Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.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 11.1.0-maint.11.x/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/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.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement,fileNamePrefix="Buildings_11_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomOneElement",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement,fileNamePrefix="Buildings_11_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomOneElement",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 0.00175/0.00175, allocations: 108 kB / 15.6 MB, free: 128 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001951/0.001951, allocations: 197.9 kB / 16.53 MB, free: 6.672 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.374/1.374, allocations: 222.9 MB / 240.2 MB, free: 4.406 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.548/2.548, allocations: 469.8 MB / 0.7424 GB, free: 7.488 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001755/0.001755, allocations: 72.52 kB / 0.9087 GB, free: 34.3 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2398/0.2416, allocations: 159.2 MB / 1.064 GB, free: 14.25 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement): time 0.1683/0.4099, allocations: 162 MB / 1.222 GB, free: 11.64 MB / 0.9825 GB Notification: Performance of NFInst.instExpressions: time 0.03554/0.4455, allocations: 26.94 MB / 1.249 GB, free: 0.6211 MB / 0.9981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001704/0.4472, allocations: 67.69 kB / 1.249 GB, free: 0.5547 MB / 0.9981 GB Notification: Performance of NFTyping.typeComponents: time 0.4739/0.9212, allocations: 1.038 MB / 1.25 GB, free: 5.473 MB / 0.9981 GB Notification: Performance of NFTyping.typeBindings: time 0.004314/0.9255, allocations: 1.793 MB / 1.251 GB, free: 5.473 MB / 0.9981 GB Notification: Performance of NFTyping.typeClassSections: time 0.002871/0.9284, allocations: 1.717 MB / 1.253 GB, free: 5.469 MB / 0.9981 GB Notification: Performance of NFFlatten.flatten: time 0.003895/0.9323, allocations: 5.274 MB / 1.258 GB, free: 5.461 MB / 0.9981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003678/0.936, allocations: 4.165 MB / 1.262 GB, free: 21.04 MB / 1.014 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002403/0.9384, allocations: 2.092 MB / 1.264 GB, free: 21.04 MB / 1.014 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002377/0.9408, allocations: 2.516 MB / 1.267 GB, free: 21.04 MB / 1.014 GB Notification: Performance of NFPackage.collectConstants: time 0.0007624/0.9416, allocations: 462 kB / 1.267 GB, free: 21.04 MB / 1.014 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002569/0.9442, allocations: 1.034 MB / 1.268 GB, free: 21.03 MB / 1.014 GB Notification: Performance of NFScalarize.scalarize: time 0.001222/0.9454, allocations: 1.18 MB / 1.269 GB, free: 20.95 MB / 1.014 GB Notification: Performance of NFVerifyModel.verify: time 0.002637/0.9481, allocations: 2.13 MB / 1.271 GB, free: 20.35 MB / 1.014 GB Notification: Performance of NFConvertDAE.convert: time 0.007729/0.9558, allocations: 5.878 MB / 1.277 GB, free: 19.57 MB / 1.014 GB Notification: Performance of FrontEnd - DAE generated: time 3.797e-06/0.9558, allocations: 0.8125 kB / 1.277 GB, free: 19.57 MB / 1.014 GB Notification: Performance of FrontEnd: time 1.172e-06/0.9558, allocations: 0 / 1.277 GB, free: 19.57 MB / 1.014 GB Notification: Performance of Transformations before backend: time 9.872e-05/0.9559, allocations: 0 / 1.277 GB, free: 19.57 MB / 1.014 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 816 * Number of variables: 816 Notification: Performance of Generate backend data structure: time 0.008129/0.9641, allocations: 4.627 MB / 1.282 GB, free: 17.73 MB / 1.014 GB Notification: Performance of prepare preOptimizeDAE: time 3.68e-05/0.9641, allocations: 8.75 kB / 1.282 GB, free: 17.73 MB / 1.014 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0005185/0.9646, allocations: 451.7 kB / 1.282 GB, free: 17.67 MB / 1.014 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0121/0.9767, allocations: 2.766 MB / 1.285 GB, free: 17.46 MB / 1.014 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003781/0.9805, allocations: 2.284 MB / 1.287 GB, free: 16.84 MB / 1.014 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001521/0.9807, allocations: 237.9 kB / 1.287 GB, free: 16.83 MB / 1.014 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004875/0.9812, allocations: 316.8 kB / 1.288 GB, free: 16.83 MB / 1.014 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.009326/0.9905, allocations: 5.157 MB / 1.293 GB, free: 16.56 MB / 1.014 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.912e-05/0.9906, allocations: 4.312 kB / 1.293 GB, free: 16.56 MB / 1.014 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005263/0.9912, allocations: 129.1 kB / 1.293 GB, free: 16.56 MB / 1.014 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.716e-05/0.9913, allocations: 78.66 kB / 1.293 GB, free: 16.56 MB / 1.014 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01726/1.009, allocations: 6.287 MB / 1.299 GB, free: 16.53 MB / 1.014 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 0.0199/1.028, allocations: 14.94 MB / 1.314 GB, free: 12.19 MB / 1.014 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008386/1.037, allocations: 4.699 MB / 1.318 GB, free: 12.06 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004136/1.041, allocations: 2.43 MB / 1.321 GB, free: 12.02 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000847/1.042, allocations: 0.6743 MB / 1.321 GB, free: 11.36 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004592/1.046, allocations: 2.625 MB / 1.324 GB, free: 10.47 MB / 1.014 GB Notification: Performance of pre-optimization done (n=278): time 4.228e-06/1.046, allocations: 2.406 kB / 1.324 GB, free: 10.47 MB / 1.014 GB Notification: Performance of matching and sorting (n=278): time 0.01532/1.062, allocations: 7.397 MB / 1.331 GB, free: 7.914 MB / 1.014 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001347/1.062, allocations: 216.3 kB / 1.331 GB, free: 7.684 MB / 1.014 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002819/1.065, allocations: 2.435 MB / 1.334 GB, free: 6.473 MB / 1.014 GB Notification: Performance of collectPreVariables (initialization): time 0.0002343/1.065, allocations: 79.28 kB / 1.334 GB, free: 6.402 MB / 1.014 GB Notification: Performance of collectInitialEqns (initialization): time 0.001154/1.066, allocations: 1.34 MB / 1.335 GB, free: 5.238 MB / 1.014 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008112/1.067, allocations: 0.9037 MB / 1.336 GB, free: 4.461 MB / 1.014 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000864/1.068, allocations: 498.1 kB / 1.336 GB, free: 4.188 MB / 1.014 GB Notification: Performance of setup shared object (initialization): time 0.0001119/1.068, allocations: 308.7 kB / 1.337 GB, free: 3.887 MB / 1.014 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004225/1.072, allocations: 2.007 MB / 1.339 GB, free: 2.871 MB / 1.014 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004688/1.077, allocations: 2.338 MB / 1.341 GB, free: 1.543 MB / 1.014 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.008616/1.086, allocations: 4.255 MB / 1.345 GB, free: 15.3 MB / 1.029 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.432e-06/1.086, allocations: 0 / 1.345 GB, free: 15.3 MB / 1.029 GB Notification: Performance of matching and sorting (n=314) (initialization): time 0.01041/1.096, allocations: 4.946 MB / 1.35 GB, free: 12.82 MB / 1.029 GB Notification: Performance of prepare postOptimizeDAE: time 2.433e-05/1.096, allocations: 14.25 kB / 1.35 GB, free: 12.82 MB / 1.029 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.139e-05/1.096, allocations: 2.688 kB / 1.35 GB, free: 12.82 MB / 1.029 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005579/1.097, allocations: 237.6 kB / 1.35 GB, free: 12.72 MB / 1.029 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003561/1.1, allocations: 0.8011 MB / 1.351 GB, free: 12.48 MB / 1.029 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003972/1.104, allocations: 3.373 MB / 1.354 GB, free: 9.043 MB / 1.029 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003554/1.108, allocations: 0.5518 MB / 1.355 GB, free: 8.488 MB / 1.029 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002577/1.108, allocations: 103.9 kB / 1.355 GB, free: 8.387 MB / 1.029 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 32 ($PRE.intGai.nextTimeEvent,$whenCondition1,intGai.nextTimeEventScaled,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEvent,HDirTil[2].incAng.decAng.tNext,$PRE.HDirTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,$PRE.HDirTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,$PRE.HDifTil[2].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,$PRE.HDifTil[1].incAng.decAng.tNext,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition9,$whenCondition10) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (292): * Single equations (assignments): 291 * 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): 1 system {(2,21,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.001884/1.11, allocations: 0.9537 MB / 1.356 GB, free: 7.453 MB / 1.029 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00062/1.111, allocations: 276.6 kB / 1.356 GB, free: 7.18 MB / 1.029 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01257/1.123, allocations: 5.634 MB / 1.362 GB, free: 1.496 MB / 1.029 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.123e-05/1.123, allocations: 28 kB / 1.362 GB, free: 1.469 MB / 1.029 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.03e-05/1.123, allocations: 7.938 kB / 1.362 GB, free: 1.461 MB / 1.029 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.716e-05/1.123, allocations: 11.95 kB / 1.362 GB, free: 1.449 MB / 1.029 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004793/1.128, allocations: 3.697 MB / 1.365 GB, free: 13.76 MB / 1.045 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.053e-06/1.128, allocations: 0 / 1.365 GB, free: 13.76 MB / 1.045 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003533/1.132, allocations: 0.7425 MB / 1.366 GB, free: 13.04 MB / 1.045 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0007156/1.132, allocations: 271.5 kB / 1.366 GB, free: 12.77 MB / 1.045 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002342/1.132, allocations: 83.92 kB / 1.366 GB, free: 12.68 MB / 1.045 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004872/1.137, allocations: 5.238 MB / 1.371 GB, free: 7.168 MB / 1.045 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.306e-06/1.137, allocations: 4.031 kB / 1.371 GB, free: 7.164 MB / 1.045 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01624/1.154, allocations: 8.026 MB / 1.379 GB, free: 15.06 MB / 1.061 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00146/1.155, allocations: 0.8288 MB / 1.38 GB, free: 14.21 MB / 1.061 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004577/1.156, allocations: 71.83 kB / 1.38 GB, free: 14.14 MB / 1.061 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00291/1.158, allocations: 421.3 kB / 1.38 GB, free: 13.73 MB / 1.061 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004099/1.159, allocations: 202 kB / 1.381 GB, free: 13.53 MB / 1.061 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002535/1.159, allocations: 103.9 kB / 1.381 GB, free: 13.43 MB / 1.061 GB Notification: Performance of sorting global known variables: time 0.002262/1.161, allocations: 1.785 MB / 1.383 GB, free: 11.63 MB / 1.061 GB Notification: Performance of sort global known variables: time 2.01e-07/1.161, allocations: 0 / 1.383 GB, free: 11.63 MB / 1.061 GB Notification: Performance of remove unused functions: time 0.002481/1.164, allocations: 1.052 MB / 1.384 GB, free: 10.57 MB / 1.061 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 3 (thermalZoneOneElement.volAir.dynBal.U,thermalZoneOneElement.volAir.dynBal.m,thermalZoneOneElement.extWallRC.thermCapExt[1].T) * Number of discrete variables: 21 ($whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,HDifTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,HDirTil[2].incAng.decAng.tNext,intGai.nextTimeEvent,intGai.nextTimeEventScaled) * Number of discrete states: 11 (intGai.nextTimeEventScaled,intGai.nextTimeEvent,HDirTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,weaDat.decAng.tNext,weaDat.eqnTim.tNext,weaDat.conTim.tNext,weaDat.conTimMin.tNext,weaDat.locTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (276): * Single equations (assignments): 262 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 11 * 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 {(2,16,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.01976/1.184, allocations: 9.55 MB / 1.393 GB, free: 1.355 MB / 1.061 GB Notification: Performance of simCode: created initialization part: time 0.01884/1.203, allocations: 8.503 MB / 1.401 GB, free: 8.867 MB / 1.076 GB Notification: Performance of simCode: created event and clocks part: time 3.987e-06/1.203, allocations: 3.094 kB / 1.401 GB, free: 8.867 MB / 1.076 GB Notification: Performance of simCode: created simulation system equations: time 0.005479/1.208, allocations: 2.783 MB / 1.404 GB, free: 6.109 MB / 1.076 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002892/1.211, allocations: 0.7045 MB / 1.405 GB, free: 5.441 MB / 1.076 GB Warning: The hideResult annotation could not be evaluated, probably due to missing annotation(Evaluate=true). It is removed. Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0524/1.263, allocations: 32.27 MB / 1.436 GB, free: 3.602 MB / 1.107 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0021/1.265, allocations: 2.456 MB / 1.438 GB, free: 1.117 MB / 1.107 GB Notification: Performance of simCode: alias equations: time 0.003882/1.269, allocations: 1.141 MB / 1.44 GB, free: 15.97 MB / 1.123 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002201/1.272, allocations: 1.436 MB / 1.441 GB, free: 14.54 MB / 1.123 GB Notification: Performance of SimCode: time 4.51e-07/1.272, allocations: 4 kB / 1.441 GB, free: 14.53 MB / 1.123 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.6513/1.923, allocations: 70.83 MB / 1.51 GB, free: 8.445 MB / 1.186 GB Notification: Performance of buildModelFMU: Generate platform static: time 19.41/21.33, allocations: 2.656 kB / 1.51 GB, free: 8.445 MB / 1.186 GB (rm -f Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe ; mkfifo Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe ; head -c 1048576 < Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe >> ../files/Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement_res.mat --tempDir=temp_Buildings_11_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomOneElement_fmu --startTime=0 --stopTime=3.1536e+07 --timeout=400 --tolerance=1e-06 Buildings_11_Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomOneElement.fmu > Buildings_11_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe 2>&1)