Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_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/IDEAS 3.0.0/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 IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T") translateModel(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001608/0.001608, allocations: 183.2 kB / 15.98 MB, free: 5.77 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.806/0.806, allocations: 132.2 MB / 148.9 MB, free: 12.12 MB / 122.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.357/1.357, allocations: 222.9 MB / 403.4 MB, free: 7.062 MB / 314.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001035/0.001035, allocations: 112.8 kB / 484.4 MB, free: 8.707 MB / 394.7 MB Notification: Performance of FrontEnd - loaded program: time 0.001018/0.001018, allocations: 51.92 kB / 0.5618 GB, free: 71.06 MB / 426.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1227/0.1237, allocations: 80.21 MB / 0.6402 GB, free: 6.785 MB / 442.7 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T): time 0.05068/0.1745, allocations: 52.92 MB / 0.6918 GB, free: 1.672 MB / 490.7 MB Notification: Performance of NFInst.instExpressions: time 0.3045/0.479, allocations: 15.28 MB / 0.7068 GB, free: 11.48 MB / 490.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002823/0.4819, allocations: 80.16 kB / 0.7068 GB, free: 11.48 MB / 490.7 MB Notification: Performance of NFTyping.typeComponents: time 0.003026/0.4849, allocations: 0.9452 MB / 0.7078 GB, free: 11.45 MB / 490.7 MB Notification: Performance of NFTyping.typeBindings: time 0.006177/0.4911, allocations: 2.156 MB / 0.7099 GB, free: 11.35 MB / 490.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.005686/0.4968, allocations: 2.01 MB / 0.7118 GB, free: 11.29 MB / 490.7 MB Notification: Performance of NFFlatten.flatten: time 0.00777/0.5046, allocations: 6.043 MB / 0.7177 GB, free: 10.82 MB / 490.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.002288/0.5069, allocations: 1.394 MB / 0.7191 GB, free: 10.29 MB / 490.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003327/0.5103, allocations: 1.691 MB / 0.7207 GB, free: 9.641 MB / 490.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002173/0.5125, allocations: 1.364 MB / 0.7221 GB, free: 9.16 MB / 490.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0002665/0.5127, allocations: 87.94 kB / 0.7222 GB, free: 9.16 MB / 490.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004048/0.5168, allocations: 1.726 MB / 0.7238 GB, free: 8.684 MB / 490.7 MB Notification: Performance of NFScalarize.scalarize: time 0.000491/0.5173, allocations: 467.6 kB / 0.7243 GB, free: 8.473 MB / 490.7 MB Notification: Performance of NFVerifyModel.verify: time 0.001178/0.5185, allocations: 0.9548 MB / 0.7252 GB, free: 7.906 MB / 490.7 MB Notification: Performance of NFConvertDAE.convert: time 0.005001/0.5235, allocations: 3.219 MB / 0.7284 GB, free: 6.84 MB / 490.7 MB Notification: Performance of FrontEnd - DAE generated: time 6.021e-06/0.5235, allocations: 4 kB / 0.7284 GB, free: 6.836 MB / 490.7 MB Notification: Performance of FrontEnd: time 1.082e-06/0.5235, allocations: 0 / 0.7284 GB, free: 6.836 MB / 490.7 MB Notification: Performance of Transformations before backend: time 6.447e-05/0.5236, allocations: 0 / 0.7284 GB, free: 6.836 MB / 490.7 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 0.00478/0.5284, allocations: 2.526 MB / 0.7308 GB, free: 4.984 MB / 490.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.121e-05/0.5285, allocations: 8.594 kB / 0.7308 GB, free: 4.984 MB / 490.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002167/0.5306, allocations: 452.2 kB / 0.7313 GB, free: 4.777 MB / 490.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003291/0.5339, allocations: 1.651 MB / 0.7329 GB, free: 3.578 MB / 490.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003673/0.5343, allocations: 145 kB / 0.733 GB, free: 3.516 MB / 490.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001969/0.5345, allocations: 123.1 kB / 0.7331 GB, free: 3.477 MB / 490.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002536/0.5371, allocations: 1.354 MB / 0.7345 GB, free: 2.582 MB / 490.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.312e-05/0.5371, allocations: 3.719 kB / 0.7345 GB, free: 2.582 MB / 490.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001056/0.5372, allocations: 48.34 kB / 0.7345 GB, free: 2.547 MB / 490.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.359e-05/0.5373, allocations: 38.3 kB / 0.7346 GB, free: 2.543 MB / 490.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002555/0.5398, allocations: 1.096 MB / 0.7356 GB, free: 2.004 MB / 490.7 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 0.009061/0.5489, allocations: 6.962 MB / 0.7424 GB, free: 11.85 MB / 0.4948 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002477/0.5514, allocations: 1.381 MB / 0.7438 GB, free: 10.81 MB / 0.4948 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009913/0.5524, allocations: 418.2 kB / 0.7442 GB, free: 10.62 MB / 0.4948 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00513/0.5576, allocations: 3.094 MB / 0.7472 GB, free: 7.766 MB / 0.4948 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001049/0.5586, allocations: 453 kB / 0.7476 GB, free: 7.5 MB / 0.4948 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.000542/0.5592, allocations: 83.38 kB / 0.7477 GB, free: 7.449 MB / 0.4948 GB Notification: Performance of pre-optimization done (n=61): time 2.685e-06/0.5592, allocations: 4 kB / 0.7477 GB, free: 7.445 MB / 0.4948 GB Notification: Performance of matching and sorting (n=61): time 0.003144/0.5623, allocations: 1.223 MB / 0.7489 GB, free: 6.785 MB / 0.4948 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.31e-05/0.5624, allocations: 61.55 kB / 0.749 GB, free: 6.715 MB / 0.4948 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002097/0.5645, allocations: 1.514 MB / 0.7504 GB, free: 5.914 MB / 0.4948 GB Notification: Performance of collectPreVariables (initialization): time 7.983e-05/0.5646, allocations: 39.08 kB / 0.7505 GB, free: 5.875 MB / 0.4948 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008481/0.5655, allocations: 0.8908 MB / 0.7513 GB, free: 5.09 MB / 0.4948 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002317/0.5657, allocations: 222.6 kB / 0.7516 GB, free: 4.906 MB / 0.4948 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003453/0.5661, allocations: 210.2 kB / 0.7518 GB, free: 4.781 MB / 0.4948 GB Notification: Performance of setup shared object (initialization): time 0.0001236/0.5662, allocations: 341.4 kB / 0.7521 GB, free: 4.449 MB / 0.4948 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009593/0.5672, allocations: 384.5 kB / 0.7525 GB, free: 4.27 MB / 0.4948 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001198/0.5684, allocations: 0.753 MB / 0.7532 GB, free: 3.59 MB / 0.4948 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002094/0.5705, allocations: 1.133 MB / 0.7543 GB, free: 2.32 MB / 0.4948 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.114e-05/0.5705, allocations: 4 kB / 0.7543 GB, free: 2.316 MB / 0.4948 GB Notification: Performance of matching and sorting (n=123) (initialization): time 0.003004/0.5735, allocations: 1.297 MB / 0.7556 GB, free: 1.016 MB / 0.4948 GB Notification: Performance of prepare postOptimizeDAE: time 4.352e-05/0.5736, allocations: 43.25 kB / 0.7556 GB, free: 0.9688 MB / 0.4948 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.625e-05/0.5736, allocations: 12 kB / 0.7556 GB, free: 0.957 MB / 0.4948 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.583e-05/0.5736, allocations: 16 kB / 0.7556 GB, free: 0.9414 MB / 0.4948 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001022/0.5746, allocations: 260.2 kB / 0.7559 GB, free: 0.6875 MB / 0.4948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.511e-05/0.5747, allocations: 23.92 kB / 0.7559 GB, free: 0.6641 MB / 0.4948 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001442/0.5761, allocations: 117.3 kB / 0.756 GB, free: 0.5508 MB / 0.4948 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001053/0.5763, allocations: 51.98 kB / 0.7561 GB, free: 0.5 MB / 0.4948 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001558/0.5778, allocations: 0.6859 MB / 0.7567 GB, free: 15.81 MB / 0.5105 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001189/0.579, allocations: 0.7475 MB / 0.7575 GB, free: 14.9 MB / 0.5105 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002115/0.5811, allocations: 1.089 MB / 0.7585 GB, free: 13.65 MB / 0.5105 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.563e-06/0.5812, allocations: 8 kB / 0.7585 GB, free: 13.64 MB / 0.5105 GB Notification: Performance of matching and sorting (n=123) (initialization_lambda0): time 0.002961/0.5841, allocations: 1.266 MB / 0.7598 GB, free: 12.36 MB / 0.5105 GB Notification: Performance of prepare postOptimizeDAE: time 3.809e-05/0.5842, allocations: 41.62 kB / 0.7598 GB, free: 12.32 MB / 0.5105 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.431e-05/0.5842, allocations: 12.59 kB / 0.7598 GB, free: 12.3 MB / 0.5105 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.639e-05/0.5842, allocations: 16 kB / 0.7598 GB, free: 12.29 MB / 0.5105 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001012/0.5853, allocations: 263.5 kB / 0.7601 GB, free: 12.04 MB / 0.5105 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.216e-05/0.5853, allocations: 19.94 kB / 0.7601 GB, free: 12.02 MB / 0.5105 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00145/0.5867, allocations: 124.4 kB / 0.7602 GB, free: 11.89 MB / 0.5105 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001112/0.5869, allocations: 51.98 kB / 0.7603 GB, free: 11.84 MB / 0.5105 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 0.0002887/0.5872, allocations: 253.4 kB / 0.7605 GB, free: 11.59 MB / 0.5105 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004133/0.5876, allocations: 165.9 kB / 0.7607 GB, free: 11.43 MB / 0.5105 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002901/0.5905, allocations: 1.12 MB / 0.7618 GB, free: 10.3 MB / 0.5105 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.687e-05/0.5905, allocations: 11.94 kB / 0.7618 GB, free: 10.29 MB / 0.5105 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.111e-05/0.5905, allocations: 4 kB / 0.7618 GB, free: 10.28 MB / 0.5105 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002043/0.5926, allocations: 0.9666 MB / 0.7627 GB, free: 9.262 MB / 0.5105 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 0.005501/0.5981, allocations: 2.403 MB / 0.7651 GB, free: 6.812 MB / 0.5105 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.16e-06/0.5981, allocations: 0 / 0.7651 GB, free: 6.812 MB / 0.5105 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007649/0.5989, allocations: 151.8 kB / 0.7652 GB, free: 6.664 MB / 0.5105 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001606/0.5991, allocations: 28.84 kB / 0.7653 GB, free: 6.633 MB / 0.5105 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.605e-05/0.5991, allocations: 23.98 kB / 0.7653 GB, free: 6.609 MB / 0.5105 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009744/0.6001, allocations: 1.322 MB / 0.7666 GB, free: 5.16 MB / 0.5105 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.154e-06/0.6001, allocations: 0 / 0.7666 GB, free: 5.16 MB / 0.5105 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.147/0.7471, allocations: 29.84 MB / 0.7957 GB, free: 7.094 MB / 0.5417 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009365/0.7481, allocations: 342.5 kB / 0.796 GB, free: 6.738 MB / 0.5417 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004601/0.7486, allocations: 12 kB / 0.796 GB, free: 6.727 MB / 0.5417 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001204/0.7498, allocations: 107.9 kB / 0.7961 GB, free: 6.621 MB / 0.5417 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001438/0.75, allocations: 52.48 kB / 0.7962 GB, free: 6.57 MB / 0.5417 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.133e-05/0.7501, allocations: 35.91 kB / 0.7962 GB, free: 6.535 MB / 0.5417 GB Notification: Performance of sorting global known variables: time 0.001924/0.752, allocations: 1.081 MB / 0.7973 GB, free: 5.43 MB / 0.5417 GB Notification: Performance of sort global known variables: time 2e-07/0.752, allocations: 3.938 kB / 0.7973 GB, free: 5.426 MB / 0.5417 GB Notification: Performance of remove unused functions: time 0.00597/0.758, allocations: 1.365 MB / 0.7986 GB, free: 4.059 MB / 0.5417 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,hea.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 0.002139/0.7601, allocations: 0.7518 MB / 0.7994 GB, free: 3.496 MB / 0.5417 GB Notification: Performance of simCode: created initialization part: time 0.003897/0.764, allocations: 1.597 MB / 0.8009 GB, free: 1.875 MB / 0.5417 GB Notification: Performance of simCode: created event and clocks part: time 4.108e-06/0.7641, allocations: 4 kB / 0.8009 GB, free: 1.871 MB / 0.5417 GB Notification: Performance of simCode: created simulation system equations: time 0.001314/0.7654, allocations: 0.5493 MB / 0.8015 GB, free: 1.309 MB / 0.5417 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004139/0.7695, allocations: 0.728 MB / 0.8022 GB, free: 0.582 MB / 0.5417 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007033/0.7766, allocations: 4.256 MB / 0.8063 GB, free: 12.29 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001187/0.7778, allocations: 1.385 MB / 0.8077 GB, free: 10.87 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.002416/0.7802, allocations: 462 kB / 0.8081 GB, free: 10.41 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007293/0.781, allocations: 151.4 kB / 0.8083 GB, free: 10.26 MB / 0.5573 GB Notification: Performance of SimCode: time 9.41e-07/0.781, allocations: 4 kB / 0.8083 GB, free: 10.26 MB / 0.5573 GB Notification: Performance of Templates: time 0.06459/0.8456, allocations: 39.46 MB / 0.8468 GB, free: 3.211 MB / 0.5886 GB make -j1 -f IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.makefile (rm -f IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.pipe ; mkfifo IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.pipe >> ../files/IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.sim & ./IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.pipe 2>&1)