Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T.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/IBPSA 4.0.0-master/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) 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 IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/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: translateModel(IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T") translateModel(IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001186/0.001186, allocations: 182.7 kB / 16.63 MB, free: 5.117 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.4567/0.4567, allocations: 87.5 MB / 104.9 MB, free: 13.03 MB / 90.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.364/1.364, allocations: 222.9 MB / 349.1 MB, free: 2.758 MB / 282.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001017/0.001017, allocations: 104.1 kB / 420 MB, free: 8.508 MB / 314.7 MB Notification: Performance of FrontEnd - loaded program: time 0.001193/0.001193, allocations: 55.92 kB / 0.4891 GB, free: 7.723 MB / 394.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.316/0.3172, allocations: 70.06 MB / 0.5575 GB, free: 44.87 MB / 410.7 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T): time 0.03687/0.3541, allocations: 52.92 MB / 0.6092 GB, free: 8.125 MB / 426.7 MB Notification: Performance of NFInst.instExpressions: time 0.02182/0.376, allocations: 15.29 MB / 0.6241 GB, free: 8.809 MB / 442.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.003338/0.3794, allocations: 83.5 kB / 0.6242 GB, free: 8.727 MB / 442.7 MB Notification: Performance of NFTyping.typeComponents: time 0.003289/0.3827, allocations: 0.9446 MB / 0.6251 GB, free: 7.777 MB / 442.7 MB Notification: Performance of NFTyping.typeBindings: time 0.006568/0.3893, allocations: 2.156 MB / 0.6272 GB, free: 5.617 MB / 442.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.00572/0.3951, allocations: 2.017 MB / 0.6292 GB, free: 3.617 MB / 442.7 MB Notification: Performance of NFFlatten.flatten: time 0.007773/0.4028, allocations: 6.046 MB / 0.6351 GB, free: 13.55 MB / 458.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.002929/0.4058, allocations: 1.395 MB / 0.6364 GB, free: 12.12 MB / 458.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.004347/0.4102, allocations: 1.692 MB / 0.6381 GB, free: 10.42 MB / 458.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002683/0.4129, allocations: 1.376 MB / 0.6394 GB, free: 9.039 MB / 458.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0005932/0.4135, allocations: 88 kB / 0.6395 GB, free: 8.953 MB / 458.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004099/0.4176, allocations: 1.727 MB / 0.6412 GB, free: 7.223 MB / 458.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0008032/0.4184, allocations: 462.1 kB / 0.6416 GB, free: 6.77 MB / 458.7 MB Notification: Performance of NFVerifyModel.verify: time 0.001868/0.4203, allocations: 0.9516 MB / 0.6426 GB, free: 5.812 MB / 458.7 MB Notification: Performance of NFConvertDAE.convert: time 0.005708/0.4261, allocations: 3.225 MB / 0.6457 GB, free: 2.578 MB / 458.7 MB Notification: Performance of FrontEnd - DAE generated: time 7.674e-06/0.4261, allocations: 4 kB / 0.6457 GB, free: 2.574 MB / 458.7 MB Notification: Performance of FrontEnd: time 1.593e-06/0.4261, allocations: 0 / 0.6457 GB, free: 2.574 MB / 458.7 MB Notification: Performance of Transformations before backend: time 0.0001162/0.4262, allocations: 0 / 0.6457 GB, free: 2.574 MB / 458.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 281 * Number of variables: 281 Notification: Performance of Generate backend data structure: time 0.005747/0.432, allocations: 2.525 MB / 0.6482 GB, free: 15.98 MB / 474.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.137e-05/0.432, allocations: 8.031 kB / 0.6482 GB, free: 15.97 MB / 474.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002693/0.4347, allocations: 0.529 MB / 0.6487 GB, free: 15.44 MB / 474.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003629/0.4384, allocations: 1.69 MB / 0.6504 GB, free: 13.7 MB / 474.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003633/0.4388, allocations: 146.4 kB / 0.6505 GB, free: 13.55 MB / 474.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000224/0.439, allocations: 116 kB / 0.6506 GB, free: 13.44 MB / 474.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003026/0.442, allocations: 1.377 MB / 0.652 GB, free: 11.97 MB / 474.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.149e-05/0.4421, allocations: 0 / 0.652 GB, free: 11.97 MB / 474.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001194/0.4422, allocations: 52 kB / 0.652 GB, free: 11.92 MB / 474.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.805e-05/0.4423, allocations: 42.08 kB / 0.652 GB, free: 11.88 MB / 474.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003067/0.4454, allocations: 1.144 MB / 0.6532 GB, free: 10.73 MB / 474.7 MB 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 0.01071/0.4561, allocations: 7.006 MB / 0.66 GB, free: 3.184 MB / 474.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.002699/0.4588, allocations: 1.427 MB / 0.6614 GB, free: 1.641 MB / 474.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001067/0.4599, allocations: 446.9 kB / 0.6618 GB, free: 1.203 MB / 474.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.006003/0.4659, allocations: 3.141 MB / 0.6649 GB, free: 13.72 MB / 490.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001209/0.4672, allocations: 470.9 kB / 0.6653 GB, free: 13.25 MB / 490.7 MB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0005953/0.4678, allocations: 91.17 kB / 0.6654 GB, free: 13.16 MB / 490.7 MB Notification: Performance of pre-optimization done (n=61): time 3.737e-06/0.4678, allocations: 4 kB / 0.6654 GB, free: 13.16 MB / 490.7 MB Notification: Performance of matching and sorting (n=61): time 0.003489/0.4713, allocations: 1.291 MB / 0.6667 GB, free: 11.84 MB / 490.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.796e-05/0.4714, allocations: 59.97 kB / 0.6668 GB, free: 11.77 MB / 490.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002226/0.4736, allocations: 1.513 MB / 0.6682 GB, free: 10.25 MB / 490.7 MB Notification: Performance of collectPreVariables (initialization): time 8.331e-05/0.4737, allocations: 41.7 kB / 0.6683 GB, free: 10.2 MB / 490.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0007528/0.4745, allocations: 0.8839 MB / 0.6691 GB, free: 9.309 MB / 490.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002061/0.4747, allocations: 220.9 kB / 0.6693 GB, free: 9.09 MB / 490.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003239/0.475, allocations: 210.3 kB / 0.6695 GB, free: 8.879 MB / 490.7 MB Notification: Performance of setup shared object (initialization): time 0.0001313/0.4752, allocations: 341.9 kB / 0.6699 GB, free: 8.539 MB / 490.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001039/0.4762, allocations: 412.6 kB / 0.6703 GB, free: 8.133 MB / 490.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001276/0.4775, allocations: 0.7749 MB / 0.671 GB, free: 7.184 MB / 490.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002238/0.4797, allocations: 1.164 MB / 0.6722 GB, free: 5.863 MB / 490.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.985e-06/0.4798, allocations: 7.938 kB / 0.6722 GB, free: 5.855 MB / 490.7 MB Notification: Performance of matching and sorting (n=123) (initialization): time 0.002948/0.4827, allocations: 1.341 MB / 0.6735 GB, free: 4.5 MB / 490.7 MB Notification: Performance of prepare postOptimizeDAE: time 4.301e-05/0.4828, allocations: 37.7 kB / 0.6735 GB, free: 4.457 MB / 490.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.757e-05/0.4828, allocations: 12 kB / 0.6735 GB, free: 4.445 MB / 490.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 2.583e-05/0.4828, allocations: 16 kB / 0.6735 GB, free: 4.43 MB / 490.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001013/0.4838, allocations: 271.8 kB / 0.6738 GB, free: 4.164 MB / 490.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.389e-05/0.4839, allocations: 19.94 kB / 0.6738 GB, free: 4.145 MB / 490.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001213/0.4851, allocations: 128.5 kB / 0.6739 GB, free: 4.02 MB / 490.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001008/0.4852, allocations: 52.08 kB / 0.674 GB, free: 3.969 MB / 490.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00151/0.4867, allocations: 0.7009 MB / 0.6747 GB, free: 3.262 MB / 490.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001216/0.488, allocations: 0.7631 MB / 0.6754 GB, free: 2.32 MB / 490.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002166/0.4901, allocations: 1.136 MB / 0.6765 GB, free: 1.031 MB / 490.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 7.634e-06/0.4902, allocations: 7.938 kB / 0.6765 GB, free: 1.023 MB / 490.7 MB Notification: Performance of matching and sorting (n=123) (initialization_lambda0): time 0.003185/0.4933, allocations: 1.309 MB / 0.6778 GB, free: 15.7 MB / 0.4948 GB Notification: Performance of prepare postOptimizeDAE: time 3.626e-05/0.4934, allocations: 45.62 kB / 0.6779 GB, free: 15.65 MB / 0.4948 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.571e-05/0.4934, allocations: 8 kB / 0.6779 GB, free: 15.64 MB / 0.4948 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.456e-05/0.4934, allocations: 16 kB / 0.6779 GB, free: 15.62 MB / 0.4948 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009721/0.4944, allocations: 264.2 kB / 0.6781 GB, free: 15.37 MB / 0.4948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.896e-05/0.4945, allocations: 23.92 kB / 0.6782 GB, free: 15.34 MB / 0.4948 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001234/0.4957, allocations: 132.4 kB / 0.6783 GB, free: 15.21 MB / 0.4948 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001002/0.4958, allocations: 55.97 kB / 0.6783 GB, free: 15.16 MB / 0.4948 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 49 * Number of states: 0 () * Number of discrete variables: 6 (TSet.count,$PRE.TSet.count,TSet.T_start,$PRE.TSet.T_start,$whenCondition1,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (121): * Single equations (assignments): 119 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0002882/0.4961, allocations: 254.6 kB / 0.6786 GB, free: 14.91 MB / 0.4948 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000348/0.4965, allocations: 165.9 kB / 0.6787 GB, free: 14.74 MB / 0.4948 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003074/0.4995, allocations: 1.163 MB / 0.6799 GB, free: 13.57 MB / 0.4948 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.147e-05/0.4996, allocations: 15.98 kB / 0.6799 GB, free: 13.55 MB / 0.4948 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.025e-05/0.4996, allocations: 3.938 kB / 0.6799 GB, free: 13.55 MB / 0.4948 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002242/0.5018, allocations: 1.002 MB / 0.6809 GB, free: 12.49 MB / 0.4948 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 0.006036/0.5079, allocations: 2.475 MB / 0.6833 GB, free: 9.945 MB / 0.4948 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.201e-05/0.5079, allocations: 16.05 kB / 0.6833 GB, free: 9.93 MB / 0.4948 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008057/0.5087, allocations: 155.7 kB / 0.6834 GB, free: 9.777 MB / 0.4948 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001698/0.5089, allocations: 28.84 kB / 0.6835 GB, free: 9.746 MB / 0.4948 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.423e-05/0.509, allocations: 27.92 kB / 0.6835 GB, free: 9.719 MB / 0.4948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001085/0.5101, allocations: 1.324 MB / 0.6848 GB, free: 8.262 MB / 0.4948 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.927e-06/0.5101, allocations: 4.031 kB / 0.6848 GB, free: 8.258 MB / 0.4948 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.4228/0.9329, allocations: 39.19 MB / 0.7231 GB, free: 136.4 MB / 0.5105 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004849/0.9334, allocations: 332 kB / 0.7234 GB, free: 136.2 MB / 0.5105 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001997/0.9336, allocations: 23.83 kB / 0.7234 GB, free: 136.2 MB / 0.5105 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009267/0.9346, allocations: 112.6 kB / 0.7235 GB, free: 136.1 MB / 0.5105 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000106/0.9347, allocations: 55.36 kB / 0.7236 GB, free: 136.1 MB / 0.5105 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.415e-05/0.9347, allocations: 36.53 kB / 0.7236 GB, free: 136.1 MB / 0.5105 GB Notification: Performance of sorting global known variables: time 0.001214/0.936, allocations: 1.075 MB / 0.7247 GB, free: 135.5 MB / 0.5105 GB Notification: Performance of sort global known variables: time 1.8e-07/0.936, allocations: 0 / 0.7247 GB, free: 135.5 MB / 0.5105 GB Notification: Performance of remove unused functions: time 0.004267/0.9403, allocations: 1.381 MB / 0.726 GB, free: 134.9 MB / 0.5105 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 6 (vol.dynBal.U,mov.filter.s[1],mov.filter.s[2],conPI.I.y,THeaOut.T,coo.outCon.T) * Number of discrete variables: 3 ($whenCondition1,TSet.T_start,TSet.count) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (71): * Single equations (assignments): 62 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 6 * When equations: 2 * 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): 1 system {(1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001581/0.9418, allocations: 0.7741 MB / 0.7268 GB, free: 134.5 MB / 0.5105 GB Notification: Performance of simCode: created initialization part: time 0.003319/0.9452, allocations: 1.667 MB / 0.7284 GB, free: 132.8 MB / 0.5105 GB Notification: Performance of simCode: created event and clocks part: time 3.787e-06/0.9452, allocations: 0 / 0.7284 GB, free: 132.8 MB / 0.5105 GB Notification: Performance of simCode: created simulation system equations: time 0.001105/0.9463, allocations: 0.5717 MB / 0.7289 GB, free: 132.2 MB / 0.5105 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002932/0.9492, allocations: 0.7196 MB / 0.7296 GB, free: 131.5 MB / 0.5105 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00495/0.9542, allocations: 4.258 MB / 0.7338 GB, free: 127.2 MB / 0.5105 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005754/0.9548, allocations: 1.393 MB / 0.7352 GB, free: 125.8 MB / 0.5105 GB Notification: Performance of simCode: alias equations: time 0.002094/0.9569, allocations: 477.7 kB / 0.7356 GB, free: 125.3 MB / 0.5105 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006436/0.9576, allocations: 155.4 kB / 0.7358 GB, free: 125.2 MB / 0.5105 GB Notification: Performance of SimCode: time 5.11e-07/0.9576, allocations: 3.938 kB / 0.7358 GB, free: 125.2 MB / 0.5105 GB Notification: Performance of Templates: time 0.05094/1.009, allocations: 41.91 MB / 0.7767 GB, free: 83.63 MB / 0.5105 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T.makefile (rm -f IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T.sim & ./IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.HeatExchangers.Examples.WaterCooler_T.pipe 2>&1)