Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.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-master/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-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(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_HeatExchangers_Examples_WaterHeater_T",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_HeatExchangers_Examples_WaterHeater_T",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 0.0009018/0.0009019, allocations: 97.33 kB / 15.36 MB, free: 0.7344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.005012/0.005012, allocations: 169.5 kB / 16.26 MB, free: 6.652 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.282/1.282, allocations: 223.3 MB / 240.3 MB, free: 5.352 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.8929/0.8929, allocations: 135.3 MB / 426.7 MB, free: 14.34 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.000272/0.000272, allocations: 8.969 kB / 0.5077 GB, free: 4.676 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1236/0.1239, allocations: 82.3 MB / 0.5881 GB, free: 2.543 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T): time 0.251/0.3749, allocations: 51.85 MB / 0.6387 GB, free: 22.91 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.01361/0.3885, allocations: 15.11 MB / 0.6535 GB, free: 12.15 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001246/0.3898, allocations: 79.06 kB / 0.6535 GB, free: 12.12 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.001704/0.3915, allocations: 0.9435 MB / 0.6545 GB, free: 11.63 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 0.00315/0.3947, allocations: 2.152 MB / 0.6566 GB, free: 10.39 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.003176/0.3979, allocations: 1.999 MB / 0.6585 GB, free: 9.309 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.004151/0.402, allocations: 5.998 MB / 0.6644 GB, free: 7.07 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001484/0.4035, allocations: 1.357 MB / 0.6657 GB, free: 6.5 MB / 0.4981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002225/0.4057, allocations: 1.616 MB / 0.6673 GB, free: 5.797 MB / 0.4981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001291/0.407, allocations: 1.301 MB / 0.6685 GB, free: 5.246 MB / 0.4981 GB Notification: Performance of NFPackage.collectConstants: time 0.0001538/0.4072, allocations: 65.84 kB / 0.6686 GB, free: 5.246 MB / 0.4981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0026/0.4098, allocations: 1.711 MB / 0.6703 GB, free: 4.684 MB / 0.4981 GB Notification: Performance of NFScalarize.scalarize: time 0.0003657/0.4102, allocations: 426.6 kB / 0.6707 GB, free: 4.492 MB / 0.4981 GB Notification: Performance of NFVerifyModel.verify: time 0.0006856/0.4109, allocations: 0.9329 MB / 0.6716 GB, free: 3.914 MB / 0.4981 GB Notification: Performance of NFConvertDAE.convert: time 0.003001/0.4139, allocations: 3.165 MB / 0.6747 GB, free: 2.922 MB / 0.4981 GB Notification: Performance of FrontEnd - DAE generated: time 3.226e-06/0.4139, allocations: 0 / 0.6747 GB, free: 2.922 MB / 0.4981 GB Notification: Performance of FrontEnd: time 1.232e-06/0.4139, allocations: 0 / 0.6747 GB, free: 2.922 MB / 0.4981 GB Notification: Performance of Transformations before backend: time 1.956e-05/0.4139, allocations: 1.406 kB / 0.6747 GB, free: 2.922 MB / 0.4981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 281 * Number of variables: 281 Notification: Performance of Generate backend data structure: time 0.003001/0.4169, allocations: 2.176 MB / 0.6768 GB, free: 1.508 MB / 0.4981 GB Notification: Performance of prepare preOptimizeDAE: time 3.317e-05/0.417, allocations: 9.469 kB / 0.6768 GB, free: 1.508 MB / 0.4981 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000171/0.4172, allocations: 164.7 kB / 0.677 GB, free: 1.398 MB / 0.4981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0018/0.419, allocations: 492.5 kB / 0.6774 GB, free: 1.262 MB / 0.4981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002358/0.4213, allocations: 1.653 MB / 0.6791 GB, free: 348 kB / 0.4981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003298/0.4217, allocations: 163.3 kB / 0.6792 GB, free: 292 kB / 0.4981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001549/0.4218, allocations: 116.4 kB / 0.6793 GB, free: 256 kB / 0.4981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00234/0.4242, allocations: 1.365 MB / 0.6807 GB, free: 15.6 MB / 0.5137 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.709e-05/0.4242, allocations: 10.03 kB / 0.6807 GB, free: 15.59 MB / 0.5137 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001052/0.4243, allocations: 51.92 kB / 0.6807 GB, free: 15.55 MB / 0.5137 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.146e-05/0.4244, allocations: 45.53 kB / 0.6808 GB, free: 15.54 MB / 0.5137 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002487/0.4269, allocations: 1.132 MB / 0.6819 GB, free: 15.17 MB / 0.5137 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 0.007906/0.4348, allocations: 6.992 MB / 0.6887 GB, free: 9.902 MB / 0.5137 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002317/0.4371, allocations: 1.422 MB / 0.6901 GB, free: 8.996 MB / 0.5137 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009171/0.438, allocations: 451.2 kB / 0.6905 GB, free: 8.848 MB / 0.5137 GB Notification: Performance of preOpt evalFunc (simulation): time 0.004454/0.4425, allocations: 3.138 MB / 0.6936 GB, free: 6.375 MB / 0.5137 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0009671/0.4435, allocations: 464.5 kB / 0.694 GB, free: 6.211 MB / 0.5137 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0003072/0.4438, allocations: 76.95 kB / 0.6941 GB, free: 6.172 MB / 0.5137 GB Notification: Performance of pre-optimization done (n=61): time 2.084e-06/0.4438, allocations: 0 / 0.6941 GB, free: 6.172 MB / 0.5137 GB Notification: Performance of matching and sorting (n=61): time 0.002874/0.4467, allocations: 1.279 MB / 0.6953 GB, free: 5.652 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.205e-05/0.4468, allocations: 59.91 kB / 0.6954 GB, free: 5.59 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001721/0.4485, allocations: 1.517 MB / 0.6969 GB, free: 4.938 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 8.228e-05/0.4486, allocations: 47.02 kB / 0.6969 GB, free: 4.891 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006338/0.4492, allocations: 0.8822 MB / 0.6978 GB, free: 4.109 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001815/0.4494, allocations: 221.1 kB / 0.698 GB, free: 3.918 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001159/0.4495, allocations: 90.5 kB / 0.6981 GB, free: 3.855 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0001154/0.4496, allocations: 343.1 kB / 0.6984 GB, free: 3.523 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000913/0.4506, allocations: 391.2 kB / 0.6988 GB, free: 3.348 MB / 0.5137 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001149/0.4517, allocations: 0.776 MB / 0.6995 GB, free: 2.652 MB / 0.5137 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002015/0.4538, allocations: 1.161 MB / 0.7007 GB, free: 1.797 MB / 0.5137 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.302e-06/0.4538, allocations: 2.344 kB / 0.7007 GB, free: 1.797 MB / 0.5137 GB Notification: Performance of matching and sorting (n=123) (initialization): time 0.002518/0.4563, allocations: 1.343 MB / 0.702 GB, free: 1.121 MB / 0.5137 GB Notification: Performance of prepare postOptimizeDAE: time 0.000236/0.4565, allocations: 435.8 kB / 0.7024 GB, free: 0.5586 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.1e-05/0.4566, allocations: 12.84 kB / 0.7024 GB, free: 0.5586 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.184e-05/0.4566, allocations: 16.62 kB / 0.7024 GB, free: 0.5586 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009326/0.4575, allocations: 270.5 kB / 0.7027 GB, free: 0.4922 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.943e-05/0.4576, allocations: 28.3 kB / 0.7027 GB, free: 492 kB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009735/0.4585, allocations: 123.2 kB / 0.7028 GB, free: 440 kB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.036e-05/0.4586, allocations: 52.89 kB / 0.7029 GB, free: 428 kB / 0.5137 GB Notification: Performance of prepare postOptimizeDAE: time 6.322e-06/0.4587, allocations: 4.312 kB / 0.7029 GB, free: 428 kB / 0.5137 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002267/0.4609, allocations: 1.139 MB / 0.704 GB, free: 15.86 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.391e-05/0.461, allocations: 19.31 kB / 0.704 GB, free: 15.85 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.419e-05/0.461, allocations: 19.78 kB / 0.704 GB, free: 15.85 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008825/0.4619, allocations: 266.8 kB / 0.7043 GB, free: 15.78 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.549e-05/0.4619, allocations: 23.73 kB / 0.7043 GB, free: 15.77 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009024/0.4628, allocations: 126.1 kB / 0.7044 GB, free: 15.72 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.607e-05/0.4629, allocations: 54.2 kB / 0.7045 GB, free: 15.71 MB / 0.5294 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 49 * Number of states: 0 () * Number of discrete variables: 6 (TSet.count,$PRE.TSet.count,TSet.T_start,$PRE.TSet.T_start,$whenCondition1,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (121): * Single equations (assignments): 119 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0005375/0.4634, allocations: 474 kB / 0.7049 GB, free: 15.35 MB / 0.5294 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001802/0.4636, allocations: 164.4 kB / 0.7051 GB, free: 15.26 MB / 0.5294 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002446/0.4661, allocations: 1.161 MB / 0.7062 GB, free: 14.64 MB / 0.5294 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.403e-05/0.4661, allocations: 6.875 kB / 0.7062 GB, free: 14.64 MB / 0.5294 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.741e-06/0.4661, allocations: 1.375 kB / 0.7062 GB, free: 14.64 MB / 0.5294 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001857/0.468, allocations: 0.9999 MB / 0.7072 GB, free: 14.03 MB / 0.5294 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 postOpt removeSimpleEquations (simulation): time 0.003907/0.4719, allocations: 2.452 MB / 0.7096 GB, free: 12.43 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.206e-06/0.4719, allocations: 0 / 0.7096 GB, free: 12.43 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006866/0.4726, allocations: 161.8 kB / 0.7098 GB, free: 12.39 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001294/0.4727, allocations: 37.66 kB / 0.7098 GB, free: 12.36 MB / 0.5294 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.841e-05/0.4728, allocations: 21.42 kB / 0.7098 GB, free: 12.35 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008375/0.4736, allocations: 1.314 MB / 0.7111 GB, free: 10.99 MB / 0.5294 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.372e-06/0.4736, allocations: 3.938 kB / 0.7111 GB, free: 10.99 MB / 0.5294 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002852/0.4765, allocations: 1.61 MB / 0.7127 GB, free: 10.12 MB / 0.5294 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000436/0.4769, allocations: 342.3 kB / 0.713 GB, free: 9.828 MB / 0.5294 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002081/0.4772, allocations: 15.34 kB / 0.713 GB, free: 9.816 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000893/0.4781, allocations: 116.6 kB / 0.7131 GB, free: 9.766 MB / 0.5294 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001008/0.4782, allocations: 58.17 kB / 0.7132 GB, free: 9.734 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.55e-05/0.4782, allocations: 33.14 kB / 0.7132 GB, free: 9.723 MB / 0.5294 GB Notification: Performance of sorting global known variables: time 0.001172/0.4794, allocations: 1.086 MB / 0.7143 GB, free: 8.883 MB / 0.5294 GB Notification: Performance of sort global known variables: time 1.5e-07/0.4794, allocations: 0 / 0.7143 GB, free: 8.883 MB / 0.5294 GB Notification: Performance of remove unused functions: time 0.00211/0.4815, allocations: 0.8615 MB / 0.7151 GB, free: 8.02 MB / 0.5294 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 6 (vol.dynBal.U,mov.filter.s[1],mov.filter.s[2],conPI.I.y,THeaOut.T,hea.outCon.T) * Number of discrete variables: 3 ($whenCondition1,TSet.T_start,TSet.count) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (71): * Single equations (assignments): 62 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 6 * When equations: 2 * 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): 1 system {(1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.004559/0.4861, allocations: 2.766 MB / 0.7178 GB, free: 5.375 MB / 0.5294 GB Notification: Performance of simCode: created initialization part: time 0.003062/0.4892, allocations: 1.652 MB / 0.7194 GB, free: 3.703 MB / 0.5294 GB Notification: Performance of simCode: created event and clocks part: time 2.334e-06/0.4892, allocations: 0 / 0.7194 GB, free: 3.703 MB / 0.5294 GB Notification: Performance of simCode: created simulation system equations: time 0.001059/0.4903, allocations: 0.5583 MB / 0.72 GB, free: 3.133 MB / 0.5294 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003016/0.4933, allocations: 0.7187 MB / 0.7207 GB, free: 2.414 MB / 0.5294 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01954/0.5128, allocations: 13.6 MB / 0.734 GB, free: 3.859 MB / 0.545 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007923/0.5136, allocations: 1.356 MB / 0.7353 GB, free: 2.477 MB / 0.545 GB Notification: Performance of simCode: alias equations: time 0.001403/0.515, allocations: 422 kB / 0.7357 GB, free: 2.059 MB / 0.545 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008031/0.5159, allocations: 0.7101 MB / 0.7364 GB, free: 1.348 MB / 0.545 GB Notification: Performance of SimCode: time 3.61e-07/0.5159, allocations: 0 / 0.7364 GB, free: 1.348 MB / 0.545 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.7419/1.258, allocations: 42.79 MB / 0.7782 GB, free: 7.105 MB / 0.5919 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0003416/1.258, allocations: 258.8 kB / 0.7784 GB, free: 6.785 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.922/4.18, allocations: 3.5 kB / 0.7784 GB, free: 6.785 MB / 0.5919 GB (rm -f IDEAS_dev_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_dev_IDEAS_Fluid_HeatExchangers_Examples_WaterHeater_T_fmu --startTime=0 --stopTime=172800 --timeout=50 --tolerance=1e-06 IDEAS_dev_IDEAS_Fluid_HeatExchangers_Examples_WaterHeater_T.fmu > IDEAS_dev_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_T.pipe 2>&1)