Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar.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) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) 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(Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar") translateModel(Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.002195/0.002195, allocations: 103.4 kB / 15.33 MB, free: 0.5078 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001706/0.001706, allocations: 195.6 kB / 16.25 MB, free: 6.621 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.468/1.468, allocations: 205.1 MB / 222.1 MB, free: 4.684 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.531/1.531, allocations: 251.6 MB / 0.5089 GB, free: 3.324 MB / 414.1 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 0.001315/0.001316, allocations: 64.33 kB / 0.6217 GB, free: 1.871 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4472/0.4485, allocations: 104.7 MB / 0.724 GB, free: 13.09 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar): time 0.06664/0.5152, allocations: 74.6 MB / 0.7968 GB, free: 2.23 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.01909/0.5343, allocations: 14.89 MB / 0.8114 GB, free: 3.305 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002316/0.5367, allocations: 59.62 kB / 0.8114 GB, free: 3.246 MB / 0.6231 GB Notification: Performance of NFTyping.typeComponents: time 0.002056/0.5388, allocations: 0.719 MB / 0.8121 GB, free: 2.523 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.0064/0.5452, allocations: 2.384 MB / 0.8145 GB, free: 132 kB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.003222/0.5485, allocations: 1.266 MB / 0.8157 GB, free: 14.88 MB / 0.6387 GB Notification: Performance of NFFlatten.flatten: time 0.00535/0.5538, allocations: 4.373 MB / 0.82 GB, free: 10.49 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001934/0.5558, allocations: 1.414 MB / 0.8213 GB, free: 9.039 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003538/0.5593, allocations: 1.649 MB / 0.823 GB, free: 7.391 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001889/0.5612, allocations: 1.256 MB / 0.8242 GB, free: 6.129 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.000255/0.5615, allocations: 160 kB / 0.8243 GB, free: 5.973 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002751/0.5643, allocations: 1.415 MB / 0.8257 GB, free: 4.555 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.0003622/0.5646, allocations: 390.6 kB / 0.8261 GB, free: 4.172 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.001089/0.5657, allocations: 0.906 MB / 0.827 GB, free: 3.262 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.004573/0.5703, allocations: 2.836 MB / 0.8297 GB, free: 428 kB / 0.6387 GB Notification: Performance of FrontEnd - DAE generated: time 5.29e-06/0.5703, allocations: 0 / 0.8297 GB, free: 428 kB / 0.6387 GB Notification: Performance of FrontEnd: time 1.513e-06/0.5704, allocations: 0 / 0.8297 GB, free: 428 kB / 0.6387 GB Notification: Performance of Transformations before backend: time 2.124e-05/0.5704, allocations: 4 kB / 0.8297 GB, free: 424 kB / 0.6387 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 240 * Number of variables: 240 Notification: Performance of Generate backend data structure: time 0.003751/0.5741, allocations: 2.071 MB / 0.8318 GB, free: 14.28 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 3.681e-05/0.5742, allocations: 12.03 kB / 0.8318 GB, free: 14.27 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007872/0.575, allocations: 230.8 kB / 0.832 GB, free: 14.04 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002297/0.5773, allocations: 1.474 MB / 0.8334 GB, free: 12.51 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.008e-05/0.5774, allocations: 70 kB / 0.8335 GB, free: 12.44 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001601/0.5775, allocations: 104 kB / 0.8336 GB, free: 12.34 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00202/0.5795, allocations: 1.096 MB / 0.8347 GB, free: 11.21 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.853e-05/0.5796, allocations: 4 kB / 0.8347 GB, free: 11.2 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.907e-05/0.5797, allocations: 36 kB / 0.8347 GB, free: 11.17 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.279e-05/0.5797, allocations: 31.94 kB / 0.8347 GB, free: 11.14 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001829/0.5816, allocations: 0.89 MB / 0.8356 GB, free: 10.25 MB / 0.6544 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 0.005799/0.5874, allocations: 4.899 MB / 0.8404 GB, free: 5.055 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001417/0.5888, allocations: 0.6194 MB / 0.841 GB, free: 4.43 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007/0.5895, allocations: 358.2 kB / 0.8413 GB, free: 4.082 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000859/0.5904, allocations: 0.8238 MB / 0.8421 GB, free: 3.074 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.802e-05/0.5904, allocations: 43.12 kB / 0.8422 GB, free: 3.023 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=61): time 2.564e-06/0.5905, allocations: 0 / 0.8422 GB, free: 3.023 MB / 0.6544 GB Notification: Performance of matching and sorting (n=61): time 0.007006/0.5975, allocations: 1.689 MB / 0.8438 GB, free: 1.309 MB / 0.6544 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.219e-05/0.5976, allocations: 55.97 kB / 0.8439 GB, free: 1.238 MB / 0.6544 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001836/0.5994, allocations: 1.206 MB / 0.8451 GB, free: 16 kB / 0.6544 GB Notification: Performance of collectPreVariables (initialization): time 0.0001166/0.5995, allocations: 45.7 kB / 0.8451 GB, free: 15.96 MB / 0.67 GB Notification: Performance of collectInitialEqns (initialization): time 0.000501/0.6, allocations: 0.6103 MB / 0.8457 GB, free: 15.35 MB / 0.67 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002159/0.6003, allocations: 209 kB / 0.8459 GB, free: 15.14 MB / 0.67 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002432/0.6005, allocations: 166.5 kB / 0.8461 GB, free: 14.97 MB / 0.67 GB Notification: Performance of setup shared object (initialization): time 0.0001292/0.6006, allocations: 330 kB / 0.8464 GB, free: 14.64 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006312/0.6013, allocations: 288.7 kB / 0.8467 GB, free: 14.36 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009192/0.6022, allocations: 0.4976 MB / 0.8471 GB, free: 13.78 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001341/0.6036, allocations: 0.7128 MB / 0.8478 GB, free: 13.02 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.14e-06/0.6036, allocations: 0 / 0.8478 GB, free: 13.02 MB / 0.67 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.004509/0.6081, allocations: 1.269 MB / 0.8491 GB, free: 11.74 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 2.172e-05/0.6081, allocations: 11.98 kB / 0.8491 GB, free: 11.73 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.777e-05/0.6082, allocations: 4 kB / 0.8491 GB, free: 11.73 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005606/0.6087, allocations: 140.9 kB / 0.8492 GB, free: 11.59 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005902/0.6093, allocations: 159.7 kB / 0.8494 GB, free: 11.43 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000795/0.6101, allocations: 0.7084 MB / 0.8501 GB, free: 10.7 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001216/0.6114, allocations: 163 kB / 0.8502 GB, free: 10.54 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.841e-05/0.6114, allocations: 31.98 kB / 0.8503 GB, free: 10.5 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001064/0.6125, allocations: 0.5526 MB / 0.8508 GB, free: 9.949 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007645/0.6133, allocations: 0.492 MB / 0.8513 GB, free: 9.383 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001287/0.6146, allocations: 0.7127 MB / 0.852 GB, free: 8.617 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.464e-06/0.6146, allocations: 0 / 0.852 GB, free: 8.617 MB / 0.67 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.004465/0.6191, allocations: 1.265 MB / 0.8532 GB, free: 7.34 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 1.279e-05/0.6191, allocations: 4 kB / 0.8532 GB, free: 7.336 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.604e-06/0.6191, allocations: 4 kB / 0.8532 GB, free: 7.332 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004783/0.6196, allocations: 141 kB / 0.8534 GB, free: 7.191 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005825/0.6202, allocations: 167.6 kB / 0.8535 GB, free: 7.027 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007581/0.621, allocations: 0.6968 MB / 0.8542 GB, free: 6.305 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00123/0.6222, allocations: 139.5 kB / 0.8543 GB, free: 6.168 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.712e-05/0.6223, allocations: 39.98 kB / 0.8544 GB, free: 6.129 MB / 0.67 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (78): * Single equations (assignments): 77 * Array equations: 0 * Algorithm blocks: 0 * 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 {(1,10)} Notification: Performance of prepare postOptimizeDAE: time 0.0002479/0.6225, allocations: 227.9 kB / 0.8546 GB, free: 5.898 MB / 0.67 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002181/0.6228, allocations: 134.4 kB / 0.8547 GB, free: 5.766 MB / 0.67 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004557/0.6273, allocations: 1.267 MB / 0.8559 GB, free: 4.484 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.859e-05/0.6274, allocations: 11.94 kB / 0.856 GB, free: 4.473 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.805e-06/0.6274, allocations: 0 / 0.856 GB, free: 4.473 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003985/0.6314, allocations: 1.099 MB / 0.857 GB, free: 3.336 MB / 0.67 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006369/0.6378, allocations: 2.598 MB / 0.8596 GB, free: 0.625 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.016e-05/0.6378, allocations: 7.984 kB / 0.8596 GB, free: 0.6172 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004797/0.6383, allocations: 115.8 kB / 0.8597 GB, free: 0.5039 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004696/0.6388, allocations: 129.2 kB / 0.8598 GB, free: 384 kB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.954e-05/0.6388, allocations: 23.98 kB / 0.8598 GB, free: 360 kB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004969/0.6438, allocations: 2.626 MB / 0.8624 GB, free: 13.57 MB / 0.6856 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.122e-06/0.6438, allocations: 4 kB / 0.8624 GB, free: 13.57 MB / 0.6856 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005344/0.6492, allocations: 1.699 MB / 0.8641 GB, free: 11.8 MB / 0.6856 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008493/0.6501, allocations: 299.2 kB / 0.8643 GB, free: 11.49 MB / 0.6856 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001899/0.6503, allocations: 19.98 kB / 0.8644 GB, free: 11.47 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009096/0.6512, allocations: 87.81 kB / 0.8644 GB, free: 11.38 MB / 0.6856 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001471/0.6513, allocations: 60.25 kB / 0.8645 GB, free: 11.32 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.178e-05/0.6514, allocations: 27.98 kB / 0.8645 GB, free: 11.3 MB / 0.6856 GB Notification: Performance of sorting global known variables: time 0.001219/0.6526, allocations: 0.866 MB / 0.8654 GB, free: 10.43 MB / 0.6856 GB Notification: Performance of sort global known variables: time 1.1e-07/0.6526, allocations: 0 / 0.8654 GB, free: 10.43 MB / 0.6856 GB Notification: Performance of remove unused functions: time 0.002023/0.6547, allocations: 0.7018 MB / 0.8661 GB, free: 9.727 MB / 0.6856 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 2 (heaPum.con.vol.dynBal.U,heaPum.eva.vol.dynBal.U) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (55): * Single equations (assignments): 50 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * 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 {(1,10)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0009296/0.6556, allocations: 461.8 kB / 0.8665 GB, free: 9.277 MB / 0.6856 GB Notification: Performance of simCode: created initialization part: time 0.002638/0.6583, allocations: 1.156 MB / 0.8676 GB, free: 8.117 MB / 0.6856 GB Notification: Performance of simCode: created event and clocks part: time 6.051e-06/0.6583, allocations: 0 / 0.8676 GB, free: 8.117 MB / 0.6856 GB Notification: Performance of simCode: created simulation system equations: time 0.001414/0.6597, allocations: 0.5643 MB / 0.8682 GB, free: 7.543 MB / 0.6856 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003465/0.6632, allocations: 0.8143 MB / 0.869 GB, free: 6.754 MB / 0.6856 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003859/0.667, allocations: 2.753 MB / 0.8717 GB, free: 3.93 MB / 0.6856 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007036/0.6678, allocations: 1.172 MB / 0.8728 GB, free: 2.727 MB / 0.6856 GB Notification: Performance of simCode: alias equations: time 0.001209/0.669, allocations: 305.8 kB / 0.8731 GB, free: 2.426 MB / 0.6856 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002335/0.6692, allocations: 115.3 kB / 0.8732 GB, free: 2.312 MB / 0.6856 GB Notification: Performance of SimCode: time 5.11e-07/0.6692, allocations: 0 / 0.8732 GB, free: 2.312 MB / 0.6856 GB Notification: Performance of Templates: time 0.05163/0.7209, allocations: 31.74 MB / 0.9042 GB, free: 2.988 MB / 0.7169 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar.makefile (rm -f Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaCar.pipe 2>&1)