Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.DiffuseIsotropic.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.DiffuseIsotropic,fileNamePrefix="Buildings_maint_7_0_x_Buildings_BoundaryConditions_SolarIrradiation_BaseClasses_Examples_DiffuseIsotropic",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.DiffuseIsotropic,fileNamePrefix="Buildings_maint_7_0_x_Buildings_BoundaryConditions_SolarIrradiation_BaseClasses_Examples_DiffuseIsotropic",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 1.451/1.451, allocations: 252 MB / 267 MB, free: 10.96 MB / 218.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001112/0.001112, allocations: 188.9 kB / 326.6 MB, free: 2.191 MB / 250.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 2.044/2.044, allocations: 205.4 MB / 0.5777 GB, free: 20.19 MB / 426.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0009243/0.0009242, allocations: 87.59 kB / 0.6823 GB, free: 12.85 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 0.000367/0.000367, allocations: 9.312 kB / 0.7965 GB, free: 135.2 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2601/0.2605, allocations: 106.3 MB / 0.9003 GB, free: 63.75 MB / 0.6042 GB Notification: Performance of NFInst.instantiate(Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.DiffuseIsotropic): time 0.004443/0.265, allocations: 3.525 MB / 0.9038 GB, free: 60.21 MB / 0.6042 GB Notification: Performance of NFInst.instExpressions: time 0.1675/0.4325, allocations: 136.4 MB / 1.037 GB, free: 3.398 MB / 0.6823 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008705/0.4334, allocations: 19.88 kB / 1.037 GB, free: 3.379 MB / 0.6823 GB Notification: Performance of NFTyping.typeComponents: time 0.0005325/0.434, allocations: 123 kB / 1.037 GB, free: 3.258 MB / 0.6823 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 0.00148/0.4355, allocations: 344.2 kB / 1.037 GB, free: 2.922 MB / 0.6823 GB Notification: Performance of NFTyping.typeClassSections: time 0.002032/0.4375, allocations: 0.5853 MB / 1.038 GB, free: 2.344 MB / 0.6823 GB Notification: Performance of NFFlatten.flatten: time 0.001307/0.4388, allocations: 0.9888 MB / 1.039 GB, free: 1.348 MB / 0.6823 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007513/0.4396, allocations: 451 kB / 1.039 GB, free: 0.9062 MB / 0.6823 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0005059/0.4401, allocations: 282.7 kB / 1.04 GB, free: 0.6289 MB / 0.6823 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0004279/0.4406, allocations: 306.4 kB / 1.04 GB, free: 336 kB / 0.6823 GB Notification: Performance of NFPackage.collectConstants: time 7.803e-05/0.4406, allocations: 20 kB / 1.04 GB, free: 316 kB / 0.6823 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0007652/0.4414, allocations: 263.8 kB / 1.04 GB, free: 52 kB / 0.6823 GB Notification: Performance of NFScalarize.scalarize: time 0.0001919/0.4416, allocations: 155.3 kB / 1.04 GB, free: 15.9 MB / 0.698 GB Notification: Performance of NFVerifyModel.verify: time 0.0001651/0.4418, allocations: 181.1 kB / 1.041 GB, free: 15.71 MB / 0.698 GB Notification: Performance of NFConvertDAE.convert: time 0.00106/0.4429, allocations: 1.01 MB / 1.042 GB, free: 14.7 MB / 0.698 GB Notification: Performance of FrontEnd - DAE generated: time 6.873e-06/0.4429, allocations: 0 / 1.042 GB, free: 14.7 MB / 0.698 GB Notification: Performance of FrontEnd: time 2.946e-06/0.4429, allocations: 3.938 kB / 1.042 GB, free: 14.7 MB / 0.698 GB Notification: Performance of Transformations before backend: time 1.14e-05/0.4429, allocations: 4 kB / 1.042 GB, free: 14.7 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: 194 * Number of variables: 194 Notification: Performance of Generate backend data structure: time 0.00213/0.445, allocations: 1.096 MB / 1.043 GB, free: 13.55 MB / 0.698 GB Notification: Performance of prepare preOptimizeDAE: time 5.34e-05/0.4451, allocations: 8.031 kB / 1.043 GB, free: 13.54 MB / 0.698 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001957/0.4453, allocations: 130.7 kB / 1.043 GB, free: 13.4 MB / 0.698 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0009033/0.4462, allocations: 182.7 kB / 1.043 GB, free: 13.22 MB / 0.698 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001018/0.4473, allocations: 0.6719 MB / 1.044 GB, free: 12.51 MB / 0.698 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.234e-05/0.4473, allocations: 58 kB / 1.044 GB, free: 12.45 MB / 0.698 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.486e-05/0.4474, allocations: 72 kB / 1.044 GB, free: 12.38 MB / 0.698 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001555/0.449, allocations: 0.8325 MB / 1.045 GB, free: 11.51 MB / 0.698 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.908e-05/0.449, allocations: 8 kB / 1.045 GB, free: 11.5 MB / 0.698 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.453e-05/0.4491, allocations: 36 kB / 1.045 GB, free: 11.47 MB / 0.698 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.14e-05/0.4491, allocations: 19.95 kB / 1.045 GB, free: 11.45 MB / 0.698 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001671/0.4508, allocations: 1.05 MB / 1.046 GB, free: 10.39 MB / 0.698 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00384/0.4547, allocations: 2.357 MB / 1.048 GB, free: 7.969 MB / 0.698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001216/0.4559, allocations: 0.712 MB / 1.049 GB, free: 7.246 MB / 0.698 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004859/0.4564, allocations: 270.4 kB / 1.049 GB, free: 6.98 MB / 0.698 GB Notification: Performance of preOpt evalFunc (simulation): time 9.075e-05/0.4565, allocations: 28.66 kB / 1.049 GB, free: 6.953 MB / 0.698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0008379/0.4574, allocations: 427.1 kB / 1.049 GB, free: 6.52 MB / 0.698 GB Notification: Performance of pre-optimization done (n=71): time 3.045e-06/0.4574, allocations: 0 / 1.049 GB, free: 6.52 MB / 0.698 GB Notification: Performance of matching and sorting (n=71): time 0.002964/0.4603, allocations: 1.069 MB / 1.05 GB, free: 5.422 MB / 0.698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000109/0.4605, allocations: 196.5 kB / 1.051 GB, free: 5.188 MB / 0.698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007432/0.4612, allocations: 0.5665 MB / 1.051 GB, free: 4.613 MB / 0.698 GB Notification: Performance of collectPreVariables (initialization): time 7.039e-05/0.4613, allocations: 41.7 kB / 1.051 GB, free: 4.566 MB / 0.698 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003568/0.4617, allocations: 372.2 kB / 1.051 GB, free: 4.195 MB / 0.698 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002124/0.4619, allocations: 232.6 kB / 1.052 GB, free: 3.965 MB / 0.698 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.547e-05/0.4619, allocations: 16 kB / 1.052 GB, free: 3.949 MB / 0.698 GB Notification: Performance of setup shared object (initialization): time 0.0001834/0.4621, allocations: 374.8 kB / 1.052 GB, free: 3.574 MB / 0.698 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004272/0.4626, allocations: 217.2 kB / 1.052 GB, free: 3.363 MB / 0.698 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005315/0.4631, allocations: 310.8 kB / 1.053 GB, free: 3.031 MB / 0.698 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005213/0.4636, allocations: 263.1 kB / 1.053 GB, free: 2.773 MB / 0.698 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.237e-06/0.4636, allocations: 0 / 1.053 GB, free: 2.773 MB / 0.698 GB Notification: Performance of matching and sorting (n=77) (initialization): time 0.001662/0.4653, allocations: 0.7159 MB / 1.054 GB, free: 2.047 MB / 0.698 GB Notification: Performance of prepare postOptimizeDAE: time 2.435e-05/0.4653, allocations: 14.53 kB / 1.054 GB, free: 2.035 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.141e-05/0.4654, allocations: 3.984 kB / 1.054 GB, free: 2.031 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006374/0.466, allocations: 88.72 kB / 1.054 GB, free: 1.941 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005516/0.4666, allocations: 131.8 kB / 1.054 GB, free: 1.812 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002174/0.4688, allocations: 1.518 MB / 1.055 GB, free: 164 kB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006725/0.4694, allocations: 88.02 kB / 1.055 GB, free: 76 kB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.285e-05/0.4695, allocations: 23.98 kB / 1.055 GB, free: 52 kB / 0.698 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * 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 (75): * Single equations (assignments): 74 * 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: 0 * Non-linear torn systems: 1 {1 2} Notification: Performance of prepare postOptimizeDAE: time 0.5394/1.009, allocations: 246.8 kB / 1.056 GB, free: 154.4 MB / 0.698 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000208/1.009, allocations: 72.81 kB / 1.056 GB, free: 154.4 MB / 0.698 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002333/1.012, allocations: 0.9731 MB / 1.057 GB, free: 154.3 MB / 0.698 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.888e-06/1.012, allocations: 9.672 kB / 1.057 GB, free: 154.3 MB / 0.698 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.759e-06/1.012, allocations: 1.734 kB / 1.057 GB, free: 154.3 MB / 0.698 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.237e-05/1.012, allocations: 4.172 kB / 1.057 GB, free: 154.3 MB / 0.698 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0008988/1.013, allocations: 0.8169 MB / 1.057 GB, free: 154.1 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.428e-06/1.013, allocations: 0 / 1.057 GB, free: 154.1 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005318/1.013, allocations: 145.9 kB / 1.058 GB, free: 154.1 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005366/1.014, allocations: 80.58 kB / 1.058 GB, free: 154.1 MB / 0.698 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.472e-05/1.014, allocations: 20.89 kB / 1.058 GB, free: 154.1 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001606/1.015, allocations: 1.552 MB / 1.059 GB, free: 152.8 MB / 0.698 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.826e-06/1.015, allocations: 3.953 kB / 1.059 GB, free: 152.8 MB / 0.698 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001602/1.017, allocations: 0.8211 MB / 1.06 GB, free: 152.7 MB / 0.698 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003623/1.017, allocations: 268.2 kB / 1.06 GB, free: 152.5 MB / 0.698 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.041e-05/1.017, allocations: 13.58 kB / 1.06 GB, free: 152.5 MB / 0.698 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005364/1.018, allocations: 72.81 kB / 1.06 GB, free: 152.5 MB / 0.698 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001119/1.018, allocations: 59.62 kB / 1.06 GB, free: 152.5 MB / 0.698 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.843e-05/1.018, allocations: 27.73 kB / 1.06 GB, free: 152.5 MB / 0.698 GB Notification: Performance of sorting global known variables: time 0.0005082/1.019, allocations: 418.4 kB / 1.061 GB, free: 152.4 MB / 0.698 GB Notification: Performance of sort global known variables: time 1.392e-06/1.019, allocations: 3.906 kB / 1.061 GB, free: 152.4 MB / 0.698 GB Notification: Performance of remove unused functions: time 0.0007997/1.019, allocations: 261.7 kB / 1.061 GB, free: 152.4 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 (82): * Single equations (assignments): 79 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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: 0 * Non-linear torn systems: 1 {1 3} Notification: Performance of Backend phase and start with SimCode phase: time 0.003374/1.023, allocations: 1.826 MB / 1.063 GB, free: 151.7 MB / 0.698 GB Notification: Performance of simCode: created initialization part: time 0.001736/1.025, allocations: 0.7111 MB / 1.064 GB, free: 151.5 MB / 0.698 GB Notification: Performance of simCode: created event and clocks part: time 4.027e-06/1.025, allocations: 2.656 kB / 1.064 GB, free: 151.5 MB / 0.698 GB Notification: Performance of simCode: created simulation system equations: time 0.0008367/1.025, allocations: 485.1 kB / 1.064 GB, free: 151.4 MB / 0.698 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001228/1.027, allocations: 244.9 kB / 1.064 GB, free: 151.4 MB / 0.698 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01086/1.038, allocations: 4.558 MB / 1.069 GB, free: 150 MB / 0.698 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008225/1.038, allocations: 0.9892 MB / 1.07 GB, free: 149.2 MB / 0.698 GB Notification: Performance of simCode: alias equations: time 0.001087/1.04, allocations: 245.3 kB / 1.07 GB, free: 149.2 MB / 0.698 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000548/1.04, allocations: 343 kB / 1.07 GB, free: 149.2 MB / 0.698 GB Notification: Performance of SimCode: time 1.162e-06/1.04, allocations: 0 / 1.07 GB, free: 149.2 MB / 0.698 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04725/1.087, allocations: 19.12 MB / 1.089 GB, free: 140 MB / 0.698 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001844/1.088, allocations: 311.7 kB / 1.089 GB, free: 139.6 MB / 0.698 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.847/3.934, allocations: 0 / 1.089 GB, free: 139.6 MB / 0.698 GB (rm -f Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.DiffuseIsotropic.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.DiffuseIsotropic.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.DiffuseIsotropic.pipe >> ../files/Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.DiffuseIsotropic.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_7_0_x_Buildings_BoundaryConditions_SolarIrradiation_BaseClasses_Examples_DiffuseIsotropic_fmu --startTime=0 --stopTime=8.64e+06 --timeout=50 --tolerance=1e-06 Buildings_maint_7_0_x_Buildings_BoundaryConditions_SolarIrradiation_BaseClasses_Examples_DiffuseIsotropic.fmu > Buildings_maint.7.0.x_Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.DiffuseIsotropic.pipe 2>&1)