Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor.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/Buildings 10.1.1-maint.10.0.x/package.mo", uses=false) Using package Buildings with version 10.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/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: "" <> buildModelFMU(Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor,fileNamePrefix="Buildings_10_Buildings_Fluid_HeatPumps_Validation_EquationFitReversible_ScalingFactor",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor,fileNamePrefix="Buildings_10_Buildings_Fluid_HeatPumps_Validation_EquationFitReversible_ScalingFactor",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001266/0.001266, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001244/0.001245, allocations: 194.7 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.234/1.234, allocations: 222.9 MB / 240.2 MB, free: 4.414 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 2.305/2.305, allocations: 437 MB / 0.7104 GB, free: 5.047 MB / 0.5606 GB Notification: Performance of FrontEnd - loaded program: time 0.001447/0.001447, allocations: 75.88 kB / 0.8693 GB, free: 4.559 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.472/0.4735, allocations: 151.6 MB / 1.017 GB, free: 2.457 MB / 0.7637 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor): time 0.1014/0.5749, allocations: 115.6 MB / 1.13 GB, free: 14.43 MB / 0.8887 GB Notification: Performance of NFInst.instExpressions: time 0.02581/0.6008, allocations: 20.88 MB / 1.151 GB, free: 9.488 MB / 0.9044 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003057/0.6039, allocations: 115.4 kB / 1.151 GB, free: 9.375 MB / 0.9044 GB Notification: Performance of NFTyping.typeComponents: time 0.003866/0.6078, allocations: 1.642 MB / 1.152 GB, free: 7.723 MB / 0.9044 GB Notification: Performance of NFTyping.typeBindings: time 0.008869/0.6167, allocations: 3.972 MB / 1.156 GB, free: 3.734 MB / 0.9044 GB Notification: Performance of NFTyping.typeClassSections: time 0.006302/0.623, allocations: 2.852 MB / 1.159 GB, free: 0.9102 MB / 0.9044 GB Notification: Performance of NFFlatten.flatten: time 0.008682/0.6317, allocations: 8.058 MB / 1.167 GB, free: 8.828 MB / 0.92 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00371/0.6354, allocations: 2.684 MB / 1.17 GB, free: 6.086 MB / 0.92 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00533/0.6407, allocations: 2.964 MB / 1.172 GB, free: 3.121 MB / 0.92 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003273/0.644, allocations: 2.35 MB / 1.175 GB, free: 0.7617 MB / 0.92 GB Notification: Performance of NFPackage.collectConstants: time 0.0007605/0.6448, allocations: 332 kB / 1.175 GB, free: 448 kB / 0.92 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004358/0.6492, allocations: 2.043 MB / 1.177 GB, free: 14.39 MB / 0.9356 GB Notification: Performance of NFScalarize.scalarize: time 0.001006/0.6502, allocations: 0.9423 MB / 1.178 GB, free: 13.45 MB / 0.9356 GB Notification: Performance of NFVerifyModel.verify: time 0.002153/0.6523, allocations: 1.843 MB / 1.18 GB, free: 11.59 MB / 0.9356 GB Notification: Performance of NFConvertDAE.convert: time 0.005662/0.658, allocations: 5.492 MB / 1.185 GB, free: 6.086 MB / 0.9356 GB Notification: Performance of FrontEnd - DAE generated: time 3.877e-06/0.658, allocations: 0 / 1.185 GB, free: 6.086 MB / 0.9356 GB Notification: Performance of FrontEnd: time 1.342e-06/0.658, allocations: 0 / 1.185 GB, free: 6.086 MB / 0.9356 GB Notification: Performance of Transformations before backend: time 2.901e-05/0.6581, allocations: 0 / 1.185 GB, free: 6.086 MB / 0.9356 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 494 * Number of variables: 494 Notification: Performance of Generate backend data structure: time 0.005834/0.6639, allocations: 3.879 MB / 1.189 GB, free: 2.133 MB / 0.9356 GB Notification: Performance of prepare preOptimizeDAE: time 3.292e-05/0.6639, allocations: 11.97 kB / 1.189 GB, free: 2.121 MB / 0.9356 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000332/0.6643, allocations: 294.6 kB / 1.189 GB, free: 1.824 MB / 0.9356 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002498/0.6668, allocations: 0.5898 MB / 1.19 GB, free: 1.23 MB / 0.9356 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00347/0.6703, allocations: 2.508 MB / 1.192 GB, free: 14.66 MB / 0.9512 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002669/0.6705, allocations: 302.6 kB / 1.193 GB, free: 14.34 MB / 0.9512 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002746/0.6708, allocations: 211.9 kB / 1.193 GB, free: 14.13 MB / 0.9512 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004142/0.675, allocations: 2.563 MB / 1.195 GB, free: 11.44 MB / 0.9512 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.924e-05/0.675, allocations: 7.938 kB / 1.195 GB, free: 11.43 MB / 0.9512 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000208/0.6752, allocations: 84 kB / 1.195 GB, free: 11.35 MB / 0.9512 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.035e-05/0.6753, allocations: 63.88 kB / 1.195 GB, free: 11.29 MB / 0.9512 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004384/0.6797, allocations: 2.227 MB / 1.198 GB, free: 9.059 MB / 0.9512 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 0.01255/0.6923, allocations: 11.51 MB / 1.209 GB, free: 13.05 MB / 0.9669 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002675/0.695, allocations: 1.31 MB / 1.21 GB, free: 11.73 MB / 0.9669 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001606/0.6966, allocations: 0.808 MB / 1.211 GB, free: 10.92 MB / 0.9669 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0009093/0.6975, allocations: 1.327 MB / 1.212 GB, free: 9.301 MB / 0.9669 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001992/0.6995, allocations: 1.06 MB / 1.213 GB, free: 8.188 MB / 0.9669 GB Notification: Performance of pre-optimization done (n=115): time 2.835e-06/0.6995, allocations: 0 / 1.213 GB, free: 8.188 MB / 0.9669 GB Notification: Performance of matching and sorting (n=115): time 0.005321/0.7048, allocations: 2.387 MB / 1.216 GB, free: 5.793 MB / 0.9669 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001837/0.705, allocations: 491.6 kB / 1.216 GB, free: 5.203 MB / 0.9669 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003151/0.7082, allocations: 2.701 MB / 1.219 GB, free: 2.488 MB / 0.9669 GB Notification: Performance of collectPreVariables (initialization): time 0.0001303/0.7083, allocations: 57.7 kB / 1.219 GB, free: 2.426 MB / 0.9669 GB Notification: Performance of collectInitialEqns (initialization): time 0.001013/0.7094, allocations: 1.303 MB / 1.22 GB, free: 1.109 MB / 0.9669 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003346/0.7097, allocations: 402.2 kB / 1.22 GB, free: 0.7109 MB / 0.9669 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005024/0.7102, allocations: 343.2 kB / 1.221 GB, free: 380 kB / 0.9669 GB Notification: Performance of setup shared object (initialization): time 8.26e-05/0.7103, allocations: 309.1 kB / 1.221 GB, free: 68 kB / 0.9669 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001667/0.712, allocations: 0.7738 MB / 1.222 GB, free: 15.29 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002041/0.714, allocations: 1.305 MB / 1.223 GB, free: 13.76 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003403/0.7174, allocations: 1.864 MB / 1.225 GB, free: 11.75 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.279e-06/0.7174, allocations: 0 / 1.225 GB, free: 11.75 MB / 0.9825 GB Notification: Performance of matching and sorting (n=196) (initialization): time 0.004574/0.722, allocations: 2.256 MB / 1.227 GB, free: 9.48 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 4.014e-05/0.7221, allocations: 37.7 kB / 1.227 GB, free: 9.438 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.628e-05/0.7221, allocations: 12 kB / 1.227 GB, free: 9.426 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.707e-05/0.7221, allocations: 16.81 kB / 1.227 GB, free: 9.41 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001726/0.7239, allocations: 415.3 kB / 1.228 GB, free: 9.004 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.322e-05/0.7239, allocations: 23.94 kB / 1.228 GB, free: 8.98 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001928/0.7258, allocations: 257.8 kB / 1.228 GB, free: 8.727 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001404/0.726, allocations: 75.91 kB / 1.228 GB, free: 8.652 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002479/0.7285, allocations: 1.285 MB / 1.229 GB, free: 7.363 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002017/0.7305, allocations: 1.301 MB / 1.23 GB, free: 5.848 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.003352/0.7339, allocations: 1.849 MB / 1.232 GB, free: 3.852 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.318e-06/0.7339, allocations: 4 kB / 1.232 GB, free: 3.848 MB / 0.9825 GB Notification: Performance of matching and sorting (n=196) (initialization_lambda0): time 0.004484/0.7384, allocations: 2.252 MB / 1.234 GB, free: 1.578 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 2.961e-05/0.7384, allocations: 37.7 kB / 1.234 GB, free: 1.535 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.143e-05/0.7384, allocations: 8.875 kB / 1.234 GB, free: 1.527 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.682e-05/0.7384, allocations: 23.98 kB / 1.234 GB, free: 1.504 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001703/0.7402, allocations: 411.3 kB / 1.235 GB, free: 1.102 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.339e-05/0.7402, allocations: 19.94 kB / 1.235 GB, free: 1.082 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001939/0.7421, allocations: 211.2 kB / 1.235 GB, free: 0.875 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000137/0.7423, allocations: 75.91 kB / 1.235 GB, free: 0.8008 MB / 0.9825 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 45 * Number of states: 0 () * Number of discrete variables: 6 (uMod.count,$PRE.uMod.count,uMod.T_start,$PRE.uMod.T_start,reaToInt.y,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (195): * Single equations (assignments): 194 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0004016/0.7427, allocations: 283.8 kB / 1.235 GB, free: 0.5156 MB / 0.9825 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004488/0.7431, allocations: 280.5 kB / 1.236 GB, free: 244 kB / 0.9825 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004218/0.7474, allocations: 2.1 MB / 1.238 GB, free: 14.12 MB / 0.9981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.903e-05/0.7474, allocations: 15.98 kB / 1.238 GB, free: 14.11 MB / 0.9981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.503e-06/0.7474, allocations: 0 / 1.238 GB, free: 14.11 MB / 0.9981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003243/0.7507, allocations: 1.649 MB / 1.239 GB, free: 12.41 MB / 0.9981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007991/0.7587, allocations: 5.214 MB / 1.244 GB, free: 7.055 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.626e-06/0.7587, allocations: 4 kB / 1.244 GB, free: 7.051 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001349/0.76, allocations: 272 kB / 1.245 GB, free: 6.785 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.416e-05/0.7601, allocations: 16 kB / 1.245 GB, free: 6.77 MB / 0.9981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001058/0.7602, allocations: 35.91 kB / 1.245 GB, free: 6.734 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.208e-05/0.7602, allocations: 12 kB / 1.245 GB, free: 6.723 MB / 0.9981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.235e-05/0.7602, allocations: 15.88 kB / 1.245 GB, free: 6.707 MB / 0.9981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005673/0.7659, allocations: 3.082 MB / 1.248 GB, free: 3.527 MB / 0.9981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009669/0.7669, allocations: 0.5949 MB / 1.248 GB, free: 2.91 MB / 0.9981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004288/0.7673, allocations: 31.94 kB / 1.248 GB, free: 2.879 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001758/0.7691, allocations: 119.8 kB / 1.249 GB, free: 2.762 MB / 0.9981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002317/0.7693, allocations: 116.7 kB / 1.249 GB, free: 2.645 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001355/0.7695, allocations: 59.95 kB / 1.249 GB, free: 2.586 MB / 0.9981 GB Notification: Performance of sorting global known variables: time 0.002797/0.7723, allocations: 1.876 MB / 1.251 GB, free: 0.7109 MB / 0.9981 GB Notification: Performance of sort global known variables: time 2.31e-07/0.7723, allocations: 0 / 1.251 GB, free: 0.7109 MB / 0.9981 GB Notification: Performance of remove unused functions: time 0.4002/1.172, allocations: 1.448 MB / 1.252 GB, free: 223.1 MB / 0.9981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 25 * Number of states: 4 (heaPum.vol1.dynBal.U,heaPum.vol2.dynBal.U,heaPum1.vol1.dynBal.U,heaPum1.vol2.dynBal.U) * Number of discrete variables: 4 ($whenCondition1,reaToInt.y,uMod.T_start,uMod.count) * Number of discrete states: 1 (uMod.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (117): * Single equations (assignments): 109 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 6 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.00738/1.18, allocations: 4.213 MB / 1.256 GB, free: 221.9 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.007037/1.187, allocations: 3.177 MB / 1.259 GB, free: 220.7 MB / 0.9981 GB Notification: Performance of simCode: created event and clocks part: time 7.704e-06/1.187, allocations: 2.719 kB / 1.259 GB, free: 220.7 MB / 0.9981 GB Notification: Performance of simCode: created simulation system equations: time 0.002032/1.189, allocations: 0.9244 MB / 1.26 GB, free: 220.4 MB / 0.9981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.006315/1.195, allocations: 1.396 MB / 1.261 GB, free: 220.1 MB / 0.9981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.03021/1.226, allocations: 24.5 MB / 1.285 GB, free: 205.3 MB / 0.9981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009913/1.227, allocations: 1.761 MB / 1.287 GB, free: 204.4 MB / 0.9981 GB Notification: Performance of simCode: alias equations: time 0.003059/1.23, allocations: 0.7091 MB / 1.288 GB, free: 204.3 MB / 0.9981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00124/1.231, allocations: 1.155 MB / 1.289 GB, free: 203.4 MB / 0.9981 GB Notification: Performance of SimCode: time 6.61e-07/1.231, allocations: 0 / 1.289 GB, free: 203.4 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.262/2.493, allocations: 78.69 MB / 1.366 GB, free: 129.4 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate platform static: time 9.489/11.98, allocations: 6.75 kB / 1.366 GB, free: 129.4 MB / 0.9981 GB (rm -f Buildings_10_Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor.pipe ; mkfifo Buildings_10_Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor.pipe ; head -c 1048576 < Buildings_10_Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor.pipe >> ../files/Buildings_10_Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_10_Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor_res.mat --tempDir=temp_Buildings_10_Buildings_Fluid_HeatPumps_Validation_EquationFitReversible_ScalingFactor_fmu --startTime=0 --stopTime=5000 --timeout=50 --tolerance=1e-06 Buildings_10_Buildings_Fluid_HeatPumps_Validation_EquationFitReversible_ScalingFactor.fmu > Buildings_10_Buildings.Fluid.HeatPumps.Validation.EquationFitReversible_ScalingFactor.pipe 2>&1)