Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.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 3.5.0-master/package.mo", uses=false) Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.5.0-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(BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Airflow_Multizone_Examples_ChimneyShaftNoVolume",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Airflow_Multizone_Examples_ChimneyShaftNoVolume",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 0.0009448/0.0009449, allocations: 99.86 kB / 15.05 MB, free: 1.105 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001/0.001001, allocations: 177.3 kB / 15.95 MB, free: 216 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.297/1.297, allocations: 223.2 MB / 239.9 MB, free: 5.434 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.5.0-master/package.mo): time 0.9486/0.9486, allocations: 143.3 MB / 434.3 MB, free: 13.73 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003033/0.0003034, allocations: 11.98 kB / 0.5159 GB, free: 11.16 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1473/0.1476, allocations: 83.4 MB / 0.5973 GB, free: 7.703 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume): time 0.3829/0.5305, allocations: 141.6 MB / 0.7357 GB, free: 12.38 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.01146/0.542, allocations: 7.695 MB / 0.7432 GB, free: 5.625 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001432/0.5434, allocations: 31.81 kB / 0.7432 GB, free: 5.594 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.001756/0.5452, allocations: 0.5967 MB / 0.7438 GB, free: 5.168 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.004256/0.5495, allocations: 1.515 MB / 0.7453 GB, free: 3.934 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.00346/0.553, allocations: 1.236 MB / 0.7465 GB, free: 2.957 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.002853/0.5558, allocations: 1.627 MB / 0.7481 GB, free: 1.492 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001048/0.5569, allocations: 0.7247 MB / 0.7488 GB, free: 0.7617 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001212/0.5581, allocations: 0.7668 MB / 0.7495 GB, free: 15.99 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008987/0.559, allocations: 0.6769 MB / 0.7502 GB, free: 15.31 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0001076/0.5591, allocations: 44 kB / 0.7502 GB, free: 15.27 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002078/0.5612, allocations: 0.8661 MB / 0.7511 GB, free: 14.4 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0002139/0.5614, allocations: 203.1 kB / 0.7513 GB, free: 14.2 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.0002303/0.5617, allocations: 241.1 kB / 0.7515 GB, free: 13.96 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.001365/0.5631, allocations: 1.256 MB / 0.7527 GB, free: 12.7 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 2.986e-06/0.5631, allocations: 4 kB / 0.7527 GB, free: 12.7 MB / 0.5762 GB Notification: Performance of FrontEnd: time 1.834e-06/0.5631, allocations: 0 / 0.7527 GB, free: 12.7 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 1.304e-05/0.5631, allocations: 0 / 0.7527 GB, free: 12.7 MB / 0.5762 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 195 * Number of variables: 195 Notification: Performance of Generate backend data structure: time 0.002338/0.5654, allocations: 1.369 MB / 0.7541 GB, free: 11.28 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 3.977e-05/0.5655, allocations: 15.95 kB / 0.7541 GB, free: 11.27 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001487/0.5657, allocations: 130.7 kB / 0.7542 GB, free: 11.13 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002552/0.5659, allocations: 143 kB / 0.7543 GB, free: 10.99 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001293/0.5672, allocations: 0.7893 MB / 0.7551 GB, free: 10.16 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.76e-05/0.5673, allocations: 58 kB / 0.7552 GB, free: 10.1 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001063/0.5674, allocations: 79.98 kB / 0.7552 GB, free: 10.02 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0013/0.5687, allocations: 0.8615 MB / 0.7561 GB, free: 9.113 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.198e-05/0.5687, allocations: 0 / 0.7561 GB, free: 9.113 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.782e-05/0.5688, allocations: 36 kB / 0.7561 GB, free: 9.078 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.733e-05/0.5688, allocations: 20.62 kB / 0.7561 GB, free: 9.059 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001105/0.5699, allocations: 0.6401 MB / 0.7568 GB, free: 8.418 MB / 0.5762 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 0.00431/0.5743, allocations: 3.989 MB / 0.7607 GB, free: 4.168 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001091/0.5754, allocations: 0.5737 MB / 0.7612 GB, free: 3.586 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0008948/0.5763, allocations: 1.243 MB / 0.7624 GB, free: 2.066 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005705/0.5769, allocations: 323.1 kB / 0.7627 GB, free: 1.742 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=63): time 2.464e-06/0.5769, allocations: 0 / 0.7627 GB, free: 1.742 MB / 0.5762 GB Notification: Performance of matching and sorting (n=63): time 0.002321/0.5792, allocations: 1.147 MB / 0.7639 GB, free: 0.5469 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.149e-05/0.5793, allocations: 85.67 kB / 0.7639 GB, free: 456 kB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001001/0.5803, allocations: 0.8845 MB / 0.7648 GB, free: 15.53 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 5.155e-05/0.5803, allocations: 41.7 kB / 0.7648 GB, free: 15.48 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003229/0.5807, allocations: 456.2 kB / 0.7653 GB, free: 15.04 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001703/0.5808, allocations: 220.7 kB / 0.7655 GB, free: 14.82 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.915e-05/0.5809, allocations: 11.94 kB / 0.7655 GB, free: 14.81 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0001106/0.581, allocations: 334 kB / 0.7658 GB, free: 14.48 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003944/0.5814, allocations: 205.2 kB / 0.766 GB, free: 14.27 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004531/0.5819, allocations: 312.4 kB / 0.7663 GB, free: 13.94 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000434/0.5823, allocations: 250.1 kB / 0.7666 GB, free: 13.7 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.065e-06/0.5823, allocations: 0 / 0.7666 GB, free: 13.7 MB / 0.5919 GB Notification: Performance of matching and sorting (n=75) (initialization): time 0.001215/0.5835, allocations: 0.7136 MB / 0.7672 GB, free: 12.97 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003715/0.5839, allocations: 0.8752 MB / 0.7681 GB, free: 12.03 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.136e-05/0.5839, allocations: 5.062 kB / 0.7681 GB, free: 12.02 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005577/0.5845, allocations: 100.8 kB / 0.7682 GB, free: 11.92 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004628/0.585, allocations: 119.8 kB / 0.7683 GB, free: 11.8 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005332/0.5855, allocations: 0.6731 MB / 0.769 GB, free: 11.11 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006086/0.5861, allocations: 95.42 kB / 0.7691 GB, free: 11.01 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.944e-05/0.5862, allocations: 28 kB / 0.7691 GB, free: 10.98 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 8.526e-06/0.5862, allocations: 4 kB / 0.7691 GB, free: 10.98 MB / 0.5919 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0009965/0.5872, allocations: 0.5723 MB / 0.7697 GB, free: 10.4 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.352e-06/0.5873, allocations: 5.25 kB / 0.7697 GB, free: 10.4 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004344/0.5877, allocations: 104.8 kB / 0.7698 GB, free: 10.29 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004134/0.5881, allocations: 112.5 kB / 0.7699 GB, free: 10.18 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004994/0.5886, allocations: 0.6655 MB / 0.7705 GB, free: 9.492 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005623/0.5892, allocations: 87.47 kB / 0.7706 GB, free: 9.406 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.011e-05/0.5893, allocations: 23.98 kB / 0.7706 GB, free: 9.383 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 10 * Number of states: 0 () * Number of discrete variables: 5 ($whenCondition1,$PRE.mRoo_flow.nextTimeEvent,mRoo_flow.nextTimeEvent,$PRE.mRoo_flow.nextTimeEventScaled,mRoo_flow.nextTimeEventScaled) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (67): * Single equations (assignments): 66 * 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: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {2 7} Notification: Performance of prepare postOptimizeDAE: time 0.0004727/0.5897, allocations: 329.8 kB / 0.7709 GB, free: 9.051 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001354/0.5899, allocations: 98.78 kB / 0.771 GB, free: 8.953 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001763/0.5917, allocations: 0.9632 MB / 0.772 GB, free: 7.988 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.424e-05/0.5917, allocations: 8 kB / 0.772 GB, free: 7.98 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.859e-06/0.5917, allocations: 3.938 kB / 0.772 GB, free: 7.977 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001193/0.5929, allocations: 0.8542 MB / 0.7728 GB, free: 7.07 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002734/0.5956, allocations: 1.876 MB / 0.7747 GB, free: 5.121 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.731e-06/0.5957, allocations: 0 / 0.7747 GB, free: 5.121 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000436/0.5961, allocations: 104.6 kB / 0.7748 GB, free: 5.02 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006063/0.5967, allocations: 161.6 kB / 0.7749 GB, free: 4.855 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.731e-05/0.5968, allocations: 16 kB / 0.7749 GB, free: 4.84 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008307/0.5976, allocations: 1.249 MB / 0.7761 GB, free: 3.539 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.665e-06/0.5976, allocations: 0.5 kB / 0.7761 GB, free: 3.539 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002008/0.5996, allocations: 1.311 MB / 0.7774 GB, free: 2.188 MB / 0.5919 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004101/0.6001, allocations: 279.6 kB / 0.7777 GB, free: 1.895 MB / 0.5919 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001225/0.6002, allocations: 16 kB / 0.7777 GB, free: 1.879 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005319/0.6007, allocations: 62.98 kB / 0.7778 GB, free: 1.82 MB / 0.5919 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.671e-05/0.6008, allocations: 56.53 kB / 0.7778 GB, free: 1.766 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.241e-05/0.6009, allocations: 23.98 kB / 0.7778 GB, free: 1.742 MB / 0.5919 GB Notification: Performance of sorting global known variables: time 0.0007232/0.6016, allocations: 0.6091 MB / 0.7784 GB, free: 1.121 MB / 0.5919 GB Notification: Performance of sort global known variables: time 2.4e-07/0.6016, allocations: 11.94 kB / 0.7784 GB, free: 1.109 MB / 0.5919 GB Notification: Performance of remove unused functions: time 0.001298/0.6029, allocations: 0.5535 MB / 0.779 GB, free: 0.5547 MB / 0.5919 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 5 (roo.dynBal.U,roo.dynBal.m,oriChiTop.mExc,oriBot.mExc,oriChiBot.mExc) * Number of discrete variables: 3 ($whenCondition1,mRoo_flow.nextTimeEvent,mRoo_flow.nextTimeEventScaled) * Number of discrete states: 2 (mRoo_flow.nextTimeEvent,mRoo_flow.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (62): * Single equations (assignments): 54 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 2 * 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 {2 9,1 2} Notification: Performance of Backend phase and start with SimCode phase: time 0.003601/0.6065, allocations: 2.608 MB / 0.7815 GB, free: 14.09 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.001745/0.6083, allocations: 0.9219 MB / 0.7824 GB, free: 13.17 MB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 3.026e-06/0.6083, allocations: 0.8125 kB / 0.7824 GB, free: 13.17 MB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.0007109/0.609, allocations: 383.7 kB / 0.7828 GB, free: 12.79 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001916/0.611, allocations: 427.9 kB / 0.7832 GB, free: 12.38 MB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008863/0.6199, allocations: 7.365 MB / 0.7904 GB, free: 4.762 MB / 0.6075 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00059/0.6205, allocations: 1.099 MB / 0.7915 GB, free: 3.637 MB / 0.6075 GB Notification: Performance of simCode: alias equations: time 0.0008491/0.6213, allocations: 224.9 kB / 0.7917 GB, free: 3.418 MB / 0.6075 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004795/0.6218, allocations: 407.3 kB / 0.7921 GB, free: 3.02 MB / 0.6075 GB Notification: Performance of SimCode: time 6.51e-07/0.6218, allocations: 0 / 0.7921 GB, free: 3.02 MB / 0.6075 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04962/0.6714, allocations: 29.39 MB / 0.8208 GB, free: 6.129 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001976/0.6717, allocations: 266.5 kB / 0.821 GB, free: 5.777 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.383/3.055, allocations: 0 / 0.821 GB, free: 5.777 MB / 0.6387 GB (rm -f BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_BuildSysPro_BuildSysPro_IBPSA_Airflow_Multizone_Examples_ChimneyShaftNoVolume_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 BuildSysPro_BuildSysPro_IBPSA_Airflow_Multizone_Examples_ChimneyShaftNoVolume.fmu > BuildSysPro_BuildSysPro.IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe 2>&1) Environment - environmentSimulation: