Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u.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: "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u,fileNamePrefix="Buildings_8_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_SetPoints_Validation_Supply_u",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u,fileNamePrefix="Buildings_8_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_SetPoints_Validation_Supply_u",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 0.0007948/0.0007948, 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/Complex 4.0.0+maint.om/package.mo): time 0.0007655/0.0007655, allocations: 172.7 kB / 15.95 MB, free: 208 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.297/1.297, 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 8.1.4-maint.8.1.x/package.mo): time 1.526/1.526, allocations: 292.7 MB / 0.5499 GB, free: 14.53 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 0.0004954/0.0004956, allocations: 15.16 kB / 0.6739 GB, free: 26.02 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2066/0.2071, allocations: 116.3 MB / 0.7875 GB, free: 11.74 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u): time 0.003478/0.2106, allocations: 3.605 MB / 0.791 GB, free: 8.129 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.003098/0.2137, allocations: 2.131 MB / 0.7931 GB, free: 5.98 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007409/0.2145, allocations: 31.88 kB / 0.7931 GB, free: 5.949 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.0002757/0.2148, allocations: 102.8 kB / 0.7932 GB, free: 5.848 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.0005326/0.2153, allocations: 103 kB / 0.7933 GB, free: 5.746 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.001065/0.2164, allocations: 494.1 kB / 0.7938 GB, free: 5.266 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.00173/0.2181, allocations: 1.636 MB / 0.7954 GB, free: 3.629 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0009959/0.2191, allocations: 0.6929 MB / 0.796 GB, free: 2.902 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004874/0.2196, allocations: 417.8 kB / 0.7964 GB, free: 2.492 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005477/0.2202, allocations: 0.5397 MB / 0.797 GB, free: 1.949 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 0.0001699/0.2204, allocations: 55.94 kB / 0.797 GB, free: 1.895 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.000123/0.2205, allocations: 56 kB / 0.7971 GB, free: 1.84 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0001766/0.2207, allocations: 234.8 kB / 0.7973 GB, free: 1.609 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0001925/0.2209, allocations: 264.8 kB / 0.7976 GB, free: 1.344 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.001506/0.2224, allocations: 2.162 MB / 0.7997 GB, free: 15.18 MB / 0.6231 GB Notification: Performance of FrontEnd - DAE generated: time 5.44e-06/0.2224, allocations: 0 / 0.7997 GB, free: 15.18 MB / 0.6231 GB Notification: Performance of FrontEnd: time 1.473e-06/0.2224, allocations: 4 kB / 0.7997 GB, free: 15.17 MB / 0.6231 GB Notification: Performance of Transformations before backend: time 5.496e-05/0.2225, allocations: 0 / 0.7997 GB, free: 15.17 MB / 0.6231 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 403 * Number of variables: 403 Notification: Performance of Generate backend data structure: time 0.002933/0.2254, allocations: 1.745 MB / 0.8014 GB, free: 13.37 MB / 0.6231 GB Notification: Performance of prepare preOptimizeDAE: time 3.91e-05/0.2255, allocations: 12.02 kB / 0.8014 GB, free: 13.36 MB / 0.6231 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003032/0.2258, allocations: 232.1 kB / 0.8016 GB, free: 13.12 MB / 0.6231 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002551/0.226, allocations: 185.8 kB / 0.8018 GB, free: 12.93 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001461/0.2275, allocations: 1.001 MB / 0.8028 GB, free: 11.89 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.376e-05/0.2276, allocations: 119.2 kB / 0.8029 GB, free: 11.77 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001647/0.2278, allocations: 152 kB / 0.803 GB, free: 11.62 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002376/0.2301, allocations: 1.432 MB / 0.8044 GB, free: 10.18 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.568e-05/0.2302, allocations: 0 / 0.8044 GB, free: 10.18 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001062/0.2303, allocations: 68 kB / 0.8045 GB, free: 10.11 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.559e-05/0.2303, allocations: 36 kB / 0.8045 GB, free: 10.07 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002423/0.2328, allocations: 1.375 MB / 0.8059 GB, free: 8.695 MB / 0.6231 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005179/0.2379, allocations: 3.717 MB / 0.8095 GB, free: 4.914 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002063/0.24, allocations: 1.13 MB / 0.8106 GB, free: 3.777 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009092/0.2409, allocations: 0.5426 MB / 0.8111 GB, free: 3.234 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 7.171e-05/0.241, allocations: 24.97 kB / 0.8112 GB, free: 3.211 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.191e-05/0.2411, allocations: 51.55 kB / 0.8112 GB, free: 3.148 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=125): time 2.805e-06/0.2411, allocations: 0 / 0.8112 GB, free: 3.148 MB / 0.6231 GB Notification: Performance of matching and sorting (n=125): time 0.002824/0.2439, allocations: 1.502 MB / 0.8127 GB, free: 1.645 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.156e-05/0.244, allocations: 68.52 kB / 0.8127 GB, free: 1.566 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00124/0.2452, allocations: 0.9781 MB / 0.8137 GB, free: 0.5742 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 6.621e-05/0.2453, allocations: 45.7 kB / 0.8137 GB, free: 0.5234 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004563/0.2458, allocations: 0.6829 MB / 0.8144 GB, free: 15.83 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002584/0.246, allocations: 417.8 kB / 0.8148 GB, free: 15.41 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 5.46e-05/0.2461, allocations: 28 kB / 0.8148 GB, free: 15.39 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001091/0.2462, allocations: 357.9 kB / 0.8152 GB, free: 15.03 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008192/0.247, allocations: 435.8 kB / 0.8156 GB, free: 14.61 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001068/0.2481, allocations: 0.7747 MB / 0.8163 GB, free: 13.68 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001003/0.2491, allocations: 0.5178 MB / 0.8168 GB, free: 13.17 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.624e-06/0.2491, allocations: 4 kB / 0.8168 GB, free: 13.16 MB / 0.6387 GB Notification: Performance of matching and sorting (n=170) (initialization): time 0.002275/0.2514, allocations: 1.402 MB / 0.8182 GB, free: 11.75 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002062/0.2516, allocations: 364 kB / 0.8186 GB, free: 11.27 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.54e-05/0.2517, allocations: 8.062 kB / 0.8186 GB, free: 11.26 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.88e-05/0.2517, allocations: 20 kB / 0.8186 GB, free: 11.24 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001047/0.2527, allocations: 331.3 kB / 0.8189 GB, free: 10.92 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.659e-05/0.2528, allocations: 23.92 kB / 0.8189 GB, free: 10.9 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006892/0.2535, allocations: 198.2 kB / 0.8191 GB, free: 10.7 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.894e-05/0.2536, allocations: 55.98 kB / 0.8192 GB, free: 10.65 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 7.123e-06/0.2536, allocations: 4 kB / 0.8192 GB, free: 10.64 MB / 0.6387 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001659/0.2552, allocations: 1.14 MB / 0.8203 GB, free: 9.504 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.147e-05/0.2553, allocations: 11.98 kB / 0.8203 GB, free: 9.492 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.971e-05/0.2553, allocations: 20 kB / 0.8203 GB, free: 9.473 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008881/0.2562, allocations: 295.6 kB / 0.8206 GB, free: 9.184 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.745e-05/0.2562, allocations: 23.92 kB / 0.8206 GB, free: 9.16 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005397/0.2568, allocations: 158.5 kB / 0.8208 GB, free: 9.004 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.434e-05/0.2568, allocations: 56 kB / 0.8208 GB, free: 8.949 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 40 * 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 (170): * Single equations (assignments): 170 * 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: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0004767/0.2573, allocations: 392.7 kB / 0.8212 GB, free: 8.555 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001424/0.2575, allocations: 130.4 kB / 0.8213 GB, free: 8.426 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002233/0.2597, allocations: 1.281 MB / 0.8226 GB, free: 7.137 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.101e-05/0.2597, allocations: 12 kB / 0.8226 GB, free: 7.125 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.641e-06/0.2597, allocations: 0 / 0.8226 GB, free: 7.125 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.122e-05/0.2597, allocations: 7.969 kB / 0.8226 GB, free: 7.117 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005835/0.2656, allocations: 4.489 MB / 0.827 GB, free: 2.312 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.284e-05/0.2656, allocations: 20.06 kB / 0.827 GB, free: 2.293 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000839/0.2665, allocations: 263.6 kB / 0.8272 GB, free: 2.035 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.832e-05/0.2665, allocations: 20 kB / 0.8273 GB, free: 2.016 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.335e-05/0.2666, allocations: 47.92 kB / 0.8273 GB, free: 1.969 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.505e-05/0.2666, allocations: 35.81 kB / 0.8273 GB, free: 1.934 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.313e-05/0.2666, allocations: 23.94 kB / 0.8274 GB, free: 1.91 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002199/0.2689, allocations: 1.737 MB / 0.8291 GB, free: 15.97 MB / 0.6544 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001915/0.2691, allocations: 243.1 kB / 0.8293 GB, free: 15.71 MB / 0.6544 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001218/0.2692, allocations: 43.98 kB / 0.8293 GB, free: 15.67 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005907/0.2698, allocations: 79.89 kB / 0.8294 GB, free: 15.59 MB / 0.6544 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001309/0.2699, allocations: 132.1 kB / 0.8295 GB, free: 15.46 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.61e-05/0.27, allocations: 48 kB / 0.8296 GB, free: 15.41 MB / 0.6544 GB Notification: Performance of sorting global known variables: time 0.0007081/0.2707, allocations: 0.6497 MB / 0.8302 GB, free: 14.76 MB / 0.6544 GB Notification: Performance of sort global known variables: time 1.4e-07/0.2707, allocations: 0 / 0.8302 GB, free: 14.76 MB / 0.6544 GB Notification: Performance of remove unused functions: time 0.001261/0.272, allocations: 482.1 kB / 0.8307 GB, free: 14.29 MB / 0.6544 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 64 * 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 simulation (131): * Single equations (assignments): 131 * 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: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.002353/0.2743, allocations: 2.331 MB / 0.833 GB, free: 11.73 MB / 0.6544 GB Notification: Performance of simCode: created initialization part: time 0.002871/0.2772, allocations: 1.742 MB / 0.8347 GB, free: 9.996 MB / 0.6544 GB Notification: Performance of simCode: created event and clocks part: time 6.252e-06/0.2772, allocations: 4 kB / 0.8347 GB, free: 9.992 MB / 0.6544 GB Notification: Performance of simCode: created simulation system equations: time 0.001027/0.2783, allocations: 0.6158 MB / 0.8353 GB, free: 9.375 MB / 0.6544 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009662/0.2792, allocations: 180.8 kB / 0.8354 GB, free: 9.195 MB / 0.6544 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01208/0.2913, allocations: 8.16 MB / 0.8434 GB, free: 408 kB / 0.6544 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006509/0.292, allocations: 1.18 MB / 0.8446 GB, free: 15.18 MB / 0.67 GB Notification: Performance of simCode: alias equations: time 0.0008742/0.2929, allocations: 226.5 kB / 0.8448 GB, free: 14.96 MB / 0.67 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006644/0.2936, allocations: 0.5735 MB / 0.8453 GB, free: 14.38 MB / 0.67 GB Notification: Performance of SimCode: time 6.81e-07/0.2936, allocations: 0 / 0.8453 GB, free: 14.38 MB / 0.67 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0338/0.3274, allocations: 21.14 MB / 0.866 GB, free: 9.547 MB / 0.6856 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001853/0.3276, allocations: 237.4 kB / 0.8662 GB, free: 9.297 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate platform static: time 1.947/2.275, allocations: 0 / 0.8662 GB, free: 9.297 MB / 0.6856 GB (rm -f Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u.pipe ; mkfifo Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u.pipe ; head -c 1048576 < Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u.pipe >> ../files/Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_SetPoints_Validation_Supply_u_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_SetPoints_Validation_Supply_u.fmu > Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_u.pipe 2>&1) Environment - environmentSimulation: