Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Modelica_3.2.3_cpp_Modelica.Fluid.Examples.IncompressibleFluidNetwork.conf.json 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) Running command: "" <> buildModelFMU(Modelica.Fluid.Examples.IncompressibleFluidNetwork,fileNamePrefix="Modelica_3_2_3_cpp_Modelica_Fluid_Examples_IncompressibleFluidNetwork",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Modelica.Fluid.Examples.IncompressibleFluidNetwork,fileNamePrefix="Modelica_3_2_3_cpp_Modelica_Fluid_Examples_IncompressibleFluidNetwork",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.0008039/0.0008039, allocations: 170.3 kB / 16.72 MB, free: 5.051 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.108/1.108, allocations: 205.4 MB / 222.9 MB, free: 9.02 MB / 186.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0007047/0.0007044, allocations: 90.31 kB / 271.2 MB, free: 8.246 MB / 218.7 MB Notification: Performance of FrontEnd - loaded program: time 0.0002663/0.0002664, allocations: 16 kB / 327.6 MB, free: 15.8 MB / 282.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1712/0.1715, allocations: 47.57 MB / 375.2 MB, free: 45.41 MB / 298.7 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.IncompressibleFluidNetwork): time 0.3233/0.4948, allocations: 195.8 MB / 0.5576 GB, free: 4.258 MB / 378.7 MB Notification: Performance of NFInst.instExpressions: time 0.05555/0.5504, allocations: 43.06 MB / 0.5997 GB, free: 9.02 MB / 410.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.007761/0.5582, allocations: 285.8 kB / 0.5999 GB, free: 8.738 MB / 410.7 MB Notification: Performance of NFTyping.typeComponents: time 0.006631/0.5649, allocations: 1.844 MB / 0.6017 GB, free: 6.887 MB / 410.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:734:36-735:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:732:36-733:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:734:36-735:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:732:36-733:54:writable] Warning: 'each' used when modifying non-array element m_flow. Notification: Performance of NFTyping.typeBindings: time 0.03406/0.599, allocations: 14.06 MB / 0.6155 GB, free: 8.789 MB / 426.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.03117/0.6301, allocations: 12.79 MB / 0.628 GB, free: 11.98 MB / 442.7 MB Notification: Performance of NFFlatten.flatten: time 0.02804/0.6582, allocations: 26.19 MB / 0.6535 GB, free: 1.715 MB / 458.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.009094/0.6673, allocations: 4.902 MB / 0.6583 GB, free: 12.76 MB / 474.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.2412/0.9086, allocations: 14.86 MB / 0.6728 GB, free: 12.73 MB / 474.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.02065/0.9293, allocations: 15.15 MB / 0.6876 GB, free: 12.71 MB / 474.7 MB Notification: Performance of NFPackage.collectConstants: time 0.003578/0.9329, allocations: 382.8 kB / 0.688 GB, free: 12.71 MB / 474.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.02398/0.9569, allocations: 11.34 MB / 0.6991 GB, free: 12.66 MB / 474.7 MB Notification: Performance of NFScalarize.scalarize: time 0.006438/0.9634, allocations: 3.088 MB / 0.7021 GB, free: 12.65 MB / 474.7 MB Notification: Performance of NFVerifyModel.verify: time 0.009778/0.9732, allocations: 3.819 MB / 0.7058 GB, free: 12.62 MB / 474.7 MB Notification: Performance of NFConvertDAE.convert: time 0.02094/0.9941, allocations: 12.51 MB / 0.718 GB, free: 12.2 MB / 474.7 MB Notification: Performance of FrontEnd - DAE generated: time 6.722e-06/0.9942, allocations: 0 / 0.718 GB, free: 12.2 MB / 474.7 MB Notification: Performance of FrontEnd: time 2.474e-06/0.9942, allocations: 0 / 0.718 GB, free: 12.2 MB / 474.7 MB Notification: Performance of Transformations before backend: time 0.0004476/0.9947, allocations: 4 kB / 0.718 GB, free: 12.19 MB / 474.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1492 * Number of variables: 1492 Notification: Performance of Generate backend data structure: time 0.02044/1.015, allocations: 7.996 MB / 0.7258 GB, free: 8.645 MB / 474.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.827e-05/1.015, allocations: 10.69 kB / 0.7259 GB, free: 8.645 MB / 474.7 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002479/1.018, allocations: 0.7834 MB / 0.7266 GB, free: 8.57 MB / 474.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008061/1.026, allocations: 1.284 MB / 0.7279 GB, free: 8.16 MB / 474.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01014/1.036, allocations: 5.905 MB / 0.7336 GB, free: 5.996 MB / 474.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003165/1.036, allocations: 426.1 kB / 0.734 GB, free: 5.984 MB / 474.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001401/1.038, allocations: 0.5417 MB / 0.7346 GB, free: 5.973 MB / 474.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01487/1.053, allocations: 9.404 MB / 0.7438 GB, free: 2.137 MB / 474.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 9.204e-05/1.053, allocations: 24.17 kB / 0.7438 GB, free: 2.125 MB / 474.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000698/1.053, allocations: 244 kB / 0.744 GB, free: 2.059 MB / 474.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006533/1.054, allocations: 0.699 MB / 0.7447 GB, free: 1.445 MB / 474.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01629/1.07, allocations: 8.21 MB / 0.7527 GB, free: 11.9 MB / 490.7 MB 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 0.05254/1.123, allocations: 39.76 MB / 0.7915 GB, free: 8.75 MB / 0.5105 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01018/1.133, allocations: 6.215 MB / 0.7976 GB, free: 4.75 MB / 0.5105 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004997/1.138, allocations: 3.664 MB / 0.8012 GB, free: 2.398 MB / 0.5105 GB Notification: Performance of preOpt evalFunc (simulation): time 0.008564/1.147, allocations: 9.638 MB / 0.8106 GB, free: 6.984 MB / 0.5261 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 9.411e-05/1.147, allocations: 92.23 kB / 0.8107 GB, free: 6.922 MB / 0.5261 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.005615/1.152, allocations: 1.28 MB / 0.8119 GB, free: 5.773 MB / 0.5261 GB Notification: Performance of pre-optimization done (n=500): time 2.333e-05/1.152, allocations: 4 kB / 0.8119 GB, free: 5.77 MB / 0.5261 GB Notification: Performance of matching and sorting (n=632): time 0.1767/1.329, allocations: 52.87 MB / 0.8636 GB, free: 10.34 MB / 0.573 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001008/1.329, allocations: 167.8 kB / 0.8637 GB, free: 10.15 MB / 0.573 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007713/1.337, allocations: 4.814 MB / 0.8684 GB, free: 6.59 MB / 0.573 GB Notification: Performance of collectPreVariables (initialization): time 0.001258/1.338, allocations: 147.9 kB / 0.8686 GB, free: 6.527 MB / 0.573 GB Notification: Performance of collectInitialEqns (initialization): time 0.002299/1.341, allocations: 2.979 MB / 0.8715 GB, free: 4.785 MB / 0.573 GB Notification: Performance of collectInitialBindings (initialization): time 0.002353/1.343, allocations: 2.165 MB / 0.8736 GB, free: 2.93 MB / 0.573 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009623/1.344, allocations: 152.2 kB / 0.8737 GB, free: 2.895 MB / 0.573 GB Notification: Performance of setup shared object (initialization): time 0.0004484/1.344, allocations: 0.5895 MB / 0.8743 GB, free: 2.414 MB / 0.573 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.1745/1.519, allocations: 3.948 MB / 0.8782 GB, free: 280.7 MB / 0.573 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.008398/1.527, allocations: 5.681 MB / 0.8837 GB, free: 279 MB / 0.573 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01515/1.543, allocations: 10.18 MB / 0.8937 GB, free: 275 MB / 0.573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.408e-05/1.543, allocations: 11.91 kB / 0.8937 GB, free: 275 MB / 0.573 GB Notification: Performance of matching and sorting (n=922) (initialization): time 0.01937/1.562, allocations: 12.59 MB / 0.906 GB, free: 270.6 MB / 0.573 GB Notification: Performance of prepare postOptimizeDAE: time 0.0006525/1.563, allocations: 1.453 MB / 0.9074 GB, free: 268.7 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.611e-05/1.563, allocations: 46 kB / 0.9074 GB, free: 268.7 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02465/1.587, allocations: 5.153 MB / 0.9125 GB, free: 267.7 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005644/1.593, allocations: 1.385 MB / 0.9138 GB, free: 267.6 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01075/1.604, allocations: 17.41 MB / 0.9308 GB, free: 253.6 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006677/1.611, allocations: 499.6 kB / 0.9313 GB, free: 253.4 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008827/1.611, allocations: 451.4 kB / 0.9317 GB, free: 253.4 MB / 0.573 GB Notification: Performance of prepare postOptimizeDAE: time 9.688e-06/1.611, allocations: 7.75 kB / 0.9317 GB, free: 253.4 MB / 0.573 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01818/1.63, allocations: 12.1 MB / 0.9436 GB, free: 247 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.442e-05/1.63, allocations: 48 kB / 0.9436 GB, free: 247 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.009066/1.639, allocations: 3.381 MB / 0.9469 GB, free: 243.6 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005334/1.644, allocations: 1.412 MB / 0.9483 GB, free: 242.1 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01562/1.66, allocations: 21.92 MB / 0.9697 GB, free: 219.7 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006385/1.666, allocations: 488.3 kB / 0.9702 GB, free: 219.3 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007484/1.667, allocations: 443.8 kB / 0.9706 GB, free: 218.9 MB / 0.573 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 204 * 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 (762): * Single equations (assignments): 739 * 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: 23 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 23 {1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,9 42} Notification: Performance of prepare postOptimizeDAE: time 0.00375/1.671, allocations: 1.934 MB / 0.9725 GB, free: 216.9 MB / 0.573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00108/1.672, allocations: 0.6479 MB / 0.9731 GB, free: 216.6 MB / 0.573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01962/1.691, allocations: 12.63 MB / 0.9854 GB, free: 204.1 MB / 0.573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.417e-05/1.692, allocations: 64 kB / 0.9855 GB, free: 204.1 MB / 0.573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.038e-05/1.692, allocations: 0 / 0.9855 GB, free: 204.1 MB / 0.573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.01215/1.704, allocations: 9.705 MB / 0.995 GB, free: 194.2 MB / 0.573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03172/1.735, allocations: 24.74 MB / 1.019 GB, free: 169.1 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.493e-05/1.736, allocations: 20 kB / 1.019 GB, free: 169.1 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002994/1.739, allocations: 0.8781 MB / 1.02 GB, free: 168.2 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.02313/1.762, allocations: 5.561 MB / 1.025 GB, free: 162.6 MB / 0.573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007721/1.762, allocations: 235.9 kB / 1.026 GB, free: 162.3 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.009773/1.772, allocations: 17.39 MB / 1.043 GB, free: 144.4 MB / 0.573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.122e-05/1.772, allocations: 23.88 kB / 1.043 GB, free: 144.4 MB / 0.573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0212/1.793, allocations: 16.89 MB / 1.059 GB, free: 126.9 MB / 0.573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00359/1.797, allocations: 1.687 MB / 1.061 GB, free: 125.2 MB / 0.573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001481/1.799, allocations: 168 kB / 1.061 GB, free: 125 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004566/1.803, allocations: 315.9 kB / 1.061 GB, free: 124.7 MB / 0.573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009618/1.804, allocations: 472 kB / 1.062 GB, free: 124.3 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000684/1.805, allocations: 351.8 kB / 1.062 GB, free: 123.9 MB / 0.573 GB Notification: Performance of sorting global known variables: time 0.004226/1.809, allocations: 3.16 MB / 1.065 GB, free: 120.8 MB / 0.573 GB Notification: Performance of sort global known variables: time 3.61e-07/1.809, allocations: 4 kB / 1.065 GB, free: 120.8 MB / 0.573 GB Notification: Performance of remove unused functions: time 0.021/1.83, allocations: 5.152 MB / 1.07 GB, free: 116.1 MB / 0.573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 69 * Number of states: 22 (pipe1.mediums[1].T,pipe1.mediums[2].T,pipe2.mediums[1].T,pipe2.mediums[2].T,pipe3.mediums[1].T,pipe3.mediums[2].T,pipe4.mediums[1].T,pipe4.mediums[2].T,pipe6.mediums[1].T,pipe6.mediums[2].T,pipe7.mediums[1].T,pipe7.mediums[2].T,pipe8.mediums[1].T,pipe8.mediums[2].T,pipe9.mediums[1].T,pipe9.mediums[2].T,pipe10.mediums[1].T,pipe10.mediums[2].T,pipe5.mediums[1].T,pipe5.mediums[2].T,pipe11.mediums[1].T,pipe11.mediums[2].T) * 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 (500): * Single equations (assignments): 477 * 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: 23 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 23 {1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,1 5,12 63} Notification: Performance of Backend phase and start with SimCode phase: time 0.03508/1.865, allocations: 20.23 MB / 1.09 GB, free: 95.82 MB / 0.573 GB Notification: Performance of simCode: created initialization part: time 0.02651/1.892, allocations: 15.67 MB / 1.105 GB, free: 80.14 MB / 0.573 GB Notification: Performance of simCode: created event and clocks part: time 1.923e-05/1.892, allocations: 9.75 kB / 1.105 GB, free: 80.13 MB / 0.573 GB Notification: Performance of simCode: created simulation system equations: time 0.008414/1.9, allocations: 4.936 MB / 1.11 GB, free: 75.22 MB / 0.573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.02758/1.928, allocations: 2.684 MB / 1.113 GB, free: 72.53 MB / 0.573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1025/2.03, allocations: 66.82 MB / 1.178 GB, free: 2.078 MB / 0.573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.1831/2.214, allocations: 4.307 MB / 1.182 GB, free: 267.2 MB / 0.573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.005289/2.219, allocations: 3.285 MB / 1.185 GB, free: 267.2 MB / 0.573 GB Notification: Performance of SimCode: time 5.91e-07/2.219, allocations: 0 / 1.185 GB, free: 267.2 MB / 0.573 GB Notification: Performance of buildModelFMU: Generate C++ for platform static: time 21.73/23.95, allocations: 0.7787 GB / 1.964 GB, free: 247.2 MB / 0.573 GB (rm -f Modelica_3.2.3_cpp_Modelica.Fluid.Examples.IncompressibleFluidNetwork.pipe ; mkfifo Modelica_3.2.3_cpp_Modelica.Fluid.Examples.IncompressibleFluidNetwork.pipe ; head -c 1048576 < Modelica_3.2.3_cpp_Modelica.Fluid.Examples.IncompressibleFluidNetwork.pipe >> ../files/Modelica_3.2.3_cpp_Modelica.Fluid.Examples.IncompressibleFluidNetwork.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator -r=Modelica_3.2.3_cpp_Modelica.Fluid.Examples.IncompressibleFluidNetwork_res.mat --tempDir=temp_Modelica_3_2_3_cpp_Modelica_Fluid_Examples_IncompressibleFluidNetwork_fmu --startTime=0 --stopTime=200 --timeout=50 --tolerance=1e-06 Modelica_3_2_3_cpp_Modelica_Fluid_Examples_IncompressibleFluidNetwork.fmu > Modelica_3.2.3_cpp_Modelica.Fluid.Examples.IncompressibleFluidNetwork.pipe 2>&1)