Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo", uses=false) 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 3.0.0/package.mo", uses=false) Using package Buildings with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/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) Using package Modelica_StateGraph2 with version 2.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo) Running command: translateModel(Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL") translateModel(Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL") [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:257:38-257:110:writable] Warning: The file was not encoded in UTF-8: "

An important practical aspect of state machines is the abilit...". Defaulting to 7-bit ASCII with unknown characters replaced by '?'. To change encoding when loading a file: loadFile(encoding="ISO-XXXX-YY"). To change it in a package: add a file package.encoding at the top-level. Note: The Modelica Language Specification only allows files encoded in UTF-8. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:761:36-761:108:writable] Warning: The file was not encoded in UTF-8: "

The Modelica_StateGraph2 library is described in detail in (O...". Defaulting to 7-bit ASCII with unknown characters replaced by '?'. To change encoding when loading a file: loadFile(encoding="ISO-XXXX-YY"). To change it in a package: add a file package.encoding at the top-level. Note: The Modelica Language Specification only allows files encoded in UTF-8. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:1435:36-1435:108:writable] Warning: The file was not encoded in UTF-8: "

Main Authors:

SCode: time 0.2004/0.2026, allocations: 80.83 MB / 0.6706 GB, free: 2.027 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL): time 0.08661/0.2892, allocations: 74.02 MB / 0.7429 GB, free: 7.75 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.5248/0.8141, allocations: 11.27 MB / 0.7539 GB, free: 25.63 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005021/0.8193, allocations: 62.84 kB / 0.754 GB, free: 25.63 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.004823/0.8242, allocations: 0.8859 MB / 0.7549 GB, free: 25.63 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.01215/0.8364, allocations: 2.41 MB / 0.7572 GB, free: 25.57 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.006284/0.8427, allocations: 1.348 MB / 0.7585 GB, free: 25.54 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.01257/0.8553, allocations: 4.373 MB / 0.7628 GB, free: 25.54 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004073/0.8594, allocations: 1.427 MB / 0.7642 GB, free: 25.39 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.007058/0.8665, allocations: 1.733 MB / 0.7659 GB, free: 25.29 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004086/0.8706, allocations: 1.264 MB / 0.7671 GB, free: 25.07 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0005619/0.8712, allocations: 170.8 kB / 0.7673 GB, free: 25.07 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004955/0.8762, allocations: 1.304 MB / 0.7686 GB, free: 25.05 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0006094/0.8768, allocations: 421.3 kB / 0.769 GB, free: 24.99 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.001917/0.8787, allocations: 0.942 MB / 0.7699 GB, free: 24.75 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.006249/0.885, allocations: 2.889 MB / 0.7727 GB, free: 24.4 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 7.584e-06/0.885, allocations: 0 / 0.7727 GB, free: 24.4 MB / 0.5762 GB Notification: Performance of FrontEnd: time 1.763e-06/0.885, allocations: 0 / 0.7727 GB, free: 24.4 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 5.599e-05/0.8851, allocations: 0 / 0.7727 GB, free: 24.4 MB / 0.5762 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 268 * Number of variables: 268 Notification: Performance of Generate backend data structure: time 0.00514/0.8903, allocations: 2.104 MB / 0.7748 GB, free: 23.34 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 6.083e-05/0.8903, allocations: 13.09 kB / 0.7748 GB, free: 23.34 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001326/0.8917, allocations: 252.8 kB / 0.775 GB, free: 23.25 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002771/0.8944, allocations: 1.457 MB / 0.7764 GB, free: 22.84 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001017/0.8946, allocations: 85.39 kB / 0.7765 GB, free: 22.84 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000183/0.8948, allocations: 107.7 kB / 0.7766 GB, free: 22.84 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002958/0.8977, allocations: 1.4 MB / 0.778 GB, free: 22.5 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.337e-05/0.8978, allocations: 7.844 kB / 