Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Running command: translateModel(Buildings.Fluid.Movers.Validation.FlowControlled_dp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp") translateModel(Buildings.Fluid.Movers.Validation.FlowControlled_dp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.895/1.895, allocations: 292.3 MB / 308.1 MB, free: 4.309 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001313/0.001313, allocations: 196.1 kB / 376.9 MB, free: 1.828 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.419/1.419, allocations: 205.1 MB / 0.6354 GB, free: 9.828 MB / 474.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001034/0.001034, allocations: 96.84 kB / 0.7479 GB, free: 61.04 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.001152/0.001152, allocations: 55.92 kB / 0.8704 GB, free: 13.14 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2657/0.2669, allocations: 114.5 MB / 0.9822 GB, free: 10.43 MB / 0.7136 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Validation.FlowControlled_dp): time 0.8838/1.151, allocations: 321.8 MB / 1.296 GB, free: 13.35 MB / 0.8698 GB Notification: Performance of NFInst.instExpressions: time 0.03926/1.19, allocations: 23.52 MB / 1.319 GB, free: 10.3 MB / 0.8855 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005684/1.196, allocations: 87.44 kB / 1.32 GB, free: 10.21 MB / 0.8855 GB Notification: Performance of NFTyping.typeComponents: time 0.005491/1.201, allocations: 1.318 MB / 1.321 GB, free: 8.887 MB / 0.8855 GB Notification: Performance of NFTyping.typeBindings: time 0.01275/1.214, allocations: 3.936 MB / 1.325 GB, free: 4.938 MB / 0.8855 GB Notification: Performance of NFTyping.typeClassSections: time 0.007161/1.221, allocations: 2.104 MB / 1.327 GB, free: 2.848 MB / 0.8855 GB Notification: Performance of NFFlatten.flatten: time 0.01368/1.235, allocations: 8.04 MB / 1.335 GB, free: 10.79 MB / 0.9011 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00436/1.239, allocations: 1.866 MB / 1.336 GB, free: 8.875 MB / 0.9011 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008785/1.248, allocations: 2.895 MB / 1.339 GB, free: 5.969 MB / 0.9011 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004932/1.253, allocations: 1.809 MB / 1.341 GB, free: 4.16 MB / 0.9011 GB Notification: Performance of NFPackage.collectConstants: time 0.001016/1.254, allocations: 116 kB / 1.341 GB, free: 4.047 MB / 0.9011 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01006/1.264, allocations: 4.065 MB / 1.345 GB, free: 15.97 MB / 0.9167 GB Notification: Performance of NFScalarize.scalarize: time 0.001907/1.266, allocations: 0.7864 MB / 1.346 GB, free: 15.18 MB / 0.9167 GB Notification: Performance of NFVerifyModel.verify: time 0.0036/1.27, allocations: 1.236 MB / 1.347 GB, free: 13.94 MB / 0.9167 GB Notification: Performance of NFConvertDAE.convert: time 0.01138/1.281, allocations: 4.849 MB / 1.352 GB, free: 9.078 MB / 0.9167 GB Notification: Performance of FrontEnd - DAE generated: time 8.105e-06/1.281, allocations: 0 / 1.352 GB, free: 9.078 MB / 0.9167 GB Notification: Performance of FrontEnd: time 2.344e-06/1.281, allocations: 0 / 1.352 GB, free: 9.078 MB / 0.9167 GB Notification: Performance of Transformations before backend: time 0.0001649/1.282, allocations: 0 / 1.352 GB, free: 9.078 MB / 0.9167 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 345 * Number of variables: 345 Notification: Performance of Generate backend data structure: time 0.008999/1.291, allocations: 3.003 MB / 1.355 GB, free: 6.016 MB / 0.9167 GB Notification: Performance of prepare preOptimizeDAE: time 5.47e-05/1.291, allocations: 15.97 kB / 1.355 GB, free: 6 MB / 0.9167 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005948/1.297, allocations: 0.8397 MB / 1.356 GB, free: 5.156 MB / 0.9167 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005449/1.302, allocations: 1.85 MB / 1.357 GB, free: 3.23 MB / 0.9167 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004771/1.303, allocations: 170.6 kB / 1.358 GB, free: 3.062 MB / 0.9167 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005702/1.303, allocations: 147.9 kB / 1.358 GB, free: 2.918 MB / 0.9167 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004674/1.308, allocations: 1.683 MB / 1.359 GB, free: 1.18 MB / 0.9167 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.902e-05/1.308, allocations: 0 / 1.359 GB, free: 1.18 MB / 0.9167 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000264/1.308, allocations: 56 kB / 1.359 GB, free: 1.125 MB / 0.9167 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.889e-05/1.308, allocations: 54.58 kB / 1.359 GB, free: 1.07 MB / 0.9167 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003982/1.312, allocations: 1.412 MB / 1.361 GB, free: 15.65 MB / 0.9323 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 0.01376/1.326, allocations: 7.731 MB / 1.368 GB, free: 7.316 MB / 0.9323 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002439/1.329, allocations: 1.073 MB / 1.369 GB, free: 6.199 MB / 0.9323 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001204/1.33, allocations: 0.5037 MB / 1.37 GB, free: 5.695 MB / 0.9323 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002419/1.33, allocations: 113.7 kB / 1.37 GB, free: 5.566 MB / 0.9323 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.623e-05/1.33, allocations: 39.22 kB / 1.37 GB, free: 5.52 MB / 0.9323 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001228/1.331, allocations: 139 kB / 1.37 GB, free: 5.383 MB / 0.9323 GB Notification: Performance of pre-optimization done (n=77): time 8.957e-06/1.331, allocations: 3.938 kB / 1.37 GB, free: 5.379 MB / 0.9323 GB Notification: Performance of matching and sorting (n=77): time 0.004663/1.336, allocations: 1.583 MB / 1.372 GB, free: 3.77 MB / 0.9323 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.04e-05/1.336, allocations: 56.06 kB / 1.372 GB, free: 3.703 MB / 0.9323 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003421/1.34, allocations: 1.785 MB / 1.373 GB, free: 1.883 MB / 0.9323 GB Notification: Performance of collectPreVariables (initialization): time 0.0001573/1.34, allocations: 49.69 kB / 1.374 GB, free: 1.828 MB / 0.9323 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008797/1.341, allocations: 0.98 MB / 1.374 GB, free: 0.8359 MB / 0.9323 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002883/1.341, allocations: 264.1 kB / 1.375 GB, free: 0.5742 MB / 0.9323 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004075/1.341, allocations: 218.4 kB / 1.375 GB, free: 360 kB / 0.9323 GB Notification: Performance of setup shared object (initialization): time 0.0001344/1.342, allocations: 345.9 kB / 1.375 GB, free: 8 kB / 0.9323 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.5294/1.871, allocations: 472.2 kB / 1.376 GB, free: 285.2 MB / 0.9323 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001996/1.873, allocations: 0.8581 MB / 1.377 GB, free: 284.8 MB / 0.9323 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003175/1.876, allocations: 1.261 MB / 1.378 GB, free: 284.4 MB / 0.9323 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.126e-05/1.876, allocations: 3.094 kB / 1.378 GB, free: 284.4 MB / 0.9323 GB Notification: Performance of matching and sorting (n=127) (initialization): time 0.004148/1.88, allocations: 1.513 MB / 1.379 GB, free: 284.4 MB / 0.9323 GB Notification: Performance of prepare postOptimizeDAE: time 3.149e-05/1.88, allocations: 7.969 kB / 1.379 GB, free: 284.4 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.462e-05/1.88, allocations: 15.25 kB / 1.379 GB, free: 284.4 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003438/1.881, allocations: 65.34 kB / 1.379 GB, free: 284.4 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001312/1.882, allocations: 286.5 kB / 1.38 GB, free: 284.4 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000799/1.883, allocations: 1.75 MB / 1.381 GB, free: 282.7 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002076/1.885, allocations: 146.6 kB / 1.381 GB, free: 282.7 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001466/1.885, allocations: 60.7 kB / 1.382 GB, free: 282.7 MB / 0.9323 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001964/1.887, allocations: 0.8337 MB / 1.382 GB, free: 282.6 MB / 0.9323 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001217/1.888, allocations: 0.8172 MB / 1.383 GB, free: 282.1 MB / 0.9323 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002096/1.891, allocations: 1.157 MB / 1.384 GB, free: 281.8 MB / 0.9323 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.257e-05/1.891, allocations: 4.312 kB / 1.384 GB, free: 281.8 MB / 0.9323 GB Notification: Performance of matching and sorting (n=127) (initialization_lambda0): time 0.003532/1.894, allocations: 1.473 MB / 1.386 GB, free: 281.6 MB / 0.9323 GB Notification: Performance of prepare postOptimizeDAE: time 2.074e-05/1.894, allocations: 11.81 kB / 1.386 GB, free: 281.6 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.583e-05/1.894, allocations: 9.844 kB / 1.386 GB, free: 281.6 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001472/1.894, allocations: 50.2 kB / 1.386 GB, free: 281.6 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001077/1.895, allocations: 245 kB / 1.386 GB, free: 281.6 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001253/1.897, allocations: 1.481 MB / 1.387 GB, free: 280.3 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001987/1.899, allocations: 146.1 kB / 1.388 GB, free: 280.3 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001543/1.899, allocations: 50.34 kB / 1.388 GB, free: 280.3 MB / 0.9323 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 43 * 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 (121): * Single equations (assignments): 116 * Array equations: 2 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 1 * 