Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads.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.ThreePhasesBalanced.Loads.Examples.ParallelLoads,fileNamePrefix="Buildings_8_Buildings_Electrical_AC_ThreePhasesBalanced_Loads_Examples_ParallelLoads",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads,fileNamePrefix="Buildings_8_Buildings_Electrical_AC_ThreePhasesBalanced_Loads_Examples_ParallelLoads",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 0.001618/0.001618, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001717/0.001717, allocations: 195.8 kB / 16.54 MB, free: 6.672 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.26/1.26, allocations: 205.1 MB / 222.4 MB, free: 4.637 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 1.636/1.636, allocations: 292.3 MB / 0.5489 GB, free: 12.82 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 0.001495/0.001495, allocations: 69.89 kB / 0.6716 GB, free: 26.33 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2011/0.2026, allocations: 114.5 MB / 0.7835 GB, free: 13.37 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads): time 0.006289/0.209, allocations: 4.333 MB / 0.7877 GB, free: 9.008 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.004704/0.2137, allocations: 2.704 MB / 0.7904 GB, free: 6.289 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003127/0.2141, allocations: 11.94 kB / 0.7904 GB, free: 6.277 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.001232/0.2153, allocations: 374.2 kB / 0.7907 GB, free: 5.91 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.0009396/0.2163, allocations: 398.1 kB / 0.7911 GB, free: 5.52 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.001433/0.2177, allocations: 0.5173 MB / 0.7916 GB, free: 5.004 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.0009318/0.2187, allocations: 0.7163 MB / 0.7923 GB, free: 4.285 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006223/0.2193, allocations: 375.7 kB / 0.7927 GB, free: 3.914 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003944/0.2197, allocations: 275 kB / 0.7929 GB, free: 3.645 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005456/0.2202, allocations: 354.7 kB / 0.7933 GB, free: 3.297 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 7.704e-05/0.2203, allocations: 44 kB / 0.7933 GB, free: 3.254 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0005677/0.2209, allocations: 307.3 kB / 0.7936 GB, free: 2.953 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0001956/0.2211, allocations: 195.5 kB / 0.7938 GB, free: 2.762 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0002556/0.2214, allocations: 266.6 kB / 0.794 GB, free: 2.5 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.0007085/0.2221, allocations: 0.7281 MB / 0.7947 GB, free: 1.77 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 6.802e-06/0.2221, allocations: 4 kB / 0.7948 GB, free: 1.766 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.774e-06/0.2221, allocations: 0 / 0.7948 GB, free: 1.766 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 1.188e-05/0.2221, allocations: 0 / 0.7948 GB, free: 1.766 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: 123 * Number of variables: 123 Notification: Performance of Generate backend data structure: time 0.00146/0.2236, allocations: 0.8339 MB / 0.7956 GB, free: 0.8789 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 4.606e-05/0.2237, allocations: 8.031 kB / 0.7956 GB, free: 0.8711 MB / 0.6075 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001063/0.2238, allocations: 94.69 kB / 0.7957 GB, free: 0.7695 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008607/0.2246, allocations: 148.1 kB / 0.7958 GB, free: 0.625 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004237/0.2251, allocations: 367 kB / 0.7962 GB, free: 232 kB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.615e-05/0.2251, allocations: 33.36 kB / 0.7962 GB, free: 200 kB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.527e-05/0.2252, allocations: 44.36 kB / 0.7962 GB, free: 156 kB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001231/0.2264, allocations: 0.8322 MB / 0.797 GB, free: 15.23 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.2e-05/0.2265, allocations: 7.938 kB / 0.7971 GB, free: 15.22 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.177e-05/0.2265, allocations: 16 kB / 0.7971 GB, free: 15.21 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.072e-05/0.2266, allocations: 64.95 kB / 0.7971 GB, free: 15.14 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001241/0.2278, allocations: 0.6711 MB / 0.7978 GB, free: 14.47 MB / 0.6231 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003981/0.2318, allocations: 4.5 MB / 0.8022 GB, free: 9.625 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00123/0.2331, allocations: 0.6019 MB / 0.8028 GB, free: 9.008 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005407/0.2336, allocations: 317.2 kB / 0.8031 GB, free: 8.691 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 3.379e-05/0.2337, allocations: 4 kB / 0.8031 GB, free: 8.688 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.696e-05/0.2337, allocations: 38.56 kB / 0.8031 GB, free: 8.641 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=38): time 2.745e-06/0.2337, allocations: 0 / 0.8031 GB, free: 8.641 MB / 0.6231 GB Notification: Performance of matching and sorting (n=39): time 0.001978/0.2357, allocations: 0.9423 MB / 0.804 GB, free: 7.691 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.221e-05/0.2358, allocations: 81.11 kB / 0.8041 GB, free: 7.594 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003169/0.2361, allocations: 353.5 kB / 0.8044 GB, free: 7.242 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 3.664e-05/0.2361, allocations: 37.69 kB / 0.8045 GB, free: 7.199 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001517/0.2363, allocations: 279.8 kB / 0.8047 GB, free: 6.918 MB / 0.6231 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001009/0.2364, allocations: 138 kB / 0.8049 GB, free: 6.781 MB / 0.6231 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001606/0.2366, allocations: 114.1 kB / 0.805 GB, free: 6.664 MB / 0.6231 GB Notification: Performance of setup shared object (initialization): time 0.0001147/0.2367, allocations: 354.7 kB / 0.8053 GB, free: 6.309 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005176/0.2372, allocations: 278.8 kB / 0.8056 GB, free: 6.031 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006313/0.2379, allocations: 476 kB / 0.806 GB, free: 5.473 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001193/0.2391, allocations: 0.778 MB / 0.8068 GB, free: 4.602 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.066e-06/0.2391, allocations: 0 / 0.8068 GB, free: 4.602 MB / 0.6231 GB Notification: Performance of matching and sorting (n=68) (initialization): time 0.001377/0.2405, allocations: 0.7968 MB / 0.8076 GB, free: 3.797 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 2.009e-05/0.2405, allocations: 11.98 kB / 0.8076 GB, free: 3.785 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.07e-05/0.2405, allocations: 8 kB / 0.8076 GB, free: 3.777 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.916e-05/0.2405, allocations: 8 kB / 0.8076 GB, free: 3.77 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007102/0.2412, allocations: 167.7 kB / 0.8078 GB, free: 3.605 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.933e-05/0.2413, allocations: 12.34 kB / 0.8078 GB, free: 3.594 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004552/0.2417, allocations: 79.7 kB / 0.8079 GB, free: 3.516 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.359e-05/0.2418, allocations: 27.98 kB / 0.8079 GB, free: 3.488 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005805/0.2424, allocations: 357.7 kB / 0.8082 GB, free: 3.133 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0005543/0.2429, allocations: 443.7 kB / 0.8086 GB, free: 2.598 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0009986/0.2439, allocations: 0.6827 MB / 0.8093 GB, free: 1.816 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.008e-06/0.244, allocations: 4 kB / 0.8093 GB, free: 1.812 MB / 0.6231 GB Notification: Performance of matching and sorting (n=68) (initialization_lambda0): time 0.001203/0.2452, allocations: 0.6903 MB / 0.81 GB, free: 1.117 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 1.04e-05/0.2452, allocations: 12.16 kB / 0.81 GB, free: 1.105 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.737e-06/0.2452, allocations: 8 kB / 0.81 GB, free: 1.098 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 8.366e-06/0.2452, allocations: 8 kB / 0.81 GB, free: 1.09 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005793/0.2458, allocations: 155.7 kB / 0.8102 GB, free: 0.9375 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.202e-05/0.2458, allocations: 8 kB / 0.8102 GB, free: 0.9297 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003862/0.2462, allocations: 67.62 kB / 0.8102 GB, free: 0.8633 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.67e-05/0.2463, allocations: 27.94 kB / 0.8103 GB, free: 0.8359 MB / 0.6231 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 30 * 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 (68): * Single equations (assignments): 68 * 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 0.0001477/0.2464, allocations: 224 kB / 0.8105 GB, free: 0.6094 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.51e-05/0.2465, allocations: 47.56 kB / 0.8105 GB, free: 0.5625 MB / 0.6231 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00124/0.2478, allocations: 0.6458 MB / 0.8112 GB, free: 15.91 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.123e-06/0.2478, allocations: 8 kB / 0.8112 GB, free: 15.91 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.699e-06/0.2478, allocations: 0 / 0.8112 GB, free: 15.91 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.16e-06/0.2478, allocations: 0 / 0.8112 GB, free: 15.91 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002136/0.2499, allocations: 1.462 MB / 0.8126 GB, free: 14.37 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.815e-06/0.25, allocations: 0 / 0.8126 GB, free: 14.37 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007127/0.2507, allocations: 143.8 kB / 0.8127 GB, free: 14.23 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.31e-06/0.2507, allocations: 8.219 kB / 0.8127 GB, free: 14.22 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.892e-05/0.2507, allocations: 15.88 kB / 0.8128 GB, free: 14.2 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.479e-06/0.2508, allocations: 4 kB / 0.8128 GB, free: 14.2 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.833e-06/0.2508, allocations: 0 / 0.8128 GB, free: 14.2 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001128/0.2519, allocations: 0.7961 MB / 0.8135 GB, free: 13.37 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001783/0.2521, allocations: 172.4 kB / 0.8137 GB, free: 13.18 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.632e-05/0.2522, allocations: 15.94 kB / 0.8137 GB, free: 13.16 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004157/0.2526, allocations: 51.92 kB / 0.8138 GB, free: 13.11 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.418e-05/0.2527, allocations: 31.95 kB / 0.8138 GB, free: 13.08 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.757e-05/0.2527, allocations: 15.94 kB / 0.8138 GB, free: 13.07 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.0002276/0.253, allocations: 251.2 kB / 0.814 GB, free: 12.82 MB / 0.6387 GB Notification: Performance of sort global known variables: time 1.4e-07/0.253, allocations: 0 / 0.814 GB, free: 12.82 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.0007531/0.2537, allocations: 200 kB / 0.8142 GB, free: 12.63 MB / 0.6387 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 (42): * Single equations (assignments): 42 * 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 0.001391/0.2551, allocations: 1.357 MB / 0.8156 GB, free: 11.22 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.001833/0.257, allocations: 1.029 MB / 0.8166 GB, free: 10.2 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 2.405e-06/0.257, allocations: 0 / 0.8166 GB, free: 10.2 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.0005366/0.2575, allocations: 308.1 kB / 0.8169 GB, free: 9.895 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007626/0.2583, allocations: 123.5 kB / 0.817 GB, free: 9.781 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006084/0.2644, allocations: 4.832 MB / 0.8217 GB, free: 4.652 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003921/0.2648, allocations: 0.8832 MB / 0.8226 GB, free: 3.742 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.0005667/0.2654, allocations: 208 kB / 0.8228 GB, free: 3.535 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002725/0.2657, allocations: 159.4 kB / 0.8229 GB, free: 3.379 MB / 0.6387 GB Notification: Performance of SimCode: time 4.51e-07/0.2657, allocations: 0 / 0.8229 GB, free: 3.379 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.4979/0.7636, allocations: 10.5 MB / 0.8332 GB, free: 9.082 MB / 0.6544 GB Notification: Performance of buildModelFMU: Generate platform static: time 9.157/9.92, allocations: 6.359 kB / 0.8332 GB, free: 9.078 MB / 0.6544 GB (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Electrical_AC_ThreePhasesBalanced_Loads_Examples_ParallelLoads_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Electrical_AC_ThreePhasesBalanced_Loads_Examples_ParallelLoads.fmu > Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads.pipe 2>&1)