Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler.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.DrumBoiler.DrumBoiler,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler") translateModel(Modelica.Fluid.Examples.DrumBoiler.DrumBoiler,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001135/0.001135, allocations: 91.22 kB / 16.65 MB, free: 6.59 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001474/0.001474, allocations: 184.7 kB / 17.56 MB, free: 6.199 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.532/1.532, allocations: 205.4 MB / 223.7 MB, free: 13.08 MB / 190.1 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 0.0004666/0.0004669, allocations: 8 kB / 280.7 MB, free: 3.426 MB / 222.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1073/0.1078, allocations: 47.59 MB / 328.3 MB, free: 3.762 MB / 270.1 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.DrumBoiler.DrumBoiler): time 0.04562/0.1535, allocations: 48.09 MB / 376.4 MB, free: 3.504 MB / 318.1 MB Notification: Performance of NFInst.instExpressions: time 0.2383/0.3918, allocations: 21.84 MB / 398.2 MB, free: 9.547 MB / 318.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0009871/0.3929, allocations: 21.84 kB / 398.3 MB, free: 9.547 MB / 318.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001186/0.3941, allocations: 334.2 kB / 398.6 MB, free: 9.535 MB / 318.1 MB Notification: Performance of NFTyping.typeBindings: time 0.01603/0.4101, allocations: 3.915 MB / 402.5 MB, free: 9.301 MB / 318.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.007494/0.4176, allocations: 1.882 MB / 404.4 MB, free: 8.977 MB / 318.1 MB Notification: Performance of NFFlatten.flatten: time 0.002978/0.4206, allocations: 1.89 MB / 406.3 MB, free: 8.688 MB / 318.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0008737/0.4215, allocations: 435.7 kB / 406.7 MB, free: 8.621 MB / 318.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.01135/0.4329, allocations: 5.589 MB / 412.3 MB, free: 6.324 MB / 318.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004317/0.4372, allocations: 2.057 MB / 414.4 MB, free: 5.441 MB / 318.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001752/0.4375, allocations: 37.75 kB / 414.4 MB, free: 5.434 MB / 318.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.01649/0.4539, allocations: 7.351 MB / 421.7 MB, free: 3.125 MB / 318.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0003195/0.4543, allocations: 147.5 kB / 421.9 MB, free: 3.016 MB / 318.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0007443/0.4551, allocations: 395.6 kB / 422.3 MB, free: 2.625 MB / 318.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01395/0.469, allocations: 4.858 MB / 427.1 MB, free: 13.99 MB / 334.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.869e-06/0.4691, allocations: 0 / 427.1 MB, free: 13.99 MB / 334.1 MB Notification: Performance of FrontEnd: time 2.064e-06/0.4691, allocations: 0 / 427.1 MB, free: 13.99 MB / 334.1 MB Notification: Performance of Transformations before backend: time 1.03e-05/0.4691, allocations: 0 / 427.1 MB, free: 13.99 MB / 334.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 152 * Number of variables: 152 Notification: Performance of Generate backend data structure: time 0.004163/0.4733, allocations: 1.508 MB / 428.6 MB, free: 12.43 MB / 334.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.753e-05/0.4733, allocations: 12.03 kB / 428.7 MB, free: 12.41 MB / 334.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001915/0.4753, allocations: 279.8 kB / 428.9 MB, free: 12.14 MB / 334.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.000686/0.476, allocations: 0.4938 MB / 429.4 MB, free: 11.62 MB / 334.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.335e-05/0.476, allocations: 45.69 kB / 429.5 MB, free: 11.57 MB / 334.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 8.914e-05/0.4761, allocations: 56.56 kB / 429.5 MB, free: 11.52 MB / 334.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001987/0.4781, allocations: 0.9288 MB / 430.4 MB, free: 10.54 MB / 334.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.301e-05/0.4781, allocations: 7.938 kB / 430.5 MB, free: 10.53 MB / 334.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.59e-05/0.4782, allocations: 32 kB / 430.5 MB, free: 10.5 MB / 334.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.921e-05/0.4783, allocations: 16.5 kB / 430.5 MB, free: 10.48 MB / 334.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001768/0.48, allocations: 0.7388 MB / 431.2 MB, free: 9.742 MB / 334.1 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 0.004543/0.4846, allocations: 4.149 MB / 435.4 MB, free: 5.277 MB / 334.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001723/0.4863, allocations: 0.6564 MB / 436 MB, free: 4.594 MB / 334.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.000497/0.4868, allocations: 303.3 kB / 436.3 MB, free: 4.289 MB / 334.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.1155/0.6024, allocations: 55.61 MB / 492 MB, free: 6.57 MB / 398.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001785/0.6042, allocations: 0.5788 MB / 492.5 MB, free: 5.953 MB / 398.1 MB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0004572/0.6047, allocations: 74.62 kB / 492.6 MB, free: 5.883 MB / 398.1 MB Notification: Performance of pre-optimization done (n=57): time 3.356e-06/0.6047, allocations: 0 / 492.6 MB, free: 5.883 MB / 398.1 MB Notification: Performance of matching and sorting (n=65): time 0.01053/0.6152, allocations: 3.334 MB / 495.9 MB, free: 2.457 MB / 398.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001402/0.6154, allocations: 273.5 kB / 496.2 MB, free: 2.129 MB / 398.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005505/0.6159, allocations: 482.7 kB / 496.7 MB, free: 1.648 MB / 398.1 MB Notification: Performance of collectPreVariables (initialization): time 6.26e-05/0.616, allocations: 37.7 kB / 496.7 MB, free: 1.605 MB / 398.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002373/0.6163, allocations: 320.3 kB / 497 MB, free: 1.289 MB / 398.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001878/0.6164, allocations: 220.6 kB / 497.2 MB, free: 1.078 MB / 398.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001265/0.6166, allocations: 69.75 kB / 497.3 MB, free: 1.004 MB / 398.1 MB Notification: Performance of setup shared object (initialization): time 0.0001519/0.6167, allocations: 370.8 kB / 497.7 MB, free: 0.6328 MB / 398.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005336/0.6173, allocations: 285.5 kB / 497.9 MB, free: 364 kB / 398.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006715/0.618, allocations: 475.4 kB / 498.4 MB, free: 15.82 MB / 414.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001239/0.6192, allocations: 0.8539 MB / 499.3 MB, free: 14.88 MB / 414.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.635e-06/0.6192, allocations: 0 / 499.3 MB, free: 14.88 MB / 414.1 MB Notification: Performance of matching and sorting (n=87) (initialization): time 0.001876/0.6211, allocations: 1.045 MB / 0.4886 GB, free: 13.81 MB / 414.1 MB Notification: Performance of prepare postOptimizeDAE: time 0.0001934/0.6213, allocations: 279.5 kB / 0.4889 GB, free: 13.46 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.207e-05/0.6213, allocations: 8 kB / 0.4889 GB, free: 13.46 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.002904/0.6243, allocations: 352.3 kB / 0.4892 GB, free: 13.11 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005288/0.6248, allocations: 135.8 kB / 0.4893 GB, free: 12.98 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001209/0.626, allocations: 0.7982 MB / 0.4901 GB, free: 12.15 MB / 414.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007356/0.6268, allocations: 75.86 kB / 0.4902 GB, free: 12.08 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.863e-05/0.6269, allocations: 44.05 kB / 0.4902 GB, free: 12.04 MB / 414.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.161e-05/0.6269, allocations: 4 kB / 0.4902 GB, free: 12.03 MB / 414.1 MB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001893/0.6288, allocations: 0.9858 MB / 0.4912 GB, free: 11.03 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.015e-06/0.6288, allocations: 8.062 kB / 0.4912 GB, free: 11.02 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.002814/0.6316, allocations: 352 kB / 0.4915 GB, free: 10.68 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004851/0.6321, allocations: 127.8 kB / 0.4917 GB, free: 10.55 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001177/0.6333, allocations: 0.8021 MB / 0.4924 GB, free: 9.723 MB / 414.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007047/0.634, allocations: 63.92 kB / 0.4925 GB, free: 9.66 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.697e-05/0.6341, allocations: 47.97 kB / 0.4925 GB, free: 9.613 MB / 414.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 20 * Number of states: 0 () * Number of discrete variables: 19 (Y_Valve_Tab.nextEventScaled,Y_Valve_Tab.nextEvent,$PRE.Y_Valve_Tab.nextEvent,Y_Valve_Tab.last,Y_Valve_Tab.b,Y_Valve_Tab.a,q_F_Tab.nextEventScaled,q_F_Tab.nextEvent,$PRE.q_F_Tab.nextEvent,q_F_Tab.last,q_F_Tab.b,q_F_Tab.a,pump.medium.phase,$whenCondition2,$whenCondition1,SteamValve.state_b.phase,SteamValve.state_a.phase,sink.state.phase,sink.medium.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (70): * Single equations (assignments): 67 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,6)} Notification: Performance of prepare postOptimizeDAE: time 0.000591/0.6347, allocations: 360.3 kB / 0.4929 GB, free: 9.238 MB / 414.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001772/0.6349, allocations: 67.25 kB / 0.4929 GB, free: 9.172 MB / 414.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006115/0.641, allocations: 4.77 MB / 0.4976 GB, free: 4.391 MB / 414.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.337e-05/0.6411, allocations: 31.95 kB / 0.4976 GB, free: 4.359 MB / 414.