Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.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-master/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/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.Chillers.Examples.Carnot_y,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Chillers_Examples_Carnot_y",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Chillers.Examples.Carnot_y,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Chillers_Examples_Carnot_y",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 0.004809/0.004809, allocations: 97.38 kB / 15.73 MB, free: 5.949 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001147/0.001147, allocations: 193 kB / 16.67 MB, free: 5.871 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.333/1.333, allocations: 222.9 MB / 240.4 MB, free: 15.09 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.8133/0.8133, allocations: 135.1 MB / 425.7 MB, free: 4.098 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001293/0.001293, allocations: 65.19 kB / 0.5851 GB, free: 22.09 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1271/0.1284, allocations: 80.92 MB / 0.6641 GB, free: 6.434 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Chillers.Examples.Carnot_y): time 0.07254/0.201, allocations: 75.13 MB / 0.7375 GB, free: 11.05 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.3265/0.5275, allocations: 12.71 MB / 0.7499 GB, free: 25.22 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002076/0.5296, allocations: 64.56 kB / 0.75 GB, free: 25.22 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.001924/0.5316, allocations: 0.8541 MB / 0.7508 GB, free: 25.22 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.00585/0.5375, allocations: 2.585 MB / 0.7533 GB, free: 25.18 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.003031/0.5405, allocations: 1.391 MB / 0.7547 GB, free: 25.14 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.005499/0.546, allocations: 4.404 MB / 0.759 GB, free: 25.13 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002153/0.5482, allocations: 1.434 MB / 0.7604 GB, free: 24.99 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004304/0.5525, allocations: 1.662 MB / 0.762 GB, free: 24.93 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002161/0.5547, allocations: 1.197 MB / 0.7632 GB, free: 24.72 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0003948/0.5551, allocations: 163.2 kB / 0.7634 GB, free: 24.72 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003187/0.5583, allocations: 1.404 MB / 0.7647 GB, free: 24.7 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0003841/0.5587, allocations: 403.8 kB / 0.7651 GB, free: 24.63 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.001079/0.5598, allocations: 0.9068 MB / 0.766 GB, free: 24.39 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.004167/0.5639, allocations: 2.882 MB / 0.7688 GB, free: 24.04 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 3.797e-06/0.564, allocations: 0 / 0.7688 GB, free: 24.04 MB / 0.5762 GB Notification: Performance of FrontEnd: time 2.194e-06/0.564, allocations: 1 kB / 0.7688 GB, free: 24.04 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 3.087e-05/0.564, allocations: 3 kB / 0.7688 GB, free: 24.04 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: 240 * Number of variables: 240 Notification: Performance of Generate backend data structure: time 0.003676/0.5677, allocations: 2.145 MB / 0.7709 GB, free: 22.94 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 3.684e-05/0.5677, allocations: 10.2 kB / 0.7709 GB, free: 22.94 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001623/0.5679, allocations: 143 kB / 0.7711 GB, free: 22.9 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008488/0.5688, allocations: 249.2 kB / 0.7713 GB, free: 22.8 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002328/0.5711, allocations: 1.521 MB / 0.7728 GB, free: 22.38 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.846e-05/0.5712, allocations: 75 kB / 0.7728 GB, free: 22.38 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001577/0.5713, allocations: 104 kB / 0.7729 GB, free: 22.38 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001957/0.5733, allocations: 1.111 MB / 0.774 GB, free: 22.23 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.857e-05/0.5733, allocations: 1.719 kB / 0.774 GB, free: 22.23 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.454e-05/0.5734, allocations: 37.97 kB / 0.7741 GB, free: 22.23 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.403e-05/0.5735, allocations: 31.47 kB / 0.7741 GB, free: 22.23 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001873/0.5754, allocations: 0.8828 MB / 0.775 GB, free: 22.22 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 0.005229/0.5806, allocations: 4.91 MB / 0.7798 GB, free: 20.02 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001363/0.582, allocations: 0.6182 MB / 0.7804 GB, free: 19.88 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006959/0.5827, allocations: 349.7 kB / 0.7807 GB, free: 19.77 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004154/0.5831, allocations: 0.8275 MB / 0.7815 GB, free: 18.82 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.028e-05/0.5832, allocations: 48.44 kB / 0.7815 GB, free: 18.76 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=61): time 2.214e-06/0.5832, allocations: 1.625 kB / 0.7815 GB, free: 18.76 MB / 0.5762 GB Notification: Performance of matching and sorting (n=61): time 0.007368/0.5905, allocations: 1.679 MB / 0.7832 GB, free: 18.27 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.215e-05/0.5906, allocations: 58.59 kB / 0.7832 GB, free: 18.2 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001481/0.5921, allocations: 1.224 MB / 0.7844 GB, free: 17.7 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 7.715e-05/0.5922, allocations: 42.58 kB / 0.7845 GB, free: 17.66 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003782/0.5925, allocations: 0.6149 MB / 0.7851 GB, free: 17.17 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.000156/0.5927, allocations: 228.7 kB / 0.7853 GB, free: 17 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002085/0.5929, allocations: 153.4 kB / 0.7854 GB, free: 16.92 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 4.989e-05/0.593, allocations: 335.9 kB / 0.7858 GB, free: 16.6 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006611/0.5936, allocations: 287.1 kB / 0.786 GB, free: 16.51 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007644/0.5944, allocations: 494.6 kB / 0.7865 GB, free: 16.2 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001325/0.5958, allocations: 0.713 MB / 0.7872 GB, free: 15.83 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.978e-06/0.5958, allocations: 0 / 0.7872 GB, free: 15.83 MB / 0.5762 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.004793/0.6006, allocations: 1.283 MB / 0.7885 GB, free: 15.3 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.786e-05/0.6006, allocations: 6.875 kB / 0.7885 GB, free: 15.3 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.037e-06/0.6006, allocations: 4.125 kB / 0.7885 GB, free: 15.3 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005882/0.6012, allocations: 142.8 kB / 0.7886 GB, free: 15.23 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006321/0.6019, allocations: 158.9 kB / 0.7888 GB, free: 15.2 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006874/0.6026, allocations: 0.6828 MB / 0.7894 GB, free: 14.6 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00119/0.6038, allocations: 133.9 kB / 0.7896 GB, free: 14.51 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.821e-05/0.6038, allocations: 32.27 kB / 0.7896 GB, free: 14.5 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001017/0.6049, allocations: 0.5469 MB / 0.7901 GB, free: 14.17 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007372/0.6056, allocations: 0.4893 MB / 0.7906 GB, free: 13.79 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001268/0.6069, allocations: 0.7074 MB / 0.7913 GB, free: 13.36 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.796e-06/0.6069, allocations: 0 / 0.7913 GB, free: 13.36 MB / 0.5762 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.004596/0.6115, allocations: 1.265 MB / 0.7925 GB, free: 12.76 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.171e-05/0.6115, allocations: 5.75 kB / 0.7925 GB, free: 12.76 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.15e-06/0.6115, allocations: 9.5 kB / 0.7925 GB, free: 12.76 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000481/0.612, allocations: 132.1 kB / 0.7927 GB, free: 12.7 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005884/0.6126, allocations: 163.9 kB / 0.7928 GB, free: 12.66 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000665/0.6133, allocations: 0.6972 MB / 0.7935 GB, free: 12.05 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001235/0.6145, allocations: 106 kB / 0.7936 GB, free: 11.98 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.458e-05/0.6146, allocations: 32.67 kB / 0.7936 GB, free: 11.97 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * 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 (79): * Single equations (assignments): 78 * Array equations: 0 * 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 {(1,9)} Notification: Performance of prepare postOptimizeDAE: time 0.000217/0.6148, allocations: 225.3 kB / 0.7938 GB, free: 11.77 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002409/0.6151, allocations: 139.4 kB / 0.794 GB, free: 11.69 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004592/0.6197, allocations: 1.264 MB / 0.7952 GB, free: 10.99 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.553e-05/0.6197, allocations: 6.719 kB / 0.7952 GB, free: 10.99 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.303e-06/0.6197, allocations: 4 kB / 0.7952 GB, free: 10.99 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.004108/0.6238, allocations: 1.099 MB / 0.7963 GB, free: 10.37 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006684/0.6305, allocations: 2.619 MB / 0.7989 GB, free: 8.609 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.655e-06/0.6306, allocations: 2.688 kB / 0.7989 GB, free: 8.609 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004838/0.6311, allocations: 120 kB / 0.799 GB, free: 8.582 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004607/0.6315, allocations: 123.1 kB / 0.7991 GB, free: 8.523 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.374e-05/0.6316, allocations: 28.61 kB / 0.7991 GB, free: 8.504 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004508/0.6361, allocations: 2.588 MB / 0.8016 GB, free: 6.324 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.609e-06/0.6361, allocations: 9.5 kB / 0.8017 GB, free: 6.32 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005162/0.6413, allocations: 1.701 MB / 0.8033 GB, free: 5.316 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005881/0.6419, allocations: 324.8 kB / 0.8036 GB, free: 5.035 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001959/0.6421, allocations: 15.91 kB / 0.8036 GB, free: 5.027 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008536/0.643, allocations: 48.12 kB / 0.8037 GB, free: 5.004 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001123/0.6431, allocations: 69.77 kB / 0.8038 GB, free: 4.965 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.772e-05/0.6431, allocations: 35.48 kB / 0.8038 GB, free: 4.949 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.001092/0.6442, allocations: 0.8815 MB / 0.8046 GB, free: 4.457 MB / 0.5762 GB Notification: Performance of sort global known variables: time 2.9e-07/0.6443, allocations: 0 / 0.8046 GB, free: 4.457 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.001947/0.6462, allocations: 0.7259 MB / 0.8054 GB, free: 4.301 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 2 (chi.con.vol.dynBal.U,chi.eva.vol.dynBal.U) * 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 (56): * Single equations (assignments): 51 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * 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 {(1,9)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0059/0.6521, allocations: 2.595 MB / 0.8079 GB, free: 2.066 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.002315/0.6544, allocations: 1.117 MB / 0.809 GB, free: 0.9883 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 5.109e-06/0.6545, allocations: 4 kB / 0.809 GB, free: 0.9844 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.001349/0.6558, allocations: 0.5579 MB / 0.8095 GB, free: 452 kB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003502/0.6593, allocations: 0.8074 MB / 0.8103 GB, free: 15.65 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02001/0.6794, allocations: 9.84 MB / 0.8199 GB, free: 5.578 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007332/0.6801, allocations: 1.176 MB / 0.8211 GB, free: 4.375 MB / 0.5919 GB Notification: Performance of simCode: alias equations: time 0.001287/0.6814, allocations: 299 kB / 0.8214 GB, free: 4.078 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007745/0.6822, allocations: 0.5148 MB / 0.8219 GB, free: 3.562 MB / 0.5919 GB Notification: Performance of SimCode: time 5.11e-07/0.6822, allocations: 0 / 0.8219 GB, free: 3.562 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07555/0.7578, allocations: 42.4 MB / 0.8633 GB, free: 9.625 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.27/14.03, allocations: 7.859 kB / 0.8633 GB, free: 9.617 MB / 0.6387 GB (rm -f IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.sim & python3 -m fmpy simulate --output-file IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y_res.csv --start-time 0 --stop-time 3600 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 1.44 IDEAS_dev_IDEAS_Fluid_Chillers_Examples_Carnot_y.fmu > IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.pipe 2>&1)