Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods.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/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/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: translateModel(BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods") translateModel(BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001662/0.001662, allocations: 103.4 kB / 15.34 MB, free: 0.5039 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001445/0.001446, allocations: 195.9 kB / 16.25 MB, free: 6.633 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.464/1.464, allocations: 222.9 MB / 239.9 MB, free: 4.492 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002532/0.002532, allocations: 282.9 kB / 290.3 MB, free: 2.102 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 1.062/1.062, allocations: 178.6 MB / 0.507 GB, free: 4.734 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002758/0.002759, allocations: 102.1 kB / 0.6059 GB, free: 25.2 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1768/0.1796, allocations: 89.14 MB / 0.693 GB, free: 4.703 MB / 494.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods): time 0.006678/0.1863, allocations: 4.876 MB / 0.6977 GB, free: 15.81 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.01097/0.1973, allocations: 5.614 MB / 0.7032 GB, free: 10.18 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001269/0.1986, allocations: 23.88 kB / 0.7032 GB, free: 10.16 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.01922/0.2179, allocations: 11.51 MB / 0.7145 GB, free: 14.64 MB / 0.5137 GB Notification: Performance of NFTyping.typeBindings: time 0.004112/0.222, allocations: 1.138 MB / 0.7156 GB, free: 13.5 MB / 0.5137 GB Notification: Performance of NFTyping.typeClassSections: time 0.003715/0.2258, allocations: 1.423 MB / 0.717 GB, free: 12.07 MB / 0.5137 GB [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/NFFrontEnd/NFCeval.mo:1089:9-1089:67:writable] Error: Internal error NFCeval.evalBinaryMul failed to evaluate ‘{0.0, 1.0}[pressure.n] * 0.0‘ Notification: Performance of NFFlatten.flatten: time 0.0232/0.249, allocations: 15.43 MB / 0.7321 GB, free: 12.62 MB / 0.5294 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0005004/0.2495, allocations: 164.4 kB / 0.7322 GB, free: 12.45 MB / 0.5294 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001443/0.2509, allocations: 0.7901 MB / 0.733 GB, free: 11.65 MB / 0.5294 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00111/0.2521, allocations: 0.8558 MB / 0.7338 GB, free: 10.79 MB / 0.5294 GB Notification: Performance of NFPackage.collectConstants: time 0.0001557/0.2522, allocations: 84 kB / 0.7339 GB, free: 10.71 MB / 0.5294 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001784/0.254, allocations: 0.8774 MB / 0.7348 GB, free: 9.832 MB / 0.5294 GB Notification: Performance of NFScalarize.scalarize: time 0.0008859/0.2549, allocations: 0.9193 MB / 0.7356 GB, free: 8.91 MB / 0.5294 GB Notification: Performance of NFVerifyModel.verify: time 0.001057/0.256, allocations: 1.017 MB / 0.7366 GB, free: 7.887 MB / 0.5294 GB Notification: Performance of NFConvertDAE.convert: time 0.003555/0.2596, allocations: 2.955 MB / 0.7395 GB, free: 4.922 MB / 0.5294 GB Notification: Performance of FrontEnd - DAE generated: time 6.051e-06/0.2596, allocations: 0 / 0.7395 GB, free: 4.922 MB / 0.5294 GB Notification: Performance of FrontEnd: time 1.382e-06/0.2596, allocations: 0 / 0.7395 GB, free: 4.922 MB / 0.5294 GB Notification: Performance of Transformations before backend: time 3.638e-05/0.2596, allocations: 0 / 0.7395 GB, free: 4.922 MB / 0.5294 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 75 * Number of variables: 75 Notification: Performance of Generate backend data structure: time 0.004831/0.2645, allocations: 2.63 MB / 0.7421 GB, free: 2.223 MB / 0.5294 GB Notification: Performance of prepare preOptimizeDAE: time 4.475e-05/0.2645, allocations: 8.031 kB / 0.7421 GB, free: 2.215 MB / 0.5294 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003242/0.2678, allocations: 0.5941 MB / 0.7427 GB, free: 1.617 MB / 0.5294 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005282/0.2731, allocations: 2.899 MB / 0.7455 GB, free: 14.66 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001299/0.2732, allocations: 48.95 kB / 0.7456 GB, free: 14.61 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001195/0.2734, allocations: 48 kB / 0.7456 GB, free: 14.56 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001704/0.2751, allocations: 0.6734 MB / 0.7463 GB, free: 13.88 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.751e-05/0.2751, allocations: 4 kB / 0.7463 GB, free: 13.88 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.048e-05/0.2752, allocations: 12 kB / 0.7463 GB, free: 13.86 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.094e-05/0.2752, allocations: 11.94 kB / 0.7463 GB, free: 13.85 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001974/0.2772, allocations: 0.6115 MB / 0.7469 GB, free: 13.24 MB / 0.545 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005341/0.2825, allocations: 2.639 MB / 0.7495 GB, free: 10.53 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002232/0.2848, allocations: 0.7497 MB / 0.7502 GB, free: 9.773 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009312/0.2857, allocations: 297.2 kB / 0.7505 GB, free: 9.48 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 5.242e-05/0.2858, allocations: 20.2 kB / 0.7505 GB, free: 9.461 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.483e-05/0.2858, allocations: 30.84 kB / 0.7505 GB, free: 9.422 MB / 0.545 GB Notification: Performance of pre-optimization done (n=33): time 2.104e-06/0.2858, allocations: 0 / 0.7505 GB, free: 9.422 MB / 0.545 GB Notification: Performance of matching and sorting (n=33): time 0.003413/0.2892, allocations: 1.132 MB / 0.7516 GB, free: 8.281 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.034e-05/0.2893, allocations: 51.41 kB / 0.7517 GB, free: 8.219 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004359/0.2937, allocations: 3.124 MB / 0.7547 GB, free: 5.078 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 0.0001485/0.2938, allocations: 45.64 kB / 0.7548 GB, free: 5.027 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008322/0.2947, allocations: 0.8101 MB / 0.7556 GB, free: 4.211 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001615/0.2948, allocations: 130.4 kB / 0.7557 GB, free: 4.082 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0007718/0.2956, allocations: 0.5714 MB / 0.7563 GB, free: 3.508 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0001316/0.2957, allocations: 305.1 kB / 0.7565 GB, free: 3.207 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002241/0.298, allocations: 1.24 MB / 0.7578 GB, free: 1.961 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002717/0.3007, allocations: 1.702 MB / 0.7594 GB, free: 108 kB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.3001/0.6008, allocations: 2.581 MB / 0.7619 GB, free: 65.32 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.104e-05/0.6009, allocations: 4.375 kB / 0.7619 GB, free: 65.32 MB / 0.545 GB Notification: Performance of matching and sorting (n=339) (initialization): time 0.005318/0.6062, allocations: 3.273 MB / 0.7651 GB, free: 64.34 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 2.598e-05/0.6062, allocations: 11.84 kB / 0.7652 GB, free: 64.34 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.907e-05/0.6063, allocations: 9.125 kB / 0.7652 GB, free: 64.34 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.166e-05/0.6063, allocations: 17.25 kB / 0.7652 GB, free: 64.34 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001484/0.6078, allocations: 407.2 kB / 0.7656 GB, free: 64.3 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.589e-05/0.6078, allocations: 22 kB / 0.7656 GB, free: 64.3 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001802/0.6096, allocations: 309.7 kB / 0.7659 GB, free: 64.25 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001646/0.6098, allocations: 103.2 kB / 0.766 GB, free: 64.23 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002766/0.6126, allocations: 1.711 MB / 0.7677 GB, free: 63.61 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002136/0.6147, allocations: 1.631 MB / 0.7692 GB, free: 62.77 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.003216/0.618, allocations: 2.437 MB / 0.7716 GB, free: 61.72 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.718e-06/0.618, allocations: 2.469 kB / 0.7716 GB, free: 61.72 MB / 0.545 GB Notification: Performance of matching and sorting (n=339) (initialization_lambda0): time 0.004557/0.6225, allocations: 3.108 MB / 0.7747 GB, free: 60.65 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 1.871e-05/0.6226, allocations: 11.91 kB / 0.7747 GB, free: 60.65 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.37e-05/0.6226, allocations: 8.938 kB / 0.7747 GB, free: 60.65 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.761e-05/0.6226, allocations: 17.22 kB / 0.7747 GB, free: 60.65 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001382/0.624, allocations: 397.1 kB / 0.7751 GB, free: 60.61 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.505e-05/0.624, allocations: 22.14 kB / 0.7751 GB, free: 60.61 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00183/0.6259, allocations: 257 kB / 0.7753 GB, free: 60.54 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001397/0.626, allocations: 94.98 kB / 0.7754 GB, free: 60.52 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 39 * 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 (207): * Single equations (assignments): 199 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 4 * 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 0.0003837/0.6264, allocations: 264.2 kB / 0.7757 GB, free: 60.28 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002393/0.6267, allocations: 218.6 kB / 0.7759 GB, free: 60.15 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002398/0.6291, allocations: 0.8864 MB / 0.7768 GB, free: 59.88 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.03e-06/0.6291, allocations: 4.125 kB / 0.7768 GB, free: 59.88 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.671e-06/0.6291, allocations: 3.812 kB / 0.7768 GB, free: 59.88 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.242e-06/0.6291, allocations: 3.188 kB / 0.7768 GB, free: 59.88 MB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001446/0.6306, allocations: 1.227 MB / 0.778 GB, free: 59.3 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.335e-06/0.6306, allocations: 0 / 0.778 GB, free: 59.3 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006842/0.6313, allocations: 129.5 kB / 0.7781 GB, free: 59.29 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.811e-06/0.6313, allocations: 2.906 kB / 0.7781 GB, free: 59.29 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.18e-05/0.6313, allocations: 11.44 kB / 0.7781 GB, free: 59.29 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.647e-06/0.6313, allocations: 5.719 kB / 0.7781 GB, free: 59.29 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.803e-06/0.6313, allocations: 0 / 0.7781 GB, free: 59.29 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00196/0.6333, allocations: 0.9709 MB / 0.7791 GB, free: 58.87 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004994/0.6338, allocations: 384.1 kB / 0.7794 GB, free: 58.59 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002318/0.634, allocations: 8.125 kB / 0.7794 GB, free: 58.59 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000997/0.635, allocations: 95.11 kB / 0.7795 GB, free: 58.59 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.258e-05/0.6351, allocations: 26.91 kB / 0.7795 GB, free: 58.58 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.631e-05/0.6352, allocations: 22.12 kB / 0.7796 GB, free: 58.58 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.002739/0.6379, allocations: 2.047 MB / 0.7816 GB, free: 57.85 MB / 0.545 GB Notification: Performance of sort global known variables: time 1.5e-07/0.6379, allocations: 0 / 0.7816 GB, free: 57.85 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.002318/0.6403, allocations: 0.9104 MB / 0.7825 GB, free: 57.77 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * 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 (37): * Single equations (assignments): 37 * Array equations: 0 * Algorithm blocks: 0 * 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 Backend phase and start with SimCode phase: time 0.0007859/0.641, allocations: 400.1 kB / 0.7828 GB, free: 57.66 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.005781/0.6468, allocations: 3.526 MB / 0.7863 GB, free: 56.52 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 3.096e-06/0.6469, allocations: 0 / 0.7863 GB, free: 56.52 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.0008863/0.6478, allocations: 333.5 kB / 0.7866 GB, free: 56.45 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003269/0.651, allocations: 0.9377 MB / 0.7875 GB, free: 56.17 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0146/0.6656, allocations: 5.451 MB / 0.7928 GB, free: 53.96 MB / 0.545 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009428/0.6666, allocations: 1.643 MB / 0.7944 GB, free: 52.89 MB / 0.545 GB Notification: Performance of simCode: alias equations: time 0.002498/0.6691, allocations: 0.6718 MB / 0.7951 GB, free: 52.6 MB / 0.545 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004708/0.6696, allocations: 167 kB / 0.7953 GB, free: 52.57 MB / 0.545 GB Notification: Performance of SimCode: time 8.81e-07/0.6696, allocations: 0 / 0.7953 GB, free: 52.57 MB / 0.545 GB Notification: Performance of Templates: time 0.05599/0.7256, allocations: 43.57 MB / 0.8378 GB, free: 11.16 MB / 0.545 GB make -j1 -f BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods.makefile (rm -f BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods.sim & ./BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.MotorEfficiencyMethods.pipe 2>&1)