Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Boilers.Examples.BoilerPolynomial.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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.Fluid.Boilers.Examples.BoilerPolynomial,fileNamePrefix="Buildings_8_Buildings_Fluid_Boilers_Examples_BoilerPolynomial",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Boilers.Examples.BoilerPolynomial,fileNamePrefix="Buildings_8_Buildings_Fluid_Boilers_Examples_BoilerPolynomial",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 0.000982/0.000982, allocations: 90.36 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0078/0.0078, allocations: 172 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.364/1.364, allocations: 205.4 MB / 222.4 MB, free: 5.789 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.609/1.609, allocations: 292.7 MB / 0.5503 GB, free: 14.46 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0005633/0.0005633, allocations: 21.84 kB / 0.6744 GB, free: 26.11 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.233/0.2335, allocations: 116.3 MB / 0.788 GB, free: 11.52 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Boilers.Examples.BoilerPolynomial): time 0.05202/0.2856, allocations: 55.8 MB / 0.8425 GB, free: 3.512 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.01476/0.3004, allocations: 10.34 MB / 0.8526 GB, free: 9.148 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001826/0.3023, allocations: 51.69 kB / 0.8526 GB, free: 9.098 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.001615/0.3039, allocations: 0.5595 MB / 0.8532 GB, free: 8.535 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.004396/0.3083, allocations: 1.789 MB / 0.8549 GB, free: 6.738 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.002935/0.3113, allocations: 1.203 MB / 0.8561 GB, free: 5.551 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.004741/0.316, allocations: 4.664 MB / 0.8607 GB, free: 0.8711 MB / 0.67 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001339/0.3174, allocations: 0.997 MB / 0.8616 GB, free: 15.84 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001811/0.3192, allocations: 1.081 MB / 0.8627 GB, free: 14.75 MB / 0.6856 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00116/0.3204, allocations: 0.9915 MB / 0.8636 GB, free: 13.75 MB / 0.6856 GB Notification: Performance of NFPackage.collectConstants: time 0.0001142/0.3205, allocations: 48 kB / 0.8637 GB, free: 13.71 MB / 0.6856 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002228/0.3227, allocations: 1.127 MB / 0.8648 GB, free: 12.58 MB / 0.6856 GB Notification: Performance of NFScalarize.scalarize: time 0.0002663/0.323, allocations: 266.7 kB / 0.865 GB, free: 12.32 MB / 0.6856 GB Notification: Performance of NFVerifyModel.verify: time 0.0006734/0.3237, allocations: 0.7011 MB / 0.8657 GB, free: 11.61 MB / 0.6856 GB Notification: Performance of NFConvertDAE.convert: time 0.002549/0.3262, allocations: 2.289 MB / 0.868 GB, free: 9.309 MB / 0.6856 GB Notification: Performance of FrontEnd - DAE generated: time 3.656e-06/0.3262, allocations: 0 / 0.868 GB, free: 9.309 MB / 0.6856 GB Notification: Performance of FrontEnd: time 1.543e-06/0.3263, allocations: 0 / 0.868 GB, free: 9.309 MB / 0.6856 GB Notification: Performance of Transformations before backend: time 1.456e-05/0.3263, allocations: 4 kB / 0.868 GB, free: 9.305 MB / 0.6856 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 221 * Number of variables: 221 Notification: Performance of Generate backend data structure: time 0.002542/0.3288, allocations: 1.59 MB / 0.8695 GB, free: 7.645 MB / 0.6856 GB Notification: Performance of prepare preOptimizeDAE: time 4.442e-05/0.3289, allocations: 19.97 kB / 0.8695 GB, free: 7.625 MB / 0.6856 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001596/0.329, allocations: 139.6 kB / 0.8697 GB, free: 7.48 MB / 0.6856 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003459/0.3294, allocations: 167.1 kB / 0.8698 GB, free: 7.316 MB / 0.6856 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00163/0.331, allocations: 1.17 MB / 0.871 GB, free: 6.09 MB / 0.6856 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.928e-05/0.3311, allocations: 66 kB / 0.871 GB, free: 6.023 MB / 0.6856 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001345/0.3313, allocations: 96 kB / 0.8711 GB, free: 5.93 MB / 0.6856 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001492/0.3328, allocations: 0.9527 MB / 0.8721 GB, free: 4.941 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.689e-05/0.3328, allocations: 7.938 kB / 0.8721 GB, free: 4.934 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.034e-05/0.3329, allocations: 39.98 kB / 0.8721 GB, free: 4.895 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.178e-05/0.3329, allocations: 28 kB / 0.8721 GB, free: 4.867 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0011/0.334, allocations: 0.6675 MB / 0.8728 GB, free: 4.199 MB / 0.6856 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 0.00492/0.339, allocations: 4.073 MB / 0.8768 GB, free: 15.92 MB / 0.7012 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006198/0.3396, allocations: 388.6 kB / 0.8771 GB, free: 15.53 MB / 0.7012 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003709/0.34, allocations: 262.5 kB / 0.8774 GB, free: 15.27 MB / 0.7012 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003985/0.3404, allocations: 0.4991 MB / 0.8779 GB, free: 14.66 MB / 0.7012 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005134/0.3409, allocations: 354 kB / 0.8782 GB, free: 14.29 MB / 0.7012 GB Notification: Performance of pre-optimization done (n=52): time 2.315e-06/0.3409, allocations: 3.938 kB / 0.8782 GB, free: 14.28 MB / 0.7012 GB Notification: Performance of matching and sorting (n=54): time 0.003757/0.3447, allocations: 1.942 MB / 0.8801 GB, free: 12.25 MB / 0.7012 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.289e-05/0.3448, allocations: 137 kB / 0.8802 GB, free: 12.08 MB / 0.7012 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001349/0.3461, allocations: 1.097 MB / 0.8813 GB, free: 10.97 MB / 0.7012 GB Notification: Performance of collectPreVariables (initialization): time 5.688e-05/0.3462, allocations: 37.7 kB / 0.8814 GB, free: 10.93 MB / 0.7012 GB Notification: Performance of collectInitialEqns (initialization): time 0.00049/0.3467, allocations: 0.578 MB / 0.8819 GB, free: 10.34 MB / 0.7012 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001617/0.3469, allocations: 181.4 kB / 0.8821 GB, free: 10.16 MB / 0.7012 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.611e-05/0.347, allocations: 65.69 kB / 0.8822 GB, free: 10.09 MB / 0.7012 GB Notification: Performance of setup shared object (initialization): time 0.0001282/0.3471, allocations: 333.9 kB / 0.8825 GB, free: 9.762 MB / 0.7012 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003636/0.3475, allocations: 217.9 kB / 0.8827 GB, free: 9.551 MB / 0.7012 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005437/0.348, allocations: 445.8 kB / 0.8831 GB, free: 9.035 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000862/0.3489, allocations: 0.6547 MB / 0.8837 GB, free: 8.309 MB / 0.7012 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.375e-06/0.3489, allocations: 0 / 0.8837 GB, free: 8.309 MB / 0.7012 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.001431/0.3504, allocations: 0.8913 MB / 0.8846 GB, free: 7.395 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 0.000222/0.3506, allocations: 249.3 kB / 0.8848 GB, free: 7.086 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.024e-05/0.3506, allocations: 4 kB / 0.8849 GB, free: 7.082 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003536/0.351, allocations: 113.6 kB / 0.885 GB, free: 6.965 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004211/0.3514, allocations: 119.8 kB / 0.8851 GB, free: 6.848 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001733/0.3531, allocations: 2.176 MB / 0.8872 GB, free: 4.512 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008906/0.354, allocations: 95.94 kB / 0.8873 GB, free: 4.418 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.218e-05/0.3541, allocations: 39.98 kB / 0.8873 GB, free: 4.379 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 6.803e-06/0.3541, allocations: 4 kB / 0.8873 GB, free: 4.375 MB / 0.7012 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001227/0.3554, allocations: 0.7777 MB / 0.8881 GB, free: 3.582 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.522e-06/0.3554, allocations: 4 kB / 0.8881 GB, free: 3.578 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002684/0.3557, allocations: 105.6 kB / 0.8882 GB, free: 3.469 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000415/0.3561, allocations: 119.8 kB / 0.8883 GB, free: 3.352 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001589/0.3577, allocations: 2.172 MB / 0.8904 GB, free: 1.02 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008082/0.3585, allocations: 91.77 kB / 0.8905 GB, free: 0.9297 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.217e-05/0.3586, allocations: 31.98 kB / 0.8906 GB, free: 0.8984 MB / 0.7012 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 19 * Number of states: 0 () * Number of discrete variables: 7 (y.nextEventScaled,y.nextEvent,$PRE.y.nextEvent,y.last,y.b,y.a,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (73): * Single equations (assignments): 70 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,4,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,6)} Notification: Performance of prepare postOptimizeDAE: time 0.000588/0.3592, allocations: 433 kB / 0.891 GB, free: 472 kB / 0.7012 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001397/0.3593, allocations: 118.6 kB / 0.8911 GB, free: 352 kB / 0.7012 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001318/0.3606, allocations: 0.8076 MB / 0.8919 GB, free: 15.51 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.396e-06/0.3607, allocations: 4 kB / 0.8919 GB, free: 15.51 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.966e-06/0.3607, allocations: 4 kB / 0.8919 GB, free: 15.5 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0009537/0.3616, allocations: 0.6995 MB / 0.8926 GB, free: 14.76 MB / 0.7169 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002522/0.3642, allocations: 1.809 MB / 0.8943 GB, free: 12.88 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.001e-06/0.3642, allocations: 4.125 kB / 0.8943 GB, free: 12.87 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003694/0.3646, allocations: 75.89 kB / 0.8944 GB, free: 12.8 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002973/0.3649, allocations: 109.7 kB / 0.8945 GB, free: 12.68 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.995e-05/0.3649, allocations: 20.08 kB / 0.8945 GB, free: 12.66 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001666/0.3666, allocations: 2.172 MB / 0.8966 GB, free: 10.33 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.346e-06/0.3666, allocations: 4.031 kB / 0.8966 GB, free: 10.33 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001578/0.3682, allocations: 1.12 MB / 0.8977 GB, free: 9.164 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004469/0.3686, allocations: 279.4 kB / 0.898 GB, free: 8.871 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001544/0.3688, allocations: 15.94 kB / 0.898 GB, free: 8.855 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007846/0.3696, allocations: 63.98 kB / 0.8981 GB, free: 8.793 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.411e-05/0.3697, allocations: 39.89 kB / 0.8981 GB, free: 8.754 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.167e-05/0.3698, allocations: 27.92 kB / 0.8982 GB, free: 8.727 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.001106/0.3709, allocations: 0.8168 MB / 0.8989 GB, free: 7.906 MB / 0.7169 GB Notification: Performance of sort global known variables: time 1.683e-06/0.3709, allocations: 0 / 0.8989 GB, free: 7.906 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.001789/0.3727, allocations: 0.5935 MB / 0.8995 GB, free: 7.312 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 1 (boi1.heaCapDry.T) * Number of discrete variables: 6 ($whenCondition1,y.a,y.b,y.last,y.nextEvent,y.nextEventScaled) * Number of discrete states: 6 (y.nextEvent,y.last,y.nextEventScaled,y.b,y.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (39): * Single equations (assignments): 34 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,4,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002626/0.3753, allocations: 1.949 MB / 0.9014 GB, free: 5.312 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.002086/0.3774, allocations: 1.36 MB / 0.9028 GB, free: 3.902 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 5.721e-06/0.3774, allocations: 3.906 kB / 0.9028 GB, free: 3.898 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.0006017/0.378, allocations: 475.5 kB / 0.9032 GB, free: 3.41 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003614/0.3817, allocations: 0.7149 MB / 0.9039 GB, free: 2.707 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01428/0.396, allocations: 9.925 MB / 0.9136 GB, free: 8.312 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006932/0.3967, allocations: 1.125 MB / 0.9147 GB, free: 7.16 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.001045/0.3977, allocations: 238.3 kB / 0.9149 GB, free: 6.922 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005582/0.3983, allocations: 467.3 kB / 0.9154 GB, free: 6.465 MB / 0.7325 GB Notification: Performance of SimCode: time 1.252e-06/0.3983, allocations: 0 / 0.9154 GB, free: 6.465 MB / 0.7325 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.135/1.534, allocations: 36.94 MB / 0.9514 GB, free: 121.2 MB / 0.7325 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001884/1.534, allocations: 269.4 kB / 0.9517 GB, free: 120.8 MB / 0.7325 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.574/4.108, allocations: 4 kB / 0.9517 GB, free: 120.8 MB / 0.7325 GB (rm -f Buildings_8_Buildings.Fluid.Boilers.Examples.BoilerPolynomial.pipe ; mkfifo Buildings_8_Buildings.Fluid.Boilers.Examples.BoilerPolynomial.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Boilers.Examples.BoilerPolynomial.pipe >> ../files/Buildings_8_Buildings.Fluid.Boilers.Examples.BoilerPolynomial.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Fluid_Boilers_Examples_BoilerPolynomial_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Fluid_Boilers_Examples_BoilerPolynomial.fmu > Buildings_8_Buildings.Fluid.Boilers.Examples.BoilerPolynomial.pipe 2>&1)