Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Movers.Examples.MoverContinuous.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 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.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: "" <> buildModelFMU(Buildings.Fluid.Movers.Examples.MoverContinuous,fileNamePrefix="Buildings_8_Buildings_Fluid_Movers_Examples_MoverContinuous",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Movers.Examples.MoverContinuous,fileNamePrefix="Buildings_8_Buildings_Fluid_Movers_Examples_MoverContinuous",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 0.00135/0.00135, allocations: 105.4 kB / 15.7 MB, free: 24 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001369/0.001369, allocations: 197.2 kB / 16.64 MB, free: 6.445 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.351/1.351, allocations: 205.1 MB / 222.5 MB, free: 4.562 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.738/1.738, allocations: 292.3 MB / 0.549 GB, free: 12.77 MB / 462.1 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 0.001452/0.001452, allocations: 75.98 kB / 0.6718 GB, free: 26.16 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2451/0.2466, allocations: 114.5 MB / 0.7836 GB, free: 13.29 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Examples.MoverContinuous): time 0.1204/0.367, allocations: 95.14 MB / 0.8765 GB, free: 13.82 MB / 0.7012 GB Notification: Performance of NFInst.instExpressions: time 0.5044/0.8715, allocations: 32.96 MB / 0.9087 GB, free: 7.59 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.006261/0.8778, allocations: 152.9 kB / 0.9089 GB, free: 7.59 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.005996/0.8838, allocations: 2.002 MB / 0.9108 GB, free: 7.59 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.01232/0.8962, allocations: 4.473 MB / 0.9152 GB, free: 7.547 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.008774/0.905, allocations: 3.573 MB / 0.9187 GB, free: 7.477 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.01418/0.9192, allocations: 8.787 MB / 0.9273 GB, free: 7.453 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007287/0.9265, allocations: 3.284 MB / 0.9305 GB, free: 7.078 MB / 0.7169 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01157/0.9381, allocations: 3.739 MB / 0.9341 GB, free: 6.902 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005999/0.9441, allocations: 2.749 MB / 0.9368 GB, free: 6.434 MB / 0.7169 GB Notification: Performance of NFPackage.collectConstants: time 0.001175/0.9453, allocations: 398.5 kB / 0.9372 GB, free: 6.43 MB / 0.7169 GB Notification: Performance of NFFlatten.collectFunctions: time 0.007004/0.9523, allocations: 2.651 MB / 0.9398 GB, free: 6.395 MB / 0.7169 GB Notification: Performance of NFScalarize.scalarize: time 0.001759/0.9541, allocations: 1.605 MB / 0.9413 GB, free: 6.207 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.004533/0.9586, allocations: 2.561 MB / 0.9438 GB, free: 5.457 MB / 0.7169 GB Notification: Performance of NFConvertDAE.convert: time 0.01237/0.971, allocations: 7.793 MB / 0.9515 GB, free: 4.383 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 5.5e-06/0.9711, allocations: 0 / 0.9515 GB, free: 4.383 MB / 0.7169 GB Notification: Performance of FrontEnd: time 2.264e-06/0.9711, allocations: 2.125 kB / 0.9515 GB, free: 4.383 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 0.0002159/0.9713, allocations: 0 / 0.9515 GB, free: 4.383 MB / 0.7169 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 489 * Number of variables: 489 Notification: Performance of Generate backend data structure: time 0.01424/0.9855, allocations: 5.688 MB / 0.957 GB, free: 1.828 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 4.77e-05/0.9856, allocations: 8.5 kB / 0.957 GB, free: 1.828 MB / 0.7169 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003671/0.986, allocations: 273.7 kB / 0.9573 GB, free: 1.777 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006023/0.992, allocations: 1.216 MB / 0.9585 GB, free: 1.457 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01271/1.005, allocations: 6.836 MB / 0.9651 GB, free: 15.65 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002323/1.005, allocations: 176.2 kB / 0.9653 GB, free: 15.57 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006287/1.006, allocations: 219.5 kB / 0.9655 GB, free: 15.5 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00539/1.011, allocations: 2.913 MB / 0.9684 GB, free: 13.78 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.415e-05/1.011, allocations: 5.562 kB / 0.9684 GB, free: 13.78 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001979/1.011, allocations: 77.28 kB / 0.9684 GB, free: 13.72 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.269e-05/1.011, allocations: 46.53 kB / 0.9685 GB, free: 13.72 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004932/1.016, allocations: 2.155 MB / 0.9706 GB, free: 12.71 MB / 0.7325 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 0.01989/1.036, allocations: 12.86 MB / 0.9831 GB, free: 2.539 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004131/1.04, allocations: 1.649 MB / 0.9848 GB, free: 1.754 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001697/1.042, allocations: 0.7595 MB / 0.9855 GB, free: 1.391 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.007304/1.049, allocations: 4.476 MB / 0.9899 GB, free: 13.57 MB / 0.7481 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.574e-05/1.049, allocations: 41.78 kB / 0.9899 GB, free: 13.53 MB / 0.7481 GB Notification: Performance of pre-optimization done (n=79): time 2.404e-06/1.049, allocations: 0 / 0.9899 GB, free: 13.53 MB / 0.7481 GB Notification: Performance of matching and sorting (n=79): time 0.006466/1.056, allocations: 2.524 MB / 0.9924 GB, free: 12.32 MB / 0.7481 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.812e-05/1.056, allocations: 65.56 kB / 0.9924 GB, free: 12.26 MB / 0.7481 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01506/1.071, allocations: 6.929 MB / 0.9992 GB, free: 6.461 MB / 0.7481 GB Notification: Performance of collectPreVariables (initialization): time 0.0007888/1.072, allocations: 57.36 kB / 0.9993 GB, free: 6.402 MB / 0.7481 GB Notification: Performance of collectInitialEqns (initialization): time 0.003109/1.075, allocations: 2.048 MB / 1.001 GB, free: 4.352 MB / 0.7481 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007702/1.076, allocations: 277 kB / 1.002 GB, free: 4.082 MB / 0.7481 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001901/1.078, allocations: 487.9 kB / 1.002 GB, free: 3.602 MB / 0.7481 GB Notification: Performance of setup shared object (initialization): time 0.000116/1.078, allocations: 305.1 kB / 1.002 GB, free: 3.301 MB / 0.7481 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00321/1.081, allocations: 1.559 MB / 1.004 GB, free: 1.738 MB / 0.7481 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003988/1.085, allocations: 2.472 MB / 1.006 GB, free: 14.85 MB / 0.7637 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.006543/1.092, allocations: 3.963 MB / 1.01 GB, free: 10.62 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.58e-05/1.092, allocations: 8 kB / 1.01 GB, free: 10.61 MB / 0.7637 GB Notification: Performance of matching and sorting (n=247) (initialization): time 0.008759/1.101, allocations: 4.326 MB / 1.014 GB, free: 6.457 MB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 3.87e-05/1.101, allocations: 16 kB / 1.014 GB, free: 6.441 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.58e-05/1.101, allocations: 31.98 kB / 1.014 GB, free: 6.41 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.92e-05/1.101, allocations: 36 kB / 1.014 GB, free: 6.375 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003202/1.104, allocations: 0.5745 MB / 1.015 GB, free: 5.832 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002421/1.106, allocations: 2.991 MB / 1.018 GB, free: 2.766 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003495/1.11, allocations: 310.8 kB / 1.018 GB, free: 2.461 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003064/1.11, allocations: 174.4 kB / 1.018 GB, free: 2.293 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.004124/1.114, allocations: 2.182 MB / 1.02 GB, free: 112 kB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.00285/1.117, allocations: 2.189 MB / 1.023 GB, free: 13.51 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.004801/1.122, allocations: 3.382 MB / 1.026 GB, free: 9.863 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.251e-05/1.122, allocations: 8 kB / 1.026 GB, free: 9.855 MB / 0.7794 GB Notification: Performance of matching and sorting (n=247) (initialization_lambda0): time 0.007196/1.129, allocations: 3.725 MB / 1.03 GB, free: 6.305 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 2.931e-05/1.129, allocations: 16 kB / 1.03 GB, free: 6.289 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.331e-05/1.129, allocations: 36.03 kB / 1.03 GB, free: 6.254 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.95e-05/1.129, allocations: 40 kB / 1.03 GB, free: 6.215 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002532/1.132, allocations: 0.6028 MB / 1.03 GB, free: 5.641 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.72e-05/1.132, allocations: 53.58 kB / 1.03 GB, free: 5.602 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003445/1.135, allocations: 227 kB / 1.031 GB, free: 5.379 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003268/1.136, allocations: 172 kB / 1.031 GB, free: 5.211 MB / 0.7794 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 126 * 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 (216): * Single equations (assignments): 208 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 4 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 4 systems {1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0007063/1.137, allocations: 317.2 kB / 1.031 GB, free: 4.926 MB / 0.7794 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001498/1.138, allocations: 410.6 kB / 1.031 GB, free: 4.52 MB / 0.7794 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006582/1.145, allocations: 2.501 MB / 1.034 GB, free: 2.047 MB / 0.7794 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.401e-05/1.145, allocations: 8 kB / 1.034 GB, free: 2.039 MB / 0.7794 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.897e-06/1.145, allocations: 4 kB / 1.034 GB, free: 2.035 MB / 0.7794 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.464e-05/1.145, allocations: 7.969 kB / 1.034 GB, free: 2.027 MB / 0.7794 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01382/1.159, allocations: 5.065 MB / 1.039 GB, free: 12.94 MB / 0.795 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.09e-05/1.159, allocations: 4 kB / 1.039 GB, free: 12.93 MB / 0.795 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0014/1.16, allocations: 274.8 kB / 1.039 GB, free: 12.68 MB / 0.795 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003914/1.16, allocations: 145.7 kB / 1.039 GB, free: 12.53 MB / 0.795 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001173/1.161, allocations: 39.95 kB / 1.039 GB, free: 12.49 MB / 0.795 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001811/1.162, allocations: 2.67 MB / 1.042 GB, free: 9.73 MB / 0.795 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.307e-06/1.162, allocations: 3.188 kB / 1.042 GB, free: 9.73 MB / 0.795 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005625/1.168, allocations: 2.311 MB / 1.044 GB, free: 7.41 MB / 0.795 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002298/1.17, allocations: 0.7177 MB / 1.045 GB, free: 6.668 MB / 0.795 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001392/1.172, allocations: 19.98 kB / 1.045 GB, free: 6.648 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002973/1.175, allocations: 111.9 kB / 1.045 GB, free: 6.539 MB / 0.795 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001636/1.175, allocations: 64.91 kB / 1.045 GB, free: 6.477 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001891/1.175, allocations: 67.94 kB / 1.045 GB, free: 6.41 MB / 0.795 GB Notification: Performance of sorting global known variables: time 0.009406/1.184, allocations: 4.992 MB / 1.05 GB, free: 1.434 MB / 0.795 GB Notification: Performance of sort global known variables: time 8.21e-07/1.185, allocations: 0 / 1.05 GB, free: 1.434 MB / 0.795 GB Notification: Performance of remove unused functions: time 0.008604/1.193, allocations: 1.722 MB / 1.052 GB, free: 15.71 MB / 0.8106 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * 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 simulation (102): * Single equations (assignments): 88 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems 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): 2 systems {(1,1), (1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.008249/1.201, allocations: 3.423 MB / 1.055 GB, free: 12.32 MB / 0.8106 GB Notification: Performance of simCode: created initialization part: time 0.01115/1.213, allocations: 4.859 MB / 1.06 GB, free: 7.66 MB / 0.8106 GB Notification: Performance of simCode: created event and clocks part: time 8.475e-06/1.213, allocations: 0 / 1.06 GB, free: 7.66 MB / 0.8106 GB Notification: Performance of simCode: created simulation system equations: time 0.002528/1.215, allocations: 0.9454 MB / 1.061 GB, free: 6.742 MB / 0.8106 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01159/1.227, allocations: 2.262 MB / 1.063 GB, free: 4.512 MB / 0.8106 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.07624/1.303, allocations: 38.93 MB / 1.101 GB, free: 12.73 MB / 0.8575 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003644/1.307, allocations: 2.507 MB / 1.103 GB, free: 10.19 MB / 0.8575 GB Notification: Performance of simCode: alias equations: time 0.005271/1.312, allocations: 1.086 MB / 1.104 GB, free: 9.098 MB / 0.8575 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003249/1.315, allocations: 1.843 MB / 1.106 GB, free: 7.254 MB / 0.8575 GB Notification: Performance of SimCode: time 1.483e-06/1.315, allocations: 0 / 1.106 GB, free: 7.254 MB / 0.8575 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.2017/1.517, allocations: 119.3 MB / 1.223 GB, free: 1.297 MB / 0.9669 GB Notification: Performance of buildModelFMU: Generate platform static: time 20.64/22.16, allocations: 8.984 kB / 1.223 GB, free: 1.289 MB / 0.9669 GB (rm -f Buildings_8_Buildings.Fluid.Movers.Examples.MoverContinuous.pipe ; mkfifo Buildings_8_Buildings.Fluid.Movers.Examples.MoverContinuous.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Movers.Examples.MoverContinuous.pipe >> ../files/Buildings_8_Buildings.Fluid.Movers.Examples.MoverContinuous.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Fluid_Movers_Examples_MoverContinuous_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Fluid_Movers_Examples_MoverContinuous.fmu > Buildings_8_Buildings.Fluid.Movers.Examples.MoverContinuous.pipe 2>&1)