Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 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(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter,fileNamePrefix="Buildings_8_Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter,fileNamePrefix="Buildings_8_Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter",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 0.001151/0.001151, 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 0.001177/0.001177, allocations: 189.8 kB / 16.13 MB, free: 6.66 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.187/1.187, allocations: 205.1 MB / 222 MB, free: 4.727 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.494/1.494, allocations: 292.3 MB / 0.5484 GB, free: 13.66 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001272/0.001272, allocations: 61.36 kB / 0.6709 GB, free: 26.18 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1618/0.1631, allocations: 114.5 MB / 0.7828 GB, free: 13.9 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter): time 0.003601/0.1667, allocations: 2.811 MB / 0.7855 GB, free: 11.07 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.002473/0.1692, allocations: 2.055 MB / 0.7875 GB, free: 9 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 7.865e-05/0.1693, allocations: 4 kB / 0.7876 GB, free: 8.996 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.000592/0.1699, allocations: 214.5 kB / 0.7878 GB, free: 8.789 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.0003072/0.1702, allocations: 191.3 kB / 0.7879 GB, free: 8.602 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.0004104/0.1706, allocations: 231.5 kB / 0.7882 GB, free: 8.375 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.0003421/0.171, allocations: 458.8 kB / 0.7886 GB, free: 7.926 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002762/0.1712, allocations: 150.2 kB / 0.7887 GB, free: 7.781 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00013/0.1714, allocations: 111.6 kB / 0.7888 GB, free: 7.672 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002202/0.1716, allocations: 155.5 kB / 0.789 GB, free: 7.52 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 3.177e-05/0.1716, allocations: 23.94 kB / 0.789 GB, free: 7.496 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0005038/0.1722, allocations: 439.2 kB / 0.7894 GB, free: 7.066 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 8.799e-05/0.1723, allocations: 91.77 kB / 0.7895 GB, free: 6.977 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 9.468e-05/0.1724, allocations: 107.4 kB / 0.7896 GB, free: 6.871 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.0004528/0.1728, allocations: 474.6 kB / 0.7901 GB, free: 6.406 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 3.116e-06/0.1728, allocations: 0 / 0.7901 GB, free: 6.406 MB / 0.6075 GB Notification: Performance of FrontEnd: time 7.01e-07/0.1728, allocations: 0 / 0.7901 GB, free: 6.406 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 3.968e-06/0.1728, allocations: 0 / 0.7901 GB, free: 6.406 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 54 * Number of variables: 54 Notification: Performance of Generate backend data structure: time 0.000744/0.1736, allocations: 0.5576 MB / 0.7906 GB, free: 5.797 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 2.978e-05/0.1736, allocations: 8.031 kB / 0.7906 GB, free: 5.789 MB / 0.6075 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.455e-05/0.1737, allocations: 54.73 kB / 0.7907 GB, free: 5.727 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006674/0.1744, allocations: 108.5 kB / 0.7908 GB, free: 5.621 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002449/0.1746, allocations: 252.4 kB / 0.791 GB, free: 5.336 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.4e-05/0.1746, allocations: 16.81 kB / 0.791 GB, free: 5.32 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.009e-05/0.1747, allocations: 23.94 kB / 0.7911 GB, free: 5.297 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005513/0.1752, allocations: 393.8 kB / 0.7914 GB, free: 4.887 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.068e-05/0.1752, allocations: 0 / 0.7914 GB, free: 4.887 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.829e-05/0.1753, allocations: 7.984 kB / 0.7915 GB, free: 4.879 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.816e-05/0.1753, allocations: 31.77 kB / 0.7915 GB, free: 4.848 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005723/0.1759, allocations: 355.6 kB / 0.7918 GB, free: 4.5 MB / 0.6075 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001649/0.1776, allocations: 1.734 MB / 0.7935 GB, free: 2.621 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005775/0.1781, allocations: 336.9 kB / 0.7938 GB, free: 2.273 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000274/0.1784, allocations: 185.6 kB / 0.794 GB, free: 2.086 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001226/0.1786, allocations: 97.09 kB / 0.7941 GB, free: 1.973 MB / 0.6075 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.66e-05/0.1786, allocations: 30.56 kB / 0.7941 GB, free: 1.934 MB / 0.6075 GB Notification: Performance of pre-optimization done (n=25): time 1.333e-06/0.1786, allocations: 0 / 0.7941 GB, free: 1.934 MB / 0.6075 GB Notification: Performance of matching and sorting (n=35): time 0.006664/0.1853, allocations: 1.915 MB / 0.796 GB, free: 12 kB / 0.6075 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.407e-05/0.1853, allocations: 85.05 kB / 0.7961 GB, free: 15.91 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001351/0.1855, allocations: 180 kB / 0.7963 GB, free: 15.73 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 3.385e-05/0.1855, allocations: 29.7 kB / 0.7963 GB, free: 15.69 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 8.046e-05/0.1856, allocations: 160.3 kB / 0.7964 GB, free: 15.53 MB / 0.6231 GB Notification: Performance of collectInitialBindings (initialization): time 8.419e-05/0.1857, allocations: 118.3 kB / 0.7966 GB, free: 15.41 MB / 0.6231 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001317/0.1858, allocations: 77.59 kB / 0.7966 GB, free: 15.33 MB / 0.6231 GB Notification: Performance of setup shared object (initialization): time 9.085e-05/0.1859, allocations: 334.8 kB / 0.7969 GB, free: 14.99 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004303/0.1863, allocations: 248.7 kB / 0.7972 GB, free: 14.75 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004728/0.1868, allocations: 337.5 kB / 0.7975 GB, free: 14.38 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009111/0.1877, allocations: 0.6034 MB / 0.7981 GB, free: 13.75 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.512e-06/0.1878, allocations: 0 / 0.7981 GB, free: 13.75 MB / 0.6231 GB Notification: Performance of matching and sorting (n=44) (initialization): time 0.001055/0.1888, allocations: 0.6352 MB / 0.7987 GB, free: 13.11 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 1.332e-05/0.1888, allocations: 15.98 kB / 0.7987 GB, free: 13.09 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.588e-06/0.1888, allocations: 0 / 0.7987 GB, free: 13.09 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.282e-05/0.1889, allocations: 4 kB / 0.7987 GB, free: 13.09 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008244/0.1897, allocations: 147.8 kB / 0.7989 GB, free: 12.95 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.855e-06/0.1897, allocations: 4 kB / 0.7989 GB, free: 12.94 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003758/0.1901, allocations: 55.92 kB / 0.7989 GB, free: 12.89 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.627e-05/0.1901, allocations: 19.92 kB / 0.7989 GB, free: 12.87 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000493/0.1906, allocations: 360.6 kB / 0.7993 GB, free: 12.51 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004454/0.1911, allocations: 317.3 kB / 0.7996 GB, free: 12.17 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008559/0.192, allocations: 0.5705 MB / 0.8002 GB, free: 11.57 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.402e-06/0.192, allocations: 0 / 0.8002 GB, free: 11.57 MB / 0.6231 GB Notification: Performance of matching and sorting (n=44) (initialization_lambda0): time 0.00102/0.193, allocations: 0.6143 MB / 0.8008 GB, free: 10.95 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 9.037e-06/0.193, allocations: 8 kB / 0.8008 GB, free: 10.94 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.254e-06/0.193, allocations: 3.938 kB / 0.8008 GB, free: 10.93 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.23e-06/0.193, allocations: 4 kB / 0.8008 GB, free: 10.93 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007739/0.1938, allocations: 144 kB / 0.8009 GB, free: 10.79 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.342e-06/0.1938, allocations: 11.98 kB / 0.8009 GB, free: 10.78 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003607/0.1942, allocations: 47.94 kB / 0.801 GB, free: 10.73 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.353e-05/0.1942, allocations: 19.94 kB / 0.801 GB, free: 10.71 MB / 0.6231 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 10 * 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 (44): * Single equations (assignments): 44 * 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 0.0001225/0.1944, allocations: 200.1 kB / 0.8012 GB, free: 10.51 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 7.609e-05/0.1944, allocations: 19.81 kB / 0.8012 GB, free: 10.49 MB / 0.6231 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001181/0.1956, allocations: 0.6645 MB / 0.8018 GB, free: 9.816 MB / 0.6231 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.398e-06/0.1956, allocations: 4 kB / 0.8018 GB, free: 9.812 MB / 0.6231 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.008e-06/0.1956, allocations: 4 kB / 0.8018 GB, free: 9.809 MB / 0.6231 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.937e-06/0.1957, allocations: 0 / 0.8018 GB, free: 9.809 MB / 0.6231 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00187/0.1975, allocations: 1.368 MB / 0.8032 GB, free: 8.344 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.677e-06/0.1975, allocations: 7.938 kB / 0.8032 GB, free: 8.336 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005336/0.1981, allocations: 111.8 kB / 0.8033 GB, free: 8.227 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.006e-06/0.1981, allocations: 4 kB / 0.8033 GB, free: 8.223 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.047e-05/0.1981, allocations: 19.92 kB / 0.8033 GB, free: 8.203 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.695e-06/0.1981, allocations: 0 / 0.8033 GB, free: 8.203 MB / 0.6231 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.777e-06/0.1981, allocations: 12.25 kB / 0.8033 GB, free: 8.191 MB / 0.6231 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008734/0.199, allocations: 0.7073 MB / 0.804 GB, free: 7.445 MB / 0.6231 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001299/0.1992, allocations: 144.7 kB / 0.8042 GB, free: 7.285 MB / 0.6231 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.779e-05/0.1992, allocations: 11.94 kB / 0.8042 GB, free: 7.273 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003087/0.1995, allocations: 35.95 kB / 0.8042 GB, free: 7.238 MB / 0.6231 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.473e-05/0.1996, allocations: 31.95 kB / 0.8042 GB, free: 7.207 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.489e-05/0.1996, allocations: 19.94 kB / 0.8043 GB, free: 7.188 MB / 0.6231 GB Notification: Performance of sorting global known variables: time 0.0001058/0.1998, allocations: 144.3 kB / 0.8044 GB, free: 7.047 MB / 0.6231 GB Notification: Performance of sort global known variables: time 1.01e-07/0.1998, allocations: 0 / 0.8044 GB, free: 7.047 MB / 0.6231 GB Notification: Performance of remove unused functions: time 0.0005494/0.2003, allocations: 144 kB / 0.8045 GB, free: 6.906 MB / 0.6231 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * 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 (37): * Single equations (assignments): 37 * 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 0.001167/0.2015, allocations: 1.288 MB / 0.8058 GB, free: 5.566 MB / 0.6231 GB Notification: Performance of simCode: created initialization part: time 0.001355/0.2029, allocations: 0.8489 MB / 0.8066 GB, free: 4.719 MB / 0.6231 GB Notification: Performance of simCode: created event and clocks part: time 1.884e-06/0.2029, allocations: 0 / 0.8066 GB, free: 4.719 MB / 0.6231 GB Notification: Performance of simCode: created simulation system equations: time 0.0004048/0.2033, allocations: 256.8 kB / 0.8069 GB, free: 4.469 MB / 0.6231 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004594/0.2037, allocations: 47.78 kB / 0.8069 GB, free: 4.422 MB / 0.6231 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004426/0.2082, allocations: 3.879 MB / 0.8107 GB, free: 364 kB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000297/0.2085, allocations: 0.7838 MB / 0.8115 GB, free: 15.54 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.0004682/0.209, allocations: 162.8 kB / 0.8116 GB, free: 15.38 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001862/0.2092, allocations: 87.41 kB / 0.8117 GB, free: 15.3 MB / 0.6387 GB Notification: Performance of SimCode: time 2.7e-07/0.2092, allocations: 0 / 0.8117 GB, free: 15.3 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 3.876/4.085, allocations: 6.885 MB / 0.8184 GB, free: 8.562 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0003356/4.085, allocations: 216.1 kB / 0.8186 GB, free: 8.309 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 1.795/5.88, allocations: 0 / 0.8186 GB, free: 8.309 MB / 0.6387 GB (rm -f Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter.fmu > Buildings_8_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.pipe 2>&1)