Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.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 3.2.3+maint.om/package.mo", uses=false) 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 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(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1") translateModel(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00887/0.00887, allocations: 104.1 kB / 15.73 MB, free: 6.055 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001588/0.001588, allocations: 195.9 kB / 16.68 MB, free: 5.961 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.556/1.556, allocations: 205.1 MB / 222.6 MB, free: 4.504 MB / 174.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001125/0.001125, allocations: 53.66 kB / 326.5 MB, free: 14.43 MB / 270.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.08304/0.08417, allocations: 46.63 MB / 373.2 MB, free: 1.32 MB / 302.1 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1): time 0.03419/0.1184, allocations: 30.98 MB / 404.2 MB, free: 2.215 MB / 334.1 MB Notification: Performance of NFInst.instExpressions: time 0.01797/0.1364, allocations: 14.27 MB / 418.4 MB, free: 3.902 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001258/0.1378, allocations: 43.69 kB / 418.5 MB, free: 3.859 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001455/0.1392, allocations: 0.5823 MB / 419.1 MB, free: 3.273 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.004634/0.1439, allocations: 2.197 MB / 421.3 MB, free: 1.066 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.007977/0.1519, allocations: 3.677 MB / 424.9 MB, free: 13.38 MB / 366.1 MB Notification: Performance of NFFlatten.flatten: time 0.004887/0.1568, allocations: 3.968 MB / 428.9 MB, free: 9.398 MB / 366.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001426/0.1582, allocations: 1.01 MB / 429.9 MB, free: 8.371 MB / 366.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002467/0.1607, allocations: 1.495 MB / 431.4 MB, free: 6.871 MB / 366.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002252/0.163, allocations: 1.518 MB / 432.9 MB, free: 5.348 MB / 366.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0003161/0.1633, allocations: 151.9 kB / 433.1 MB, free: 5.199 MB / 366.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004567/0.1679, allocations: 2.309 MB / 435.4 MB, free: 2.887 MB / 366.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0006489/0.1685, allocations: 0.5493 MB / 435.9 MB, free: 2.336 MB / 366.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001081/0.1696, allocations: 0.8205 MB / 436.8 MB, free: 1.512 MB / 366.1 MB Notification: Performance of NFConvertDAE.convert: time 0.005507/0.1751, allocations: 3.612 MB / 440.4 MB, free: 13.89 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.947e-06/0.1752, allocations: 0 / 440.4 MB, free: 13.89 MB / 382.1 MB Notification: Performance of FrontEnd: time 1.683e-06/0.1752, allocations: 0 / 440.4 MB, free: 13.89 MB / 382.1 MB Notification: Performance of Transformations before backend: time 3.284e-05/0.1752, allocations: 0 / 440.4 MB, free: 13.89 MB / 382.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 256 * Number of variables: 256 Notification: Performance of Generate backend data structure: time 0.004384/0.1796, allocations: 2.103 MB / 442.5 MB, free: 11.73 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.882e-05/0.1797, allocations: 12.03 kB / 442.5 MB, free: 11.72 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000572/0.1802, allocations: 170.2 kB / 442.6 MB, free: 11.55 MB / 382.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001611/0.1819, allocations: 1.014 MB / 443.7 MB, free: 10.49 MB / 382.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.589e-05/0.1819, allocations: 85.89 kB / 443.7 MB, free: 10.41 MB / 382.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001715/0.1821, allocations: 95.98 kB / 443.8 MB, free: 10.32 MB / 382.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002626/0.1848, allocations: 1.628 MB / 445.5 MB, free: 8.605 MB / 382.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.685e-05/0.1848, allocations: 0 / 445.5 MB, free: 8.605 MB / 382.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000126/0.1849, allocations: 51.97 kB / 445.5 MB, free: 8.555 MB / 382.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001424/0.1851, allocations: 105.9 kB / 445.6 MB, free: 8.449 MB / 382.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002623/0.1877, allocations: 1.647 MB / 447.3 MB, free: 6.805 MB / 382.1 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 0.1916/0.3794, allocations: 6.632 MB / 453.9 MB, free: 73.34 MB / 382.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.002149/0.3815, allocations: 0.9279 MB / 454.8 MB, free: 73.31 MB / 382.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001039/0.3826, allocations: 0.5542 MB / 455.4 MB, free: 73.3 MB / 382.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.004128/0.3868, allocations: 2.814 MB / 458.2 MB, free: 71.75 MB / 382.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.413e-05/0.3868, allocations: 48.34 kB / 458.2 MB, free: 71.71 MB / 382.1 MB Notification: Performance of pre-optimization done (n=80): time 2.455e-06/0.3868, allocations: 1.812 kB / 458.2 MB, free: 71.71 MB / 382.1 MB Notification: Performance of matching and sorting (n=90): time 0.008738/0.3956, allocations: 3.703 MB / 461.9 MB, free: 70.05 MB / 382.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 7.476e-05/0.3957, allocations: 189.5 kB / 462.1 MB, free: 69.84 MB / 382.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001937/0.3976, allocations: 1.308 MB / 463.4 MB, free: 69.31 MB / 382.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0001071/0.3977, allocations: 55.69 kB / 463.5 MB, free: 69.27 MB / 382.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004073/0.3982, allocations: 0.6479 MB / 464.1 MB, free: 68.75 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002193/0.3984, allocations: 325.9 kB / 464.5 MB, free: 68.51 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004359/0.3988, allocations: 286.4 kB / 464.7 MB, free: 68.38 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 4.655e-05/0.3989, allocations: 302.2 kB / 465 MB, free: 68.08 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009345/0.3998, allocations: 0.5882 MB / 465.6 MB, free: 67.86 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001145/0.401, allocations: 1.003 MB / 466.6 MB, free: 67.16 MB / 382.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001905/0.4029, allocations: 1.477 MB / 468.1 MB, free: 66.26 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.008e-05/0.4029, allocations: 5.344 kB / 468.1 MB, free: 66.26 MB / 382.1 MB Notification: Performance of matching and sorting (n=180) (initialization): time 0.003005/0.4059, allocations: 1.9 MB / 470 MB, free: 65.5 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.967e-05/0.406, allocations: 10.59 kB / 470 MB, free: 65.5 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.216e-05/0.406, allocations: 12.38 kB / 470 MB, free: 65.5 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.004389/0.4104, allocations: 0.7688 MB / 470.8 MB, free: 65.27 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001036/0.4114, allocations: 284.3 kB / 471.1 MB, free: 65.2 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001514/0.413, allocations: 2.174 MB / 473.3 MB, free: 63.29 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001188/0.4142, allocations: 67.58 kB / 473.3 MB, free: 63.25 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001128/0.4143, allocations: 68.73 kB / 473.4 MB, free: 63.23 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001164/0.4155, allocations: 0.8431 MB / 474.2 MB, free: 62.75 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0009078/0.4164, allocations: 0.9974 MB / 475.2 MB, free: 61.91 MB / 382.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001501/0.4179, allocations: 1.46 MB / 476.7 MB, free: 60.86 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.573e-06/0.4179, allocations: 3.938 kB / 476.7 MB, free: 60.86 MB / 382.1 MB Notification: Performance of matching and sorting (n=180) (initialization_lambda0): time 0.00261/0.4205, allocations: 1.825 MB / 478.5 MB, free: 59.93 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.677e-05/0.4206, allocations: 11 kB / 478.5 MB, free: 59.93 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.301e-05/0.4206, allocations: 15 kB / 478.5 MB, free: 59.93 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.003556/0.4241, allocations: 0.5968 MB / 479.1 MB, free: 59.62 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009775/0.4251, allocations: 294.4 kB / 479.4 MB, free: 59.55 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001234/0.4264, allocations: 2.015 MB / 481.4 MB, free: 57.72 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001165/0.4276, allocations: 75.55 kB / 481.5 MB, free: 57.68 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001101/0.4277, allocations: 67.08 kB / 481.6 MB, free: 57.66 MB / 382.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 53 * Number of states: 0 () * Number of discrete variables: 12 (tank2.aboveLevel[2],$PRE.tank2.aboveLevel[2],tank2.aboveLevel[1],$PRE.tank2.aboveLevel[1],tank1.aboveLevel[2],$PRE.tank1.aboveLevel[2],tank1.aboveLevel[1],$PRE.tank1.aboveLevel[1],tank2.ports_m_flow_out[2],tank2.ports_m_flow_out[1],tank1.ports_m_flow_out[2],tank1.ports_m_flow_out[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (166): * Single equations (assignments): 163 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 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): 3 systems {(1,3), (2,7), (1,3)} Notification: Performance of prepare postOptimizeDAE: time 0.0004087/0.4281, allocations: 281.1 kB / 481.9 MB, free: 57.41 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002345/0.4283, allocations: 147.2 kB / 482 MB, free: 57.34 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002601/0.4309, allocations: 1.521 MB / 483.5 MB, free: 56.18 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.248e-06/0.431, allocations: 8 kB / 483.5 MB, free: 56.17 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.041e-06/0.431, allocations: 4 kB / 483.5 MB, free: 56.16 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.01e-05/0.431, allocations: 7.266 kB / 483.5 MB, free: 56.16 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003537/0.4345, allocations: 2.798 MB / 486.3 MB, free: 53.3 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.851e-06/0.4346, allocations: 0 / 486.3 MB, free: 53.3 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006048/0.4352, allocations: 155.8 kB / 486.5 MB, free: 53.15 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002376/0.4376, allocations: 0.5743 MB / 487.1 MB, free: 52.57 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.639e-05/0.4376, allocations: 27.5 kB / 487.1 MB, free: 52.54 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001235/0.4389, allocations: 2.122 MB / 489.2 MB, free: 50.35 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.366e-06/0.4389, allocations: 3.984 kB / 489.2 MB, free: 50.35 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002542/0.4414, allocations: 2.096 MB / 491.3 MB, free: 48.21 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0003176/0.4418, allocations: 219.3 kB / 491.5 MB, free: 47.98 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00019/0.442, allocations: 31.91 kB / 491.6 MB, free: 47.95 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007198/0.4427, allocations: 47.95 kB / 491.6 MB, free: 47.9 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000167/0.4429, allocations: 92.88 kB / 491.7 MB, free: 47.81 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.568e-05/0.443, allocations: 45.83 kB / 491.7 MB, free: 47.77 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.001072/0.4441, allocations: 0.9083 MB / 492.6 MB, free: 46.86 MB / 382.1 MB Notification: Performance of sort global known variables: time 1.51e-07/0.4441, allocations: 0 / 492.6 MB, free: 46.86 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.002722/0.4468, allocations: 1.108 MB / 493.8 MB, free: 45.86 MB / 382.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 4 (tank1.level,tank1.medium.T,tank2.level,tank2.medium.T) * Number of discrete variables: 4 (tank1.aboveLevel[1],tank1.aboveLevel[2],tank2.aboveLevel[1],tank2.aboveLevel[2]) * Number of discrete states: 4 (tank1.aboveLevel[1],tank1.aboveLevel[2],tank2.aboveLevel[1],tank2.aboveLevel[2]) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (84): * Single equations (assignments): 81 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 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): 3 systems {(2,12), (1,6), (1,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001855/0.4487, allocations: 0.8386 MB / 494.6 MB, free: 45.17 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.003921/0.4526, allocations: 2.277 MB / 496.9 MB, free: 42.91 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 6.472e-06/0.4526, allocations: 0 / 496.9 MB, free: 42.91 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001055/0.4537, allocations: 0.6876 MB / 497.6 MB, free: 42.22 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002562/0.4562, allocations: 0.6401 MB / 498.2 MB, free: 41.59 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003864/0.4601, allocations: 2.697 MB / 0.4892 GB, free: 38.89 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006658/0.4608, allocations: 1.26 MB / 0.4904 GB, free: 37.6 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.001581/0.4624, allocations: 0.5667 MB / 0.4909 GB, free: 37.03 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003105/0.4627, allocations: 119.4 kB / 0.491 GB, free: 36.91 MB / 382.1 MB Notification: Performance of SimCode: time 6.91e-07/0.4627, allocations: 0 / 0.491 GB, free: 36.91 MB / 382.1 MB Notification: Performance of Templates: time 0.05078/0.5135, allocations: 40.27 MB / 0.5304 GB, free: 12.59 MB / 398.1 MB make -j1 -f Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.makefile (rm -f Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe ; mkfifo Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe ; head -c 1048576 < Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe >> ../files/Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.sim & ./Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Modelica_3.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe 2>&1)