Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.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.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid") translateModel(BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001067/0.001067, allocations: 111.3 kB / 15.23 MB, free: 0.6406 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001067/0.001067, allocations: 196.9 kB / 16.14 MB, free: 6.715 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.295/1.295, allocations: 222.9 MB / 239.8 MB, free: 4.602 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002135/0.002135, allocations: 282.5 kB / 290.2 MB, free: 2.203 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.938/0.938, allocations: 169.2 MB / 0.4977 GB, free: 14.14 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001701/0.001701, allocations: 90.02 kB / 0.5945 GB, free: 28.55 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1534/0.1551, allocations: 86.99 MB / 0.6794 GB, free: 1.133 MB / 478.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid): time 0.004557/0.1597, allocations: 2.914 MB / 0.6823 GB, free: 14.21 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.002574/0.1624, allocations: 1.673 MB / 0.6839 GB, free: 12.54 MB / 494.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001523/0.1625, allocations: 4 kB / 0.6839 GB, free: 12.54 MB / 494.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0007019/0.1633, allocations: 208.8 kB / 0.6841 GB, free: 12.33 MB / 494.1 MB Notification: Performance of NFTyping.typeBindings: time 0.000386/0.1637, allocations: 175.9 kB / 0.6843 GB, free: 12.16 MB / 494.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0004748/0.1641, allocations: 203.5 kB / 0.6845 GB, free: 11.96 MB / 494.1 MB Notification: Performance of NFFlatten.flatten: time 0.0003766/0.1645, allocations: 430.8 kB / 0.6849 GB, free: 11.54 MB / 494.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.000343/0.1649, allocations: 182.4 kB / 0.6851 GB, free: 11.36 MB / 494.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0001591/0.165, allocations: 107.5 kB / 0.6852 GB, free: 11.25 MB / 494.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0002295/0.1653, allocations: 151.5 kB / 0.6853 GB, free: 11.11 MB / 494.1 MB Notification: Performance of NFPackage.collectConstants: time 3.154e-05/0.1653, allocations: 12 kB / 0.6853 GB, free: 11.09 MB / 494.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0004202/0.1658, allocations: 311.4 kB / 0.6856 GB, free: 10.79 MB / 494.1 MB Notification: Performance of NFScalarize.scalarize: time 8.509e-05/0.1658, allocations: 83.67 kB / 0.6857 GB, free: 10.71 MB / 494.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001086/0.166, allocations: 115.4 kB / 0.6858 GB, free: 10.59 MB / 494.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0004282/0.1664, allocations: 418.7 kB / 0.6862 GB, free: 10.18 MB / 494.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.897e-06/0.1664, allocations: 0 / 0.6862 GB, free: 10.18 MB / 494.1 MB Notification: Performance of FrontEnd: time 7.21e-07/0.1664, allocations: 0 / 0.6862 GB, free: 10.18 MB / 494.1 MB Notification: Performance of Transformations before backend: time 5.861e-06/0.1664, allocations: 0 / 0.6862 GB, free: 10.18 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: 53 * Number of variables: 53 Notification: Performance of Generate backend data structure: time 0.0008585/0.1673, allocations: 0.5419 MB / 0.6868 GB, free: 9.59 MB / 494.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.318e-05/0.1673, allocations: 12.03 kB / 0.6868 GB, free: 9.578 MB / 494.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006904/0.168, allocations: 88.55 kB / 0.6868 GB, free: 9.492 MB / 494.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002884/0.1683, allocations: 261.8 kB / 0.6871 GB, free: 9.199 MB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.675e-05/0.1684, allocations: 12.75 kB / 0.6871 GB, free: 9.188 MB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 4.956e-05/0.1684, allocations: 20.36 kB / 0.6871 GB, free: 9.168 MB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006082/0.169, allocations: 386.5 kB / 0.6875 GB, free: 8.758 MB / 494.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.425e-05/0.169, allocations: 0 / 0.6875 GB, free: 8.758 MB / 494.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3e-05/0.1691, allocations: 7.984 kB / 0.6875 GB, free: 8.75 MB / 494.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.128e-05/0.1691, allocations: 28.31 kB / 0.6875 GB, free: 8.723 MB / 494.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005762/0.1697, allocations: 321.3 kB / 0.6878 GB, free: 8.41 MB / 494.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001651/0.1714, allocations: 1.728 MB / 0.6895 GB, free: 6.547 MB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0006572/0.172, allocations: 325.1 kB / 0.6898 GB, free: 6.211 MB / 494.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002594/0.1723, allocations: 149.6 kB / 0.69 GB, free: 6.059 MB / 494.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001337/0.1725, allocations: 89.09 kB / 0.6901 GB, free: 5.953 MB / 494.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.121e-05/0.1725, allocations: 38.56 kB / 0.6901 GB, free: 5.906 MB / 494.1 MB Notification: Performance of pre-optimization done (n=20): time 1.352e-06/0.1725, allocations: 0 / 0.6901 GB, free: 5.906 MB / 494.1 MB Notification: Performance of matching and sorting (n=21): time 0.001341/0.1738, allocations: 0.5973 MB / 0.6907 GB, free: 5.281 MB / 494.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 4.524e-05/0.1739, allocations: 89.23 kB / 0.6908 GB, free: 5.176 MB / 494.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000178/0.1741, allocations: 199.8 kB / 0.691 GB, free: 4.973 MB / 494.1 MB Notification: Performance of collectPreVariables (initialization): time 2.407e-05/0.1741, allocations: 29.7 kB / 0.691 GB, free: 4.938 MB / 494.1 MB Notification: Performance of collectInitialEqns (initialization): time 8.83e-05/0.1742, allocations: 163.8 kB / 0.6911 GB, free: 4.773 MB / 494.1 MB Notification: Performance of collectInitialBindings (initialization): time 5.226e-05/0.1743, allocations: 71 kB / 0.6912 GB, free: 4.703 MB / 494.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 9.381e-05/0.1744, allocations: 61.88 kB / 0.6913 GB, free: 4.637 MB / 494.1 MB Notification: Performance of setup shared object (initialization): time 0.0001033/0.1745, allocations: 326.8 kB / 0.6916 GB, free: 4.309 MB / 494.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002549/0.1747, allocations: 137.9 kB / 0.6917 GB, free: 4.172 MB / 494.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002862/0.175, allocations: 207.3 kB / 0.6919 GB, free: 3.934 MB / 494.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005543/0.1756, allocations: 369.9 kB / 0.6923 GB, free: 3.535 MB / 494.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.593e-06/0.1756, allocations: 0 / 0.6923 GB, free: 3.535 MB / 494.1 MB Notification: Performance of matching and sorting (n=33) (initialization): time 0.0007697/0.1764, allocations: 425.9 kB / 0.6927 GB, free: 3.109 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.565e-05/0.1764, allocations: 4 kB / 0.6927 GB, free: 3.105 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.162e-06/0.1764, allocations: 4 kB / 0.6927 GB, free: 3.102 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002159/0.1766, allocations: 40.81 kB / 0.6927 GB, free: 3.059 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002979/0.177, allocations: 68.2 kB / 0.6928 GB, free: 2.992 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001297/0.1783, allocations: 1.509 MB / 0.6943 GB, free: 1.344 MB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002198/0.1785, allocations: 35.83 kB / 0.6943 GB, free: 1.309 MB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.158e-05/0.1785, allocations: 15.98 kB / 0.6943 GB, free: 1.293 MB / 494.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000311/0.1789, allocations: 228.6 kB / 0.6945 GB, free: 1.066 MB / 494.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002835/0.1792, allocations: 212.4 kB / 0.6947 GB, free: 0.8203 MB / 494.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0005089/0.1797, allocations: 360.7 kB / 0.6951 GB, free: 440 kB / 494.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.563e-06/0.1797, allocations: 0 / 0.6951 GB, free: 440 kB / 494.1 MB Notification: Performance of matching and sorting (n=33) (initialization_lambda0): time 0.0007149/0.1804, allocations: 407.3 kB / 0.6955 GB, free: 24 kB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 9.377e-06/0.1804, allocations: 8 kB / 0.6955 GB, free: 16 kB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.765e-06/0.1804, allocations: 384 / 0.6955 GB, free: 16 kB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001498/0.1806, allocations: 44.83 kB / 0.6955 GB, free: 15.97 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002675/0.1809, allocations: 71.88 kB / 0.6956 GB, free: 15.9 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001169/0.182, allocations: 1.501 MB / 0.697 GB, free: 14.26 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001938/0.1823, allocations: 19.98 kB / 0.6971 GB, free: 14.24 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.296e-05/0.1823, allocations: 15.98 kB / 0.6971 GB, free: 14.22 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 12 * 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 (31): * Single equations (assignments): 30 * 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): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0001237/0.1824, allocations: 200.1 kB / 0.6973 GB, free: 14.02 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.933e-05/0.1825, allocations: 23.72 kB / 0.6973 GB, free: 14 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006824/0.1832, allocations: 357.8 kB / 0.6976 GB, free: 13.64 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.25e-06/0.1832, allocations: 7.938 kB / 0.6976 GB, free: 13.64 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.475e-06/0.1832, allocations: 0 / 0.6976 GB, free: 13.64 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.196e-06/0.1832, allocations: 0 / 0.6976 GB, free: 13.64 MB / 0.4981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001384/0.1846, allocations: 0.962 MB / 0.6986 GB, free: 12.6 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.389e-06/0.1846, allocations: 4.219 kB / 0.6986 GB, free: 12.59 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000234/0.1849, allocations: 55.89 kB / 0.6986 GB, free: 12.54 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001186/0.185, allocations: 36.83 kB / 0.6987 GB, free: 12.5 MB / 0.4981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.119e-05/0.185, allocations: 8 kB / 0.6987 GB, free: 12.49 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001011/0.186, allocations: 1.402 MB / 0.7 GB, free: 10.95 MB / 0.4981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.238e-06/0.186, allocations: 3.984 kB / 0.7001 GB, free: 10.95 MB / 0.4981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0006739/0.1867, allocations: 0.5375 MB / 0.7006 GB, free: 10.37 MB / 0.4981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001091/0.1868, allocations: 128.7 kB / 0.7007 GB, free: 10.23 MB / 0.4981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.524e-05/0.1869, allocations: 4 kB / 0.7007 GB, free: 10.22 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002452/0.1871, allocations: 23.97 kB / 0.7007 GB, free: 10.2 MB / 0.4981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.293e-05/0.1872, allocations: 23.92 kB / 0.7007 GB, free: 10.18 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.943e-05/0.1872, allocations: 7.938 kB / 0.7008 GB, free: 10.17 MB / 0.4981 GB Notification: Performance of sorting global known variables: time 0.0001313/0.1874, allocations: 159 kB / 0.7009 GB, free: 10.01 MB / 0.4981 GB Notification: Performance of sort global known variables: time 1.31e-07/0.1874, allocations: 0 / 0.7009 GB, free: 10.01 MB / 0.4981 GB Notification: Performance of remove unused functions: time 0.0005757/0.188, allocations: 108 kB / 0.701 GB, free: 9.906 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * 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 simulation (21): * Single equations (assignments): 20 * 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): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0001373/0.1881, allocations: 119.1 kB / 0.7011 GB, free: 9.781 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.001266/0.1894, allocations: 0.7307 MB / 0.7018 GB, free: 9.027 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 2.725e-06/0.1894, allocations: 0 / 0.7018 GB, free: 9.027 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.000393/0.1898, allocations: 270.4 kB / 0.7021 GB, free: 8.75 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004835/0.1903, allocations: 32.61 kB / 0.7021 GB, free: 8.719 MB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0009485/0.1912, allocations: 0.6417 MB / 0.7028 GB, free: 8.027 MB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003177/0.1916, allocations: 0.7755 MB / 0.7035 GB, free: 7.227 MB / 0.4981 GB Notification: Performance of simCode: alias equations: time 0.000232/0.1918, allocations: 89.81 kB / 0.7036 GB, free: 7.137 MB / 0.4981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 7.552e-05/0.1919, allocations: 27.42 kB / 0.7036 GB, free: 7.109 MB / 0.4981 GB Notification: Performance of SimCode: time 3.41e-07/0.1919, allocations: 0 / 0.7036 GB, free: 7.109 MB / 0.4981 GB Notification: Performance of Templates: time 0.006132/0.198, allocations: 3.114 MB / 0.7067 GB, free: 4.004 MB / 0.4981 GB make -j1 -f BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.makefile (rm -f BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe ; mkfifo BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe >> ../files/BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.sim & ./BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe 2>&1)