Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.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/BuildSysPro 3.6.0/package.mo", uses=false) Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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: translateModel(BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger") translateModel(BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001475/0.001475, allocations: 110 kB / 16.41 MB, free: 6.453 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001409/0.001409, allocations: 185.5 kB / 17.34 MB, free: 5.738 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.332/1.332, allocations: 222.9 MB / 241 MB, free: 15.15 MB / 206.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/package.mo): time 0.8507/0.8507, allocations: 143.1 MB / 434.3 MB, free: 12 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001768/0.001768, allocations: 67.62 kB / 0.5962 GB, free: 12.37 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.158/0.1598, allocations: 82.03 MB / 0.6763 GB, free: 10.44 MB / 0.5137 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger): time 0.6642/0.824, allocations: 329.6 MB / 0.9982 GB, free: 3.793 MB / 0.7637 GB Notification: Performance of NFInst.instExpressions: time 0.03835/0.8623, allocations: 30.16 MB / 1.028 GB, free: 5.547 MB / 0.795 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003236/0.8656, allocations: 99.44 kB / 1.028 GB, free: 5.449 MB / 0.795 GB Notification: Performance of NFTyping.typeComponents: time 0.005432/0.871, allocations: 2.195 MB / 1.03 GB, free: 3.242 MB / 0.795 GB Notification: Performance of NFTyping.typeBindings: time 0.013/0.884, allocations: 5.168 MB / 1.035 GB, free: 14.06 MB / 0.8106 GB Notification: Performance of NFTyping.typeClassSections: time 0.00912/0.8931, allocations: 3.703 MB / 1.039 GB, free: 10.37 MB / 0.8106 GB Notification: Performance of NFFlatten.flatten: time 0.01082/0.9039, allocations: 6.94 MB / 1.045 GB, free: 3.41 MB / 0.8106 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004266/0.9082, allocations: 2.422 MB / 1.048 GB, free: 0.9297 MB / 0.8106 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0138/0.922, allocations: 5.477 MB / 1.053 GB, free: 11.46 MB / 0.8262 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005157/0.9272, allocations: 2.425 MB / 1.055 GB, free: 9.035 MB / 0.8262 GB Notification: Performance of NFPackage.collectConstants: time 0.001098/0.9283, allocations: 296 kB / 1.056 GB, free: 8.746 MB / 0.8262 GB Notification: Performance of NFFlatten.collectFunctions: time 0.009958/0.9382, allocations: 4.829 MB / 1.06 GB, free: 3.906 MB / 0.8262 GB Notification: Performance of NFScalarize.scalarize: time 0.001944/0.9402, allocations: 1.098 MB / 1.062 GB, free: 2.805 MB / 0.8262 GB Notification: Performance of NFVerifyModel.verify: time 0.003084/0.9432, allocations: 1.738 MB / 1.063 GB, free: 1.059 MB / 0.8262 GB Notification: Performance of NFConvertDAE.convert: time 0.4491/1.392, allocations: 5.999 MB / 1.069 GB, free: 16.27 MB / 0.8262 GB Notification: Performance of FrontEnd - DAE generated: time 7.704e-06/1.392, allocations: 3.844 kB / 1.069 GB, free: 16.27 MB / 0.8262 GB Notification: Performance of FrontEnd: time 1.763e-06/1.392, allocations: 0 / 1.069 GB, free: 16.27 MB / 0.8262 GB Notification: Performance of Transformations before backend: time 0.0001783/1.393, allocations: 0 / 1.069 GB, free: 16.27 MB / 0.8262 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 0.01253/1.405, allocations: 3.775 MB / 1.073 GB, free: 14.51 MB / 0.8262 GB Notification: Performance of prepare preOptimizeDAE: time 4.416e-05/1.405, allocations: 8.688 kB / 1.073 GB, free: 14.51 MB / 0.8262 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00975/1.415, allocations: 1.198 MB / 1.074 GB, free: 14.33 MB / 0.8262 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005837/1.421, allocations: 2.097 MB / 1.076 GB, free: 13.75 MB / 0.8262 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002865/1.421, allocations: 171.1 kB / 1.076 GB, free: 13.74 MB / 0.8262 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001139/1.422, allocations: 219.5 kB / 1.076 GB, free: 13.74 MB / 0.8262 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.007066/1.429, allocations: 2.992 MB / 1.079 GB, free: 13.52 MB / 0.8262 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.587e-05/1.429, allocations: 0.9375 kB / 1.079 GB, free: 13.52 MB / 0.8262 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003354/1.43, allocations: 90.61 kB / 1.079 GB, free: 13.52 MB / 0.8262 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001213/1.43, allocations: 93.59 kB / 1.079 GB, free: 13.51 MB / 0.8262 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.007631/1.437, allocations: 3.104 MB / 1.083 GB, free: 13.48 MB / 0.8262 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 0.02419/1.462, allocations: 13.16 MB / 1.095 GB, free: 23.25 MB / 0.8419 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003809/1.465, allocations: 1.621 MB / 1.097 GB, free: 23.22 MB / 0.8419 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001656/1.467, allocations: 0.7923 MB / 1.098 GB, free: 23.21 MB / 0.8419 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006337/1.468, allocations: 326.8 kB / 1.098 GB, free: 22.93 MB / 0.8419 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.192e-05/1.468, allocations: 53.36 kB / 1.098 GB, free: 22.89 MB / 0.8419 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.002688/1.47, allocations: 423.7 kB / 1.098 GB, free: 22.79 MB / 0.8419 GB Notification: Performance of pre-optimization done (n=110): time 6.272e-06/1.47, allocations: 1.031 kB / 1.098 GB, free: 22.79 MB / 0.8419 GB Notification: Performance of matching and sorting (n=110): time 0.006182/1.477, allocations: 2.567 MB / 1.101 GB, free: 22.61 MB / 0.8419 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.54e-05/1.477, allocations: 63.22 kB / 1.101 GB, free: 22.55 MB / 0.8419 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003703/1.48, allocations: 2.51 MB / 1.104 GB, free: 22.3 MB / 0.8419 GB Notification: Performance of collectPreVariables (initialization): time 0.0003424/1.481, allocations: 63.06 kB / 1.104 GB, free: 22.27 MB / 0.8419 GB Notification: Performance of collectInitialEqns (initialization): time 0.000781/1.481, allocations: 1.293 MB / 1.105 GB, free: 21.79 MB / 0.8419 GB Notification: Performance of collectInitialBindings (initialization): time 0.000279/1.482, allocations: 404.7 kB / 1.105 GB, free: 21.53 MB / 0.8419 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006687/1.482, allocations: 420.3 kB / 1.106 GB, free: 21.49 MB / 0.8419 GB Notification: Performance of setup shared object (initialization): time 0.0001362/1.483, allocations: 306.7 kB / 1.106 GB, free: 21.19 MB / 0.8419 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002302/1.485, allocations: 1.012 MB / 1.107 GB, free: 21.17 MB / 0.8419 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002645/1.487, allocations: 1.645 MB / 1.109 GB, free: 20.45 MB / 0.8419 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004233/1.492, allocations: 2.385 MB / 1.111 GB, free: 19.85 MB / 0.8419 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.054e-05/1.492, allocations: 6.031 kB / 1.111 GB, free: 19.85 MB / 0.8419 GB Notification: Performance of matching and sorting (n=216) (initialization): time 0.006607/1.498, allocations: 2.935 MB / 1.114 GB, free: 19.55 MB / 0.8419 GB Notification: Performance of prepare postOptimizeDAE: time 9.06e-05/1.498, allocations: 67.98 kB / 1.114 GB, free: 19.48 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.645e-05/1.498, allocations: 16.09 kB / 1.114 GB, free: 19.48 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.605e-05/1.498, allocations: 26 kB / 1.114 GB, free: 19.48 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002809/1.501, allocations: 0.5789 MB / 1.114 GB, free: 19.48 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00164/1.503, allocations: 2.392 MB / 1.117 GB, free: 17.12 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00385/1.507, allocations: 290.8 kB / 1.117 GB, free: 17.11 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000253/1.507, allocations: 103.8 kB / 1.117 GB, free: 17.11 MB / 0.8419 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.003345/1.51, allocations: 1.454 MB / 1.119 GB, free: 17 MB / 0.8419 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002615/1.513, allocations: 1.638 MB / 1.12 GB, free: 16.25 MB / 0.8419 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00428/1.517, allocations: 2.362 MB / 1.122 GB, free: 15.64 MB / 0.8419 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.711e-05/1.517, allocations: 4.766 kB / 1.122 GB, free: 15.64 MB / 0.8419 GB Notification: Performance of matching and sorting (n=216) (initialization_lambda0): time 0.00647/1.524, allocations: 2.93 MB / 1.125 GB, free: 15.33 MB / 0.8419 GB Notification: Performance of prepare postOptimizeDAE: time 7.796e-05/1.524, allocations: 75.14 kB / 1.125 GB, free: 15.27 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.776e-05/1.524, allocations: 13.78 kB / 1.125 GB, free: 15.27 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.084e-05/1.524, allocations: 23.69 kB / 1.125 GB, free: 15.27 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002356/1.526, allocations: 0.529 MB / 1.126 GB, free: 15.25 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.896e-05/1.526, allocations: 31.8 kB / 1.126 GB, free: 15.25 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003572/1.53, allocations: 295.6 kB / 1.126 GB, free: 15.23 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000209/1.53, allocations: 97.97 kB / 1.126 GB, free: 15.23 MB / 0.8419 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 61 * 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 (214): * Single equations (assignments): 208 * 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 0.0006755/1.531, allocations: 299.1 kB / 1.127 GB, free: 15.05 MB / 0.8419 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005754/1.531, allocations: 275.2 kB / 1.127 GB, free: 14.9 MB / 0.8419 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004511/1.536, allocations: 1.999 MB / 1.129 GB, free: 14.78 MB / 0.8419 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.949e-06/1.536, allocations: 10.81 kB / 1.129 GB, free: 14.78 MB / 0.8419 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.336e-06/1.536, allocations: 1.922 kB / 1.129 GB, free: 14.78 MB / 0.8419 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.135e-05/1.536, allocations: 4.781 kB / 1.129 GB, free: 14.78 MB / 0.8419 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.008504/1.544, allocations: 4.589 MB / 1.133 GB, free: 14.2 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.012e-05/1.544, allocations: 8.188 kB / 1.133 GB, free: 14.2 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001625/1.546, allocations: 313.5 kB / 1.134 GB, free: 14.19 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.305e-05/1.546, allocations: 9.906 kB / 1.134 GB, free: 14.19 MB / 0.8419 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.077e-05/1.546, allocations: 32.12 kB / 1.134 GB, free: 14.19 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001403/1.547, allocations: 2.372 MB / 1.136 GB, free: 11.84 MB / 0.8419 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.484e-06/1.547, allocations: 9.094 kB / 1.136 GB, free: 11.84 MB / 0.8419 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004155/1.552, allocations: 2.05 MB / 1.138 GB, free: 11.32 MB / 0.8419 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001356/1.553, allocations: 0.5473 MB / 1.139 GB, free: 11.09 MB / 0.8419 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004015/1.553, allocations: 29.5 kB / 1.139 GB, free: 11.08 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002164/1.556, allocations: 173.5 kB / 1.139 GB, free: 11.07 MB / 0.8419 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000152/1.556, allocations: 84.39 kB / 1.139 GB, free: 11.06 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001496/1.556, allocations: 67.27 kB / 1.139 GB, free: 11.06 MB / 0.8419 GB Notification: Performance of sorting global known variables: time 0.00266/1.559, allocations: 1.728 MB / 1.141 GB, free: 10.91 MB / 0.8419 GB Notification: Performance of sort global known variables: time 9e-08/1.559, allocations: 0 / 1.141 GB, free: 10.91 MB / 0.8419 GB Notification: Performance of remove unused functions: time 0.003459/1.562, allocations: 1.316 MB / 1.142 GB, free: 10.77 MB / 0.8419 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 0.0008434/1.563, allocations: 387.6 kB / 1.142 GB, free: 10.63 MB / 0.8419 GB Notification: Performance of simCode: created initialization part: time 0.00833/1.571, allocations: 3.604 MB / 1.146 GB, free: 10.3 MB / 0.8419 GB Notification: Performance of simCode: created event and clocks part: time 1.378e-05/1.571, allocations: 2.656 kB / 1.146 GB, free: 10.3 MB / 0.8419 GB Notification: Performance of simCode: created simulation system equations: time 0.001843/1.573, allocations: 0.8071 MB / 1.147 GB, free: 10.29 MB / 0.8419 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005976/1.579, allocations: 1.192 MB / 1.148 GB, free: 10.07 MB / 0.8419 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007093/1.586, allocations: 4.459 MB / 1.152 GB, free: 8.277 MB / 0.8419 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001243/1.587, allocations: 1.684 MB / 1.154 GB, free: 7.508 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001161/1.588, allocations: 231.3 kB / 1.154 GB, free: 7.504 MB / 0.8419 GB Notification: Performance of SimCode: time 9.82e-07/1.588, allocations: 0 / 1.154 GB, free: 7.504 MB / 0.8419 GB Notification: Performance of Templates: time 0.1017/1.69, allocations: 87.63 MB / 1.239 GB, free: 11.72 MB / 0.92 GB make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.makefile (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.ReverseFlowMassExchanger.pipe 2>&1)