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): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems 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 0.0004951/1.899, allocations: 252.2 kB / 1.388 GB, free: 280.1 MB / 0.9323 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006799/1.9, allocations: 190.5 kB / 1.388 GB, free: 280.1 MB / 0.9323 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003546/1.904, allocations: 1.215 MB / 1.389 GB, free: 279.9 MB / 0.9323 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.562e-05/1.904, allocations: 10.7 kB / 1.389 GB, free: 279.9 MB / 0.9323 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.859e-06/1.904, allocations: 2.75 kB / 1.389 GB, free: 279.9 MB / 0.9323 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002654/1.906, allocations: 1.045 MB / 1.39 GB, free: 279.6 MB / 0.9323 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 postOpt removeSimpleEquations (simulation): time 0.008868/1.915, allocations: 2.994 MB / 1.393 GB, free: 278.6 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.013e-05/1.915, allocations: 1.062 kB / 1.393 GB, free: 278.6 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001279/1.917, allocations: 225.5 kB / 1.393 GB, free: 278.6 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000126/1.917, allocations: 28.33 kB / 1.393 GB, free: 278.6 MB / 0.9323 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.853e-05/1.917, allocations: 26.55 kB / 1.393 GB, free: 278.6 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001738/1.919, allocations: 3.133 MB / 1.397 GB, free: 275.5 MB / 0.9323 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.02e-06/1.919, allocations: 6.938 kB / 1.397 GB, free: 275.5 MB / 0.9323 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02565/1.944, allocations: 8.428 MB / 1.405 GB, free: 271 MB / 0.9323 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001146/1.945, allocations: 352.2 kB / 1.405 GB, free: 270.8 MB / 0.9323 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004247/1.946, allocations: 18.86 kB / 1.405 GB, free: 270.8 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001524/1.947, allocations: 140.6 kB / 1.405 GB, free: 270.7 MB / 0.9323 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001781/1.948, allocations: 54.53 kB / 1.405 GB, free: 270.7 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.88e-05/1.948, allocations: 33.34 kB / 1.405 GB, free: 270.7 MB / 0.9323 GB Notification: Performance of sorting global known variables: time 0.002492/1.95, allocations: 1.213 MB / 1.407 GB, free: 270.2 MB / 0.9323 GB Notification: Performance of sort global known variables: time 4.51e-07/1.95, allocations: 0 / 1.407 GB, free: 270.2 MB / 0.9323 GB Notification: Performance of remove unused functions: time 0.006306/1.956, allocations: 1.52 MB / 1.408 GB, free: 270.1 MB / 0.9323 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 3 (floMacDyn.vol.dynBal.U,floMacDyn.vol.dynBal.m,floMacDyn.vol.dynBal.mXi[1]) * 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 (77): * Single equations (assignments): 73 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 3 * Torn equation systems: 1 * 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): 3 systems {1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001622/1.958, allocations: 438.8 kB / 1.408 GB, free: 270 MB / 0.9323 GB Notification: Performance of simCode: created initialization part: time 0.004654/1.963, allocations: 1.835 MB / 1.41 GB, free: 269.4 MB / 0.9323 GB Notification: Performance of simCode: created event and clocks part: time 6.843e-06/1.963, allocations: 0.7031 kB / 1.41 GB, free: 269.4 MB / 0.9323 GB Notification: Performance of simCode: created simulation system equations: time 0.001467/1.964, allocations: 0.614 MB / 1.411 GB, free: 269.1 MB / 0.9323 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005058/1.969, allocations: 1.025 MB / 1.412 GB, free: 268.9 MB / 0.9323 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006293/1.976, allocations: 4.784 MB / 1.417 GB, free: 266 MB / 0.9323 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001005/1.977, allocations: 1.594 MB / 1.418 GB, free: 265.2 MB / 0.9323 GB Notification: Performance of simCode: alias equations: time 0.002647/1.979, allocations: 0.4973 MB / 1.419 GB, free: 265.1 MB / 0.9323 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004745/1.98, allocations: 162.2 kB / 1.419 GB, free: 265.1 MB / 0.9323 GB Notification: Performance of SimCode: time 9.92e-07/1.98, allocations: 0 / 1.419 GB, free: 265.1 MB / 0.9323 GB Notification: Performance of Templates: time 0.06894/2.049, allocations: 42.66 MB / 1.46 GB, free: 261.9 MB / 0.9323 GB make -j1 -f Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.makefile (rm -f Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe ; mkfifo Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe >> ../files/Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.sim & ./Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe 2>&1)