Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier.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/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-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(BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier,fileNamePrefix="BuildingSystems_BuildingSystems_Fluid_Interfaces_Examples_ReverseFlowHumidifier",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier,fileNamePrefix="BuildingSystems_BuildingSystems_Fluid_Interfaces_Examples_ReverseFlowHumidifier",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 0.0008648/0.0008648, allocations: 97.64 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 0.005763/0.005763, allocations: 170.1 kB / 16.27 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 1.338/1.338, allocations: 223.3 MB / 240.3 MB, free: 5.336 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.001781/0.00178, allocations: 271 kB / 291.7 MB, free: 1.879 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.9127/0.9127, allocations: 169.5 MB / 0.5004 GB, free: 14.12 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0004169/0.0004169, allocations: 13.19 kB / 0.5988 GB, free: 27.83 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1473/0.1477, allocations: 88.55 MB / 0.6852 GB, free: 14.99 MB / 494.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier): time 0.5991/0.7469, allocations: 268.8 MB / 0.9477 GB, free: 2.828 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.02166/0.7686, allocations: 17.28 MB / 0.9646 GB, free: 1.504 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002757/0.7714, allocations: 55.62 kB / 0.9647 GB, free: 1.449 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.002837/0.7743, allocations: 0.9911 MB / 0.9656 GB, free: 464 kB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.007576/0.7819, allocations: 2.932 MB / 0.9685 GB, free: 13.51 MB / 0.6856 GB Notification: Performance of NFTyping.typeClassSections: time 0.005235/0.7871, allocations: 2.013 MB / 0.9705 GB, free: 11.51 MB / 0.6856 GB Notification: Performance of NFFlatten.flatten: time 0.007385/0.7945, allocations: 6.762 MB / 0.9771 GB, free: 4.73 MB / 0.6856 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001946/0.7965, allocations: 1.43 MB / 0.9785 GB, free: 3.27 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005043/0.8015, allocations: 2.059 MB / 0.9805 GB, free: 1.211 MB / 0.6856 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002799/0.8043, allocations: 1.514 MB / 0.982 GB, free: 15.7 MB / 0.7012 GB Notification: Performance of NFPackage.collectConstants: time 0.0001995/0.8045, allocations: 79.98 kB / 0.982 GB, free: 15.62 MB / 0.7012 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006297/0.8108, allocations: 3.394 MB / 0.9853 GB, free: 12.22 MB / 0.7012 GB Notification: Performance of NFScalarize.scalarize: time 0.0007172/0.8116, allocations: 0.6034 MB / 0.9859 GB, free: 11.61 MB / 0.7012 GB Notification: Performance of NFVerifyModel.verify: time 0.00134/0.8129, allocations: 1.001 MB / 0.9869 GB, free: 10.6 MB / 0.7012 GB Notification: Performance of NFConvertDAE.convert: time 0.004946/0.8179, allocations: 3.863 MB / 0.9907 GB, free: 6.727 MB / 0.7012 GB Notification: Performance of FrontEnd - DAE generated: time 4.519e-06/0.8179, allocations: 0 / 0.9907 GB, free: 6.727 MB / 0.7012 GB Notification: Performance of FrontEnd: time 1.463e-06/0.8179, allocations: 0 / 0.9907 GB, free: 6.727 MB / 0.7012 GB Notification: Performance of Transformations before backend: time 2.558e-05/0.8179, allocations: 0 / 0.9907 GB, free: 6.727 MB / 0.7012 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 324 * Number of variables: 324 Notification: Performance of Generate backend data structure: time 0.003322/0.8213, allocations: 2.031 MB / 0.9927 GB, free: 4.629 MB / 0.7012 GB Notification: Performance of prepare preOptimizeDAE: time 4.077e-05/0.8213, allocations: 12.03 kB / 0.9927 GB, free: 4.617 MB / 0.7012 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002214/0.8215, allocations: 194.1 kB / 0.9929 GB, free: 4.418 MB / 0.7012 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00408/0.8256, allocations: 0.6572 MB / 0.9935 GB, free: 3.758 MB / 0.7012 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001873/0.8275, allocations: 1.331 MB / 0.9948 GB, free: 2.371 MB / 0.7012 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.272e-05/0.8276, allocations: 106.5 kB / 0.9949 GB, free: 2.266 MB / 0.7012 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002077/0.8278, allocations: 139.9 kB / 0.995 GB, free: 2.129 MB / 0.7012 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002424/0.8302, allocations: 1.569 MB / 0.9966 GB, free: 0.4922 MB / 0.7012 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.982e-05/0.8303, allocations: 4 kB / 0.9966 GB, free: 500 kB / 0.7012 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001243/0.8304, allocations: 55.94 kB / 0.9966 GB, free: 444 kB / 0.7012 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.148e-05/0.8305, allocations: 50.45 kB / 0.9967 GB, free: 392 kB / 0.7012 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002026/0.8325, allocations: 1.266 MB / 0.9979 GB, free: 15.11 MB / 0.7169 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 0.008134/0.8406, allocations: 7.234 MB / 1.005 GB, free: 7.309 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00104/0.8417, allocations: 0.6622 MB / 1.006 GB, free: 6.641 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004906/0.8422, allocations: 366.8 kB / 1.006 GB, free: 6.281 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00018/0.8424, allocations: 109.8 kB / 1.006 GB, free: 6.156 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.038e-05/0.8424, allocations: 51 kB / 1.006 GB, free: 6.094 MB / 0.7169 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0006432/0.8431, allocations: 151 kB / 1.006 GB, free: 5.945 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=67): time 7.344e-06/0.8431, allocations: 0 / 1.006 GB, free: 5.945 MB / 0.7169 GB Notification: Performance of matching and sorting (n=67): time 0.001702/0.8448, allocations: 1.013 MB / 1.007 GB, free: 4.93 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.501e-05/0.8449, allocations: 59.97 kB / 1.007 GB, free: 4.859 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001522/0.8464, allocations: 1.347 MB / 1.009 GB, free: 3.504 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 7.208e-05/0.8465, allocations: 45.7 kB / 1.009 GB, free: 3.453 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005386/0.847, allocations: 0.7659 MB / 1.009 GB, free: 2.68 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001898/0.8472, allocations: 244.5 kB / 1.01 GB, free: 2.438 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000111/0.8473, allocations: 93.64 kB / 1.01 GB, free: 2.34 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 0.0001174/0.8475, allocations: 345.9 kB / 1.01 GB, free: 1.996 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005098/0.848, allocations: 345.8 kB / 1.01 GB, free: 1.656 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007461/0.8487, allocations: 0.6868 MB / 1.011 GB, free: 0.832 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001196/0.8499, allocations: 0.9528 MB / 1.012 GB, free: 15.79 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.087e-06/0.8499, allocations: 0 / 1.012 GB, free: 15.79 MB / 0.7325 GB Notification: Performance of matching and sorting (n=123) (initialization): time 0.001593/0.8515, allocations: 1.151 MB / 1.013 GB, free: 14.62 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001574/0.8517, allocations: 294.6 kB / 1.013 GB, free: 14.25 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.067e-05/0.8517, allocations: 8 kB / 1.013 GB, free: 14.24 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.064e-05/0.8518, allocations: 12 kB / 1.013 GB, free: 14.23 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008081/0.8526, allocations: 203.7 kB / 1.014 GB, free: 14.03 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.669e-05/0.8526, allocations: 15.94 kB / 1.014 GB, free: 14.02 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001391/0.854, allocations: 153.6 kB / 1.014 GB, free: 13.87 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.2e-05/0.8541, allocations: 40 kB / 1.014 GB, free: 13.83 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 6.452e-06/0.8541, allocations: 4 kB / 1.014 GB, free: 13.82 MB / 0.7325 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001386/0.8555, allocations: 0.9834 MB / 1.015 GB, free: 12.84 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.075e-06/0.8555, allocations: 8 kB / 1.015 GB, free: 12.83 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.39e-05/0.8555, allocations: 12.88 kB / 1.015 GB, free: 12.82 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007541/0.8563, allocations: 211.6 kB / 1.015 GB, free: 12.61 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.207e-05/0.8563, allocations: 16 kB / 1.015 GB, free: 12.6 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001223/0.8575, allocations: 129.4 kB / 1.015 GB, free: 12.47 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.499e-05/0.8576, allocations: 43.98 kB / 1.015 GB, free: 12.43 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 30 * 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 (121): * Single equations (assignments): 119 * Array equations: 2 * 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 0.0006301/0.8582, allocations: 0.4928 MB / 1.016 GB, free: 11.93 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001913/0.8584, allocations: 158.1 kB / 1.016 GB, free: 11.77 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001285/0.8597, allocations: 0.8202 MB / 1.017 GB, free: 10.93 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.073e-06/0.8597, allocations: 11.94 kB / 1.017 GB, free: 10.92 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.921e-06/0.8598, allocations: 4 kB / 1.017 GB, free: 10.92 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0009099/0.8607, allocations: 0.7902 MB / 1.017 GB, free: 10.08 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002987/0.8637, allocations: 2.306 MB / 1.02 GB, free: 7.703 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.85e-06/0.8637, allocations: 4 kB / 1.02 GB, free: 7.699 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007592/0.8644, allocations: 164 kB / 1.02 GB, free: 7.539 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 6.422e-06/0.8645, allocations: 4 kB / 1.02 GB, free: 7.535 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.87e-05/0.8645, allocations: 23.98 kB / 1.02 GB, free: 7.512 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 6.843e-06/0.8645, allocations: 7.938 kB / 1.02 GB, free: 7.504 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.817e-06/0.8645, allocations: 7.984 kB / 1.02 GB, free: 7.496 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00156/0.8661, allocations: 1.253 MB / 1.021 GB, free: 6.207 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004325/0.8665, allocations: 323.2 kB / 1.021 GB, free: 5.871 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001504/0.8667, allocations: 16 kB / 1.021 GB, free: 5.855 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000962/0.8677, allocations: 91.8 kB / 1.021 GB, free: 5.766 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.802e-05/0.8678, allocations: 40.5 kB / 1.022 GB, free: 5.727 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.453e-05/0.8678, allocations: 39.92 kB / 1.022 GB, free: 5.688 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.001086/0.8689, allocations: 0.9083 MB / 1.022 GB, free: 4.781 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.61e-07/0.8689, allocations: 4 kB / 1.022 GB, free: 4.777 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.001785/0.8707, allocations: 0.8456 MB / 1.023 GB, free: 3.93 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 6 (humBac.vol.dynBal.medium.Xi[1],humBac.vol.dynBal.U,humBac.vol.dynBal.m,humFor.vol.dynBal.medium.Xi[1],humFor.vol.dynBal.U,humFor.vol.dynBal.m) * 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 (71): * Single equations (assignments): 71 * 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 Backend phase and start with SimCode phase: time 0.002167/0.8729, allocations: 1.961 MB / 1.025 GB, free: 1.934 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.001893/0.8748, allocations: 1.331 MB / 1.027 GB, free: 0.6055 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 5.811e-06/0.8748, allocations: 7.938 kB / 1.027 GB, free: 0.5977 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.0004323/0.8753, allocations: 355 kB / 1.027 GB, free: 256 kB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004003/0.8793, allocations: 0.8348 MB / 1.028 GB, free: 15.43 MB / 0.7481 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01731/0.8966, allocations: 12.27 MB / 1.04 GB, free: 2.582 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009232/0.8976, allocations: 1.345 MB / 1.041 GB, free: 1.211 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.001744/0.8993, allocations: 416.4 kB / 1.041 GB, free: 0.7969 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007461/0.9001, allocations: 0.6164 MB / 1.042 GB, free: 188 kB / 0.7481 GB Notification: Performance of SimCode: time 4.91e-07/0.9001, allocations: 0 / 1.042 GB, free: 188 kB / 0.7481 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.3485/1.249, allocations: 40.23 MB / 1.081 GB, free: 263.2 MB / 0.7481 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001708/1.249, allocations: 275 kB / 1.082 GB, free: 262.8 MB / 0.7481 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.576/3.825, allocations: 0 / 1.082 GB, free: 262.8 MB / 0.7481 GB (rm -f BuildingSystems_BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_BuildingSystems_BuildingSystems_Fluid_Interfaces_Examples_ReverseFlowHumidifier_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 BuildingSystems_BuildingSystems_Fluid_Interfaces_Examples_ReverseFlowHumidifier.fmu > BuildingSystems_BuildingSystems.Fluid.Interfaces.Examples.ReverseFlowHumidifier.pipe 2>&1)