Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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(IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Interfaces_Examples_ReverseFlowMassExchanger",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Interfaces_Examples_ReverseFlowMassExchanger",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 0.001262/0.001262, allocations: 110.9 kB / 16.41 MB, free: 5.984 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001421/0.001421, allocations: 194.6 kB / 17.34 MB, free: 5.602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.319/1.319, allocations: 222.9 MB / 241 MB, free: 15.17 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.8046/0.8046, allocations: 122.9 MB / 414.1 MB, free: 15.84 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001226/0.001226, allocations: 59.2 kB / 0.568 GB, free: 28.95 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1399/0.1412, allocations: 77.94 MB / 0.6441 GB, free: 9.516 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger): time 0.6812/0.8225, allocations: 328.4 MB / 0.9648 GB, free: 3.141 MB / 0.7169 GB Notification: Performance of NFInst.instExpressions: time 0.03935/0.8618, allocations: 30.06 MB / 0.9941 GB, free: 4.988 MB / 0.7481 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00395/0.8658, allocations: 95.44 kB / 0.9942 GB, free: 4.895 MB / 0.7481 GB Notification: Performance of NFTyping.typeComponents: time 0.00599/0.8718, allocations: 2.167 MB / 0.9963 GB, free: 2.715 MB / 0.7481 GB Notification: Performance of NFTyping.typeBindings: time 0.01517/0.8871, allocations: 5.176 MB / 1.001 GB, free: 13.52 MB / 0.7637 GB Notification: Performance of NFTyping.typeClassSections: time 0.009198/0.8963, allocations: 3.696 MB / 1.005 GB, free: 9.84 MB / 0.7637 GB Notification: Performance of NFFlatten.flatten: time 0.009748/0.9061, allocations: 6.96 MB / 1.012 GB, free: 2.863 MB / 0.7637 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004544/0.9106, allocations: 2.869 MB / 1.015 GB, free: 15.93 MB / 0.7794 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01367/0.9243, allocations: 5.465 MB / 1.02 GB, free: 10.48 MB / 0.7794 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005006/0.9294, allocations: 2.419 MB / 1.022 GB, free: 8.062 MB / 0.7794 GB Notification: Performance of NFPackage.collectConstants: time 0.00166/0.931, allocations: 299.9 kB / 1.023 GB, free: 7.77 MB / 0.7794 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01072/0.9418, allocations: 4.825 MB / 1.027 GB, free: 2.934 MB / 0.7794 GB Notification: Performance of NFScalarize.scalarize: time 0.002009/0.9438, allocations: 1.067 MB / 1.028 GB, free: 1.863 MB / 0.7794 GB Notification: Performance of NFVerifyModel.verify: time 0.004031/0.9479, allocations: 1.738 MB / 1.03 GB, free: 120 kB / 0.7794 GB Notification: Performance of NFConvertDAE.convert: time 0.0142/0.9621, allocations: 5.77 MB / 1.036 GB, free: 10.33 MB / 0.795 GB Notification: Performance of FrontEnd - DAE generated: time 6.693e-06/0.9621, allocations: 0 / 1.036 GB, free: 10.33 MB / 0.795 GB Notification: Performance of FrontEnd: time 2.335e-06/0.9621, allocations: 0 / 1.036 GB, free: 10.33 MB / 0.795 GB Notification: Performance of Transformations before backend: time 0.0001782/0.9623, allocations: 0 / 1.036 GB, free: 10.33 MB / 0.795 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 536 * Number of variables: 536 Notification: Performance of Generate backend data structure: time 0.01077/0.9731, allocations: 3.8 MB / 1.039 GB, free: 6.438 MB / 0.795 GB Notification: Performance of prepare preOptimizeDAE: time 5.053e-05/0.9732, allocations: 8.625 kB / 1.039 GB, free: 6.43 MB / 0.795 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0008252/0.974, allocations: 303.6 kB / 1.04 GB, free: 6.121 MB / 0.795 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01031/0.9843, allocations: 1.481 MB / 1.041 GB, free: 4.637 MB / 0.795 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005636/0.99, allocations: 2.11 MB / 1.043 GB, free: 2.449 MB / 0.795 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001964/0.9902, allocations: 164.1 kB / 1.043 GB, free: 2.285 MB / 0.795 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006628/0.9909, allocations: 220 kB / 1.044 GB, free: 2.07 MB / 0.795 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.007383/0.9983, allocations: 3.031 MB / 1.047 GB, free: 14.9 MB / 0.8106 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.58e-05/0.9984, allocations: 7.938 kB / 1.047 GB, free: 14.89 MB / 0.8106 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004102/0.9988, allocations: 88 kB / 1.047 GB, free: 14.81 MB / 0.8106 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.864e-05/0.9989, allocations: 92 kB / 1.047 GB, free: 14.71 MB / 0.8106 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.007584/1.006, allocations: 3.107 MB / 1.05 GB, free: 11.59 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 removeSimpleEquations (simulation): time 0.3098/1.316, allocations: 14.03 MB / 1.063 GB, free: 326.4 MB / 0.8106 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004225/1.321, allocations: 1.653 MB / 1.065 GB, free: 326.3 MB / 0.8106 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001781/1.322, allocations: 0.7725 MB / 1.066 GB, free: 326.3 MB / 0.8106 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005831/1.323, allocations: 327.2 kB / 1.066 GB, free: 326 MB / 0.8106 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.158e-05/1.323, allocations: 51.8 kB / 1.066 GB, free: 326 MB / 0.8106 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001267/1.324, allocations: 205 kB / 1.066 GB, free: 326 MB / 0.8106 GB Notification: Performance of pre-optimization done (n=110): time 5.42e-06/1.324, allocations: 0 / 1.066 GB, free: 326 MB / 0.8106 GB Notification: Performance of matching and sorting (n=110): time 0.006384/1.331, allocations: 2.372 MB / 1.069 GB, free: 325.6 MB / 0.8106 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.251e-05/1.331, allocations: 67.38 kB / 1.069 GB, free: 325.5 MB / 0.8106 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004331/1.335, allocations: 2.515 MB / 1.071 GB, free: 324.6 MB / 0.8106 GB Notification: Performance of collectPreVariables (initialization): time 0.0002543/1.335, allocations: 54.64 kB / 1.071 GB, free: 324.6 MB / 0.8106 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008197/1.336, allocations: 1.301 MB / 1.073 GB, free: 323.7 MB / 0.8106 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003089/1.337, allocations: 400.5 kB / 1.073 GB, free: 323.4 MB / 0.8106 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006632/1.337, allocations: 390.4 kB / 1.073 GB, free: 323.2 MB / 0.8106 GB Notification: Performance of setup shared object (initialization): time 4.597e-05/1.337, allocations: 301.1 kB / 1.074 GB, free: 322.9 MB / 0.8106 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002657/1.34, allocations: 0.9465 MB / 1.074 GB, free: 322.7 MB / 0.8106 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003055/1.343, allocations: 1.563 MB / 1.076 GB, free: 321.6 MB / 0.8106 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004653/1.348, allocations: 2.238 MB / 1.078 GB, free: 320.5 MB / 0.8106 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.386e-05/1.348, allocations: 6.094 kB / 1.078 GB, free: 320.5 MB / 0.8106 GB Notification: Performance of matching and sorting (n=210) (initialization): time 0.0067/1.354, allocations: 2.759 MB / 1.081 GB, free: 319.5 MB / 0.8106 GB Notification: Performance of prepare postOptimizeDAE: time 8.895e-05/1.354, allocations: 73.91 kB / 1.081 GB, free: 319.5 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.446e-05/1.355, allocations: 13.22 kB / 1.081 GB, free: 319.5 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.09e-05/1.355, allocations: 23.38 kB / 1.081 GB, free: 319.5 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002971/1.358, allocations: 0.5423 MB / 1.082 GB, free: 319.4 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0009364/1.359, allocations: 2.39 MB / 1.084 GB, free: 317 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003676/1.362, allocations: 280.5 kB / 1.084 GB, free: 317 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002445/1.362, allocations: 93.78 kB / 1.084 GB, free: 317 MB / 0.8106 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00338/1.366, allocations: 1.383 MB / 1.086 GB, free: 316.5 MB / 0.8106 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002638/1.369, allocations: 1.562 MB / 1.087 GB, free: 315.4 MB / 0.8106 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.004135/1.373, allocations: 2.223 MB / 1.089 GB, free: 314.3 MB / 0.8106 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.158e-05/1.373, allocations: 3.969 kB / 1.089 GB, free: 314.3 MB / 0.8106 GB Notification: Performance of matching and sorting (n=210) (initialization_lambda0): time 0.005966/1.379, allocations: 2.75 MB / 1.092 GB, free: 313.3 MB / 0.8106 GB Notification: Performance of prepare postOptimizeDAE: time 5.12e-05/1.379, allocations: 76.62 kB / 1.092 GB, free: 313.2 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.645e-05/1.379, allocations: 11.88 kB / 1.092 GB, free: 313.2 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.906e-05/1.379, allocations: 27.53 kB / 1.092 GB, free: 313.2 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002281/1.381, allocations: 0.4964 MB / 1.093 GB, free: 313.2 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.701e-05/1.381, allocations: 35.48 kB / 1.093 GB, free: 313.2 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003387/1.385, allocations: 296.6 kB / 1.093 GB, free: 313.1 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001687/1.385, allocations: 85.73 kB / 1.093 GB, free: 313.1 MB / 0.8106 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 59 * Number of states: 0 () * Number of discrete variables: 4 (masExcRev.i2_w,masExcRev.i1_w,masExcFor.i2_w,masExcFor.i1_w) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (208): * Single equations (assignments): 202 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 4 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 4 systems {1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0005654/1.385, allocations: 301.2 kB / 1.093 GB, free: 312.9 MB / 0.8106 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005049/1.386, allocations: 278.8 kB / 1.094 GB, free: 312.7 MB / 0.8106 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003907/1.39, allocations: 1.838 MB / 1.095 GB, free: 311.8 MB / 0.8106 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.308e-06/1.39, allocations: 11.84 kB / 1.095 GB, free: 311.8 MB / 0.8106 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.292e-06/1.39, allocations: 0 / 1.095 GB, free: 311.8 MB / 0.8106 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.049e-05/1.39, allocations: 11.91 kB / 1.095 GB, free: 311.8 MB / 0.8106 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007616/1.397, allocations: 4.489 MB / 1.1 GB, free: 309 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.024e-05/1.397, allocations: 10.8 kB / 1.1 GB, free: 309 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001681/1.399, allocations: 308.8 kB / 1.1 GB, free: 308.9 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.77e-05/1.399, allocations: 10.91 kB / 1.1 GB, free: 308.9 MB / 0.8106 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.933e-05/1.399, allocations: 29.61 kB / 1.1 GB, free: 308.9 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008762/1.4, allocations: 2.366 MB / 1.102 GB, free: 306.5 MB / 0.8106 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.1e-05/1.4, allocations: 16.91 kB / 1.102 GB, free: 306.5 MB / 0.8106 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003776/1.404, allocations: 1.987 MB / 1.104 GB, free: 305.3 MB / 0.8106 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001194/1.405, allocations: 0.5408 MB / 1.105 GB, free: 304.8 MB / 0.8106 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003904/1.406, allocations: 32.88 kB / 1.105 GB, free: 304.8 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002151/1.408, allocations: 177.2 kB / 1.105 GB, free: 304.7 MB / 0.8106 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001101/1.408, allocations: 86.38 kB / 1.105 GB, free: 304.7 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001252/1.408, allocations: 60.64 kB / 1.105 GB, free: 304.7 MB / 0.8106 GB Notification: Performance of sorting global known variables: time 0.002425/1.41, allocations: 1.733 MB / 1.107 GB, free: 303.4 MB / 0.8106 GB Notification: Performance of sort global known variables: time 1.7e-07/1.41, allocations: 3.844 kB / 1.107 GB, free: 303.4 MB / 0.8106 GB Notification: Performance of remove unused functions: time 0.002907/1.413, allocations: 1.293 MB / 1.108 GB, free: 302.1 MB / 0.8106 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 25 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (110): * Single equations (assignments): 106 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 4 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 4 systems {1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.004163/1.417, allocations: 2.811 MB / 1.111 GB, free: 299.3 MB / 0.8106 GB Notification: Performance of simCode: created initialization part: time 0.0076/1.425, allocations: 3.561 MB / 1.114 GB, free: 295.7 MB / 0.8106 GB Notification: Performance of simCode: created event and clocks part: time 8.646e-06/1.425, allocations: 4.125 kB / 1.114 GB, free: 295.7 MB / 0.8106 GB Notification: Performance of simCode: created simulation system equations: time 0.001679/1.427, allocations: 0.8071 MB / 1.115 GB, free: 294.9 MB / 0.8106 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005315/1.432, allocations: 1.204 MB / 1.116 GB, free: 293.7 MB / 0.8106 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02824/1.46, allocations: 18.82 MB / 1.135 GB, free: 274.2 MB / 0.8106 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008599/1.461, allocations: 1.697 MB / 1.136 GB, free: 272.5 MB / 0.8106 GB Notification: Performance of simCode: alias equations: time 0.002783/1.464, allocations: 0.7802 MB / 1.137 GB, free: 271.7 MB / 0.8106 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001186/1.465, allocations: 1.011 MB / 1.138 GB, free: 270.7 MB / 0.8106 GB Notification: Performance of SimCode: time 7.11e-07/1.465, allocations: 0 / 1.138 GB, free: 270.7 MB / 0.8106 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.08699/1.552, allocations: 65.09 MB / 1.202 GB, free: 206.3 MB / 0.8106 GB Notification: Performance of buildModelFMU: Generate platform static: time 16.76/18.32, allocations: 7.328 kB / 1.202 GB, free: 206.3 MB / 0.8106 GB (rm -f IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.sim & python3 -m fmpy simulate --output-file IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 IBPSA_latest_IBPSA_Fluid_Interfaces_Examples_ReverseFlowMassExchanger.fmu > IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.pipe 2>&1)