Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.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/IDEAS 3.0.0-master/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-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: "" <> buildModelFMU(IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Movers_Examples_SpeedControlled_y_pumpCurves",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Movers_Examples_SpeedControlled_y_pumpCurves",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 0.001141/0.001141, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001214/0.001214, allocations: 194.7 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.35/1.35, allocations: 222.9 MB / 240.2 MB, free: 4.387 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 1.01/1.01, allocations: 135.1 MB / 425.5 MB, free: 11.87 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001472/0.001472, allocations: 67.98 kB / 0.5054 GB, free: 5.219 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1783/0.1798, allocations: 80.92 MB / 0.5845 GB, free: 4.465 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves): time 0.4276/0.6075, allocations: 104.9 MB / 0.687 GB, free: 1.562 MB / 0.5137 GB Notification: Performance of NFInst.instExpressions: time 0.0477/0.6552, allocations: 32.91 MB / 0.7191 GB, free: 10.01 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.006826/0.662, allocations: 156.2 kB / 0.7192 GB, free: 9.957 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.006381/0.6685, allocations: 2.013 MB / 0.7212 GB, free: 8.742 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.01925/0.6878, allocations: 5.008 MB / 0.7261 GB, free: 5.516 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.01306/0.7009, allocations: 3.872 MB / 0.7299 GB, free: 2.621 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.01539/0.7163, allocations: 9.517 MB / 0.7392 GB, free: 13.16 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.005992/0.7223, allocations: 3.536 MB / 0.7426 GB, free: 10.83 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0102/0.7326, allocations: 3.992 MB / 0.7465 GB, free: 7.027 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00592/0.7385, allocations: 3.042 MB / 0.7495 GB, free: 3.973 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.00133/0.7398, allocations: 412 kB / 0.7499 GB, free: 3.57 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006955/0.7468, allocations: 2.625 MB / 0.7525 GB, free: 0.9414 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.001822/0.7487, allocations: 1.324 MB / 0.7537 GB, free: 15.61 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.003823/0.7525, allocations: 2.359 MB / 0.756 GB, free: 13.24 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.01224/0.7648, allocations: 7.353 MB / 0.7632 GB, free: 5.867 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 6.212e-06/0.7648, allocations: 0 / 0.7632 GB, free: 5.867 MB / 0.5762 GB Notification: Performance of FrontEnd: time 2.064e-06/0.7648, allocations: 0 / 0.7632 GB, free: 5.867 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 0.0001639/0.765, allocations: 0 / 0.7632 GB, free: 5.867 MB / 0.5762 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 529 * Number of variables: 529 Notification: Performance of Generate backend data structure: time 0.01001/0.775, allocations: 5.08 MB / 0.7682 GB, free: 0.7031 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 5.092e-05/0.7751, allocations: 8.031 kB / 0.7682 GB, free: 0.6953 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003643/0.7754, allocations: 291.6 kB / 0.7685 GB, free: 408 kB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006272/0.7817, allocations: 1.178 MB / 0.7696 GB, free: 15.21 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00934/0.7911, allocations: 4.148 MB / 0.7737 GB, free: 10.98 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000179/0.7913, allocations: 189.1 kB / 0.7739 GB, free: 10.79 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004594/0.7918, allocations: 232 kB / 0.7741 GB, free: 10.57 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005282/0.7971, allocations: 2.734 MB / 0.7767 GB, free: 7.699 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.486e-05/0.7971, allocations: 0 / 0.7767 GB, free: 7.699 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002153/0.7973, allocations: 88 kB / 0.7768 GB, free: 7.613 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.868e-05/0.7974, allocations: 59.88 kB / 0.7769 GB, free: 7.555 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004614/0.802, allocations: 1.959 MB / 0.7788 GB, free: 5.594 MB / 0.5919 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 0.02093/0.823, allocations: 