Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/package.mo", uses=false) Using package Buildings with version 10.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/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) Running command: "" <> buildModelFMU(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements,fileNamePrefix="Buildings_latest_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomThreeElements",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements,fileNamePrefix="Buildings_latest_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomThreeElements",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 0.001576/0.001576, allocations: 100.2 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 0.001941/0.001942, 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 4.0.0+maint.om/package.mo): time 2.458/2.458, allocations: 223.2 MB / 239.9 MB, free: 5.312 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/package.mo): time 4.436/4.436, allocations: 409.2 MB / 0.6838 GB, free: 0.9258 MB / 0.5294 GB Notification: Performance of FrontEnd - loaded program: time 0.0005899/0.0005897, allocations: 12 kB / 0.8375 GB, free: 6.52 MB / 0.6856 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.433/1.434, allocations: 146.8 MB / 0.9809 GB, free: 6.242 MB / 0.7325 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements): time 0.2584/1.692, allocations: 137 MB / 1.115 GB, free: 12.88 MB / 0.8731 GB Notification: Performance of NFInst.instExpressions: time 0.05456/1.747, allocations: 23.16 MB / 1.137 GB, free: 5.656 MB / 0.8887 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0065/1.754, allocations: 67.62 kB / 1.137 GB, free: 5.59 MB / 0.8887 GB Notification: Performance of NFTyping.typeComponents: time 0.005028/1.759, allocations: 0.9994 MB / 1.138 GB, free: 4.586 MB / 0.8887 GB Notification: Performance of NFTyping.typeBindings: time 0.01283/1.772, allocations: 2.288 MB / 1.141 GB, free: 2.297 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.009124/1.781, allocations: 1.765 MB / 1.142 GB, free: 0.5547 MB / 0.8887 GB Notification: Performance of NFFlatten.flatten: time 0.01036/1.791, allocations: 3.335 MB / 1.146 GB, free: 13.21 MB / 0.9044 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007391/1.799, allocations: 3.234 MB / 1.149 GB, free: 9.926 MB / 0.9044 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00454/1.803, allocations: 1.471 MB / 1.15 GB, free: 8.449 MB / 0.9044 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004999/1.808, allocations: 1.84 MB / 1.152 GB, free: 6.602 MB / 0.9044 GB Notification: Performance of NFPackage.collectConstants: time 0.001291/1.81, allocations: 132 kB / 1.152 GB, free: 6.473 MB / 0.9044 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003521/1.813, allocations: 0.597 MB / 1.153 GB, free: 5.875 MB / 0.9044 GB Notification: Performance of NFScalarize.scalarize: time 0.001344/1.814, allocations: 0.7938 MB / 1.153 GB, free: 5.078 MB / 0.9044 GB Notification: Performance of NFVerifyModel.verify: time 0.001607/1.816, allocations: 0.7221 MB / 1.154 GB, free: 4.348 MB / 0.9044 GB Notification: Performance of NFConvertDAE.convert: time 0.009365/1.825, allocations: 4.922 MB / 1.159 GB, free: 15.41 MB / 0.92 GB Notification: Performance of FrontEnd - DAE generated: time 5.29e-06/1.826, allocations: 4 kB / 1.159 GB, free: 15.41 MB / 0.92 GB Notification: Performance of FrontEnd: time 5.06e-06/1.826, allocations: 0 / 1.159 GB, free: 15.41 MB / 0.92 GB Notification: Performance of Transformations before backend: time 0.0002752/1.826, allocations: 3.938 kB / 1.159 GB, free: 15.41 MB / 0.92 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 907 * Number of variables: 907 Notification: Performance of Generate backend data structure: time 0.01805/1.844, allocations: 4.295 MB / 1.163 GB, free: 11.02 MB / 0.92 GB Notification: Performance of prepare preOptimizeDAE: time 8.788e-05/1.844, allocations: 11.97 kB / 1.163 GB, free: 11.01 MB / 0.92 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.003331/1.847, allocations: 497.2 kB / 1.164 GB, free: 10.52 MB / 0.92 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02164/1.869, allocations: 2.936 MB / 1.166 GB, free: 7.57 MB / 0.92 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009772/1.879, allocations: 2.353 MB / 1.169 GB, free: 5.145 MB / 0.92 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004312/1.879, allocations: 267.1 kB / 1.169 GB, free: 4.883 MB / 0.92 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002093/1.881, allocations: 348 kB / 1.169 GB, free: 4.543 MB / 0.92 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02358/1.905, allocations: 5.572 MB / 1.175 GB, free: 14.9 MB / 0.9356 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001402/1.905, allocations: 0 / 1.175 GB, free: 14.9 MB / 0.9356 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001236/1.906, allocations: 144 kB / 1.175 GB, free: 14.76 MB / 0.9356 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001022/1.907, allocations: 84 kB / 1.175 GB, free: 14.68 MB / 0.9356 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02798/1.935, allocations: 6.778 MB / 1.182 GB, free: 7.891 MB / 0.9356 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 0.05502/1.99, allocations: 16.24 MB / 1.198 GB, free: 7.039 MB / 0.9512 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0164/2.006, allocations: 4.38 MB / 1.202 GB, free: 2.656 MB / 0.9512 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001558/2.008, allocations: 0.6737 MB / 1.202 GB, free: 1.852 MB / 0.9512 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01096/2.019, allocations: 2.802 MB / 1.205 GB, free: 15.01 MB / 0.9669 GB Notification: Performance of pre-optimization done (n=309): time 1.038e-05/2.019, allocations: 0 / 1.205 GB, free: 15.01 MB / 0.9669 GB Notification: Performance of matching and sorting (n=309): time 0.04182/2.061, allocations: 8.808 MB / 1.214 GB, free: 6.082 MB / 0.9669 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002283/2.061, allocations: 210.4 kB / 1.214 GB, free: 5.832 MB / 0.9669 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00653/2.067, allocations: 2.636 MB / 1.217 GB, free: 3.18 MB / 0.9669 GB Notification: Performance of collectPreVariables (initialization): time 0.001415/2.069, allocations: 85.7 kB / 1.217 GB, free: 3.09 MB / 0.9669 GB Notification: Performance of collectInitialEqns (initialization): time 0.002271/2.071, allocations: 1.487 MB / 1.218 GB, free: 1.59 MB / 0.9669 GB Notification: Performance of collectInitialBindings (initialization): time 0.002653/2.074, allocations: 1.005 MB / 1.219 GB, free: 0.5703 MB / 0.9669 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005416/2.075, allocations: 52 kB / 1.219 GB, free: 0.5195 MB / 0.9669 GB Notification: Performance of setup shared object (initialization): time 0.0003958/2.075, allocations: 419.5 kB / 1.22 GB, free: 108 kB / 0.9669 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.008488/2.083, allocations: 2.164 MB / 1.222 GB, free: 13.94 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.009621/2.093, allocations: 2.495 MB / 1.224 GB, free: 11.36 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009545/2.103, allocations: 2.307 MB / 1.226 GB, free: 9.035 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.015e-05/2.103, allocations: 0 / 1.226 GB, free: 9.035 MB / 0.9825 GB Notification: Performance of matching and sorting (n=347) (initialization): time 0.02281/2.126, allocations: 5.556 MB / 1.232 GB, free: 3.434 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 4.891e-05/2.126, allocations: 4 kB / 1.232 GB, free: 3.43 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.485e-05/2.126, allocations: 4 kB / 1.232 GB, free: 3.426 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001981/2.128, allocations: 0.5495 MB / 1.232 GB, free: 2.875 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007228/2.135, allocations: 0.8268 MB / 1.233 GB, free: 2.047 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01201/2.147, allocations: 5.467 MB / 1.238 GB, free: 12.44 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006883/2.154, allocations: 0.6229 MB / 1.239 GB, free: 11.82 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001184/2.155, allocations: 119.9 kB / 1.239 GB, free: 11.7 MB / 0.9981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 32 ($whenCondition1,$PRE.intGai.nextTimeEvent,$whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$PRE.weaDat.locTim.tNext,weaDat.locTim.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.decAng.tNext,weaDat.decAng.tNext,$PRE.HDifTil[1].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,$PRE.HDifTil[2].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,$PRE.HDirTil[1].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,$PRE.HDirTil[2].incAng.decAng.tNext,HDirTil[2].incAng.decAng.tNext,intGai.nextTimeEvent,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEventScaled) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (302): * Single equations (assignments): 301 * 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: 1 {(4,100.0%) 42} * Non-linear torn systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.004775/2.16, allocations: 1.02 MB / 1.24 GB, free: 10.67 MB / 0.9981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001715/2.162, allocations: 304.2 kB / 1.24 GB, free: 10.37 MB / 0.9981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02458/2.186, allocations: 6.271 MB / 1.247 GB, free: 4.035 MB / 0.9981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.658e-05/2.187, allocations: 32 kB / 1.247 GB, free: 4.004 MB / 0.9981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.507e-05/2.187, allocations: 8 kB / 1.247 GB, free: 3.996 MB / 0.9981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.509e-05/2.187, allocations: 23.88 kB / 1.247 GB, free: 3.973 MB / 0.9981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 1.137/3.324, allocations: 4.087 MB / 1.251 GB, free: 258.6 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.0001359/3.324, allocations: 0 / 1.251 GB, free: 258.6 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.008536/3.332, allocations: 0.7689 MB / 1.251 GB, free: 258.6 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003685/3.336, allocations: 0.5224 MB / 1.252 GB, free: 258.6 MB / 0.9981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001915/3.338, allocations: 89.75 kB / 1.252 GB, free: 258.6 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01605/3.354, allocations: 7.101 MB / 1.259 GB, free: 254.7 MB / 0.9981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.962e-06/3.354, allocations: 1.031 kB / 1.259 GB, free: 254.7 MB / 0.9981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03946/3.394, allocations: 8.885 MB / 1.268 GB, free: 251.8 MB / 0.9981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.004516/3.398, allocations: 0.9501 MB / 1.269 GB, free: 251.4 MB / 0.9981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001815/3.4, allocations: 71.61 kB / 1.269 GB, free: 251.3 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.006309/3.407, allocations: 466 kB / 1.269 GB, free: 251.3 MB / 0.9981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001204/3.408, allocations: 226 kB / 1.269 GB, free: 251.3 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0006938/3.409, allocations: 117.2 kB / 1.269 GB, free: 251.2 MB / 0.9981 GB Notification: Performance of sorting global known variables: time 0.00481/3.413, allocations: 1.909 MB / 1.271 GB, free: 250.6 MB / 0.9981 GB Notification: Performance of sort global known variables: time 5.51e-07/3.414, allocations: 2.25 kB / 1.271 GB, free: 250.6 MB / 0.9981 GB Notification: Performance of remove unused functions: time 0.007166/3.421, allocations: 1.176 MB / 1.272 GB, free: 250.3 MB / 0.9981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 5 (thermalZoneThreeElements.volAir.dynBal.U,thermalZoneThreeElements.volAir.dynBal.m,thermalZoneThreeElements.extWallRC.thermCapExt[1].T,thermalZoneThreeElements.intWallRC.thermCapInt[1].T,thermalZoneThreeElements.floorRC.thermCapExt[1].T) * Number of discrete variables: 21 ($whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,HDifTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,HDirTil[2].incAng.decAng.tNext,intGai.nextTimeEvent,intGai.nextTimeEventScaled) * Number of discrete states: 11 (intGai.nextTimeEventScaled,intGai.nextTimeEvent,HDirTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,weaDat.decAng.tNext,weaDat.eqnTim.tNext,weaDat.conTim.tNext,weaDat.conTimMin.tNext,weaDat.locTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (285): * Single equations (assignments): 271 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 11 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 2 {(4,100.0%) 36,(1,100.0%) 3} * Non-linear torn systems: 1 {1 2} Notification: Performance of Backend phase and start with SimCode phase: time 0.03616/3.457, allocations: 10.4 MB / 1.283 GB, free: 244.6 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.01935/3.476, allocations: 5.363 MB / 1.288 GB, free: 239.3 MB / 0.9981 GB Notification: Performance of simCode: created event and clocks part: time 1.056e-05/3.476, allocations: 0 / 1.288 GB, free: 239.3 MB / 0.9981 GB Notification: Performance of simCode: created simulation system equations: time 0.0104/3.487, allocations: 3.117 MB / 1.291 GB, free: 236.2 MB / 0.9981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005756/3.493, allocations: 0.6281 MB / 1.291 GB, free: 235.6 MB / 0.9981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.09566/3.588, allocations: 30.72 MB / 1.321 GB, free: 203.6 MB / 0.9981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003296/3.592, allocations: 2.703 MB / 1.324 GB, free: 200.9 MB / 0.9981 GB Notification: Performance of simCode: alias equations: time 0.009638/3.601, allocations: 1.19 MB / 1.325 GB, free: 199.7 MB / 0.9981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.005143/3.607, allocations: 1.589 MB / 1.327 GB, free: 198.1 MB / 0.9981 GB Notification: Performance of SimCode: time 1.754e-06/3.607, allocations: 0 / 1.327 GB, free: 198.1 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1981/3.805, allocations: 78.55 MB / 1.403 GB, free: 120.2 MB / 0.9981 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002501/3.805, allocations: 288.5 kB / 1.404 GB, free: 119.9 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate platform static: time 7.29/11.1, allocations: 5.969 kB / 1.404 GB, free: 119.9 MB / 0.9981 GB (rm -f Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.pipe ; mkfifo Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.pipe ; head -c 1048576 < Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.pipe >> ../files/Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator -r=Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements_res.mat --tempDir=temp_Buildings_latest_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomThreeElements_fmu --startTime=0 --stopTime=3.1536e+07 --timeout=50 --tolerance=1e-06 Buildings_latest_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomThreeElements.fmu > Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomThreeElements.pipe 2>&1) Environment - environmentSimulation: