Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8.0.0_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo) Running command: "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl,fileNamePrefix="Buildings_8_0_0_Buildings_Fluid_HeatExchangers_Examples_PlateHeatExchangerEffectivenessNTUPControl",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl,fileNamePrefix="Buildings_8_0_0_Buildings_Fluid_HeatExchangers_Examples_PlateHeatExchangerEffectivenessNTUPControl",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo): time 1.534/1.534, allocations: 287.4 MB / 302.6 MB, free: 8.262 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.000893/0.000893, allocations: 178 kB / 371.1 MB, free: 10.82 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.249/1.249, allocations: 205.4 MB / 0.6298 GB, free: 10.54 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0007345/0.0007345, allocations: 93.25 kB / 0.7431 GB, free: 6.531 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0003659/0.0003663, allocations: 11.5 kB / 0.8662 GB, free: 140.9 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1603/0.1607, allocations: 115.3 MB / 0.9787 GB, free: 28.07 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl): time 0.03073/0.1915, allocations: 44.4 MB / 1.022 GB, free: 15.54 MB / 0.6511 GB Notification: Performance of NFInst.instExpressions: time 0.01705/0.2086, allocations: 13.06 MB / 1.035 GB, free: 2.457 MB / 0.6511 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001824/0.2104, allocations: 51.62 kB / 1.035 GB, free: 2.406 MB / 0.6511 GB Notification: Performance of NFTyping.typeComponents: time 0.001733/0.2122, allocations: 0.5199 MB / 1.035 GB, free: 1.883 MB / 0.6511 GB Notification: Performance of NFTyping.typeBindings: time 0.004646/0.2169, allocations: 1.49 MB / 1.037 GB, free: 396 kB / 0.6511 GB Notification: Performance of NFTyping.typeClassSections: time 0.007648/0.2245, allocations: 2.636 MB / 1.039 GB, free: 13.78 MB / 0.6667 GB Notification: Performance of NFFlatten.flatten: time 0.005126/0.2297, allocations: 3.745 MB / 1.043 GB, free: 10.02 MB / 0.6667 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001711/0.2314, allocations: 1.011 MB / 1.044 GB, free: 8.984 MB / 0.6667 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002808/0.2342, allocations: 1.236 MB / 1.045 GB, free: 7.742 MB / 0.6667 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001428/0.2357, allocations: 0.9098 MB / 1.046 GB, free: 6.828 MB / 0.6667 GB Notification: Performance of NFPackage.collectConstants: time 0.0001964/0.2359, allocations: 52 kB / 1.046 GB, free: 6.777 MB / 0.6667 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003494/0.2394, allocations: 1.989 MB / 1.048 GB, free: 4.785 MB / 0.6667 GB Notification: Performance of NFScalarize.scalarize: time 0.0003152/0.2397, allocations: 262.7 kB / 1.048 GB, free: 4.527 MB / 0.6667 GB Notification: Performance of NFVerifyModel.verify: time 0.0005028/0.2402, allocations: 312.9 kB / 1.049 GB, free: 4.215 MB / 0.6667 GB Notification: Performance of NFConvertDAE.convert: time 0.00291/0.2432, allocations: 2.085 MB / 1.051 GB, free: 2.125 MB / 0.6667 GB Notification: Performance of FrontEnd - DAE generated: time 4.128e-06/0.2432, allocations: 4 kB / 1.051 GB, free: 2.121 MB / 0.6667 GB Notification: Performance of FrontEnd: time 1.723e-06/0.2432, allocations: 0 / 1.051 GB, free: 2.121 MB / 0.6667 GB Notification: Performance of Transformations before backend: time 2.6e-05/0.2432, allocations: 0 / 1.051 GB, free: 2.121 MB / 0.6667 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 215 * Number of variables: 215 Notification: Performance of Generate backend data structure: time 0.003103/0.2463, allocations: 1.841 MB / 1.053 GB, free: 224 kB / 0.6667 GB Notification: Performance of prepare preOptimizeDAE: time 3.875e-05/0.2464, allocations: 12.03 kB / 1.053 GB, free: 212 kB / 0.6667 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001428/0.2465, allocations: 135.3 kB / 1.053 GB, free: 68 kB / 0.6667 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001443/0.248, allocations: 417.7 kB / 1.053 GB, free: 15.65 MB / 0.6823 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002033/0.25, allocations: 1.175 MB / 1.054 GB, free: 14.43 MB / 0.6823 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005809/0.2506, allocations: 210.2 kB / 1.054 GB, free: 14.22 MB / 0.6823 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000155/0.2508, allocations: 107.9 kB / 1.055 GB, free: 14.12 MB / 0.6823 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001967/0.2528, allocations: 1.142 MB / 1.056 GB, free: 12.93 MB / 0.6823 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.931e-05/0.2528, allocations: 0 / 1.056 GB, free: 12.93 MB / 0.6823 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.654e-05/0.2529, allocations: 36 kB / 1.056 GB, free: 12.9 MB / 0.6823 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.758e-05/0.2529, allocations: 24 kB / 1.056 GB, free: 12.88 MB / 0.6823 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002265/0.2552, allocations: 1.062 MB / 1.057 GB, free: 11.81 MB / 0.6823 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 0.006714/0.2619, allocations: 4.758 MB / 1.061 GB, free: 6.777 MB / 0.6823 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002106/0.264, allocations: 0.9112 MB / 1.062 GB, free: 5.855 MB / 0.6823 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009984/0.265, allocations: 474.5 kB / 1.063 GB, free: 5.391 MB / 0.6823 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001101/0.2662, allocations: 1.076 MB / 1.064 GB, free: 4.094 MB / 0.6823 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001248/0.2674, allocations: 0.547 MB / 1.064 GB, free: 3.531 MB / 0.6823 GB Notification: Performance of pre-optimization done (n=73): time 3.336e-06/0.2674, allocations: 0 / 1.064 GB, free: 3.531 MB / 0.6823 GB Notification: Performance of matching and sorting (n=73): time 0.003435/0.2709, allocations: 1.406 MB / 1.066 GB, free: 2.121 MB / 0.6823 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.351e-05/0.271, allocations: 137.2 kB / 1.066 GB, free: 1.957 MB / 0.6823 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001472/0.2725, allocations: 1.183 MB / 1.067 GB, free: 0.7617 MB / 0.6823 GB Notification: Performance of collectPreVariables (initialization): time 0.0001237/0.2726, allocations: 41.7 kB / 1.067 GB, free: 0.7148 MB / 0.6823 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004722/0.2731, allocations: 0.5992 MB / 1.068 GB, free: 112 kB / 0.6823 GB Notification: Performance of collectInitialBindings (initialization): time 0.3307/0.6038, allocations: 246.3 kB / 1.068 GB, free: 89.02 MB / 0.6823 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001292/0.604, allocations: 19.41 kB / 1.068 GB, free: 89.02 MB / 0.6823 GB Notification: Performance of setup shared object (initialization): time 0.0001207/0.6041, allocations: 344.9 kB / 1.068 GB, free: 88.71 MB / 0.6823 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001493/0.6056, allocations: 461.8 kB / 1.069 GB, free: 88.71 MB / 0.6823 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001545/0.6071, allocations: 0.707 MB / 1.069 GB, free: 88.47 MB / 0.6823 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002294/0.6095, allocations: 1.068 MB / 1.07 GB, free: 88.28 MB / 0.6823 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.895e-06/0.6095, allocations: 1.781 kB / 1.07 GB, free: 88.28 MB / 0.6823 GB Notification: Performance of matching and sorting (n=125) (initialization): time 0.003111/0.6126, allocations: 1.352 MB / 1.072 GB, free: 87.89 MB / 0.6823 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001225/0.6127, allocations: 246.4 kB / 1.072 GB, free: 87.61 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.38e-05/0.6128, allocations: 8.594 kB / 1.072 GB, free: 87.61 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.013e-05/0.6128, allocations: 9.281 kB / 1.072 GB, free: 87.61 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001469/0.6143, allocations: 312.1 kB / 1.072 GB, free: 87.59 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004988/0.6148, allocations: 1.201 MB / 1.073 GB, free: 86.4 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001509/0.6163, allocations: 209 kB / 1.074 GB, free: 86.38 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001528/0.6165, allocations: 50.69 kB / 1.074 GB, free: 86.37 MB / 0.6823 GB Notification: Performance of prepare postOptimizeDAE: time 1.03e-05/0.6165, allocations: 4.062 kB / 1.074 GB, free: 86.37 MB / 0.6823 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002942/0.6195, allocations: 1.207 MB / 1.075 GB, free: 85.96 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.216e-05/0.6195, allocations: 5.656 kB / 1.075 GB, free: 85.96 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.627e-05/0.6195, allocations: 11.33 kB / 1.075 GB, free: 85.96 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001167/0.6207, allocations: 280.5 kB / 1.075 GB, free: 85.95 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.728e-05/0.6207, allocations: 15.09 kB / 1.075 GB, free: 85.94 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001312/0.622, allocations: 189 kB / 1.075 GB, free: 85.92 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001381/0.6222, allocations: 54.09 kB / 1.075 GB, free: 85.91 MB / 0.6823 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 19 * Number of states: 0 () * Number of discrete variables: 8 ($whenCondition1,$PRE.TSet.T_start,TSet.T_start,$PRE.TSet.count,TSet.count,hex.flowRegime,hex.flowRegime_nominal,P.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (122): * Single equations (assignments): 117 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 2 {1,1} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0006774/0.6229, allocations: 377.8 kB / 1.076 GB, free: 85.61 MB / 0.6823 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003111/0.6232, allocations: 145.5 kB / 1.076 GB, free: 85.54 MB / 0.6823 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003241/0.6264, allocations: 1.322 MB / 1.077 GB, free: 85.1 MB / 0.6823 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.233e-05/0.6265, allocations: 9.969 kB / 1.077 GB, free: 85.1 MB / 0.6823 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.967e-06/0.6265, allocations: 0 / 1.077 GB, free: 85.1 MB / 0.6823 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.422e-05/0.6265, allocations: 8.641 kB / 1.077 GB, free: 85.1 MB / 0.6823 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005321/0.6318, allocations: 2.541 MB / 1.08 GB, free: 83.97 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.819e-06/0.6319, allocations: 6.062 kB / 1.08 GB, free: 83.97 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001067/0.6329, allocations: 222.6 kB / 1.08 GB, free: 83.95 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.057e-05/0.633, allocations: 8.844 kB / 1.08 GB, free: 83.95 MB / 0.6823 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.778e-05/0.6331, allocations: 33.3 kB / 1.08 GB, free: 83.93 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0003885/0.6335, allocations: 1.186 MB / 1.081 GB, free: 82.75 MB / 0.6823 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.953e-06/0.6335, allocations: 9.75 kB / 1.081 GB, free: 82.74 MB / 0.6823 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004189/0.6377, allocations: 1.908 MB / 1.083 GB, free: 81.91 MB / 0.6823 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006584/0.6384, allocations: 353.2 kB / 1.083 GB, free: 81.66 MB / 0.6823 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002733/0.6386, allocations: 20.41 kB / 1.083 GB, free: 81.64 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001082/0.6397, allocations: 123.8 kB / 1.083 GB, free: 81.62 MB / 0.6823 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001585/0.6399, allocations: 69.47 kB / 1.083 GB, free: 81.6 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000115/0.64, allocations: 41.36 kB / 1.084 GB, free: 81.59 MB / 0.6823 GB Notification: Performance of sorting global known variables: time 0.001307/0.6413, allocations: 0.778 MB / 1.084 GB, free: 81.28 MB / 0.6823 GB Notification: Performance of sort global known variables: time 1.513e-06/0.6414, allocations: 0 / 1.084 GB, free: 81.28 MB / 0.6823 GB Notification: Performance of remove unused functions: time 0.002363/0.6437, allocations: 0.789 MB / 1.085 GB, free: 81.16 MB / 0.6823 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * Number of states: 4 (temSen.T,val.filter.x[1],val.filter.x[2],P.I.y) * Number of discrete variables: 4 ($whenCondition1,TSet.T_start,TSet.count,hex.flowRegime) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (90): * Single equations (assignments): 80 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 6 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 2 {1,1} * Without analytic Jacobian: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.005388/0.6491, allocations: 2.916 MB / 1.088 GB, free: 79.73 MB / 0.6823 GB Notification: Performance of simCode: created initialization part: time 0.004643/0.6538, allocations: 1.972 MB / 1.09 GB, free: 79.02 MB / 0.6823 GB Notification: Performance of simCode: created event and clocks part: time 5.651e-06/0.6538, allocations: 1.125 kB / 1.09 GB, free: 79.02 MB / 0.6823 GB Notification: Performance of simCode: created simulation system equations: time 0.001316/0.6551, allocations: 0.607 MB / 1.09 GB, free: 78.84 MB / 0.6823 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00332/0.6585, allocations: 0.5711 MB / 1.091 GB, free: 78.71 MB / 0.6823 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01644/0.6749, allocations: 8.495 MB / 1.099 GB, free: 74.3 MB / 0.6823 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008229/0.6758, allocations: 1.173 MB / 1.1 GB, free: 73.56 MB / 0.6823 GB Notification: Performance of simCode: alias equations: time 0.001992/0.6778, allocations: 373.1 kB / 1.101 GB, free: 73.48 MB / 0.6823 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007815/0.6786, allocations: 0.5493 MB / 1.101 GB, free: 73.07 MB / 0.6823 GB Notification: Performance of SimCode: time 1.202e-06/0.6786, allocations: 0 / 1.101 GB, free: 73.07 MB / 0.6823 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.7699/1.449, allocations: 40.27 MB / 1.141 GB, free: 44.29 MB / 0.6823 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002177/1.449, allocations: 298.5 kB / 1.141 GB, free: 43.92 MB / 0.6823 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.507/4.956, allocations: 4 kB / 1.141 GB, free: 43.91 MB / 0.6823 GB (rm -f Buildings_8.0.0_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.pipe ; mkfifo Buildings_8.0.0_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.pipe ; head -c 1048576 < Buildings_8.0.0_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.pipe >> ../files/Buildings_8.0.0_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_0_0_Buildings_Fluid_HeatExchangers_Examples_PlateHeatExchangerEffectivenessNTUPControl_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_8_0_0_Buildings_Fluid_HeatExchangers_Examples_PlateHeatExchangerEffectivenessNTUPControl.fmu > Buildings_8.0.0_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.pipe 2>&1)