Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_4.0.0_Modelica.Fluid.Examples.Explanatory.MeasuringTemperature.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) 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(Modelica.Fluid.Examples.Explanatory.MeasuringTemperature,fileNamePrefix="Modelica_4_0_0_Modelica_Fluid_Examples_Explanatory_MeasuringTemperature",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Modelica.Fluid.Examples.Explanatory.MeasuringTemperature,fileNamePrefix="Modelica_4_0_0_Modelica_Fluid_Examples_Explanatory_MeasuringTemperature",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 0.001361/0.00136, allocations: 107.1 kB / 16.92 MB, free: 5.777 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001272/0.001272, allocations: 191.3 kB / 17.85 MB, free: 5.164 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 2.289/2.289, allocations: 222.9 MB / 241.5 MB, free: 15.2 MB / 206.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001971/0.001971, allocations: 47.41 kB / 300.7 MB, free: 5.773 MB / 238.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1783/0.1803, allocations: 49.44 MB / 350.2 MB, free: 4.324 MB / 286.1 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.Explanatory.MeasuringTemperature): time 0.5217/0.7021, allocations: 93.96 MB / 444.1 MB, free: 6.504 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.05082/0.753, allocations: 34.34 MB / 478.5 MB, free: 4.051 MB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.004525/0.7576, allocations: 55.69 kB / 478.5 MB, free: 3.996 MB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.005473/0.7631, allocations: 1.324 MB / 479.8 MB, free: 2.664 MB / 382.1 MB Notification: Performance of NFTyping.typeBindings: time 0.02584/0.789, allocations: 4.512 MB / 484.3 MB, free: 14.14 MB / 398.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.04394/0.833, allocations: 8.709 MB / 493.1 MB, free: 5.445 MB / 398.1 MB Notification: Performance of NFFlatten.flatten: time 0.01306/0.8461, allocations: 6.191 MB / 499.2 MB, free: 15.24 MB / 414.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.005289/0.8514, allocations: 2.007 MB / 0.4895 GB, free: 13.22 MB / 414.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0208/0.8723, allocations: 5.761 MB / 0.4951 GB, free: 7.398 MB / 414.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.007936/0.8803, allocations: 2.133 MB / 0.4972 GB, free: 5.258 MB / 414.1 MB Notification: Performance of NFPackage.collectConstants: time 0.002465/0.8828, allocations: 263.9 kB / 0.4975 GB, free: 5 MB / 414.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.04028/0.9232, allocations: 8.975 MB / 0.5062 GB, free: 12.02 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.003325/0.9266, allocations: 0.8687 MB / 0.5071 GB, free: 11.14 MB / 430.1 MB Notification: Performance of NFVerifyModel.verify: time 0.005148/0.9318, allocations: 1.361 MB / 0.5084 GB, free: 9.777 MB / 430.1 MB Notification: Performance of NFConvertDAE.convert: time 0.03182/0.9636, allocations: 8.629 MB / 0.5168 GB, free: 1.129 MB / 430.1 MB Notification: Performance of FrontEnd - DAE generated: time 1.559e-05/0.9637, allocations: 3.984 kB / 0.5168 GB, free: 1.125 MB / 430.1 MB Notification: Performance of FrontEnd: time 3.016e-06/0.9638, allocations: 0 / 0.5168 GB, free: 1.125 MB / 430.1 MB Notification: Performance of Transformations before backend: time 0.0001803/0.964, allocations: 0 / 0.5168 GB, free: 1.125 MB / 430.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 462 * Number of variables: 462 Notification: Performance of Generate backend data structure: time 0.01865/0.9826, allocations: 3.43 MB / 0.5202 GB, free: 13.64 MB / 446.1 MB Notification: Performance of prepare preOptimizeDAE: time 7.148e-05/0.9827, allocations: 12.03 kB / 0.5202 GB, free: 13.62 MB / 446.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001555/0.9843, allocations: 277.8 kB / 0.5205 GB, free: 13.34 MB / 446.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02218/1.006, allocations: 1.204 MB / 0.5216 GB, free: 12.14 MB / 446.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006031/1.013, allocations: 1.338 MB / 0.5229 GB, free: 10.74 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006972/1.013, allocations: 342.5 kB / 0.5233 GB, free: 10.37 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001281/1.015, allocations: 199.8 kB / 0.5235 GB, free: 10.18 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02034/1.035, allocations: 3.43 MB / 0.5268 GB, free: 6.629 MB / 446.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001899/1.035, allocations: 7.938 kB / 0.5268 GB, free: 6.621 MB / 446.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001474/1.037, allocations: 83.97 kB / 0.5269 GB, free: 6.539 MB / 446.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000372/1.037, allocations: 107.3 kB / 0.527 GB, free: 6.434 MB / 446.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01714/1.054, allocations: 3.412 MB / 0.5303 GB, free: 3.016 MB / 446.1 MB 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 0.3654/1.42, allocations: 14.38 MB / 0.5444 GB, free: 147.1 MB / 446.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.01161/1.432, allocations: 2.814 MB / 0.5471 GB, free: 146.2 MB / 446.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.004654/1.436, allocations: 1.423 MB / 0.5485 GB, free: 145.7 MB / 446.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.08071/1.517, allocations: 24.29 MB / 0.5722 GB, free: 127.7 MB / 446.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 9.613e-05/1.517, allocations: 56.5 kB / 0.5723 GB, free: 127.6 MB / 446.1 MB Notification: Performance of preOpt simplifyInStream (simulation): time 0.003296/1.521, allocations: 325 kB / 0.5726 GB, free: 127.4 MB / 446.1 MB Notification: Performance of pre-optimization done (n=175): time 1.4e-05/1.521, allocations: 3.938 kB / 0.5726 GB, free: 127.4 MB / 446.1 MB Notification: Performance of matching and sorting (n=205): time 0.06531/1.586, allocations: 11.99 MB / 0.5843 GB, free: 118.4 MB / 446.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 6.899e-05/1.586, allocations: 154.5 kB / 0.5845 GB, free: 118.2 MB / 446.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003295/1.589, allocations: 1.408 MB / 0.5858 GB, free: 116.8 MB / 446.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0007311/1.59, allocations: 69.7 kB / 0.5859 GB, free: 116.7 MB / 446.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0007213/1.591, allocations: 0.7928 MB / 0.5867 GB, free: 115.9 MB / 446.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.001157/1.592, allocations: 0.6724 MB / 0.5873 GB, free: 115.3 MB / 446.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001801/1.594, allocations: 443.7 kB / 0.5878 GB, free: 114.8 MB / 446.1 MB Notification: Performance of setup shared object (initialization): time 7.396e-05/1.594, allocations: 305.1 kB / 0.588 GB, free: 114.5 MB / 446.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004432/1.598, allocations: 1.265 MB / 0.5893 GB, free: 113.3 MB / 446.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004739/1.603, allocations: 1.709 MB / 0.5909 GB, free: 111.4 MB / 446.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.009223/1.612, allocations: 2.919 MB / 0.5938 GB, free: 108.3 MB / 446.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.366e-05/1.612, allocations: 6.531 kB / 0.5938 GB, free: 108.3 MB / 446.1 MB Notification: Performance of matching and sorting (n=272) (initialization): time 0.01446/1.627, allocations: 3.938 MB / 0.5976 GB, free: 104.3 MB / 446.1 MB Notification: Performance of prepare postOptimizeDAE: time 5.68e-05/1.627, allocations: 8 kB / 0.5977 GB, free: 104.3 MB / 446.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.597e-05/1.627, allocations: 16.84 kB / 0.5977 GB, free: 104.3 MB / 446.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.007494/1.635, allocations: 1.58 MB / 0.5992 GB, free: 102.7 MB / 446.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003721/1.638, allocations: 455.3 kB / 0.5996 GB, free: 102.3 MB / 446.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.008891/1.647, allocations: 6.695 MB / 0.6062 GB, free: 95.36 MB / 446.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004144/1.652, allocations: 127.9 kB / 0.6063 GB, free: 95.23 MB / 446.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009596/1.653, allocations: 111.9 kB / 0.6064 GB, free: 95.12 MB / 446.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 50 * Number of states: 0 () * Number of discrete variables: 21 (mFlow3.medium.phase,openTankHot3.inFlow[1],openTankHot3.regularFlow[1],openTankHot3.heatTransfer.states[1].phase,openTankCold3.inFlow[1],openTankCold3.regularFlow[1],openTankCold3.heatTransfer.states[1].phase,mFlow2.medium.phase,mFlow1.medium.phase,openTankHot2.inFlow[1],openTankHot2.regularFlow[1],openTankHot2.heatTransfer.states[1].phase,openTankHot1.inFlow[1],openTankHot1.regularFlow[1],openTankHot1.heatTransfer.states[1].phase,openTankCold1.inFlow[1],openTankCold1.regularFlow[1],openTankCold1.heatTransfer.states[1].phase,openTankCold2.inFlow[1],openTankCold2.regularFlow[1],openTankCold2.heatTransfer.states[1].phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (213): * Single equations (assignments): 204 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 9 * 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): 9 systems {(1,5), (1,5), (4,6), (1,5), (1,5), (4,6), (1,5), (1,5), (6,6)} Notification: Performance of prepare postOptimizeDAE: time 0.002931/1.655, allocations: 0.5095 MB / 0.6069 GB, free: 94.6 MB / 446.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001334/1.657, allocations: 197.7 kB / 0.6071 GB, free: 94.41 MB / 446.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01565/1.673, allocations: 9.854 MB / 0.6167 GB, free: 84.44 MB / 446.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.8e-05/1.673, allocations: 107.8 kB / 0.6168 GB, free: 84.34 MB / 446.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.495e-05/1.673, allocations: 0 / 0.6168 GB, free: 84.34 MB / 446.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.336e-05/1.673, allocations: 11.95 kB / 0.6168 GB, free: 84.32 MB / 446.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01683/1.69, allocations: 13.24 MB / 0.6298 GB, free: 70.98 MB / 446.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.352e-05/1.69, allocations: 0 / 0.6298 GB, free: 70.98 MB / 446.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001935/1.692, allocations: 371.5 kB / 0.6301 GB, free: 70.62 MB / 446.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.004981/1.697, allocations: 2.951 MB / 0.633 GB, free: 67.66 MB / 446.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004491/1.697, allocations: 63.91 kB / 0.6331 GB, free: 67.59 MB / 446.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00691/1.704, allocations: 8.762 MB / 0.6416 GB, free: 58.6 MB / 446.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.168e-06/1.704, allocations: 0 / 0.6416 GB, free: 58.6 MB / 446.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01537/1.719, allocations: 10.7 MB / 0.6521 GB, free: 47.78 MB / 446.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.003511/1.723, allocations: 0.699 MB / 0.6527 GB, free: 47.05 MB / 446.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001296/1.724, allocations: 103.1 kB / 0.6528 GB, free: 46.95 MB / 446.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003468/1.728, allocations: 155.8 kB / 0.653 GB, free: 46.8 MB / 446.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000753/1.729, allocations: 217.7 kB / 0.6532 GB, free: 46.59 MB / 446.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003224/1.729, allocations: 91.94 kB / 0.6533 GB, free: 46.5 MB / 446.1 MB Notification: Performance of sorting global known variables: time 0.002693/1.732, allocations: 1.27 MB / 0.6545 GB, free: 45.21 MB / 446.1 MB Notification: Performance of sort global known variables: time 1.9e-07/1.732, allocations: 0 / 0.6545 GB, free: 45.21 MB / 446.1 MB Notification: Performance of remove unused functions: time 0.009692/1.741, allocations: 1.792 MB / 0.6563 GB, free: 43.54 MB / 446.