Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature.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/package.mo", uses=false)
Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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(IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature")
translateModel(IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001411/0.001419, allocations: 109.1 kB / 16.41 MB, free: 6.488 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00149/0.00149, allocations: 185.5 kB / 17.34 MB, free: 5.762 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.36/1.36, allocations: 222.9 MB / 241 MB, free: 15.17 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7793/0.7793, allocations: 132.2 MB / 423.4 MB, free: 6.637 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.00227/0.00227, allocations: 61.11 kB / 0.582 GB, free: 23.61 MB / 446.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1574/0.1597, allocations: 80.21 MB / 0.6603 GB, free: 10.29 MB / 0.4981 GB
Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature): time 0.06614/0.2259, allocations: 61.22 MB / 0.7201 GB, free: 12.85 MB / 0.5606 GB
Notification: Performance of NFInst.instExpressions: time 0.01768/0.2437, allocations: 11.99 MB / 0.7318 GB, free: 0.8242 MB / 0.5606 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.002194/0.2459, allocations: 59.62 kB / 0.7319 GB, free: 0.7656 MB / 0.5606 GB
Notification: Performance of NFTyping.typeComponents: time 0.002161/0.2481, allocations: 0.6869 MB / 0.7326 GB, free: 76 kB / 0.5606 GB
Notification: Performance of NFTyping.typeBindings: time 0.005747/0.2539, allocations: 1.963 MB / 0.7345 GB, free: 14.1 MB / 0.5762 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003174/0.2571, allocations: 1.212 MB / 0.7357 GB, free: 12.9 MB / 0.5762 GB
Notification: Performance of NFFlatten.flatten: time 0.004548/0.2616, allocations: 3.099 MB / 0.7387 GB, free: 9.793 MB / 0.5762 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.002052/0.2637, allocations: 1.096 MB / 0.7398 GB, free: 8.664 MB / 0.5762 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003673/0.2674, allocations: 1.382 MB / 0.7411 GB, free: 7.281 MB / 0.5762 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001971/0.2694, allocations: 0.9023 MB / 0.742 GB, free: 6.375 MB / 0.5762 GB
Notification: Performance of NFPackage.collectConstants: time 0.0004287/0.2698, allocations: 116 kB / 0.7421 GB, free: 6.262 MB / 0.5762 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.003574/0.2734, allocations: 1.447 MB / 0.7435 GB, free: 4.812 MB / 0.5762 GB
Notification: Performance of NFScalarize.scalarize: time 0.0005234/0.2739, allocations: 294.9 kB / 0.7438 GB, free: 4.523 MB / 0.5762 GB
Notification: Performance of NFVerifyModel.verify: time 0.00149/0.2754, allocations: 0.7036 MB / 0.7445 GB, free: 3.816 MB / 0.5762 GB
Notification: Performance of NFConvertDAE.convert: time 0.004648/0.2801, allocations: 2.329 MB / 0.7468 GB, free: 1.48 MB / 0.5762 GB
Notification: Performance of FrontEnd - DAE generated: time 5.54e-06/0.2801, allocations: 0 / 0.7468 GB, free: 1.48 MB / 0.5762 GB
Notification: Performance of FrontEnd: time 2.234e-06/0.2801, allocations: 0 / 0.7468 GB, free: 1.48 MB / 0.5762 GB
Notification: Performance of Transformations before backend: time 6.713e-05/0.2802, allocations: 0 / 0.7468 GB, free: 1.48 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: 194
 * Number of variables: 194
Notification: Performance of Generate backend data structure: time 0.3452/0.6254, allocations: 1.741 MB / 0.7485 GB, free: 86.41 MB / 0.5762 GB
Notification: Performance of prepare preOptimizeDAE: time 5.192e-05/0.6254, allocations: 9.734 kB / 0.7485 GB, free: 86.41 MB / 0.5762 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002398/0.6278, allocations: 412.7 kB / 0.7489 GB, free: 86.34 MB / 0.5762 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.002449/0.6303, allocations: 1.17 MB / 0.75 GB, free: 85.96 MB / 0.5762 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.914e-05/0.6304, allocations: 64.12 kB / 0.7501 GB, free: 85.96 MB / 0.5762 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001378/0.6305, allocations: 82.31 kB / 0.7501 GB, free: 85.96 MB / 0.5762 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.002152/0.6327, allocations: 1.018 MB / 0.7511 GB, free: 85.64 MB / 0.5762 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.19e-05/0.6327, allocations: 8.906 kB / 0.7511 GB, free: 85.64 MB / 0.5762 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.662e-05/0.6328, allocations: 32.03 kB / 0.7512 GB, free: 85.61 MB / 0.5762 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.046e-05/0.6328, allocations: 20.28 kB / 0.7512 GB, free: 85.61 MB / 0.5762 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002291/0.6351, allocations: 0.8804 MB / 0.7521 GB, free: 85.34 MB / 0.5762 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 0.006065/0.6412, allocations: 5.221 MB / 0.7572 GB, free: 81.34 MB / 0.5762 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.003494/0.6447, allocations: 0.786 MB / 0.7579 GB, free: 81.14 MB / 0.5762 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0008076/0.6455, allocations: 313.9 kB / 0.7582 GB, free: 81.05 MB / 0.5762 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004662/0.646, allocations: 0.909 MB / 0.7591 GB, free: 80 MB / 0.5762 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.304e-05/0.6461, allocations: 40.62 kB / 0.7591 GB, free: 79.96 MB / 0.5762 GB
Notification: Performance of pre-optimization done (n=44): time 2.395e-06/0.6461, allocations: 0 / 0.7591 GB, free: 79.96 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=44): time 0.006651/0.6527, allocations: 1.605 MB / 0.7607 GB, free: 79.52 MB / 0.5762 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.394e-05/0.6528, allocations: 56.16 kB / 0.7608 GB, free: 79.46 MB / 0.5762 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001968/0.6548, allocations: 1.088 MB / 0.7618 GB, free: 79.01 MB / 0.5762 GB
Notification: Performance of collectPreVariables (initialization): time 6.704e-05/0.6548, allocations: 38.95 kB / 0.7619 GB, free: 78.97 MB / 0.5762 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0003736/0.6552, allocations: 0.5303 MB / 0.7624 GB, free: 78.55 MB / 0.5762 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001215/0.6553, allocations: 158.4 kB / 0.7625 GB, free: 78.43 MB / 0.5762 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002377/0.6556, allocations: 135.7 kB / 0.7627 GB, free: 78.36 MB / 0.5762 GB
Notification: Performance of setup shared object (initialization): time 7.094e-05/0.6557, allocations: 331.1 kB / 0.763 GB, free: 78.05 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009372/0.6566, allocations: 325.1 kB / 0.7633 GB, free: 77.95 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.00108/0.6577, allocations: 0.5396 MB / 0.7638 GB, free: 77.57 MB / 0.5762 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001735/0.6594, allocations: 0.7374 MB / 0.7645 GB, free: 77.17 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.75e-06/0.6595, allocations: 5.562 kB / 0.7645 GB, free: 77.17 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=72) (initialization): time 0.002732/0.6622, allocations: 1.037 MB / 0.7656 GB, free: 76.79 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 2.102e-05/0.6622, allocations: 12.31 kB / 0.7656 GB, free: 76.79 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.363e-05/0.6622, allocations: 5.812 kB / 0.7656 GB, free: 76.79 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.00125/0.6635, allocations: 306.1 kB / 0.7659 GB, free: 76.71 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005843/0.6641, allocations: 141 kB / 0.766 GB, free: 76.7 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001299/0.6654, allocations: 0.8993 MB / 0.7669 GB, free: 76.04 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00123/0.6667, allocations: 155.5 kB / 0.767 GB, free: 75.99 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.38e-05/0.6667, allocations: 31.94 kB / 0.7671 GB, free: 75.99 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001253/0.668, allocations: 0.5231 MB / 0.7676 GB, free: 75.74 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001087/0.6691, allocations: 0.5515 MB / 0.7681 GB, free: 75.37 MB / 0.5762 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001786/0.6709, allocations: 0.7218 MB / 0.7688 GB, free: 74.97 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.292e-06/0.6709, allocations: 10.62 kB / 0.7688 GB, free: 74.96 MB / 0.5762 GB
Notification: Performance of matching and sorting (n=72) (initialization_lambda0): time 0.002643/0.6736, allocations: 1.04 MB / 0.7698 GB, free: 74.59 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 1.552e-05/0.6736, allocations: 8.031 kB / 0.7698 GB, free: 74.59 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.013e-06/0.6736, allocations: 4.188 kB / 0.7698 GB, free: 74.59 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0009961/0.6746, allocations: 297.1 kB / 0.7701 GB, free: 74.52 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005543/0.6752, allocations: 133.7 kB / 0.7703 GB, free: 74.5 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00119/0.6764, allocations: 0.8944 MB / 0.7711 GB, free: 73.84 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001174/0.6776, allocations: 141.9 kB / 0.7713 GB, free: 73.77 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.973e-05/0.6776, allocations: 41.17 kB / 0.7713 GB, free: 73.75 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 23
 * 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 (58):
 * Single equations (assignments): 57
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 1
 * 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): 1 system
   {(1,14)}
Notification: Performance of prepare postOptimizeDAE: time 0.0002188/0.6779, allocations: 217.1 kB / 0.7715 GB, free: 73.54 MB / 0.5762 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001724/0.678, allocations: 117.5 kB / 0.7716 GB, free: 73.48 MB / 0.5762 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003036/0.6811, allocations: 1.075 MB / 0.7727 GB, free: 72.91 MB / 0.5762 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.3e-05/0.6811, allocations: 5.594 kB / 0.7727 GB, free: 72.91 MB / 0.5762 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 6.502e-06/0.6811, allocations: 4.75 kB / 0.7727 GB, free: 72.9 MB / 0.5762 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.753e-06/0.6811, allocations: 5.234 kB / 0.7727 GB, free: 72.9 MB / 0.5762 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004681/0.6858, allocations: 2.189 MB / 0.7748 GB, free: 71.41 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.093e-06/0.6858, allocations: 2.562 kB / 0.7748 GB, free: 71.41 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002988/0.6861, allocations: 76.84 kB / 0.7749 GB, free: 71.39 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0008774/0.687, allocations: 289.3 kB / 0.7752 GB, free: 71.25 MB / 0.5762 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.441e-05/0.6871, allocations: 15.03 kB / 0.7752 GB, free: 71.25 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001226/0.6883, allocations: 0.9222 MB / 0.7761 GB, free: 70.52 MB / 0.5762 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.067e-06/0.6883, allocations: 6.156 kB / 0.7761 GB, free: 70.51 MB / 0.5762 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003444/0.6918, allocations: 1.201 MB / 0.7773 GB, free: 69.78 MB / 0.5762 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0003349/0.6921, allocations: 260.9 kB / 0.7775 GB, free: 69.55 MB / 0.5762 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001415/0.6923, allocations: 24.61 kB / 0.7775 GB, free: 69.54 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007982/0.6931, allocations: 75.78 kB / 0.7776 GB, free: 69.5 MB / 0.5762 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 8.713e-05/0.6932, allocations: 32.45 kB / 0.7776 GB, free: 69.48 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.855e-05/0.6932, allocations: 24.48 kB / 0.7777 GB, free: 69.48 MB / 0.5762 GB
Notification: Performance of sorting global known variables: time 0.001016/0.6942, allocations: 0.7577 MB / 0.7784 GB, free: 69.05 MB / 0.5762 GB
Notification: Performance of sort global known variables: time 1.81e-07/0.6942, allocations: 1.406 kB / 0.7784 GB, free: 69.05 MB / 0.5762 GB
Notification: Performance of remove unused functions: time 0.001492/0.6957, allocations: 0.5753 MB / 0.779 GB, free: 68.94 MB / 0.5762 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 10
 * 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 (34):
 * Single equations (assignments): 29
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 4
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 1
 * 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): 1 system
   {(1,16)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0007029/0.6965, allocations: 393.8 kB / 0.7794 GB, free: 68.77 MB / 0.5762 GB
Notification: Performance of simCode: created initialization part: time 0.003043/0.6995, allocations: 1.158 MB / 0.7805 GB, free: 68.25 MB / 0.5762 GB
Notification: Performance of simCode: created event and clocks part: time 3.757e-06/0.6995, allocations: 0 / 0.7805 GB, free: 68.25 MB / 0.5762 GB
Notification: Performance of simCode: created simulation system equations: time 0.0008683/0.7004, allocations: 364.4 kB / 0.7808 GB, free: 68.08 MB / 0.5762 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002056/0.7025, allocations: 0.5042 MB / 0.7813 GB, free: 67.84 MB / 0.5762 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004383/0.7069, allocations: 2.084 MB / 0.7834 GB, free: 66.58 MB / 0.5762 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003562/0.7072, allocations: 1.069 MB / 0.7844 GB, free: 65.71 MB / 0.5762 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002247/0.7075, allocations: 86.16 kB / 0.7845 GB, free: 65.69 MB / 0.5762 GB
Notification: Performance of SimCode: time 5.71e-07/0.7075, allocations: 0 / 0.7845 GB, free: 65.69 MB / 0.5762 GB
Notification: Performance of Templates: time 0.02302/0.7305, allocations: 24.36 MB / 0.8083 GB, free: 42.4 MB / 0.5762 GB
make -j1 -f IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature.makefile
(rm -f IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature.pipe ; mkfifo IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature.pipe >> ../files/IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature.sim & ./IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.Chillers.Validation.Carnot_TEva_HighTemperature.pipe 2>&1)