Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/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(IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Movers_Validation_PumpCurveDerivatives",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Movers_Validation_PumpCurveDerivatives",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 0.001052/0.001052, allocations: 109 kB / 16.41 MB, free: 6.461 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001003/0.001003, allocations: 193.3 kB / 17.34 MB, free: 5.715 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.242/1.242, allocations: 222.9 MB / 241 MB, free: 15.09 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7395/0.7395, allocations: 122.9 MB / 414.1 MB, free: 15.79 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001921/0.001921, allocations: 64.72 kB / 0.568 GB, free: 28.9 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2007/0.2026, allocations: 77.93 MB / 0.6441 GB, free: 9.555 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives): time 0.08251/0.2852, allocations: 79.34 MB / 0.7215 GB, free: 9.941 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.3407/0.6259, allocations: 28.38 MB / 0.7493 GB, free: 1.641 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004158/0.6301, allocations: 125.8 kB / 0.7494 GB, free: 1.637 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.007297/0.6374, allocations: 2.639 MB / 0.7519 GB, free: 1.629 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.009885/0.6473, allocations: 3.993 MB / 0.7558 GB, free: 1.543 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.007283/0.6546, allocations: 3.177 MB / 0.759 GB, free: 1.473 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.03141/0.686, allocations: 22.53 MB / 0.781 GB, free: 1.176 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0043/0.6904, allocations: 2.753 MB / 0.7836 GB, free: 16.81 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.006901/0.6973, allocations: 3.21 MB / 0.7868 GB, free: 16.6 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004029/0.7013, allocations: 2.566 MB / 0.7893 GB, free: 15.97 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0008206/0.7022, allocations: 373.2 kB / 0.7896 GB, free: 15.97 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005513/0.7077, allocations: 2.361 MB / 0.7919 GB, free: 15.5 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.001544/0.7093, allocations: 1.814 MB / 0.7937 GB, free: 14.84 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.003101/0.7124, allocations: 2.683 MB / 0.7963 GB, free: 13.9 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.009517/0.7219, allocations: 8.023 MB / 0.8042 GB, free: 10.25 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 4.258e-06/0.7219, allocations: 0 / 0.8042 GB, free: 10.25 MB / 0.5919 GB Notification: Performance of FrontEnd: time 1.533e-06/0.7219, allocations: 0 / 0.8042 GB, free: 10.25 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 0.0001342/0.7221, allocations: 6.312 kB / 0.8042 GB, free: 10.24 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: 405 * Number of variables: 405 Notification: Performance of Generate backend data structure: time 0.01248/0.7346, allocations: 6.102 MB / 0.8101 GB, free: 4.637 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 4.213e-05/0.7346, allocations: 12.62 kB / 0.8101 GB, free: 4.625 MB / 0.5919 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002842/0.7349, allocations: 228.2 kB / 0.8104 GB, free: 4.391 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008478/0.7434, allocations: 1.569 MB / 0.8119 GB, free: 2.816 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01489/0.7583, allocations: 8.718 MB / 0.8204 GB, free: 10.21 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001411/0.7585, allocations: 146.8 kB / 0.8205 GB, free: 10.07 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004055/0.7589, allocations: 188 kB / 0.8207 GB, free: 9.883 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004983/0.7639, allocations: 2.604 MB / 0.8233 GB, free: 7.191 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.244e-05/0.7639, allocations: 2.719 kB / 0.8233 GB, free: 7.191 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002027/0.7641, allocations: 68 kB / 0.8233 GB, free: 7.125 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.116e-05/0.7642, allocations: 40 kB / 0.8234 GB, free: 7.086 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005107/0.7693, allocations: 2.007 MB / 0.8253 GB, free: 5.094 MB / 0.6075 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 0.01798/0.7873, allocations: 12.14 MB / 0.8372 GB, free: 8.539 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004804/0.7921, allocations: 1.705 MB / 0.8389 GB, free: 6.836 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002034/0.7942, allocations: 0.798 MB / 0.8396 GB, free: 6.039 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 0.006836/0.801, allocations: 4.224 MB / 0.8438 GB, free: 1.582 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.999e-05/0.8011, allocations: 39.22 kB / 0.8438 GB, free: 1.535 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=82): time 3.566e-06/0.8011, allocations: 0 / 0.8438 GB, free: 1.535 MB / 0.6231 GB Notification: Performance of matching and sorting (n=82): time 0.007766/0.8088, allocations: 2.817 MB / 0.8466 GB, free: 14.71 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.615e-05/0.8089, allocations: 68.06 kB / 0.8466 GB, free: 14.63 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.009933/0.8188, allocations: 7.196 MB / 0.8536 GB, free: 7.457 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 0.0003074/0.8192, allocations: 57.7 kB / 0.8537 GB, free: 7.395 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.001831/0.821, allocations: 2.073 MB / 0.8557 GB, free: 5.332 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003872/0.8214, allocations: 323.6 kB / 0.856 GB, free: 5.02 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001015/0.8224, allocations: 0.7005 MB / 0.8567 GB, free: 4.312 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001032/0.8225, allocations: 309.1 kB / 0.857 GB, free: 4.008 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003394/0.8259, allocations: 2.032 MB / 0.859 GB, free: 1.965 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003988/0.8299, allocations: 2.916 MB / 0.8618 GB, free: 14.72 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.006737/0.8367, allocations: 4.584 MB / 0.8663 GB, free: 9.938 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.442e-05/0.8367, allocations: 8 kB / 0.8663 GB, free: 9.93 MB / 0.6544 GB Notification: Performance of matching and sorting (n=402) (initialization): time 0.009686/0.8464, allocations: 5.605 MB / 0.8718 GB, free: 4.453 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 2.98e-05/0.8465, allocations: 12 kB / 0.8718 GB, free: 4.441 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.226e-05/0.8465, allocations: 27.98 kB / 0.8718 GB, free: 4.414 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007898/0.8473, allocations: 411.7 kB / 0.8722 GB, free: 4.012 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002226/0.8495, allocations: 0.5837 MB / 0.8728 GB, free: 3.461 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008302/0.8504, allocations: 0.903 MB / 0.8737 GB, free: 2.543 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003712/0.8541, allocations: 417.4 kB / 0.8741 GB, free: 2.133 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002644/0.8544, allocations: 155.9 kB / 0.8742 GB, free: 1.98 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.004759/0.8591, allocations: 2.855 MB / 0.877 GB, free: 15.12 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.003572/0.8627, allocations: 2.689 MB / 0.8796 GB, free: 12.1 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.006015/0.8688, allocations: 4.136 MB / 0.8837 GB, free: 7.758 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.364e-05/0.8688, allocations: 4 kB / 0.8837 GB, free: 7.754 MB / 0.67 GB Notification: Performance of matching and sorting (n=402) (initialization_lambda0): time 0.008916/0.8777, allocations: 5.191 MB / 0.8888 GB, free: 2.699 MB / 0.67 GB Notification: Performance of prepare postOptimizeDAE: time 3.346e-05/0.8778, allocations: 18.25 kB / 0.8888 GB, free: 2.684 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.339e-05/0.8778, allocations: 24 kB / 0.8888 GB, free: 2.66 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001013/0.8788, allocations: 452.6 kB / 0.8892 GB, free: 2.215 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002092/0.8809, allocations: 0.5569 MB / 0.8898 GB, free: 1.691 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007822/0.8887, allocations: 6.127 MB / 0.8958 GB, free: 11.4 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00387/0.8926, allocations: 326.6 kB / 0.8961 GB, free: 11.08 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003058/0.893, allocations: 147.7 kB / 0.8962 GB, free: 10.94 MB / 0.6856 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 97 * 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 (281): * Single equations (assignments): 274 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 3 * 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 {(1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.0006425/0.8936, allocations: 314.6 kB / 0.8965 GB, free: 10.65 MB / 0.6856 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008901/0.8945, allocations: 472.8 kB / 0.897 GB, free: 10.18 MB / 0.6856 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006531/0.901, allocations: 2.478 MB / 0.8994 GB, free: 7.715 MB / 0.6856 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.909e-05/0.9011, allocations: 15.92 kB / 0.8994 GB, free: 7.699 MB / 0.6856 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.125e-06/0.9011, allocations: 0 / 0.8994 GB, free: 7.699 MB / 0.6856 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.145e-05/0.9011, allocations: 3.984 kB / 0.8994 GB, free: 7.695 MB / 0.6856 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01098/0.9121, allocations: 5.268 MB / 0.9045 GB, free: 2.391 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.665e-06/0.9121, allocations: 0 / 0.9045 GB, free: 2.391 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001489/0.9136, allocations: 263.8 kB / 0.9048 GB, free: 2.133 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003741/0.914, allocations: 160.7 kB / 0.9049 GB, free: 1.973 MB / 0.6856 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.957e-05/0.9141, allocations: 39.91 kB / 0.905 GB, free: 1.934 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0006803/0.9148, allocations: 0.8022 MB / 0.9058 GB, free: 1.105 MB / 0.6856 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.06e-06/0.9148, allocations: 8.047 kB / 0.9058 GB, free: 1.098 MB / 0.6856 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.008195/0.923, allocations: 3.436 MB / 0.9091 GB, free: 13.64 MB / 0.7012 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002376/0.9254, allocations: 0.8138 MB / 0.9099 GB, free: 12.8 MB / 0.7012 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007939/0.9262, allocations: 27.92 kB / 0.91 GB, free: 12.77 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002278/0.9285, allocations: 147.8 kB / 0.9101 GB, free: 12.63 MB / 0.7012 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001455/0.9287, allocations: 72.84 kB / 0.9102 GB, free: 12.55 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001241/0.9288, allocations: 55.89 kB / 0.9102 GB, free: 12.5 MB / 0.7012 GB Notification: Performance of sorting global known variables: time 0.008894/0.9377, allocations: 5.064 MB / 0.9152 GB, free: 7.465 MB / 0.7012 GB Notification: Performance of sort global known variables: time 3.41e-07/0.9377, allocations: 0 / 0.9152 GB, free: 7.465 MB / 0.7012 GB Notification: Performance of remove unused functions: time 0.007015/0.9448, allocations: 1.957 MB / 0.9171 GB, free: 5.508 MB / 0.7012 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 3 (ddp_dm_flow.x,ddp_dy.x,dm_flow_dy.x) * 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 (96): * Single equations (assignments): 87 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 8 * 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 Backend phase and start with SimCode phase: time 0.00998/0.9548, allocations: 4.618 MB / 0.9216 GB, free: 0.9023 MB / 0.7012 GB Notification: Performance of simCode: created initialization part: time 0.01048/0.9653, allocations: 5.766 MB / 0.9272 GB, free: 11.14 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 7.103e-06/0.9653, allocations: 12.06 kB / 0.9272 GB, free: 11.12 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.002269/0.9676, allocations: 0.8725 MB / 0.9281 GB, free: 10.25 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.009967/0.9776, allocations: 2.418 MB / 0.9304 GB, free: 7.898 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.08383/1.061, allocations: 43.97 MB / 0.9734 GB, free: 11 MB / 0.7637 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003746/1.065, allocations: 2.664 MB / 0.976 GB, free: 8.305 MB / 0.7637 GB Notification: Performance of simCode: alias equations: time 0.005423/1.071, allocations: 1.228 MB / 0.9772 GB, free: 7.074 MB / 0.7637 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00347/1.074, allocations: 2.003 MB / 0.9791 GB, free: 5.07 MB / 0.7637 GB Notification: Performance of SimCode: time 9.02e-07/1.074, allocations: 0 / 0.9791 GB, free: 5.07 MB / 0.7637 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.4615/1.536, allocations: 131.3 MB / 1.107 GB, free: 298.7 MB / 0.8262 GB Notification: Performance of buildModelFMU: Generate platform static: time 22.24/23.77, allocations: 6.672 kB / 1.107 GB, free: 298.7 MB / 0.8262 GB (rm -f IBPSA_latest_IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives.sim & python3 -m fmpy simulate --output-file IBPSA_latest_IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 IBPSA_latest_IBPSA_Fluid_Movers_Validation_PumpCurveDerivatives.fmu > IBPSA_latest_IBPSA.Fluid.Movers.Validation.PumpCurveDerivatives.pipe 2>&1)