: 2.193 MB / 1.137 GB, free: 2.5 MB / 0.8887 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001262/0.9627, allocations: 0.6505 MB / 1.137 GB, free: 2.184 MB / 0.8887 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008232/0.9709, allocations: 2.361 MB / 1.14 GB, free: 1.543 MB / 0.8887 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001205/0.9721, allocations: 0.554 MB / 1.14 GB, free: 1.289 MB / 0.8887 GB Notification: Performance of NFPackage.collectConstants: time 0.0001371/0.9723, allocations: 64 kB / 1.14 GB, free: 1.285 MB / 0.8887 GB Notification: Performance of NFFlatten.collectFunctions: time 0.007062/0.9794, allocations: 3.205 MB / 1.143 GB, free: 496 kB / 0.8887 GB Notification: Performance of NFScalarize.scalarize: time 0.0003758/0.9798, allocations: 182.3 kB / 1.144 GB, free: 388 kB / 0.8887 GB Notification: Performance of NFVerifyModel.verify: time 0.0007806/0.9806, allocations: 392.6 kB / 1.144 GB, free: 152 kB / 0.8887 GB Notification: Performance of NFConvertDAE.convert: time 0.005215/0.9858, allocations: 1.829 MB / 1.146 GB, free: 15.52 MB / 0.9044 GB Notification: Performance of FrontEnd - DAE generated: time 6.092e-06/0.9858, allocations: 0 / 1.146 GB, free: 15.52 MB / 0.9044 GB Notification: Performance of FrontEnd: time 2.134e-06/0.9858, allocations: 4 kB / 1.146 GB, free: 15.51 MB / 0.9044 GB Notification: Performance of Transformations before backend: time 1.738e-05/0.9859, allocations: 1.062 kB / 1.146 GB, free: 15.51 MB / 0.9044 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 112 * Number of variables: 112 Notification: Performance of Generate backend data structure: time 0.002726/0.9886, allocations: 1.187 MB / 1.147 GB, free: 14.65 MB / 0.9044 GB Notification: Performance of prepare preOptimizeDAE: time 4.858e-05/0.9887, allocations: 9.156 kB / 1.147 GB, free: 14.65 MB / 0.9044 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001314/0.9888, allocations: 86.2 kB / 1.147 GB, free: 14.58 MB / 0.9044 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001352/0.9902, allocations: 151.4 kB / 1.147 GB, free: 14.54 MB / 0.9044 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001938/0.9921, allocations: 0.7935 MB / 1.148 GB, free: 14.05 MB / 0.9044 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.498e-05/0.9922, allocations: 36.31 kB / 1.148 GB, free: 14.04 MB / 0.9044 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.5e-05/0.9923, allocations: 46.44 kB / 1.148 GB, free: 14.02 MB / 0.9044 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001015/0.9933, allocations: 0.5179 MB / 1.148 GB, free: 13.75 MB / 0.9044 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.447e-05/0.9933, allocations: 5.188 kB / 1.148 GB, free: 13.75 MB / 0.9044 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.366e-05/0.9934, allocations: 16.84 kB / 1.148 GB, free: 13.73 MB / 0.9044 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.532e-05/0.9934, allocations: 11.69 kB / 1.148 GB, free: 13.73 MB / 0.9044 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006513/0.9941, allocations: 340.8 kB / 1.149 GB, free: 13.62 MB / 0.9044 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 0.003258/0.9973, allocations: 2.451 MB / 1.151 GB, free: 11.71 MB / 0.9044 GB Notification: Performance of preOpt comSubExp (simulation): time 0.000453/0.9978, allocations: 273.3 kB / 1.151 GB, free: 11.59 MB / 0.9044 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000214/0.998, allocations: 132.8 kB / 1.152 GB, free: 11.54 MB / 0.9044 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001022/0.9991, allocations: 1.376 MB / 1.153 GB, free: 9.93 MB / 0.9044 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.053e-05/0.9991, allocations: 41.25 kB / 1.153 GB, free: 9.883 MB / 0.9044 GB Notification: Performance of pre-optimization done (n=31): time 2.194e-06/0.9991, allocations: 0 / 1.153 GB, free: 9.883 MB / 0.9044 GB Notification: Performance of matching and sorting (n=43): time 0.004386/1.004, allocations: 1.792 MB / 1.155 GB, free: 8.859 MB / 0.9044 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.406e-05/1.004, allocations: 57.11 kB / 1.155 GB, free: 8.797 MB / 0.9044 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006288/1.004, allocations: 0.4981 MB / 1.155 GB, free: 8.566 MB / 0.9044 GB Notification: Performance of collectPreVariables (initialization): time 4.445e-05/1.004, allocations: 37.67 kB / 1.155 GB, free: 8.527 MB / 0.9044 GB Notification: Performance of collectInitialEqns (initialization): time 