Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/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 8.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo) Running command: "" <> buildModelFMU(Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling,fileNamePrefix="Buildings_maint_8_0_x_Buildings_Obsolete_DistrictHeatingCooling_Plants_Validation_LakeWaterHeatExchanger_T_Cooling",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling,fileNamePrefix="Buildings_maint_8_0_x_Buildings_Obsolete_DistrictHeatingCooling_Plants_Validation_LakeWaterHeatExchanger_T_Cooling",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.843/1.843, allocations: 288.4 MB / 303.3 MB, free: 8.203 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001031/0.001031, allocations: 177.7 kB / 372 MB, free: 10.27 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.385/1.385, allocations: 205.4 MB / 0.6307 GB, free: 9.953 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0007734/0.0007732, allocations: 93.27 kB / 0.744 GB, free: 5.879 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0004068/0.0004069, allocations: 10.91 kB / 0.867 GB, free: 142 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2144/0.2148, allocations: 115.3 MB / 0.9796 GB, free: 27.55 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling): time 0.5309/0.7457, allocations: 106.7 MB / 1.084 GB, free: 22.83 MB / 0.6823 GB Notification: Performance of NFInst.instExpressions: time 0.03662/0.7824, allocations: 24.68 MB / 1.108 GB, free: 22.38 MB / 0.6823 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005212/0.7877, allocations: 114.3 kB / 1.108 GB, free: 22.38 MB / 0.6823 GB Notification: Performance of NFTyping.typeComponents: time 0.003863/0.7916, allocations: 0.8598 MB / 1.109 GB, free: 22.36 MB / 0.6823 GB Notification: Performance of NFTyping.typeBindings: time 0.01069/0.8023, allocations: 2.753 MB / 1.112 GB, free: 21.73 MB / 0.6823 GB Notification: Performance of NFTyping.typeClassSections: time 0.008086/0.8104, allocations: 2.203 MB / 1.114 GB, free: 21.39 MB / 0.6823 GB Notification: Performance of NFFlatten.flatten: time 0.01265/0.8231, allocations: 8.098 MB / 1.122 GB, free: 18.08 MB / 0.6823 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004225/0.8273, allocations: 2.029 MB / 1.124 GB, free: 17.36 MB / 0.6823 GB Notification: Performance of NFEvalConstants.evaluate: time 0.006287/0.8336, allocations: 2.378 MB / 1.126 GB, free: 16.47 MB / 0.6823 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00426/0.8379, allocations: 1.929 MB / 1.128 GB, free: 15.82 MB / 0.6823 GB Notification: Performance of NFPackage.collectConstants: time 0.0009499/0.8389, allocations: 103.1 kB / 1.128 GB, free: 15.82 MB / 0.6823 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004675/0.8436, allocations: 1.043 MB / 1.129 GB, free: 15.54 MB / 0.6823 GB Notification: Performance of NFScalarize.scalarize: time 0.001163/0.8448, allocations: 467.4 kB / 1.129 GB, free: 15.3 MB / 0.6823 GB Notification: Performance of NFVerifyModel.verify: time 0.001877/0.8467, allocations: 0.627 MB / 1.13 GB, free: 14.93 MB / 0.6823 GB Notification: Performance of NFConvertDAE.convert: time 0.007351/0.8541, allocations: 3.888 MB / 1.134 GB, free: 12.77 MB / 0.6823 GB Notification: Performance of FrontEnd - DAE generated: time 9.027e-06/0.8541, allocations: 5.594 kB / 1.134 GB, free: 12.77 MB / 0.6823 GB Notification: Performance of FrontEnd: time 4.479e-06/0.8541, allocations: 0 / 1.134 GB, free: 12.77 MB / 0.6823 GB Notification: Performance of Transformations before backend: time 0.0002483/0.8544, allocations: 0 / 1.134 GB, free: 12.77 MB / 0.6823 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 470 * Number of variables: 470 Notification: Performance of Generate backend data structure: time 0.008647/0.863, allocations: 2.866 MB / 1.137 GB, free: 10.76 MB / 0.6823 GB Notification: Performance of prepare preOptimizeDAE: time 5.165e-05/0.8631, allocations: 9 kB / 1.137 GB, free: 10.76 MB / 0.6823 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0008707/0.864, allocations: 268.2 kB / 1.137 GB, free: 10.55 MB / 0.6823 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006331/0.8703, allocations: 1.098 MB / 1.138 GB, free: 10.08 MB / 0.6823 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006063/0.8764, allocations: 2.377 MB / 1.14 GB, free: 8.262 MB / 0.6823 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000162/0.8766, allocations: 148.7 kB / 1.14 GB, free: 8.195 MB / 0.6823 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006014/0.8772, allocations: 192.8 kB / 1.141 GB, free: 8.133 MB / 0.6823 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.006318/0.8836, allocations: 2.517 MB / 1.143 GB, free: 6.594 MB / 0.6823 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.437e-05/0.8836, allocations: 9 kB / 1.143 GB, free: 6.586 MB / 0.6823 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002246/0.8839, allocations: 78.16 kB / 1.143 GB, free: 6.527 MB / 0.6823 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.285e-05/0.8839, allocations: 51.09 kB / 1.143 GB, free: 6.523 MB / 0.6823 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005976/0.8899, allocations: 2.377 MB / 1.146 GB, free: 5.379 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 0.01819/0.9081, allocations: 12.13 MB / 1.157 GB, free: 10.8 MB / 0.698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00677/0.9149, allocations: 2.103 MB / 1.159 GB, free: 9.828 MB / 0.698 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002356/0.9173, allocations: 0.9492 MB / 1.16 GB, free: 9.387 MB / 0.698 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001371/0.9187, allocations: 1.38 MB / 1.162 GB, free: 7.82 MB / 0.698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.58e-05/0.9188, allocations: 42.91 kB / 1.162 GB, free: 7.773 MB / 0.698 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001963/0.9208, allocations: 225.8 kB / 1.162 GB, free: 7.648 MB / 0.698 GB Notification: Performance of pre-optimization done (n=105): time 8.446e-06/0.9208, allocations: 3.406 kB / 1.162 GB, free: 7.648 MB / 0.698 GB Notification: Performance of matching and sorting (n=111): time 0.03681/0.9576, allocations: 9.162 MB / 1.171 GB, free: 3.082 MB / 0.698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.918e-05/0.9577, allocations: 163.2 kB / 1.171 GB, free: 2.887 MB / 0.698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004016/0.9618, allocations: 2.066 MB / 1.173 GB, free: 0.8008 MB / 0.698 GB Notification: Performance of collectPreVariables (initialization): time 0.0002526/0.962, allocations: 49.7 kB / 1.173 GB, free: 0.7461 MB / 0.698 GB Notification: Performance of collectInitialEqns (initialization): time 0.001277/0.9633, allocations: 1.187 MB / 1.174 GB, free: 15.54 MB / 0.7136 GB Notification: Performance of collectInitialBindings (initialization): time 0.000542/0.9639, allocations: 391.2 kB / 1.175 GB, free: 15.16 MB / 0.7136 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001427/0.964, allocations: 24 kB / 1.175 GB, free: 15.14 MB / 0.7136 GB Notification: Performance of setup shared object (initialization): time 0.0001935/0.9642, allocations: 365.9 kB / 1.175 GB, free: 14.78 MB / 0.7136 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00263/0.9669, allocations: 0.8979 MB / 1.176 GB, free: 13.88 MB / 0.7136 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0029/0.9698, allocations: 1.304 MB / 1.177 GB, free: 12.41 MB / 0.7136 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002695/0.9725, allocations: 0.9823 MB / 1.178 GB, free: 11.43 MB / 0.7136 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.059e-05/0.9725, allocations: 4 kB / 1.178 GB, free: 11.43 MB / 0.7136 GB Notification: Performance of matching and sorting (n=182) (initialization): time 0.009109/0.9816, allocations: 3.005 MB / 1.181 GB, free: 8.414 MB / 0.7136 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002737/0.9819, allocations: 384.5 kB / 1.181 GB, free: 7.906 MB / 0.7136 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.538e-05/0.982, allocations: 12 kB / 1.181 GB, free: 7.895 MB / 0.7136 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.006511/0.9885, allocations: 1.438 MB / 1.183 GB, free: 6.453 MB / 0.7136 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001751/0.9903, allocations: 335.5 kB / 1.183 GB, free: 6.125 MB / 0.7136 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01417/1.004, allocations: 6.081 MB / 1.189 GB, free: 15.88 MB / 0.7292 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003924/1.008, allocations: 383.3 kB / 1.189 GB, free: 15.51 MB / 0.7292 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004596/1.009, allocations: 75.95 kB / 1.19 GB, free: 15.43 MB / 0.7292 GB Notification: Performance of prepare postOptimizeDAE: time 1.223e-05/1.009, allocations: 4 kB / 1.19 GB, free: 15.43 MB / 0.7292 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.006807/1.016, allocations: 2.359 MB / 1.192 GB, free: 13.06 MB / 0.7292 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.602e-05/1.016, allocations: 8 kB / 1.192 GB, free: 13.05 MB / 0.7292 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002826/1.019, allocations: 0.6778 MB / 1.193 GB, free: 12.37 MB / 0.7292 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001977/1.021, allocations: 398.3 kB / 1.193 GB, free: 11.98 MB / 0.7292 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01361/1.034, allocations: 6.772 MB / 1.2 GB, free: 4.961 MB / 0.7292 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003373/1.038, allocations: 328.1 kB / 1.2 GB, free: 4.641 MB / 0.7292 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003401/1.038, allocations: 71.97 kB / 1.2 GB, free: 4.57 MB / 0.7292 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 42 * 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 (127): * Single equations (assignments): 125 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 2 {2 16,3 36} Notification: Performance of prepare postOptimizeDAE: time 0.001572/1.04, allocations: 0.6224 MB / 1.201 GB, free: 3.938 MB / 0.7292 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006995/1.04, allocations: 233.1 kB / 1.201 GB, free: 3.707 MB / 0.7292 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006737/1.047, allocations: 2.514 MB / 1.203 GB, free: 1.207 MB / 0.7292 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.58e-05/1.047, allocations: 19.98 kB / 1.203 GB, free: 1.188 MB / 0.7292 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.699e-06/1.047, allocations: 0 / 1.203 GB, free: 1.188 MB / 0.7292 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.005247/1.052, allocations: 2.351 MB / 1.206 GB, free: 14.76 MB / 0.7448 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01228/1.065, allocations: 5.13 MB / 1.211 GB, free: 9.586 MB / 0.7448 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.155e-06/1.065, allocations: 0 / 1.211 GB, free: 9.586 MB / 0.7448 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001327/1.066, allocations: 267.8 kB / 1.211 GB, free: 9.324 MB / 0.7448 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003446/1.07, allocations: 0.8228 MB / 1.212 GB, free: 8.5 MB / 0.7448 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000125/1.07, allocations: 35.97 kB / 1.212 GB, free: 8.465 MB / 0.7448 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002617/1.072, allocations: 1.493 MB / 1.213 GB, free: 6.945 MB / 0.7448 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.846e-06/1.072, allocations: 0 / 1.213 GB, free: 6.945 MB / 0.7448 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009016/1.081, allocations: 3.554 MB / 1.217 GB, free: 3.371 MB / 0.7448 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001526/1.083, allocations: 0.5214 MB / 1.217 GB, free: 2.828 MB / 0.7448 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007288/1.084, allocations: 28 kB / 1.217 GB, free: 2.801 MB / 0.7448 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002773/1.086, allocations: 311.4 kB / 1.217 GB, free: 2.496 MB / 0.7448 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001515/1.087, allocations: 76.84 kB / 1.217 GB, free: 2.422 MB / 0.7448 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001522/1.087, allocations: 47.97 kB / 1.217 GB, free: 2.375 MB / 0.7448 GB Notification: Performance of sorting global known variables: time 0.002954/1.09, allocations: 1.395 MB / 1.219 GB, free: 0.9688 MB / 0.7448 GB Notification: Performance of sort global known variables: time 1.71e-07/1.09, allocations: 4 kB / 1.219 GB, free: 0.9648 MB / 0.7448 GB Notification: Performance of remove unused functions: time 0.005339/1.095, allocations: 1.137 MB / 1.22 GB, free: 15.82 MB / 0.7605 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 2 (hex.valCoo.vol.dynBal.U,hex.valHea.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 (86): * Single equations (assignments): 78 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 7 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {3 37} Notification: Performance of Backend phase and start with SimCode phase: time 0.0105/1.106, allocations: 4.503 MB / 1.224 GB, free: 11.34 MB / 0.7605 GB Notification: Performance of simCode: created initialization part: time 0.009843/1.115, allocations: 3.825 MB / 1.228 GB, free: 7.484 MB / 0.7605 GB Notification: Performance of simCode: created event and clocks part: time 6.973e-06/1.115, allocations: 8.125 kB / 1.228 GB, free: 7.477 MB / 0.7605 GB Notification: Performance of simCode: created simulation system equations: time 0.002652/1.118, allocations: 0.987 MB / 1.229 GB, free: 6.492 MB / 0.7605 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007304/1.125, allocations: 1.149 MB / 1.23 GB, free: 5.355 MB / 0.7605 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.05536/1.181, allocations: 17.07 MB / 1.247 GB, free: 3.074 MB / 0.7761 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001353/1.182, allocations: 1.632 MB / 1.248 GB, free: 1.414 MB / 0.7761 GB Notification: Performance of simCode: alias equations: time 0.00282/1.185, allocations: 490.2 kB / 1.249 GB, free: 0.9531 MB / 0.7761 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001537/1.187, allocations: 1.038 MB / 1.25 GB, free: 15.91 MB / 0.7917 GB Notification: Performance of SimCode: time 9.22e-07/1.187, allocations: 0 / 1.25 GB, free: 15.91 MB / 0.7917 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.123/1.31, allocations: 77.72 MB / 1.326 GB, free: 2.871 MB / 0.8542 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002424/1.31, allocations: 312.7 kB / 1.326 GB, free: 2.516 MB / 0.8542 GB Notification: Performance of buildModelFMU: Generate platform static: time 4.735/6.044, allocations: 2.969 kB / 1.326 GB, free: 2.516 MB / 0.8542 GB (rm -f Buildings_maint.8.0.x_Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling.pipe ; mkfifo Buildings_maint.8.0.x_Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling.pipe ; head -c 1048576 < Buildings_maint.8.0.x_Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling.pipe >> ../files/Buildings_maint.8.0.x_Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_8_0_x_Buildings_Obsolete_DistrictHeatingCooling_Plants_Validation_LakeWaterHeatExchanger_T_Cooling_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_maint_8_0_x_Buildings_Obsolete_DistrictHeatingCooling_Plants_Validation_LakeWaterHeatExchanger_T_Cooling.fmu > Buildings_maint.8.0.x_Buildings.Obsolete.DistrictHeatingCooling.Plants.Validation.LakeWaterHeatExchanger_T_Cooling.pipe 2>&1)