Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow.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.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow") translateModel(Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009117/0.0009116, allocations: 98.27 kB / 15.36 MB, free: 0.7344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.007562/0.007562, allocations: 170 kB / 16.27 MB, free: 6.66 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.632/1.632, allocations: 205.4 MB / 222.5 MB, free: 5.555 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 1.545/1.545, allocations: 252 MB / 0.5105 GB, free: 4.656 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 0.0005452/0.0005451, allocations: 16 kB / 0.6249 GB, free: 0.7227 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5591/0.5596, allocations: 106.3 MB / 0.7287 GB, free: 11.25 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow): time 0.7424/1.302, allocations: 202 MB / 0.926 GB, free: 2.102 MB / 0.7169 GB Notification: Performance of NFInst.instExpressions: time 0.02458/1.327, allocations: 13.61 MB / 0.9393 GB, free: 1.836 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003076/1.33, allocations: 46.06 kB / 0.9393 GB, free: 1.836 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.002616/1.332, allocations: 0.6565 MB / 0.94 GB, free: 1.82 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.006621/1.339, allocations: 2.142 MB / 0.9421 GB, free: 1.715 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.005524/1.345, allocations: 1.819 MB / 0.9438 GB, free: 1.633 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.005011/1.35, allocations: 4.139 MB / 0.9479 GB, free: 1.617 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001736/1.351, allocations: 0.9623 MB / 0.9488 GB, free: 1.461 MB / 0.7169 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004301/1.356, allocations: 1.549 MB / 0.9503 GB, free: 1.426 MB / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002181/1.358, allocations: 1.041 MB / 0.9513 GB, free: 1.418 MB / 0.7169 GB Notification: Performance of NFPackage.collectConstants: time 0.0003617/1.358, allocations: 54.97 kB / 0.9514 GB, free: 1.418 MB / 0.7169 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005855/1.364, allocations: 3.171 MB / 0.9545 GB, free: 1.387 MB / 0.7169 GB Notification: Performance of NFScalarize.scalarize: time 0.0005732/1.365, allocations: 348.6 kB / 0.9548 GB, free: 1.383 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.001525/1.366, allocations: 0.7192 MB / 0.9555 GB, free: 17.35 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.005932/1.372, allocations: 3.092 MB / 0.9586 GB, free: 17.16 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 4.529e-06/1.372, allocations: 0 / 0.9586 GB, free: 17.16 MB / 0.7325 GB Notification: Performance of FrontEnd: time 2.615e-06/1.372, allocations: 3.062 kB / 0.9586 GB, free: 17.16 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 6.752e-05/1.372, allocations: 0 / 0.9586 GB, free: 17.16 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 229 * Number of variables: 229 Notification: Performance of Generate backend data structure: time 0.004665/1.377, allocations: 1.832 MB / 0.9603 GB, free: 16.08 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 4.319e-05/1.377, allocations: 12.31 kB / 0.9604 GB, free: 16.07 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003536/1.381, allocations: 0.5549 MB / 0.9609 GB, free: 15.97 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003413/1.384, allocations: 1.083 MB / 0.962 GB, free: 15.59 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000673/1.385, allocations: 217.5 kB / 0.9622 GB, free: 15.57 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000295/1.385, allocations: 99.22 kB / 0.9623 GB, free: 15.57 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003037/1.388, allocations: 1.276 MB / 0.9635 GB, free: 15.46 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.537e-05/1.388, allocations: 0 / 0.9635 GB, free: 15.46 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001375/1.388, allocations: 39.44 kB / 0.9635 GB, free: 15.46 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.821e-05/1.388, allocations: 43.91 kB / 0.9636 GB, free: 15.46 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0032/1.392, allocations: 1.33 MB / 0.9649 GB, free: 15.43 MB / 0.7325 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 0.008942/1.401, allocations: 4.917 MB / 0.9697 GB, free: 13.36 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002514/1.403, allocations: 1.033 MB / 0.9707 GB, free: 13.3 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001237/1.404, allocations: 0.5849 MB / 0.9713 GB, free: 13.29 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001317/1.406, allocations: 0.8677 MB / 0.9721 GB, free: 12.43 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001472/1.407, allocations: 0.695 MB / 0.9728 GB, free: 12.3 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=85): time 3.036e-06/1.407, allocations: 0 / 0.9728 GB, free: 12.3 MB / 0.7325 GB Notification: Performance of matching and sorting (n=85): time 0.005211/1.412, allocations: 1.799 MB / 0.9745 GB, free: 12.08 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001055/1.413, allocations: 121.6 kB / 0.9747 GB, free: 11.96 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00247/1.415, allocations: 1.032 MB / 0.9757 GB, free: 11.8 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.0001918/1.415, allocations: 43.36 kB / 0.9757 GB, free: 11.77 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006713/1.416, allocations: 0.5302 MB / 0.9762 GB, free: 11.57 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003477/1.416, allocations: 277.2 kB / 0.9765 GB, free: 11.4 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002115/1.416, allocations: 86.66 kB / 0.9766 GB, free: 11.39 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.000169/1.417, allocations: 348.7 kB / 0.9769 GB, free: 11.08 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001442/1.418, allocations: 0.513 MB / 0.9774 GB, free: 11.06 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001651/1.42, allocations: 0.7115 MB / 0.9781 GB, free: 10.88 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002948/1.423, allocations: 1.234 MB / 0.9793 GB, free: 10.61 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.314e-06/1.423, allocations: 0 / 0.9793 GB, free: 10.61 MB / 0.7325 GB Notification: Performance of matching and sorting (n=119) (initialization): time 0.003694/1.426, allocations: 1.512 MB / 0.9808 GB, free: 10.3 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001705/1.427, allocations: 235.2 kB / 0.981 GB, free: 10.05 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.195e-05/1.427, allocations: 3.438 kB / 0.981 GB, free: 10.05 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.512e-05/1.427, allocations: 8.406 kB / 0.981 GB, free: 10.05 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001218/1.428, allocations: 266 kB / 0.9813 GB, free: 9.992 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.82e-05/1.428, allocations: 13.31 kB / 0.9813 GB, free: 9.984 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00176/1.43, allocations: 207.3 kB / 0.9815 GB, free: 9.891 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001524/1.43, allocations: 48.66 kB / 0.9815 GB, free: 9.883 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 8.997e-06/1.43, allocations: 2.938 kB / 0.9815 GB, free: 9.883 MB / 0.7325 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.00303/1.433, allocations: 1.425 MB / 0.9829 GB, free: 9.602 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.257e-05/1.433, allocations: 5.719 kB / 0.9829 GB, free: 9.602 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.035e-05/1.433, allocations: 8.406 kB / 0.9829 GB, free: 9.602 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001158/1.434, allocations: 265 kB / 0.9832 GB, free: 9.547 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.762e-05/1.434, allocations: 6.438 kB / 0.9832 GB, free: 9.547 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001453/1.436, allocations: 189.1 kB / 0.9834 GB, free: 9.465 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001152/1.436, allocations: 48.66 kB / 0.9834 GB, free: 9.457 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 12 * Number of states: 0 () * Number of discrete variables: 16 (hex.flowRegime_nominal,hex.flowRegime,mAirGai.nextEventScaled,mAirGai.nextEvent,$PRE.mAirGai.nextEvent,mAirGai.last,mAirGai.b,mAirGai.a,mWatGai.nextEventScaled,mWatGai.nextEvent,$PRE.mWatGai.nextEvent,mWatGai.last,mWatGai.b,mWatGai.a,$whenCondition2,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (109): * Single equations (assignments): 107 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * 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 0.0007728/1.437, allocations: 462.4 kB / 0.9839 GB, free: 9.184 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003551/1.437, allocations: 130.3 kB / 0.984 GB, free: 9.117 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003313/1.44, allocations: 1.521 MB / 0.9855 GB, free: 8.715 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.324e-05/1.44, allocations: 8.656 kB / 0.9855 GB, free: 8.715 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.488e-06/1.44, allocations: 4 kB / 0.9855 GB, free: 8.711 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.327e-05/1.44, allocations: 9.734 kB / 0.9855 GB, free: 8.703 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005562/1.446, allocations: 2.967 MB / 0.9884 GB, free: 7.609 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.905e-06/1.446, allocations: 6.219 kB / 0.9884 GB, free: 7.609 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008875/1.447, allocations: 202.6 kB / 0.9886 GB, free: 7.57 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.492e-05/1.447, allocations: 6.75 kB / 0.9886 GB, free: 7.57 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.59e-05/1.447, allocations: 32.84 kB / 0.9886 GB, free: 7.562 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.666e-06/1.447, allocations: 10.19 kB / 0.9886 GB, free: 7.559 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.112e-06/1.447, allocations: 7.969 kB / 0.9886 GB, free: 7.559 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004722/1.452, allocations: 2.296 MB / 0.9909 GB, free: 6.863 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008454/1.453, allocations: 348.6 kB / 0.9912 GB, free: 6.641 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003089/1.453, allocations: 23.7 kB / 0.9912 GB, free: 6.637 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001377/1.454, allocations: 134.8 kB / 0.9914 GB, free: 6.594 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001565/1.454, allocations: 65.23 kB / 0.9914 GB, free: 6.57 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001254/1.455, allocations: 43.78 kB / 0.9915 GB, free: 6.562 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.001168/1.456, allocations: 0.7022 MB / 0.9922 GB, free: 6.348 MB / 0.7325 GB Notification: Performance of sort global known variables: time 2.1e-07/1.456, allocations: 0 / 0.9922 GB, free: 6.348 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.002757/1.458, allocations: 0.7961 MB / 0.9929 GB, free: 6.23 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 14 * Number of states: 1 (senRelHum.phi) * Number of discrete variables: 13 ($whenCondition1,$whenCondition2,mWatGai.a,mWatGai.b,mWatGai.last,mWatGai.nextEvent,mWatGai.nextEventScaled,mAirGai.a,mAirGai.b,mAirGai.last,mAirGai.nextEvent,mAirGai.nextEventScaled,hex.flowRegime) * Number of discrete states: 12 (mAirGai.nextEvent,mAirGai.last,mAirGai.nextEventScaled,mAirGai.b,mAirGai.a,$whenCondition2,mWatGai.nextEvent,mWatGai.last,mWatGai.nextEventScaled,mWatGai.b,mWatGai.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (83): * Single equations (assignments): 79 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001505/1.46, allocations: 0.5131 MB / 0.9934 GB, free: 6.023 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.0048/1.465, allocations: 2.274 MB / 0.9957 GB, free: 5.445 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 5.55e-06/1.465, allocations: 3.469 kB / 0.9957 GB, free: 5.445 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.001462/1.466, allocations: 0.7893 MB / 0.9964 GB, free: 5.129 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003428/1.47, allocations: 0.5203 MB / 0.9969 GB, free: 4.867 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005363/1.475, allocations: 2.917 MB / 0.9998 GB, free: 2.758 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008485/1.476, allocations: 1.157 MB / 1.001 GB, free: 1.566 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.001879/1.478, allocations: 362.1 kB / 1.001 GB, free: 1.223 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003746/1.478, allocations: 103.4 kB / 1.001 GB, free: 1.125 MB / 0.7325 GB Notification: Performance of SimCode: time 4.21e-07/1.478, allocations: 0 / 1.001 GB, free: 1.125 MB / 0.7325 GB Notification: Performance of Templates: time 0.045/1.523, allocations: 25.36 MB / 1.026 GB, free: 8.16 MB / 0.7637 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow.pipe 2>&1) Environment - environmentSimulation: