Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking.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/Buildings 11.0.0-master/package.mo", uses=false) Using package Buildings with version 11.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-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: "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking,fileNamePrefix="Buildings_latest_Buildings_Controls_OBC_ASHRAE_G36_AHUs_MultiZone_VAV_SetPoints_Validation_ReturnFanAirflowTracking",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking,fileNamePrefix="Buildings_latest_Buildings_Controls_OBC_ASHRAE_G36_AHUs_MultiZone_VAV_SetPoints_Validation_ReturnFanAirflowTracking",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 0.0008857/0.0008858, allocations: 98.03 kB / 15.36 MB, free: 0.7344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.005329/0.005329, allocations: 168.9 kB / 16.26 MB, free: 6.648 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.209/1.209, allocations: 223.3 MB / 240.3 MB, free: 5.336 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-master/package.mo): time 2.421/2.421, allocations: 462.7 MB / 0.7364 GB, free: 15.57 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.0002757/0.0002757, allocations: 11.95 kB / 0.903 GB, free: 36.36 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.211/0.2113, allocations: 159.6 MB / 1.059 GB, free: 4.793 MB / 0.8106 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking): time 0.002007/0.2134, allocations: 1.89 MB / 1.061 GB, free: 2.902 MB / 0.8106 GB Notification: Performance of NFInst.instExpressions: time 0.001928/0.2153, allocations: 1.68 MB / 1.062 GB, free: 1.207 MB / 0.8106 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000214/0.2155, allocations: 11.94 kB / 1.062 GB, free: 1.195 MB / 0.8106 GB Notification: Performance of NFTyping.typeComponents: time 0.0001725/0.2157, allocations: 67.38 kB / 1.062 GB, free: 1.129 MB / 0.8106 GB Notification: Performance of NFTyping.typeBindings: time 0.0001721/0.2159, allocations: 75.42 kB / 1.062 GB, free: 1.055 MB / 0.8106 GB Notification: Performance of NFTyping.typeClassSections: time 0.0005499/0.2165, allocations: 295 kB / 1.063 GB, free: 0.7695 MB / 0.8106 GB Notification: Performance of NFFlatten.flatten: time 0.0004603/0.2169, allocations: 0.6528 MB / 1.063 GB, free: 120 kB / 0.8106 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003964/0.2173, allocations: 345.7 kB / 1.064 GB, free: 15.78 MB / 0.8262 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001551/0.2175, allocations: 167 kB / 1.064 GB, free: 15.62 MB / 0.8262 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001702/0.2177, allocations: 198.6 kB / 1.064 GB, free: 15.42 MB / 0.8262 GB Notification: Performance of NFPackage.collectConstants: time 3.94e-05/0.2177, allocations: 16 kB / 1.064 GB, free: 15.41 MB / 0.8262 GB Notification: Performance of NFFlatten.collectFunctions: time 7.545e-05/0.2178, allocations: 31.98 kB / 1.064 GB, free: 15.38 MB / 0.8262 GB Notification: Performance of NFScalarize.scalarize: time 5.429e-05/0.2179, allocations: 71.58 kB / 1.064 GB, free: 15.3 MB / 0.8262 GB Notification: Performance of NFVerifyModel.verify: time 0.0001672/0.218, allocations: 252.2 kB / 1.064 GB, free: 15.05 MB / 0.8262 GB Notification: Performance of NFConvertDAE.convert: time 0.0005972/0.2186, allocations: 0.9304 MB / 1.065 GB, free: 14.12 MB / 0.8262 GB Notification: Performance of FrontEnd - DAE generated: time 3.066e-06/0.2187, allocations: 3.938 kB / 1.065 GB, free: 14.11 MB / 0.8262 GB Notification: Performance of FrontEnd: time 1.162e-06/0.2187, allocations: 0 / 1.065 GB, free: 14.11 MB / 0.8262 GB Notification: Performance of Transformations before backend: time 7.614e-06/0.2187, allocations: 0 / 1.065 GB, free: 14.11 MB / 0.8262 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 117 * Number of variables: 117 Notification: Performance of Generate backend data structure: time 0.001123/0.2198, allocations: 0.828 MB / 1.066 GB, free: 13.22 MB / 0.8262 GB Notification: Performance of prepare preOptimizeDAE: time 3.071e-05/0.2198, allocations: 11.97 kB / 1.066 GB, free: 13.21 MB / 0.8262 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.087e-05/0.2199, allocations: 86.7 kB / 1.066 GB, free: 13.12 MB / 0.8262 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.917e-05/0.22, allocations: 64.19 kB / 1.066 GB, free: 13.05 MB / 0.8262 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007855/0.2208, allocations: 0.499 MB / 1.067 GB, free: 12.52 MB / 0.8262 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.808e-05/0.2209, allocations: 37.38 kB / 1.067 GB, free: 12.48 MB / 0.8262 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.145e-05/0.2209, allocations: 56.36 kB / 1.067 GB, free: 12.43 MB / 0.8262 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000841/0.2218, allocations: 0.511 MB / 1.067 GB, free: 11.9 MB / 0.8262 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.879e-06/0.2218, allocations: 0 / 1.067 GB, free: 11.9 MB / 0.8262 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.657e-05/0.2218, allocations: 27.98 kB / 1.067 GB, free: 11.87 MB / 0.8262 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.558e-06/0.2219, allocations: 12 kB / 1.067 GB, free: 11.86 MB / 0.8262 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008465/0.2227, allocations: 411.8 kB / 1.068 GB, free: 11.46 MB / 0.8262 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001814/0.2245, allocations: 1.693 MB / 1.069 GB, free: 9.691 MB / 0.8262 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0009185/0.2255, allocations: 0.595 MB / 1.07 GB, free: 9.051 MB / 0.8262 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004815/0.226, allocations: 245.9 kB / 1.07 GB, free: 8.805 MB / 0.8262 GB Notification: Performance of preOpt evalFunc (simulation): time 2.92e-05/0.226, allocations: 15.97 kB / 1.07 GB, free: 8.789 MB / 0.8262 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004536/0.2264, allocations: 233.4 kB / 1.071 GB, free: 8.547 MB / 0.8262 GB Notification: Performance of pre-optimization done (n=33): time 1.493e-06/0.2265, allocations: 0 / 1.071 GB, free: 8.547 MB / 0.8262 GB Notification: Performance of matching and sorting (n=33): time 0.001115/0.2276, allocations: 0.5228 MB / 1.071 GB, free: 8.02 MB / 0.8262 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.469e-05/0.2276, allocations: 114.8 kB / 1.071 GB, free: 7.883 MB / 0.8262 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003527/0.228, allocations: 393.5 kB / 1.072 GB, free: 7.488 MB / 0.8262 GB Notification: Performance of collectPreVariables (initialization): time 3.557e-05/0.228, allocations: 37.7 kB / 1.072 GB, free: 7.445 MB / 0.8262 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001545/0.2282, allocations: 267.9 kB / 1.072 GB, free: 7.176 MB / 0.8262 GB Notification: Performance of collectInitialBindings (initialization): time 7.048e-05/0.2283, allocations: 114.4 kB / 1.072 GB, free: 7.062 MB / 0.8262 GB Notification: Performance of simplifyInitialFunctions (initialization): time 5.678e-05/0.2283, allocations: 45.7 kB / 1.072 GB, free: 7.012 MB / 0.8262 GB Notification: Performance of setup shared object (initialization): time 9.56e-05/0.2284, allocations: 354.7 kB / 1.072 GB, free: 6.656 MB / 0.8262 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003808/0.2288, allocations: 176.7 kB / 1.072 GB, free: 6.48 MB / 0.8262 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004387/0.2293, allocations: 309.7 kB / 1.073 GB, free: 6.129 MB / 0.8262 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007731/0.2301, allocations: 453.1 kB / 1.073 GB, free: 5.641 MB / 0.8262 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.715e-06/0.2301, allocations: 4 kB / 1.073 GB, free: 5.637 MB / 0.8262 GB Notification: Performance of matching and sorting (n=48) (initialization): time 0.0009745/0.231, allocations: 0.5497 MB / 1.074 GB, free: 5.074 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 8.797e-05/0.2311, allocations: 197.3 kB / 1.074 GB, free: 4.832 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.39e-06/0.2312, allocations: 7.938 kB / 1.074 GB, free: 4.824 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.134e-05/0.2312, allocations: 4 kB / 1.074 GB, free: 4.82 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003187/0.2315, allocations: 103.9 kB / 1.074 GB, free: 4.719 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.104e-06/0.2315, allocations: 4 kB / 1.074 GB, free: 4.715 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003938/0.2319, allocations: 119.5 kB / 1.074 GB, free: 4.598 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.122e-05/0.2319, allocations: 20 kB / 1.074 GB, free: 4.578 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 6.722e-06/0.232, allocations: 5.406 kB / 1.074 GB, free: 4.574 MB / 0.8262 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0007239/0.2327, allocations: 441.4 kB / 1.075 GB, free: 4.137 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5e-06/0.2327, allocations: 8.031 kB / 1.075 GB, free: 4.129 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.979e-06/0.2327, allocations: 7.938 kB / 1.075 GB, free: 4.121 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002587/0.233, allocations: 79.89 kB / 1.075 GB, free: 4.043 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.614e-06/0.233, allocations: 11.92 kB / 1.075 GB, free: 4.031 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003372/0.2333, allocations: 91.64 kB / 1.075 GB, free: 3.941 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.018e-05/0.2334, allocations: 19.98 kB / 1.075 GB, free: 3.922 MB / 0.8262 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 13 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition1,$whenCondition2,yFan.y,$PRE.yFan.y,retFanAirTra1.conP.con1.y,retFanAirTra.conP.con1.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (46): * Single equations (assignments): 45 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001914/0.2336, allocations: 262.6 kB / 1.075 GB, free: 3.656 MB / 0.8262 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.364e-05/0.2336, allocations: 39.53 kB / 1.075 GB, free: 3.617 MB / 0.8262 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 7.721e-05/0.2337, allocations: 48.38 kB / 1.075 GB, free: 3.57 MB / 0.8262 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.05e-06/0.2337, allocations: 7.984 kB / 1.075 GB, free: 3.562 MB / 0.8262 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.617e-06/0.2337, allocations: 0 / 1.075 GB, free: 3.562 MB / 0.8262 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.967e-06/0.2337, allocations: 0 / 1.075 GB, free: 3.562 MB / 0.8262 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0013/0.235, allocations: 1.026 MB / 1.076 GB, free: 2.48 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.983e-06/0.235, allocations: 0 / 1.076 GB, free: 2.48 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002852/0.2353, allocations: 75.89 kB / 1.076 GB, free: 2.406 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.224e-06/0.2353, allocations: 0 / 1.076 GB, free: 2.406 MB / 0.8262 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.013e-05/0.2354, allocations: 15.98 kB / 1.076 GB, free: 2.391 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.603e-06/0.2354, allocations: 0 / 1.076 GB, free: 2.391 MB / 0.8262 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.02e-07/0.2354, allocations: 0 / 1.076 GB, free: 2.391 MB / 0.8262 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001123/0.2365, allocations: 0.6743 MB / 1.077 GB, free: 1.699 MB / 0.8262 GB Notification: Performance of postOpt removeConstants (simulation): time 6.58e-05/0.2366, allocations: 124.5 kB / 1.077 GB, free: 1.559 MB / 0.8262 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.972e-05/0.2366, allocations: 12.06 kB / 1.077 GB, free: 1.547 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002321/0.2369, allocations: 43.91 kB / 1.077 GB, free: 1.504 MB / 0.8262 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.883e-05/0.2369, allocations: 23.91 kB / 1.077 GB, free: 1.48 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.713e-05/0.2369, allocations: 11.98 kB / 1.077 GB, free: 1.469 MB / 0.8262 GB Notification: Performance of sorting global known variables: time 0.0002337/0.2372, allocations: 271.2 kB / 1.077 GB, free: 1.203 MB / 0.8262 GB Notification: Performance of sort global known variables: time 1.1e-07/0.2372, allocations: 0 / 1.077 GB, free: 1.203 MB / 0.8262 GB Notification: Performance of remove unused functions: time 0.0004851/0.2377, allocations: 187.2 kB / 1.078 GB, free: 1.02 MB / 0.8262 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 2 (retFanAirTra.conP.I.y,retFanAirTra1.conP.I.y) * Number of discrete variables: 3 ($whenCondition1,$whenCondition2,yFan.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (33): * Single equations (assignments): 32 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 1 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001361/0.239, allocations: 1.239 MB / 1.079 GB, free: 15.75 MB / 0.8419 GB Notification: Performance of simCode: created initialization part: time 0.001209/0.2403, allocations: 0.7371 MB / 1.079 GB, free: 14.99 MB / 0.8419 GB Notification: Performance of simCode: created event and clocks part: time 1.723e-06/0.2403, allocations: 0 / 1.079 GB, free: 14.99 MB / 0.8419 GB Notification: Performance of simCode: created simulation system equations: time 0.0003559/0.2406, allocations: 182.1 kB / 1.08 GB, free: 14.82 MB / 0.8419 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005223/0.2412, allocations: 110.9 kB / 1.08 GB, free: 14.71 MB / 0.8419 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005237/0.2464, allocations: 4.356 MB / 1.084 GB, free: 10.2 MB / 0.8419 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002934/0.2467, allocations: 0.8315 MB / 1.085 GB, free: 9.336 MB / 0.8419 GB Notification: Performance of simCode: alias equations: time 0.000235/0.247, allocations: 63.27 kB / 1.085 GB, free: 9.27 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002023/0.2472, allocations: 179.4 kB / 1.085 GB, free: 9.094 MB / 0.8419 GB Notification: Performance of SimCode: time 3.91e-07/0.2472, allocations: 0 / 1.085 GB, free: 9.094 MB / 0.8419 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 2.291/2.539, allocations: 9.072 MB / 1.094 GB, free: 332 kB / 0.8419 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002739/2.539, allocations: 266.3 kB / 1.094 GB, free: 15.97 MB / 0.8575 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.858/5.397, allocations: 3.375 kB / 1.094 GB, free: 15.97 MB / 0.8575 GB (rm -f Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking.pipe ; mkfifo Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking.pipe ; head -c 1048576 < Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking.pipe >> ../files/Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking_res.mat --tempDir=temp_Buildings_latest_Buildings_Controls_OBC_ASHRAE_G36_AHUs_MultiZone_VAV_SetPoints_Validation_ReturnFanAirflowTracking_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_latest_Buildings_Controls_OBC_ASHRAE_G36_AHUs_MultiZone_VAV_SetPoints_Validation_ReturnFanAirflowTracking.fmu > Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanAirflowTracking.pipe 2>&1)