Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.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.Chillers.Examples.Carnot_y,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Chillers_Examples_Carnot_y",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Chillers.Examples.Carnot_y,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Chillers_Examples_Carnot_y",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 0.008655/0.008655, allocations: 100.1 kB / 15.73 MB, free: 6.008 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002021/0.002021, allocations: 196.1 kB / 16.68 MB, free: 5.93 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.431/1.431, allocations: 222.9 MB / 240.4 MB, free: 15.14 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.8055/0.8055, allocations: 135.1 MB / 425.7 MB, free: 4.121 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001224/0.001224, allocations: 62.16 kB / 0.5851 GB, free: 21.99 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1442/0.1454, allocations: 80.92 MB / 0.6641 GB, free: 6.293 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Chillers.Examples.Carnot_y): time 0.08233/0.2278, allocations: 75.13 MB / 0.7375 GB, free: 10.91 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.3999/0.6278, allocations: 12.71 MB / 0.7499 GB, free: 25.67 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002645/0.6304, allocations: 67.59 kB / 0.75 GB, free: 25.67 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.002989/0.6335, allocations: 0.8645 MB / 0.7508 GB, free: 25.67 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.0093/0.6428, allocations: 2.584 MB / 0.7534 GB, free: 25.64 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.004687/0.6475, allocations: 1.385 MB / 0.7547 GB, free: 25.61 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.01022/0.6578, allocations: 4.399 MB / 0.759 GB, free: 25.61 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003535/0.6614, allocations: 1.438 MB / 0.7604 GB, free: 25.45 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005322/0.6667, allocations: 1.661 MB / 0.762 GB, free: 25.38 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002879/0.6696, allocations: 1.204 MB / 0.7632 GB, free: 25.16 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.000739/0.6704, allocations: 165.5 kB / 0.7634 GB, free: 25.16 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004289/0.6747, allocations: 1.405 MB / 0.7647 GB, free: 25.14 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0009637/0.6757, allocations: 400.2 kB / 0.7651 GB, free: 25.08 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.002553/0.6782, allocations: 0.9048 MB / 0.766 GB, free: 24.84 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.006724/0.685, allocations: 2.875 MB / 0.7688 GB, free: 24.49 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 7.204e-06/0.685, allocations: 0 / 0.7688 GB, free: 24.49 MB / 0.5762 GB Notification: Performance of FrontEnd: time 3.337e-06/0.685, allocations: 1.406 kB / 0.7688 GB, free: 24.49 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 0.0001449/0.6852, allocations: 7.938 kB / 0.7688 GB, free: 24.48 MB / 0.5762 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 240 * Number of variables: 240 Notification: Performance of Generate backend data structure: time 0.006325/0.6915, allocations: 2.077 MB / 0.7708 GB, free: 23.43 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 4.393e-05/0.6916, allocations: 14.11 kB / 0.7709 GB, free: 23.43 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003594/0.6919, allocations: 149 kB / 0.771 GB, free: 23.39 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001195/0.6931, allocations: 231.5 kB / 0.7712 GB, free: 23.3 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003252/0.6964, allocations: 1.526 MB / 0.7727 GB, free: 22.88 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.456e-05/0.6965, allocations: 76.69 kB / 0.7728 GB, free: 22.88 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002449/0.6967, allocations: 99.56 kB / 0.7729 GB, free: 22.88 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002528/0.6993, allocations: 1.099 MB / 0.774 GB, free: 22.74 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.403e-05/0.6993, allocations: 6.094 kB / 0.774 GB, free: 22.74 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001172/0.6995, allocations: 39.62 kB / 0.774 GB, free: 22.74 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.59e-05/0.6995, allocations: 28.56 kB / 0.774 GB, free: 22.73 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002221/0.7017, allocations: 0.8846 MB / 0.7749 GB, free: 22.72 MB / 0.5762 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 0.006958/0.7087, allocations: 4.896 MB / 0.7797 GB, free: 20.34 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001445/0.7102, allocations: 0.6141 MB / 0.7803 GB, free: 20.13 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006985/0.7109, allocations: 356.8 kB / 0.7806 GB, free: 20.02 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004605/0.7114, allocations: 0.8247 MB / 0.7814 GB, free: 19.07 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.981e-05/0.7114, allocations: 42.16 kB / 0.7815 GB, free: 19.02 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=61): time 2.685e-06/0.7114, allocations: 0 / 0.7815 GB, free: 19.02 MB / 0.5762 GB Notification: Performance of matching and sorting (n=61): time 0.006704/0.7181, allocations: 1.681 MB / 0.7831 GB, free: 18.53 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.606e-05/0.7182, allocations: 60.56 kB / 0.7832 GB, free: 18.46 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002065/0.7203, allocations: 1.232 MB / 0.7844 GB, free: 17.95 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.0001278/0.7204, allocations: 38.67 kB / 0.7844 GB, free: 17.91 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004207/0.7208, allocations: 0.6064 MB / 0.785 GB, free: 17.44 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002065/0.721, allocations: 213.8 kB / 0.7852 GB, free: 17.27 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002649/0.7213, allocations: 154.2 kB / 0.7853 GB, free: 17.2 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 5.248e-05/0.7214, allocations: 335.1 kB / 0.7857 GB, free: 16.88 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006107/0.722, allocations: 290.9 kB / 0.7859 GB, free: 16.78 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007398/0.7227, allocations: 498.3 kB / 0.7864 GB, free: 16.47 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001304/0.7241, allocations: 0.704 MB / 0.7871 GB, free: 16.11 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.382e-06/0.7241, allocations: 5.375 kB / 0.7871 GB, free: 16.11 MB / 0.5762 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.004519/0.7286, allocations: 1.281 MB / 0.7883 GB, free: 15.51 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 2.18e-05/0.7286, allocations: 7.531 kB / 0.7884 GB, free: 15.51 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.096e-05/0.7287, allocations: 4.125 kB / 0.7884 GB, free: 15.51 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005972/0.7293, allocations: 138.3 kB / 0.7885 GB, free: 15.44 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006608/0.7299, allocations: 155.2 kB / 0.7886 GB, free: 15.41 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007578/0.7307, allocations: 0.6997 MB / 0.7893 GB, free: 14.8 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001303/0.732, allocations: 117.3 kB / 0.7894 GB, free: 14.73 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001029/0.7321, allocations: 30.3 kB / 0.7895 GB, free: 14.72 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001093/0.7332, allocations: 0.5586 MB / 0.79 GB, free: 14.38 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007109/0.734, allocations: 493.5 kB / 0.7905 GB, free: 14 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00122/0.7352, allocations: 0.7017 MB / 0.7912 GB, free: 13.58 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.61e-06/0.7352, allocations: 2.688 kB / 0.7912 GB, free: 13.58 MB / 0.5762 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.004295/0.7395, allocations: 1.267 MB / 0.7924 GB, free: 12.98 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.363e-05/0.7395, allocations: 5.656 kB / 0.7924 GB, free: 12.98 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.793e-06/0.7395, allocations: 5.328 kB / 0.7924 GB, free: 12.98 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004683/0.74, allocations: 136 kB / 0.7925 GB, free: 12.91 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005836/0.7406, allocations: 157.9 kB / 0.7927 GB, free: 12.88 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000632/0.7413, allocations: 0.7013 MB / 0.7934 GB, free: 12.27 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001185/0.7425, allocations: 92.23 kB / 0.7935 GB, free: 12.21 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.141e-05/0.7425, allocations: 33.38 kB / 0.7935 GB, free: 12.2 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * 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 (79): * Single equations (assignments): 78 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,9)} Notification: Performance of prepare postOptimizeDAE: time 0.0002139/0.7428, allocations: 228.7 kB / 0.7937 GB, free: 11.99 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003623/0.7431, allocations: 138.4 kB / 0.7939 GB, free: 11.92 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00414/0.7473, allocations: 1.264 MB / 0.7951 GB, free: 11.23 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.949e-05/0.7473, allocations: 7.188 kB / 0.7951 GB, free: 11.23 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.155e-06/0.7473, allocations: 0 / 0.7951 GB, free: 11.23 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003557/0.7509, allocations: 1.104 MB / 0.7962 GB, free: 10.6 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006318/0.7572, allocations: 2.615 MB / 0.7987 GB, free: 8.844 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.468e-06/0.7573, allocations: 2.906 kB / 0.7987 GB, free: 8.844 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004609/0.7577, allocations: 118.6 kB / 0.7988 GB, free: 8.816 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006176/0.7584, allocations: 131.4 kB / 0.799 GB, free: 8.754 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.593e-05/0.7585, allocations: 19.09 kB / 0.799 GB, free: 8.742 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004422/0.7629, allocations: 2.578 MB / 0.8015 GB, free: 6.57 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.712e-06/0.7629, allocations: 12.91 kB / 0.8015 GB, free: 6.562 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004809/0.7677, allocations: 1.696 MB / 0.8032 GB, free: 5.559 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0007406/0.7685, allocations: 308.5 kB / 0.8035 GB, free: 5.293 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003916/0.7689, allocations: 17.22 kB / 0.8035 GB, free: 5.285 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001012/0.7699, allocations: 58.98 kB / 0.8035 GB, free: 5.254 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001252/0.7701, allocations: 59.47 kB / 0.8036 GB, free: 5.223 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.419e-05/0.7702, allocations: 29.73 kB / 0.8036 GB, free: 5.215 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.001286/0.7714, allocations: 0.8812 MB / 0.8045 GB, free: 4.723 MB / 0.5762 GB Notification: Performance of sort global known variables: time 3.11e-07/0.7715, allocations: 4.281 kB / 0.8045 GB, free: 4.719 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.002459/0.7739, allocations: 0.7165 MB / 0.8052 GB, free: 4.57 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 2 (chi.con.vol.dynBal.U,chi.eva.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 (56): * Single equations (assignments): 51 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,9)} Notification: Performance of Backend phase and start with SimCode phase: time 0.00574/0.7797, allocations: 2.586 MB / 0.8077 GB, free: 2.293 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.002382/0.7821, allocations: 1.114 MB / 0.8088 GB, free: 1.219 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 8.285e-06/0.7821, allocations: 8 kB / 0.8088 GB, free: 1.211 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.001259/0.7834, allocations: 0.5577 MB / 0.8094 GB, free: 0.6484 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004015/0.7874, allocations: 0.7985 MB / 0.8101 GB, free: 15.86 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02314/0.8106, allocations: 9.8 MB / 0.8197 GB, free: 5.816 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008435/0.8114, allocations: 1.172 MB / 0.8208 GB, free: 4.617 MB / 0.5919 GB Notification: Performance of simCode: alias equations: time 0.001257/0.8127, allocations: 311 kB / 0.8211 GB, free: 4.309 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007758/0.8135, allocations: 0.5071 MB / 0.8216 GB, free: 3.801 MB / 0.5919 GB Notification: Performance of SimCode: time 9.62e-07/0.8135, allocations: 0 / 0.8216 GB, free: 3.801 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.08825/0.9018, allocations: 42.39 MB / 0.863 GB, free: 9.863 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.72/14.63, allocations: 29.52 kB / 0.8631 GB, free: 9.84 MB / 0.6387 GB (rm -f IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_dev_IDEAS_Fluid_Chillers_Examples_Carnot_y_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 IDEAS_dev_IDEAS_Fluid_Chillers_Examples_Carnot_y.fmu > IDEAS_dev_IDEAS.Fluid.Chillers.Examples.Carnot_y.pipe 2>&1)