Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.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/NcDataReader2 2.5.1-master/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false)
Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo)
Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-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(BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6,tolerance=1e-06,outputFormat="empty",numberOfIntervals=172800,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6")
translateModel(BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6,tolerance=1e-06,outputFormat="empty",numberOfIntervals=172800,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008189/0.0008189, allocations: 91.61 kB / 15.06 MB, free: 1.098 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0007786/0.0007787, allocations: 172.7 kB / 15.95 MB, free: 208 kB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.259/1.259, allocations: 223.3 MB / 240 MB, free: 5.422 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.001628/0.001628, allocations: 271 kB / 291.3 MB, free: 1.977 MB / 238.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.9641/0.9641, allocations: 169.5 MB / 0.5 GB, free: 14.21 MB / 382.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.0003925/0.0003926, allocations: 10.84 kB / 0.598 GB, free: 28.36 MB / 430.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.156/0.1564, allocations: 88.55 MB / 0.6845 GB, free: 15.47 MB / 494.1 MB
Notification: Performance of NFInst.instantiate(BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6): time 0.4647/0.6211, allocations: 142.4 MB / 0.8235 GB, free: 14.36 MB / 0.5606 GB
Notification: Performance of NFInst.instExpressions: time 0.02422/0.6454, allocations: 20.37 MB / 0.8434 GB, free: 3.047 MB / 0.5606 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.002559/0.648, allocations: 51.22 kB / 0.8435 GB, free: 3.027 MB / 0.5606 GB
Notification: Performance of NFTyping.typeComponents: time 0.001874/0.6499, allocations: 1.292 MB / 0.8447 GB, free: 2.383 MB / 0.5606 GB
Notification: Performance of NFTyping.typeBindings: time 0.00192/0.6519, allocations: 0.9086 MB / 0.8456 GB, free: 1.844 MB / 0.5606 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001495/0.6534, allocations: 400 kB / 0.846 GB, free: 1.562 MB / 0.5606 GB
Notification: Performance of NFFlatten.flatten: time 0.00164/0.655, allocations: 1.33 MB / 0.8473 GB, free: 0.7852 MB / 0.5606 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0007414/0.6558, allocations: 0.5958 MB / 0.8479 GB, free: 420 kB / 0.5606 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0006767/0.6565, allocations: 0.5436 MB / 0.8484 GB, free: 152 kB / 0.5606 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001089/0.6576, allocations: 0.9382 MB / 0.8493 GB, free: 15.7 MB / 0.5762 GB
Notification: Performance of NFPackage.collectConstants: time 8.468e-05/0.6577, allocations: 29.88 kB / 0.8494 GB, free: 15.7 MB / 0.5762 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.000288/0.6579, allocations: 73.95 kB / 0.8494 GB, free: 15.68 MB / 0.5762 GB
Notification: Performance of NFScalarize.scalarize: time 0.0002824/0.6582, allocations: 341.8 kB / 0.8498 GB, free: 15.49 MB / 0.5762 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002411/0.6585, allocations: 234.8 kB / 0.85 GB, free: 15.33 MB / 0.5762 GB
Notification: Performance of NFConvertDAE.convert: time 0.0008268/0.6593, allocations: 1.013 MB / 0.851 GB, free: 14.64 MB / 0.5762 GB
Notification: Performance of FrontEnd - DAE generated: time 8.366e-06/0.6593, allocations: 4 kB / 0.851 GB, free: 14.64 MB / 0.5762 GB
Notification: Performance of FrontEnd: time 2.044e-06/0.6593, allocations: 0 / 0.851 GB, free: 14.64 MB / 0.5762 GB
Notification: Performance of Transformations before backend: time 1.682e-05/0.6594, allocations: 0 / 0.851 GB, free: 14.64 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: 121
 * Number of variables: 121
Notification: Performance of Generate backend data structure: time 0.002058/0.6614, allocations: 1.506 MB / 0.8525 GB, free: 13.48 MB / 0.5762 GB
Notification: Performance of prepare preOptimizeDAE: time 4.133e-05/0.6615, allocations: 10.84 kB / 0.8525 GB, free: 13.48 MB / 0.5762 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000234/0.6617, allocations: 160.1 kB / 0.8526 GB, free: 13.39 MB / 0.5762 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008971/0.6626, allocations: 0.6819 MB / 0.8533 GB, free: 12.84 MB / 0.5762 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001227/0.6628, allocations: 83.97 kB / 0.8534 GB, free: 12.79 MB / 0.5762 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 8.165e-05/0.6629, allocations: 51.94 kB / 0.8534 GB, free: 12.78 MB / 0.5762 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001049/0.6639, allocations: 0.5802 MB / 0.854 GB, free: 12.42 MB / 0.5762 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.876e-05/0.6639, allocations: 0 / 0.854 GB, free: 12.42 MB / 0.5762 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.158e-05/0.664, allocations: 25.72 kB / 0.854 GB, free: 12.4 MB / 0.5762 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.27e-05/0.664, allocations: 14.75 kB / 0.854 GB, free: 12.4 MB / 0.5762 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000846/0.6649, allocations: 463.2 kB / 0.8545 GB, free: 12.18 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 0.003513/0.6684, allocations: 3.06 MB / 0.8574 GB, free: 9.57 MB / 0.5762 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.000965/0.6694, allocations: 0.5064 MB / 0.8579 GB, free: 9.316 MB / 0.5762 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0005205/0.6699, allocations: 321 kB / 0.8582 GB, free: 9.168 MB / 0.5762 GB
Notification: Performance of preOpt evalFunc (simulation): time 4.241e-05/0.67, allocations: 6.156 kB / 0.8583 GB, free: 9.168 MB / 0.5762 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005614/0.6705, allocations: 341.7 kB / 0.8586 GB, free: 8.957 MB / 0.5762 GB
Notification: Performance of pre-optimization done (n=52): time 3.828e-06/0.6705, allocations: 3.984 kB / 0.8586 GB, free: 8.953 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=52): time 0.002762/0.6733, allocations: 1.373 MB / 0.8599 GB, free: 8.156 MB / 0.5762 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.637e-05/0.6734, allocations: 68.73 kB / 0.86 GB, free: 8.082 MB / 0.5762 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001963/0.6753, allocations: 2.108 MB / 0.862 GB, free: 7.137 MB / 0.5762 GB
Notification: Performance of collectPreVariables (initialization): time 5.338e-05/0.6754, allocations: 40.62 kB / 0.8621 GB, free: 7.094 MB / 0.5762 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0004751/0.6759, allocations: 0.6292 MB / 0.8627 GB, free: 6.551 MB / 0.5762 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001319/0.676, allocations: 167.7 kB / 0.8629 GB, free: 6.406 MB / 0.5762 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 2.751e-05/0.676, allocations: 14.56 kB / 0.8629 GB, free: 6.395 MB / 0.5762 GB
Notification: Performance of setup shared object (initialization): time 0.0001109/0.6762, allocations: 327.8 kB / 0.8632 GB, free: 6.074 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004494/0.6766, allocations: 250.5 kB / 0.8634 GB, free: 5.965 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005198/0.6771, allocations: 365.6 kB / 0.8638 GB, free: 5.719 MB / 0.5762 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0004912/0.6776, allocations: 286.6 kB / 0.864 GB, free: 5.586 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.296e-06/0.6777, allocations: 0 / 0.864 GB, free: 5.586 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=75) (initialization): time 0.001546/0.6792, allocations: 0.9402 MB / 0.865 GB, free: 5.109 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 2.014e-05/0.6792, allocations: 8.031 kB / 0.865 GB, free: 5.109 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.257e-06/0.6793, allocations: 2.844 kB / 0.865 GB, free: 5.109 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0004946/0.6798, allocations: 195.4 kB / 0.8652 GB, free: 5.02 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003492/0.6801, allocations: 111.9 kB / 0.8653 GB, free: 4.996 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003052/0.6832, allocations: 2.798 MB / 0.868 GB, free: 2.723 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005029/0.6837, allocations: 99.06 kB / 0.8681 GB, free: 2.668 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.57e-05/0.6837, allocations: 20.72 kB / 0.8681 GB, free: 2.664 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 13
 * Number of states: 0 ()
 * Number of discrete variables: 24 ($PRE.assEqu.nFai,assEqu.nFai,$whenCondition6,$whenCondition5,$PRE.intGai.nextTimeEvent,$whenCondition4,$PRE.reference.nextTimeEvent,$whenCondition3,$PRE.setTemp.nextTimeEvent,$whenCondition1,$whenCondition2,reference.nextTimeEvent,$PRE.reference.nextTimeEventScaled,reference.nextTimeEventScaled,$PRE.assEqu.satisfied,assEqu.satisfied,$PRE.mean.y_last,mean.y_last,intGai.nextTimeEvent,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEventScaled,setTemp.nextTimeEvent,$PRE.setTemp.nextTimeEventScaled,setTemp.nextTimeEventScaled)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (57):
 * Single equations (assignments): 56
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 1 {(2,100.0%) 17}
 * Non-linear torn systems: 0
Notification: Performance of prepare postOptimizeDAE: time 0.0005741/0.6843, allocations: 447.5 kB / 0.8685 GB, free: 2.402 MB / 0.5762 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001336/0.6845, allocations: 133.7 kB / 0.8687 GB, free: 2.332 MB / 0.5762 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0002475/0.6847, allocations: 168.2 kB / 0.8688 GB, free: 2.219 MB / 0.5762 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.669e-06/0.6847, allocations: 7.938 kB / 0.8688 GB, free: 2.211 MB / 0.5762 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.753e-05/0.6848, allocations: 4 kB / 0.8688 GB, free: 2.207 MB / 0.5762 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.315e-06/0.6848, allocations: 3.984 kB / 0.8688 GB, free: 2.203 MB / 0.5762 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002499/0.6873, allocations: 1.75 MB / 0.8706 GB, free: 396 kB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.457e-06/0.6873, allocations: 4 kB / 0.8706 GB, free: 392 kB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000238/0.6875, allocations: 59.95 kB / 0.8706 GB, free: 332 kB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0004338/0.688, allocations: 193.5 kB / 0.8708 GB, free: 132 kB / 0.5762 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.538e-05/0.688, allocations: 23.98 kB / 0.8708 GB, free: 108 kB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003862/0.6919, allocations: 4.183 MB / 0.8749 GB, free: 11.66 MB / 0.5919 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.412e-06/0.6919, allocations: 0 / 0.8749 GB, free: 11.66 MB / 0.5919 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001872/0.6938, allocations: 1.181 MB / 0.8761 GB, free: 10.45 MB / 0.5919 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0002994/0.6941, allocations: 251.2 kB / 0.8763 GB, free: 10.19 MB / 0.5919 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.699e-05/0.6942, allocations: 15.98 kB / 0.8763 GB, free: 10.17 MB / 0.5919 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003305/0.6945, allocations: 47.88 kB / 0.8764 GB, free: 10.12 MB / 0.5919 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001382/0.6947, allocations: 64.56 kB / 0.8764 GB, free: 10.06 MB / 0.5919 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.018e-05/0.6947, allocations: 16 kB / 0.8764 GB, free: 10.05 MB / 0.5919 GB
Notification: Performance of sorting global known variables: time 0.001571/0.6963, allocations: 1.545 MB / 0.8779 GB, free: 8.504 MB / 0.5919 GB
Notification: Performance of sort global known variables: time 1.5e-07/0.6963, allocations: 0 / 0.8779 GB, free: 8.504 MB / 0.5919 GB
Notification: Performance of remove unused functions: time 0.000829/0.6972, allocations: 223.7 kB / 0.8782 GB, free: 8.285 MB / 0.5919 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: 15 ($whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,intGai.nextTimeEvent,intGai.nextTimeEventScaled,reference.nextTimeEvent,reference.nextTimeEventScaled,setTemp.nextTimeEvent,setTemp.nextTimeEventScaled,assEqu.satisfied,assEqu.nFai,mean.y_last)
 * Number of discrete states: 9 (intGai.nextTimeEvent,reference.nextTimeEvent,setTemp.nextTimeEvent,mean.x,assEqu.satisfied,assEqu.nFai,setTemp.nextTimeEventScaled,reference.nextTimeEventScaled,intGai.nextTimeEventScaled)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (34):
 * Single equations (assignments): 24
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 8
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 2 {(2,100.0%) 14,(1,100.0%) 3}
 * Non-linear torn systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 0.001088/0.6983, allocations: 498.1 kB / 0.8786 GB, free: 7.98 MB / 0.5919 GB
Notification: Performance of simCode: created initialization part: time 0.001485/0.6997, allocations: 0.7848 MB / 0.8794 GB, free: 7.184 MB / 0.5919 GB
Notification: Performance of simCode: created event and clocks part: time 2.485e-06/0.6998, allocations: 0 / 0.8794 GB, free: 7.184 MB / 0.5919 GB
Notification: Performance of simCode: created simulation system equations: time 0.0008665/0.7006, allocations: 0.5896 MB / 0.88 GB, free: 6.562 MB / 0.5919 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001011/0.7017, allocations: 219.3 kB / 0.8802 GB, free: 6.355 MB / 0.5919 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004093/0.7058, allocations: 3.129 MB / 0.8832 GB, free: 3.199 MB / 0.5919 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008582/0.7066, allocations: 1.243 MB / 0.8845 GB, free: 1.926 MB / 0.5919 GB
Notification: Performance of simCode: alias equations: time 0.0003572/0.707, allocations: 105.1 kB / 0.8846 GB, free: 1.82 MB / 0.5919 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001221/0.7071, allocations: 51.42 kB / 0.8846 GB, free: 1.77 MB / 0.5919 GB
Notification: Performance of SimCode: time 8.61e-07/0.7071, allocations: 0 / 0.8846 GB, free: 1.77 MB / 0.5919 GB
Notification: Performance of Templates: time 0.01809/0.7252, allocations: 10.27 MB / 0.8946 GB, free: 7.656 MB / 0.6075 GB
make -j1 -f BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.makefile
(rm -f BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.pipe ; mkfifo BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.pipe >> ../files/BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.sim & ./BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6  -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase6.pipe 2>&1)