12.72 MB / 0.7912 GB, free: 8.008 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003768/0.8268, allocations: 1.508 MB / 0.7927 GB, free: 6.488 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001742/0.8285, allocations: 0.7218 MB / 0.7934 GB, free: 5.762 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 0.007249/0.8358, allocations: 3.986 MB / 0.7973 GB, free: 1.453 MB / 0.6075 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.636e-05/0.8359, allocations: 51.55 kB / 0.7973 GB, free: 1.395 MB / 0.6075 GB Notification: Performance of pre-optimization done (n=107): time 2.946e-06/0.8359, allocations: 0 / 0.7973 GB, free: 1.395 MB / 0.6075 GB Notification: Performance of matching and sorting (n=107): time 0.009604/0.8455, allocations: 3.024 MB / 0.8003 GB, free: 14.28 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.121e-05/0.8456, allocations: 64.41 kB / 0.8004 GB, free: 14.2 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00699/0.8526, allocations: 3.471 MB / 0.8038 GB, free: 10.71 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 0.0006432/0.8533, allocations: 65.69 kB / 0.8038 GB, free: 10.64 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.002333/0.8556, allocations: 1.792 MB / 0.8056 GB, free: 8.84 MB / 0.6231 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007636/0.8564, allocations: 374.6 kB / 0.8059 GB, free: 8.469 MB / 0.6231 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001496/0.8579, allocations: 474.9 kB / 0.8064 GB, free: 7.996 MB / 0.6231 GB Notification: Performance of setup shared object (initialization): time 0.0001133/0.858, allocations: 309.1 kB / 0.8067 GB, free: 7.691 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002858/0.8609, allocations: 1.188 MB / 0.8078 GB, free: 6.5 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003464/0.8644, allocations: 1.882 MB / 0.8097 GB, free: 4.309 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005767/0.8702, allocations: 2.951 MB / 0.8125 GB, free: 1.105 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.012e-05/0.8702, allocations: 4 kB / 0.8126 GB, free: 1.102 MB / 0.6231 GB Notification: Performance of matching and sorting (n=239) (initialization): time 0.008748/0.879, allocations: 3.756 MB / 0.8162 GB, free: 13.32 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 3.615e-05/0.879, allocations: 13 kB / 0.8162 GB, free: 13.3 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.956e-05/0.8791, allocations: 20 kB / 0.8163 GB, free: 13.29 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002031/0.8811, allocations: 0.7294 MB / 0.817 GB, free: 12.54 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001831/0.883, allocations: 423.3 kB / 0.8174 GB, free: 12.13 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002565/0.8856, allocations: 2.76 MB / 0.8201 GB, free: 9.266 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00341/0.889, allocations: 269.5 kB / 0.8203 GB, free: 9.004 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004024/0.8894, allocations: 151.9 kB / 0.8205 GB, free: 8.855 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.003699/0.8931, allocations: 1.663 MB / 0.8221 GB, free: 7.188 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002668/0.8958, allocations: 1.687 MB / 0.8237 GB, free: 5.191 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.004463/0.9003, allocations: 2.569 MB / 0.8262 GB, free: 2.371 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.637e-05/0.9003, allocations: 4 kB / 0.8263 GB, free: 2.367 MB / 0.6387 GB Notification: Performance of matching and sorting (n=239) (initialization_lambda0): time 0.007978/0.9083, allocations: 3.452 MB / 0.8296 GB, free: 14.89 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 2.666e-05/0.9084, allocations: 12 kB / 0.8296 GB, free: 14.88 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.397e-05/0.9084, allocations: 24.03 kB / 0.8297 GB, free: 14.86 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002788/0.9112, allocations: 0.8701 MB / 0.8305 GB, free: 13.97 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001673/0.9129, allocations: 399.4 kB / 0.8309 GB, free: 13.58 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01942/0.9323, allocations: 13.81 MB / 0.8444 GB, free: 15.09 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003398/0.9358, allocations: 195 kB / 0.8446 GB, free: 14.9 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006497/0.9365, allocations: 136 kB / 0.8447 GB, free: 14.77 MB / 0.67 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 81 * 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 (203): * Single equations (assignments): 195 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * 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): 4 systems {(1,4), (1,4), (1,4), (1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.001036/0.9375, allocations: 304.8 kB / 0.845 GB, free: 14.46 MB / 0.67 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001515/0.939, allocations: 355.3 kB / 0.8453 GB, free: 14.11 MB / 0.67 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00781/0.9469, allocations: 2.635 MB / 0.8479 GB, free: 11.47 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.218e-05/0.9469, allocations: 16 kB / 0.8479 GB, free: 11.46 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.978e-06/0.9469, allocations: 7.938 kB / 0.8479 GB, free: 11.45 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.16e-05/0.947, allocations: 7.969 kB / 0.8479 GB, free: 11.44 MB / 0.67 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01275/0.9597, allocations: 4.821 MB / 0.8526 GB, free: 6.531 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.586e-05/0.9598, allocations: 8 kB / 0.8526 GB, free: 6.523 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001254/0.961, allocations: 239.7 kB / 0.8529 GB, free: 6.289 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001043/0.9621, allocations: 398.9 kB / 0.8532 GB, free: 5.887 MB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001416/0.9623, allocations: 43.95 kB / 0.8533 GB, free: 5.844 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002255/0.9645, allocations: 2.623 MB / 0.8559 GB, free: 3.117 MB / 0.67 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.699e-06/0.9645, allocations: 4.031 kB / 0.8559 GB, free: 3.113 MB / 0.67 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006342/0.9709, allocations: 2.418 MB / 0.8582 GB, free: 0.6445 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001859/0.9728, allocations: 0.6052 MB / 0.8588 GB, free: 16 kB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.3763/1.349, allocations: 21.92 kB / 0.8588 GB, free: 209.6 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002182/1.351, allocations: 95.16 kB / 0.8589 GB, free: 209.6 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001956/1.352, allocations: 86.91 kB / 0.859 GB, free: 209.6 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001742/1.352, allocations: 71.55 kB / 0.8591 GB, free: 209.6 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.003369/1.355, allocations: 2.323 MB / 0.8613 GB, free: 209.4 MB / 0.67 GB Notification: Performance of sort global known variables: time 5.31e-07/1.355, allocations: 2.188 kB / 0.8613 GB, free: 209.4 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.005585/1.361, allocations: 1.79 MB / 0.8631 GB, free: 209.4 MB / 0.67 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 (113): * Single equations (assignments): 99 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * 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): 4 systems {(1,5), (1,5), (1,5), (1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.006098/1.367, allocations: 3.398 MB / 0.8664 GB, free: 208.7 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.009981/1.377, allocations: 4.535 MB / 0.8708 GB, free: 207.1 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 8.636e-06/1.377, allocations: 1.188 kB / 0.8708 GB, free: 207.1 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.002095/1.379, allocations: 0.8941 MB / 0.8717 GB, free: 206.9 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007371/1.386, allocations: 1.764 MB / 0.8734 GB, free: 206.5 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.06721/1.454, allocations: 33.71 MB / 0.9064 GB, free: 187.5 MB / 0.67 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003493/1.457, allocations: 2.253 MB / 0.9086 GB, free: 186.6 MB / 0.67 GB Notification: Performance of simCode: alias equations: time 0.005387/1.463, allocations: 0.8583 MB / 0.9094 GB, free: 186.5 MB / 0.67 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003607/1.466, allocations: 1.64 MB / 0.911 GB, free: 185.2 MB / 0.67 GB Notification: Performance of SimCode: time 2.004e-06/1.466, allocations: 0 / 0.911 GB, free: 185.2 MB / 0.67 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1659/1.632, allocations: 109.4 MB / 1.018 GB, free: 95.2 MB / 0.67 GB Notification: Performance of buildModelFMU: Generate platform static: time 14.79/16.42, allocations: 3.781 kB / 1.018 GB, free: 95.2 MB / 0.67 GB (rm -f IDEAS_dev_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_dev_IDEAS_Fluid_Movers_Examples_SpeedControlled_y_pumpCurves_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IDEAS_dev_IDEAS_Fluid_Movers_Examples_SpeedControlled_y_pumpCurves.fmu > IDEAS_dev_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.pipe 2>&1)