Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.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 7.0.3-maint.7.0.x/package.mo", uses=false)
Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.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.Actuators.Dampers.Examples.VAVBoxExponential,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential")
translateModel(Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001054/0.001054, allocations: 100.5 kB / 15.05 MB, free: 1.105 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001283/0.001283, allocations: 177.3 kB / 15.94 MB, free: 228 kB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.776/1.776, allocations: 205.4 MB / 222.1 MB, free: 5.652 MB / 174.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.724/1.724, allocations: 251.9 MB / 0.51 GB, free: 4.879 MB / 414.1 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 0.0006475/0.0006479, allocations: 20 kB / 0.6241 GB, free: 1.207 MB / 0.5137 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.6612/0.6618, allocations: 106.3 MB / 0.728 GB, free: 11.46 MB / 0.545 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential): time 0.1914/0.8533, allocations: 146.2 MB / 0.8707 GB, free: 8.93 MB / 0.6856 GB
Notification: Performance of NFInst.instExpressions: time 0.01095/0.8643, allocations: 5.942 MB / 0.8765 GB, free: 2.977 MB / 0.6856 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.000844/0.8652, allocations: 19.81 kB / 0.8765 GB, free: 2.957 MB / 0.6856 GB
Notification: Performance of NFTyping.typeComponents: time 0.001321/0.8665, allocations: 410.2 kB / 0.8769 GB, free: 2.555 MB / 0.6856 GB
Notification: Performance of NFTyping.typeBindings: time 0.003191/0.8697, allocations: 1.081 MB / 0.878 GB, free: 1.473 MB / 0.6856 GB
Notification: Performance of NFTyping.typeClassSections: time 0.005303/0.875, allocations: 1.802 MB / 0.8797 GB, free: 15.69 MB / 0.7012 GB
Notification: Performance of NFFlatten.flatten: time 0.002136/0.8772, allocations: 1.02 MB / 0.8807 GB, free: 14.67 MB / 0.7012 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0008339/0.878, allocations: 0.5118 MB / 0.8812 GB, free: 14.14 MB / 0.7012 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001479/0.8795, allocations: 0.6542 MB / 0.8819 GB, free: 13.48 MB / 0.7012 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0005676/0.8801, allocations: 430.2 kB / 0.8823 GB, free: 13.06 MB / 0.7012 GB
Notification: Performance of NFPackage.collectConstants: time 8.918e-05/0.8802, allocations: 32 kB / 0.8823 GB, free: 13.03 MB / 0.7012 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001912/0.8821, allocations: 0.8034 MB / 0.8831 GB, free: 12.23 MB / 0.7012 GB
Notification: Performance of NFScalarize.scalarize: time 0.0002685/0.8824, allocations: 227.2 kB / 0.8833 GB, free: 12 MB / 0.7012 GB
Notification: Performance of NFVerifyModel.verify: time 0.000197/0.8826, allocations: 173.2 kB / 0.8835 GB, free: 11.83 MB / 0.7012 GB
Notification: Performance of NFConvertDAE.convert: time 0.001276/0.8839, allocations: 0.9704 MB / 0.8844 GB, free: 10.86 MB / 0.7012 GB
Notification: Performance of FrontEnd - DAE generated: time 6.954e-06/0.8839, allocations: 4 kB / 0.8844 GB, free: 10.85 MB / 0.7012 GB
Notification: Performance of FrontEnd: time 2.214e-06/0.8839, allocations: 3.938 kB / 0.8844 GB, free: 10.85 MB / 0.7012 GB
Notification: Performance of Transformations before backend: time 1.067e-05/0.8839, allocations: 0 / 0.8844 GB, free: 10.85 MB / 0.7012 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 91
 * Number of variables: 91
Notification: Performance of Generate backend data structure: time 0.002667/0.8866, allocations: 1.19 MB / 0.8856 GB, free: 9.609 MB / 0.7012 GB
Notification: Performance of prepare preOptimizeDAE: time 4.848e-05/0.8867, allocations: 12.03 kB / 0.8856 GB, free: 9.598 MB / 0.7012 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006309/0.8873, allocations: 142.8 kB / 0.8857 GB, free: 9.457 MB / 0.7012 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001419/0.8887, allocations: 0.7059 MB / 0.8864 GB, free: 8.711 MB / 0.7012 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.094e-05/0.8888, allocations: 33 kB / 0.8865 GB, free: 8.676 MB / 0.7012 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 9.947e-05/0.8889, allocations: 56 kB / 0.8865 GB, free: 8.621 MB / 0.7012 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009262/0.8898, allocations: 0.4993 MB / 0.887 GB, free: 8.09 MB / 0.7012 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.628e-05/0.8899, allocations: 0 / 0.887 GB, free: 8.09 MB / 0.7012 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.725e-05/0.8899, allocations: 16 kB / 0.887 GB, free: 8.074 MB / 0.7012 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.232e-05/0.89, allocations: 11.95 kB / 0.887 GB, free: 8.062 MB / 0.7012 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007263/0.8907, allocations: 362.3 kB / 0.8874 GB, free: 7.703 MB / 0.7012 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 0.002962/0.8937, allocations: 1.939 MB / 0.8893 GB, free: 5.621 MB / 0.7012 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0007877/0.8945, allocations: 366.8 kB / 0.8896 GB, free: 5.254 MB / 0.7012 GB
Notification: Performance of preOpt evalFunc (simulation): time 7.66e-05/0.8946, allocations: 15.97 kB / 0.8896 GB, free: 5.238 MB / 0.7012 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.686e-05/0.8946, allocations: 38.56 kB / 0.8897 GB, free: 5.191 MB / 0.7012 GB
Notification: Performance of pre-optimization done (n=26): time 2.234e-06/0.8946, allocations: 0 / 0.8897 GB, free: 5.191 MB / 0.7012 GB
Notification: Performance of matching and sorting (n=26): time 0.002183/0.8968, allocations: 0.699 MB / 0.8904 GB, free: 4.465 MB / 0.7012 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001312/0.8969, allocations: 213.6 kB / 0.8906 GB, free: 4.207 MB / 0.7012 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001391/0.8983, allocations: 0.9114 MB / 0.8914 GB, free: 3.281 MB / 0.7012 GB
Notification: Performance of collectPreVariables (initialization): time 6.911e-05/0.8984, allocations: 41.7 kB / 0.8915 GB, free: 3.234 MB / 0.7012 GB
Notification: Performance of collectInitialEqns (initialization): time 0.000304/0.8987, allocations: 356.6 kB / 0.8918 GB, free: 2.883 MB / 0.7012 GB
Notification: Performance of collectInitialBindings (initialization): time 8.128e-05/0.8988, allocations: 98.58 kB / 0.8919 GB, free: 2.785 MB / 0.7012 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 1.936e-05/0.8989, allocations: 8 kB / 0.8919 GB, free: 2.777 MB / 0.7012 GB
Notification: Performance of setup shared object (initialization): time 0.0001294/0.899, allocations: 318 kB / 0.8922 GB, free: 2.461 MB / 0.7012 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.000327/0.8993, allocations: 160.2 kB / 0.8924 GB, free: 2.305 MB / 0.7012 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004887/0.8998, allocations: 363.5 kB / 0.8927 GB, free: 1.867 MB / 0.7012 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003796/0.9002, allocations: 196.4 kB / 0.8929 GB, free: 1.676 MB / 0.7012 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.038e-06/0.9002, allocations: 4 kB / 0.8929 GB, free: 1.672 MB / 0.7012 GB
Notification: Performance of matching and sorting (n=38) (initialization): time 0.001153/0.9014, allocations: 0.5363 MB / 0.8934 GB, free: 1.125 MB / 0.7012 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0001319/0.9015, allocations: 270.8 kB / 0.8937 GB, free: 0.8398 MB / 0.7012 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.329e-05/0.9016, allocations: 11.98 kB / 0.8937 GB, free: 0.8281 MB / 0.7012 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0003728/0.9019, allocations: 60.8 kB / 0.8938 GB, free: 0.7656 MB / 0.7012 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005261/0.9025, allocations: 95.84 kB / 0.8939 GB, free: 0.6719 MB / 0.7012 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007633/0.9033, allocations: 1.166 MB / 0.895 GB, free: 15.46 MB / 0.7169 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009252/0.9042, allocations: 107.7 kB / 0.8951 GB, free: 15.35 MB / 0.7169 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.45e-05/0.9042, allocations: 11.98 kB / 0.8951 GB, free: 15.34 MB / 0.7169 GB
Notification: Performance of prepare postOptimizeDAE: time 1.082e-05/0.9043, allocations: 4 kB / 0.8951 GB, free: 15.34 MB / 0.7169 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0008585/0.9051, allocations: 416.5 kB / 0.8955 GB, free: 14.93 MB / 0.7169 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.209e-05/0.9052, allocations: 4 kB / 0.8955 GB, free: 14.92 MB / 0.7169 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0001554/0.9053, allocations: 48.77 kB / 0.8956 GB, free: 14.87 MB / 0.7169 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003687/0.9057, allocations: 71.94 kB / 0.8956 GB, free: 14.8 MB / 0.7169 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001439/0.9072, allocations: 1.487 MB / 0.8971 GB, free: 13.18 MB / 0.7169 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001015/0.9082, allocations: 106.7 kB / 0.8972 GB, free: 13.08 MB / 0.7169 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.149e-05/0.9082, allocations: 15.94 kB / 0.8972 GB, free: 13.07 MB / 0.7169 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 3
 * 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 (31):
 * Single equations (assignments): 25
 * Array equations: 2
 * Algorithm blocks: 0
 * Record equations: 2
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 1
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 1 {1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 1 {1 3}
Notification: Performance of prepare postOptimizeDAE: time 0.0004717/0.9087, allocations: 293 kB / 0.8975 GB, free: 12.77 MB / 0.7169 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001408/0.9089, allocations: 82.97 kB / 0.8976 GB, free: 12.69 MB / 0.7169 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001016/0.9099, allocations: 481.9 kB / 0.898 GB, free: 12.2 MB / 0.7169 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.213e-06/0.9099, allocations: 8 kB / 0.898 GB, free: 12.2 MB / 0.7169 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.944e-06/0.9099, allocations: 0 / 0.898 GB, free: 12.2 MB / 0.7169 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.158e-06/0.9099, allocations: 0 / 0.898 GB, free: 12.2 MB / 0.7169 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002064/0.912, allocations: 1.222 MB / 0.8992 GB, free: 10.89 MB / 0.7169 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.26e-06/0.912, allocations: 4 kB / 0.8992 GB, free: 10.89 MB / 0.7169 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000364/0.9124, allocations: 67.89 kB / 0.8993 GB, free: 10.82 MB / 0.7169 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0001311/0.9125, allocations: 40.98 kB / 0.8993 GB, free: 10.78 MB / 0.7169 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.011e-05/0.9126, allocations: 11.98 kB / 0.8993 GB, free: 10.77 MB / 0.7169 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0006071/0.9132, allocations: 1.146 MB / 0.9005 GB, free: 9.574 MB / 0.7169 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.531e-06/0.9132, allocations: 7.984 kB / 0.9005 GB, free: 9.566 MB / 0.7169 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00129/0.9145, allocations: 0.8189 MB / 0.9013 GB, free: 8.672 MB / 0.7169 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0003445/0.9148, allocations: 212 kB / 0.9015 GB, free: 8.445 MB / 0.7169 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001034/0.915, allocations: 16 kB / 0.9015 GB, free: 8.43 MB / 0.7169 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000668/0.9156, allocations: 51.94 kB / 0.9015 GB, free: 8.379 MB / 0.7169 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 8.161e-05/0.9157, allocations: 27.89 kB / 0.9016 GB, free: 8.352 MB / 0.7169 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.838e-05/0.9158, allocations: 19.94 kB / 0.9016 GB, free: 8.332 MB / 0.7169 GB
Notification: Performance of sorting global known variables: time 0.0009427/0.9167, allocations: 0.6591 MB / 0.9022 GB, free: 7.68 MB / 0.7169 GB
Notification: Performance of sort global known variables: time 1.6e-07/0.9167, allocations: 0 / 0.9022 GB, free: 7.68 MB / 0.7169 GB
Notification: Performance of remove unused functions: time 0.001149/0.9179, allocations: 355.4 kB / 0.9026 GB, free: 7.332 MB / 0.7169 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 7
 * Number of states: 4 (dam.filter.x[1],dam.filter.x[2],vav.filter.x[1],vav.filter.x[2])
 * 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 (25):
 * Single equations (assignments): 23
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 1
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 1 {1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 1 {1 3}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0006451/0.9185, allocations: 241.9 kB / 0.9028 GB, free: 7.094 MB / 0.7169 GB
Notification: Performance of simCode: created initialization part: time 0.001844/0.9204, allocations: 0.8322 MB / 0.9036 GB, free: 6.227 MB / 0.7169 GB
Notification: Performance of simCode: created event and clocks part: time 4.469e-06/0.9204, allocations: 3.938 kB / 0.9036 GB, free: 6.223 MB / 0.7169 GB
Notification: Performance of simCode: created simulation system equations: time 0.0004512/0.9209, allocations: 200.1 kB / 0.9038 GB, free: 6.027 MB / 0.7169 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001628/0.9225, allocations: 319.2 kB / 0.9041 GB, free: 5.715 MB / 0.7169 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002128/0.9246, allocations: 1.483 MB / 0.9056 GB, free: 4.184 MB / 0.7169 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005846/0.9252, allocations: 0.9804 MB / 0.9065 GB, free: 3.176 MB / 0.7169 GB
Notification: Performance of simCode: alias equations: time 0.0007609/0.926, allocations: 185.3 kB / 0.9067 GB, free: 2.992 MB / 0.7169 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001883/0.9262, allocations: 55.42 kB / 0.9067 GB, free: 2.938 MB / 0.7169 GB
Notification: Performance of SimCode: time 1.392e-06/0.9262, allocations: 0 / 0.9067 GB, free: 2.938 MB / 0.7169 GB
Notification: Performance of Templates: time 0.4501/1.376, allocations: 14.39 MB / 0.9208 GB, free: 176.8 MB / 0.7169 GB
make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.makefile
Environment - environmentSimulation:
(rm -f Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential  -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.Actuators.Dampers.Examples.VAVBoxExponential.pipe 2>&1)
Environment - environmentSimulation: