Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9.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.VDI6007.TestCase9,tolerance=1e-06,outputFormat="empty",numberOfIntervals=172800,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9") translateModel(IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9,tolerance=1e-06,outputFormat="empty",numberOfIntervals=172800,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001169/0.001169, allocations: 110.7 kB / 16.41 MB, free: 6.488 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001222/0.001222, 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 1.468/1.468, allocations: 222.9 MB / 241 MB, free: 15.16 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.7912/0.7912, allocations: 135.1 MB / 426.3 MB, free: 4.152 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001224/0.001224, allocations: 67.14 kB / 0.5863 GB, free: 21.66 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1441/0.1453, allocations: 80.92 MB / 0.6653 GB, free: 5.816 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9): time 0.4936/0.639, allocations: 158 MB / 0.8196 GB, free: 7.652 MB / 0.5919 GB Notification: Performance of NFInst.instExpressions: time 0.02714/0.6661, allocations: 22.32 MB / 0.8414 GB, free: 5.383 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00252/0.6687, allocations: 63.75 kB / 0.8414 GB, free: 5.359 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.003203/0.672, allocations: 3.211 MB / 0.8446 GB, free: 3.801 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.003775/0.6757, allocations: 2.013 MB / 0.8465 GB, free: 2.684 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.002139/0.6779, allocations: 0.7695 MB / 0.8473 GB, free: 2.094 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.003263/0.6812, allocations: 2.495 MB / 0.8497 GB, free: 0.75 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002432/0.6836, allocations: 1.45 MB / 0.8511 GB, free: 15.86 MB / 0.6231 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002162/0.6858, allocations: 1.252 MB / 0.8524 GB, free: 15.21 MB / 0.6231 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003053/0.6889, allocations: 2.261 MB / 0.8546 GB, free: 13.34 MB / 0.6231 GB Notification: Performance of NFPackage.collectConstants: time 0.0003945/0.6893, allocations: 120 kB / 0.8547 GB, free: 13.22 MB / 0.6231 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0007034/0.69, allocations: 164 kB / 0.8548 GB, free: 13.06 MB / 0.6231 GB Notification: Performance of NFScalarize.scalarize: time 0.000876/0.6909, allocations: 0.7894 MB / 0.8556 GB, free: 12.26 MB / 0.6231 GB Notification: Performance of NFVerifyModel.verify: time 0.001463/0.6923, allocations: 1.101 MB / 0.8567 GB, free: 11.15 MB / 0.6231 GB Notification: Performance of NFConvertDAE.convert: time 0.002707/0.6951, allocations: 2.623 MB / 0.8593 GB, free: 8.523 MB / 0.6231 GB Notification: Performance of FrontEnd - DAE generated: time 4.839e-06/0.6951, allocations: 0 / 0.8593 GB, free: 8.523 MB / 0.6231 GB Notification: Performance of FrontEnd: time 1.363e-06/0.6951, allocations: 0 / 0.8593 GB, free: 8.523 MB / 0.6231 GB Notification: Performance of Transformations before backend: time 3.007e-05/0.6951, allocations: 0 / 0.8593 GB, free: 8.523 MB / 0.6231 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 214 * Number of variables: 214 Notification: Performance of Generate backend data structure: time 0.004498/0.6996, allocations: 3.242 MB / 0.8624 GB, free: 5.211 MB / 0.6231 GB Notification: Performance of prepare preOptimizeDAE: time 3.913e-05/0.6997, allocations: 13.05 kB / 0.8624 GB, free: 5.199 MB / 0.6231 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003906/0.7001, allocations: 340.8 kB / 0.8628 GB, free: 4.863 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001653/0.7017, allocations: 1.412 MB / 0.8641 GB, free: 3.398 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001589/0.7019, allocations: 103.7 kB / 0.8642 GB, free: 3.289 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001534/0.7021, allocations: 95.89 kB / 0.8643 GB, free: 3.195 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001766/0.7038, allocations: 1.008 MB / 0.8653 GB, free: 2.176 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.399e-05/0.7039, allocations: 0 / 0.8653 GB, free: 2.176 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.317e-05/0.704, allocations: 35.98 kB / 0.8653 GB, free: 2.141 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.809e-05/0.704, allocations: 20 kB / 0.8654 GB, free: 2.121 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001603/0.7056, allocations: 0.8587 MB / 0.8662 GB, free: 1.258 MB / 0.6231 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.006587/0.7122, allocations: 4.539 MB / 0.8706 GB, free: 12.45 MB / 0.6387 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002062/0.7143, allocations: 0.9957 MB / 0.8716 GB, free: 11.45 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001033/0.7153, allocations: 0.5556 MB / 0.8722 GB, free: 10.89 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 6.499e-05/0.7154, allocations: 20.98 kB / 0.8722 GB, free: 10.88 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001155/0.7166, allocations: 0.5945 MB / 0.8728 GB, free: 10.27 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=101): time 3.817e-06/0.7166, allocations: 0 / 0.8728 GB, free: 10.27 MB / 0.6387 GB Notification: Performance of matching and sorting (n=101): time 0.005292/0.7219, allocations: 2.323 MB / 0.875 GB, free: 7.891 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.581e-05/0.722, allocations: 60.41 kB / 0.8751 GB, free: 7.82 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005967/0.728, allocations: 5.1 MB / 0.8801 GB, free: 2.73 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 9.445e-05/0.7281, allocations: 49.7 kB / 0.8801 GB, free: 2.676 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.001201/0.7293, allocations: 1.373 MB / 0.8814 GB, free: 1.297 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003231/0.7296, allocations: 323.5 kB / 0.8818 GB, free: 0.9766 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002946/0.7299, allocations: 179 kB / 0.8819 GB, free: 0.7969 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001662/0.7301, allocations: 349.9 kB / 0.8823 GB, free: 460 kB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009014/0.731, allocations: 426.3 kB / 0.8827 GB, free: 32 kB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001025/0.732, allocations: 0.595 MB / 0.8832 GB, free: 15.38 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00179/0.7338, allocations: 0.9982 MB / 0.8842 GB, free: 14.34 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.476e-06/0.7339, allocations: 4 kB / 0.8842 GB, free: 14.33 MB / 0.6544 GB Notification: Performance of matching and sorting (n=130) (initialization): time 0.003087/0.7369, allocations: 1.615 MB / 0.8858 GB, free: 12.7 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 2.245e-05/0.737, allocations: 8 kB / 0.8858 GB, free: 12.69 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.221e-05/0.737, allocations: 4 kB / 0.8858 GB, free: 12.69 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007538/0.7378, allocations: 268 kB / 0.8861 GB, free: 12.42 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000755/0.7385, allocations: 183.7 kB / 0.8862 GB, free: 12.24 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00523/0.7438, allocations: 4.745 MB / 0.8909 GB, free: 7.223 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000936/0.7447, allocations: 135.1 kB / 0.891 GB, free: 7.09 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.828e-05/0.7448, allocations: 36 kB / 0.891 GB, free: 7.055 MB / 0.6544 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * Number of states: 0 () * Number of discrete variables: 41 (assEqu.nFai,$PRE.assEqu.nFai,$whenCondition9,$PRE.intGai.nextTimeEvent,$whenCondition8,$PRE.reference.nextTimeEvent,$whenCondition7,$PRE.outdoorTemp.nextTimeEvent,$whenCondition6,$PRE.tableSolRadWindow.nextTimeEvent,$whenCondition5,$PRE.tableSolRadWall.nextTimeEvent,$whenCondition4,$PRE.HSky.nextTimeEvent,$whenCondition3,$whenCondition1,mean.y_last,$PRE.mean.y_last,assEqu.satisfied,$PRE.assEqu.satisfied,reference.nextTimeEventScaled,$PRE.reference.nextTimeEventScaled,reference.nextTimeEvent,$whenCondition2,HSky.nextTimeEventScaled,$PRE.HSky.nextTimeEventScaled,HSky.nextTimeEvent,tableSolRadWall.nextTimeEventScaled,$PRE.tableSolRadWall.nextTimeEventScaled,tableSolRadWall.nextTimeEvent,greaterThreshold2.y,greaterThreshold1.y,tableSolRadWindow.nextTimeEventScaled,$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 (108): * Single equations (assignments): 106 * 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 {(1,3,100.0%), (2,18,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.001218/0.746, allocations: 0.8657 MB / 0.8919 GB, free: 6.18 MB / 0.6544 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000412/0.7465, allocations: 315.9 kB / 0.8922 GB, free: 5.867 MB / 0.6544 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006626/0.7471, allocations: 384 kB / 0.8926 GB, free: 5.488 MB / 0.6544 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.672e-05/0.7472, allocations: 12 kB / 0.8926 GB, free: 5.477 MB / 0.6544 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.101e-05/0.7472, allocations: 4 kB / 0.8926 GB, free: 5.473 MB / 0.6544 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.089e-05/0.7472, allocations: 7.922 kB / 0.8926 GB, free: 5.465 MB / 0.6544 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005406/0.7526, allocations: 3.224 MB / 0.8957 GB, free: 2.188 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.779e-06/0.7526, allocations: 4 kB / 0.8957 GB, free: 2.184 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005048/0.7531, allocations: 111.8 kB / 0.8958 GB, free: 2.074 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006543/0.7538, allocations: 257.4 kB / 0.8961 GB, free: 1.816 MB / 0.6544 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.397e-05/0.7539, allocations: 27.98 kB / 0.8961 GB, free: 1.789 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00516/0.7591, allocations: 4.735 MB / 0.9007 GB, free: 12.77 MB / 0.67 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.733e-06/0.7591, allocations: 0 / 0.9007 GB, free: 12.77 MB / 0.67 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003843/0.7629, allocations: 2.186 MB / 0.9029 GB, free: 10.56 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006748/0.7636, allocations: 432.8 kB / 0.9033 GB, free: 10.11 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00028/0.7639, allocations: 28 kB / 0.9033 GB, free: 10.09 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006947/0.7646, allocations: 59.81 kB / 0.9034 GB, free: 10.03 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002307/0.7649, allocations: 100.8 kB / 0.9035 GB, free: 9.93 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.258e-05/0.7649, allocations: 35.98 kB / 0.9035 GB, free: 9.895 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.004488/0.7694, allocations: 3.726 MB / 0.9071 GB, free: 6.184 MB / 0.67 GB Notification: Performance of sort global known variables: time 2.71e-07/0.7695, allocations: 8 kB / 0.9071 GB, free: 6.176 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.00127/0.7707, allocations: 383.3 kB / 0.9075 GB, free: 5.801 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[1].T,assEqu.diff,mean.x) * Number of discrete variables: 26 ($whenCondition9,$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,greaterThreshold2.y,tableSolRadWall.nextTimeEvent,tableSolRadWall.nextTimeEventScaled,HSky.nextTimeEvent,HSky.nextTimeEventScaled,assEqu.satisfied,assEqu.nFai,mean.y_last) * Number of discrete states: 15 (intGai.nextTimeEvent,reference.nextTimeEvent,outdoorTemp.nextTimeEvent,tableSolRadWindow.nextTimeEvent,tableSolRadWall.nextTimeEvent,HSky.nextTimeEvent,mean.x,assEqu.satisfied,assEqu.nFai,HSky.nextTimeEventScaled,tableSolRadWall.nextTimeEventScaled,tableSolRadWindow.nextTimeEventScaled,outdoorTemp.nextTimeEventScaled,reference.nextTimeEventScaled,intGai.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (79): * Single equations (assignments): 63 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 14 * 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 {(2,18,100.0%), (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 0.001238/0.772, allocations: 0.4893 MB / 0.908 GB, free: 5.492 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.002726/0.7747, allocations: 1.363 MB / 0.9093 GB, free: 4.102 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 4.999e-06/0.7747, allocations: 448 / 0.9093 GB, free: 4.102 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.001401/0.7761, allocations: 0.8531 MB / 0.9101 GB, free: 3.227 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001978/0.7781, allocations: 389.8 kB / 0.9105 GB, free: 2.859 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00929/0.7874, allocations: 6.037 MB / 0.9164 GB, free: 12.79 MB / 0.6856 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00194/0.7894, allocations: 1.931 MB / 0.9183 GB, free: 10.83 MB / 0.6856 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003508/0.7898, allocations: 99.41 kB / 0.9184 GB, free: 10.73 MB / 0.6856 GB Notification: Performance of SimCode: time 6.31e-07/0.7898, allocations: 0 / 0.9184 GB, free: 10.73 MB / 0.6856 GB Notification: Performance of Templates: time 0.0643/0.8541, allocations: 45.61 MB / 0.9629 GB, free: 13.13 MB / 0.7325 GB make -j1 -f IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9.makefile (rm -f IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9.pipe ; mkfifo IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9.pipe >> ../files/IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9.sim & ./IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9 -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase9.pipe 2>&1)