Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y.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/BuildSysPro 3.6.0/package.mo", uses=false) Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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(BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y") translateModel(BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009281/0.0009284, allocations: 99.11 kB / 16.02 MB, free: 76 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00118/0.00118, allocations: 180.9 kB / 16.92 MB, free: 6.918 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.367/1.367, allocations: 223.3 MB / 241 MB, free: 5.34 MB / 190.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/package.mo): time 1.007/1.007, allocations: 143.2 MB / 435.3 MB, free: 13.66 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0002944/0.0002945, allocations: 12 kB / 0.517 GB, free: 11.12 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1763/0.1766, allocations: 83.41 MB / 0.5985 GB, free: 7.691 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y): time 1.033/1.209, allocations: 319.1 MB / 0.9101 GB, free: 37.07 MB / 0.67 GB Notification: Performance of NFInst.instExpressions: time 0.03468/1.244, allocations: 22.32 MB / 0.9319 GB, free: 36.67 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004764/1.249, allocations: 78.69 kB / 0.932 GB, free: 36.67 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.0196/1.268, allocations: 10.93 MB / 0.9426 GB, free: 36.46 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.01274/1.281, allocations: 4.154 MB / 0.9467 GB, free: 35.76 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.00645/1.288, allocations: 2.142 MB / 0.9488 GB, free: 35.34 MB / 0.67 GB [/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/NFFrontEnd/NFCeval.mo:1080:9-1080:67:writable] Error: Internal error NFCeval.evalBinaryMul failed to evaluate ‘{0.0, 0.8333333333333334, 1.666666666666667}[pressure.n] * 0.0‘ Notification: Performance of NFFlatten.flatten: time 0.02453/1.312, allocations: 20.1 MB / 0.9684 GB, free: 28.73 MB / 0.67 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003555/1.316, allocations: 1.897 MB / 0.9703 GB, free: 27.28 MB / 0.67 GB Notification: Performance of NFEvalConstants.evaluate: time 0.007261/1.323, allocations: 2.79 MB / 0.973 GB, free: 25.53 MB / 0.67 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004867/1.328, allocations: 2.013 MB / 0.975 GB, free: 24.09 MB / 0.67 GB Notification: Performance of NFPackage.collectConstants: time 0.0009502/1.329, allocations: 110 kB / 0.9751 GB, free: 23.99 MB / 0.67 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01014/1.339, allocations: 4.507 MB / 0.9795 GB, free: 20.22 MB / 0.67 GB Notification: Performance of NFScalarize.scalarize: time 0.001786/1.341, allocations: 1.08 MB / 0.9805 GB, free: 19.29 MB / 0.67 GB Notification: Performance of NFVerifyModel.verify: time 0.003208/1.344, allocations: 1.599 MB / 0.9821 GB, free: 17.86 MB / 0.67 GB Notification: Performance of NFConvertDAE.convert: time 0.006866/1.351, allocations: 4.858 MB / 0.9868 GB, free: 13.2 MB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 6.592e-06/1.351, allocations: 10.52 kB / 0.9868 GB, free: 13.2 MB / 0.67 GB Notification: Performance of FrontEnd: time 1.863e-06/1.351, allocations: 0 / 0.9868 GB, free: 13.2 MB / 0.67 GB Notification: Performance of Transformations before backend: time 0.000113/1.351, allocations: 0 / 0.9868 GB, free: 13.2 MB / 0.67 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 357 * Number of variables: 357 Notification: Performance of Generate backend data structure: time 0.005749/1.357, allocations: 3.293 MB / 0.99 GB, free: 9.867 MB / 0.67 GB Notification: Performance of prepare preOptimizeDAE: time 5.061e-05/1.357, allocations: 16.03 kB / 0.9901 GB, free: 9.852 MB / 0.67 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.007449/1.365, allocations: 1.278 MB / 0.9913 GB, free: 8.57 MB / 0.67 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006642/1.371, allocations: 3.605 MB / 0.9948 GB, free: 5.031 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000174/1.371, allocations: 119.2 kB / 0.9949 GB, free: 4.914 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005299/1.372, allocations: 158.5 kB / 0.9951 GB, free: 4.762 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004677/1.377, allocations: 2.12 MB / 0.9972 GB, free: 2.59 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.002e-05/1.377, allocations: 10.52 kB / 0.9972 GB, free: 2.582 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001754/1.377, allocations: 62.98 kB / 0.9972 GB, free: 2.523 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.532e-05/1.377, allocations: 62.72 kB / 0.9973 GB, free: 2.461 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004548/1.382, allocations: 1.861 MB / 0.9991 GB, free: 0.6016 MB / 0.67 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 0.01655/1.398, allocations: 9.229 MB / 1.008 GB, free: 6.938 MB / 0.6856 GB Notification: Performance of preOpt comSubExp (simulation): time 0.005428/1.404, allocations: 1.598 MB / 1.01 GB, free: 5.34 MB / 0.6856 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002241/1.406, allocations: 0.8184 MB / 1.01 GB, free: 4.523 MB / 0.6856 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002527/1.406, allocations: 115.6 kB / 1.011 GB, free: 4.398 MB / 0.6856 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.479e-05/1.406, allocations: 43.56 kB / 1.011 GB, free: 4.348 MB / 0.6856 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001423/1.408, allocations: 166.7 kB / 1.011 GB, free: 4.184 MB / 0.6856 GB Notification: Performance of pre-optimization done (n=85): time 5.56e-06/1.408, allocations: 0 / 1.011 GB, free: 4.184 MB / 0.6856 GB Notification: Performance of matching and sorting (n=85): time 0.008675/1.416, allocations: 2.701 MB / 1.013 GB, free: 1.43 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.661e-05/1.416, allocations: 64.41 kB / 1.013 GB, free: 1.355 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006449/1.423, allocations: 3.008 MB / 1.016 GB, free: 14.34 MB / 0.7012 GB Notification: Performance of collectPreVariables (initialization): time 0.0003142/1.423, allocations: 49.64 kB / 1.016 GB, free: 14.29 MB / 0.7012 GB Notification: Performance of collectInitialEqns (initialization): time 0.001376/1.425, allocations: 1.278 MB / 1.018 GB, free: 13.02 MB / 0.7012 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004657/1.425, allocations: 313.5 kB / 1.018 GB, free: 12.71 MB / 0.7012 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004488/1.426, allocations: 225.8 kB / 1.018 GB, free: 12.49 MB / 0.7012 GB Notification: Performance of setup shared object (initialization): time 0.0001043/1.426, allocations: 305.1 kB / 1.019 GB, free: 12.19 MB / 0.7012 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003036/1.429, allocations: 1.429 MB / 1.02 GB, free: 10.76 MB / 0.7012 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003425/1.432, allocations: 1.938 MB / 1.022 GB, free: 8.629 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005964/1.438, allocations: 3.119 MB / 1.025 GB, free: 5.422 MB / 0.7012 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.156e-05/1.438, allocations: 6.531 kB / 1.025 GB, free: 5.418 MB / 0.7012 GB Notification: Performance of matching and sorting (n=267) (initialization): time 0.008454/1.447, allocations: 3.845 MB / 1.029 GB, free: 1.609 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003542/1.447, allocations: 388.8 kB / 1.029 GB, free: 1.098 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.033e-05/1.447, allocations: 12 kB / 1.029 GB, free: 1.086 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001128/1.448, allocations: 341 kB / 1.029 GB, free: 0.7539 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001984/1.45, allocations: 437.7 kB / 1.03 GB, free: 356 kB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001682/1.452, allocations: 1.932 MB / 1.032 GB, free: 14.35 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003073/1.455, allocations: 240.5 kB / 1.032 GB, free: 14.12 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003129/1.455, allocations: 111 kB / 1.032 GB, free: 14.02 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 1.41e-05/1.455, allocations: 8 kB / 1.032 GB, free: 14.01 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.00662/1.462, allocations: 3.12 MB / 1.035 GB, free: 10.95 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.573e-05/1.462, allocations: 12 kB / 1.035 GB, free: 10.94 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001404/1.463, allocations: 389.8 kB / 1.035 GB, free: 10.55 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001647/1.465, allocations: 383.9 kB / 1.036 GB, free: 10.2 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005813/1.471, allocations: 3.93 MB / 1.04 GB, free: 6.07 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002807/1.474, allocations: 226.8 kB / 1.04 GB, free: 5.848 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003424/1.474, allocations: 83.98 kB / 1.04 GB, free: 5.766 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 43 * 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 (188): * Single equations (assignments): 181 * Array equations: 2 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * 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): 1 system {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 {(1,7), (1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.001969/1.476, allocations: 0.834 MB / 1.041 GB, free: 4.945 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007694/1.477, allocations: 276.5 kB / 1.041 GB, free: 4.672 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.005732/1.483, allocations: 1.958 MB / 1.043 GB, free: 2.703 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.014e-05/1.483, allocations: 11.94 kB / 1.043 GB, free: 2.691 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.929e-06/1.483, allocations: 0 / 1.043 GB, free: 2.691 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.004362/1.487, allocations: 1.672 MB / 1.045 GB, free: 0.9961 MB / 0.7169 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 postOpt removeSimpleEquations (simulation): time 0.01054/1.498, allocations: 4.232 MB / 1.049 GB, free: 12.7 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.078e-05/1.498, allocations: 7.984 kB / 1.049 GB, free: 12.69 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001457/1.499, allocations: 254 kB / 1.049 GB, free: 12.45 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006372/1.5, allocations: 203.5 kB / 1.049 GB, free: 12.25 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001021/1.5, allocations: 35.97 kB / 1.049 GB, free: 12.21 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001373/1.501, allocations: 1.877 MB / 1.051 GB, free: 10.26 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.639e-06/1.501, allocations: 3.062 kB / 1.051 GB, free: 10.26 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007319/1.509, allocations: 2.847 MB / 1.054 GB, free: 7.383 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001564/1.51, allocations: 497.2 kB / 1.054 GB, free: 6.875 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007181/1.511, allocations: 20 kB / 1.054 GB, free: 6.855 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002262/1.513, allocations: 190.9 kB / 1.054 GB, free: 6.672 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001579/1.513, allocations: 60.92 kB / 1.055 GB, free: 6.613 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000126/1.514, allocations: 47.97 kB / 1.055 GB, free: 6.566 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.004277/1.518, allocations: 2.018 MB / 1.057 GB, free: 4.559 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.893e-06/1.518, allocations: 0 / 1.057 GB, free: 4.559 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.005317/1.523, allocations: 1.462 MB / 1.058 GB, free: 3.09 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 3 (floMacDyn.vol.dynBal.medium.Xi[1],floMacDyn.vol.dynBal.U,floMacDyn.vol.dynBal.m) * 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 (77): * Single equations (assignments): 74 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * 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): 1 system {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 {(1,5), (2,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.00185/1.525, allocations: 0.634 MB / 1.059 GB, free: 2.504 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.009757/1.535, allocations: 4.309 MB / 1.063 GB, free: 14.26 MB / 0.7481 GB Notification: Performance of simCode: created event and clocks part: time 8.195e-06/1.535, allocations: 0 / 1.063 GB, free: 14.26 MB / 0.7481 GB Notification: Performance of simCode: created simulation system equations: time 0.002383/1.537, allocations: 0.7935 MB / 1.064 GB, free: 13.48 MB / 0.7481 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.008567/1.546, allocations: 1.418 MB / 1.065 GB, free: 12.09 MB / 0.7481 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01231/1.558, allocations: 6.27 MB / 1.071 GB, free: 5.781 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002315/1.561, allocations: 1.954 MB / 1.073 GB, free: 3.793 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001086/1.562, allocations: 215.3 kB / 1.073 GB, free: 3.582 MB / 0.7481 GB Notification: Performance of SimCode: time 1.062e-06/1.562, allocations: 0 / 1.073 GB, free: 3.582 MB / 0.7481 GB Notification: Performance of Templates: time 0.4096/1.971, allocations: 87.97 MB / 1.159 GB, free: 351.6 MB / 0.8262 GB make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y.makefile (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.Movers.Validation.SpeedControlled_y.pipe 2>&1)