Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.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: translateModel(IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU") translateModel(IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00149/0.00149, allocations: 103.3 kB / 16.27 MB, free: 5.98 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001602/0.001602, allocations: 187.7 kB / 17.19 MB, free: 5.605 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.413/1.413, allocations: 222.9 MB / 240.9 MB, free: 15.23 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.8184/0.8184, allocations: 135.1 MB / 426.2 MB, free: 4.234 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001544/0.001544, allocations: 64.12 kB / 0.506 GB, free: 8.449 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3856/0.3872, allocations: 80.91 MB / 0.585 GB, free: 25.3 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU): time 0.7136/1.101, allocations: 355.6 MB / 0.9322 GB, free: 10.15 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.05123/1.152, allocations: 31.88 MB / 0.9634 GB, free: 10.19 MB / 0.6856 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.008442/1.161, allocations: 166.9 kB / 0.9635 GB, free: 10.02 MB / 0.6856 GB Notification: Performance of NFTyping.typeComponents: time 0.009467/1.17, allocations: 2.889 MB / 0.9664 GB, free: 7.117 MB / 0.6856 GB Notification: Performance of NFTyping.typeBindings: time 0.02547/1.196, allocations: 8.15 MB / 0.9743 GB, free: 14.93 MB / 0.7012 GB Notification: Performance of NFTyping.typeClassSections: time 0.01171/1.207, allocations: 4.095 MB / 0.9783 GB, free: 10.91 MB / 0.7012 GB Notification: Performance of NFFlatten.flatten: time 0.01933/1.227, allocations: 12.54 MB / 0.9906 GB, free: 14.33 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.009671/1.236, allocations: 4.614 MB / 0.9951 GB, free: 9.633 MB / 0.7169 GB Notification: Performance of NFEvalConstants.evaluate: time 0.02064/1.257, allocations: 7.343 MB / 1.002 GB, free: 2.273 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.008682/1.266, allocations: 3.986 MB / 1.006 GB, free: 14.29 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.002666/1.268, allocations: 0.5273 MB / 1.007 GB, free: 13.77 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01463/1.283, allocations: 5.54 MB / 1.012 GB, free: 8.215 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.003746/1.287, allocations: 1.518 MB / 1.014 GB, free: 6.691 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.008093/1.295, allocations: 2.97 MB / 1.016 GB, free: 3.707 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.0189/1.314, allocations: 8.885 MB / 1.025 GB, free: 10.8 MB / 0.7481 GB Notification: Performance of FrontEnd - DAE generated: time 5.129e-06/1.314, allocations: 0 / 1.025 GB, free: 10.8 MB / 0.7481 GB Notification: Performance of FrontEnd: time 1.533e-06/1.314, allocations: 0 / 1.025 GB, free: 10.8 MB / 0.7481 GB Notification: Performance of Transformations before backend: time 0.0003221/1.314, allocations: 0 / 1.025 GB, free: 10.8 MB / 0.7481 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 822 * Number of variables: 822 Notification: Performance of Generate backend data structure: time 0.02115/1.335, allocations: 6.309 MB / 1.031 GB, free: 4.398 MB / 0.7481 GB Notification: Performance of prepare preOptimizeDAE: time 4.682e-05/1.336, allocations: 13.11 kB / 1.031 GB, free: 4.387 MB / 0.7481 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01258/1.348, allocations: 2.007 MB / 1.033 GB, free: 2.371 MB / 0.7481 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.2782/1.626, allocations: 3.714 MB / 1.037 GB, free: 324.4 MB / 0.7481 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.003493/1.63, allocations: 0.8211 MB / 1.038 GB, free: 324.3 MB / 0.7481 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001144/1.631, allocations: 357.7 kB / 1.038 GB, free: 324.1 MB / 0.7481 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0128/1.644, allocations: 4.794 MB / 1.043 GB, free: 322.4 MB / 0.7481 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.096e-05/1.644, allocations: 8.031 kB / 1.043 GB, free: 322.4 MB / 0.7481 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004533/1.644, allocations: 132 kB / 1.043 GB, free: 322.3 MB / 0.7481 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002421/1.645, allocations: 154.2 kB / 1.043 GB, free: 322.3 MB / 0.7481 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01465/1.659, allocations: 5.386 MB / 1.048 GB, free: 320.6 MB / 0.7481 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 0.03051/1.69, allocations: 19.71 MB / 1.067 GB, free: 305 MB / 0.7481 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0108/1.701, allocations: 3.87 MB / 1.071 GB, free: 303.3 MB / 0.7481 