Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow.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.Fluid.Examples.Performance.PressureDrop.SeriesFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow") translateModel(IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001338/0.001338, allocations: 102.2 kB / 16.27 MB, free: 6 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001248/0.001248, allocations: 191 kB / 17.2 MB, free: 5.609 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.307/1.307, allocations: 222.9 MB / 240.9 MB, free: 15.28 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.8075/0.8075, allocations: 135.2 MB / 426.2 MB, free: 4.16 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001854/0.001854, allocations: 63.89 kB / 0.506 GB, free: 8.363 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3593/0.3612, allocations: 80.92 MB / 0.5851 GB, free: 25.38 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow): time 0.1784/0.5396, allocations: 161.6 MB / 0.7429 GB, free: 8.422 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.00329/0.543, allocations: 1.757 MB / 0.7446 GB, free: 6.66 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000292/0.5433, allocations: 15.88 kB / 0.7446 GB, free: 6.645 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.0005543/0.5438, allocations: 162.9 kB / 0.7448 GB, free: 6.484 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.001302/0.5452, allocations: 0.5172 MB / 0.7453 GB, free: 5.965 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.00104/0.5463, allocations: 393.8 kB / 0.7456 GB, free: 5.582 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.002696/0.549, allocations: 2.514 MB / 0.7481 GB, free: 3.062 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001219/0.5502, allocations: 0.9294 MB / 0.749 GB, free: 2.121 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001794/0.552, allocations: 1.024 MB / 0.75 GB, free: 1.094 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008842/0.5529, allocations: 0.7079 MB / 0.7507 GB, free: 392 kB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0001126/0.553, allocations: 52 kB / 0.7507 GB, free: 340 kB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.3171/0.8702, allocations: 0.7346 MB / 0.7515 GB, free: 4.012 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0006166/0.8708, allocations: 308.2 kB / 0.7518 GB, free: 4.012 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.0009687/0.8718, allocations: 0.5387 MB / 0.7523 GB, free: 4.012 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.00165/0.8735, allocations: 1.387 MB / 0.7536 GB, free: 3.961 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 5.189e-06/0.8735, allocations: 6.5 kB / 0.7536 GB, free: 3.961 MB / 0.5762 GB Notification: Performance of FrontEnd: time 2.204e-06/0.8735, allocations: 0 / 0.7536 GB, free: 3.961 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 1.302e-05/0.8735, allocations: 1.203 kB / 0.7536 GB, free: 3.961 MB / 0.5762 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 126 * Number of variables: 126 Notification: Performance of Generate backend data structure: time 0.001792/0.8753, allocations: 1.449 MB / 0.7551 GB, free: 3.117 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 3.2e-05/0.8753, allocations: 10.08 kB / 0.7551 GB, free: 3.117 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006643/0.876, allocations: 193.5 kB / 0.7553 GB, free: 3.059 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009212/0.8769, allocations: 0.7934 MB / 0.756 GB, free: 2.699 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.297e-05/0.877, allocations: 45.72 kB / 0.7561 GB, free: 2.699 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.918e-05/0.8771, allocations: 63.53 kB / 0.7561 GB, free: 2.699 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009043/0.878, allocations: 0.7963 MB / 0.7569 GB, free: 2.484 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.539e-05/0.878, allocations: 0.8125 kB / 0.7569 GB, free: 2.484 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.486e-05/0.878, allocations: 28.03 kB / 0.7569 GB, free: 2.48 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.133e-05/0.8781, allocations: 14.12 kB / 0.757 GB, free: 2.48 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007802/0.8788, allocations: 0.5364 MB / 0.7575 GB, free: 2.48 MB / 0.5762 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 0.004378/0.8832, allocations: 4.607 MB / 0.762 GB, free: 15.05 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007902/0.884, allocations: 422.3 kB / 0.7624 GB, free: 15.02 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003984/0.8845, allocations: 243.5 kB / 0.7626 GB, free: 15.02 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003255/0.8848, allocations: 193.6 kB / 0.7628 GB, free: 14.83 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005011/0.8853, allocations: 292.3 kB / 0.7631 GB, free: 14.77 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=31): time 1.893e-06/0.8853, allocations: 0 / 0.7631 GB, free: 14.77 MB / 0.5919 GB Notification: Performance of matching and sorting (n=31): time 0.001391/0.8867, allocations: 0.6311 MB / 0.7637 GB, free: 14.68 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.102e-05/0.8868, allocations: 90.34 kB / 0.7638 GB, free: 14.58 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001574/0.8884, allocations: 1.12 MB / 0.7649 GB, free: 14.43 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 5.357e-05/0.8884, allocations: 34.95 kB / 0.7649 GB, free: 14.39 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003072/0.8887, allocations: 491.4 kB / 0.7654 GB, free: 14.23 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 6.831e-05/0.8888, allocations: 109.3 kB / 0.7655 GB, free: 14.16 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001367/0.889, allocations: 111.4 kB / 0.7656 GB, free: 14.14 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0001362/0.8891, allocations: 325.2 kB / 0.7659 GB, free: 13.83 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003562/0.8895, allocations: 214.2 kB / 0.7661 GB, free: 13.82 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004675/0.8899, allocations: 0.518 MB / 0.7666 GB, free: 13.47 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000901/0.8909, allocations: 0.6387 MB / 0.7672 GB, free: 13.25 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.548e-06/0.8909, allocations: 5.172 kB / 0.7672 GB, free: 13.25 MB / 0.5919 GB Notification: Performance of matching