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.025e-05/0.6411, allocations: 64 / 0.4976 GB, free: 4.359 MB / 414.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.304e-05/0.6411, allocations: 15.92 kB / 0.4977 GB, free: 4.344 MB / 414.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.008315/0.6494, allocations: 6.553 MB / 0.5041 GB, free: 13.65 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.449e-05/0.6495, allocations: 0 / 0.5041 GB, free: 13.65 MB / 430.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004478/0.65, allocations: 107.8 kB / 0.5042 GB, free: 13.55 MB / 430.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002381/0.6524, allocations: 1.082 MB / 0.5052 GB, free: 12.46 MB / 430.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001514/0.6525, allocations: 27.98 kB / 0.5052 GB, free: 12.44 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002361/0.6549, allocations: 2.352 MB / 0.5075 GB, free: 10.06 MB / 430.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.644e-06/0.6549, allocations: 0 / 0.5075 GB, free: 10.06 MB / 430.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007365/0.6623, allocations: 5.507 MB / 0.5129 GB, free: 4.52 MB / 430.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0006687/0.663, allocations: 239.2 kB / 0.5131 GB, free: 4.266 MB / 430.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001763/0.6632, allocations: 27.98 kB / 0.5132 GB, free: 4.238 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006412/0.6638, allocations: 63.94 kB / 0.5132 GB, free: 4.176 MB / 430.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001776/0.664, allocations: 44.48 kB / 0.5133 GB, free: 4.129 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.214e-05/0.6641, allocations: 31.98 kB / 0.5133 GB, free: 4.098 MB / 430.1 MB Notification: Performance of sorting global known variables: time 0.0006345/0.6647, allocations: 491 kB / 0.5138 GB, free: 3.613 MB / 430.1 MB Notification: Performance of sort global known variables: time 1.2e-07/0.6647, allocations: 0 / 0.5138 GB, free: 3.613 MB / 430.1 MB Notification: Performance of remove unused functions: time 0.004404/0.6692, allocations: 1.289 MB / 0.515 GB, free: 2.324 MB / 430.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 3 (evaporator.p,evaporator.V_l,controller.x) * Number of discrete variables: 27 ($cse2.phase,$cse2.region,$cse5.region3boundary,$cse6.region3boundary,$cse7.phase,$cse7.region,$cse8.phase,$cse8.region,$cse9.phase,$cse9.region,$cse11.phase,$cse11.region,$cse12.phase,$cse12.region,$whenCondition1,$whenCondition2,pump.medium.phase,q_F_Tab.a,q_F_Tab.b,q_F_Tab.last,q_F_Tab.nextEvent,q_F_Tab.nextEventScaled,Y_Valve_Tab.a,Y_Valve_Tab.b,Y_Valve_Tab.last,Y_Valve_Tab.nextEvent,Y_Valve_Tab.nextEventScaled) * Number of discrete states: 12 (Y_Valve_Tab.nextEvent,Y_Valve_Tab.last,Y_Valve_Tab.nextEventScaled,Y_Valve_Tab.b,Y_Valve_Tab.a,$whenCondition2,q_F_Tab.nextEvent,q_F_Tab.last,q_F_Tab.nextEventScaled,q_F_Tab.b,q_F_Tab.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (59): * Single equations (assignments): 48 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 8 * When equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.004849/0.674, allocations: 1.27 MB / 0.5163 GB, free: 1.152 MB / 430.1 MB Notification: Performance of simCode: created initialization part: time 0.003394/0.6774, allocations: 1.844 MB / 0.5181 GB, free: 15.27 MB / 446.1 MB Notification: Performance of simCode: created event and clocks part: time 1.003e-05/0.6775, allocations: 11.94 kB / 0.5181 GB, free: 15.26 MB / 446.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001352/0.6788, allocations: 0.9015 MB / 0.519 GB, free: 14.33 MB / 446.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001978/0.6808, allocations: 322.7 kB / 0.5193 GB, free: 14.01 MB / 446.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00369/0.6845, allocations: 2.78 MB / 0.522 GB, free: 11.2 MB / 446.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006107/0.6851, allocations: 1.067 MB / 0.523 GB, free: 10.11 MB / 446.1 MB Notification: Performance of simCode: alias equations: time 0.00103/0.6862, allocations: 0.6016 MB / 0.5236 GB, free: 9.504 MB / 446.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000149/0.6863, allocations: 63.42 kB / 0.5237 GB, free: 9.441 MB / 446.1 MB Notification: Performance of SimCode: time 6.71e-07/0.6863, allocations: 0 / 0.5237 GB, free: 9.441 MB / 446.1 MB Notification: Performance of Templates: time 0.2619/0.9483, allocations: 50.47 MB / 0.573 GB, free: 147.1 MB / 446.1 MB make -j1 -f Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler.makefile (rm -f Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler.pipe ; mkfifo Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler.pipe ; head -c 1048576 < Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler.pipe >> ../files/Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler.sim & ./Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler -abortSlowSimulation -alarm=480 -lv LOG_STATS > Modelica_3.2.2_Modelica.Fluid.Examples.DrumBoiler.DrumBoiler.pipe 2>&1)