Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_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/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain") translateModel(IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_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 0.0009907/0.0009907, allocations: 91.84 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.008273/0.008273, allocations: 170 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.407/1.407, allocations: 223.2 MB / 240.3 MB, free: 5.344 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7893/0.7893, allocations: 132.3 MB / 423.8 MB, free: 1.957 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003428/0.0003431, allocations: 8.766 kB / 0.504 GB, free: 3.891 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.421/0.4213, allocations: 81.57 MB / 0.5837 GB, free: 4.277 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain): time 0.2232/0.6446, allocations: 197.2 MB / 0.7762 GB, free: 10.71 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.01624/0.6608, allocations: 10.13 MB / 0.7861 GB, free: 0.5664 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002529/0.6634, allocations: 59.56 kB / 0.7861 GB, free: 0.5078 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.003412/0.6668, allocations: 2.615 MB / 0.7887 GB, free: 13.89 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.005282/0.6721, allocations: 2.632 MB / 0.7913 GB, free: 11.25 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.00353/0.6757, allocations: 1.31 MB / 0.7925 GB, free: 9.945 MB / 0.6231 GB Notification: Performance of NFFlatten.flatten: time 0.005782/0.6815, allocations: 4.875 MB / 0.7973 GB, free: 5.062 MB / 0.6231 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002616/0.6841, allocations: 1.827 MB / 0.7991 GB, free: 3.188 MB / 0.6231 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002974/0.6871, allocations: 1.415 MB / 0.8005 GB, free: 1.77 MB / 0.6231 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003268/0.6904, allocations: 2.251 MB / 0.8027 GB, free: 15.51 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.0002671/0.6907, allocations: 68 kB / 0.8027 GB, free: 15.44 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003376/0.694, allocations: 1.578 MB / 0.8043 GB, free: 13.86 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.0009421/0.695, allocations: 0.7846 MB / 0.805 GB, free: 13.07 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.001348/0.6964, allocations: 1.166 MB / 0.8062 GB, free: 11.89 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.004405/0.7008, allocations: 3.624 MB / 0.8097 GB, free: 8.258 MB / 0.6387 GB Notification: Performance of FrontEnd - DAE generated: time 3.427e-06/0.7008, allocations: 0 / 0.8097 GB, free: 8.258 MB / 0.6387 GB Notification: Performance of FrontEnd: time 1.673e-06/0.7008, allocations: 0 / 0.8097 GB, free: 8.258 MB / 0.6387 GB Notification: Performance of Transformations before backend: time 4.719e-05/0.7009, allocations: 0 / 0.8097 GB, free: 8.258 MB / 0.6387 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 0.004486/0.7053, allocations: 2.838 MB / 0.8125 GB, free: 5.352 MB / 0.6387 GB Notification: Performance of prepare preOptimizeDAE: time 3.994e-05/0.7054, allocations: 16.03 kB / 0.8125 GB, free: 5.336 MB / 0.6387 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001699/0.7071, allocations: 455.7 kB / 0.8129 GB, free: 4.887 MB / 0.6387 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002211/0.7093, allocations: 1.553 MB / 0.8145 GB, free: 3.27 MB / 0.6387 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001998/0.7095, allocations: 148.1 kB / 0.8146 GB, free: 3.117 MB / 0.6387 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000244/0.7098, allocations: 136 kB / 0.8147 GB, free: 2.984 MB / 0.6387 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002839/0.7127, allocations: 1.523 MB / 0.8162 GB, free: 1.414 MB / 0.6387 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.586e-05/0.7127, allocations: 0 / 0.8162 GB, free: 1.414 MB / 0.6387 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001279/0.7128, allocations: 52 kB / 0.8163 GB, free: 1.363 MB / 0.6387 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.108e-05/0.7129, allocations: 42.44 kB / 0.8163 GB, free: 1.32 MB / 0.6387 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00234/0.7152, allocations: 1.282 MB / 0.8176 GB, free: 32 kB / 0.6387 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 0.288/1.003, allocations: 6.567 MB / 0.824 GB, free: 216.4 MB / 0.6387 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002434/1.006, allocations: 1.214 MB / 0.8252 GB, free: 215.9 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00124/1.007, allocations: 0.6799 MB / 0.8258 GB, free: 215.6 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003818/1.007, allocations: 295.8 kB / 0.8261 GB, free: 215.4 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001299/1.009, allocations: 0.6929 MB / 0.8268 GB, free: 215.1 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=113): time 3.206e-06/1.009, allocations: 0 / 0.8268 GB, free: 215.1 MB / 0.6387 GB Notification: Performance of matching and sorting (n=113): time 0.005356/1.014, allocations: 2.399 MB / 0.8291 GB, free: 214.2 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.134e-05/1.014, allocations: 67.95 kB / 0.8292 GB, free: 214.1 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004606/1.019, allocations: 4.044 MB / 0.8331 GB, free: 212.7 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 0.0002916/1.019, allocations: 57.5 kB / 0.8332 GB, free: 212.7 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.001018/1.02, allocations: 1.289 MB / 0.8344 GB, free: 211.6 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003947/1.02, allocations: 370.4 kB / 0.8348 GB, free: 211.3 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001632/1.021, allocations: 105.1 kB / 0.8349 GB, free: 211.2 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 8.5e-05/1.021, allocations: 355.1 kB / 0.8352 GB, free: 210.8 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001017/1.022, allocations: 0.5148 MB / 0.8357 GB, free: 210.6 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001041/1.023, allocations: 0.7653 MB / 0.8365 GB, free: 210.1 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001952/1.025, allocations: 1.28 MB / 0.8377 GB, free: 209.3 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.133e-06/1.025, allocations: 1.312 kB / 0.8377 GB, free: 209.3 MB / 0.6387 GB Notification: Performance of matching and sorting (n=156) (initialization): time 0.003327/1.028, allocations: 1.809 MB / 0.8395 GB, free: 208.4 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 2.849e-05/1.028, allocations: 10.67 kB / 0.8395 GB, free: 208.4 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.858e-05/1.028, allocations: 6.75 kB / 0.8395 GB, free: 208.4 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006242/1.029, allocations: 219.2 kB / 0.8397 GB, free: 208.3 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009833/1.03, allocations: 253.3 kB / 0.84 GB, free: 208.2 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003662/1.033, allocations: 4.197 MB / 0.8441 GB, free: 204.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001817/1.035, allocations: 205.8 kB / 0.8443 GB, free: 204.4 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002635/1.036, allocations: 44 kB / 0.8443 GB, free: 204.4 MB / 0.6387 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 0.0023/1.038, allocations: 0.8129 MB / 0.8451 GB, free: 203.9 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009071/1.039, allocations: 278.5 kB / 0.8454 GB, free: 203.8 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00351/1.042, allocations: 1.66 MB / 0.847 GB, free: 202.9 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.132e-05/1.042, allocations: 15.84 kB / 0.847 GB, free: 202.9 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.549e-05/1.042, allocations: 3.969 kB / 0.847 GB, free: 202.9 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002111/1.045, allocations: 1.435 MB / 0.8484 GB, free: 202.1 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00645/1.051, allocations: 3.629 MB / 0.852 GB, free: 199.8 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.851e-06/1.051, allocations: 0 / 0.852 GB, free: 199.8 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007718/1.052, allocations: 176.2 kB / 0.8521 GB, free: 199.8 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004889/1.052, allocations: 211.1 kB / 0.8523 GB, free: 199.7 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.267e-05/1.052, allocations: 30.27 kB / 0.8524 GB, free: 199.7 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003405/1.056, allocations: 4.208 MB / 0.8565 GB, free: 195.4 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.945e-06/1.056, allocations: 3.938 kB / 0.8565 GB, free: 195.4 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003897/1.06, allocations: 2.403 MB / 0.8588 GB, free: 193 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009446/1.061, allocations: 449.2 kB / 0.8592 GB, free: 192.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003705/1.061, allocations: 27.98 kB / 0.8593 GB, free: 192.5 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001123/1.062, allocations: 111.8 kB / 0.8594 GB, free: 192.4 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000209/1.062, allocations: 92.86 kB / 0.8595 GB, free: 192.3 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.345e-05/1.063, allocations: 43.97 kB / 0.8595 GB, free: 192.3 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.00287/1.065, allocations: 2.929 MB / 0.8624 GB, free: 189.3 MB / 0.6387 GB Notification: Performance of sort global known variables: time 2.3e-07/1.065, allocations: 0 / 0.8624 GB, free: 189.3 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.001712/1.067, allocations: 0.5226 MB / 0.8629 GB, free: 188.8 MB / 0.6387 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 0.00136/1.068, allocations: 0.6071 MB / 0.8635 GB, free: 188.5 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.002596/1.071, allocations: 1.565 MB / 0.865 GB, free: 186.9 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 4.248e-06/1.071, allocations: 0 / 0.865 GB, free: 186.9 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.001355/1.072, allocations: 0.9316 MB / 0.8659 GB, free: 185.9 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003492/1.076, allocations: 0.5577 MB / 0.8665 GB, free: 185.4 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007754/1.084, allocations: 6.679 MB / 0.873 GB, free: 178.7 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001794/1.086, allocations: 1.914 MB / 0.8748 GB, free: 176.7 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.001337/1.087, allocations: 327 kB / 0.8752 GB, free: 176.4 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004073/1.087, allocations: 115.4 kB / 0.8753 GB, free: 176.3 MB / 0.6387 GB Notification: Performance of SimCode: time 1.083e-06/1.087, allocations: 0 / 0.8753 GB, free: 176.3 MB / 0.6387 GB Notification: Performance of Templates: time 0.03913/1.127, allocations: 24.12 MB / 0.8988 GB, free: 152.5 MB / 0.6387 GB make -j1 -f IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.makefile (rm -f IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.pipe ; mkfifo IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.pipe ; head -c 1048576 < IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.pipe >> ../files/IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.sim & ./IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.ThermalZones.ReducedOrder.Validation.RoomWithoutLatentGain.pipe 2>&1)