0.000248/1.004, allocations: 326.9 kB / 1.156 GB, free: 8.262 MB / 0.9044 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001454/1.005, allocations: 153.9 kB / 1.156 GB, free: 8.141 MB / 0.9044 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001385/1.005, allocations: 93.86 kB / 1.156 GB, free: 8.086 MB / 0.9044 GB Notification: Performance of setup shared object (initialization): time 0.0001449/1.005, allocations: 365.8 kB / 1.156 GB, free: 7.75 MB / 0.9044 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002614/1.005, allocations: 156 kB / 1.156 GB, free: 7.688 MB / 0.9044 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003327/1.006, allocations: 267.6 kB / 1.157 GB, free: 7.492 MB / 0.9044 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006306/1.006, allocations: 445 kB / 1.157 GB, free: 7.215 MB / 0.9044 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.394e-06/1.006, allocations: 5.156 kB / 1.157 GB, free: 7.211 MB / 0.9044 GB Notification: Performance of matching and sorting (n=57) (initialization): time 0.001088/1.007, allocations: 0.607 MB / 1.158 GB, free: 6.926 MB / 0.9044 GB Notification: Performance of prepare postOptimizeDAE: time 1.909e-05/1.007, allocations: 6.312 kB / 1.158 GB, free: 6.926 MB / 0.9044 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.969e-06/1.007, allocations: 4.703 kB / 1.158 GB, free: 6.926 MB / 0.9044 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0008179/1.008, allocations: 200.5 kB / 1.158 GB, free: 6.859 MB / 0.9044 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002694/1.008, allocations: 65.69 kB / 1.158 GB, free: 6.855 MB / 0.9044 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001136/1.01, allocations: 1.346 MB / 1.159 GB, free: 5.672 MB / 0.9044 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005028/1.01, allocations: 16.97 kB / 1.159 GB, free: 5.664 MB / 0.9044 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.223e-05/1.01, allocations: 23.03 kB / 1.159 GB, free: 5.66 MB / 0.9044 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000507/1.011, allocations: 317.9 kB / 1.16 GB, free: 5.477 MB / 0.9044 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0003264/1.011, allocations: 261 kB / 1.16 GB, free: 5.293 MB / 0.9044 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006491/1.012, allocations: 435.4 kB / 1.16 GB, free: 5.02 MB / 0.9044 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.176e-06/1.012, allocations: 5.375 kB / 1.16 GB, free: 5.016 MB / 0.9044 GB Notification: Performance of matching and sorting (n=57) (initialization_lambda0): time 0.001123/1.013, allocations: 0.6055 MB / 1.161 GB, free: 4.73 MB / 0.9044 GB Notification: Performance of prepare postOptimizeDAE: time 1.432e-05/1.013, allocations: 7.062 kB / 1.161 GB, free: 4.73 MB / 0.9044 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.231e-06/1.013, allocations: 3.891 kB / 1.161 GB, free: 4.73 MB / 0.9044 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007595/1.014, allocations: 199.9 kB / 1.161 GB, free: 4.664 MB / 0.9044 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002362/1.014, allocations: 70 kB / 1.161 GB, free: 4.656 MB / 0.9044 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001075/1.015, allocations: 1.35 MB / 1.162 GB, free: 3.469 MB / 0.9044 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004654/1.015, allocations: 17.45 kB / 1.162 GB, free: 3.461 MB / 0.9044 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.067e-05/1.015, allocations: 28.14 kB / 1.162 GB, free: 3.453 MB / 0.9044 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 13 * 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 (41): * Single equations (assignments): 39 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(2,8), (1,7)} Notification: Performance of prepare postOptimizeDAE: time 0.0002151/1.016, allocations: 214.8 kB / 1.163 GB, free: 3.246 MB / 0.9044 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001411/1.016, allocations: 62.53 kB / 1.163 GB, free: 3.215 MB / 0.9044 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001393/1.017, allocations: 0.6291 MB / 1.163 GB, free: 2.934 MB / 0.9044 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.314e-05/1.017, allocations: 4.984 kB / 1.163 GB, free: 2.934 MB / 0.9044 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.36e-06/1.017, allocations: 3.938 kB / 1.163 GB, free: 2.93 MB / 0.9044 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0009951/1.018, allocations: 0.6502 MB / 1.164 GB, free: 2.5 MB / 