Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume.conf.json loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package Buildings with version 9.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo) Running command: translateModel(Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume") translateModel(Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo): time 1.783/1.783, allocations: 306.1 MB / 321.3 MB, free: 10.7 MB / 250.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001307/0.001308, allocations: 183.2 kB / 393.1 MB, free: 4.059 MB / 314.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.94/1.94, allocations: 225.7 MB / 0.6743 GB, free: 12.52 MB / 0.4948 GB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008686/0.0008686, allocations: 98.78 kB / 0.7935 GB, free: 39.96 MB / 0.5417 GB Notification: Performance of FrontEnd - loaded program: time 0.0003654/0.0003655, allocations: 8 kB / 0.9224 GB, free: 8.648 MB / 0.6355 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.9435/0.9439, allocations: 121.3 MB / 1.041 GB, free: 58.08 MB / 0.698 GB Notification: Performance of NFInst.instantiate(Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume): time 0.2288/1.173, allocations: 156.1 MB / 1.193 GB, free: 5.582 MB / 0.7605 GB Notification: Performance of NFInst.instExpressions: time 0.0176/1.19, allocations: 12.28 MB / 1.205 GB, free: 9.25 MB / 0.7761 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002629/1.193, allocations: 31.81 kB / 1.205 GB, free: 9.219 MB / 0.7761 GB Notification: Performance of NFTyping.typeComponents: time 0.002159/1.195, allocations: 0.5588 MB / 1.206 GB, free: 8.809 MB / 0.7761 GB Notification: Performance of NFTyping.typeBindings: time 0.005785/1.201, allocations: 1.39 MB / 1.207 GB, free: 7.719 MB / 0.7761 GB Notification: Performance of NFTyping.typeClassSections: time 0.004295/1.205, allocations: 1.053 MB / 1.208 GB, free: 6.863 MB / 0.7761 GB Notification: Performance of NFFlatten.flatten: time 0.006752/1.212, allocations: 3.637 MB / 1.212 GB, free: 3.879 MB / 0.7761 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002421/1.215, allocations: 0.8158 MB / 1.213 GB, free: 3.219 MB / 0.7761 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003246/1.218, allocations: 0.8875 MB / 1.213 GB, free: 2.445 MB / 0.7761 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002281/1.22, allocations: 0.9725 MB / 1.214 GB, free: 1.629 MB / 0.7761 GB Notification: Performance of NFPackage.collectConstants: time 0.0001581/1.22, allocations: 44 kB / 1.214 GB, free: 1.586 MB / 0.7761 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003911/1.224, allocations: 0.9777 MB / 1.215 GB, free: 0.7344 MB / 0.7761 GB Notification: Performance of NFScalarize.scalarize: time 0.0004538/1.225, allocations: 228.1 kB / 1.216 GB, free: 0.5586 MB / 0.7761 GB Notification: Performance of NFVerifyModel.verify: time 0.0009961/1.226, allocations: 0.5673 MB / 1.216 GB, free: 16 kB / 0.7761 GB Notification: Performance of NFConvertDAE.convert: time 0.004338/1.23, allocations: 1.654 MB / 1.218 GB, free: 14.9 MB / 0.7917 GB Notification: Performance of FrontEnd - DAE generated: time 1.088e-05/1.23, allocations: 0 / 1.218 GB, free: 14.9 MB / 0.7917 GB Notification: Performance of FrontEnd: time 2.435e-06/1.23, allocations: 0 / 1.218 GB, free: 14.9 MB / 0.7917 GB Notification: Performance of Transformations before backend: time 3.007e-05/1.23, allocations: 0 / 1.218 GB, free: 14.9 MB / 0.7917 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 0.003275/1.234, allocations: 1.361 MB / 1.219 GB, free: 13.63 MB / 0.7917 GB Notification: Performance of prepare preOptimizeDAE: time 4.747e-05/1.234, allocations: 12.03 kB / 1.219 GB, free: 13.62 MB / 0.7917 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002706/1.234, allocations: 136.6 kB / 1.219 GB, free: 13.48 MB / 0.7917 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001865/1.236, allocations: 0.8518 MB / 1.22 GB, free: 12.73 MB / 0.7917 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.371e-05/1.236, allocations: 66 kB / 1.22 GB, free: 12.66 MB / 0.7917 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001396/1.236, allocations: 80.66 kB / 1.22 GB, free: 12.58 MB / 0.7917 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002001/1.238, allocations: 0.8643 MB / 1.221 GB, free: 11.82 MB / 0.7917 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.189e-05/1.238, allocations: 4 kB / 1.221 GB, free: 11.81 MB / 0.7917 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.829e-05/1.238, allocations: 32.8 kB / 1.221 GB, free: 11.78 MB / 0.7917 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.465e-05/1.238, allocations: 16 kB / 1.221 GB, free: 11.77 MB / 0.7917 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00135/1.24, allocations: 0.6353 MB / 1.222 GB, free: 11.14 MB / 0.7917 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 0.005733/1.245, allocations: 3.966 MB / 1.226 GB, free: 6.922 MB / 0.7917 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001315/1.247, allocations: 0.5773 MB / 1.226 GB, free: 6.34 MB / 0.7917 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005497/1.247, allocations: 304.2 kB / 1.226 GB, free: 6.043 MB / 0.7917 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001538/1.249, allocations: 1.239 MB / 1.228 GB, free: 4.527 MB / 0.7917 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0007711/1.25, allocations: 331 kB / 1.228 GB, free: 4.191 MB / 0.7917 GB Notification: Performance of pre-optimization done (n=63): time 4.608e-06/1.25, allocations: 0 / 1.228 GB, free: 4.191 MB / 0.7917 GB Notification: Performance of matching and sorting (n=63): time 0.002956/1.253, allocations: 1.154 MB / 1.229 GB, free: 2.988 MB / 0.7917 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.362e-05/1.253, allocations: 85.67 kB / 1.229 GB, free: 2.887 MB / 0.7917 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001261/1.254, allocations: 0.8567 MB / 1.23 GB, free: 2.004 MB / 0.7917 GB Notification: Performance of collectPreVariables (initialization): time 6.441e-05/1.254, allocations: 41.7 kB / 1.23 GB, free: 1.957 MB / 0.7917 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004545/1.254, allocations: 456.2 kB / 1.231 GB, free: 1.508 MB / 0.7917 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002441/1.255, allocations: 216.8 kB / 1.231 GB, free: 1.293 MB / 0.7917 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.046e-05/1.255, allocations: 19.94 kB / 1.231 GB, free: 1.273 MB / 0.7917 GB Notification: Performance of setup shared object (initialization): time 0.0001862/1.255, allocations: 330 kB / 1.231 GB, free: 0.9453 MB / 0.7917 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004112/1.255, allocations: 205.2 kB / 1.231 GB, free: 0.7461 MB / 0.7917 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005067/1.256, allocations: 316.4 kB / 1.232 GB, free: 412 kB / 0.7917 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009342/1.257, allocations: 0.5347 MB / 1.232 GB, free: 15.84 MB / 0.8073 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.536e-06/1.257, allocations: 0 / 1.232 GB, free: 15.84 MB / 0.8073 GB Notification: Performance of matching and sorting (n=75) (initialization): time 0.00133/1.258, allocations: 0.7135 MB / 1.233 GB, free: 15.11 MB / 0.8073 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001323/1.258, allocations: 151.1 kB / 1.233 GB, free: 14.93 MB / 0.8073 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.09e-05/1.258, allocations: 0 / 1.233 GB, free: 14.93 MB / 0.8073 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006641/1.259, allocations: 112.7 kB / 1.233 GB, free: 14.82 MB / 0.8073 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004862/1.259, allocations: 123.8 kB / 1.233 GB, free: 14.7 MB / 0.8073 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006037/1.26, allocations: 0.6615 MB / 1.234 GB, free: 14.01 MB / 0.8073 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006772/1.261, allocations: 99.39 kB / 1.234 GB, free: 13.91 MB / 0.8073 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.475e-05/1.261, allocations: 20 kB / 1.234 GB, free: 13.89 MB / 0.8073 GB Notification: Performance of prepare postOptimizeDAE: time 9.027e-06/1.261, allocations: 4 kB / 1.234 GB, free: 13.89 MB / 0.8073 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0009717/1.262, allocations: 0.5722 MB / 1.234 GB, free: 13.31 MB / 0.8073 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.109e-06/1.262, allocations: 4 kB / 1.234 GB, free: 13.31 MB / 0.8073 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004136/1.262, allocations: 108.8 kB / 1.235 GB, free: 13.2 MB / 0.8073 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003953/1.263, allocations: 112.1 kB / 1.235 GB, free: 13.09 MB / 0.8073 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005676/1.263, allocations: 0.6655 MB / 1.235 GB, free: 12.4 MB / 0.8073 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005363/1.264, allocations: 83.47 kB / 1.235 GB, free: 12.32 MB / 0.8073 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.497e-05/1.264, allocations: 31.98 kB / 1.235 GB, free: 12.29 MB / 0.8073 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 (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 0.000532/1.264, allocations: 328.9 kB / 1.236 GB, free: 11.95 MB / 0.8073 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001237/1.265, allocations: 94.83 kB / 1.236 GB, free: 11.86 MB / 0.8073 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001812/1.266, allocations: 0.9561 MB / 1.237 GB, free: 10.89 MB / 0.8073 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.101e-05/1.266, allocations: 11.98 kB / 1.237 GB, free: 10.88 MB / 0.8073 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.093e-06/1.266, allocations: 0 / 1.237 GB, free: 10.88 MB / 0.8073 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001223/1.268, allocations: 0.8593 MB / 1.238 GB, free: 9.969 MB / 0.8073 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002787/1.27, allocations: 1.849 MB / 1.239 GB, free: 8.055 MB / 0.8073 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.973e-06/1.27, allocations: 0 / 1.239 GB, free: 8.055 MB / 0.8073 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004291/1.271, allocations: 103.8 kB / 1.24 GB, free: 7.953 MB / 0.8073 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006316/1.272, allocations: 165.6 kB / 1.24 GB, free: 7.785 MB / 0.8073 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.517e-05/1.272, allocations: 20 kB / 1.24 GB, free: 7.766 MB / 0.8073 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009014/1.273, allocations: 1.245 MB / 1.241 GB, free: 6.469 MB / 0.8073 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.888e-06/1.273, allocations: 4.031 kB / 1.241 GB, free: 6.465 MB / 0.8073 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001973/1.275, allocations: 1.284 MB / 1.242 GB, free: 5.148 MB / 0.8073 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004012/1.275, allocations: 279.5 kB / 1.242 GB, free: 4.855 MB / 0.8073 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001151/1.275, allocations: 12 kB / 1.242 GB, free: 4.844 MB / 0.8073 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005164/1.276, allocations: 55.95 kB / 1.243 GB, free: 4.789 MB / 0.8073 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000121/1.276, allocations: 48.53 kB / 1.243 GB, free: 4.742 MB / 0.8073 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.166e-05/1.276, allocations: 31.98 kB / 1.243 GB, free: 4.711 MB / 0.8073 GB Notification: Performance of sorting global known variables: time 0.0007683/1.277, allocations: 0.5972 MB / 1.243 GB, free: 4.102 MB / 0.8073 GB Notification: Performance of sort global known variables: time 1.4e-07/1.277, allocations: 0 / 1.243 GB, free: 4.102 MB / 0.8073 GB Notification: Performance of remove unused functions: time 0.00156/1.278, allocations: 0.5534 MB / 1.244 GB, free: 3.547 MB / 0.8073 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 0.001726/1.28, allocations: 0.7775 MB / 1.244 GB, free: 2.91 MB / 0.8073 GB Notification: Performance of simCode: created initialization part: time 0.001806/1.282, allocations: 0.922 MB / 1.245 GB, free: 1.992 MB / 0.8073 GB Notification: Performance of simCode: created event and clocks part: time 3.426e-06/1.282, allocations: 4 kB / 1.245 GB, free: 1.988 MB / 0.8073 GB Notification: Performance of simCode: created simulation system equations: time 0.00071/1.282, allocations: 392.5 kB / 1.246 GB, free: 1.605 MB / 0.8073 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00197/1.284, allocations: 434 kB / 1.246 GB, free: 1.184 MB / 0.8073 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003757/1.288, allocations: 2.571 MB / 1.249 GB, free: 14.58 MB / 0.823 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006541/1.289, allocations: 1.072 MB / 1.25 GB, free: 13.48 MB / 0.823 GB Notification: Performance of simCode: alias equations: time 0.0008392/1.29, allocations: 215.1 kB / 1.25 GB, free: 13.26 MB / 0.823 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000194/1.29, allocations: 83.36 kB / 1.25 GB, free: 13.18 MB / 0.823 GB Notification: Performance of SimCode: time 8.22e-07/1.29, allocations: 0 / 1.25 GB, free: 13.18 MB / 0.823 GB Notification: Performance of Templates: time 0.03776/1.328, allocations: 19.86 MB / 1.269 GB, free: 9.523 MB / 0.8386 GB make -j1 -f Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume.makefile (rm -f Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe ; mkfifo Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe ; head -c 1048576 < Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe >> ../files/Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume.sim & ./Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_latest_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume.pipe 2>&1)