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005207/1.706, allocations: 2.036 MB / 1.073 GB, free: 301.8 MB / 0.7481 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0008008/1.707, allocations: 0.6873 MB / 1.074 GB, free: 301 MB / 0.7481 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005759/1.713, allocations: 2.308 MB / 1.076 GB, free: 298.8 MB / 0.7481 GB Notification: Performance of pre-optimization done (n=251): time 5.01e-06/1.713, allocations: 4 kB / 1.076 GB, free: 298.7 MB / 0.7481 GB Notification: Performance of matching and sorting (n=251): time 0.01733/1.73, allocations: 5.792 MB / 1.082 GB, free: 292.9 MB / 0.7481 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.656e-05/1.73, allocations: 111.1 kB / 1.082 GB, free: 292.8 MB / 0.7481 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005121/1.735, allocations: 3.636 MB / 1.085 GB, free: 289.2 MB / 0.7481 GB Notification: Performance of collectPreVariables (initialization): time 0.0008975/1.736, allocations: 93.7 kB / 1.086 GB, free: 289.1 MB / 0.7481 GB Notification: Performance of collectInitialEqns (initialization): time 0.001462/1.738, allocations: 1.833 MB / 1.087 GB, free: 287.2 MB / 0.7481 GB Notification: Performance of collectInitialBindings (initialization): time 0.001066/1.739, allocations: 0.8449 MB / 1.088 GB, free: 286.4 MB / 0.7481 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001285/1.74, allocations: 0.7015 MB / 1.089 GB, free: 285.7 MB / 0.7481 GB Notification: Performance of setup shared object (initialization): time 6.014e-05/1.74, allocations: 305.1 kB / 1.089 GB, free: 285.4 MB / 0.7481 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005386/1.745, allocations: 1.949 MB / 1.091 GB, free: 283.4 MB / 0.7481 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006339/1.752, allocations: 2.733 MB / 1.094 GB, free: 280.4 MB / 0.7481 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0109/1.763, allocations: 4.136 MB / 1.098 GB, free: 276.1 MB / 0.7481 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.055e-05/1.763, allocations: 4 kB / 1.098 GB, free: 276.1 MB / 0.7481 GB Notification: Performance of matching and sorting (n=404) (initialization): time 0.0138/1.777, allocations: 5.065 MB / 1.103 GB, free: 271 MB / 0.7481 GB Notification: Performance of prepare postOptimizeDAE: time 5.828e-05/1.777, allocations: 37.7 kB / 1.103 GB, free: 270.9 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.3e-05/1.777, allocations: 15.94 kB / 1.103 GB, free: 270.9 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.586e-05/1.777, allocations: 24 kB / 1.103 GB, free: 270.9 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006123/1.783, allocations: 1.197 MB / 1.104 GB, free: 269.7 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002012/1.785, allocations: 5.962 MB / 1.11 GB, free: 263.5 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005683/1.791, allocations: 0.6553 MB / 1.11 GB, free: 262.9 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005051/1.791, allocations: 159.9 kB / 1.111 GB, free: 262.7 MB / 0.7481 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006347/1.798, allocations: 2.61 MB / 1.113 GB, free: 260.1 MB / 0.7481 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005438/1.803, allocations: 2.71 MB / 1.116 GB, free: 257.1 MB / 0.7481 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.01023/1.813, allocations: 4.106 MB / 1.12 GB, free: 252.8 MB / 0.7481 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.878e-05/1.813, allocations: 4 kB / 1.12 GB, free: 252.8 MB / 0.7481 GB Notification: Performance of matching and sorting (n=404) (initialization_lambda0): time 0.01342/1.827, allocations: 5.02 MB / 1.125 GB, free: 247.7 MB / 0.7481 GB Notification: Performance of prepare postOptimizeDAE: time 4.89e-05/1.827, allocations: 41.69 kB / 1.125 GB, free: 247.7 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.009e-05/1.827, allocations: 12 kB / 1.125 GB, free: 247.7 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.369e-05/1.827, allocations: 24 kB / 1.125 GB, free: 247.7 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005048/1.832, allocations: 1.058 MB / 1.126 GB, free: 246.6 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.97e-05/1.832, allocations: 31.94 kB / 1.126 GB, free: 246.6 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005569/1.838, allocations: 0.5871 MB / 1.126 GB, free: 246 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005936/1.838, allocations: 159.7 kB / 1.127 GB, free: 245.8 MB / 0.7481 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 52 * Number of states: 0 () * Number of discrete variables: 15 (hexCroUnm.flowRegime,hexCroUnm.flowRegime_nominal,hexCroC1Unm.flowRegime_nominal,hexCroC1Mix.flowRegime_nominal,hexCou.flowRegime_nominal,hexPar.flowRegime_nominal,trapezoid.count,$PRE.trapezoid.count,trapezoid.T_start,$PRE.trapezoid.T_start,hexCroC1Unm.flowRegime,hexCroC1Mix.flowRegime,hexCou.flowRegime,hexPar.flowRegime,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (403): * Single equations (assignments): 392 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0009119/1.839, allocations: 376.6 kB / 1.127 GB, free: 245.5 MB / 0.7481 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001352/1.841, allocations: 438.6 kB / 1.127 GB, free: 245 MB / 0.7481 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01241/1.853, allocations: 4.662 MB / 1.132 GB, free: 240.3 MB / 0.7481 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.545e-05/1.853, allocations: 28 kB / 1.132 GB, free: 240.3 MB / 0.7481 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.335e-05/1.853, allocations: 6.141 kB / 1.132 GB, free: 240.3 MB / 0.7481 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.973e-05/1.853, allocations: 15.89 kB / 1.132 GB, free: 240.3 MB / 0.7481 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0187/1.872, allocations: 9.06 MB / 1.141 GB, free: 231.1 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.432e-05/1.872, allocations: 4 kB / 1.141 GB, free: 231.1 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004209/1.876, allocations: 0.843 MB / 1.142 GB, free: 230.3 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.831e-05/1.876, allocations: 16 kB / 1.142 GB, free: 230.2 MB / 0.7481 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003245/1.876, allocations: 87.92 kB / 1.142 GB, free: 230.2 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001663/1.878, allocations: 5.935 MB / 1.148 GB, free: 224 MB / 0.7481 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.079e-06/1.878, allocations: 4 kB / 1.148 GB, free: 224 MB / 0.7481 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01252/1.891, allocations: 4.583 MB / 1.152 GB, free: 219.2 MB / 0.7481 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002641/1.893, allocations: 0.9788 MB / 1.153 GB, free: 218.2 MB / 0.7481 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001113/1.895, allocations: 52 kB / 1.153 GB, free: 218.2 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004771/1.899, allocations: 395.6 kB / 1.153 GB, free: 217.8 MB / 0.7481 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005341/1.9, allocations: 201.7 kB / 1.154 GB, free: 217.6 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003579/1.9, allocations: 127.9 kB / 1.154 GB, free: 217.5 MB / 0.7481 GB Notification: Performance of sorting global known variables: time 0.00373/1.904, allocations: 2.404 MB / 1.156 GB, free: 215.1 MB / 0.7481 GB Notification: Performance of sort global known variables: time 4.41e-07/1.904, allocations: 0 / 1.156 GB, free: 215.1 MB / 0.7481 GB Notification: Performance of remove unused functions: time 0.007853/1.912, allocations: 2.291 MB / 1.158 GB, free: 212.8 MB / 0.7481 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 20 * Number of states: 0 () * Number of discrete variables: 7 ($whenCondition1,hexPar.flowRegime,hexCou.flowRegime,hexCroC1Mix.flowRegime,hexCroC1Unm.flowRegime,trapezoid.T_start,trapezoid.count) * Number of discrete states: 1 (trapezoid.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (283): * Single equations (assignments): 269 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001666/1.914, allocations: 0.7101 MB / 1.159 GB, free: 212.2 MB / 0.7481 GB Notification: Performance of simCode: created initialization part: time 0.02656/1.94, allocations: 7.872 MB / 1.167 GB, free: 204.3 MB / 0.7481 GB Notification: Performance of simCode: created event and clocks part: time 1.589e-05/1.94, allocations: 4 kB / 1.167 GB, free: 204.3 MB / 0.7481 GB Notification: Performance of simCode: created simulation system equations: time 0.006719/1.947, allocations: 2.3 MB / 1.169 GB, free: 202 MB / 0.7481 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01124/1.958, allocations: 1.946 MB / 1.171 GB, free: 200.1 MB / 0.7481 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01956/1.978, allocations: 8.339 MB / 1.179 GB, free: 191.7 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002202/1.98, allocations: 2.383 MB / 1.181 GB, free: 189.3 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002138/1.982, allocations: 423.2 kB / 1.182 GB, free: 188.8 MB / 0.7481 GB Notification: Performance of SimCode: time 8.81e-07/1.982, allocations: 0 / 1.182 GB, free: 188.8 MB / 0.7481 GB Notification: Performance of Templates: time 0.4787/2.461, allocations: 270.2 MB / 1.446 GB, free: 250 MB / 0.7481 GB make -j1 -f IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.makefile (rm -f IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.sim & ./IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe 2>&1)