0.9044 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0026/1.021, allocations: 1.458 MB / 1.165 GB, free: 1.484 MB / 0.9044 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.561e-06/1.021, allocations: 0 / 1.165 GB, free: 1.484 MB / 0.9044 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001849/1.021, allocations: 54.94 kB / 1.165 GB, free: 1.469 MB / 0.9044 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001006/1.022, allocations: 220.1 kB / 1.166 GB, free: 1.355 MB / 0.9044 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.675e-05/1.022, allocations: 13.28 kB / 1.166 GB, free: 1.348 MB / 0.9044 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001099/1.023, allocations: 1.321 MB / 1.167 GB, free: 136 kB / 0.9044 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.539e-06/1.023, allocations: 5.031 kB / 1.167 GB, free: 132 kB / 0.9044 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001657/1.025, allocations: 0.8663 MB / 1.168 GB, free: 15.58 MB / 0.92 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004369/1.025, allocations: 192.6 kB / 1.168 GB, free: 15.4 MB / 0.92 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.781e-05/1.026, allocations: 14.81 kB / 1.168 GB, free: 15.39 MB / 0.92 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004334/1.026, allocations: 20.7 kB / 1.168 GB, free: 15.38 MB / 0.92 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.632e-05/1.026, allocations: 28.92 kB / 1.168 GB, free: 15.36 MB / 0.92 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.707e-05/1.026, allocations: 22.42 kB / 1.168 GB, free: 15.35 MB / 0.92 GB Notification: Performance of sorting global known variables: time 0.0006701/1.027, allocations: 356.7 kB / 1.168 GB, free: 15.14 MB / 0.92 GB Notification: Performance of sort global known variables: time 1.31e-07/1.027, allocations: 0 / 1.168 GB, free: 15.14 MB / 0.92 GB Notification: Performance of remove unused functions: time 0.002358/1.029, allocations: 458.2 kB / 1.169 GB, free: 15.05 MB / 0.92 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 2 (vol.dynBal.medium.T,vol1.dynBal.medium.T) * 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 (30): * Single equations (assignments): 27 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(2,7), (2,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.003733/1.033, allocations: 1.763 MB / 1.171 GB, free: 13.83 MB / 0.92 GB Notification: Performance of simCode: created initialization part: time 0.00153/1.034, allocations: 0.6792 MB / 1.171 GB, free: 13.52 MB / 0.92 GB Notification: Performance of simCode: created event and clocks part: time 3.827e-06/1.034, allocations: 0 / 1.171 GB, free: 13.52 MB / 0.92 GB Notification: Performance of simCode: created simulation system equations: time 0.000529/1.035, allocations: 251.2 kB / 1.171 GB, free: 13.41 MB / 0.92 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00176/1.037, allocations: 336.7 kB / 1.172 GB, free: 13.23 MB / 0.92 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00804/1.045, allocations: 4.894 MB / 1.177 GB, free: 9.918 MB / 0.92 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007172/1.046, allocations: 0.9124 MB / 1.177 GB, free: 9.121 MB / 0.92 GB Notification: Performance of simCode: alias equations: time 0.0008798/1.047, allocations: 201.8 kB / 1.178 GB, free: 9.027 MB / 0.92 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004264/1.047, allocations: 242.3 kB / 1.178 GB, free: 8.832 MB / 0.92 GB Notification: Performance of SimCode: time 1.002e-06/1.047, allocations: 0 / 1.178 GB, free: 8.832 MB / 0.92 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05897/1.106, allocations: 22.46 MB / 1.2 GB, free: 9.883 MB / 0.9356 GB Notification: Performance of buildModelFMU: Generate platform static: time 17.52/18.63, allocations: 11.41 kB / 1.2 GB, free: 9.879 MB / 0.9356 GB (rm -f Buildings_9_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe ; mkfifo Buildings_9_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe ; head -c 1048576 < Buildings_9_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe >> ../files/Buildings_9_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_9_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47_res.mat --tempDir=temp_Buildings_9_Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesGlycol47_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_9_Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesGlycol47.fmu > Buildings_9_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe 2>&1)