Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr OpenIPSL_OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous.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/Modelica 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/OpenIPSL 3.0.1/package.mo", uses=false) Using package OpenIPSL with version 3.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.0.1/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 Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 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(OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous,fileNamePrefix="OpenIPSL_OpenIPSL_Examples_PSATSystems_Discretization_FourthOrder_AVRII_Discretized_Continuous",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous,fileNamePrefix="OpenIPSL_OpenIPSL_Examples_PSATSystems_Discretization_FourthOrder_AVRII_Discretized_Continuous",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 0.0008918/0.0008916, allocations: 91.84 kB / 15.06 MB, free: 1.098 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.375/1.375, allocations: 223.2 MB / 239 MB, free: 5.457 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001251/0.001251, allocations: 176.5 kB / 290.3 MB, free: 2.148 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.0.1/package.mo): time 0.4761/0.4761, allocations: 78.55 MB / 419.9 MB, free: 4.391 MB / 286.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003675/0.0003676, allocations: 8 kB / 499.9 MB, free: 6.301 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1396/0.14, allocations: 69.36 MB / 0.5559 GB, free: 0.8906 MB / 430.1 MB Notification: Performance of NFInst.instantiate(OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous): time 0.2678/0.4079, allocations: 6.192 MB / 0.5619 GB, free: 37.19 MB / 430.1 MB Notification: Performance of NFInst.instExpressions: time 0.00457/0.4125, allocations: 1.958 MB / 0.5639 GB, free: 36.91 MB / 430.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008166/0.4133, allocations: 12.09 kB / 0.5639 GB, free: 36.91 MB / 430.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0007203/0.4141, allocations: 174.4 kB / 0.564 GB, free: 36.84 MB / 430.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001776/0.4159, allocations: 0.6613 MB / 0.5647 GB, free: 36.59 MB / 430.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.0.1/Electrical/Machines/PSAT/Order4.mo:25:3-30:9:writable] Warning: In relation order4.xq <> order4.x1q, <> on Real numbers is only allowed inside functions. Notification: Performance of NFTyping.typeClassSections: time 0.001198/0.4171, allocations: 0.553 MB / 0.5652 GB, free: 36.5 MB / 430.1 MB Notification: Performance of NFFlatten.flatten: time 0.00148/0.4186, allocations: 1.432 MB / 0.5666 GB, free: 36.17 MB / 430.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0004452/0.419, allocations: 271.1 kB / 0.5669 GB, free: 36.12 MB / 430.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0006064/0.4196, allocations: 0.5671 MB / 0.5674 GB, free: 35.96 MB / 430.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0007135/0.4203, allocations: 0.7337 MB / 0.5681 GB, free: 35.77 MB / 430.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001205/0.4205, allocations: 59.97 kB / 0.5682 GB, free: 35.77 MB / 430.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0004432/0.4209, allocations: 180.4 kB / 0.5684 GB, free: 35.76 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002763/0.4212, allocations: 255.7 kB / 0.5686 GB, free: 35.69 MB / 430.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0002393/0.4215, allocations: 238.5 kB / 0.5688 GB, free: 35.61 MB / 430.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0009289/0.4224, allocations: 1.241 MB / 0.5701 GB, free: 35.4 MB / 430.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.909e-06/0.4224, allocations: 0.5625 kB / 0.5701 GB, free: 35.4 MB / 430.1 MB Notification: Performance of FrontEnd: time 1.333e-06/0.4224, allocations: 0 / 0.5701 GB, free: 35.4 MB / 430.1 MB Notification: Performance of Transformations before backend: time 1.442e-05/0.4224, allocations: 0 / 0.5701 GB, free: 35.4 MB / 430.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 198 * Number of variables: 198 Notification: Performance of Generate backend data structure: time 0.007028/0.4295, allocations: 2.535 MB / 0.5725 GB, free: 34.45 MB / 430.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.047e-05/0.4295, allocations: 8.562 kB / 0.5725 GB, free: 34.45 MB / 430.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000289/0.4298, allocations: 132.3 kB / 0.5727 GB, free: 34.41 MB / 430.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00458/0.4344, allocations: 0.7927 MB / 0.5734 GB, free: 34.31 MB / 430.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001475/0.4359, allocations: 0.8642 MB / 0.5743 GB, free: 33.93 MB / 430.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002266/0.4361, allocations: 267.9 kB / 0.5745 GB, free: 33.75 MB / 430.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001421/0.4363, allocations: 90.44 kB / 0.5746 GB, free: 33.74 MB / 430.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002459/0.4388, allocations: 1.453 MB / 0.576 GB, free: 33.31 MB / 430.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.848e-05/0.4388, allocations: 0 / 0.576 GB, free: 33.31 MB / 430.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.392e-05/0.4389, allocations: 35.83 kB / 0.5761 GB, free: 33.29 MB / 430.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.481e-05/0.4389, allocations: 19.03 kB / 0.5761 GB, free: 33.29 MB / 430.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001753/0.4407, allocations: 1.062 MB / 0.5771 GB, free: 32.95 MB / 430.1 MB 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 0.005103/0.4458, allocations: 3.769 MB / 0.5808 GB, free: 30.71 MB / 430.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.006737/0.4525, allocations: 3.091 MB / 0.5838 GB, free: 29.67 MB / 430.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001538/0.4541, allocations: 0.8247 MB / 0.5846 GB, free: 29.35 MB / 430.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001201/0.4542, allocations: 33.44 kB / 0.5847 GB, free: 29.33 MB / 430.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001468/0.4557, allocations: 0.8009 MB / 0.5855 GB, free: 29.03 MB / 430.1 MB Notification: Performance of pre-optimization done (n=115): time 4.959e-06/0.4557, allocations: 0 / 0.5855 GB, free: 29.03 MB / 430.1 MB Notification: Performance of matching and sorting (n=115): time 0.02901/0.4847, allocations: 8.65 MB / 0.5939 GB, free: 27.41 MB / 430.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001519/0.4849, allocations: 196.2 kB / 0.5941 GB, free: 27.21 MB / 430.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002403/0.4873, allocations: 1.084 MB / 0.5951 GB, free: 26.76 MB / 430.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0002416/0.4876, allocations: 47.88 kB / 0.5952 GB, free: 26.71 MB / 430.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004409/0.4881, allocations: 483.7 kB / 0.5957 GB, free: 26.33 MB / 430.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0004961/0.4886, allocations: 334.9 kB / 0.596 GB, free: 26.08 MB / 430.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002302/0.4888, allocations: 34.56 kB / 0.596 GB, free: 26.05 MB / 430.1 MB Notification: Performance of setup shared object (initialization): time 0.0001622/0.489, allocations: 365.7 kB / 0.5964 GB, free: 25.72 MB / 430.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001897/0.4909, allocations: 0.8112 MB / 0.5971 GB, free: 25.44 MB / 430.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002054/0.493, allocations: 1.151 MB / 0.5983 GB, free: 24.76 MB / 430.1 MB Notification: The given system is mixed-determined. [index = 2] Notification: Performance of analyzeInitialSystem (initialization): time 0.02242/0.5154, allocations: 6.063 MB / 0.6042 GB, free: 22.83 MB / 430.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.887e-05/0.5155, allocations: 3.469 kB / 0.6042 GB, free: 22.83 MB / 430.1 MB Notification: Performance of matching and sorting (n=216) (initialization): time 0.01555/0.531, allocations: 5.221 MB / 0.6093 GB, free: 21.54 MB / 430.1 MB Notification: Performance of prepare postOptimizeDAE: time 8.865e-05/0.5312, allocations: 62.3 kB / 0.6094 GB, free: 21.48 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.173e-05/0.5312, allocations: 9.625 kB / 0.6094 GB, free: 21.48 MB / 430.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.005946/0.5372, allocations: 1.854 MB / 0.6112 GB, free: 20.92 MB / 430.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001596/0.5388, allocations: 314.6 kB / 0.6115 GB, free: 20.65 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01718/0.556, allocations: 8.82 MB / 0.6201 GB, free: 11.78 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002037/0.558, allocations: 238.7 kB / 0.6203 GB, free: 11.55 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003097/0.5584, allocations: 71.97 kB / 0.6204 GB, free: 11.48 MB / 430.1 MB Warning: Assuming fixed start value for the following 3 variables: order4.e1d:VARIABLE(start = order4.e1d0 unit = "1" fixed = true ) "d-axis transient voltage" type: Real order4.e1q:VARIABLE(start = order4.e1q0 unit = "1" fixed = true ) "q-axis transient voltage" type: Real order4.delta:VARIABLE(flow=false start = order4.delta0 unit = "rad" fixed = true ) "Rotor angle" type: Real Warning: The initial conditions are over specified. The following 4 initial equations are redundant, so they are removed from the initialization sytem: $DER.aVRTypeII.firstOrder2.y = 0.0 $DER.aVRTypeII.derivativeBlock.x = 0.0 aVRTypeII.ExcitationSystem.y = 0.0 aVRTypeII.simpleLagLim.state = 0.0. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 43 * Number of states: 0 () * Number of discrete variables: 2 ($whenCondition2,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 4 (aVRTypeII.firstOrder2.y,aVRTypeII.ExcitationSystem.x_scaled[1],aVRTypeII.derivativeBlock.x,aVRTypeII.simpleLagLim.state) * Top-level inputs: 0 Notification: Strong component statistics for initialization (185): * Single equations (assignments): 182 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {18 14} Notification: Performance of prepare postOptimizeDAE: time 0.0009833/0.5594, allocations: 339.5 kB / 0.6207 GB, free: 11.14 MB / 430.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001959/0.5613, allocations: 0.6924 MB / 0.6214 GB, free: 10.43 MB / 430.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01218/0.5735, allocations: 4.99 MB / 0.6263 GB, free: 5.414 MB / 430.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.082e-05/0.5736, allocations: 16 kB / 0.6263 GB, free: 5.398 MB / 430.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.043e-05/0.5736, allocations: 8.812 kB / 0.6263 GB, free: 5.391 MB / 430.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.51e-05/0.5737, allocations: 8.625 kB / 0.6263 GB, free: 5.383 MB / 430.1 MB 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 0.01482/0.5885, allocations: 6.542 MB / 0.6327 GB, free: 14.73 MB / 446.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.786e-05/0.5886, allocations: 0 / 0.6327 GB, free: 14.73 MB / 446.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006102/0.5892, allocations: 111.8 kB / 0.6328 GB, free: 14.62 MB / 446.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.005862/0.5951, allocations: 2.008 MB / 0.6347 GB, free: 12.61 MB / 446.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002003/0.5953, allocations: 27.98 kB / 0.6348 GB, free: 12.58 MB / 446.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02261/0.6179, allocations: 12.04 MB / 0.6465 GB, free: 148 kB / 446.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.566e-06/0.6179, allocations: 0 / 0.6465 GB, free: 148 kB / 446.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01592/0.6339, allocations: 6.017 MB / 0.6524 GB, free: 10.08 MB / 462.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0006708/0.6346, allocations: 239.2 kB / 0.6526 GB, free: 9.824 MB / 462.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000484/0.6351, allocations: 33.73 kB / 0.6527 GB, free: 9.793 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001458/0.6366, allocations: 143.9 kB / 0.6528 GB, free: 9.652 MB / 462.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006/0.6372, allocations: 181.6 kB / 0.653 GB, free: 9.473 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001597/0.6374, allocations: 28 kB / 0.653 GB, free: 9.445 MB / 462.1 MB Notification: Performance of sorting global known variables: time 0.001403/0.6388, allocations: 0.7277 MB / 0.6537 GB, free: 8.711 MB / 462.1 MB Notification: Performance of sort global known variables: time 1.9e-07/0.6388, allocations: 0 / 0.6537 GB, free: 8.711 MB / 462.1 MB Notification: Performance of remove unused functions: time 0.002265/0.6411, allocations: 491.6 kB / 0.6542 GB, free: 8.23 MB / 462.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 6 (order2.delta,order2.w,order4.delta,order4.w,order4.e1q,order4.e1d) * Number of discrete variables: 2 ($whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 4 (aVRTypeII.ExcitationSystem.x_scaled[1],aVRTypeII.derivativeBlock.x,aVRTypeII.firstOrder2.y,aVRTypeII.simpleLagLim.state) * Top-level inputs: 0 Notification: Strong component statistics for simulation (72): * Single equations (assignments): 68 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 2 {(1,100.0%) 1,(20,23.0%) 12} * Non-linear torn systems: 1 {4 17} Notification: Performance of Backend phase and start with SimCode phase: time 0.016/0.6571, allocations: 6.625 MB / 0.6606 GB, free: 1.547 MB / 462.1 MB Notification: Performance of simCode: created initialization part: time 0.007484/0.6646, allocations: 2.851 MB / 0.6634 GB, free: 14.66 MB / 478.1 MB Notification: Performance of simCode: created event and clocks part: time 8.276e-06/0.6647, allocations: 4.375 kB / 0.6634 GB, free: 14.66 MB / 478.1 MB Notification: Performance of simCode: created simulation system equations: time 0.004415/0.6691, allocations: 1.592 MB / 0.665 GB, free: 13.04 MB / 478.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002709/0.6718, allocations: 0.5971 MB / 0.6656 GB, free: 12.42 MB / 478.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0278/0.6997, allocations: 12.27 MB / 0.6776 GB, free: 15.73 MB / 494.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008911/0.7006, allocations: 1.156 MB / 0.6787 GB, free: 14.54 MB / 494.1 MB Notification: Performance of simCode: alias equations: time 0.0006102/0.7012, allocations: 117.3 kB / 0.6788 GB, free: 14.43 MB / 494.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008252/0.7021, allocations: 491.3 kB / 0.6793 GB, free: 13.95 MB / 494.1 MB Notification: Performance of SimCode: time 9.31e-07/0.7021, allocations: 3.938 kB / 0.6793 GB, free: 13.95 MB / 494.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.06105/0.7631, allocations: 32.51 MB / 0.711 GB, free: 13.88 MB / 0.5137 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.000366/0.7636, allocations: 260.5 kB / 0.7113 GB, free: 13.54 MB / 0.5137 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.8/3.563, allocations: 6.188 kB / 0.7113 GB, free: 13.54 MB / 0.5137 GB (rm -f OpenIPSL_OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous.pipe ; mkfifo OpenIPSL_OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous.pipe ; head -c 1048576 < OpenIPSL_OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous.pipe >> ../files/OpenIPSL_OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_OpenIPSL_OpenIPSL_Examples_PSATSystems_Discretization_FourthOrder_AVRII_Discretized_Continuous_fmu --startTime=0 --stopTime=20 --timeout=50 --tolerance=1e-06 OpenIPSL_OpenIPSL_Examples_PSATSystems_Discretization_FourthOrder_AVRII_Discretized_Continuous.fmu > OpenIPSL_OpenIPSL.Examples.PSATSystems.Discretization.FourthOrder_AVRII_Discretized_Continuous.pipe 2>&1) Environment - environmentSimulation: