Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Sensors.Examples.Density.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/IDEAS 3.0.0/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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(IDEAS.Fluid.Sensors.Examples.Density,fileNamePrefix="IDEAS_IDEAS_Fluid_Sensors_Examples_Density",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Sensors.Examples.Density,fileNamePrefix="IDEAS_IDEAS_Fluid_Sensors_Examples_Density",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 0.001083/0.001083, allocations: 111.3 kB / 15.23 MB, free: 0.6367 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001083/0.001083, allocations: 190.8 kB / 16.14 MB, free: 6.734 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.241/1.241, allocations: 222.9 MB / 239.8 MB, free: 4.617 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.8066/0.8066, allocations: 132.2 MB / 422.1 MB, free: 2.012 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001157/0.001157, allocations: 63.17 kB / 0.5012 GB, free: 9.129 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.149/0.1502, allocations: 80.2 MB / 0.5795 GB, free: 9.145 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Sensors.Examples.Density): time 0.4037/0.5539, allocations: 182.8 MB / 0.758 GB, free: 12.38 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.009222/0.5632, allocations: 7.042 MB / 0.7649 GB, free: 5.457 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008646/0.5641, allocations: 23.81 kB / 0.7649 GB, free: 5.434 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.000982/0.5651, allocations: 342.2 kB / 0.7652 GB, free: 5.098 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.003153/0.5682, allocations: 1.358 MB / 0.7666 GB, free: 3.734 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.002534/0.5708, allocations: 1.058 MB / 0.7676 GB, free: 2.684 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.003314/0.5741, allocations: 2.711 MB / 0.7702 GB, free: 15.96 MB / 0.5919 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001122/0.5752, allocations: 0.5566 MB / 0.7708 GB, free: 15.4 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002183/0.5774, allocations: 0.7312 MB / 0.7715 GB, free: 14.67 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00178/0.5792, allocations: 0.6225 MB / 0.7721 GB, free: 14.04 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0001295/0.5794, allocations: 36 kB / 0.7721 GB, free: 14.01 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00666/0.5861, allocations: 2.19 MB / 0.7743 GB, free: 11.81 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0004614/0.5865, allocations: 263.2 kB / 0.7745 GB, free: 11.55 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.0005617/0.5871, allocations: 398 kB / 0.7749 GB, free: 11.16 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.003521/0.5907, allocations: 1.835 MB / 0.7767 GB, free: 9.324 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 4.779e-06/0.5907, allocations: 0 / 0.7767 GB, free: 9.324 MB / 0.5919 GB Notification: Performance of FrontEnd: time 1.102e-06/0.5907, allocations: 0 / 0.7767 GB, free: 9.324 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 1.483e-05/0.5907, allocations: 4 kB / 0.7767 GB, free: 9.32 MB / 0.5919 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 131 * Number of variables: 131 Notification: Performance of Generate backend data structure: time 0.002527/0.5933, allocations: 1.155 MB / 0.7778 GB, free: 8.113 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 5.113e-05/0.5933, allocations: 8.031 kB / 0.7778 GB, free: 8.105 MB / 0.5919 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001585/0.5935, allocations: 94.52 kB / 0.7779 GB, free: 8.004 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003065/0.5966, allocations: 274.8 kB / 0.7782 GB, free: 7.734 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001224/0.5978, allocations: 0.583 MB / 0.7788 GB, free: 7.113 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.987e-05/0.5979, allocations: 45.31 kB / 0.7788 GB, free: 7.07 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001307/0.598, allocations: 59.94 kB / 0.7789 GB, free: 7.012 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00165/0.5997, allocations: 0.6284 MB / 0.7795 GB, free: 6.367 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.421e-05/0.5997, allocations: 3.984 kB / 0.7795 GB, free: 6.363 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.001e-05/0.5998, allocations: 24 kB / 0.7795 GB, free: 6.34 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.843e-05/0.5999, allocations: 17.31 kB / 0.7795 GB, free: 6.32 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001396/0.6013, allocations: 0.529 MB / 0.78 GB, free: 5.789 MB / 0.5919 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 0.004013/0.6053, allocations: 2.437 MB / 0.7824 GB, free: 3.141 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0009079/0.6062, allocations: 379.7 kB / 0.7828 GB, free: 2.762 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005635/0.6068, allocations: 238 kB / 0.783 GB, free: 2.527 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0007411/0.6076, allocations: 303.6 kB / 0.7833 GB, free: 2.176 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.225e-05/0.6076, allocations: 34.89 kB / 0.7833 GB, free: 2.133 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=39): time 2.425e-06/0.6076, allocations: 4 kB / 0.7833 GB, free: 2.129 MB / 0.5919 GB Notification: Performance of matching and sorting (n=39): time 0.001968/0.6096, allocations: 0.6151 MB / 0.7839 GB, free: 1.508 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.354e-05/0.6096, allocations: 63.34 kB / 0.784 GB, free: 1.434 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007935/0.6105, allocations: 0.495 MB / 0.7845 GB, free: 0.9258 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 6.026e-05/0.6105, allocations: 37.7 kB / 0.7845 GB, free: 0.8828 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002985/0.6108, allocations: 320.5 kB / 0.7848 GB, free: 0.5664 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001624/0.611, allocations: 142 kB / 0.785 GB, free: 436 kB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002085/0.6112, allocations: 90.03 kB / 0.785 GB, free: 340 kB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0002065/0.6114, allocations: 366.8 kB / 0.7854 GB, free: 15.96 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004885/0.6119, allocations: 174.5 kB / 0.7856 GB, free: 15.79 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006083/0.6126, allocations: 288.2 kB / 0.7858 GB, free: 15.46 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001127/0.6137, allocations: 450.5 kB / 0.7863 GB, free: 15 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.097e-06/0.6137, allocations: 0 / 0.7863 GB, free: 15 MB / 0.6075 GB Notification: Performance of matching and sorting (n=53) (initialization): time 0.001413/0.6151, allocations: 0.525 MB / 0.7868 GB, free: 14.46 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 2.331e-05/0.6152, allocations: 4 kB / 0.7868 GB, free: 14.46 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.04e-05/0.6152, allocations: 7.938 kB / 0.7868 GB, free: 14.45 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.009e-05/0.6152, allocations: 4 kB / 0.7868 GB, free: 14.45 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001094/0.6163, allocations: 140 kB / 0.7869 GB, free: 14.31 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000477/0.6168, allocations: 0.5899 MB / 0.7875 GB, free: 13.7 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009285/0.6178, allocations: 79.58 kB / 0.7876 GB, free: 13.62 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.484e-05/0.6178, allocations: 23.97 kB / 0.7876 GB, free: 13.6 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0008053/0.6187, allocations: 354.4 kB / 0.7879 GB, free: 13.25 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006412/0.6193, allocations: 288.2 kB / 0.7882 GB, free: 12.93 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001129/0.6205, allocations: 444.7 kB / 0.7886 GB, free: 12.46 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.745e-06/0.6205, allocations: 4 kB / 0.7886 GB, free: 12.46 MB / 0.6075 GB Notification: Performance of matching and sorting (n=53) (initialization_lambda0): time 0.001419/0.6219, allocations: 0.5239 MB / 0.7892 GB, free: 11.93 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 1.439e-05/0.6219, allocations: 6.344 kB / 0.7892 GB, free: 11.93 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.532e-06/0.622, allocations: 4 kB / 0.7892 GB, free: 11.92 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 9.908e-06/0.622, allocations: 4.281 kB / 0.7892 GB, free: 11.92 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007896/0.6228, allocations: 123.8 kB / 0.7893 GB, free: 11.8 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.086e-05/0.6228, allocations: 4 kB / 0.7893 GB, free: 11.79 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008805/0.6237, allocations: 67.64 kB / 0.7894 GB, free: 11.73 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.575e-05/0.6238, allocations: 20 kB / 0.7894 GB, free: 11.71 MB / 0.6075 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 10 * 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 (53): * Single equations (assignments): 52 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002218/0.624, allocations: 210 kB / 0.7896 GB, free: 11.5 MB / 0.6075 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001631/0.6242, allocations: 63.19 kB / 0.7896 GB, free: 11.43 MB / 0.6075 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001335/0.6255, allocations: 482.4 kB / 0.7901 GB, free: 10.96 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.317e-06/0.6255, allocations: 7.938 kB / 0.7901 GB, free: 10.95 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.462e-06/0.6255, allocations: 0 / 0.7901 GB, free: 10.95 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.00126/0.6268, allocations: 0.7146 MB / 0.7908 GB, free: 10.15 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003008/0.6298, allocations: 1.273 MB / 0.792 GB, free: 8.797 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.476e-06/0.6299, allocations: 7.984 kB / 0.7921 GB, free: 8.789 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009822/0.6309, allocations: 126.2 kB / 0.7922 GB, free: 8.668 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.277e-06/0.6309, allocations: 11.92 kB / 0.7922 GB, free: 8.656 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.445e-05/0.6309, allocations: 8 kB / 0.7922 GB, free: 8.648 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0003929/0.6313, allocations: 0.5899 MB / 0.7928 GB, free: 8.035 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.851e-06/0.6314, allocations: 4.031 kB / 0.7928 GB, free: 8.031 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001857/0.6332, allocations: 0.8218 MB / 0.7936 GB, free: 7.172 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003472/0.6336, allocations: 184.2 kB / 0.7937 GB, free: 6.973 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000125/0.6337, allocations: 11.94 kB / 0.7938 GB, free: 6.961 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007889/0.6345, allocations: 50.19 kB / 0.7938 GB, free: 6.914 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001055/0.6346, allocations: 27.91 kB / 0.7938 GB, free: 6.887 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.457e-05/0.6347, allocations: 19.98 kB / 0.7939 GB, free: 6.867 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.0006082/0.6353, allocations: 350.8 kB / 0.7942 GB, free: 6.527 MB / 0.6075 GB Notification: Performance of sort global known variables: time 2.71e-07/0.6353, allocations: 4 kB / 0.7942 GB, free: 6.523 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.00152/0.6369, allocations: 363 kB / 0.7945 GB, free: 6.168 MB / 0.6075 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 4 (vol.dynBal.U,vol.dynBal.m,vol.dynBal.mXi[1],senDenFlo.d) * 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 (39): * Single equations (assignments): 38 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.002673/0.6396, allocations: 1.472 MB / 0.796 GB, free: 4.664 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.002113/0.6417, allocations: 0.669 MB / 0.7966 GB, free: 3.996 MB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 4.518e-06/0.6417, allocations: 1.125 kB / 0.7966 GB, free: 3.996 MB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.0006352/0.6423, allocations: 224.9 kB / 0.7968 GB, free: 3.777 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002647/0.645, allocations: 351.1 kB / 0.7972 GB, free: 3.438 MB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01042/0.6554, allocations: 5.35 MB / 0.8024 GB, free: 13.91 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007189/0.6562, allocations: 0.9455 MB / 0.8033 GB, free: 12.94 MB / 0.6231 GB Notification: Performance of simCode: alias equations: time 0.001156/0.6574, allocations: 207.2 kB / 0.8035 GB, free: 12.74 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004722/0.6578, allocations: 227.4 kB / 0.8037 GB, free: 12.52 MB / 0.6231 GB Notification: Performance of SimCode: time 7.21e-07/0.6578, allocations: 0 / 0.8037 GB, free: 12.52 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1267/0.7846, allocations: 17.14 MB / 0.8205 GB, free: 11.7 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.000288/0.7849, allocations: 261.4 kB / 0.8207 GB, free: 11.44 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.197/2.982, allocations: 0 / 0.8207 GB, free: 11.44 MB / 0.6387 GB (rm -f IDEAS_IDEAS.Fluid.Sensors.Examples.Density.pipe ; mkfifo IDEAS_IDEAS.Fluid.Sensors.Examples.Density.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Sensors.Examples.Density.pipe >> ../files/IDEAS_IDEAS.Fluid.Sensors.Examples.Density.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_IDEAS_Fluid_Sensors_Examples_Density_fmu --startTime=0 --stopTime=60 --timeout=50 --tolerance=1e-06 IDEAS_IDEAS_Fluid_Sensors_Examples_Density.fmu > IDEAS_IDEAS.Fluid.Sensors.Examples.Density.pipe 2>&1)