Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages.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: translateModel(IDEAS.Fluid.Movers.Examples.MoverStages,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages") translateModel(IDEAS.Fluid.Movers.Examples.MoverStages,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001156/0.001156, allocations: 102.2 kB / 16.35 MB, free: 5.875 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001136/0.001136, allocations: 194.3 kB / 17.3 MB, free: 5.516 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.316/1.316, allocations: 222.9 MB / 241 MB, free: 15 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.7895/0.7895, allocations: 135.1 MB / 426.3 MB, free: 4.137 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001201/0.001201, allocations: 67.88 kB / 0.5067 GB, free: 7.68 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3796/0.3808, allocations: 80.9 MB / 0.5857 GB, free: 25.57 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Movers.Examples.MoverStages): time 0.07906/0.4599, allocations: 95.08 MB / 0.6786 GB, free: 11.22 MB / 0.5137 GB Notification: Performance of NFInst.instExpressions: time 0.03946/0.4994, allocations: 30.57 MB / 0.7085 GB, free: 12.57 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005349/0.5048, allocations: 159.1 kB / 0.7086 GB, free: 12.42 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.005783/0.5106, allocations: 2.052 MB / 0.7106 GB, free: 10.36 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.01155/0.5223, allocations: 4.556 MB / 0.7151 GB, free: 5.785 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.008754/0.531, allocations: 3.813 MB / 0.7188 GB, free: 2.004 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.01151/0.5425, allocations: 9.022 MB / 0.7276 GB, free: 8.961 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00499/0.5476, allocations: 3.475 MB / 0.731 GB, free: 5.418 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008032/0.5556, allocations: 3.857 MB / 0.7348 GB, free: 1.562 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004756/0.5604, allocations: 2.863 MB / 0.7376 GB, free: 14.69 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0009233/0.5613, allocations: 412 kB / 0.7379 GB, free: 14.29 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005572/0.5669, allocations: 2.738 MB / 0.7406 GB, free: 11.54 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.001688/0.5686, allocations: 1.679 MB / 0.7423 GB, free: 9.859 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.003616/0.5722, allocations: 2.604 MB / 0.7448 GB, free: 7.242 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.3533/0.9255, allocations: 7.934 MB / 0.7526 GB, free: 26.91 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 8.085e-06/0.9256, allocations: 0.5312 kB / 0.7526 GB, free: 26.91 MB / 0.5762 GB Notification: Performance of FrontEnd: time 2.455e-06/0.9256, allocations: 4.625 kB / 0.7526 GB, free: 26.91 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 0.0002452/0.9258, allocations: 0 / 0.7526 GB, free: 26.91 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: 517 * Number of variables: 517 Notification: Performance of Generate backend data structure: time 0.01249/0.9383, allocations: 5.797 MB / 0.7582 GB, free: 24.58 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 3.801e-05/0.9384, allocations: 14.05 kB / 0.7582 GB, free: 24.58 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006599/0.945, allocations: 1.225 MB / 0.7594 GB, free: 24.26 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01274/0.9577, allocations: 5.19 MB / 0.7645 GB, free: 23.29 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003034/0.9581, allocations: 186.6 kB / 0.7647 GB, free: 23.28 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008328/0.9589, allocations: 231.6 kB / 0.7649 GB, free: 23.28 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005468/0.9644, allocations: 3.07 MB / 0.7679 GB, free: 22.9 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.831e-05/0.9645, allocations: 3.656 kB / 0.7679 GB, free: 22.9 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002121/0.9647, allocations: 86.22 kB / 0.768 GB, free: 22.9 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.12e-05/0.9647, allocations: 50.34 kB / 0.768 GB, free: 22.9 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005055/0.9698, allocations: 2.256 MB / 0.7702 GB, free: 22.86 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 0.01665/0.9864, allocations: 12.69 MB / 0.7826 GB, free: 17.62 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004064/0.9905, allocations: 1.748 MB / 0.7843 GB, free: 17.54 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001634/0.9922, allocations: 0.7909 MB / 0.7851 GB, free: 17.52 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.006687/0.9989, allocations: 4.406 MB / 0.7894 GB, free: 15.62 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002386/1.001, allocations: 1.344 MB / 0.7907 GB, free: 15.56 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=83): time 3.617e-06/1.001, allocations: 0 / 0.7907 GB, free: 15.56 MB / 0.5762 GB Notification: Performance of matching and sorting (n=83): time 0.006376/1.008, allocations: 2.631 MB / 0.7933 GB, free: 15.25 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.972e-05/1.008, allocations: 125.6 kB / 0.7934 GB, free: 15.12 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006289/1.014, allocations: 4.996 MB / 0.7983 GB, free: 14.76 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.000512/1.015, allocations: 59.81 kB / 0.7983 GB, free: 14.73 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.001639/1.016, allocations: 2.121 MB / 0.8004 GB, free: 14.26 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.00042/1.017, allocations: 291.5 kB / 0.8007 GB, free: 14.08 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006789/1.017, allocations: 496.8 kB / 0.8012 GB, free: 14.05 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 3.923e-05/1.017, allocations: 306.3 kB / 0.8015 GB, free: 13.75 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002381/1.02, allocations: 1.583 MB / 0.803 GB, free: 13.72 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002758/1.023, allocations: 2.533 MB / 0.8055 GB, free: 12.52 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005051/1.028, allocations: 4.006 MB / 0.8094 GB, free: 11.43 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.661e-05/1.028, allocations: 10.97 kB / 0.8094 GB, free: 11.43 MB / 0.5762 GB Notification: Performance of matching and sorting (n=253) (initialization): time 0.007172/1.035, allocations: 4.392 MB / 0.8137 GB, free: 11.12 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 3.12e-05/1.035, allocations: 22.88 kB / 0.8137 GB, free: 11.12 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.176e-05/1.035, allocations: 31.59 kB / 0.8137 GB, free: 11.12 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.218e-05/1.035, allocations: 38.69 kB / 0.8138 GB, free: 11.12 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003214/1.038, allocations: 0.58 MB / 0.8143 GB, free: 11.11 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001885/1.04, allocations: 2.985 MB / 0.8173 GB, free: 8.762 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003183/1.043, allocations: 320.4 kB / 0.8176 GB, free: 8.613 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003169/1.044, allocations: 183.7 kB / 0.8177 GB, free: 8.613 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.003307/1.047, allocations: 2.243 MB / 0.8199 GB, free: 7.945 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002371/1.049, allocations: 2.239 MB / 0.8221 GB, free: 5.684 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.004052/1.053, allocations: 3.44 MB / 0.8255 GB, free: 1.977 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.313e-05/1.053, allocations: 8 kB / 0.8255 GB, free: 1.969 MB / 0.5762 GB Notification: Performance of matching and sorting (n=253) (initialization_lambda0): time 0.006566/1.06, allocations: 3.792 MB / 0.8292 GB, free: 14.35 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 2.675e-05/1.06, allocations: 20 kB / 0.8292 GB, free: 14.33 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.575e-05/1.06, allocations: 28 kB / 0.8292 GB, free: 14.3 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.65e-05/1.06, allocations: 40 kB / 0.8293 GB, free: 14.27 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002697/1.063, allocations: 0.6117 MB / 0.8299 GB, free: 13.69 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.372e-05/1.063, allocations: 58 kB / 0.8299 GB, free: 13.64 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00297/1.066, allocations: 223.1 kB / 0.8301 GB, free: 13.42 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003321/1.066, allocations: 176 kB / 0.8303 GB, free: 13.25 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 127 * Number of states: 0 () * Number of discrete variables: 6 ($PRE.integerTable.combiTimeTable.nextTimeEvent,$whenCondition1,integerTable.combiTimeTable.nextTimeEventScaled,$PRE.integerTable.combiTimeTable.nextTimeEventScaled,integerTable.combiTimeTable.nextTimeEvent,integerTable.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (222): * Single equations (assignments): 214 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 4 * Torn equation systems: 0 * 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): 4 systems {1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0007692/1.067, allocations: 327.4 kB / 0.8306 GB, free: 12.96 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001353/1.068, allocations: 423.8 kB / 0.831 GB, free: 12.54 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006139/1.075, allocations: 2.579 MB / 0.8335 GB, free: 10 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.716e-05/1.075, allocations: 8 kB / 0.8335 GB, free: 9.996 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.52e-06/1.075, allocations: 0 / 0.8335 GB, free: 9.996 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.631e-05/1.075, allocations: 15.91 kB / 0.8336 GB, free: 9.98 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01007/1.085, allocations: 5.131 MB / 0.8386 GB, free: 4.84 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.112e-06/1.085, allocations: 1.969 kB / 0.8386 GB, free: 4.84 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001378/1.086, allocations: 269.2 kB / 0.8388 GB, free: 4.586 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003436/1.086, allocations: 141.6 kB / 0.839 GB, free: 4.441 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001009/1.087, allocations: 47.95 kB / 0.839 GB, free: 4.395 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001538/1.088, allocations: 2.658 MB / 0.8416 GB, free: 1.645 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.837e-06/1.088, allocations: 3.656 kB / 0.8416 GB, free: 1.645 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005121/1.093, allocations: 2.388 MB / 0.8439 GB, free: 15.25 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001817/1.095, allocations: 0.6863 MB / 0.8446 GB, free: 14.54 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005361/1.096, allocations: 27.98 kB / 0.8446 GB, free: 14.51 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001769/1.097, allocations: 103.2 kB / 0.8447 GB, free: 14.41 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001656/1.098, allocations: 84.81 kB / 0.8448 GB, free: 14.33 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001379/1.098, allocations: 63.95 kB / 0.8449 GB, free: 14.27 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.004807/1.103, allocations: 3.427 MB / 0.8482 GB, free: 10.86 MB / 0.6075 GB Notification: Performance of sort global known variables: time 3.31e-07/1.103, allocations: 0 / 0.8482 GB, free: 10.86 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.005596/1.108, allocations: 1.764 MB / 0.85 GB, free: 9.094 MB / 0.6075 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition1,integerTable.y,integerTable.combiTimeTable.nextTimeEvent,integerTable.combiTimeTable.nextTimeEventScaled) * Number of discrete states: 2 (integerTable.combiTimeTable.nextTimeEvent,integerTable.combiTimeTable.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (106): * Single equations (assignments): 90 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 2 * 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): 2 systems {1, 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 {(1,1), (1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002253/1.11, allocations: 0.9661 MB / 0.8509 GB, free: 8.379 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.01062/1.121, allocations: 4.938 MB / 0.8557 GB, free: 3.633 MB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 8.736e-06/1.121, allocations: 0 / 0.8557 GB, free: 3.633 MB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.002447/1.124, allocations: 0.9971 MB / 0.8567 GB, free: 2.664 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.008248/1.132, allocations: 2.309 MB / 0.8589 GB, free: 420 kB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0121/1.144, allocations: 7.35 MB / 0.8661 GB, free: 9.047 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002444/1.146, allocations: 2.61 MB / 0.8687 GB, free: 6.41 MB / 0.6231 GB Notification: Performance of simCode: alias equations: time 0.006018/1.152, allocations: 1.113 MB / 0.8698 GB, free: 5.293 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001204/1.154, allocations: 323 kB / 0.8701 GB, free: 4.984 MB / 0.6231 GB Notification: Performance of SimCode: time 1.002e-06/1.154, allocations: 0 / 0.8701 GB, free: 4.984 MB / 0.6231 GB Notification: Performance of Templates: time 0.1508/1.304, allocations: 88.45 MB / 0.9564 GB, free: 13.8 MB / 0.7169 GB make -j1 -f IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages.makefile (rm -f IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages.sim & ./IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages -abortSlowSimulation -alarm=480 -s cvode -lv LOG_STATS > IDEAS_dev_IDEAS.Fluid.Movers.Examples.MoverStages.pipe 2>&1)