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 12 (openTankCold2.level,openTankCold2.medium.h,openTankCold1.level,openTankCold1.medium.h,openTankHot1.level,openTankHot1.medium.h,openTankHot2.level,openTankHot2.medium.h,openTankCold3.level,openTankCold3.medium.h,openTankHot3.level,openTankHot3.medium.h) * Number of discrete variables: 71 ($cse4.phase,$cse4.region,$cse7.phase,$cse7.region,$cse8.phase,$cse8.region,$cse13.phase,$cse13.region,$cse15.phase,$cse15.region,$cse18.phase,$cse18.region,$cse20.phase,$cse20.region,$cse23.phase,$cse23.region,$cse25.phase,$cse25.region,$cse28.phase,$cse28.region,$cse30.phase,$cse30.region,$cse31.region3boundary,$cse32.region3boundary,$cse33.phase,$cse33.region,$cse34.phase,$cse34.region,$cse35.region3boundary,$cse36.region3boundary,$cse37.phase,$cse37.region,$cse38.phase,$cse38.region,$cse39.phase,$cse39.region,$cse43.phase,$cse43.region,$cse45.phase,$cse45.region,$cse48.phase,$cse48.region,$cse50.phase,$cse50.region,$cse51.region3boundary,$cse52.region3boundary,$cse53.phase,$cse53.region,$cse54.phase,$cse54.region,openTankCold2.heatTransfer.states[1].phase,openTankCold2.regularFlow[1],openTankCold2.inFlow[1],openTankCold1.heatTransfer.states[1].phase,openTankCold1.regularFlow[1],openTankCold1.inFlow[1],openTankHot1.heatTransfer.states[1].phase,openTankHot1.regularFlow[1],openTankHot1.inFlow[1],openTankHot2.heatTransfer.states[1].phase,openTankHot2.regularFlow[1],openTankHot2.inFlow[1],mFlow1.medium.phase,mFlow2.medium.phase,openTankCold3.heatTransfer.states[1].phase,openTankCold3.regularFlow[1],openTankCold3.inFlow[1],openTankHot3.heatTransfer.states[1].phase,openTankHot3.regularFlow[1],openTankHot3.inFlow[1],mFlow3.medium.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (173): * Single equations (assignments): 145 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 19 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 9 * 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): 9 systems {(2,4), (2,4), (4,11), (2,4), (2,4), (4,11), (2,4), (2,4), (6,11)} Notification: Performance of Backend phase and start with SimCode phase: time 0.03637/1.778, allocations: 11.78 MB / 0.6678 GB, free: 31.91 MB / 446.1 MB Notification: Performance of simCode: created initialization part: time 0.03049/1.808, allocations: 5.268 MB / 0.6729 GB, free: 26.65 MB / 446.1 MB Notification: Performance of simCode: created event and clocks part: time 1.451e-05/1.808, allocations: 4.688 kB / 0.6729 GB, free: 26.65 MB / 446.1 MB Notification: Performance of simCode: created simulation system equations: time 0.01092/1.819, allocations: 3.122 MB / 0.676 GB, free: 23.53 MB / 446.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01104/1.83, allocations: 1.105 MB / 0.6771 GB, free: 22.46 MB / 446.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.4124/2.243, allocations: 27.98 MB / 0.7044 GB, free: 144.8 MB / 446.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003965/2.247, allocations: 2.165 MB / 0.7065 GB, free: 144 MB / 446.1 MB Notification: Performance of simCode: alias equations: time 0.007609/2.255, allocations: 1.738 MB / 0.7082 GB, free: 144 MB / 446.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003319/2.258, allocations: 1.341 MB / 0.7095 GB, free: 142.9 MB / 446.1 MB Notification: Performance of SimCode: time 2.094e-06/2.258, allocations: 0 / 0.7095 GB, free: 142.9 MB / 446.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.2373/2.495, allocations: 123.5 MB / 0.8302 GB, free: 35.23 MB / 446.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 25.77/28.26, allocations: 3.984 kB / 0.8302 GB, free: 35.23 MB / 446.1 MB (rm -f Modelica_4.0.0_Modelica.Fluid.Examples.Explanatory.MeasuringTemperature.pipe ; mkfifo Modelica_4.0.0_Modelica.Fluid.Examples.Explanatory.MeasuringTemperature.pipe ; head -c 1048576 < Modelica_4.0.0_Modelica.Fluid.Examples.Explanatory.MeasuringTemperature.pipe >> ../files/Modelica_4.0.0_Modelica.Fluid.Examples.Explanatory.MeasuringTemperature.sim & python3 -m fmpy simulate --output-file Modelica_4.0.0_Modelica.Fluid.Examples.Explanatory.MeasuringTemperature_res.csv --start-time 0 --stop-time 1.1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.00044 Modelica_4_0_0_Modelica_Fluid_Examples_Explanatory_MeasuringTemperature.fmu > Modelica_4.0.0_Modelica.Fluid.Examples.Explanatory.MeasuringTemperature.pipe 2>&1)