Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.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.Humidifiers.Validation.SprayAirWasher_X,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X",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 0.001096/0.001096, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001157/0.001157, allocations: 193.6 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.321/1.321, allocations: 222.9 MB / 240.2 MB, free: 4.406 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.9091/0.9091, allocations: 135.1 MB / 425.5 MB, free: 11.88 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.00132/0.00132, allocations: 68.92 kB / 0.5054 GB, free: 5.234 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1269/0.1282, allocations: 80.92 MB / 0.5845 GB, free: 4.473 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X): time 0.3809/0.5092, allocations: 180.3 MB / 0.7605 GB, free: 8.613 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.005868/0.5151, allocations: 3.739 MB / 0.7642 GB, free: 4.863 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004188/0.5155, allocations: 27.81 kB / 0.7642 GB, free: 4.836 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.0009823/0.5165, allocations: 433.5 kB / 0.7646 GB, free: 4.41 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.002517/0.5191, allocations: 1.245 MB / 0.7658 GB, free: 3.16 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.001584/0.5206, allocations: 0.7405 MB / 0.7666 GB, free: 2.426 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.001318/0.522, allocations: 1.349 MB / 0.7679 GB, free: 1.074 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0005862/0.5226, allocations: 489.3 kB / 0.7684 GB, free: 0.5977 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001993/0.5246, allocations: 0.9711 MB / 0.7693 GB, free: 15.63 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005153/0.5251, allocations: 458.1 kB / 0.7697 GB, free: 15.18 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 7.253e-05/0.5252, allocations: 40 kB / 0.7698 GB, free: 15.14 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001747/0.5269, allocations: 1.189 MB / 0.7709 GB, free: 13.95 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0001887/0.5271, allocations: 199.3 kB / 0.7711 GB, free: 13.75 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.0003102/0.5275, allocations: 326.2 kB / 0.7714 GB, free: 13.43 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.00145/0.5289, allocations: 1.18 MB / 0.7726 GB, free: 12.25 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 3.337e-06/0.5289, allocations: 3.938 kB / 0.7726 GB, free: 12.25 MB / 0.5919 GB Notification: Performance of FrontEnd: time 1.142e-06/0.5289, allocations: 0 / 0.7726 GB, free: 12.25 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 1.251e-05/0.529, allocations: 0 / 0.7726 GB, free: 12.25 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: 97 * Number of variables: 97 Notification: Performance of Generate backend data structure: time 0.001895/0.5309, allocations: 1.047 MB / 0.7736 GB, free: 11.16 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 3.437e-05/0.5309, allocations: 16.03 kB / 0.7736 GB, free: 11.14 MB / 0.5919 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.483e-05/0.531, allocations: 74.53 kB / 0.7737 GB, free: 11.06 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001313/0.5323, allocations: 215 kB / 0.7739 GB, free: 10.85 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007198/0.533, allocations: 0.5381 MB / 0.7744 GB, free: 10.27 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.033e-05/0.5331, allocations: 29 kB / 0.7745 GB, free: 10.24 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.72e-05/0.5332, allocations: 43.98 kB / 0.7745 GB, free: 10.2 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000996/0.5342, allocations: 0.531 MB / 0.775 GB, free: 9.652 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.456e-05/0.5342, allocations: 3.938 kB / 0.775 GB, free: 9.648 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.683e-05/0.5342, allocations: 20 kB / 0.775 GB, free: 9.629 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.603e-05/0.5343, allocations: 21 kB / 0.7751 GB, free: 9.609 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001171/0.5355, allocations: 0.5035 MB / 0.7756 GB, free: 9.105 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 0.003024/0.5385, allocations: 2.227 MB / 0.7777 GB, free: 6.691 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007356/0.5392, allocations: 354.5 kB / 0.7781 GB, free: 6.32 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002196/0.5395, allocations: 136.8 kB / 0.7782 GB, free: 6.184 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001293/0.5408, allocations: 0.8415 MB / 0.779 GB, free: 5.176 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0002989/0.5411, allocations: 192.9 kB / 0.7792 GB, free: 4.969 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=26): time 1.904e-06/0.5411, allocations: 0 / 0.7792 GB, free: 4.969 MB / 0.5919 GB Notification: Performance of matching and sorting (n=26): time 0.0009504/0.542, allocations: 439.8 kB / 0.7796 GB, free: 4.535 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.366e-05/0.5421, allocations: 81.11 kB / 0.7797 GB, free: 4.438 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0008075/0.5429, allocations: 0.6485 MB / 0.7803 GB, free: 3.777 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 3.031e-05/0.543, allocations: 33.7 kB / 0.7804 GB, free: 3.738 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.000218/0.5432, allocations: 331.7 kB / 0.7807 GB, free: 3.41 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 6.618e-05/0.5433, allocations: 86.75 kB / 0.7808 GB, free: 3.324 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001279/0.5434, allocations: 77.59 kB / 0.7808 GB, free: 3.242 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0001327/0.5435, allocations: 378.7 kB / 0.7812 GB, free: 2.863 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003683/0.5439, allocations: 132.8 kB / 0.7813 GB, free: 2.73 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004449/0.5444, allocations: 281 kB / 0.7816 GB, free: 2.395 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006142/0.545, allocations: 383.1 kB / 0.782 GB, free: 1.965 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.976e-06/0.545, allocations: 0 / 0.782 GB, free: 1.965 MB / 0.5919 GB Notification: Performance of matching and sorting (n=43) (initialization): time 0.000984/0.546, allocations: 478.2 kB / 0.7824 GB, free: 1.492 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 1.439e-05/0.546, allocations: 4 kB / 0.7824 GB, free: 1.488 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.695e-06/0.546, allocations: 4.469 kB / 0.7824 GB, free: 1.484 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.569e-05/0.546, allocations: 12 kB / 0.7824 GB, free: 1.473 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004023/0.5464, allocations: 79.89 kB / 0.7825 GB, free: 1.395 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.423e-05/0.5465, allocations: 19.86 kB / 0.7825 GB, free: 1.375 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005598/0.547, allocations: 71.56 kB / 0.7826 GB, free: 1.305 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.816e-05/0.5471, allocations: 23.92 kB / 0.7826 GB, free: 1.281 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005012/0.5476, allocations: 298.4 kB / 0.7829 GB, free: 0.9883 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004333/0.548, allocations: 274.9 kB / 0.7832 GB, free: 0.6602 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.000597/0.5486, allocations: 384.6 kB / 0.7835 GB, free: 236 kB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.094e-06/0.5487, allocations: 0 / 0.7835 GB, free: 236 kB / 0.5919 GB Notification: Performance of matching and sorting (n=43) (initialization_lambda0): time 0.0009644/0.5496, allocations: 474.1 kB / 0.784 GB, free: 15.76 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 9.699e-06/0.5496, allocations: 8 kB / 0.784 GB, free: 15.75 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.62e-06/0.5497, allocations: 4 kB / 0.784 GB, free: 15.75 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.41e-06/0.5497, allocations: 4.344 kB / 0.784 GB, free: 15.74 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003912/0.5501, allocations: 95.77 kB / 0.7841 GB, free: 15.65 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.133e-06/0.5501, allocations: 11.92 kB / 0.7841 GB, free: 15.64 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005451/0.5506, allocations: 75.2 kB / 0.7842 GB, free: 15.57 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.569e-05/0.5507, allocations: 20.86 kB / 0.7842 GB, free: 15.55 MB / 0.6075 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * Number of states: 0 () * Number of discrete variables: 5 ($PRE.XSet.nextTimeEvent,$whenCondition1,XSet.nextTimeEventScaled,$PRE.XSet.nextTimeEventScaled,XSet.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (43): * Single equations (assignments): 43 * Array equations: 0 * Algorithm blocks: 0 * 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 0.0001252/0.5508, allocations: 201.5 kB / 0.7844 GB, free: 15.34 MB / 0.6075 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 7.726e-05/0.5509, allocations: 59.25 kB / 0.7844 GB, free: 15.29 MB / 0.6075 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005756/0.5515, allocations: 324.6 kB / 0.7848 GB, free: 14.95 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.712e-06/0.5515, allocations: 4 kB / 0.7848 GB, free: 14.95 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.741e-06/0.5515, allocations: 3.938 kB / 0.7848 GB, free: 14.94 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.449e-06/0.5515, allocations: 0 / 0.7848 GB, free: 14.94 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001375/0.5529, allocations: 1.092 MB / 0.7858 GB, free: 13.76 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.876e-06/0.5529, allocations: 0 / 0.7858 GB, free: 13.76 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001848/0.5531, allocations: 43.92 kB / 0.7859 GB, free: 13.72 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.779e-06/0.5531, allocations: 4 kB / 0.7859 GB, free: 13.71 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.938e-05/0.5531, allocations: 4.312 kB / 0.7859 GB, free: 13.71 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.047e-06/0.5531, allocations: 8 kB / 0.7859 GB, free: 13.7 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.156e-06/0.5531, allocations: 4 kB / 0.7859 GB, free: 13.7 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005441/0.5537, allocations: 478.6 kB / 0.7863 GB, free: 13.19 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001585/0.5539, allocations: 160.3 kB / 0.7865 GB, free: 13.01 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.055e-05/0.554, allocations: 8 kB / 0.7865 GB, free: 13 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003377/0.5543, allocations: 19.98 kB / 0.7865 GB, free: 12.98 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.967e-05/0.5544, allocations: 27.84 kB / 0.7866 GB, free: 12.96 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.105e-05/0.5544, allocations: 12 kB / 0.7866 GB, free: 12.95 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.0006165/0.555, allocations: 479 kB / 0.787 GB, free: 12.48 MB / 0.6075 GB Notification: Performance of sort global known variables: time 2.1e-07/0.555, allocations: 3.938 kB / 0.787 GB, free: 12.48 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.0008175/0.5558, allocations: 267.5 kB / 0.7873 GB, free: 12.21 MB / 0.6075 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of discrete states: 2 (XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (25): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.00179/0.5576, allocations: 1.418 MB / 0.7887 GB, free: 10.94 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.001128/0.5588, allocations: 0.5099 MB / 0.7892 GB, free: 10.43 MB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 2.565e-06/0.5588, allocations: 0 / 0.7892 GB, free: 10.43 MB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.0002095/0.559, allocations: 123.8 kB / 0.7893 GB, free: 10.31 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001292/0.5603, allocations: 290.7 kB / 0.7896 GB, free: 10.04 MB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006151/0.5665, allocations: 4.784 MB / 0.7942 GB, free: 5.027 MB / 0.6075 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004695/0.567, allocations: 0.8977 MB / 0.7951 GB, free: 4.102 MB / 0.6075 GB Notification: Performance of simCode: alias equations: time 0.0006572/0.5676, allocations: 164.8 kB / 0.7953 GB, free: 3.938 MB / 0.6075 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000274/0.5679, allocations: 195.4 kB / 0.7954 GB, free: 3.746 MB / 0.6075 GB Notification: Performance of SimCode: time 4.61e-07/0.5679, allocations: 0 / 0.7954 GB, free: 3.746 MB / 0.6075 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03391/0.6018, allocations: 15.64 MB / 0.8107 GB, free: 4.328 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate platform static: time 7.368/7.97, allocations: 3.625 kB / 0.8107 GB, free: 4.328 MB / 0.6231 GB (rm -f IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.sim & python3 -m fmpy simulate --output-file IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X_res.csv --start-time 0 --stop-time 1080 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.432 IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X.fmu > IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe 2>&1)