Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.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.Humidifiers.Validation.SprayAirWasher_X,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X",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 0.004655/0.004655, allocations: 99.95 kB / 15.73 MB, free: 6.473 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001186/0.001186, allocations: 194.8 kB / 16.67 MB, free: 6.379 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.277/1.277, allocations: 222.9 MB / 240.4 MB, free: 4.316 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.8825/0.8825, allocations: 135.1 MB / 425.7 MB, free: 12.04 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001278/0.001278, allocations: 59.91 kB / 0.5851 GB, free: 3.883 MB / 494.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3335/0.3348, allocations: 80.91 MB / 0.6641 GB, free: 7.305 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X): time 0.171/0.5058, allocations: 180.3 MB / 0.8402 GB, free: 12.65 MB / 0.67 GB Notification: Performance of NFInst.instExpressions: time 0.005916/0.5118, allocations: 3.74 MB / 0.8439 GB, free: 8.902 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006599/0.5125, allocations: 27.81 kB / 0.8439 GB, free: 8.875 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.001089/0.5136, allocations: 429.5 kB / 0.8443 GB, free: 8.453 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.002777/0.5164, allocations: 1.256 MB / 0.8455 GB, free: 7.191 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.001763/0.5182, allocations: 0.7547 MB / 0.8463 GB, free: 6.441 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.001617/0.5198, allocations: 1.348 MB / 0.8476 GB, free: 5.09 MB / 0.67 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007338/0.5205, allocations: 473.3 kB / 0.848 GB, free: 4.625 MB / 0.67 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002288/0.5228, allocations: 0.9786 MB / 0.849 GB, free: 3.648 MB / 0.67 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0006646/0.5235, allocations: 462.1 kB / 0.8494 GB, free: 3.195 MB / 0.67 GB Notification: Performance of NFPackage.collectConstants: time 9.985e-05/0.5236, allocations: 44 kB / 0.8495 GB, free: 3.152 MB / 0.67 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001877/0.5255, allocations: 1.185 MB / 0.8506 GB, free: 1.965 MB / 0.67 GB Notification: Performance of NFScalarize.scalarize: time 0.0002165/0.5257, allocations: 199.3 kB / 0.8508 GB, free: 1.77 MB / 0.67 GB Notification: Performance of NFVerifyModel.verify: time 0.0003712/0.5261, allocations: 326.3 kB / 0.8511 GB, free: 1.449 MB / 0.67 GB Notification: Performance of NFConvertDAE.convert: time 0.00171/0.5278, allocations: 1.204 MB / 0.8523 GB, free: 248 kB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 5.33e-06/0.5279, allocations: 4 kB / 0.8523 GB, free: 244 kB / 0.67 GB Notification: Performance of FrontEnd: time 1.293e-06/0.5279, allocations: 0 / 0.8523 GB, free: 244 kB / 0.67 GB Notification: Performance of Transformations before backend: time 1.635e-05/0.5279, allocations: 4 kB / 0.8523 GB, free: 240 kB / 0.67 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 97 * Number of variables: 97 Notification: Performance of Generate backend data structure: time 0.002131/0.53, allocations: 1.04 MB / 0.8533 GB, free: 15.14 MB / 0.6856 GB Notification: Performance of prepare preOptimizeDAE: time 3.685e-05/0.5301, allocations: 8.031 kB / 0.8533 GB, free: 15.13 MB / 0.6856 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.799e-05/0.5302, allocations: 82.52 kB / 0.8534 GB, free: 15.04 MB / 0.6856 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001318/0.5315, allocations: 222.8 kB / 0.8536 GB, free: 14.82 MB / 0.6856 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009006/0.5324, allocations: 0.5577 MB / 0.8542 GB, free: 14.22 MB / 0.6856 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.205e-05/0.5325, allocations: 33 kB / 0.8542 GB, free: 14.19 MB / 0.6856 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.407e-05/0.5325, allocations: 40 kB / 0.8543 GB, free: 14.15 MB / 0.6856 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001028/0.5336, allocations: 0.5387 MB / 0.8548 GB, free: 13.6 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.459e-05/0.5336, allocations: 0 / 0.8548 GB, free: 13.6 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.934e-05/0.5337, allocations: 16 kB / 0.8548 GB, free: 13.59 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.016e-05/0.5337, allocations: 28.86 kB / 0.8548 GB, free: 13.55 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00118/0.5349, allocations: 0.5074 MB / 0.8553 GB, free: 13.05 MB / 0.6856 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 0.003197/0.5381, allocations: 2.203 MB / 0.8575 GB, free: 10.66 MB / 0.6856 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007253/0.5388, allocations: 351.8 kB / 0.8578 GB, free: 10.29 MB / 0.6856 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002244/0.5391, allocations: 142.3 kB / 0.8579 GB, free: 10.14 MB / 0.6856 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001304/0.5404, allocations: 0.8376 MB / 0.8588 GB, free: 9.141 MB / 0.6856 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003027/0.5407, allocations: 193 kB / 0.8589 GB, free: 8.934 MB / 0.6856 GB Notification: Performance of pre-optimization done (n=26): time 1.803e-06/0.5407, allocations: 0 / 0.8589 GB, free: 8.934 MB / 0.6856 GB Notification: Performance of matching and sorting (n=26): time 0.0009541/0.5417, allocations: 434.1 kB / 0.8594 GB, free: 8.504 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.453e-05/0.5417, allocations: 81.09 kB / 0.8594 GB, free: 8.406 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0008459/0.5426, allocations: 0.6564 MB / 0.8601 GB, free: 7.738 MB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 3.089e-05/0.5426, allocations: 29.7 kB / 0.8601 GB, free: 7.703 MB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002229/0.5428, allocations: 319.7 kB / 0.8604 GB, free: 7.387 MB / 0.6856 GB Notification: Performance of collectInitialBindings (initialization): time 7.019e-05/0.5429, allocations: 90.73 kB / 0.8605 GB, free: 7.297 MB / 0.6856 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001287/0.543, allocations: 77.59 kB / 0.8606 GB, free: 7.215 MB / 0.6856 GB Notification: Performance of setup shared object (initialization): time 0.0001367/0.5432, allocations: 370.8 kB / 0.8609 GB, free: 6.844 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003677/0.5436, allocations: 144.8 kB / 0.8611 GB, free: 6.699 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004565/0.544, allocations: 273 kB / 0.8613 GB, free: 6.371 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006375/0.5447, allocations: 385.5 kB / 0.8617 GB, free: 5.941 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.759e-06/0.5447, allocations: 0 / 0.8617 GB, free: 5.941 MB / 0.6856 GB Notification: Performance of matching and sorting (n=43) (initialization): time 0.001005/0.5457, allocations: 481.8 kB / 0.8621 GB, free: 5.465 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 1.818e-05/0.5457, allocations: 8 kB / 0.8622 GB, free: 5.457 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.578e-06/0.5458, allocations: 7.984 kB / 0.8622 GB, free: 5.449 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.837e-05/0.5458, allocations: 11.94 kB / 0.8622 GB, free: 5.438 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004159/0.5462, allocations: 87.83 kB / 0.8623 GB, free: 5.352 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.21e-05/0.5462, allocations: 7.984 kB / 0.8623 GB, free: 5.344 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005774/0.5468, allocations: 75.7 kB / 0.8623 GB, free: 5.27 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.963e-05/0.5468, allocations: 20 kB / 0.8624 GB, free: 5.25 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005134/0.5474, allocations: 299.5 kB / 0.8626 GB, free: 4.957 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004471/0.5478, allocations: 278.8 kB / 0.8629 GB, free: 4.625 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006257/0.5485, allocations: 386.8 kB / 0.8633 GB, free: 4.195 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.178e-06/0.5485, allocations: 4 kB / 0.8633 GB, free: 4.191 MB / 0.6856 GB Notification: Performance of matching and sorting (n=43) (initialization_lambda0): time 0.0009817/0.5495, allocations: 480.6 kB / 0.8637 GB, free: 3.715 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 1.135e-05/0.5495, allocations: 8 kB / 0.8637 GB, free: 3.707 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.903e-06/0.5495, allocations: 7.938 kB / 0.8638 GB, free: 3.699 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.512e-06/0.5495, allocations: 4 kB / 0.8638 GB, free: 3.695 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003923/0.5499, allocations: 83.89 kB / 0.8638 GB, free: 3.613 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.948e-06/0.5499, allocations: 11.94 kB / 0.8638 GB, free: 3.602 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005614/0.5505, allocations: 67.89 kB / 0.8639 GB, free: 3.535 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.331e-05/0.5505, allocations: 12 kB / 0.8639 GB, free: 3.523 MB / 0.6856 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * Number of states: 0 () * Number of discrete variables: 5 ($PRE.XSet.nextTimeEvent,$whenCondition1,XSet.nextTimeEventScaled,$PRE.XSet.nextTimeEventScaled,XSet.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (43): * Single equations (assignments): 43 * 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 prepare postOptimizeDAE: time 0.0001357/0.5507, allocations: 216.1 kB / 0.8641 GB, free: 3.305 MB / 0.6856 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.612e-05/0.5508, allocations: 63.19 kB / 0.8642 GB, free: 3.242 MB / 0.6856 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005851/0.5514, allocations: 323.7 kB / 0.8645 GB, free: 2.914 MB / 0.6856 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.179e-06/0.5514, allocations: 4 kB / 0.8645 GB, free: 2.91 MB / 0.6856 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.448e-06/0.5514, allocations: 0 / 0.8645 GB, free: 2.91 MB / 0.6856 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.052e-06/0.5514, allocations: 3.984 kB / 0.8645 GB, free: 2.906 MB / 0.6856 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001461/0.5529, allocations: 1.076 MB / 0.8656 GB, free: 1.742 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.34e-06/0.5529, allocations: 8.312 kB / 0.8656 GB, free: 1.734 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001843/0.5531, allocations: 39.92 kB / 0.8656 GB, free: 1.695 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.2e-06/0.5531, allocations: 4 kB / 0.8656 GB, free: 1.691 MB / 0.6856 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.782e-05/0.5531, allocations: 11.98 kB / 0.8656 GB, free: 1.68 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.288e-06/0.5531, allocations: 4 kB / 0.8656 GB, free: 1.676 MB / 0.6856 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.438e-06/0.5531, allocations: 3.938 kB / 0.8656 GB, free: 1.672 MB / 0.6856 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.000565/0.5537, allocations: 482 kB / 0.8661 GB, free: 1.156 MB / 0.6856 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001922/0.5539, allocations: 160.3 kB / 0.8662 GB, free: 0.9805 MB / 0.6856 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.904e-05/0.554, allocations: 15.98 kB / 0.8663 GB, free: 0.9648 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003332/0.5543, allocations: 15.98 kB / 0.8663 GB, free: 0.9492 MB / 0.6856 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.736e-05/0.5544, allocations: 23.92 kB / 0.8663 GB, free: 0.9258 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.112e-05/0.5544, allocations: 8 kB / 0.8663 GB, free: 0.918 MB / 0.6856 GB Notification: Performance of sorting global known variables: time 0.0006396/0.5551, allocations: 483 kB / 0.8668 GB, free: 460 kB / 0.6856 GB Notification: Performance of sort global known variables: time 2.71e-07/0.5551, allocations: 0 / 0.8668 GB, free: 460 kB / 0.6856 GB Notification: Performance of remove unused functions: time 0.0008407/0.5559, allocations: 263.6 kB / 0.867 GB, free: 196 kB / 0.6856 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of discrete states: 2 (XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (25): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 0.2686/0.8246, allocations: 1.408 MB / 0.8684 GB, free: 192.8 MB / 0.6856 GB Notification: Performance of simCode: created initialization part: time 0.001209/0.8258, allocations: 0.5087 MB / 0.8689 GB, free: 192.8 MB / 0.6856 GB Notification: Performance of simCode: created event and clocks part: time 3.096e-06/0.8258, allocations: 0 / 0.8689 GB, free: 192.8 MB / 0.6856 GB Notification: Performance of simCode: created simulation system equations: time 0.0002073/0.826, allocations: 123.3 kB / 0.869 GB, free: 192.8 MB / 0.6856 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001338/0.8274, allocations: 276.7 kB / 0.8693 GB, free: 192.7 MB / 0.6856 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006075/0.8335, allocations: 4.641 MB / 0.8738 GB, free: 190.1 MB / 0.6856 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000349/0.8338, allocations: 0.8992 MB / 0.8747 GB, free: 189.4 MB / 0.6856 GB Notification: Performance of simCode: alias equations: time 0.0005727/0.8344, allocations: 176.9 kB / 0.8748 GB, free: 189.4 MB / 0.6856 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002436/0.8347, allocations: 201.9 kB / 0.875 GB, free: 189.3 MB / 0.6856 GB Notification: Performance of SimCode: time 2.91e-07/0.8347, allocations: 0.9844 kB / 0.875 GB, free: 189.3 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.968/2.803, allocations: 15.79 MB / 0.8905 GB, free: 182.3 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.29/13.1, allocations: 4.969 kB / 0.8905 GB, free: 182.3 MB / 0.6856 GB (rm -f IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X_fmu --startTime=0 --stopTime=1080 --timeout=50 --tolerance=1e-06 IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X.fmu > IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe 2>&1)