and sorting (n=54) (initialization): time 0.001008/0.8919, allocations: 0.7195 MB / 0.7679 GB, free: 13.13 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 3.837e-05/0.8919, allocations: 34.61 kB / 0.768 GB, free: 13.1 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.277e-06/0.8919, allocations: 7.25 kB / 0.768 GB, free: 13.1 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.07e-05/0.892, allocations: 15.42 kB / 0.768 GB, free: 13.1 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00163/0.8936, allocations: 354.5 kB / 0.7683 GB, free: 13.09 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003695/0.8973, allocations: 6.079 MB / 0.7743 GB, free: 7.242 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000772/0.8981, allocations: 79.12 kB / 0.7743 GB, free: 7.215 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.824e-05/0.8982, allocations: 23.5 kB / 0.7744 GB, free: 7.215 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0008144/0.899, allocations: 0.4974 MB / 0.7748 GB, free: 7.133 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0005062/0.8995, allocations: 493.7 kB / 0.7753 GB, free: 6.785 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007604/0.9003, allocations: 0.5497 MB / 0.7759 GB, free: 6.566 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.506e-06/0.9003, allocations: 6.625 kB / 0.7759 GB, free: 6.566 MB / 0.5919 GB Notification: Performance of matching and sorting (n=54) (initialization_lambda0): time 0.0009721/0.9013, allocations: 0.6509 MB / 0.7765 GB, free: 6.445 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 3.464e-05/0.9013, allocations: 32.64 kB / 0.7765 GB, free: 6.414 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.174e-06/0.9013, allocations: 10.5 kB / 0.7765 GB, free: 6.414 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 7.724e-06/0.9013, allocations: 6.844 kB / 0.7765 GB, free: 6.414 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000473/0.9018, allocations: 150.8 kB / 0.7767 GB, free: 6.414 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.001e-05/0.9018, allocations: 15.31 kB / 0.7767 GB, free: 6.414 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006118/0.9025, allocations: 67.86 kB / 0.7768 GB, free: 6.395 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.268e-05/0.9025, allocations: 23.62 kB / 0.7768 GB, free: 6.395 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (53): * Single equations (assignments): 42 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002342/0.9027, allocations: 223.9 kB / 0.777 GB, free: 6.211 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001282/0.9029, allocations: 99.75 kB / 0.7771 GB, free: 6.16 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008121/0.9037, allocations: 492.2 kB / 0.7776 GB, free: 6.105 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.541e-06/0.9037, allocations: 3.219 kB / 0.7776 GB, free: 6.105 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.207e-06/0.9037, allocations: 3.938 kB / 0.7776 GB, free: 6.102 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.551e-06/0.9037, allocations: 3.656 kB / 0.7776 GB, free: 6.102 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001769/0.9055, allocations: 1.381 MB / 0.7789 GB, free: 5.66 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.577e-06/0.9055, allocations: 3.312 kB / 0.7789 GB, free: 5.66 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005424/0.9061, allocations: 149.7 kB / 0.7791 GB, free: 5.648 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.969e-06/0.9061, allocations: 3.406 kB / 0.7791 GB, free: 5.648 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.221e-05/0.9061, allocations: 8.844 kB / 0.7791 GB, free: 5.648 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003289/0.9094, allocations: 6.032 MB / 0.785 GB, free: 15.8 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.927e-06/0.9094, allocations: 2.562 kB / 0.785 GB, free: 15.8 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001039/0.9105, allocations: 0.6 MB / 0.7856 GB, free: 15.55 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000308/0.9108, allocations: 216.8 kB / 0.7858 GB, free: 15.4 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001037/0.9109, allocations: 8.406 kB / 0.7858 GB, free: 15.4 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003687/0.9113, allocations: 24.36 kB / 0.7858 GB, free: 15.4 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.062e-05/0.9114, allocations: 25.69 kB / 0.7858 GB, free: 15.4 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.118e-05/0.9114, allocations: 17.03 kB / 0.7858 GB, free: 15.4 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.000858/0.9123, allocations: 0.7905 MB / 0.7866 GB, free: 15.29 MB / 0.6075 GB Notification: Performance of sort global known variables: time 1.31e-07/0.9123, allocations: 4.125 kB / 0.7866 GB, free: 15.29 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.00112/0.9134, allocations: 405.9 kB / 0.787 GB, free: 15.26 MB / 0.6075 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (31): * Single equations (assignments): 19 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0004371/0.9138, allocations: 173.6 kB / 0.7872 GB, free: 15.17 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.002815/0.9167, allocations: 1.14 MB / 0.7883 GB, free: 15.02 MB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 3.326e-06/0.9167, allocations: 0.9062 kB / 0.7883 GB, free: 15.02 MB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.0006628/0.9174, allocations: 285.6 kB / 0.7886 GB, free: 15.01 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001823/0.9192, allocations: 450.7 kB / 0.789 GB, free: 14.97 MB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002618/0.9218, allocations: 1.858 MB / 0.7908 GB, free: 14.27 MB / 0.6075 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006942/0.9225, allocations: 1.184 MB / 0.792 GB, free: 13.57 MB / 0.6075 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001501/0.9227, allocations: 69.3 kB / 0.792 GB, free: 13.56 MB / 0.6075 GB Notification: Performance of SimCode: time 4.91e-07/0.9227, allocations: 0.75 kB / 0.792 GB, free: 13.56 MB / 0.6075 GB Notification: Performance of Templates: time 0.06479/0.9875, allocations: 64.26 MB / 0.8548 GB, free: 0.5117 MB / 0.6387 GB make -j1 -f IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow.makefile (rm -f IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow.sim & ./IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.SeriesFlow.pipe 2>&1)