Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.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.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain,tolerance=1e-06,outputFormat="empty",numberOfIntervals=20160,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain") translateModel(IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain,tolerance=1e-06,outputFormat="empty",numberOfIntervals=20160,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001279/0.001279, allocations: 107.3 kB / 16.41 MB, free: 6.496 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00136/0.00136, allocations: 187 kB / 17.34 MB, free: 5.762 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.39/1.39, allocations: 222.9 MB / 241 MB, free: 15.14 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.8246/0.8246, allocations: 135.1 MB / 426.3 MB, free: 4.098 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002343/0.002343, allocations: 61.73 kB / 0.5863 GB, free: 21.63 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1781/0.1804, allocations: 80.92 MB / 0.6653 GB, free: 5.77 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain): time 0.5843/0.7648, allocations: 202.1 MB / 0.8627 GB, free: 3.922 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.01504/0.7799, allocations: 10.16 MB / 0.8726 GB, free: 10.87 MB / 0.6387 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002064/0.782, allocations: 67.62 kB / 0.8727 GB, free: 10.8 MB / 0.6387 GB Notification: Performance of NFTyping.typeComponents: time 0.003263/0.7853, allocations: 2.719 MB / 0.8753 GB, free: 8.078 MB / 0.6387 GB Notification: Performance of NFTyping.typeBindings: time 0.005064/0.7904, allocations: 2.753 MB / 0.878 GB, free: 5.316 MB / 0.6387 GB Notification: Performance of NFTyping.typeClassSections: time 0.003492/0.7939, allocations: 1.465 MB / 0.8795 GB, free: 3.863 MB / 0.6387 GB Notification: Performance of NFFlatten.flatten: time 0.004709/0.7986, allocations: 3.985 MB / 0.8833 GB, free: 15.87 MB / 0.6544 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002533/0.8011, allocations: 2.149 MB / 0.8854 GB, free: 13.67 MB / 0.6544 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002716/0.8039, allocations: 1.721 MB / 0.8871 GB, free: 11.95 MB / 0.6544 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00283/0.8067, allocations: 2.344 MB / 0.8894 GB, free: 9.609 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 0.0003202/0.807, allocations: 184 kB / 0.8896 GB, free: 9.43 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002951/0.81, allocations: 1.505 MB / 0.8911 GB, free: 7.922 MB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.0007245/0.8107, allocations: 0.8862 MB / 0.8919 GB, free: 7.035 MB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.001138/0.8119, allocations: 1.289 MB / 0.8932 GB, free: 5.738 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.004119/0.816, allocations: 3.761 MB / 0.8969 GB, free: 1.965 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 4.348e-06/0.816, allocations: 0 / 0.8969 GB, free: 1.965 MB / 0.6544 GB Notification: Performance of FrontEnd: time 1.794e-06/0.816, allocations: 0 / 0.8969 GB, free: 1.965 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 3.785e-05/0.8161, allocations: 0 / 0.8969 GB, free: 1.965 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 315 * Number of variables: 315 Notification: Performance of Generate backend data structure: time 0.004745/0.8208, allocations: 3.296 MB / 0.9001 GB, free: 14.6 MB / 0.67 GB Notification: Performance of prepare preOptimizeDAE: time 4.292e-05/0.8209, allocations: 13.11 kB / 0.9001 GB, free: 14.59 MB / 0.67 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001621/0.8225, allocations: 459.7 kB / 0.9005 GB, free: 14.14 MB / 0.67 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002257/0.8248, allocations: 1.592 MB / 0.9021 GB, free: 12.48 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001723/0.825, allocations: 136.1 kB / 0.9022 GB, free: 12.34 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001905/0.8252, allocations: 135.9 kB / 0.9023 GB, free: 12.21 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002563/0.8277, allocations: 1.515 MB / 0.9038 GB, free: 10.64 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.883e-05/0.8278, allocations: 0 / 0.9038 GB, free: 10.64 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001204/0.8279, allocations: 55.98 kB / 0.9039 GB, free: 10.59 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.017e-05/0.828, allocations: 46.44 kB / 0.9039 GB, free: 10.54 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002209/0.8302, allocations: 1.255 MB / 0.9051 GB, free: 9.281 MB / 0.67 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 0.008084/0.8383, allocations: 6.501 MB / 0.9115 GB, free: 2.348 MB / 0.67 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002039/0.8403, allocations: 1.195 MB / 0.9127 GB, free: 1.137 MB / 0.67 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001067/0.8414, allocations: 0.6746 MB / 0.9133 GB, free: 468 kB / 0.67 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004172/0.8418, allocations: 300.3 kB / 0.9136 GB, free: 108 kB / 0.67 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001101/0.8429, allocations: 0.6725 MB / 0.9143 GB, free: 15.42 MB / 0.6856 GB Notification: Performance of pre-optimization done (n=113): time 3.036e-06/0.8429, allocations: 4 kB / 0.9143 GB, free: 15.42 MB / 0.6856 GB Notification: Performance of matching and sorting (n=113): time 0.004635/0.8476, allocations: 2.367 MB / 0.9166 GB, free: 13 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.251e-05/0.8477, allocations: 68.34 kB / 0.9166 GB, free: 12.92 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003881/0.8516, allocations: 4.039 MB / 0.9206 GB, free: 8.867 MB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 9.731e-05/0.8517, allocations: 49.7 kB / 0.9206 GB, free: 8.812 MB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.001023/0.8527, allocations: 1.295 MB / 0.9219 GB, free: 7.508 MB / 0.6856 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003102/0.853, allocations: 378.7 kB / 0.9223 GB, free: 7.133 MB / 0.6856 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003073/0.8533, allocations: 214.9 kB / 0.9225 GB, free: 6.918 MB / 0.6856 GB Notification: Performance of setup shared object (initialization): time 0.0001352/0.8535, allocations: 353.9 kB / 0.9228 GB, free: 6.566 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008923/0.8544, allocations: 0.4944 MB / 0.9233 GB, free: 6.07 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001056/0.8554, allocations: 0.7495 MB / 0.924 GB, free: 5.23 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001852/0.8573, allocations: 1.255 MB / 0.9252 GB, free: 3.898 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.982e-06/0.8573, allocations: 4 kB / 0.9252 GB, free: 3.895 MB / 0.6856 GB Notification: Performance of matching and sorting (n=156) (initialization): time 0.002871/0.8602, allocations: 1.761 MB / 0.927 GB, free: 2.113 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 1.975e-05/0.8602, allocations: 8 kB / 0.927 GB, free: 2.105 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.481e-05/0.8602, allocations: 11.94 kB / 0.927 GB, free: 2.094 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005555/0.8608, allocations: 225.7 kB / 0.9272 GB, free: 1.867 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008629/0.8617, allocations: 239.6 kB / 0.9274 GB, free: 1.633 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004339/0.866, allocations: 4.609 MB / 0.9319 GB, free: 12.75 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009504/0.867, allocations: 149.2 kB / 0.9321 GB, free: 12.61 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.567e-05/0.8671, allocations: 52 kB / 0.9321 GB, free: 12.55 MB / 0.7012 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 27 * Number of states: 0 () * Number of discrete variables: 35 (assEqu.nFai,$PRE.assEqu.nFai,$whenCondition8,$PRE.intGai.nextTimeEvent,$whenCondition7,$PRE.reference.nextTimeEvent,$whenCondition6,$PRE.outdoorTemp.nextTimeEvent,$whenCondition5,$PRE.tableSolRadWindow.nextTimeEvent,$whenCondition4,$PRE.ventRate.nextTimeEvent,$whenCondition3,$whenCondition1,mean.y_last,$PRE.mean.y_last,assEqu.satisfied,$PRE.assEqu.satisfied,reference.nextTimeEventScaled,$PRE.reference.nextTimeEventScaled,reference.nextTimeEvent,$whenCondition2,ventRate.nextTimeEventScaled,$PRE.ventRate.nextTimeEventScaled,ventRate.nextTimeEvent,greaterThreshold1.y,tableSolRadWindow.nextTimeEventScaled,$PRE.tableSolRadWindow.nextTimeEventScaled,tableSolRadWindow.nextTimeEvent,outdoorTemp.nextTimeEventScaled,$PRE.outdoorTemp.nextTimeEventScaled,outdoorTemp.nextTimeEvent,intGai.nextTimeEventScaled,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (138): * Single equations (assignments): 136 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(2,14,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0009957/0.8681, allocations: 0.8019 MB / 0.9329 GB, free: 11.75 MB / 0.7012 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002919/0.8684, allocations: 272.5 kB / 0.9332 GB, free: 11.48 MB / 0.7012 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002676/0.8711, allocations: 1.64 MB / 0.9348 GB, free: 9.812 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.077e-06/0.8711, allocations: 11.94 kB / 0.9348 GB, free: 9.801 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.572e-06/0.8711, allocations: 8 kB / 0.9348 GB, free: 9.793 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002178/0.8733, allocations: 1.428 MB / 0.9362 GB, free: 8.309 MB / 0.7012 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005055/0.8783, allocations: 3.594 MB / 0.9397 GB, free: 4.633 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.59e-06/0.8784, allocations: 4 kB / 0.9397 GB, free: 4.629 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007332/0.8791, allocations: 167.9 kB / 0.9399 GB, free: 4.465 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004688/0.8796, allocations: 205.6 kB / 0.94 GB, free: 4.258 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.032e-05/0.8797, allocations: 31.97 kB / 0.9401 GB, free: 4.227 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004328/0.884, allocations: 4.634 MB / 0.9446 GB, free: 15.32 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.09e-06/0.884, allocations: 4.031 kB / 0.9446 GB, free: 15.32 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003733/0.8878, allocations: 2.368 MB / 0.9469 GB, free: 12.91 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006387/0.8884, allocations: 437.3 kB / 0.9473 GB, free: 12.46 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002046/0.8886, allocations: 32 kB / 0.9474 GB, free: 12.43 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007201/0.8894, allocations: 51.89 kB / 0.9474 GB, free: 12.38 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002114/0.8896, allocations: 100.8 kB / 0.9475 GB, free: 12.28 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.784e-05/0.8897, allocations: 43.97 kB / 0.9476 GB, free: 12.23 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.003152/0.8928, allocations: 2.933 MB / 0.9504 GB, free: 9.305 MB / 0.7169 GB Notification: Performance of sort global known variables: time 1.71e-07/0.8928, allocations: 0 / 0.9504 GB, free: 9.305 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.001509/0.8943, allocations: 0.5107 MB / 0.9509 GB, free: 8.793 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 7 (thermalZoneTwoElements.volMoiAir.dynBal.U,thermalZoneTwoElements.volMoiAir.dynBal.m,thermalZoneTwoElements.volMoiAir.dynBal.mXi[1],thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[1].T,assEqu.diff,mean.x) * Number of discrete variables: 22 ($whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,intGai.nextTimeEvent,intGai.nextTimeEventScaled,reference.nextTimeEvent,reference.nextTimeEventScaled,outdoorTemp.nextTimeEvent,outdoorTemp.nextTimeEventScaled,tableSolRadWindow.nextTimeEvent,tableSolRadWindow.nextTimeEventScaled,greaterThreshold1.y,ventRate.nextTimeEvent,ventRate.nextTimeEventScaled,assEqu.satisfied,assEqu.nFai,mean.y_last) * Number of discrete states: 13 (intGai.nextTimeEvent,reference.nextTimeEvent,outdoorTemp.nextTimeEvent,tableSolRadWindow.nextTimeEvent,ventRate.nextTimeEvent,mean.x,assEqu.satisfied,assEqu.nFai,ventRate.nextTimeEventScaled,tableSolRadWindow.nextTimeEventScaled,outdoorTemp.nextTimeEventScaled,reference.nextTimeEventScaled,intGai.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (95): * Single equations (assignments): 81 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 12 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(2,14,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001366/0.8957, allocations: 0.5973 MB / 0.9515 GB, free: 8.383 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.002618/0.8983, allocations: 1.537 MB / 0.953 GB, free: 6.816 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 4.478e-06/0.8984, allocations: 0 / 0.953 GB, free: 6.816 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.001388/0.8998, allocations: 0.9256 MB / 0.9539 GB, free: 5.867 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00225/0.902, allocations: 0.6001 MB / 0.9545 GB, free: 5.301 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007439/0.9095, allocations: 5.786 MB / 0.9601 GB, free: 15.46 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001495/0.911, allocations: 1.901 MB / 0.962 GB, free: 13.53 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003385/0.9113, allocations: 119.4 kB / 0.9621 GB, free: 13.41 MB / 0.7325 GB Notification: Performance of SimCode: time 3.51e-07/0.9113, allocations: 0 / 0.9621 GB, free: 13.41 MB / 0.7325 GB Notification: Performance of Templates: time 0.06258/0.9739, allocations: 50.74 MB / 1.012 GB, free: 10.7 MB / 0.7794 GB make -j1 -f IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.makefile (rm -f IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.pipe ; mkfifo IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.pipe >> ../files/IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.sim & ./IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.pipe 2>&1)