Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.1-maint.9.1.x/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/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 Buildings with version 9.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.1-maint.9.1.x/package.mo) Running command: translateModel(Buildings.Airflow.Multizone.Examples.NaturalVentilation,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|volA.T|volOut.T|oriOutBot.v|oriOutTop.v",fileNamePrefix="Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation") translateModel(Buildings.Airflow.Multizone.Examples.NaturalVentilation,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|volA.T|volOut.T|oriOutBot.v|oriOutTop.v",fileNamePrefix="Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.1-maint.9.1.x/package.mo): time 2.296/2.296, allocations: 387.4 MB / 394.9 MB, free: 13.38 MB / 314.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001104/0.001104, allocations: 176.8 kB / 487.4 MB, free: 5.051 MB / 394.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.56/1.56, allocations: 221.5 MB / 0.7824 GB, free: 1 MB / 0.5417 GB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001115/0.001115, allocations: 99.84 kB / 0.9219 GB, free: 2.234 MB / 0.6823 GB Notification: Performance of FrontEnd - loaded program: time 1.56e-05/1.564e-05, allocations: 4 kB / 1.067 GB, free: 185.7 MB / 0.7605 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3015/0.3015, allocations: 142.4 MB / 1.206 GB, free: 43.98 MB / 0.7605 GB Notification: Performance of FrontEnd - scodeFlatten: time 5.598/5.899, allocations: 1.919 GB / 3.125 GB, free: 432.4 MB / 1.151 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002378/5.899, allocations: 87.17 kB / 3.125 GB, free: 432.4 MB / 1.151 GB Notification: Performance of FrontEnd - DAE generated: time 2.182/8.081, allocations: 0.6599 GB / 3.785 GB, free: 197.1 MB / 1.151 GB Notification: Performance of FrontEnd: time 1.633e-06/8.081, allocations: 0 / 3.785 GB, free: 197.1 MB / 1.151 GB Notification: Performance of Transformations before backend: time 0.0001462/8.081, allocations: 31.64 kB / 3.785 GB, free: 197.1 MB / 1.151 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 214 * Number of variables: 214 Notification: Performance of Generate backend data structure: time 0.004739/8.086, allocations: 1.386 MB / 3.787 GB, free: 195.7 MB / 1.151 GB Notification: Performance of prepare preOptimizeDAE: time 6.067e-05/8.086, allocations: 12.03 kB / 3.787 GB, free: 195.7 MB / 1.151 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003041/8.089, allocations: 370.2 kB / 3.787 GB, free: 195.3 MB / 1.151 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002138/8.091, allocations: 0.8499 MB / 3.788 GB, free: 194.4 MB / 1.151 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.551e-05/8.091, allocations: 27.94 kB / 3.788 GB, free: 194.4 MB / 1.151 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002317/8.092, allocations: 52 kB / 3.788 GB, free: 194.4 MB / 1.151 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.001564/8.093, allocations: 0.738 MB / 3.789 GB, free: 193.6 MB / 1.151 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00163/8.095, allocations: 0.8872 MB / 3.789 GB, free: 192.7 MB / 1.151 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.619e-05/8.095, allocations: 11.48 kB / 3.789 GB, free: 192.7 MB / 1.151 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.523e-05/8.095, allocations: 4 kB / 3.789 GB, free: 192.7 MB / 1.151 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.041e-05/8.095, allocations: 34 kB / 3.789 GB, free: 192.7 MB / 1.151 GB Warning: The model contains alias variables with conflicting start and/or 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 0.005341/8.1, allocations: 4.348 MB / 3.794 GB, free: 188 MB / 1.151 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0009/8.101, allocations: 0.626 MB / 3.794 GB, free: 187.4 MB / 1.151 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005779/8.102, allocations: 422.4 kB / 3.795 GB, free: 186.9 MB / 1.151 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005519/8.103, allocations: 0.6764 MB / 3.795 GB, free: 186.1 MB / 1.151 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.22e-05/8.103, allocations: 47.08 kB / 3.795 GB, free: 186.1 MB / 1.151 GB Notification: Performance of pre-optimization done (n=70): time 2.775e-06/8.103, allocations: 0 / 3.795 GB, free: 186.1 MB / 1.151 GB Notification: Performance of matching and sorting (n=70): time 0.001507/8.104, allocations: 0.7171 MB / 3.796 GB, free: 185.3 MB / 1.151 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.318e-05/8.104, allocations: 59.97 kB / 3.796 GB, free: 185.3 MB / 1.151 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006454/8.105, allocations: 487.7 kB / 3.797 GB, free: 184.8 MB / 1.151 GB Notification: Performance of collectPreVariables (initialization): time 7.703e-05/8.105, allocations: 29.92 kB / 3.797 GB, free: 184.8 MB / 1.151 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002185/8.105, allocations: 428 kB / 3.797 GB, free: 184.3 MB / 1.151 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002076/8.105, allocations: 252.2 kB / 3.797 GB, free: 184.1 MB / 1.151 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.642e-05/8.105, allocations: 0 / 3.797 GB, free: 184.1 MB / 1.151 GB Notification: Performance of setup shared object (initialization): time 0.0001181/8.105, allocations: 378.8 kB / 3.798 GB, free: 183.7 MB / 1.151 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003301/8.106, allocations: 277.4 kB / 3.798 GB, free: 183.4 MB / 1.151 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003526/8.106, allocations: 354.7 kB / 3.798 GB, free: 183 MB / 1.151 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005496/8.107, allocations: 332.4 kB / 3.799 GB, free: 182.7 MB / 1.151 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.356e-06/8.107, allocations: 4.031 kB / 3.799 GB, free: 182.7 MB / 1.151 GB Notification: Performance of matching and sorting (n=82) (initialization): time 0.001159/8.108, allocations: 0.7648 MB / 3.799 GB, free: 181.9 MB / 1.151 GB Notification: Performance of prepare postOptimizeDAE: time 2.523e-05/8.108, allocations: 9.094 kB / 3.799 GB, free: 181.9 MB / 1.151 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.708e-06/8.108, allocations: 3.984 kB / 3.799 GB, free: 181.9 MB / 1.151 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.416e-05/8.108, allocations: 7.953 kB / 3.799 GB, free: 181.9 MB / 1.151 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006457/8.109, allocations: 152 kB / 3.8 GB, free: 181.8 MB / 1.151 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.452e-05/8.109, allocations: 7.938 kB / 3.8 GB, free: 181.8 MB / 1.151 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001091/8.11, allocations: 103.4 kB / 3.8 GB, free: 181.7 MB / 1.151 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.309e-05/8.11, allocations: 20 kB / 3.8 GB, free: 181.7 MB / 1.151 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (82): * Single equations (assignments): 82 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001401/8.11, allocations: 112.9 kB / 3.8 GB, free: 181.5 MB / 1.151 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001743/8.11, allocations: 79.06 kB / 3.8 GB, free: 181.5 MB / 1.151 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001263/8.111, allocations: 0.7768 MB / 3.801 GB, free: 180.7 MB / 1.151 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.242e-06/8.111, allocations: 8 kB / 3.801 GB, free: 180.7 MB / 1.151 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.603e-06/8.111, allocations: 3.953 kB / 3.801 GB, free: 180.7 MB / 1.151 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0009127/8.112, allocations: 0.8156 MB / 3.801 GB, free: 179.8 MB / 1.151 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002639/8.115, allocations: 1.767 MB / 3.803 GB, free: 178 MB / 1.151 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.466e-06/8.115, allocations: 3.938 kB / 3.803 GB, free: 178 MB / 1.151 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000809/8.116, allocations: 175.7 kB / 3.803 GB, free: 177.8 MB / 1.151 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.977e-06/8.116, allocations: 4 kB / 3.803 GB, free: 177.8 MB / 1.151 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.741e-05/8.116, allocations: 15.94 kB / 3.803 GB, free: 177.8 MB / 1.151 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.31e-06/8.116, allocations: 4 kB / 3.803 GB, free: 177.8 MB / 1.151 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.577e-06/8.116, allocations: 0 / 3.803 GB, free: 177.8 MB / 1.151 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001466/8.117, allocations: 1.151 MB / 3.804 GB, free: 176.6 MB / 1.151 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004535/8.118, allocations: 255.8 kB / 3.805 GB, free: 176.4 MB / 1.151 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001312/8.118, allocations: 0 / 3.805 GB, free: 176.4 MB / 1.151 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00088/8.119, allocations: 67.8 kB / 3.805 GB, free: 176.3 MB / 1.151 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.322e-05/8.119, allocations: 40.5 kB / 3.805 GB, free: 176.3 MB / 1.151 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.167e-05/8.119, allocations: 27.98 kB / 3.805 GB, free: 176.2 MB / 1.151 GB Notification: Performance of sorting global known variables: time 0.0004226/8.12, allocations: 379.2 kB / 3.805 GB, free: 175.9 MB / 1.151 GB Notification: Performance of sort global known variables: time 1.8e-07/8.12, allocations: 0 / 3.805 GB, free: 175.9 MB / 1.151 GB Notification: Performance of remove unused functions: time 0.001288/8.121, allocations: 423.1 kB / 3.806 GB, free: 175.4 MB / 1.151 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 8 (volA.dynBal.medium.Xi[1],volA.dynBal.U,volA.dynBal.m,oriOutBot.mExc,oriOutTop.mExc,volOut.dynBal.medium.Xi[1],volOut.dynBal.U,volOut.dynBal.m) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (70): * Single equations (assignments): 70 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.002274/8.123, allocations: 1.769 MB / 3.807 GB, free: 173.8 MB / 1.151 GB Notification: Performance of simCode: created initialization part: time 0.0009383/8.124, allocations: 0.6548 MB / 3.808 GB, free: 173.1 MB / 1.151 GB Notification: Performance of simCode: created event and clocks part: time 3.707e-06/8.124, allocations: 4.062 kB / 3.808 GB, free: 173.1 MB / 1.151 GB Notification: Performance of simCode: created simulation system equations: time 0.0004233/8.124, allocations: 365.9 kB / 3.808 GB, free: 172.8 MB / 1.151 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002197/8.127, allocations: 467.9 kB / 3.809 GB, free: 172.3 MB / 1.151 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002998/8.13, allocations: 1.749 MB / 3.81 GB, free: 170.6 MB / 1.151 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005792/8.13, allocations: 1.116 MB / 3.812 GB, free: 169.4 MB / 1.151 GB Notification: Performance of simCode: alias equations: time 0.001028/8.131, allocations: 226.8 kB / 3.812 GB, free: 169.2 MB / 1.151 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002613/8.132, allocations: 83.34 kB / 3.812 GB, free: 169.1 MB / 1.151 GB Notification: Performance of SimCode: time 9.22e-07/8.132, allocations: 3.938 kB / 3.812 GB, free: 169.1 MB / 1.151 GB Notification: Performance of Templates: time 0.03554/8.167, allocations: 24.33 MB / 3.836 GB, free: 145 MB / 1.151 GB make -j1 -f Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation.makefile (rm -f Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation.pipe ; mkfifo Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation.pipe ; head -c 1048576 < Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation.pipe >> ../files/Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation.sim & ./Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation.pipe 2>&1) diffSimulationResults("Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_9.1.x/Buildings_Airflow_Multizone_Examples_NaturalVentilation.csv","../files/Buildings_9_Buildings.Airflow.Multizone.Examples.NaturalVentilation.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) "" Variables in the reference:time,volA.T,volOut.T,oriOutBot.v,oriOutTop.v Variables in the result:colOut.densitySelection,colOut.h,colRooTop.densitySelection,colRooTop.h,oriOutBot.A,oriOutBot.C,oriOutBot.CD,oriOutBot._dp_start,oriOutBot._m_flow_start,oriOutBot.a,oriOutBot.allowFlowReversal,oriOutBot.b,oriOutBot.c,oriOutBot.d,oriOutBot.dp_turbulent,oriOutBot.dynVis_default,oriOutBot.forceErrorControlOnFlow,oriOutBot.m,oriOutBot.m_flow_nominal,oriOutBot.m_flow_small,oriOutBot.rho_default,oriOutBot.sta_default.T,oriOutBot.sta_default.X[1],oriOutBot.sta_default.X[2],oriOutBot.sta_default.p,oriOutBot.useDefaultProperties,oriOutBot.v,oriOutTop.A,oriOutTop.C,oriOutTop.CD,oriOutTop._dp_start,oriOutTop._m_flow_start,oriOutTop.a,oriOutTop.allowFlowReversal,oriOutTop.b,oriOutTop.c,oriOutTop.d,oriOutTop.dp_turbulent,oriOutTop.dynVis_default,oriOutTop.forceErrorControlOnFlow,oriOutTop.m,oriOutTop.m_flow_nominal,oriOutTop.m_flow_small,oriOutTop.rho_default,oriOutTop.sta_default.T,oriOutTop.sta_default.X[1],oriOutTop.sta_default.X[2],oriOutTop.sta_default.p,oriOutTop.useDefaultProperties,oriOutTop.v,preHeaFlo.T_ref,preHeaFlo.alpha,q_flow.height,q_flow.offset,q_flow.startTime,time,volA.T,volA.T_start,volA.V,volA.X_start[1],volA.X_start[2],volA.allowFlowReversal,volA.dynBal.CSen,volA.dynBal.T_start,volA.dynBal.X_start[1],volA.dynBal.X_start[2],volA.dynBal.computeCSen,volA.dynBal.cp_default,volA.dynBal.energyDynamics,volA.dynBal.fluidVolume,volA.dynBal.hStart,volA.dynBal.initialize_p,volA.dynBal.mSenFac,volA.dynBal.massDynamics,volA.dynBal.medium.preferredMediumStates,volA.dynBal.medium.standardOrderComponents,volA.dynBal.nPorts,volA.dynBal.p_start,volA.dynBal.rho_default,volA.dynBal.rho_start,volA.dynBal.s[1],volA.dynBal.state_default.T,volA.dynBal.state_default.X[1],volA.dynBal.state_default.X[2],volA.dynBal.state_default.p,volA.dynBal.substanceDynamics,volA.dynBal.traceDynamics,volA.dynBal.use_C_flow,volA.dynBal.use_mWat_flow,volA.dynBal.wrongEnergyMassBalanceConfiguration,volA.energyDynamics,volA.mSenFac,volA.m_flow_nominal,volA.m_flow_small,volA.massDynamics,volA.nPorts,volA.p_start,volA.rho_default,volA.rho_start,volA.state_default.T,volA.state_default.X[1],volA.state_default.X[2],volA.state_default.p,volA.state_start.T,volA.state_start.X[1],volA.state_start.X[2],volA.state_start.p,volA.substanceDynamics,volA.traceDynamics,volA.useSteadyStateTwoPort,volA.use_C_flow,volA.wrongEnergyMassBalanceConfiguration,volOut.T,volOut.T_start,volOut.V,volOut.X_start[1],volOut.X_start[2],volOut.allowFlowReversal,volOut.dynBal.CSen,volOut.dynBal.T_start,volOut.dynBal.X_start[1],volOut.dynBal.X_start[2],volOut.dynBal.computeCSen,volOut.dynBal.cp_default,volOut.dynBal.energyDynamics,volOut.dynBal.fluidVolume,volOut.dynBal.hStart,volOut.dynBal.initialize_p,volOut.dynBal.mSenFac,volOut.dynBal.massDynamics,volOut.dynBal.medium.preferredMediumStates,volOut.dynBal.medium.standardOrderComponents,volOut.dynBal.nPorts,volOut.dynBal.p_start,volOut.dynBal.rho_default,volOut.dynBal.rho_start,volOut.dynBal.s[1],volOut.dynBal.state_default.T,volOut.dynBal.state_default.X[1],volOut.dynBal.state_default.X[2],volOut.dynBal.state_default.p,volOut.dynBal.substanceDynamics,volOut.dynBal.traceDynamics,volOut.dynBal.use_C_flow,volOut.dynBal.use_mWat_flow,volOut.dynBal.wrongEnergyMassBalanceConfiguration,volOut.energyDynamics,volOut.mSenFac,volOut.m_flow_nominal,volOut.m_flow_small,volOut.massDynamics,volOut.nPorts,volOut.p_start,volOut.rho_default,volOut.rho_start,volOut.state_default.T,volOut.state_default.X[1],volOut.state_default.X[2],volOut.state_default.p,volOut.state_start.T,volOut.state_start.X[1],volOut.state_start.X[2],volOut.state_start.p,volOut.substanceDynamics,volOut.traceDynamics,volOut.useSteadyStateTwoPort,volOut.use_C_flow,volOut.wrongEnergyMassBalanceConfiguration