Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop.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.Boilers.Examples.BoilerPolynomialClosedLoop,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop") translateModel(Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008309/0.0008311, allocations: 91.77 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.008615/0.008615, allocations: 171.4 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.581/1.581, allocations: 205.4 MB / 222.4 MB, free: 5.559 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 1.525/1.525, allocations: 252 MB / 0.5105 GB, free: 4.625 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 0.0005843/0.0005845, allocations: 12 kB / 0.6249 GB, free: 0.7148 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5908/0.5914, allocations: 106.3 MB / 0.7287 GB, free: 11.26 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop): time 0.7184/1.31, allocations: 275 MB / 0.9973 GB, free: 47.68 MB / 0.7169 GB Notification: Performance of NFInst.instExpressions: time 0.07381/1.384, allocations: 53.28 MB / 1.049 GB, free: 12.86 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.01277/1.397, allocations: 270.1 kB / 1.05 GB, free: 12.59 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.009839/1.406, allocations: 2.429 MB / 1.052 GB, free: 10.15 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.02024/1.427, allocations: 6.24 MB / 1.058 GB, free: 3.895 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.01601/1.443, allocations: 5.772 MB / 1.064 GB, free: 14.18 MB / 0.7325 GB Notification: Performance of NFFlatten.flatten: time 0.02183/1.465, allocations: 16.68 MB / 1.08 GB, free: 13.46 MB / 0.7481 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007981/1.473, allocations: 3.908 MB / 1.084 GB, free: 9.469 MB / 0.7481 GB Notification: Performance of NFEvalConstants.evaluate: time 0.012/1.485, allocations: 4.736 MB / 1.088 GB, free: 4.711 MB / 0.7481 GB Notification: Performance of NFSimplifyModel.simplify: time 0.007595/1.492, allocations: 3.76 MB / 1.092 GB, free: 0.9336 MB / 0.7481 GB Notification: Performance of NFPackage.collectConstants: time 0.001836/1.494, allocations: 199.9 kB / 1.092 GB, free: 0.7383 MB / 0.7481 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0097/1.504, allocations: 2.64 MB / 1.095 GB, free: 14.09 MB / 0.7637 GB Notification: Performance of NFScalarize.scalarize: time 0.002634/1.507, allocations: 1.077 MB / 1.096 GB, free: 13.01 MB / 0.7637 GB Notification: Performance of NFVerifyModel.verify: time 0.005845/1.513, allocations: 2.534 MB / 1.098 GB, free: 10.46 MB / 0.7637 GB Notification: Performance of NFConvertDAE.convert: time 0.01239/1.525, allocations: 7.529 MB / 1.106 GB, free: 2.902 MB / 0.7637 GB Notification: Performance of FrontEnd - DAE generated: time 8.256e-06/1.525, allocations: 3.984 kB / 1.106 GB, free: 2.898 MB / 0.7637 GB Notification: Performance of FrontEnd: time 3.306e-06/1.525, allocations: 0 / 1.106 GB, free: 2.898 MB / 0.7637 GB Notification: Performance of Transformations before backend: time 0.0002489/1.525, allocations: 0 / 1.106 GB, free: 2.898 MB / 0.7637 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 679 * Number of variables: 679 Notification: Performance of Generate backend data structure: time 0.01173/1.537, allocations: 5.067 MB / 1.111 GB, free: 13.75 MB / 0.7794 GB Notification: Performance of prepare preOptimizeDAE: time 5.155e-05/1.537, allocations: 12.03 kB / 1.111 GB, free: 13.73 MB / 0.7794 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.004824/1.542, allocations: 0.9924 MB / 1.112 GB, free: 12.73 MB / 0.7794 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.008594/1.551, allocations: 4.029 MB / 1.116 GB, free: 8.629 MB / 0.7794 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0008409/1.551, allocations: 353.8 kB / 1.116 GB, free: 8.281 MB / 0.7794 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008146/1.552, allocations: 299.9 kB / 1.116 GB, free: 7.988 MB / 0.7794 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.006521/1.559, allocations: 3.215 MB / 1.119 GB, free: 4.633 MB / 0.7794 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.931e-05/1.559, allocations: 11.94 kB / 1.119 GB, free: 4.621 MB / 0.7794 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002853/1.559, allocations: 112 kB / 1.119 GB, free: 4.512 MB / 0.7794 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.358e-05/1.559, allocations: 72 kB / 1.12 GB, free: 4.441 MB / 0.7794 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006011/1.565, allocations: 2.643 MB / 1.122 GB, free: 1.781 MB / 0.7794 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 0.02716/1.592, allocations: 17.98 MB / 1.14 GB, free: 14.2 MB / 0.8106 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004102/1.597, allocations: 1.885 MB / 1.141 GB, free: 12.29 MB / 0.8106 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002172/1.599, allocations: 1.047 MB / 1.143 GB, free: 11.24 MB / 0.8106 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 evalFunc (simulation): time 0.008001/1.607, allocations: 3.761 MB / 1.146 GB, free: 7.305 MB / 0.8106 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.114e-05/1.607, allocations: 51.88 kB / 1.146 GB, free: 7.246 MB / 0.8106 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.003263/1.61, allocations: 0.8375 MB / 1.147 GB, free: 6.406 MB / 0.8106 GB Notification: Performance of pre-optimization done (n=142): time 7.234e-06/1.61, allocations: 0 / 1.147 GB, free: 6.406 MB / 0.8106 GB Notification: Performance of matching and sorting (n=147): time 0.02413/1.634, allocations: 7.457 MB / 1.154 GB, free: 14.83 MB / 0.8262 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001352/1.635, allocations: 264.5 kB / 1.155 GB, free: 14.52 MB / 0.8262 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005806/1.64, allocations: 3.963 MB / 1.158 GB, free: 10.57 MB / 0.8262 GB Notification: Performance of collectPreVariables (initialization): time 0.0004254/1.641, allocations: 69.69 kB / 1.159 GB, free: 10.5 MB / 0.8262 GB Notification: Performance of collectInitialEqns (initialization): time 0.001865/1.643, allocations: 2.214 MB / 1.161 GB, free: 8.266 MB / 0.8262 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006415/1.643, allocations: 0.5122 MB / 1.161 GB, free: 7.746 MB / 0.8262 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002948/1.644, allocations: 198.1 kB / 1.161 GB, free: 7.547 MB / 0.8262 GB Notification: Performance of setup shared object (initialization): time 9.625e-05/1.644, allocations: 305.1 kB / 1.162 GB, free: 7.246 MB / 0.8262 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002146/1.646, allocations: 0.9569 MB / 1.163 GB, free: 6.285 MB / 0.8262 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00262/1.648, allocations: 1.821 MB / 1.164 GB, free: 4.078 MB / 0.8262 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004535/1.653, allocations: 2.624 MB / 1.167 GB, free: 1.188 MB / 0.8262 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.097e-05/1.653, allocations: 7.938 kB / 1.167 GB, free: 1.18 MB / 0.8262 GB Notification: Performance of matching and sorting (n=283) (initialization): time 0.009718/1.663, allocations: 3.735 MB / 1.171 GB, free: 13.42 MB / 0.8419 GB Notification: Performance of prepare postOptimizeDAE: time 0.000445/1.663, allocations: 0.6722 MB / 1.171 GB, free: 12.48 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.506e-05/1.663, allocations: 27.98 kB / 1.171 GB, free: 12.45 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003466/1.667, allocations: 0.6345 MB / 1.172 GB, free: 11.8 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00254/1.669, allocations: 0.5227 MB / 1.172 GB, free: 11.28 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007732/1.677, allocations: 5.304 MB / 1.178 GB, free: 5.68 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004186/1.681, allocations: 340.7 kB / 1.178 GB, free: 5.344 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003114/1.682, allocations: 135.8 kB / 1.178 GB, free: 5.211 MB / 0.8419 GB Notification: Performance of prepare postOptimizeDAE: time 9.197e-06/1.682, allocations: 8 kB / 1.178 GB, free: 5.203 MB / 0.8419 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.008823/1.69, allocations: 3.125 MB / 1.181 GB, free: 2.066 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.012e-05/1.691, allocations: 27.98 kB / 1.181 GB, free: 2.039 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002797/1.693, allocations: 0.5768 MB / 1.182 GB, free: 1.453 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002096/1.695, allocations: 0.5189 MB / 1.182 GB, free: 0.9336 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.008949/1.704, allocations: 6.63 MB / 1.189 GB, free: 9.875 MB / 0.8575 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004251/1.709, allocations: 328.8 kB / 1.189 GB, free: 9.555 MB / 0.8575 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000313/1.709, allocations: 123.9 kB / 1.189 GB, free: 9.434 MB / 0.8575 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 87 * Number of states: 0 () * Number of discrete variables: 3 (onOffController.y,$PRE.onOffController.y,conPID.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (248): * Single equations (assignments): 237 * Array equations: 5 * Algorithm blocks: 0 * Record equations: 3 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,4,100.0%), (3,11,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,9)} Notification: Performance of prepare postOptimizeDAE: time 0.002072/1.711, allocations: 0.8714 MB / 1.19 GB, free: 8.551 MB / 0.8575 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009374/1.712, allocations: 454.2 kB / 1.19 GB, free: 8.102 MB / 0.8575 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.007093/1.719, allocations: 2.935 MB / 1.193 GB, free: 5.148 MB / 0.8575 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.43e-05/1.719, allocations: 24.03 kB / 1.193 GB, free: 5.125 MB / 0.8575 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.995e-06/1.719, allocations: 0 / 1.193 GB, free: 5.125 MB / 0.8575 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.005132/1.724, allocations: 2.228 MB / 1.195 GB, free: 2.855 MB / 0.8575 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 postOpt removeSimpleEquations (simulation): time 0.01264/1.737, allocations: 5.765 MB / 1.201 GB, free: 13.02 MB / 0.8731 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.236e-05/1.737, allocations: 4 kB / 1.201 GB, free: 13.02 MB / 0.8731 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001715/1.739, allocations: 355.6 kB / 1.201 GB, free: 12.67 MB / 0.8731 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001343/1.74, allocations: 366 kB / 1.202 GB, free: 12.3 MB / 0.8731 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001207/1.74, allocations: 47.97 kB / 1.202 GB, free: 12.26 MB / 0.8731 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004671/1.745, allocations: 4.304 MB / 1.206 GB, free: 7.664 MB / 0.8731 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.023e-06/1.745, allocations: 0 / 1.206 GB, free: 7.664 MB / 0.8731 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.008214/1.753, allocations: 3.794 MB / 1.21 GB, free: 3.84 MB / 0.8731 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001871/1.755, allocations: 0.7253 MB / 1.21 GB, free: 3.09 MB / 0.8731 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005827/1.756, allocations: 36 kB / 1.21 GB, free: 3.055 MB / 0.8731 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002648/1.758, allocations: 295.4 kB / 1.211 GB, free: 2.766 MB / 0.8731 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002447/1.759, allocations: 117.8 kB / 1.211 GB, free: 2.652 MB / 0.8731 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000151/1.759, allocations: 71.95 kB / 1.211 GB, free: 2.582 MB / 0.8731 GB Notification: Performance of sorting global known variables: time 0.003967/1.763, allocations: 2.623 MB / 1.214 GB, free: 15.97 MB / 0.8887 GB Notification: Performance of sort global known variables: time 2.61e-07/1.763, allocations: 0 / 1.214 GB, free: 15.97 MB / 0.8887 GB Notification: Performance of remove unused functions: time 0.008608/1.771, allocations: 1.949 MB / 1.215 GB, free: 14.02 MB / 0.8887 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 11 (boi.heaCapDry.T,val.filter.x[1],val.filter.x[2],pumLoa.filter.x[1],pumLoa.filter.x[2],pumBoi.filter.x[1],pumBoi.filter.x[2],conPID.I.y,exp.m,exp.H,vol.dynBal.U) * Number of discrete variables: 1 (onOffController.y) * Number of discrete states: 1 (onOffController.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (157): * Single equations (assignments): 150 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,4,100.0%), (3,11,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,9)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002093/1.773, allocations: 0.7825 MB / 1.216 GB, free: 13.24 MB / 0.8887 GB Notification: Performance of simCode: created initialization part: time 0.01001/1.783, allocations: 4.824 MB / 1.221 GB, free: 8.32 MB / 0.8887 GB Notification: Performance of simCode: created event and clocks part: time 8.416e-06/1.784, allocations: 0 / 1.221 GB, free: 8.32 MB / 0.8887 GB Notification: Performance of simCode: created simulation system equations: time 0.002891/1.786, allocations: 1.379 MB / 1.222 GB, free: 6.918 MB / 0.8887 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01339/1.8, allocations: 2.317 MB / 1.224 GB, free: 4.629 MB / 0.8887 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01704/1.817, allocations: 9.222 MB / 1.233 GB, free: 11.38 MB / 0.9044 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002335/1.819, allocations: 2.461 MB / 1.236 GB, free: 8.883 MB / 0.9044 GB Notification: Performance of simCode: alias equations: time 0.005075/1.824, allocations: 0.9251 MB / 1.237 GB, free: 7.957 MB / 0.9044 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001102/1.826, allocations: 339.3 kB / 1.237 GB, free: 7.629 MB / 0.9044 GB Notification: Performance of SimCode: time 1.783e-06/1.826, allocations: 0 / 1.237 GB, free: 7.629 MB / 0.9044 GB Notification: Performance of Templates: time 0.5083/2.334, allocations: 84.64 MB / 1.32 GB, free: 321.3 MB / 0.92 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop.pipe 2>&1) Environment - environmentSimulation: