Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger.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.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger") translateModel(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009016/0.0009019, allocations: 91.3 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 0.0009396/0.0009396, 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 1.699/1.699, allocations: 205.4 MB / 222.1 MB, free: 5.527 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 1.65/1.65, allocations: 252 MB / 0.5102 GB, free: 4.75 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 0.0009112/0.0009113, allocations: 16 kB / 0.6243 GB, free: 1.043 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6676/0.6685, allocations: 106.3 MB / 0.7281 GB, free: 11.36 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger): time 0.1341/0.8027, allocations: 149.5 MB / 0.8741 GB, free: 5.488 MB / 0.6856 GB Notification: Performance of NFInst.instExpressions: time 0.04251/0.8452, allocations: 30.26 MB / 0.9037 GB, free: 7.176 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.007432/0.8527, allocations: 170.8 kB / 0.9038 GB, free: 7.008 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.005006/0.8577, allocations: 1.226 MB / 0.905 GB, free: 5.773 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.01257/0.8703, allocations: 3.468 MB / 0.9084 GB, free: 2.293 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.6047/1.475, allocations: 3.191 MB / 0.9115 GB, free: 31.33 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.01881/1.494, allocations: 9.231 MB / 0.9205 GB, free: 31.33 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.006442/1.5, allocations: 2.192 MB / 0.9227 GB, free: 31.11 MB / 0.7169 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01005/1.51, allocations: 2.926 MB / 0.9255 GB, free: 31.09 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.006868/1.517, allocations: 2.186 MB / 0.9277 GB, free: 31.08 MB / 0.7169 GB Notification: Performance of NFPackage.collectConstants: time 0.001559/1.519, allocations: 116.5 kB / 0.9278 GB, free: 31.08 MB / 0.7169 GB Notification: Performance of NFFlatten.collectFunctions: time 0.008349/1.527, allocations: 1.898 MB / 0.9296 GB, free: 31.08 MB / 0.7169 GB Notification: Performance of NFScalarize.scalarize: time 0.00196/1.529, allocations: 0.5347 MB / 0.9302 GB, free: 31.08 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.002737/1.532, allocations: 0.7194 MB / 0.9309 GB, free: 31.05 MB / 0.7169 GB Notification: Performance of NFConvertDAE.convert: time 0.008755/1.541, allocations: 4.663 MB / 0.9354 GB, free: 30.91 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 1.096e-05/1.541, allocations: 0 / 0.9354 GB, free: 30.91 MB / 0.7169 GB Notification: Performance of FrontEnd: time 3.877e-06/1.541, allocations: 0 / 0.9354 GB, free: 30.91 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 0.0002721/1.541, allocations: 0 / 0.9354 GB, free: 30.91 MB / 0.7169 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 494 * Number of variables: 494 Notification: Performance of Generate backend data structure: time 0.01004/1.551, allocations: 3.343 MB / 0.9387 GB, free: 29.17 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 4.389e-05/1.551, allocations: 9.969 kB / 0.9387 GB, free: 29.17 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.004055/1.555, allocations: 0.8553 MB / 0.9395 GB, free: 28.94 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007604/1.563, allocations: 2.813 MB / 0.9423 GB, free: 28.39 MB / 0.7169 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001262/1.564, allocations: 416.7 kB / 0.9427 GB, free: 28.36 MB / 0.7169 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0009538/1.565, allocations: 203 kB / 0.9429 GB, free: 28.36 MB / 0.7169 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.007325/1.573, allocations: 2.519 MB / 0.9453 GB, free: 28.09 MB / 0.7169 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.28e-05/1.573, allocations: 5.391 kB / 0.9453 GB, free: 28.09 MB / 0.7169 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005428/1.573, allocations: 80.84 kB / 0.9454 GB, free: 28.09 MB / 0.7169 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.96e-05/1.573, allocations: 51.62 kB / 0.9455 GB, free: 28.09 MB / 0.7169 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006283/1.58, allocations: 2.354 MB / 0.9478 GB, free: 28.04 MB / 0.7169 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 0.02117/1.601, allocations: 12.65 MB / 0.9601 GB, free: 21.92 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003599/1.605, allocations: 1.521 MB / 0.9616 GB, free: 21.85 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0019/1.607, allocations: 0.8986 MB / 0.9625 GB, free: 21.82 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001359/1.608, allocations: 1.824 MB / 0.9643 GB, free: 19.85 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002215/1.61, allocations: 0.9706 MB / 0.9652 GB, free: 19.75 MB / 0.7169 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001875/1.612, allocations: 194.3 kB / 0.9654 GB, free: 19.67 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=127): time 1.093e-05/1.612, allocations: 0 / 0.9654 GB, free: 19.67 MB / 0.7169 GB Notification: Performance of matching and sorting (n=127): time 0.007903/1.62, allocations: 2.989 MB / 0.9683 GB, free: 19.16 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.206e-05/1.62, allocations: 177.9 kB / 0.9685 GB, free: 18.97 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006753/1.627, allocations: 2.656 MB / 0.9711 GB, free: 18.59 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 0.0005857/1.628, allocations: 50.61 kB / 0.9711 GB, free: 18.55 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.001728/1.629, allocations: 1.352 MB / 0.9724 GB, free: 18.06 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007994/1.63, allocations: 438 kB / 0.9729 GB, free: 17.75 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002835/1.63, allocations: 32.59 kB / 0.9729 GB, free: 17.75 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 0.0001627/1.631, allocations: 366.3 kB / 0.9732 GB, free: 17.42 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002184/1.633, allocations: 0.8185 MB / 0.974 GB, free: 17.28 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002477/1.635, allocations: 1.23 MB / 0.9752 GB, free: 16.7 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002328/1.638, allocations: 0.9434 MB / 0.9762 GB, free: 16.54 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.71e-05/1.638, allocations: 2.5 kB / 0.9762 GB, free: 16.54 MB / 0.7169 GB Notification: Performance of matching and sorting (n=196) (initialization): time 0.006375/1.644, allocations: 2.549 MB / 0.9787 GB, free: 15.95 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002971/1.644, allocations: 399.8 kB / 0.979 GB, free: 15.48 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.894e-05/1.644, allocations: 6.844 kB / 0.979 GB, free: 15.48 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000738/1.645, allocations: 167.2 kB / 0.9792 GB, free: 15.43 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001838/1.647, allocations: 429.9 kB / 0.9796 GB, free: 15.34 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008259/1.648, allocations: 1.21 MB / 0.9808 GB, free: 14.27 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003409/1.651, allocations: 300.1 kB / 0.9811 GB, free: 14.17 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003205/1.652, allocations: 81.67 kB / 0.9812 GB, free: 14.16 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 1.317e-05/1.652, allocations: 6.688 kB / 0.9812 GB, free: 14.16 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.005197/1.657, allocations: 2.237 MB / 0.9834 GB, free: 13.77 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.537e-05/1.657, allocations: 12.77 kB / 0.9834 GB, free: 13.77 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003549/1.657, allocations: 103.7 kB / 0.9835 GB, free: 13.73 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0017/1.659, allocations: 435.4 kB / 0.9839 GB, free: 13.65 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002672/1.662, allocations: 3.273 MB / 0.9871 GB, free: 10.77 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003332/1.665, allocations: 278.9 kB / 0.9873 GB, free: 10.68 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004085/1.665, allocations: 83.17 kB / 0.9874 GB, free: 10.67 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 38 * Number of states: 0 () * Number of discrete variables: 8 ($whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,$PRE.TCon_in.nextEvent,TCon_in.nextEvent,TCon_in.nextEventScaled,hex1.con.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (181): * Single equations (assignments): 176 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 2 {1 4,1 4} Notification: Performance of prepare postOptimizeDAE: time 0.002325/1.668, allocations: 0.7128 MB / 0.9881 GB, free: 10.42 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001219/1.669, allocations: 304.5 kB / 0.9884 GB, free: 10.26 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006507/1.675, allocations: 2.576 MB / 0.9909 GB, free: 9.629 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.48e-05/1.676, allocations: 23.27 kB / 0.9909 GB, free: 9.625 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.024e-06/1.676, allocations: 3.656 kB / 0.9909 GB, free: 9.625 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.00388/1.679, allocations: 2.114 MB / 0.993 GB, free: 9.012 MB / 0.7169 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01118/1.691, allocations: 5.214 MB / 0.9981 GB, free: 5.48 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.345e-05/1.691, allocations: 0 / 0.9981 GB, free: 5.48 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001343/1.692, allocations: 325.2 kB / 0.9984 GB, free: 5.188 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002917/1.692, allocations: 107.4 kB / 0.9985 GB, free: 5.102 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001492/1.693, allocations: 51.25 kB / 0.9986 GB, free: 5.074 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0006243/1.693, allocations: 1.179 MB / 0.9997 GB, free: 3.918 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.382e-06/1.693, allocations: 8 kB / 0.9997 GB, free: 3.91 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006979/1.7, allocations: 3.564 MB / 1.003 GB, free: 1.293 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002459/1.703, allocations: 0.6699 MB / 1.004 GB, free: 0.7852 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001157/1.704, allocations: 36.62 kB / 1.004 GB, free: 0.7695 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002857/1.707, allocations: 254.6 kB / 1.004 GB, free: 0.543 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002042/1.707, allocations: 98.25 kB / 1.004 GB, free: 476 kB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002159/1.707, allocations: 71.44 kB / 1.004 GB, free: 416 kB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.004546/1.712, allocations: 1.81 MB / 1.006 GB, free: 15.14 MB / 0.7325 GB Notification: Performance of sort global known variables: time 4.61e-07/1.712, allocations: 0 / 1.006 GB, free: 15.14 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.007503/1.719, allocations: 1.446 MB / 1.007 GB, free: 13.79 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 11 * Number of states: 6 (hex1.thrWayVal.vol.dynBal.U,hex1.thrWayVal.filter.x[1],hex1.thrWayVal.filter.x[2],hex1.con.I.y,TSen1.T,TSen2.T) * Number of discrete variables: 6 ($whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,TCon_in.nextEvent,TCon_in.nextEventScaled) * Number of discrete states: 6 (TCon_in.nextEvent,TCon_in.last,TCon_in.nextEventScaled,TCon_in.b,TCon_in.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (144): * Single equations (assignments): 130 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 11 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 2 {1 4,1 4} Notification: Performance of Backend phase and start with SimCode phase: time 0.002326/1.722, allocations: 0.738 MB / 1.008 GB, free: 13.18 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.009344/1.731, allocations: 3.626 MB / 1.012 GB, free: 10.46 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 1.115e-05/1.731, allocations: 5.125 kB / 1.012 GB, free: 10.45 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.002607/1.734, allocations: 1.092 MB / 1.013 GB, free: 9.676 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.009009/1.743, allocations: 1.49 MB / 1.014 GB, free: 8.473 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01655/1.759, allocations: 6.638 MB / 1.021 GB, free: 2.371 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002469/1.762, allocations: 1.79 MB / 1.022 GB, free: 0.5781 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.004785/1.767, allocations: 0.6994 MB / 1.023 GB, free: 15.94 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001105/1.768, allocations: 237.2 kB / 1.023 GB, free: 15.72 MB / 0.7481 GB Notification: Performance of SimCode: time 1.413e-06/1.768, allocations: 0 / 1.023 GB, free: 15.72 MB / 0.7481 GB Notification: Performance of Templates: time 0.1042/1.872, allocations: 57.8 MB / 1.08 GB, free: 7.168 MB / 0.795 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger.sim & ./Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger.pipe 2>&1) Environment - environmentSimulation: