Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) 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) Running command: "" <> buildModelFMU(Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient,fileNamePrefix="Buildings_maint_7_0_x_Buildings_BoundaryConditions_SolarIrradiation_BaseClasses_Examples_BrighteningCoefficient",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient,fileNamePrefix="Buildings_maint_7_0_x_Buildings_BoundaryConditions_SolarIrradiation_BaseClasses_Examples_BrighteningCoefficient",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.456/1.456, allocations: 252 MB / 267.3 MB, free: 10.85 MB / 218.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001094/0.001094, allocations: 168.1 kB / 327 MB, free: 2.109 MB / 250.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.977/1.977, allocations: 205.4 MB / 0.578 GB, free: 20.16 MB / 426.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0008586/0.0008585, allocations: 82.36 kB / 0.6826 GB, free: 12.79 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 0.0003951/0.0003954, allocations: 9.281 kB / 0.7971 GB, free: 135.1 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.299/0.2995, allocations: 106.3 MB / 0.9009 GB, free: 63.44 MB / 0.6042 GB Notification: Performance of NFInst.instantiate(Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient): time 0.006327/0.3059, allocations: 3.99 MB / 0.9048 GB, free: 59.43 MB / 0.6042 GB Notification: Performance of NFInst.instExpressions: time 0.1875/0.4934, allocations: 146.5 MB / 1.048 GB, free: 8.395 MB / 0.698 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0009703/0.4945, allocations: 19.94 kB / 1.048 GB, free: 8.375 MB / 0.698 GB Notification: Performance of NFTyping.typeComponents: time 0.000583/0.4951, allocations: 146.8 kB / 1.048 GB, free: 8.23 MB / 0.698 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/BoundaryConditions/WeatherData/BaseClasses/getHeaderElementTMY3.mo:2:1-105:25:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘ contains a call to impure function ‘Modelica.Utilities.Streams.readLine‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/BoundaryConditions/WeatherData/BaseClasses/getLongitudeTMY3.mo:2:1-48:21:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLongitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/BoundaryConditions/WeatherData/BaseClasses/getLatitudeTMY3.mo:2:1-48:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLatitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/BoundaryConditions/WeatherData/BaseClasses/getTimeZoneTMY3.mo:2:1-47:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getTimeZoneTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. Notification: Performance of NFTyping.typeBindings: time 0.001559/0.4967, allocations: 369.2 kB / 1.048 GB, free: 7.871 MB / 0.698 GB Notification: Performance of NFTyping.typeClassSections: time 0.002468/0.4991, allocations: 0.7477 MB / 1.049 GB, free: 7.133 MB / 0.698 GB Notification: Performance of NFFlatten.flatten: time 0.001856/0.501, allocations: 1.254 MB / 1.05 GB, free: 5.871 MB / 0.698 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001156/0.5022, allocations: 0.666 MB / 1.051 GB, free: 5.18 MB / 0.698 GB Notification: Performance of NFEvalConstants.evaluate: time 0.000715/0.5029, allocations: 366.2 kB / 1.051 GB, free: 4.82 MB / 0.698 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005948/0.5035, allocations: 425.7 kB / 1.052 GB, free: 4.402 MB / 0.698 GB Notification: Performance of NFPackage.collectConstants: time 0.0001047/0.5036, allocations: 35.94 kB / 1.052 GB, free: 4.367 MB / 0.698 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0009562/0.5046, allocations: 319.7 kB / 1.052 GB, free: 4.055 MB / 0.698 GB Notification: Performance of NFScalarize.scalarize: time 0.000269/0.5049, allocations: 207 kB / 1.052 GB, free: 3.852 MB / 0.698 GB Notification: Performance of NFVerifyModel.verify: time 0.0004569/0.5053, allocations: 486.6 kB / 1.053 GB, free: 3.367 MB / 0.698 GB Notification: Performance of NFConvertDAE.convert: time 0.001532/0.5069, allocations: 1.507 MB / 1.054 GB, free: 1.855 MB / 0.698 GB Notification: Performance of FrontEnd - DAE generated: time 6.522e-06/0.5069, allocations: 0 / 1.054 GB, free: 1.855 MB / 0.698 GB Notification: Performance of FrontEnd: time 2.736e-06/0.5069, allocations: 0 / 1.054 GB, free: 1.855 MB / 0.698 GB Notification: Performance of Transformations before backend: time 1.289e-05/0.5069, allocations: 0 / 1.054 GB, free: 1.855 MB / 0.698 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 257 * Number of variables: 257 Notification: Performance of Generate backend data structure: time 0.002512/0.5094, allocations: 1.286 MB / 1.055 GB, free: 0.5195 MB / 0.698 GB Notification: Performance of prepare preOptimizeDAE: time 5.549e-05/0.5095, allocations: 12.03 kB / 1.055 GB, free: 0.5078 MB / 0.698 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002001/0.5097, allocations: 156.5 kB / 1.056 GB, free: 356 kB / 0.698 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.6039/1.114, allocations: 0.7847 MB / 1.056 GB, free: 155.8 MB / 0.698 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001689/1.115, allocations: 0.7572 MB / 1.057 GB, free: 155.6 MB / 0.698 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.488e-05/1.115, allocations: 78.38 kB / 1.057 GB, free: 155.6 MB / 0.698 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001448/1.116, allocations: 95.12 kB / 1.057 GB, free: 155.6 MB / 0.698 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003109/1.119, allocations: 1.353 MB / 1.059 GB, free: 155.4 MB / 0.698 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.528e-05/1.119, allocations: 3.938 kB / 1.059 GB, free: 155.4 MB / 0.698 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001216/1.119, allocations: 43.66 kB / 1.059 GB, free: 155.4 MB / 0.698 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.664e-05/1.119, allocations: 27.09 kB / 1.059 GB, free: 155.4 MB / 0.698 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004657/1.124, allocations: 1.841 MB / 1.06 GB, free: 155.4 MB / 0.698 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.006382/1.13, allocations: 3.154 MB / 1.064 GB, free: 154.5 MB / 0.698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003191/1.133, allocations: 1.227 MB / 1.065 GB, free: 154.4 MB / 0.698 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001619/1.135, allocations: 0.556 MB / 1.065 GB, free: 154.4 MB / 0.698 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006729/1.135, allocations: 478.7 kB / 1.066 GB, free: 153.9 MB / 0.698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002045/1.138, allocations: 0.7243 MB / 1.066 GB, free: 153.8 MB / 0.698 GB Notification: Performance of pre-optimization done (n=99): time 3.937e-06/1.138, allocations: 0 / 1.066 GB, free: 153.8 MB / 0.698 GB Notification: Performance of matching and sorting (n=99): time 0.006393/1.144, allocations: 1.816 MB / 1.068 GB, free: 153.6 MB / 0.698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.629e-05/1.144, allocations: 196.1 kB / 1.068 GB, free: 153.4 MB / 0.698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001069/1.145, allocations: 0.5889 MB / 1.069 GB, free: 153.2 MB / 0.698 GB Notification: Performance of collectPreVariables (initialization): time 0.000111/1.145, allocations: 46.2 kB / 1.069 GB, free: 153.2 MB / 0.698 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003923/1.146, allocations: 416.2 kB / 1.069 GB, free: 153 MB / 0.698 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003213/1.146, allocations: 325.6 kB / 1.07 GB, free: 152.8 MB / 0.698 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.887e-05/1.146, allocations: 17.16 kB / 1.07 GB, free: 152.8 MB / 0.698 GB Notification: Performance of setup shared object (initialization): time 0.0001801/1.146, allocations: 383.6 kB / 1.07 GB, free: 152.5 MB / 0.698 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001576/1.148, allocations: 452.2 kB / 1.071 GB, free: 152.5 MB / 0.698 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001651/1.149, allocations: 0.5633 MB / 1.071 GB, free: 152.4 MB / 0.698 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003147/1.153, allocations: 0.9895 MB / 1.072 GB, free: 152.3 MB / 0.698 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.261e-06/1.153, allocations: 0.7812 kB / 1.072 GB, free: 152.3 MB / 0.698 GB Notification: Performance of matching and sorting (n=105) (initialization): time 0.004271/1.157, allocations: 1.234 MB / 1.073 GB, free: 152.2 MB / 0.698 GB Notification: Performance of prepare postOptimizeDAE: time 2.797e-05/1.157, allocations: 5.625 kB / 1.073 GB, free: 152.2 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.173e-05/1.157, allocations: 1.25 kB / 1.073 GB, free: 152.2 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006296/1.158, allocations: 84.83 kB / 1.073 GB, free: 152.2 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001359/1.159, allocations: 240.2 kB / 1.074 GB, free: 152.1 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001902/1.161, allocations: 1.521 MB / 1.075 GB, free: 150.8 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001256/1.162, allocations: 141.7 kB / 1.075 GB, free: 150.8 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001132/1.162, allocations: 38.33 kB / 1.075 GB, free: 150.8 MB / 0.698 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition2,$whenCondition1,$PRE.weaDat.conTimMin.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTim.tNext) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (103): * Single equations (assignments): 102 * 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 {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0006281/1.163, allocations: 277.1 kB / 1.076 GB, free: 150.7 MB / 0.698 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001586/1.163, allocations: 87.09 kB / 1.076 GB, free: 150.6 MB / 0.698 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004593/1.168, allocations: 1.569 MB / 1.077 GB, free: 150.2 MB / 0.698 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.681e-05/1.168, allocations: 11.03 kB / 1.077 GB, free: 150.2 MB / 0.698 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.596e-06/1.168, allocations: 0 / 1.077 GB, free: 150.2 MB / 0.698 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.444e-05/1.168, allocations: 4.734 kB / 1.077 GB, free: 150.2 MB / 0.698 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001485/1.169, allocations: 1.086 MB / 1.078 GB, free: 149.4 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.484e-06/1.169, allocations: 5.031 kB / 1.078 GB, free: 149.4 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001296/1.171, allocations: 240.5 kB / 1.078 GB, free: 149.4 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005149/1.171, allocations: 90.61 kB / 1.079 GB, free: 149.3 MB / 0.698 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.423e-05/1.171, allocations: 29.3 kB / 1.079 GB, free: 149.3 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001607/1.173, allocations: 1.551 MB / 1.08 GB, free: 147.8 MB / 0.698 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.442e-06/1.173, allocations: 4.062 kB / 1.08 GB, free: 147.8 MB / 0.698 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003805/1.177, allocations: 1.341 MB / 1.081 GB, free: 147.1 MB / 0.698 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004798/1.177, allocations: 310 kB / 1.082 GB, free: 146.8 MB / 0.698 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001277/1.177, allocations: 17.44 kB / 1.082 GB, free: 146.8 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001048/1.178, allocations: 126.7 kB / 1.082 GB, free: 146.8 MB / 0.698 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002033/1.179, allocations: 76.8 kB / 1.082 GB, free: 146.7 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001124/1.179, allocations: 46.81 kB / 1.082 GB, free: 146.7 MB / 0.698 GB Notification: Performance of sorting global known variables: time 0.000563/1.179, allocations: 428.8 kB / 1.082 GB, free: 146.5 MB / 0.698 GB Notification: Performance of sort global known variables: time 1.3e-07/1.179, allocations: 0 / 1.082 GB, free: 146.5 MB / 0.698 GB Notification: Performance of remove unused functions: time 0.0009555/1.18, allocations: 342.5 kB / 1.083 GB, free: 146.4 MB / 0.698 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of discrete states: 2 (weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (111): * Single equations (assignments): 108 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.005303/1.186, allocations: 2.367 MB / 1.085 GB, free: 145 MB / 0.698 GB Notification: Performance of simCode: created initialization part: time 0.004267/1.19, allocations: 1.26 MB / 1.086 GB, free: 144.4 MB / 0.698 GB Notification: Performance of simCode: created event and clocks part: time 6.943e-06/1.19, allocations: 3.438 kB / 1.086 GB, free: 144.4 MB / 0.698 GB Notification: Performance of simCode: created simulation system equations: time 0.001884/1.192, allocations: 0.7621 MB / 1.087 GB, free: 144 MB / 0.698 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001355/1.193, allocations: 266.6 kB / 1.087 GB, free: 143.8 MB / 0.698 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01573/1.209, allocations: 8.298 MB / 1.095 GB, free: 135.8 MB / 0.698 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004687/1.209, allocations: 1.055 MB / 1.096 GB, free: 134.7 MB / 0.698 GB Notification: Performance of simCode: alias equations: time 0.001475/1.211, allocations: 327 kB / 1.097 GB, free: 134.4 MB / 0.698 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000628/1.212, allocations: 415.2 kB / 1.097 GB, free: 134 MB / 0.698 GB Notification: Performance of SimCode: time 7.01e-07/1.212, allocations: 0 / 1.097 GB, free: 134 MB / 0.698 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04065/1.252, allocations: 21.7 MB / 1.118 GB, free: 112.6 MB / 0.698 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001842/1.252, allocations: 329.6 kB / 1.119 GB, free: 112.3 MB / 0.698 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.133/4.385, allocations: 5.625 kB / 1.119 GB, free: 112.3 MB / 0.698 GB (rm -f Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient.pipe >> ../files/Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_7_0_x_Buildings_BoundaryConditions_SolarIrradiation_BaseClasses_Examples_BrighteningCoefficient_fmu --startTime=0 --stopTime=8.64e+06 --timeout=50 --tolerance=1e-06 Buildings_maint_7_0_x_Buildings_BoundaryConditions_SolarIrradiation_BaseClasses_Examples_BrighteningCoefficient.fmu > Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.BrighteningCoefficient.pipe 2>&1)