0.778 GB, free: 22.49 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001063/0.8979, allocations: 45.33 kB / 0.778 GB, free: 22.49 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.416e-05/0.8979, allocations: 36.42 kB / 0.7781 GB, free: 22.49 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002637/0.9006, allocations: 1.079 MB / 0.7791 GB, free: 22.48 MB / 0.5762 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 0.008481/0.9091, allocations: 6.655 MB / 0.7856 GB, free: 17.3 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002123/0.9112, allocations: 0.6395 MB / 0.7862 GB, free: 17.08 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007681/0.912, allocations: 355.3 kB / 0.7866 GB, free: 16.95 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002169/0.9123, allocations: 184.8 kB / 0.7868 GB, free: 16.76 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.497e-05/0.9123, allocations: 39.92 kB / 0.7868 GB, free: 16.72 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=64): time 3.366e-06/0.9123, allocations: 0 / 0.7868 GB, free: 16.72 MB / 0.5762 GB Notification: Performance of matching and sorting (n=68): time 0.007667/0.92, allocations: 2.555 MB / 0.7893 GB, free: 15.46 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.042e-05/0.9201, allocations: 164.4 kB / 0.7894 GB, free: 15.27 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001851/0.9219, allocations: 1.255 MB / 0.7907 GB, free: 14.76 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.0001082/0.9221, allocations: 43.89 kB / 0.7907 GB, free: 14.71 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004351/0.9225, allocations: 0.6538 MB / 0.7914 GB, free: 14.2 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002102/0.9227, allocations: 237.8 kB / 0.7916 GB, free: 14.02 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003095/0.923, allocations: 190 kB / 0.7918 GB, free: 13.93 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 7.993e-05/0.9231, allocations: 340.2 kB / 0.7921 GB, free: 13.61 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008199/0.9239, allocations: 358.9 kB / 0.7924 GB, free: 13.43 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001022/0.925, allocations: 0.6742 MB / 0.7931 GB, free: 12.84 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001731/0.9267, allocations: 0.9328 MB / 0.794 GB, free: 12.19 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.97e-06/0.9267, allocations: 2.562 kB / 0.794 GB, free: 12.19 MB / 0.5762 GB Notification: Performance of matching and sorting (n=110) (initialization): time 0.002907/0.9296, allocations: 1.139 MB / 0.7951 GB, free: 11.62 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 2.988e-05/0.9297, allocations: 9.719 kB / 0.7951 GB, free: 11.62 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.915e-05/0.9297, allocations: 9.266 kB / 0.7951 GB, free: 11.61 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003613/0.9301, allocations: 61.48 kB / 0.7952 GB, free: 11.59 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008982/0.931, allocations: 225.1 kB / 0.7954 GB, free: 11.53 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0003648/0.9314, allocations: 0.5935 MB / 0.796 GB, free: 10.96 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001468/0.9328, allocations: 91.11 kB / 0.7961 GB, free: 10.91 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.518e-05/0.9329, allocations: 37.97 kB / 0.7961 GB, free: 10.91 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001183/0.9341, allocations: 0.5939 MB / 0.7967 GB, free: 10.55 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0009223/0.9351, allocations: 0.6578 MB / 0.7973 GB, free: 9.965 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001533/0.9366, allocations: 0.8893 MB / 0.7982 GB, free: 9.34 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.978e-06/0.9366, allocations: 2.906 kB / 0.7982 GB, free: 9.34 MB / 0.5762 GB Notification: Performance of matching and sorting (n=110) (initialization_lambda0): time 0.002582/0.9392, allocations: 1.099 MB / 0.7993 GB, free: 8.785 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.653e-05/0.9392, allocations: 8.656 kB / 0.7993 GB, free: 8.785 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.696e-06/0.9392, allocations: 4.594 kB / 0.7993 GB, free: 8.785 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002511/0.9395, allocations: 63.42 kB / 0.7993 GB, free: 8.758 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007727/0.9403, allocations: 218.4 kB / 0.7996 GB, free: 8.703 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000318/0.9406, allocations: 0.5863 MB / 0.8001 GB, free: 8.141 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001514/0.9421, allocations: 93.73 kB / 0.8002 GB, free: 8.094 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.266e-05/0.9422, allocations: 41.45 kB / 0.8003 GB, free: 8.082 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 31 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (105): * Single equations (assignments): 104 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,5)} Notification: Performance of prepare postOptimizeDAE: time 0.0003453/0.9426, allocations: 238.3 kB / 0.8005 GB, free: 7.859 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002576/0.9428, allocations: 146.8 kB / 0.8006 GB, free: 7.781 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00234/0.9452, allocations: 1.009 MB / 0.8016 GB, free: 7.191 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.579e-05/0.9452, allocations: 16.2 kB / 0.8016 GB, free: 7.184 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.632e-06/0.9452, allocations: 0 / 0.8016 GB, free: 7.184 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001799/0.947, allocations: 0.9068 MB / 0.8025 GB, free: 6.629 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004579/0.9516, allocations: 2.624 MB / 0.8051 GB, free: 4.746 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.536e-06/0.9516, allocations: 5.062 kB / 0.8051 GB, free: 4.746 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006437/0.9523, allocations: 151.6 kB / 0.8052 GB, free: 4.703 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003607/0.9527, allocations: 140.3 kB / 0.8054 GB, free: 4.621 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.187e-05/0.9527, allocations: 22.56 kB / 0.8054 GB, free: 4.609 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007222/0.9535, allocations: 1.73 MB / 0.8071 GB, free: 2.926 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.897e-06/0.9535, allocations: 2.688 kB / 0.8071 GB, free: 2.926 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00302/0.9565, allocations: 1.613 MB / 0.8086 GB, free: 1.887 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006174/0.9571, allocations: 314.5 kB / 0.8089 GB, free: 1.617 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001846/0.9573, allocations: 20.53 kB / 0.809 GB, free: 1.605 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008736/0.9582, allocations: 70.77 kB / 0.809 GB, free: 1.57 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001216/0.9583, allocations: 71.48 kB / 0.8091 GB, free: 1.527 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.767e-05/0.9584, allocations: 34.97 kB / 0.8091 GB, free: 1.516 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.001113/0.9595, allocations: 0.8904 MB / 0.81 GB, free: 1.02 MB / 0.5762 GB Notification: Performance of sort global known variables: time 4.51e-07/0.9595, allocations: 0 / 0.81 GB, free: 1.02 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.002014/0.9615, allocations: 0.6466 MB / 0.8106 GB, free: 0.9414 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 21 * Number of states: 2 (chi.con.vol.dynBal.U,chi.eva.vol.dynBal.U) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (61): * Single equations (assignments): 58 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(1,5), (1,3), (1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007391/0.9623, allocations: 397.3 kB / 0.811 GB, free: 0.7305 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.002906/0.9652, allocations: 1.352 MB / 0.8123 GB, free: 116 kB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 6.252e-06/0.9652, allocations: 0 / 0.8123 GB, free: 116 kB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.001133/0.9664, allocations: 463.5 kB / 0.8128 GB, free: 15.68 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00396/0.9703, allocations: 0.8694 MB / 0.8136 GB, free: 14.83 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004165/0.9745, allocations: 2.415 MB / 0.816 GB, free: 12.34 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007859/0.9753, allocations: 1.195 MB / 0.8172 GB, free: 11.12 MB / 0.5919 GB Notification: Performance of simCode: alias equations: time 0.00133/0.9767, allocations: 343.6 kB / 0.8175 GB, free: 10.78 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003401/0.977, allocations: 119.3 kB / 0.8176 GB, free: 10.66 MB / 0.5919 GB Notification: Performance of SimCode: time 4.5e-07/0.977, allocations: 0 / 0.8176 GB, free: 10.66 MB / 0.5919 GB Notification: Performance of Templates: time 0.05934/1.036, allocations: 33.61 MB / 0.8504 GB, free: 9.426 MB / 0.6231 GB make -j1 -f Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL.makefile (rm -f Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL.pipe ; mkfifo Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL.pipe >> ../files/Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL.sim & ./Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Fluid.Chillers.Validation.Carnot_y_etaPL.pipe 2>&1)