Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface.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: translateModel(BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface") translateModel(BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001429/0.001429, allocations: 111.3 kB / 15.23 MB, free: 0.6602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001614/0.001614, allocations: 193.1 kB / 16.14 MB, free: 6.66 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.349/1.349, allocations: 222.9 MB / 239.8 MB, free: 4.605 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.00201/0.00201, allocations: 282.9 kB / 290.2 MB, free: 2.211 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.9424/0.9424, allocations: 169.2 MB / 0.4977 GB, free: 14.15 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001649/0.001649, allocations: 87.48 kB / 0.5945 GB, free: 28.31 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1713/0.1729, allocations: 86.98 MB / 0.6794 GB, free: 1.176 MB / 478.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface): time 0.003612/0.1766, allocations: 2.343 MB / 0.6817 GB, free: 14.83 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.005796/0.1824, allocations: 3.885 MB / 0.6855 GB, free: 10.94 MB / 494.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002894/0.1828, allocations: 11.94 kB / 0.6855 GB, free: 10.93 MB / 494.1 MB Notification: Performance of NFTyping.typeComponents: time 0.005663/0.1885, allocations: 2.975 MB / 0.6884 GB, free: 7.949 MB / 494.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0008411/0.1893, allocations: 354.8 kB / 0.6888 GB, free: 7.602 MB / 494.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.00118/0.1905, allocations: 459.2 kB / 0.6892 GB, free: 7.152 MB / 494.1 MB [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/NFFrontEnd/NFCeval.mo:1088:9-1088:67:writable] Error: Internal error NFCeval.evalBinaryMul failed to evaluate ‘{0.0, 1.0}[pressure.n] * 0.0‘ Notification: Performance of NFFlatten.flatten: time 0.004793/0.1953, allocations: 3.377 MB / 0.6925 GB, free: 3.77 MB / 494.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0001364/0.1955, allocations: 44.7 kB / 0.6926 GB, free: 3.727 MB / 494.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0002924/0.1958, allocations: 183.3 kB / 0.6927 GB, free: 3.547 MB / 494.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0002788/0.1961, allocations: 231.1 kB / 0.6929 GB, free: 3.32 MB / 494.1 MB Notification: Performance of NFPackage.collectConstants: time 3.537e-05/0.1961, allocations: 12 kB / 0.693 GB, free: 3.309 MB / 494.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001381/0.1975, allocations: 0.7681 MB / 0.6937 GB, free: 2.539 MB / 494.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002726/0.1978, allocations: 211.4 kB / 0.6939 GB, free: 2.332 MB / 494.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0002716/0.1981, allocations: 222.7 kB / 0.6941 GB, free: 2.113 MB / 494.1 MB Notification: Performance of NFConvertDAE.convert: time 0.001407/0.1995, allocations: 1.005 MB / 0.6951 GB, free: 1.105 MB / 494.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.057e-06/0.1995, allocations: 0 / 0.6951 GB, free: 1.105 MB / 494.1 MB Notification: Performance of FrontEnd: time 1.512e-06/0.1995, allocations: 0 / 0.6951 GB, free: 1.105 MB / 494.1 MB Notification: Performance of Transformations before backend: time 6.482e-06/0.1995, allocations: 0 / 0.6951 GB, free: 1.105 MB / 494.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 21 * Number of variables: 21 Notification: Performance of Generate backend data structure: time 0.001397/0.2009, allocations: 0.8905 MB / 0.696 GB, free: 168 kB / 494.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.733e-05/0.201, allocations: 16.02 kB / 0.696 GB, free: 152 kB / 494.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001265/0.2022, allocations: 208.1 kB / 0.6962 GB, free: 15.94 MB / 0.4981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00174/0.204, allocations: 0.9559 MB / 0.6971 GB, free: 14.95 MB / 0.4981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.594e-05/0.204, allocations: 15.98 kB / 0.6971 GB, free: 14.93 MB / 0.4981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.643e-05/0.2041, allocations: 12 kB / 0.6971 GB, free: 14.92 MB / 0.4981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005438/0.2046, allocations: 262.2 kB / 0.6974 GB, free: 14.66 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.567e-06/0.2047, allocations: 3.984 kB / 0.6974 GB, free: 14.66 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.246e-05/0.2047, allocations: 0 / 0.6974 GB, free: 14.66 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.112e-06/0.2047, allocations: 4 kB / 0.6974 GB, free: 14.65 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007101/0.2054, allocations: 247.3 kB / 0.6976 GB, free: 14.41 MB / 0.4981 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001327/0.2068, allocations: 0.8278 MB / 0.6984 GB, free: 13.54 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008115/0.2076, allocations: 306.6 kB / 0.6987 GB, free: 13.23 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003333/0.2079, allocations: 124.8 kB / 0.6989 GB, free: 13.1 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 2.694e-05/0.208, allocations: 3.984 kB / 0.6989 GB, free: 13.1 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.472e-05/0.208, allocations: 30.56 kB / 0.6989 GB, free: 13.06 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=10): time 1.402e-06/0.208, allocations: 0 / 0.6989 GB, free: 13.06 MB / 0.4981 GB Notification: Performance of matching and sorting (n=10): time 0.00121/0.2092, allocations: 456.8 kB / 0.6993 GB, free: 12.61 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.076e-05/0.2093, allocations: 51.41 kB / 0.6994 GB, free: 12.54 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007491/0.21, allocations: 0.7381 MB / 0.7001 GB, free: 11.79 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 3.11e-05/0.2101, allocations: 33.64 kB / 0.7001 GB, free: 11.75 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002233/0.2103, allocations: 224.7 kB / 0.7003 GB, free: 11.53 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 4.747e-05/0.2103, allocations: 43.55 kB / 0.7004 GB, free: 11.48 MB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002753/0.2106, allocations: 158 kB / 0.7005 GB, free: 11.32 MB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 0.0002003/0.2108, allocations: 370.8 kB / 0.7009 GB, free: 10.95 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006745/0.2115, allocations: 442.9 kB / 0.7013 GB, free: 10.52 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007329/0.2123, allocations: 0.5239 MB / 0.7018 GB, free: 9.965 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001257/0.2135, allocations: 0.8741 MB / 0.7027 GB, free: 9.07 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.288e-06/0.2135, allocations: 3.938 kB / 0.7027 GB, free: 9.066 MB / 0.4981 GB Notification: Performance of matching and sorting (n=85) (initialization): time 0.00171/0.2152, allocations: 1.084 MB / 0.7037 GB, free: 7.973 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 2.033e-05/0.2153, allocations: 8 kB / 0.7037 GB, free: 7.965 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.427e-06/0.2153, allocations: 0 / 0.7037 GB, free: 7.965 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.755e-05/0.2153, allocations: 4 kB / 0.7038 GB, free: 7.961 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000474/0.2158, allocations: 107.9 kB / 0.7039 GB, free: 7.855 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.227e-05/0.2158, allocations: 7.984 kB / 0.7039 GB, free: 7.848 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004717/0.2163, allocations: 75.33 kB / 0.7039 GB, free: 7.773 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.56e-05/0.2164, allocations: 32 kB / 0.704 GB, free: 7.742 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007705/0.2171, allocations: 0.541 MB / 0.7045 GB, free: 7.195 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006937/0.2178, allocations: 472.4 kB / 0.7049 GB, free: 6.703 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001107/0.219, allocations: 0.7237 MB / 0.7057 GB, free: 5.961 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.485e-06/0.219, allocations: 7.938 kB / 0.7057 GB, free: 5.953 MB / 0.4981 GB Notification: Performance of matching and sorting (n=85) (initialization_lambda0): time 0.001488/0.2205, allocations: 0.9145 MB / 0.7066 GB, free: 5.031 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 1.328e-05/0.2205, allocations: 8 kB / 0.7066 GB, free: 5.023 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.38e-06/0.2205, allocations: 3.984 kB / 0.7066 GB, free: 5.02 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.121e-06/0.2205, allocations: 4 kB / 0.7066 GB, free: 5.016 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004204/0.2209, allocations: 107.8 kB / 0.7067 GB, free: 4.91 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.809e-06/0.2209, allocations: 4 kB / 0.7067 GB, free: 4.906 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004057/0.2214, allocations: 63.64 kB / 0.7067 GB, free: 4.844 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.955e-05/0.2214, allocations: 24 kB / 0.7068 GB, free: 4.82 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * 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 (52): * Single equations (assignments): 50 * Array equations: 1 * Algorithm blocks: 0 * Record equations: 1 * 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 0.0001596/0.2216, allocations: 196.8 kB / 0.7069 GB, free: 4.621 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001622/0.2218, allocations: 51.25 kB / 0.707 GB, free: 4.57 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009665/0.2227, allocations: 374.5 kB / 0.7074 GB, free: 4.191 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.737e-06/0.2227, allocations: 0 / 0.7074 GB, free: 4.191 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.49e-06/0.2227, allocations: 0 / 0.7074 GB, free: 4.191 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.138e-06/0.2228, allocations: 4 kB / 0.7074 GB, free: 4.188 MB / 0.4981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004454/0.2232, allocations: 409.2 kB / 0.7077 GB, free: 3.738 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.463e-06/0.2232, allocations: 0 / 0.7077 GB, free: 3.738 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002461/0.2235, allocations: 47.97 kB / 0.7078 GB, free: 3.691 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.635e-06/0.2235, allocations: 0 / 0.7078 GB, free: 3.691 MB / 0.4981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.237e-05/0.2235, allocations: 11.98 kB / 0.7078 GB, free: 3.68 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.603e-06/0.2235, allocations: 0 / 0.7078 GB, free: 3.68 MB / 0.4981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.513e-06/0.2235, allocations: 0 / 0.7078 GB, free: 3.68 MB / 0.4981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007632/0.2243, allocations: 430.5 kB / 0.7082 GB, free: 3.242 MB / 0.4981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001485/0.2244, allocations: 148.3 kB / 0.7084 GB, free: 3.078 MB / 0.4981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.472e-05/0.2245, allocations: 4 kB / 0.7084 GB, free: 3.074 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002736/0.2248, allocations: 19.98 kB / 0.7084 GB, free: 3.055 MB / 0.4981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.19e-05/0.2249, allocations: 7.984 kB / 0.7084 GB, free: 3.047 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.238e-05/0.2249, allocations: 19.98 kB / 0.7084 GB, free: 3.027 MB / 0.4981 GB Notification: Performance of sorting global known variables: time 0.0006114/0.2255, allocations: 0.4912 MB / 0.7089 GB, free: 2.539 MB / 0.4981 GB Notification: Performance of sort global known variables: time 1.6e-07/0.2255, allocations: 0 / 0.7089 GB, free: 2.539 MB / 0.4981 GB Notification: Performance of remove unused functions: time 0.0008804/0.2264, allocations: 307.9 kB / 0.7092 GB, free: 2.238 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * 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 simulation (11): * Single equations (assignments): 11 * 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 0.0007479/0.2271, allocations: 370.9 kB / 0.7095 GB, free: 1.863 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.001975/0.2291, allocations: 1.143 MB / 0.7106 GB, free: 0.7227 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 2.605e-06/0.2291, allocations: 0 / 0.7106 GB, free: 0.7227 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.000354/0.2295, allocations: 144.2 kB / 0.7108 GB, free: 0.582 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0008304/0.2303, allocations: 186.4 kB / 0.711 GB, free: 416 kB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001582/0.2319, allocations: 1.058 MB / 0.712 GB, free: 15.32 MB / 0.5137 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004527/0.2324, allocations: 0.8937 MB / 0.7129 GB, free: 14.4 MB / 0.5137 GB Notification: Performance of simCode: alias equations: time 0.0006416/0.233, allocations: 188.1 kB / 0.713 GB, free: 14.21 MB / 0.5137 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001753/0.2332, allocations: 59.41 kB / 0.7131 GB, free: 14.16 MB / 0.5137 GB Notification: Performance of SimCode: time 2.725e-06/0.2332, allocations: 0 / 0.7131 GB, free: 14.16 MB / 0.5137 GB Notification: Performance of Templates: time 0.01901/0.2523, allocations: 11.95 MB / 0.7248 GB, free: 2.355 MB / 0.5137 GB make -j1 -f BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface.makefile (rm -f BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface.sim & ./BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Fluid.Movers.BaseClasses.Validation.FlowMachineInterface.pipe 2>&1)