Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth.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.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth") translateModel(Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008183/0.0008184, allocations: 86.72 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 0.001074/0.001074, 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 1.299/1.299, allocations: 205.4 MB / 222.1 MB, free: 5.637 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 1.621/1.621, allocations: 292.7 MB / 0.5499 GB, free: 14.54 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 0.0005084/0.0005086, allocations: 12.88 kB / 0.6737 GB, free: 26.18 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2153/0.2158, allocations: 116.3 MB / 0.7873 GB, free: 11.93 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth): time 0.00485/0.2207, allocations: 3.627 MB / 0.7908 GB, free: 8.281 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.5784/0.7992, allocations: 136.5 MB / 0.9241 GB, free: 5.438 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005954/0.7998, allocations: 16.72 kB / 0.9242 GB, free: 5.438 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.000476/0.8003, allocations: 129.7 kB / 0.9243 GB, free: 5.434 MB / 0.7169 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getHeaderElementTMY3.mo:2:1-105:25:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘ contains a call to impure function ‘Modelica.Utilities.Streams.readLine‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getLongitudeTMY3.mo:2:1-48:21:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLongitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getLatitudeTMY3.mo:2:1-48:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLatitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/BoundaryConditions/WeatherData/BaseClasses/getTimeZoneTMY3.mo:2:1-47:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getTimeZoneTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. Notification: Performance of NFTyping.typeBindings: time 0.001196/0.8015, allocations: 357.8 kB / 0.9246 GB, free: 5.414 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.001792/0.8033, allocations: 0.6152 MB / 0.9252 GB, free: 5.383 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.0009745/0.8043, allocations: 1.05 MB / 0.9262 GB, free: 5.344 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000658/0.8049, allocations: 474 kB / 0.9267 GB, free: 5.25 MB / 0.7169 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004423/0.8054, allocations: 310.6 kB / 0.927 GB, free: 5.168 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000396/0.8058, allocations: 331.9 kB / 0.9273 GB, free: 5.078 MB / 0.7169 GB Notification: Performance of NFPackage.collectConstants: time 6.552e-05/0.8059, allocations: 20.12 kB / 0.9273 GB, free: 5.078 MB / 0.7169 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0006756/0.8065, allocations: 281.6 kB / 0.9276 GB, free: 5.066 MB / 0.7169 GB Notification: Performance of NFScalarize.scalarize: time 0.0001983/0.8068, allocations: 170.6 kB / 0.9278 GB, free: 5.027 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.0003775/0.8071, allocations: 181.3 kB / 0.9279 GB, free: 20.96 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.00126/0.8084, allocations: 1.05 MB / 0.929 GB, free: 20.88 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 5.941e-06/0.8084, allocations: 3.938 kB / 0.929 GB, free: 20.88 MB / 0.7325 GB Notification: Performance of FrontEnd: time 1.453e-06/0.8084, allocations: 0 / 0.929 GB, free: 20.88 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 1.711e-05/0.8085, allocations: 4 kB / 0.929 GB, free: 20.88 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 203 * Number of variables: 203 Notification: Performance of Generate backend data structure: time 0.001902/0.8104, allocations: 1.148 MB / 0.9301 GB, free: 20.16 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 3.522e-05/0.8104, allocations: 8.625 kB / 0.9301 GB, free: 20.16 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007836/0.8112, allocations: 191 kB / 0.9303 GB, free: 20.09 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009176/0.8121, allocations: 0.6838 MB / 0.9309 GB, free: 19.79 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.506e-05/0.8122, allocations: 70.08 kB / 0.931 GB, free: 19.79 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.536e-05/0.8123, allocations: 75.66 kB / 0.9311 GB, free: 19.79 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001315/0.8136, allocations: 0.8792 MB / 0.9319 GB, free: 19.63 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.732e-05/0.8137, allocations: 0 / 0.9319 GB, free: 19.63 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.03e-05/0.8137, allocations: 34.97 kB / 0.932 GB, free: 19.63 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.671e-05/0.8137, allocations: 19.56 kB / 0.932 GB, free: 19.63 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001506/0.8153, allocations: 1.097 MB / 0.9331 GB, free: 19.61 MB / 0.7325 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003323/0.8186, allocations: 2.428 MB / 0.9354 GB, free: 18.81 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001929/0.8205, allocations: 0.8782 MB / 0.9363 GB, free: 18.66 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005392/0.8211, allocations: 297 kB / 0.9366 GB, free: 18.65 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 8.171e-05/0.8212, allocations: 35.75 kB / 0.9366 GB, free: 18.65 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0008015/0.822, allocations: 455.1 kB / 0.937 GB, free: 18.57 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=76): time 2.604e-06/0.822, allocations: 0 / 0.937 GB, free: 18.57 MB / 0.7325 GB Notification: Performance of matching and sorting (n=76): time 0.002875/0.8249, allocations: 1.132 MB / 0.9381 GB, free: 18.36 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.364e-05/0.825, allocations: 192.8 kB / 0.9383 GB, free: 18.14 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0008196/0.8258, allocations: 0.5771 MB / 0.9389 GB, free: 18.02 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 7.743e-05/0.8259, allocations: 39.77 kB / 0.9389 GB, free: 17.98 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003087/0.8262, allocations: 372.2 kB / 0.9393 GB, free: 17.8 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001861/0.8264, allocations: 259.2 kB / 0.9395 GB, free: 17.64 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 4.051e-05/0.8265, allocations: 12.44 kB / 0.9395 GB, free: 17.64 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.0001815/0.8267, allocations: 383.5 kB / 0.9399 GB, free: 17.33 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005736/0.8272, allocations: 252.8 kB / 0.9402 GB, free: 17.32 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006628/0.8279, allocations: 339.4 kB / 0.9405 GB, free: 17.27 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006463/0.8286, allocations: 296.7 kB / 0.9408 GB, free: 17.26 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.627e-06/0.8286, allocations: 0.5625 kB / 0.9408 GB, free: 17.26 MB / 0.7325 GB Notification: Performance of matching and sorting (n=89) (initialization): time 0.001749/0.8303, allocations: 0.8188 MB / 0.9416 GB, free: 17.14 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 2.229e-05/0.8304, allocations: 6 kB / 0.9416 GB, free: 17.14 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.518e-06/0.8304, allocations: 1.125 kB / 0.9416 GB, free: 17.14 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005334/0.8309, allocations: 86.47 kB / 0.9417 GB, free: 17.13 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006146/0.8315, allocations: 153.9 kB / 0.9418 GB, free: 17.12 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001914/0.8335, allocations: 1.523 MB / 0.9433 GB, free: 15.82 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006654/0.8341, allocations: 84.09 kB / 0.9434 GB, free: 15.79 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.324e-05/0.8342, allocations: 38.91 kB / 0.9434 GB, free: 15.79 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 8 ($whenCondition2,$whenCondition1,$PRE.weaDat.conTimMin.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTim.tNext,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.canRepeatWeatherFile) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (87): * Single equations (assignments): 86 * Array equations: 0 * Algorithm blocks: 0 * 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 {1 2} Notification: Performance of prepare postOptimizeDAE: time 0.0005089/0.8347, allocations: 263.8 kB / 0.9437 GB, free: 15.66 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001208/0.8349, allocations: 83.8 kB / 0.9437 GB, free: 15.61 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002273/0.8372, allocations: 1.082 MB / 0.9448 GB, free: 15.47 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.097e-06/0.8372, allocations: 10.06 kB / 0.9448 GB, free: 15.47 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.905e-06/0.8372, allocations: 0 / 0.9448 GB, free: 15.47 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.009e-05/0.8372, allocations: 4.344 kB / 0.9448 GB, free: 15.47 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003076/0.8403, allocations: 1.954 MB / 0.9467 GB, free: 15.09 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.007e-06/0.8403, allocations: 4 kB / 0.9467 GB, free: 15.08 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006127/0.8409, allocations: 159.3 kB / 0.9469 GB, free: 15.07 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004272/0.8414, allocations: 84.38 kB / 0.9469 GB, free: 15.06 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.045e-05/0.8414, allocations: 27.36 kB / 0.947 GB, free: 15.06 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00167/0.8431, allocations: 1.541 MB / 0.9485 GB, free: 13.75 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.123e-06/0.8431, allocations: 4.062 kB / 0.9485 GB, free: 13.75 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001844/0.845, allocations: 0.9651 MB / 0.9494 GB, free: 13.53 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000354/0.8453, allocations: 284.9 kB / 0.9497 GB, free: 13.38 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001021/0.8454, allocations: 17.25 kB / 0.9497 GB, free: 13.38 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005375/0.846, allocations: 73.58 kB / 0.9498 GB, free: 13.37 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001409/0.8461, allocations: 66.09 kB / 0.9498 GB, free: 13.37 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.699e-05/0.8462, allocations: 30.94 kB / 0.9499 GB, free: 13.37 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.0006046/0.8468, allocations: 427 kB / 0.9503 GB, free: 13.28 MB / 0.7325 GB Notification: Performance of sort global known variables: time 3.91e-07/0.8468, allocations: 4 kB / 0.9503 GB, free: 13.28 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.001/0.8478, allocations: 292.2 kB / 0.9506 GB, free: 13.23 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of discrete states: 2 (weaDat.conTim.tNext,weaDat.conTimMin.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (93): * Single equations (assignments): 90 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 {1 3} Notification: Performance of Backend phase and start with SimCode phase: time 0.001183/0.849, allocations: 0.5687 MB / 0.9511 GB, free: 13 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.001625/0.8507, allocations: 0.806 MB / 0.9519 GB, free: 12.85 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 4.218e-06/0.8507, allocations: 0 / 0.9519 GB, free: 12.85 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.0008651/0.8515, allocations: 0.5014 MB / 0.9524 GB, free: 12.72 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001127/0.8527, allocations: 258.2 kB / 0.9526 GB, free: 12.71 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003723/0.8564, allocations: 2.125 MB / 0.9547 GB, free: 11.73 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005869/0.857, allocations: 1.013 MB / 0.9557 GB, free: 11.02 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.0008604/0.8579, allocations: 265.7 kB / 0.956 GB, free: 10.93 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002404/0.8581, allocations: 102.6 kB / 0.9561 GB, free: 10.93 MB / 0.7325 GB Notification: Performance of SimCode: time 1.182e-06/0.8581, allocations: 0 / 0.9561 GB, free: 10.93 MB / 0.7325 GB Notification: Performance of Templates: time 0.02016/0.8783, allocations: 12.99 MB / 0.9688 GB, free: 5.988 MB / 0.7325 GB make -j1 -f Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth.makefile Environment - environmentSimulation: (rm -f Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth.pipe ; mkfifo Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth.pipe ; head -c 1048576 < Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth.pipe >> ../files/Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth.sim & ./Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.BoundaryConditions.SolarGeometry.BaseClasses.Examples.SolarAzimuth.pipe 2>&1) Environment - environmentSimulation: