Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T.conf.json loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 8.1.1-maint.8.1.x/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package Buildings with version 8.1.1 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 8.1.1-maint.8.1.x/package.mo) Running command: translateModel(Buildings.Fluid.HeatExchangers.Examples.AirHeater_T,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T") translateModel(Buildings.Fluid.HeatExchangers.Examples.AirHeater_T,tolerance=1e-08,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 8.1.1-maint.8.1.x/package.mo): time 1.635/1.635, allocations: 297.4 MB / 312.6 MB, free: 2.918 MB / 234.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009441/0.0009445, allocations: 178 kB / 382.3 MB, free: 14.83 MB / 314.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.388/1.388, allocations: 225.7 MB / 0.6617 GB, free: 7.238 MB / 490.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008535/0.0008539, allocations: 90.25 kB / 0.7789 GB, free: 46.95 MB / 0.5417 GB Notification: Performance of FrontEnd - loaded program: time 0.0003492/0.0003492, allocations: 12 kB / 0.9058 GB, free: 4.938 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6619/0.6622, allocations: 119.2 MB / 1.022 GB, free: 57.96 MB / 0.698 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.AirHeater_T): time 0.2404/0.9027, allocations: 230.7 MB / 1.248 GB, free: 7.633 MB / 0.823 GB Notification: Performance of NFInst.instExpressions: time 0.03396/0.9367, allocations: 25.49 MB / 1.273 GB, free: 13.12 MB / 0.8542 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004383/0.9411, allocations: 75.5 kB / 1.273 GB, free: 13.05 MB / 0.8542 GB Notification: Performance of NFTyping.typeComponents: time 0.004403/0.9455, allocations: 1.17 MB / 1.274 GB, free: 11.87 MB / 0.8542 GB Notification: Performance of NFTyping.typeBindings: time 0.01086/0.9564, allocations: 3.168 MB / 1.277 GB, free: 8.699 MB / 0.8542 GB Notification: Performance of NFTyping.typeClassSections: time 0.01061/0.967, allocations: 3.297 MB / 1.28 GB, free: 5.41 MB / 0.8542 GB Notification: Performance of NFFlatten.flatten: time 0.009155/0.9762, allocations: 6.569 MB / 1.286 GB, free: 14.82 MB / 0.8698 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003139/0.9794, allocations: 1.597 MB / 1.288 GB, free: 13.18 MB / 0.8698 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00654/0.9859, allocations: 2.393 MB / 1.29 GB, free: 10.78 MB / 0.8698 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003901/0.9899, allocations: 1.556 MB / 1.292 GB, free: 9.219 MB / 0.8698 GB Notification: Performance of NFPackage.collectConstants: time 0.000448/0.9903, allocations: 84 kB / 1.292 GB, free: 9.137 MB / 0.8698 GB Notification: Performance of NFFlatten.collectFunctions: time 0.008328/0.9987, allocations: 3.78 MB / 1.296 GB, free: 5.348 MB / 0.8698 GB Notification: Performance of NFScalarize.scalarize: time 0.001308/1, allocations: 0.6305 MB / 1.296 GB, free: 4.715 MB / 0.8698 GB Notification: Performance of NFVerifyModel.verify: time 0.001969/1.002, allocations: 1.097 MB / 1.297 GB, free: 3.605 MB / 0.8698 GB Notification: Performance of NFConvertDAE.convert: time 0.008698/1.011, allocations: 4.478 MB / 1.302 GB, free: 15.11 MB / 0.8855 GB Notification: Performance of FrontEnd - DAE generated: time 6.142e-06/1.011, allocations: 0 / 1.302 GB, free: 15.11 MB / 0.8855 GB Notification: Performance of FrontEnd: time 2.675e-06/1.011, allocations: 0 / 1.302 GB, free: 15.11 MB / 0.8855 GB Notification: Performance of Transformations before backend: time 6.852e-05/1.011, allocations: 0 / 1.302 GB, free: 15.11 MB / 0.8855 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 334 * Number of variables: 334 Notification: Performance of Generate backend data structure: time 0.005367/1.016, allocations: 2.473 MB / 1.304 GB, free: 12.57 MB / 0.8855 GB Notification: Performance of prepare preOptimizeDAE: time 5.032e-05/1.016, allocations: 8.031 kB / 1.304 GB, free: 12.57 MB / 0.8855 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005004/1.021, allocations: 0.8205 MB / 1.305 GB, free: 11.74 MB / 0.8855 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003656/1.025, allocations: 1.649 MB / 1.307 GB, free: 10.04 MB / 0.8855 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003864/1.025, allocations: 174.8 kB / 1.307 GB, free: 9.871 MB / 0.8855 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002545/1.026, allocations: 143.9 kB / 1.307 GB, free: 9.73 MB / 0.8855 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003395/1.029, allocations: 1.702 MB / 1.308 GB, free: 7.949 MB / 0.8855 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.932e-05/1.029, allocations: 0 / 1.308 GB, free: 7.949 MB / 0.8855 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001317/1.029, allocations: 56 kB / 1.309 GB, free: 7.895 MB / 0.8855 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.166e-05/1.029, allocations: 54.52 kB / 1.309 GB, free: 7.84 MB / 0.8855 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003267/1.033, allocations: 1.485 MB / 1.31 GB, free: 6.348 MB / 0.8855 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 0.01085/1.043, allocations: 7.631 MB / 1.318 GB, free: 14.17 MB / 0.9011 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002684/1.046, allocations: 1.665 MB / 1.319 GB, free: 12.37 MB / 0.9011 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001066/1.047, allocations: 0.5398 MB / 1.32 GB, free: 11.83 MB / 0.9011 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00132/1.049, allocations: 0.8142 MB / 1.32 GB, free: 10.87 MB / 0.9011 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001218/1.05, allocations: 0.5832 MB / 1.321 GB, free: 10.27 MB / 0.9011 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0008748/1.051, allocations: 127.2 kB / 1.321 GB, free: 10.15 MB / 0.9011 GB Notification: Performance of pre-optimization done (n=84): time 2.945e-06/1.051, allocations: 0 / 1.321 GB, free: 10.15 MB / 0.9011 GB Notification: Performance of matching and sorting (n=84): time 0.004009/1.055, allocations: 1.664 MB / 1.323 GB, free: 8.457 MB / 0.9011 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.38e-05/1.055, allocations: 137.5 kB / 1.323 GB, free: 8.293 MB / 0.9011 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002176/1.057, allocations: 1.624 MB / 1.324 GB, free: 6.621 MB / 0.9011 GB Notification: Performance of collectPreVariables (initialization): time 0.0001106/1.057, allocations: 53.69 kB / 1.325 GB, free: 6.562 MB / 0.9011 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008167/1.058, allocations: 0.9282 MB / 1.325 GB, free: 5.625 MB / 0.9011 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002704/1.058, allocations: 299.7 kB / 1.326 GB, free: 5.328 MB / 0.9011 GB Notification: Performance of simplifyInitialFunctions (initialization): time 5.685e-05/1.058, allocations: 24 kB / 1.326 GB, free: 5.305 MB / 0.9011 GB Notification: Performance of setup shared object (initialization): time 0.000131/1.058, allocations: 345.9 kB / 1.326 GB, free: 4.961 MB / 0.9011 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001032/1.059, allocations: 482.3 kB / 1.327 GB, free: 4.488 MB / 0.9011 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001311/1.061, allocations: 0.847 MB / 1.327 GB, free: 3.484 MB / 0.9011 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002285/1.063, allocations: 1.29 MB / 1.329 GB, free: 2.07 MB / 0.9011 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.636e-06/1.063, allocations: 4 kB / 1.329 GB, free: 2.066 MB / 0.9011 GB Notification: Performance of matching and sorting (n=138) (initialization): time 0.003025/1.066, allocations: 1.509 MB / 1.33 GB, free: 0.5469 MB / 0.9011 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002482/1.066, allocations: 365.5 kB / 1.33 GB, free: 68 kB / 0.9011 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.845e-05/1.066, allocations: 15.98 kB / 1.33 GB, free: 52 kB / 0.9011 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.716e-05/1.066, allocations: 12 kB / 1.33 GB, free: 40 kB / 0.9011 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.5236/1.59, allocations: 275 kB / 1.331 GB, free: 253.6 MB / 0.9011 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.893e-05/1.59, allocations: 19.19 kB / 1.331 GB, free: 253.6 MB / 0.9011 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001988/1.592, allocations: 163.7 kB / 1.331 GB, free: 253.6 MB / 0.9011 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001723/1.592, allocations: 51.11 kB / 1.331 GB, free: 253.6 MB / 0.9011 GB Notification: Performance of prepare postOptimizeDAE: time 1.736e-05/1.592, allocations: 5.625 kB / 1.331 GB, free: 253.6 MB / 0.9011 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.003152/1.596, allocations: 1.304 MB / 1.332 GB, free: 253.4 MB / 0.9011 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.549e-05/1.596, allocations: 10.2 kB / 1.332 GB, free: 253.4 MB / 0.9011 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.225e-05/1.596, allocations: 13.88 kB / 1.332 GB, free: 253.4 MB / 0.9011 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001227/1.597, allocations: 277.1 kB / 1.333 GB, free: 253.4 MB / 0.9011 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.519e-05/1.597, allocations: 15.27 kB / 1.333 GB, free: 253.4 MB / 0.9011 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001868/1.599, allocations: 168.3 kB / 1.333 GB, free: 253.4 MB / 0.9011 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001171/1.599, allocations: 53.69 kB / 1.333 GB, free: 253.4 MB / 0.9011 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 37 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition1,$PRE.TSet.T_start,TSet.T_start,$PRE.TSet.count,TSet.count,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (134): * Single equations (assignments): 130 * Array equations: 2 * Algorithm blocks: 1 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.00105/1.6, allocations: 0.5422 MB / 1.333 GB, free: 253 MB / 0.9011 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000331/1.6, allocations: 178 kB / 1.333 GB, free: 253 MB / 0.9011 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002924/1.603, allocations: 1.212 MB / 1.335 GB, free: 252.6 MB / 0.9011 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.293e-05/1.603, allocations: 8.406 kB / 1.335 GB, free: 252.6 MB / 0.9011 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.947e-06/1.603, allocations: 1.406 kB / 1.335 GB, free: 252.6 MB / 0.9011 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002317/1.606, allocations: 1.278 MB / 1.336 GB, free: 251.8 MB / 0.9011 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 0.006087/1.612, allocations: 2.98 MB / 1.339 GB, free: 250.5 MB / 0.9011 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.071e-06/1.612, allocations: 1.406 kB / 1.339 GB, free: 250.5 MB / 0.9011 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001032/1.613, allocations: 203.6 kB / 1.339 GB, free: 250.4 MB / 0.9011 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002625/1.613, allocations: 45.47 kB / 1.339 GB, free: 250.4 MB / 0.9011 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.279e-05/1.613, allocations: 24.98 kB / 1.339 GB, free: 250.4 MB / 0.9011 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001133/1.614, allocations: 1.436 MB / 1.34 GB, free: 249 MB / 0.9011 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.793e-06/1.614, allocations: 1.344 kB / 1.34 GB, free: 249 MB / 0.9011 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003718/1.618, allocations: 1.851 MB / 1.342 GB, free: 248.3 MB / 0.9011 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008939/1.619, allocations: 349.1 kB / 1.343 GB, free: 248.2 MB / 0.9011 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002114/1.619, allocations: 21.02 kB / 1.343 GB, free: 248.2 MB / 0.9011 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001226/1.62, allocations: 154.5 kB / 1.343 GB, free: 248.1 MB / 0.9011 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001591/1.621, allocations: 59.19 kB / 1.343 GB, free: 248.1 MB / 0.9011 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.278e-05/1.621, allocations: 36.3 kB / 1.343 GB, free: 248.1 MB / 0.9011 GB Notification: Performance of sorting global known variables: time 0.001585/1.622, allocations: 1.086 MB / 1.344 GB, free: 247.7 MB / 0.9011 GB Notification: Performance of sort global known variables: time 3.81e-07/1.622, allocations: 0.9062 kB / 1.344 GB, free: 247.7 MB / 0.9011 GB Notification: Performance of remove unused functions: time 0.002833/1.625, allocations: 1.018 MB / 1.345 GB, free: 247.6 MB / 0.9011 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 8 (vol.dynBal.U,vol.dynBal.m,vol.dynBal.mXi[1],mov.filter.x[1],mov.filter.x[2],conPI.I.y,THeaOut.T,hea.outCon.T) * 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 (84): * Single equations (assignments): 81 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.00163/1.627, allocations: 0.6906 MB / 1.346 GB, free: 247.4 MB / 0.9011 GB Notification: Performance of simCode: created initialization part: time 0.004538/1.631, allocations: 1.951 MB / 1.348 GB, free: 246.6 MB / 0.9011 GB Notification: Performance of simCode: created event and clocks part: time 6.562e-06/1.631, allocations: 0 / 1.348 GB, free: 246.6 MB / 0.9011 GB Notification: Performance of simCode: created simulation system equations: time 0.00143/1.633, allocations: 0.6406 MB / 1.348 GB, free: 246.4 MB / 0.9011 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004959/1.638, allocations: 0.8159 MB / 1.349 GB, free: 246.2 MB / 0.9011 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008256/1.646, allocations: 4.55 MB / 1.353 GB, free: 243.7 MB / 0.9011 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009825/1.647, allocations: 1.501 MB / 1.355 GB, free: 242.9 MB / 0.9011 GB Notification: Performance of simCode: alias equations: time 0.002363/1.649, allocations: 449.7 kB / 1.355 GB, free: 242.8 MB / 0.9011 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004028/1.65, allocations: 137.1 kB / 1.355 GB, free: 242.8 MB / 0.9011 GB Notification: Performance of SimCode: time 7.01e-07/1.65, allocations: 0 / 1.355 GB, free: 242.8 MB / 0.9011 GB Notification: Performance of Templates: time 0.05711/1.707, allocations: 32.72 MB / 1.387 GB, free: 240.6 MB / 0.9011 GB make -j1 -f Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T.makefile (rm -f Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T.pipe ; mkfifo Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T.pipe >> ../files/Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T.sim & ./Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.HeatExchangers.Examples.AirHeater_T.pipe 2>&1)