Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_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 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.HeatExchangers.Examples.AirHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u") translateModel(Buildings.Fluid.HeatExchangers.Examples.AirHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001072/0.001072, allocations: 90.52 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 0.009495/0.009496, allocations: 171.1 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 1.602/1.602, allocations: 205.4 MB / 222.4 MB, free: 5.562 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 1.61/1.61, allocations: 252 MB / 0.5105 GB, free: 4.621 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 0.0006245/0.0006242, allocations: 12 kB / 0.6249 GB, free: 0.6992 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5922/0.5928, allocations: 106.3 MB / 0.7287 GB, free: 11.28 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.AirHeater_u): time 0.8731/1.466, allocations: 255.3 MB / 0.978 GB, free: 1.277 MB / 0.7169 GB Notification: Performance of NFInst.instExpressions: time 0.03441/1.5, allocations: 19.98 MB / 0.9975 GB, free: 0.8125 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005142/1.506, allocations: 81.31 kB / 0.9976 GB, free: 0.8125 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.004811/1.51, allocations: 1.288 MB / 0.9988 GB, free: 0.7695 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.01188/1.522, allocations: 3.811 MB / 1.003 GB, free: 0.5703 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.01183/1.534, allocations: 3.398 MB / 1.006 GB, free: 15.76 MB / 0.7325 GB Notification: Performance of NFFlatten.flatten: time 0.01664/1.551, allocations: 7.988 MB / 1.014 GB, free: 13.26 MB / 0.7325 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004986/1.556, allocations: 1.796 MB / 1.015 GB, free: 12.26 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.006781/1.563, allocations: 2.32 MB / 1.018 GB, free: 11.61 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005088/1.568, allocations: 1.779 MB / 1.019 GB, free: 10.94 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.000855/1.569, allocations: 92.06 kB / 1.02 GB, free: 10.94 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01039/1.579, allocations: 4.573 MB / 1.024 GB, free: 9.074 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.001785/1.581, allocations: 0.7284 MB / 1.025 GB, free: 8.625 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.003584/1.585, allocations: 1.239 MB / 1.026 GB, free: 7.852 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.01178/1.596, allocations: 5.192 MB / 1.031 GB, free: 4.68 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 5.62e-06/1.596, allocations: 0 / 1.031 GB, free: 4.68 MB / 0.7325 GB Notification: Performance of FrontEnd: time 2.274e-06/1.596, allocations: 0 / 1.031 GB, free: 4.68 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 0.0001436/1.597, allocations: 0 / 1.031 GB, free: 4.68 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: 382 * Number of variables: 382 Notification: Performance of Generate backend data structure: time 0.006951/1.604, allocations: 2.699 MB / 1.034 GB, free: 1.945 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 6.18e-05/1.604, allocations: 8.031 kB / 1.034 GB, free: 1.938 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005351/1.609, allocations: 0.8043 MB / 1.034 GB, free: 1.133 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003786/1.613, allocations: 1.817 MB / 1.036 GB, free: 15.35 MB / 0.7481 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004175/1.613, allocations: 186.9 kB / 1.036 GB, free: 15.16 MB / 0.7481 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002966/1.614, allocations: 170.6 kB / 1.037 GB, free: 15 MB / 0.7481 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003614/1.617, allocations: 1.888 MB / 1.038 GB, free: 13.05 MB / 0.7481 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.384e-05/1.617, allocations: 0 / 1.038 GB, free: 13.05 MB / 0.7481 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001537/1.617, allocations: 67.05 kB / 1.038 GB, free: 12.99 MB / 0.7481 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.715e-05/1.617, allocations: 58.94 kB / 1.038 GB, free: 12.93 MB / 0.7481 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003366/1.621, allocations: 1.62 MB / 1.04 GB, free: 11.32 MB / 0.7481 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 0.01236/1.633, allocations: 8.306 MB / 1.048 GB, free: 2.543 MB / 0.7481 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00287/1.636, allocations: 1.814 MB / 1.05 GB, free: 0.5898 MB / 0.7481 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001412/1.637, allocations: 0.6819 MB / 1.051 GB, free: 15.91 MB / 0.7637 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005412/1.638, allocations: 237.2 kB / 1.051 GB, free: 15.64 MB / 0.7637 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001527/1.64, allocations: 0.7076 MB / 1.052 GB, free: 14.93 MB / 0.7637 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001032/1.641, allocations: 121.3 kB / 1.052 GB, free: 14.81 MB / 0.7637 GB Notification: Performance of pre-optimization done (n=101): time 5.751e-06/1.641, allocations: 3.938 kB / 1.052 GB, free: 14.8 MB / 0.7637 GB Notification: Performance of matching and sorting (n=104): time 0.0099/1.651, allocations: 3.705 MB / 1.055 GB, free: 11.02 MB / 0.7637 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.218e-05/1.651, allocations: 122.8 kB / 1.055 GB, free: 10.88 MB / 0.7637 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00287/1.654, allocations: 1.585 MB / 1.057 GB, free: 9.254 MB / 0.7637 GB Notification: Performance of collectPreVariables (initialization): time 0.0001559/1.654, allocations: 52.98 kB / 1.057 GB, free: 9.199 MB / 0.7637 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009959/1.655, allocations: 0.9753 MB / 1.058 GB, free: 8.215 MB / 0.7637 GB Notification: Performance of collectInitialBindings (initialization): time 0.000405/1.655, allocations: 369.4 kB / 1.058 GB, free: 7.855 MB / 0.7637 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001877/1.655, allocations: 109.7 kB / 1.058 GB, free: 7.742 MB / 0.7637 GB Notification: Performance of setup shared object (initialization): time 0.0001664/1.656, allocations: 357.9 kB / 1.059 GB, free: 7.387 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00135/1.657, allocations: 0.5764 MB / 1.059 GB, free: 6.812 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001631/1.659, allocations: 0.9392 MB / 1.06 GB, free: 5.727 MB / 0.7637 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol.dynBal.medium.p = vol.dynBal.p_start (hea.vol.dynBal.p_start = vol.dynBal.p_start) Notification: Performance of analyzeInitialSystem (initialization): time 0.01702/1.676, allocations: 4.697 MB / 1.065 GB, free: 0.918 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.147e-06/1.676, allocations: 0 / 1.065 GB, free: 0.918 MB / 0.7637 GB Notification: Performance of matching and sorting (n=161) (initialization): time 0.004531/1.68, allocations: 1.768 MB / 1.067 GB, free: 15.17 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003319/1.681, allocations: 359.3 kB / 1.067 GB, free: 14.71 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.956e-05/1.681, allocations: 8 kB / 1.067 GB, free: 14.7 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002306/1.681, allocations: 52.83 kB / 1.067 GB, free: 14.65 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001384/1.682, allocations: 309.4 kB / 1.067 GB, free: 14.36 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001507/1.684, allocations: 1.51 MB / 1.069 GB, free: 12.73 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002354/1.686, allocations: 183.7 kB / 1.069 GB, free: 12.55 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001781/1.686, allocations: 59.98 kB / 1.069 GB, free: 12.49 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 2.072e-05/1.686, allocations: 4 kB / 1.069 GB, free: 12.49 MB / 0.7794 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.003506/1.69, allocations: 1.56 MB / 1.07 GB, free: 10.98 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.735e-05/1.69, allocations: 8 kB / 1.07 GB, free: 10.97 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000147/1.69, allocations: 44.84 kB / 1.071 GB, free: 10.92 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001288/1.691, allocations: 304.1 kB / 1.071 GB, free: 10.64 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001351/1.693, allocations: 1.506 MB / 1.072 GB, free: 9.012 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002289/1.695, allocations: 196.2 kB / 1.072 GB, free: 8.82 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001497/1.695, allocations: 51.98 kB / 1.073 GB, free: 8.77 MB / 0.7794 GB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization sytem: vol.dynBal.medium.p = vol.dynBal.p_start. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 35 * Number of states: 0 () * Number of discrete variables: 6 ($PRE.TSet.count,$PRE.TSet.T_start,TSet.count,TSet.T_start,$whenCondition1,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (153): * Single equations (assignments): 147 * Array equations: 3 * Algorithm blocks: 1 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.001334/1.697, allocations: 0.5967 MB / 1.073 GB, free: 8.18 MB / 0.7794 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005995/1.697, allocations: 193.7 kB / 1.073 GB, free: 7.988 MB / 0.7794 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003804/1.701, allocations: 1.465 MB / 1.075 GB, free: 6.512 MB / 0.7794 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.287e-05/1.701, allocations: 8 kB / 1.075 GB, free: 6.504 MB / 0.7794 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.146e-05/1.701, allocations: 7.938 kB / 1.075 GB, free: 6.496 MB / 0.7794 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002698/1.704, allocations: 1.202 MB / 1.076 GB, free: 5.281 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 postOpt removeSimpleEquations (simulation): time 0.008197/1.712, allocations: 3.595 MB / 1.079 GB, free: 1.602 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.296e-06/1.712, allocations: 8.125 kB / 1.079 GB, free: 1.594 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001227/1.713, allocations: 245.1 kB / 1.08 GB, free: 1.363 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002707/1.713, allocations: 72.11 kB / 1.08 GB, free: 1.289 MB / 0.7794 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.925e-05/1.714, allocations: 27.98 kB / 1.08 GB, free: 1.262 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002279/1.716, allocations: 2.757 MB / 1.082 GB, free: 14.25 MB / 0.795 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.751e-06/1.716, allocations: 4.031 kB / 1.082 GB, free: 14.25 MB / 0.795 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004778/1.721, allocations: 2.233 MB / 1.085 GB, free: 11.98 MB / 0.795 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001051/1.722, allocations: 378.6 kB / 1.085 GB, free: 11.59 MB / 0.795 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004608/1.722, allocations: 24 kB / 1.085 GB, free: 11.57 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001847/1.724, allocations: 201.9 kB / 1.085 GB, free: 11.38 MB / 0.795 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001871/1.724, allocations: 71.34 kB / 1.085 GB, free: 11.31 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001082/1.724, allocations: 47.91 kB / 1.085 GB, free: 11.26 MB / 0.795 GB Notification: Performance of sorting global known variables: time 0.001922/1.726, allocations: 1.063 MB / 1.086 GB, free: 10.18 MB / 0.795 GB Notification: Performance of sort global known variables: time 4.11e-07/1.726, allocations: 4 kB / 1.086 GB, free: 10.17 MB / 0.795 GB Notification: Performance of remove unused functions: time 0.003702/1.73, allocations: 0.9491 MB / 1.087 GB, free: 9.223 MB / 0.795 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 9 (vol.dynBal.U,vol.dynBal.mXi[1],mov.filter.x[1],mov.filter.x[2],conPI.I.y,THeaOut.T,hea.vol.dynBal.U,hea.vol.dynBal.m,hea.vol.dynBal.mXi[1]) * Number of discrete variables: 3 ($whenCondition1,TSet.T_start,TSet.count) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (102): * Single equations (assignments): 98 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,2,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001292/1.731, allocations: 408.4 kB / 1.088 GB, free: 8.852 MB / 0.795 GB Notification: Performance of simCode: created initialization part: time 0.005524/1.737, allocations: 2.572 MB / 1.09 GB, free: 6.285 MB / 0.795 GB Notification: Performance of simCode: created event and clocks part: time 8.786e-06/1.737, allocations: 0.6875 kB / 1.09 GB, free: 6.285 MB / 0.795 GB Notification: Performance of simCode: created simulation system equations: time 0.001714/1.739, allocations: 0.8747 MB / 1.091 GB, free: 5.41 MB / 0.795 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.006101/1.745, allocations: 0.9674 MB / 1.092 GB, free: 4.449 MB / 0.795 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01001/1.755, allocations: 5.045 MB / 1.097 GB, free: 15.37 MB / 0.8106 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001756/1.757, allocations: 1.59 MB / 1.098 GB, free: 13.75 MB / 0.8106 GB Notification: Performance of simCode: alias equations: time 0.00269/1.759, allocations: 0.5037 MB / 1.099 GB, free: 13.24 MB / 0.8106 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005558/1.76, allocations: 143.4 kB / 1.099 GB, free: 13.1 MB / 0.8106 GB Notification: Performance of SimCode: time 1.062e-06/1.76, allocations: 4 kB / 1.099 GB, free: 13.09 MB / 0.8106 GB Notification: Performance of Templates: time 0.06192/1.822, allocations: 37.42 MB / 1.136 GB, free: 8.258 MB / 0.8419 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u.pipe 2>&1) Environment - environmentSimulation: