Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo", uses=false) 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/PhotoVoltaics_TGM 2.0.0/package.mo", uses=false) Using package PhotoVoltaics_TGM with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/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) Using package PhotoVoltaics with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo) Running command: translateModel(PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808,tolerance=1e-08,outputFormat="empty",numberOfIntervals=2880,variableFilter="",fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808") translateModel(PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808,tolerance=1e-08,outputFormat="empty",numberOfIntervals=2880,variableFilter="",fileNamePrefix="PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo): time 0.03019/0.03019, allocations: 5.389 MB / 20.36 MB, free: 2.254 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0006997/0.0006997, allocations: 101.5 kB / 22.34 MB, free: 0.7773 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009576/0.0009576, allocations: 184.3 kB / 24.41 MB, free: 1.781 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.362/1.362, allocations: 223.3 MB / 249.6 MB, free: 13.8 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics_TGM 2.0.0/package.mo): time 0.008292/0.008292, allocations: 2.315 MB / 304.2 MB, free: 3.902 MB / 238.1 MB Warning: Ignoring unknown experiment annotation option: __Dymola_Algorithm = "Rkfix4" Notification: Performance of FrontEnd - loaded program: time 0.0003992/0.0003993, allocations: 12 kB / 368.2 MB, free: 10.6 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1135/0.1139, allocations: 52.2 MB / 420.4 MB, free: 6.348 MB / 350.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808): time 0.006489/0.1204, allocations: 5.892 MB / 426.3 MB, free: 440 kB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.2171/0.3375, allocations: 2.862 MB / 429.2 MB, free: 35.32 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008574/0.3384, allocations: 22.22 kB / 429.2 MB, free: 35.31 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001141/0.3396, allocations: 365.2 kB / 429.6 MB, free: 35.21 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001586/0.3412, allocations: 0.6778 MB / 430.2 MB, free: 35.04 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001137/0.3423, allocations: 416.5 kB / 430.7 MB, free: 35 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001152/0.3435, allocations: 1.209 MB / 431.9 MB, free: 34.73 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001872/0.3454, allocations: 1.236 MB / 433.1 MB, free: 34.49 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.000553/0.3459, allocations: 440.1 kB / 433.5 MB, free: 34.39 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0006432/0.3466, allocations: 0.5859 MB / 434.1 MB, free: 34.28 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001024/0.3467, allocations: 58.5 kB / 434.2 MB, free: 34.28 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0006687/0.3474, allocations: 329.3 kB / 434.5 MB, free: 34.26 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001333/0.3475, allocations: 199.7 kB / 434.7 MB, free: 34.21 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0002077/0.3477, allocations: 222.2 kB / 434.9 MB, free: 34.14 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.001148/0.3489, allocations: 1.294 MB / 436.2 MB, free: 34.04 MB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.238e-06/0.3489, allocations: 2.734 kB / 436.2 MB, free: 34.04 MB / 350.1 MB Notification: Performance of FrontEnd: time 1.472e-06/0.3489, allocations: 2.781 kB / 436.2 MB, free: 34.04 MB / 350.1 MB Notification: Performance of Transformations before backend: time 1.827e-05/0.3489, allocations: 0 / 436.2 MB, free: 34.04 MB / 350.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 270 * Number of variables: 270 Notification: Performance of Generate backend data structure: time 0.003171/0.3521, allocations: 1.552 MB / 437.8 MB, free: 33.21 MB / 350.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.465e-05/0.3522, allocations: 9.438 kB / 437.8 MB, free: 33.21 MB / 350.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001889/0.3541, allocations: 367.2 kB / 438.1 MB, free: 33.15 MB / 350.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001349/0.3554, allocations: 0.7429 MB / 438.9 MB, free: 32.82 MB / 350.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.282e-05/0.3555, allocations: 78.94 kB / 438.9 MB, free: 32.82 MB / 350.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001556/0.3557, allocations: 111.3 kB / 439.1 MB, free: 32.82 MB / 350.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001922/0.3576, allocations: 1.18 MB / 440.2 MB, free: 32.65 MB / 350.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.599e-05/0.3576, allocations: 0 / 440.2 MB, free: 32.65 MB / 350.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.25e-05/0.3577, allocations: 47.09 kB / 440.3 MB, free: 32.64 MB / 350.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.773e-05/0.3578, allocations: 25.09 kB / 440.3 MB, free: 32.64 MB / 350.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001914/0.3597, allocations: 1.033 MB / 441.3 MB, free: 32.63 MB / 350.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005296/0.365, allocations: 4.414 MB / 445.8 MB, free: 30.82 MB / 350.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.002416/0.3674, allocations: 1.78 MB / 447.5 MB, free: 29.71 MB / 350.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006554/0.3681, allocations: 363.9 kB / 447.9 MB, free: 29.7 MB / 350.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001261/0.3682, allocations: 175.4 kB / 448.1 MB, free: 29.5 MB / 350.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0008694/0.3691, allocations: 0.557 MB / 448.6 MB, free: 29.3 MB / 350.1 MB Notification: Performance of pre-optimization done (n=79): time 2.565e-06/0.3691, allocations: 0 / 448.6 MB, free: 29.3 MB / 350.1 MB Notification: Performance of matching and sorting (n=79): time 0.005498/0.3746, allocations: 1.754 MB / 450.4 MB, free: 28.91 MB / 350.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 8.215e-05/0.3747, allocations: 278.2 kB / 450.6 MB, free: 28.6 MB / 350.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006176/0.3754, allocations: 0.5519 MB / 451.2 MB, free: 28.33 MB / 350.1 MB Notification: Performance of collectPreVariables (initialization): time 5.174e-05/0.3754, allocations: 43.92 kB / 451.2 MB, free: 28.29 MB / 350.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002673/0.3757, allocations: 494.2 kB / 451.7 MB, free: 27.91 MB / 350.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001636/0.3759, allocations: 256.3 kB / 452 MB, free: 27.72 MB / 350.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 5.58e-05/0.3759, allocations: 23.22 kB / 452 MB, free: 27.7 MB / 350.1 MB Notification: Performance of setup shared object (initialization): time 8.551e-05/0.376, allocations: 379.6 kB / 452.4 MB, free: 27.36 MB / 350.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000651/0.3767, allocations: 326.3 kB / 452.7 MB, free: 27.25 MB / 350.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007241/0.3774, allocations: 0.5658 MB / 453.2 MB, free: 26.84 MB / 350.1 MB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: $PRE.irradiance.dayOfYear = PhotoVoltaics.Functions.dayOfTheYear(irradiance.startDay, irradiance.startMonth, irradiance.startYear) (/*Real*/(PhotoVoltaics.Functions.dayOfTheYear(irradiance.startDay, irradiance.startMonth, irradiance.startYear)) = PhotoVoltaics.Functions.dayOfTheYear(irradiance.startDay, irradiance.startMonth, irradiance.startYear)) Notification: Performance of analyzeInitialSystem (initialization): time 0.01475/0.3922, allocations: 2.815 MB / 456.1 MB, free: 26.18 MB / 350.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.658e-06/0.3922, allocations: 3.156 kB / 456.1 MB, free: 26.18 MB / 350.1 MB Notification: Performance of matching and sorting (n=133) (initialization): time 0.002313/0.3945, allocations: 1.203 MB / 457.3 MB, free: 25.64 MB / 350.1 MB Notification: Performance of prepare postOptimizeDAE: time 4.757e-05/0.3946, allocations: 94.58 kB / 457.4 MB, free: 25.54 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.241e-05/0.3946, allocations: 6.625 kB / 457.4 MB, free: 25.54 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004095/0.395, allocations: 92.28 kB / 457.5 MB, free: 25.53 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001028/0.3961, allocations: 261.9 kB / 457.7 MB, free: 25.5 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0011/0.3972, allocations: 1.468 MB / 459.2 MB, free: 24.09 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009302/0.3981, allocations: 118 kB / 459.3 MB, free: 24.02 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.084e-05/0.3982, allocations: 54.52 kB / 459.3 MB, free: 24.01 MB / 350.1 MB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization sytem: $PRE.irradiance.dayOfYear = PhotoVoltaics.Functions.dayOfTheYear(irradiance.startDay, irradiance.startMonth, irradiance.startYear). Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 32 * Number of states: 0 () * Number of discrete variables: 27 ($PRE.writeCSV.firstTrigger,writeCSV.firstTrigger,$PRE.irradiance.year,irradiance.year,$PRE.mpTracker.signv,mpTracker.signv,$PRE.mpTracker.firstTrigger,mpTracker.firstTrigger,$PRE.mpTracker.counter,mpTracker.counter,$whenCondition4,writeCSV.sampleTrigger,$whenCondition1,mpTracker.sampleTrigger,$whenCondition2,$whenCondition3,$PRE.mpTracker.vRef,mpTracker.vRef,$PRE.irradiance.startDayOfYear,irradiance.startDayOfYear,$PRE.irradiance.dayOfYear,irradiance.dayOfYear,$PRE.irradiance.daysOfYear,irradiance.daysOfYear,irradiance.localDays,integrator.local_reset,converter.integrator.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (129): * Single equations (assignments): 125 * Array equations: 0 * Algorithm blocks: 3 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 1 {2} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0005481/0.3988, allocations: 374.5 kB / 459.7 MB, free: 23.7 MB / 350.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001142/0.3989, allocations: 78.98 kB / 459.8 MB, free: 23.66 MB / 350.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00237/0.4013, allocations: 1.269 MB / 461.1 MB, free: 23.11 MB / 350.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.285e-06/0.4013, allocations: 8.719 kB / 461.1 MB, free: 23.11 MB / 350.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.925e-06/0.4013, allocations: 0 / 461.1 MB, free: 23.11 MB / 350.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.147e-05/0.4013, allocations: 3.469 kB / 461.1 MB, free: 23.11 MB / 350.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005631/0.407, allocations: 2.579 MB / 463.7 MB, free: 21.99 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.783e-06/0.407, allocations: 8.031 kB / 463.7 MB, free: 21.99 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005441/0.4076, allocations: 138.2 kB / 463.8 MB, free: 21.97 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006641/0.4082, allocations: 337.4 kB / 464.1 MB, free: 21.86 MB / 350.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.965e-05/0.4083, allocations: 33.8 kB / 464.2 MB, free: 21.85 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009998/0.4093, allocations: 0.8957 MB / 465.1 MB, free: 21.18 MB / 350.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.456e-06/0.4093, allocations: 0 / 465.1 MB, free: 21.18 MB / 350.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004961/0.4143, allocations: 1.957 MB / 467 MB, free: 20.37 MB / 350.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0003269/0.4146, allocations: 247.7 kB / 467.3 MB, free: 20.18 MB / 350.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001524/0.4148, allocations: 22.5 kB / 467.3 MB, free: 20.17 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006049/0.4154, allocations: 69.23 kB / 467.3 MB, free: 20.15 MB / 350.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.825e-05/0.4155, allocations: 54.58 kB / 467.4 MB, free: 20.14 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.883e-05/0.4156, allocations: 38.48 kB / 467.4 MB, free: 20.13 MB / 350.1 MB Notification: Performance of sorting global known variables: time 0.0004033/0.416, allocations: 384.8 kB / 467.8 MB, free: 19.95 MB / 350.1 MB Notification: Performance of sort global known variables: time 7.21e-07/0.416, allocations: 0 / 467.8 MB, free: 19.95 MB / 350.1 MB Notification: Performance of remove unused functions: time 0.00102/0.417, allocations: 349.2 kB / 468.1 MB, free: 19.86 MB / 350.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 3 (converter.integrator.y,integrator.y,voltageSource.pin_p.reference.gamma) * Number of discrete variables: 16 ($whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,mpTracker.firstTrigger,mpTracker.sampleTrigger,mpTracker.counter,mpTracker.signv,mpTracker.vRef,irradiance.startDayOfYear,irradiance.dayOfYear,irradiance.daysOfYear,irradiance.year,irradiance.localDays,writeCSV.sampleTrigger,writeCSV.firstTrigger) * Number of discrete states: 16 (irradiance.daysOfYear,irradiance.year,irradiance.startDayOfYear,$whenCondition3,irradiance.dayOfYear,$whenCondition2,mpTracker.signv,mpTracker.vRef,mpTracker.firstTrigger,mpTracker.counter,$whenCondition1,mpTracker.sampleTrigger,mpTracker.power,writeCSV.firstTrigger,$whenCondition4,writeCSV.sampleTrigger) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (80): * Single equations (assignments): 77 * 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 {1 4} Notification: Performance of Backend phase and start with SimCode phase: time 0.000748/0.4178, allocations: 360.3 kB / 468.5 MB, free: 19.72 MB / 350.1 MB Notification: Performance of simCode: created initialization part: time 0.002143/0.4199, allocations: 1.154 MB / 469.7 MB, free: 19.13 MB / 350.1 MB Notification: Performance of simCode: created event and clocks part: time 4.849e-06/0.42, allocations: 4.062 kB / 469.7 MB, free: 19.13 MB / 350.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001027/0.421, allocations: 0.6591 MB / 470.3 MB, free: 18.76 MB / 350.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007925/0.4218, allocations: 133 kB / 470.4 MB, free: 18.71 MB / 350.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003593/0.4254, allocations: 2.226 MB / 472.7 MB, free: 17.38 MB / 350.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006025/0.426, allocations: 1.012 MB / 473.7 MB, free: 16.66 MB / 350.1 MB Notification: Performance of simCode: alias equations: time 0.0006518/0.4267, allocations: 126 kB / 473.8 MB, free: 16.62 MB / 350.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002646/0.427, allocations: 89.64 kB / 473.9 MB, free: 16.6 MB / 350.1 MB Notification: Performance of SimCode: time 8.31e-07/0.427, allocations: 0 / 473.9 MB, free: 16.6 MB / 350.1 MB Notification: Performance of Templates: time 0.02541/0.4524, allocations: 11.69 MB / 485.6 MB, free: 14.22 MB / 350.1 MB make -j1 -f PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808.makefile Environment - environmentSimulation: (rm -f PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808.pipe ; mkfifo PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808.pipe ; head -c 1048576 < PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808.pipe >> ../files/PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808.sim & ./PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808 -abortSlowSimulation -alarm=480 -lv LOG_STATS > PhotoVoltaics_TGM_PhotoVoltaics_TGM.TGM_Trina_Analytical_20160808.pipe 2>&1) Environment - environmentSimulation: