Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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(Buildings.Fluid.Examples.FlowSystem.Simplified4,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4") translateModel(Buildings.Fluid.Examples.FlowSystem.Simplified4,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007439/0.0007439, allocations: 86.48 kB / 15.06 MB, free: 1.09 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0007899/0.0007898, allocations: 168.7 kB / 15.95 MB, free: 204 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.281/1.281, allocations: 205.4 MB / 222.1 MB, free: 5.375 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.609/1.609, allocations: 292.7 MB / 0.5499 GB, free: 14.58 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0005283/0.0005283, allocations: 15.62 kB / 0.6737 GB, free: 26.16 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2235/0.2241, allocations: 116.3 MB / 0.7873 GB, free: 11.97 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.FlowSystem.Simplified4): time 0.7128/0.9369, allocations: 329.5 MB / 1.109 GB, free: 8.605 MB / 0.8106 GB Notification: Performance of NFInst.instExpressions: time 0.09349/1.03, allocations: 72.92 MB / 1.18 GB, free: 15.55 MB / 0.8887 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.01436/1.045, allocations: 377.2 kB / 1.181 GB, free: 15.18 MB / 0.8887 GB Notification: Performance of NFTyping.typeComponents: time 0.01428/1.059, allocations: 3.552 MB / 1.184 GB, free: 11.61 MB / 0.8887 GB Notification: Performance of NFTyping.typeBindings: time 0.03191/1.091, allocations: 10.36 MB / 1.194 GB, free: 1.215 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.01931/1.11, allocations: 7.015 MB / 1.201 GB, free: 10.27 MB / 0.9044 GB Notification: Performance of NFFlatten.flatten: time 0.04576/1.156, allocations: 38.2 MB / 1.238 GB, free: 3.961 MB / 0.9356 GB Notification: Performance of NFFlatten.resolveConnections: time 0.02043/1.177, allocations: 14.93 MB / 1.253 GB, free: 4.926 MB / 0.9512 GB Notification: Performance of NFEvalConstants.evaluate: time 0.02636/1.203, allocations: 12.85 MB / 1.266 GB, free: 8.02 MB / 0.9669 GB Notification: Performance of NFSimplifyModel.simplify: time 1.028/2.231, allocations: 13.5 MB / 1.279 GB, free: 44.76 MB / 0.9669 GB Notification: Performance of NFPackage.collectConstants: time 0.007084/2.238, allocations: 0.9982 MB / 1.28 GB, free: 44.76 MB / 0.9669 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01698/2.255, allocations: 3.77 MB / 1.283 GB, free: 44.76 MB / 0.9669 GB Notification: Performance of NFScalarize.scalarize: time 0.01012/2.265, allocations: 4.25 MB / 1.288 GB, free: 44.76 MB / 0.9669 GB Notification: Performance of NFVerifyModel.verify: time 0.01001/2.275, allocations: 2.934 MB / 1.29 GB, free: 44.73 MB / 0.9669 GB Notification: Performance of NFConvertDAE.convert: time 0.02685/2.302, allocations: 19.35 MB / 1.309 GB, free: 44.06 MB / 0.9669 GB Notification: Performance of FrontEnd - DAE generated: time 5.269e-06/2.302, allocations: 0 / 1.309 GB, free: 44.06 MB / 0.9669 GB Notification: Performance of FrontEnd: time 2.034e-06/2.302, allocations: 0 / 1.309 GB, free: 44.06 MB / 0.9669 GB Notification: Performance of Transformations before backend: time 0.0007237/2.303, allocations: 3 kB / 1.309 GB, free: 44.06 MB / 0.9669 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1775 * Number of variables: 1775 Notification: Performance of Generate backend data structure: time 0.04906/2.352, allocations: 18.16 MB / 1.327 GB, free: 37.73 MB / 0.9669 GB Notification: Performance of prepare preOptimizeDAE: time 3.953e-05/2.352, allocations: 12 kB / 1.327 GB, free: 37.73 MB / 0.9669 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01293/2.365, allocations: 2.3 MB / 1.329 GB, free: 36.88 MB / 0.9669 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.03285/2.398, allocations: 13.4 MB / 1.342 GB, free: 34.99 MB / 0.9669 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001193/2.399, allocations: 0.728 MB / 1.343 GB, free: 34.97 MB / 0.9669 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.005216/2.404, allocations: 0.7878 MB / 1.344 GB, free: 34.97 MB / 0.9669 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.04062/2.445, allocations: 14.89 MB / 1.358 GB, free: 34.23 MB / 0.9669 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.000497/2.446, allocations: 23.33 kB / 1.358 GB, free: 34.22 MB / 0.9669 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004766/2.45, allocations: 288.4 kB / 1.359 GB, free: 34.22 MB / 0.9669 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002052/2.45, allocations: 188.7 kB / 1.359 GB, free: 34.22 MB / 0.9669 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03643/2.487, allocations: 19.36 MB / 1.378 GB, free: 33.29 MB / 0.9669 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 0.1271/2.614, allocations: 77.53 MB / 1.454 GB, free: 3.383 MB / 0.9825 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0174/2.631, allocations: 10.61 MB / 1.464 GB, free: 412 kB / 0.9825 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0146/2.646, allocations: 9.133 MB / 1.473 GB, free: 11.08 MB / 0.9982 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 evalFunc (simulation): time 0.07342/2.72, allocations: 32.74 MB / 1.505 GB, free: 1.648 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01635/2.736, allocations: 8.848 MB / 1.513 GB, free: 11.7 MB / 1.029 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.03392/2.77, allocations: 9.848 MB / 1.523 GB, free: 2.531 MB / 1.029 GB Notification: Performance of pre-optimization done (n=421): time 4.324e-05/2.77, allocations: 0 / 1.523 GB, free: 2.531 MB / 1.029 GB Notification: Performance of matching and sorting (n=605): time 1.23/4, allocations: 197.2 MB / 1.716 GB, free: 0.5066 GB / 1.186 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001038/4.001, allocations: 121.3 kB / 1.716 GB, free: 0.5065 GB / 1.186 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02684/4.027, allocations: 13.02 MB / 1.728 GB, free: 0.5033 GB / 1.186 GB Notification: Performance of collectPreVariables (initialization): time 0.003714/4.031, allocations: 181.3 kB / 1.729 GB, free: 0.5032 GB / 1.186 GB Notification: Performance of collectInitialEqns (initialization): time 0.008087/4.039, allocations: 6.589 MB / 1.735 GB, free: 0.4994 GB / 1.186 GB Notification: Performance of collectInitialBindings (initialization): time 0.005112/4.044, allocations: 2.048 MB / 1.737 GB, free: 0.499 GB / 1.186 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.002054/4.046, allocations: 151.2 kB / 1.737 GB, free: 0.4989 GB / 1.186 GB Notification: Performance of setup shared object (initialization): time 0.0004393/4.047, allocations: 0.616 MB / 1.738 GB, free: 0.4984 GB / 1.186 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01595/4.063, allocations: 9.358 MB / 1.747 GB, free: 0.4952 GB / 1.186 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01951/4.082, allocations: 11.88 MB / 1.759 GB, free: 0.489 GB / 1.186 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01835/4.101, allocations: 10.27 MB / 1.769 GB, free: 496.7 MB / 1.186 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.158e-05/4.101, allocations: 12.25 kB / 1.769 GB, free: 496.7 MB / 1.186 GB Notification: Performance of matching and sorting (n=1029) (initialization): time 0.5133/4.614, allocations: 123.9 MB / 1.89 GB, free: 397.5 MB / 1.186 GB Notification: Performance of prepare postOptimizeDAE: time 0.0007615/4.615, allocations: 1.731 MB / 1.891 GB, free: 395 MB / 1.186 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.27e-05/4.615, allocations: 55.94 kB / 1.891 GB, free: 395 MB / 1.186 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.533/5.148, allocations: 143.5 MB / 2.031 GB, free: 251.3 MB / 1.186 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01032/5.159, allocations: 2.071 MB / 2.033 GB, free: 249.2 MB / 1.186 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1251/5.284, allocations: 78.78 MB / 2.11 GB, free: 170.1 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01861/5.302, allocations: 1.243 MB / 2.112 GB, free: 168.9 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.004335/5.307, allocations: 0.7855 MB / 2.112 GB, free: 168.1 MB / 1.186 GB Notification: Performance of prepare postOptimizeDAE: time 1.3e-05/5.307, allocations: 4 kB / 2.112 GB, free: 168.1 MB / 1.186 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.4966/5.803, allocations: 122.8 MB / 2.232 GB, free: 45.05 MB / 1.186 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001277/5.803, allocations: 52 kB / 2.232 GB, free: 45 MB / 1.186 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.9687/6.772, allocations: 143.3 MB / 2.372 GB, free: 463 MB / 1.186 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.009403/6.782, allocations: 2.061 MB / 2.374 GB, free: 461.1 MB / 1.186 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1301/6.912, allocations: 82.72 MB / 2.455 GB, free: 379.4 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01753/6.929, allocations: 1.233 MB / 2.456 GB, free: 378.3 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003701/6.933, allocations: 0.7529 MB / 2.457 GB, free: 377.5 MB / 1.186 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 237 * Number of states: 0 () * Number of discrete variables: 10 ($whenCondition1,$whenCondition2,stepPump.y,$PRE.stepPump.pulseStart,stepPump.pulseStart,pumpHea.stage,$PRE.stepValve.T_start,stepValve.T_start,$PRE.stepValve.count,stepValve.count) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (769): * Single equations (assignments): 755 * Array equations: 4 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 6 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 6 {1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(28,89.3%) 28} * Non-linear torn systems: 2 {5 80,5 80} Notification: Performance of prepare postOptimizeDAE: time 0.01102/6.944, allocations: 3.335 MB / 2.46 GB, free: 374.2 MB / 1.186 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.004071/6.948, allocations: 1.279 MB / 2.461 GB, free: 373.6 MB / 1.186 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.1667/7.115, allocations: 49.32 MB / 2.51 GB, free: 324.4 MB / 1.186 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001509/7.115, allocations: 72 kB / 2.51 GB, free: 324.3 MB / 1.186 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001157/7.115, allocations: 33.73 kB / 2.51 GB, free: 324.3 MB / 1.186 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.1505/7.266, allocations: 43.69 MB / 2.552 GB, free: 280.5 MB / 1.186 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 postOpt removeSimpleEquations (simulation): time 0.1776/7.443, allocations: 64.22 MB / 2.615 GB, free: 216.3 MB / 1.186 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.416e-05/7.443, allocations: 8 kB / 2.615 GB, free: 216.3 MB / 1.186 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00666/7.45, allocations: 1.393 MB / 2.617 GB, free: 214.9 MB / 1.186 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.1558/7.606, allocations: 42.77 MB / 2.658 GB, free: 172.1 MB / 1.186 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.002259/7.608, allocations: 199.9 kB / 2.658 GB, free: 171.9 MB / 1.186 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.05652/7.665, allocations: 35.58 MB / 2.693 GB, free: 136.2 MB / 1.186 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.083e-06/7.665, allocations: 8 kB / 2.693 GB, free: 136.2 MB / 1.186 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.1702/7.835, allocations: 56.37 MB / 2.748 GB, free: 79.84 MB / 1.186 GB Notification: Performance of postOpt removeConstants (simulation): time 0.01101/7.846, allocations: 2.849 MB / 2.751 GB, free: 76.98 MB / 1.186 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.005388/7.851, allocations: 128 kB / 2.751 GB, free: 76.85 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.01428/7.866, allocations: 1.065 MB / 2.752 GB, free: 75.81 MB / 1.186 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.002778/7.869, allocations: 498.4 kB / 2.753 GB, free: 75.32 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.001196/7.87, allocations: 303.8 kB / 2.753 GB, free: 75.02 MB / 1.186 GB Notification: Performance of sorting global known variables: time 0.01686/7.887, allocations: 8.806 MB / 2.762 GB, free: 66.29 MB / 1.186 GB Notification: Performance of sort global known variables: time 5.41e-07/7.887, allocations: 0 / 2.762 GB, free: 66.29 MB / 1.186 GB Notification: Performance of remove unused functions: time 0.04834/7.935, allocations: 7.312 MB / 2.769 GB, free: 59.1 MB / 1.186 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 27 * Number of states: 8 (valSouth.vol.dynBal.U,valNorth.vol.dynBal.U,spl.vol.dynBal.U,spl1.vol.dynBal.U,pumpHea.vol.dynBal.U,spl2.vol.dynBal.U,spl3.vol.dynBal.U,pumpCoo.vol.dynBal.U) * Number of discrete variables: 7 ($whenCondition2,$whenCondition1,stepPump.y,stepPump.pulseStart,pumpHea.stage,stepValve.T_start,stepValve.count) * Number of discrete states: 1 (stepValve.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (541): * Single equations (assignments): 519 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 3 * If-equations: 0 * Equation systems (linear and non-linear blocks): 5 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 5 {1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(28,89.3%) 28} * Non-linear torn systems: 3 {9 78,5 80,1 1} Notification: Performance of Backend phase and start with SimCode phase: time 0.005015/7.94, allocations: 1.542 MB / 2.77 GB, free: 57.77 MB / 1.186 GB Notification: Performance of simCode: created initialization part: time 0.07821/8.018, allocations: 37.73 MB / 2.807 GB, free: 19.97 MB / 1.186 GB Notification: Performance of simCode: created event and clocks part: time 1.383e-05/8.018, allocations: 4 kB / 2.807 GB, free: 19.97 MB / 1.186 GB Notification: Performance of simCode: created simulation system equations: time 0.4756/8.494, allocations: 10.65 MB / 2.817 GB, free: 0.4988 GB / 1.186 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.04372/8.538, allocations: 6.92 MB / 2.824 GB, free: 0.4987 GB / 1.186 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.06416/8.602, allocations: 33.13 MB / 2.857 GB, free: 498.9 MB / 1.186 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0108/8.613, allocations: 7.539 MB / 2.864 GB, free: 497.4 MB / 1.186 GB Notification: Performance of simCode: alias equations: time 0.0215/8.634, allocations: 4.057 MB / 2.868 GB, free: 497 MB / 1.186 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.005178/8.64, allocations: 1.044 MB / 2.869 GB, free: 496.9 MB / 1.186 GB Notification: Performance of SimCode: time 9.21e-07/8.64, allocations: 3.906 kB / 2.869 GB, free: 496.9 MB / 1.186 GB Notification: Performance of Templates: time 0.4883/9.128, allocations: 401.6 MB / 3.261 GB, free: 130.7 MB / 1.186 GB make -j1 -f Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4.makefile Environment - environmentSimulation: (rm -f Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4.pipe ; mkfifo Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4.pipe >> ../files/Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4.sim & ./Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.Examples.FlowSystem.Simplified4.pipe 2>&1) Environment - environmentSimulation: