Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_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/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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_IDEAS.Airflow.Multizone.Examples.TrickleVent") translateModel(IDEAS.Airflow.Multizone.Examples.TrickleVent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=8640,variableFilter="",fileNamePrefix="IDEAS_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 0.001529/0.001529, allocations: 106.4 kB / 16.37 MB, free: 6.438 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00172/0.00172, allocations: 189.1 kB / 17.3 MB, free: 5.781 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.306/1.306, allocations: 222.9 MB / 241 MB, free: 15.19 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.758/0.758, allocations: 132.2 MB / 423.3 MB, free: 6.539 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001317/0.001317, allocations: 59.91 kB / 0.5032 GB, free: 10.91 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3076/0.309, allocations: 80.18 MB / 0.5815 GB, free: 27.64 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Airflow.Multizone.Examples.TrickleVent): time 0.4535/0.7625, allocations: 187.1 MB / 0.7642 GB, free: 1.773 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.01845/0.781, allocations: 16.31 MB / 0.7801 GB, free: 1.52 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001998/0.7831, allocations: 51.78 kB / 0.7802 GB, free: 1.52 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.001677/0.7848, allocations: 0.7183 MB / 0.7809 GB, free: 1.508 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.006014/0.7909, allocations: 2.355 MB / 0.7832 GB, free: 1.418 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.00487/0.7957, allocations: 1.945 MB / 0.7851 GB, free: 1.367 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.004271/0.8, allocations: 3.575 MB / 0.7885 GB, free: 1.34 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002448/0.8025, allocations: 2.061 MB / 0.7906 GB, free: 1.074 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003224/0.8057, allocations: 1.491 MB / 0.792 GB, free: 1.062 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002102/0.8078, allocations: 1.255 MB / 0.7932 GB, free: 1.059 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0003888/0.8082, allocations: 215.8 kB / 0.7934 GB, free: 1.059 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005294/0.8135, allocations: 2.156 MB / 0.7956 GB, free: 1.031 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0008214/0.8144, allocations: 0.7452 MB / 0.7963 GB, free: 0.9453 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.001621/0.816, allocations: 1.194 MB / 0.7974 GB, free: 0.5898 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.005671/0.8217, allocations: 3.832 MB / 0.8012 GB, free: 60 kB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 5.18e-06/0.8217, allocations: 0.9375 kB / 0.8012 GB, free: 60 kB / 0.5762 GB Notification: Performance of FrontEnd: time 1.844e-06/0.8217, allocations: 0 / 0.8012 GB, free: 60 kB / 0.5762 GB Notification: Performance of Transformations before backend: time 3.209e-05/0.8218, allocations: 0 / 0.8012 GB, free: 60 kB / 0.5762 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 0.004406/0.8262, allocations: 2.74 MB / 0.8039 GB, free: 14.74 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 3.685e-05/0.8262, allocations: 19.09 kB / 0.8039 GB, free: 14.73 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003365/0.8296, allocations: 0.5399 MB / 0.8044 GB, free: 14.61 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00265/0.8323, allocations: 1.533 MB / 0.8059 GB, free: 14.14 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.425e-05/0.8324, allocations: 125.9 kB / 0.806 GB, free: 14.13 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002122/0.8326, allocations: 172 kB / 0.8062 GB, free: 14.13 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003083/0.8357, allocations: 1.985 MB / 0.8081 GB, free: 13.88 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.911e-05/0.8357, allocations: 2.438 kB / 0.8081 GB, free: 13.88 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001657/0.8359, allocations: 71.59 kB / 0.8082 GB, free: 13.88 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.847e-05/0.836, allocations: 70.83 kB / 0.8083 GB, free: 13.88 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003091/0.8391, allocations: 2.039 MB / 0.8103 GB, free: 13.86 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 0.009391/0.8485, allocations: 7.189 MB / 0.8173 GB, free: 10.73 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002323/0.8508, allocations: 1.577 MB / 0.8188 GB, free: 9.895 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001169/0.852, allocations: 0.7232 MB / 0.8195 GB, free: 9.559 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006742/0.8527, allocations: 0.6527 MB / 0.8202 GB, free: 8.859 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001433/0.8541, allocations: 0.9037 MB / 0.821 GB, free: 8.328 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=142): time 3.156e-06/0.8542, allocations: 0 / 0.821 GB, free: 8.328 MB / 0.5919 GB Notification: Performance of matching and sorting (n=142): time 0.005361/0.8595, allocations: 2.516 MB / 0.8235 GB, free: 6.98 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001002/0.8596, allocations: 225.7 kB / 0.8237 GB, free: 6.727 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001861/0.8615, allocations: 1.484 MB / 0.8252 GB, free: 5.953 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 0.0001177/0.8616, allocations: 54.48 kB / 0.8252 GB, free: 5.902 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006348/0.8623, allocations: 0.8217 MB / 0.826 GB, free: 5.18 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003846/0.8627, allocations: 483.1 kB / 0.8265 GB, free: 4.77 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003715/0.863, allocations: 260.8 kB / 0.8267 GB, free: 4.613 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0001252/0.8632, allocations: 357 kB / 0.8271 GB, free: 4.273 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009359/0.8641, allocations: 0.5676 MB / 0.8276 GB, free: 4 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001108/0.8652, allocations: 0.7278 MB / 0.8283 GB, free: 3.578 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002057/0.8673, allocations: 1.308 MB / 0.8296 GB, free: 2.922 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.759e-06/0.8673, allocations: 1.094 kB / 0.8296 GB, free: 2.922 MB / 0.5919 GB Notification: Performance of matching and sorting (n=164) (initialization): time 0.00348/0.8708, allocations: 1.703 MB / 0.8313 GB, free: 1.301 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 2.122e-05/0.8708, allocations: 9.094 kB / 0.8313 GB, free: 1.293 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.028e-05/0.8709, allocations: 3.984 kB / 0.8313 GB, free: 1.289 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007753/0.8716, allocations: 138.9 kB / 0.8314 GB, free: 1.148 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001358/0.873, allocations: 305.4 kB / 0.8317 GB, free: 0.8672 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003951/0.877, allocations: 4.536 MB / 0.8361 GB, free: 11.93 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001572/0.8786, allocations: 140.6 kB / 0.8363 GB, free: 11.8 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001602/0.8787, allocations: 55.97 kB / 0.8363 GB, free: 11.74 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001737/0.8805, allocations: 0.9248 MB / 0.8372 GB, free: 10.81 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001168/0.8817, allocations: 0.7231 MB / 0.8379 GB, free: 10.05 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002101/0.8838, allocations: 1.285 MB / 0.8392 GB, free: 8.754 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.166e-06/0.8838, allocations: 4 kB / 0.8392 GB, free: 8.75 MB / 0.6075 GB Notification: Performance of matching and sorting (n=164) (initialization_lambda0): time 0.003517/0.8873, allocations: 1.685 MB / 0.8408 GB, free: 7.059 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 1.339e-05/0.8873, allocations: 9.875 kB / 0.8409 GB, free: 7.051 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.083e-06/0.8874, allocations: 7.188 kB / 0.8409 GB, free: 7.047 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007149/0.8881, allocations: 140.6 kB / 0.841 GB, free: 6.902 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001326/0.8894, allocations: 299.5 kB / 0.8413 GB, free: 6.625 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00386/0.8933, allocations: 4.539 MB / 0.8457 GB, free: 1.684 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001533/0.8948, allocations: 119 kB / 0.8458 GB, free: 1.566 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001346/0.895, allocations: 59.95 kB / 0.8459 GB, free: 1.508 MB / 0.6075 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 0.0004165/0.8954, allocations: 261 kB / 0.8461 GB, free: 1.262 MB / 0.6075 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005271/0.8959, allocations: 177.8 kB / 0.8463 GB, free: 1.086 MB / 0.6075 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004092/0.9, allocations: 1.915 MB / 0.8482 GB, free: 15.16 MB / 0.6231 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.437e-05/0.9001, allocations: 16 kB / 0.8482 GB, free: 15.14 MB / 0.6231 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.467e-06/0.9001, allocations: 11.81 kB / 0.8482 GB, free: 15.13 MB / 0.6231 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.00289/0.903, allocations: 1.575 MB / 0.8497 GB, free: 13.52 MB / 0.6231 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006554/0.9096, allocations: 3.693 MB / 0.8533 GB, free: 9.801 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.65e-06/0.9096, allocations: 0 / 0.8533 GB, free: 9.801 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001412/0.911, allocations: 312.4 kB / 0.8536 GB, free: 9.508 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005964/0.9116, allocations: 130.5 kB / 0.8538 GB, free: 9.371 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001112/0.9117, allocations: 43.91 kB / 0.8538 GB, free: 9.328 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003774/0.9155, allocations: 4.538 MB / 0.8582 GB, free: 4.383 MB / 0.6231 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.974e-06/0.9155, allocations: 4.25 kB / 0.8582 GB, free: 4.379 MB / 0.6231 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004881/0.9204, allocations: 2.684 MB / 0.8609 GB, free: 1.676 MB / 0.6231 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001096/0.9215, allocations: 438.4 kB / 0.8613 GB, free: 1.227 MB / 0.6231 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003856/0.9219, allocations: 32 kB / 0.8613 GB, free: 1.195 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001341/0.9233, allocations: 87.02 kB / 0.8614 GB, free: 1.113 MB / 0.6231 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002094/0.9235, allocations: 101.2 kB / 0.8615 GB, free: 1.012 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001394/0.9236, allocations: 55.97 kB / 0.8615 GB, free: 0.957 MB / 0.6231 GB Notification: Performance of sorting global known variables: time 0.001544/0.9252, allocations: 1.035 MB / 0.8626 GB, free: 15.93 MB / 0.6387 GB Notification: Performance of sort global known variables: time 1.5e-07/0.9252, allocations: 0 / 0.8626 GB, free: 15.93 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.002756/0.928, allocations: 1.079 MB / 0.8636 GB, free: 14.84 MB / 0.6387 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 0.002012/0.93, allocations: 0.7803 MB / 0.8644 GB, free: 14.32 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.004942/0.9349, allocations: 2.907 MB / 0.8672 GB, free: 11.38 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 5.63e-06/0.935, allocations: 448 / 0.8672 GB, free: 11.38 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.001756/0.9367, allocations: 1.125 MB / 0.8683 GB, free: 10.24 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003582/0.9403, allocations: 0.7424 MB / 0.869 GB, free: 9.551 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007535/0.9479, allocations: 3.957 MB / 0.8729 GB, free: 5.586 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001394/0.9493, allocations: 1.517 MB / 0.8744 GB, free: 4.027 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.002263/0.9516, allocations: 0.5787 MB / 0.8749 GB, free: 3.441 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005194/0.9521, allocations: 167.4 kB / 0.8751 GB, free: 3.277 MB / 0.6387 GB Notification: Performance of SimCode: time 5.21e-07/0.9521, allocations: 3.938 kB / 0.8751 GB, free: 3.273 MB / 0.6387 GB Notification: Performance of Templates: time 0.05633/1.008, allocations: 34.44 MB / 0.9087 GB, free: 1.309 MB / 0.67 GB make -j1 -f IDEAS_IDEAS.Airflow.Multizone.Examples.TrickleVent.makefile (rm -f IDEAS_IDEAS.Airflow.Multizone.Examples.TrickleVent.pipe ; mkfifo IDEAS_IDEAS.Airflow.Multizone.Examples.TrickleVent.pipe ; head -c 1048576 < IDEAS_IDEAS.Airflow.Multizone.Examples.TrickleVent.pipe >> ../files/IDEAS_IDEAS.Airflow.Multizone.Examples.TrickleVent.sim & ./IDEAS_IDEAS.Airflow.Multizone.Examples.TrickleVent -abortSlowSimulation -alarm=480 -s gbode -lv LOG_STATS > IDEAS_IDEAS.Airflow.Multizone.Examples.TrickleVent.pipe 2>&1)