Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent.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/IDEAS 3.0.0-master/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-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(IDEAS.Airflow.Multizone.Examples.TrickleVent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=8640,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent") translateModel(IDEAS.Airflow.Multizone.Examples.TrickleVent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=8640,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.006311/0.006311, allocations: 106.8 kB / 15.74 MB, free: 5.949 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001291/0.001291, allocations: 189.3 kB / 16.67 MB, free: 5.879 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.403/1.403, allocations: 222.9 MB / 240.4 MB, free: 15.06 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.7622/0.7622, allocations: 135.1 MB / 425.7 MB, free: 4.082 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001135/0.001135, allocations: 67.86 kB / 0.5856 GB, free: 21.74 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.16/0.1611, allocations: 80.92 MB / 0.6646 GB, free: 5.891 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Airflow.Multizone.Examples.TrickleVent): time 0.6548/0.816, allocations: 187.1 MB / 0.8473 GB, free: 15.99 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.02151/0.8375, allocations: 16.31 MB / 0.8633 GB, free: 2.805 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002772/0.8404, allocations: 50.84 kB / 0.8633 GB, free: 2.789 MB / 0.6231 GB Notification: Performance of NFTyping.typeComponents: time 0.002234/0.8426, allocations: 0.7525 MB / 0.864 GB, free: 2.164 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.007288/0.85, allocations: 2.409 MB / 0.8664 GB, free: 380 kB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.005316/0.8553, allocations: 1.953 MB / 0.8683 GB, free: 14.68 MB / 0.6387 GB Notification: Performance of NFFlatten.flatten: time 0.005167/0.8605, allocations: 3.581 MB / 0.8718 GB, free: 11.09 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003382/0.8639, allocations: 2.058 MB / 0.8738 GB, free: 8.98 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004012/0.8679, allocations: 1.53 MB / 0.8753 GB, free: 7.477 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002228/0.8701, allocations: 1.249 MB / 0.8765 GB, free: 6.223 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.0006226/0.8708, allocations: 220 kB / 0.8767 GB, free: 6.008 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006065/0.8768, allocations: 2.164 MB / 0.8788 GB, free: 3.84 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.001005/0.8779, allocations: 0.74 MB / 0.8796 GB, free: 3.098 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.002707/0.8806, allocations: 1.197 MB / 0.8807 GB, free: 1.895 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.007502/0.8881, allocations: 3.828 MB / 0.8845 GB, free: 14.05 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 6.372e-06/0.8881, allocations: 4 kB / 0.8845 GB, free: 14.05 MB / 0.6544 GB Notification: Performance of FrontEnd: time 2.074e-06/0.8881, allocations: 0 / 0.8845 GB, free: 14.05 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 0.0001166/0.8882, allocations: 3.938 kB / 0.8845 GB, free: 14.04 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 441 * Number of variables: 441 Notification: Performance of Generate backend data structure: time 0.005893/0.8941, allocations: 2.742 MB / 0.8872 GB, free: 11.23 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 3.912e-05/0.8942, allocations: 21.03 kB / 0.8872 GB, free: 11.21 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003565/0.8978, allocations: 0.5396 MB / 0.8877 GB, free: 10.67 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002581/0.9004, allocations: 1.524 MB / 0.8892 GB, free: 9.094 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 9.774e-05/0.9005, allocations: 131.5 kB / 0.8893 GB, free: 8.965 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002209/0.9007, allocations: 168 kB / 0.8895 GB, free: 8.801 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00317/0.9039, allocations: 1.984 MB / 0.8914 GB, free: 6.738 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.854e-05/0.9039, allocations: 3.938 kB / 0.8914 GB, free: 6.734 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001559/0.9041, allocations: 76 kB / 0.8915 GB, free: 6.66 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.456e-05/0.9042, allocations: 75.3 kB / 0.8916 GB, free: 6.586 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003364/0.9075, allocations: 2.038 MB / 0.8936 GB, free: 4.543 MB / 0.6544 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 0.009883/0.9174, allocations: 7.177 MB / 0.9006 GB, free: 12.99 MB / 0.67 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00242/0.9199, allocations: 1.589 MB / 0.9021 GB, free: 11.36 MB / 0.67 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001082/0.921, allocations: 0.7304 MB / 0.9028 GB, free: 10.63 MB / 0.67 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000693/0.9217, allocations: 0.6494 MB / 0.9035 GB, free: 9.848 MB / 0.67 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001462/0.9231, allocations: 0.9074 MB / 0.9043 GB, free: 8.922 MB / 0.67 GB Notification: Performance of pre-optimization done (n=142): time 3.096e-06/0.9232, allocations: 0 / 0.9043 GB, free: 8.922 MB / 0.67 GB Notification: Performance of matching and sorting (n=142): time 0.00538/0.9285, allocations: 2.509 MB / 0.9068 GB, free: 6.344 MB / 0.67 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000118/0.9287, allocations: 226.9 kB / 0.907 GB, free: 6.07 MB / 0.67 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001766/0.9305, allocations: 1.482 MB / 0.9085 GB, free: 4.574 MB / 0.67 GB Notification: Performance of collectPreVariables (initialization): time 0.0001216/0.9306, allocations: 53.7 kB / 0.9085 GB, free: 4.516 MB / 0.67 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006709/0.9313, allocations: 0.8267 MB / 0.9093 GB, free: 3.676 MB / 0.67 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004173/0.9317, allocations: 488.9 kB / 0.9098 GB, free: 3.191 MB / 0.67 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003873/0.9321, allocations: 254.7 kB / 0.91 GB, free: 2.938 MB / 0.67 GB Notification: Performance of setup shared object (initialization): time 0.0001464/0.9322, allocations: 361.9 kB / 0.9104 GB, free: 2.578 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009956/0.9332, allocations: 0.5603 MB / 0.9109 GB, free: 2.016 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00114/0.9344, allocations: 0.7316 MB / 0.9116 GB, free: 1.242 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002117/0.9365, allocations: 1.301 MB / 0.9129 GB, free: 15.91 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.709e-06/0.9365, allocations: 0 / 0.9129 GB, free: 15.91 MB / 0.6856 GB Notification: Performance of matching and sorting (n=164) (initialization): time 0.003358/0.9399, allocations: 1.704 MB / 0.9146 GB, free: 14.2 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 1.939e-05/0.9399, allocations: 8 kB / 0.9146 GB, free: 14.19 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.366e-06/0.9399, allocations: 0 / 0.9146 GB, free: 14.19 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007702/0.9407, allocations: 146.5 kB / 0.9147 GB, free: 14.04 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001346/0.9421, allocations: 307.6 kB / 0.915 GB, free: 13.73 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00417/0.9463, allocations: 4.544 MB / 0.9194 GB, free: 8.77 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001422/0.9477, allocations: 152.6 kB / 0.9196 GB, free: 8.621 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001125/0.9478, allocations: 53.45 kB / 0.9196 GB, free: 8.57 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00163/0.9495, allocations: 0.9163 MB / 0.9205 GB, free: 7.648 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001131/0.9506, allocations: 0.716 MB / 0.9212 GB, free: 6.895 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002089/0.9527, allocations: 1.295 MB / 0.9225 GB, free: 5.578 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.424e-06/0.9527, allocations: 0 / 0.9225 GB, free: 5.578 MB / 0.6856 GB Notification: Performance of matching and sorting (n=164) (initialization_lambda0): time 0.003228/0.9559, allocations: 1.68 MB / 0.9241 GB, free: 3.879 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 1.303e-05/0.956, allocations: 6.031 kB / 0.9242 GB, free: 3.875 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.813e-06/0.956, allocations: 7.984 kB / 0.9242 GB, free: 3.867 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006782/0.9567, allocations: 142.6 kB / 0.9243 GB, free: 3.719 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001274/0.9579, allocations: 295.6 kB / 0.9246 GB, free: 3.43 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003888/0.9618, allocations: 4.537 MB / 0.929 GB, free: 14.47 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001336/0.9632, allocations: 123.2 kB / 0.9291 GB, free: 14.35 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001049/0.9633, allocations: 51.97 kB / 0.9292 GB, free: 14.3 MB / 0.7012 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 8 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,$whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (158): * Single equations (assignments): 155 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,2,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0003746/0.9637, allocations: 256 kB / 0.9294 GB, free: 14.04 MB / 0.7012 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002939/0.964, allocations: 177.8 kB / 0.9296 GB, free: 13.86 MB / 0.7012 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003856/0.9679, allocations: 1.932 MB / 0.9315 GB, free: 11.91 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.62e-05/0.9679, allocations: 19.94 kB / 0.9315 GB, free: 11.89 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.188e-06/0.9679, allocations: 0 / 0.9315 GB, free: 11.89 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002905/0.9708, allocations: 1.58 MB / 0.933 GB, free: 10.27 MB / 0.7012 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006013/0.9768, allocations: 3.683 MB / 0.9366 GB, free: 6.512 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.93e-06/0.9768, allocations: 0 / 0.9366 GB, free: 6.512 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001373/0.9782, allocations: 307.6 kB / 0.9369 GB, free: 6.211 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006068/0.9788, allocations: 138.4 kB / 0.9371 GB, free: 6.066 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.95e-05/0.979, allocations: 39.97 kB / 0.9371 GB, free: 6.027 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003927/0.9829, allocations: 4.541 MB / 0.9415 GB, free: 1.062 MB / 0.7012 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.443e-06/0.9829, allocations: 0 / 0.9415 GB, free: 1.062 MB / 0.7012 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004789/0.9877, allocations: 2.69 MB / 0.9442 GB, free: 14.34 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008114/0.9885, allocations: 438.5 kB / 0.9446 GB, free: 13.89 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002/0.9887, allocations: 28 kB / 0.9446 GB, free: 13.86 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001109/0.9898, allocations: 90.5 kB / 0.9447 GB, free: 13.78 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002123/0.9901, allocations: 101.2 kB / 0.9448 GB, free: 13.68 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000132/0.9902, allocations: 55.95 kB / 0.9448 GB, free: 13.62 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.001374/0.9916, allocations: 1.042 MB / 0.9459 GB, free: 12.59 MB / 0.7169 GB Notification: Performance of sort global known variables: time 1.21e-07/0.9916, allocations: 96 / 0.9459 GB, free: 12.59 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.002473/0.9941, allocations: 1.083 MB / 0.9469 GB, free: 11.5 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 5 (room.dynBal.U,room.dynBal.m,room.dynBal.mXi[1],tabDat_m_flow.mExc,tabDat_V_flow.mExc) * Number of discrete variables: 4 ($whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of discrete states: 2 (weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (149): * Single equations (assignments): 144 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,2,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001984/0.9961, allocations: 0.7682 MB / 0.9477 GB, free: 10.91 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.005041/1.001, allocations: 2.905 MB / 0.9505 GB, free: 7.93 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 7.495e-06/1.001, allocations: 448 / 0.9505 GB, free: 7.926 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.001763/1.003, allocations: 1.132 MB / 0.9516 GB, free: 6.758 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002986/1.006, allocations: 0.7355 MB / 0.9523 GB, free: 6.047 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007135/1.013, allocations: 3.947 MB / 0.9562 GB, free: 2.066 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00117/1.014, allocations: 1.521 MB / 0.9577 GB, free: 0.5078 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.002313/1.017, allocations: 0.5826 MB / 0.9582 GB, free: 15.92 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004545/1.017, allocations: 159.4 kB / 0.9584 GB, free: 15.77 MB / 0.7325 GB Notification: Performance of SimCode: time 1.022e-06/1.017, allocations: 0 / 0.9584 GB, free: 15.77 MB / 0.7325 GB Notification: Performance of Templates: time 0.05835/1.075, allocations: 34.77 MB / 0.9923 GB, free: 13.29 MB / 0.7637 GB make -j1 -f IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent.makefile (rm -f IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent.pipe ; mkfifo IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent.pipe >> ../files/IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent.sim & ./IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.Airflow.Multizone.Examples.TrickleVent.pipe 2>&1)