Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_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/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: translateModel(IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume") translateModel(IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001166/0.001166, allocations: 113.3 kB / 17.08 MB, free: 6.016 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00124/0.00124, allocations: 199 kB / 18.02 MB, free: 5.094 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.297/1.297, allocations: 222.9 MB / 241.7 MB, free: 15.16 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6864/0.6864, allocations: 115.3 MB / 407.2 MB, free: 6.172 MB / 318.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001227/0.001227, allocations: 70.16 kB / 0.5583 GB, free: 32.3 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1542/0.1554, allocations: 76.17 MB / 0.6327 GB, free: 4.426 MB / 478.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume): time 0.5864/0.7418, allocations: 167.5 MB / 0.7963 GB, free: 13.61 MB / 0.5919 GB Notification: Performance of NFInst.instExpressions: time 0.01376/0.7557, allocations: 8.898 MB / 0.805 GB, free: 12.82 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002814/0.7585, allocations: 46.75 kB / 0.8051 GB, free: 12.8 MB / 0.5919 GB Notification: Performance of NFTyping.typeComponents: time 0.002017/0.7606, allocations: 0.6437 MB / 0.8057 GB, free: 12.59 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.005202/0.7658, allocations: 1.496 MB / 0.8072 GB, free: 11.9 MB / 0.5919 GB Notification: Performance of NFTyping.typeClassSections: time 0.003592/0.7694, allocations: 1.199 MB / 0.8083 GB, free: 11.13 MB / 0.5919 GB Notification: Performance of NFFlatten.flatten: time 0.005216/0.7746, allocations: 2.698 MB / 0.811 GB, free: 9.715 MB / 0.5919 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002244/0.7769, allocations: 0.9676 MB / 0.8119 GB, free: 9.125 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003341/0.7803, allocations: 1.031 MB / 0.8129 GB, free: 8.707 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002027/0.7823, allocations: 0.9935 MB / 0.8139 GB, free: 8.203 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0003743/0.7827, allocations: 95.62 kB / 0.814 GB, free: 8.203 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003197/0.7859, allocations: 1.05 MB / 0.815 GB, free: 7.832 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0005309/0.7864, allocations: 280.9 kB / 0.8153 GB, free: 7.621 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.001332/0.7878, allocations: 0.6086 MB / 0.8159 GB, free: 7.219 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.004299/0.7921, allocations: 1.742 MB / 0.8176 GB, free: 6.16 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 7.434e-06/0.7921, allocations: 0 / 0.8176 GB, free: 6.16 MB / 0.5919 GB Notification: Performance of FrontEnd: time 3.827e-06/0.7921, allocations: 3.984 kB / 0.8176 GB, free: 6.156 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 7.275e-05/0.7922, allocations: 2.094 kB / 0.8176 GB, free: 6.156 MB / 0.5919 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 0.004101/0.7963, allocations: 1.557 MB / 0.8191 GB, free: 4.973 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 4.392e-05/0.7964, allocations: 11.48 kB / 0.8191 GB, free: 4.969 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000536/0.7969, allocations: 135.2 kB / 0.8192 GB, free: 4.902 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001859/0.7988, allocations: 0.8824 MB / 0.8201 GB, free: 4.227 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.89e-05/0.7989, allocations: 66 kB / 0.8202 GB, free: 4.191 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001377/0.799, allocations: 77.22 kB / 0.8202 GB, free: 4.168 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001535/0.8005, allocations: 0.8776 MB / 0.8211 GB, free: 3.59 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.361e-05/0.8006, allocations: 2.562 kB / 0.8211 GB, free: 3.59 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.955e-05/0.8007, allocations: 35.62 kB / 0.8211 GB, free: 3.562 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.716e-05/0.8007, allocations: 19.72 kB / 0.8211 GB, free: 3.562 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001055/0.8017, allocations: 0.6286 MB / 0.8218 GB, free: 3.258 MB / 0.5919 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 0.004527/0.8063, allocations: 3.96 MB / 0.8256 GB, free: 15.84 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001085/0.8074, allocations: 0.5772 MB / 0.8262 GB, free: 15.55 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004484/0.8078, allocations: 294.4 kB / 0.8265 GB, free: 15.41 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0009849/0.8088, allocations: 1.24 MB / 0.8277 GB, free: 13.96 MB / 0.6075 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.000572/0.8094, allocations: 328.5 kB / 0.828 GB, free: 13.76 MB / 0.6075 GB Notification: Performance of pre-optimization done (n=63): time 2.425e-06/0.8094, allocations: 0 / 0.828 GB, free: 13.76 MB / 0.6075 GB Notification: Performance of matching and sorting (n=63): time 0.002352/0.8118, allocations: 1.137 MB / 0.8291 GB, free: 13.07 MB / 0.6075 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.759e-05/0.8119, allocations: 88.94 kB / 0.8292 GB, free: 12.98 MB / 0.6075 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009909/0.8129, allocations: 0.8745 MB / 0.83 GB, free: 12.48 MB / 0.6075 GB Notification: Performance of collectPreVariables (initialization): time 5.112e-05/0.8129, allocations: 36.33 kB / 0.8301 GB, free: 12.45 MB / 0.6075 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003521/0.8133, allocations: 466.2 kB / 0.8305 GB, free: 12.04 MB / 0.6075 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001765/0.8135, allocations: 213.3 kB / 0.8307 GB, free: 11.86 MB / 0.6075 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.00017/0.8136, allocations: 118.4 kB / 0.8308 GB, free: 11.79 MB / 0.6075 GB Notification: Performance of setup shared object (initialization): time 0.0001115/0.8137, allocations: 326.8 kB / 0.8312 GB, free: 11.47 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003884/0.8141, allocations: 217.2 kB / 0.8314 GB, free: 11.36 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004536/0.8146, allocations: 322.3 kB / 0.8317 GB, free: 11.13 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008111/0.8154, allocations: 0.5275 MB / 0.8322 GB, free: 10.81 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.307e-06/0.8154, allocations: 0 / 0.8322 GB, free: 10.81 MB / 0.6075 GB Notification: Performance of matching and sorting (n=75) (initialization): time 0.001201/0.8166, allocations: 0.7099 MB / 0.8329 GB, free: 10.45 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 1.982e-05/0.8167, allocations: 11.69 kB / 0.8329 GB, free: 10.45 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.866e-06/0.8167, allocations: 6.312 kB / 0.8329 GB, free: 10.44 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005734/0.8173, allocations: 107.4 kB / 0.833 GB, free: 10.39 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004165/0.8177, allocations: 114.4 kB / 0.8331 GB, free: 10.37 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000565/0.8183, allocations: 0.6666 MB / 0.8338 GB, free: 9.762 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000533/0.8188, allocations: 61.48 kB / 0.8338 GB, free: 9.719 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.373e-05/0.8189, allocations: 23.91 kB / 0.8338 GB, free: 9.715 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005587/0.8194, allocations: 395.5 kB / 0.8342 GB, free: 9.473 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004052/0.8199, allocations: 300.3 kB / 0.8345 GB, free: 9.266 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007242/0.8206, allocations: 0.5132 MB / 0.835 GB, free: 8.941 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.773e-06/0.8206, allocations: 0 / 0.835 GB, free: 8.941 MB / 0.6075 GB Notification: Performance of matching and sorting (n=75) (initialization_lambda0): time 0.001097/0.8217, allocations: 0.6832 MB / 0.8357 GB, free: 8.594 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 1.074e-05/0.8217, allocations: 8.938 kB / 0.8357 GB, free: 8.59 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.519e-06/0.8217, allocations: 2.812 kB / 0.8357 GB, free: 8.59 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004375/0.8222, allocations: 105.2 kB / 0.8358 GB, free: 8.543 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003877/0.8226, allocations: 115.9 kB / 0.8359 GB, free: 8.516 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005003/0.8231, allocations: 0.6634 MB / 0.8365 GB, free: 7.91 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004982/0.8236, allocations: 48.53 kB / 0.8366 GB, free: 7.875 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.921e-05/0.8237, allocations: 25.73 kB / 0.8366 GB, free: 7.867 MB / 0.6075 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 ($PRE.mRoo_flow.nextTimeEvent,$whenCondition1,mRoo_flow.nextTimeEventScaled,$PRE.mRoo_flow.nextTimeEventScaled,mRoo_flow.nextTimeEvent) * 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 (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,7)} Notification: Performance of prepare postOptimizeDAE: time 0.0002193/0.8239, allocations: 220 kB / 0.8368 GB, free: 7.656 MB / 0.6075 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001482/0.824, allocations: 102.9 kB / 0.8369 GB, free: 7.602 MB / 0.6075 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00167/0.8257, allocations: 0.9381 MB / 0.8378 GB, free: 7.078 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.589e-05/0.8257, allocations: 11.72 kB / 0.8378 GB, free: 7.074 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.035e-06/0.8258, allocations: 0 / 0.8378 GB, free: 7.074 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001189/0.827, allocations: 0.8536 MB / 0.8387 GB, free: 6.504 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00284/0.8298, allocations: 1.856 MB / 0.8405 GB, free: 5.188 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.29e-06/0.8298, allocations: 0 / 0.8405 GB, free: 5.188 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004307/0.8303, allocations: 95.89 kB / 0.8406 GB, free: 5.094 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005293/0.8308, allocations: 153.6 kB / 0.8407 GB, free: 4.938 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.475e-05/0.8309, allocations: 21.05 kB / 0.8407 GB, free: 4.918 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008756/0.8317, allocations: 1.249 MB / 0.842 GB, free: 3.617 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.164e-06/0.8318, allocations: 0 / 0.842 GB, free: 3.617 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002019/0.8338, allocations: 1.28 MB / 0.8432 GB, free: 2.309 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003988/0.8342, allocations: 255.6 kB / 0.8435 GB, free: 2.039 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001537/0.8344, allocations: 16 kB / 0.8435 GB, free: 2.023 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000481/0.8348, allocations: 27.92 kB / 0.8435 GB, free: 1.996 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000108/0.835, allocations: 52.52 kB / 0.8436 GB, free: 1.945 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.79e-05/0.835, allocations: 24.88 kB / 0.8436 GB, free: 1.922 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.0007863/0.8358, allocations: 0.6169 MB / 0.8442 GB, free: 1.293 MB / 0.6075 GB Notification: Performance of sort global known variables: time 2.21e-07/0.8358, allocations: 0 / 0.8442 GB, free: 1.293 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.001512/0.8373, allocations: 0.5584 MB / 0.8447 GB, free: 0.7344 MB / 0.6075 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 (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(2,9), (1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001682/0.839, allocations: 0.7149 MB / 0.8454 GB, free: 212 kB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.001933/0.841, allocations: 0.9307 MB / 0.8463 GB, free: 15.28 MB / 0.6231 GB Notification: Performance of simCode: created event and clocks part: time 4.799e-06/0.841, allocations: 0 / 0.8463 GB, free: 15.28 MB / 0.6231 GB Notification: Performance of simCode: created simulation system equations: time 0.0007431/0.8417, allocations: 388.4 kB / 0.8467 GB, free: 14.9 MB / 0.6231 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001886/0.8436, allocations: 458.7 kB / 0.8471 GB, free: 14.46 MB / 0.6231 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00413/0.8478, allocations: 2.082 MB / 0.8492 GB, free: 12.35 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007979/0.8486, allocations: 1.068 MB / 0.8502 GB, free: 11.25 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002728/0.8489, allocations: 87.41 kB / 0.8503 GB, free: 11.17 MB / 0.6231 GB Notification: Performance of SimCode: time 2.6e-07/0.8489, allocations: 4 kB / 0.8503 GB, free: 11.16 MB / 0.6231 GB Notification: Performance of Templates: time 0.03368/0.8826, allocations: 23.57 MB / 0.8733 GB, free: 3.695 MB / 0.6387 GB make -j1 -f IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.makefile (rm -f IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe ; mkfifo IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe >> ../files/IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.sim & ./IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe 2>&1)