Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.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/BuildSysPro 3.6.0/package.mo", uses=false)
Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47")
translateModel(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008691/0.0008692, allocations: 98.56 kB / 16.02 MB, free: 76 kB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009372/0.0009372, allocations: 180.2 kB / 16.92 MB, free: 6.918 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.559/1.559, allocations: 223.3 MB / 241 MB, free: 5.25 MB / 190.1 MB
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo.
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/package.mo): time 1.042/1.042, allocations: 143.2 MB / 435.3 MB, free: 13.65 MB / 350.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.0003726/0.0003727, allocations: 8 kB / 0.517 GB, free: 11.13 MB / 430.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1923/0.1927, allocations: 83.4 MB / 0.5985 GB, free: 7.691 MB / 0.4981 GB
Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47): time 0.3656/0.5584, allocations: 39.85 MB / 0.6374 GB, free: 19.9 MB / 0.4981 GB
Notification: Performance of NFInst.instExpressions: time 0.00694/0.5654, allocations: 4.096 MB / 0.6414 GB, free: 17.02 MB / 0.4981 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001249/0.5667, allocations: 28.69 kB / 0.6414 GB, free: 17.01 MB / 0.4981 GB
Notification: Performance of NFTyping.typeComponents: time 0.001019/0.5677, allocations: 289.6 kB / 0.6417 GB, free: 16.84 MB / 0.4981 GB
Notification: Performance of NFTyping.typeBindings: time 0.005897/0.5736, allocations: 2.283 MB / 0.6439 GB, free: 15.79 MB / 0.4981 GB
Notification: Performance of NFTyping.typeClassSections: time 0.002297/0.5759, allocations: 0.8417 MB / 0.6448 GB, free: 15.32 MB / 0.4981 GB
Notification: Performance of NFFlatten.flatten: time 0.003199/0.5791, allocations: 2.886 MB / 0.6476 GB, free: 14.27 MB / 0.4981 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0007762/0.5799, allocations: 0.5258 MB / 0.6481 GB, free: 14.05 MB / 0.4981 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003641/0.5836, allocations: 2.442 MB / 0.6505 GB, free: 13.49 MB / 0.4981 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0008615/0.5845, allocations: 0.5546 MB / 0.651 GB, free: 13.25 MB / 0.4981 GB
Notification: Performance of NFPackage.collectConstants: time 7.616e-05/0.5846, allocations: 22.16 kB / 0.651 GB, free: 13.25 MB / 0.4981 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.005773/0.5903, allocations: 3.365 MB / 0.6543 GB, free: 12.49 MB / 0.4981 GB
Notification: Performance of NFScalarize.scalarize: time 0.0003211/0.5907, allocations: 132.3 kB / 0.6545 GB, free: 12.43 MB / 0.4981 GB
Notification: Performance of NFVerifyModel.verify: time 0.0006258/0.5913, allocations: 380.3 kB / 0.6548 GB, free: 12.2 MB / 0.4981 GB
Notification: Performance of NFConvertDAE.convert: time 0.002897/0.5942, allocations: 1.377 MB / 0.6562 GB, free: 11.89 MB / 0.4981 GB
Notification: Performance of FrontEnd - DAE generated: time 5.129e-06/0.5943, allocations: 0 / 0.6562 GB, free: 11.89 MB / 0.4981 GB
Notification: Performance of FrontEnd: time 2.304e-06/0.5943, allocations: 3.938 kB / 0.6562 GB, free: 11.88 MB / 0.4981 GB
Notification: Performance of Transformations before backend: time 1.736e-05/0.5943, allocations: 4 kB / 0.6562 GB, free: 11.88 MB / 0.4981 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 112
 * Number of variables: 112
Notification: Performance of Generate backend data structure: time 0.001923/0.5962, allocations: 1.044 MB / 0.6572 GB, free: 11.11 MB / 0.4981 GB
Notification: Performance of prepare preOptimizeDAE: time 6.111e-05/0.5963, allocations: 9.641 kB / 0.6572 GB, free: 11.11 MB / 0.4981 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00161/0.5979, allocations: 156.2 kB / 0.6573 GB, free: 11.06 MB / 0.4981 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.002159/0.6001, allocations: 0.8019 MB / 0.6581 GB, free: 10.56 MB / 0.4981 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.744e-05/0.6002, allocations: 31.97 kB / 0.6582 GB, free: 10.55 MB / 0.4981 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001079/0.6003, allocations: 50.78 kB / 0.6582 GB, free: 10.53 MB / 0.4981 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.00113/0.6014, allocations: 0.5147 MB / 0.6587 GB, free: 10.26 MB / 0.4981 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.488e-05/0.6015, allocations: 5 kB / 0.6587 GB, free: 10.26 MB / 0.4981 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.514e-05/0.6015, allocations: 17.53 kB / 0.6587 GB, free: 10.25 MB / 0.4981 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.496e-05/0.6015, allocations: 14.59 kB / 0.6587 GB, free: 10.24 MB / 0.4981 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006224/0.6022, allocations: 346.2 kB / 0.6591 GB, free: 10.12 MB / 0.4981 GB
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 0.003013/0.6052, allocations: 2.453 MB / 0.6615 GB, free: 8.207 MB / 0.4981 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0004098/0.6056, allocations: 265.3 kB / 0.6617 GB, free: 8.098 MB / 0.4981 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0001917/0.6058, allocations: 137.9 kB / 0.6619 GB, free: 8.043 MB / 0.4981 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0006409/0.6065, allocations: 1.38 MB / 0.6632 GB, free: 6.426 MB / 0.4981 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.515e-05/0.6065, allocations: 36.75 kB / 0.6632 GB, free: 6.383 MB / 0.4981 GB
Notification: Performance of pre-optimization done (n=31): time 2.354e-06/0.6065, allocations: 1.062 kB / 0.6632 GB, free: 6.383 MB / 0.4981 GB
Notification: Performance of matching and sorting (n=43): time 0.004443/0.611, allocations: 1.785 MB / 0.665 GB, free: 5.379 MB / 0.4981 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.781e-05/0.611, allocations: 59.69 kB / 0.665 GB, free: 5.312 MB / 0.4981 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006199/0.6116, allocations: 0.4921 MB / 0.6655 GB, free: 5.086 MB / 0.4981 GB
Notification: Performance of collectPreVariables (initialization): time 3.612e-05/0.6117, allocations: 36.02 kB / 0.6656 GB, free: 5.047 MB / 0.4981 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0001956/0.6119, allocations: 332.5 kB / 0.6659 GB, free: 4.777 MB / 0.4981 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001243/0.612, allocations: 157.8 kB / 0.666 GB, free: 4.652 MB / 0.4981 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 6.321e-05/0.6121, allocations: 44.62 kB / 0.6661 GB, free: 4.621 MB / 0.4981 GB
Notification: Performance of setup shared object (initialization): time 9.866e-05/0.6122, allocations: 365.3 kB / 0.6664 GB, free: 4.285 MB / 0.4981 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002456/0.6124, allocations: 145.6 kB / 0.6666 GB, free: 4.234 MB / 0.4981 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003177/0.6127, allocations: 268.1 kB / 0.6668 GB, free: 4.047 MB / 0.4981 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0006151/0.6134, allocations: 434.8 kB / 0.6672 GB, free: 3.781 MB / 0.4981 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.565e-06/0.6134, allocations: 5.031 kB / 0.6672 GB, free: 3.777 MB / 0.4981 GB
Notification: Performance of matching and sorting (n=57) (initialization): time 0.001044/0.6144, allocations: 0.6005 MB / 0.6678 GB, free: 3.5 MB / 0.4981 GB
Notification: Performance of prepare postOptimizeDAE: time 6.991e-05/0.6145, allocations: 182.3 kB / 0.668 GB, free: 3.289 MB / 0.4981 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.648e-06/0.6145, allocations: 4.062 kB / 0.668 GB, free: 3.289 MB / 0.4981 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0008008/0.6153, allocations: 188 kB / 0.6682 GB, free: 3.234 MB / 0.4981 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002886/0.6156, allocations: 82.05 kB / 0.6682 GB, free: 3.215 MB / 0.4981 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008838/0.6165, allocations: 1.343 MB / 0.6696 GB, free: 2.035 MB / 0.4981 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005075/0.6171, allocations: 36.98 kB / 0.6696 GB, free: 2.02 MB / 0.4981 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.091e-05/0.6171, allocations: 23.47 kB / 0.6696 GB, free: 2.016 MB / 0.4981 GB
Notification: Performance of prepare postOptimizeDAE: time 9.237e-06/0.6171, allocations: 4.094 kB / 0.6696 GB, free: 2.016 MB / 0.4981 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0008673/0.618, allocations: 0.5322 MB / 0.6701 GB, free: 1.781 MB / 0.4981 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.729e-06/0.618, allocations: 3 kB / 0.6701 GB, free: 1.781 MB / 0.4981 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.000778/0.6188, allocations: 194 kB / 0.6703 GB, free: 1.723 MB / 0.4981 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002208/0.619, allocations: 69.53 kB / 0.6704 GB, free: 1.715 MB / 0.4981 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008098/0.6199, allocations: 1.348 MB / 0.6717 GB, free: 0.5312 MB / 0.4981 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004964/0.6204, allocations: 40.33 kB / 0.6718 GB, free: 0.5117 MB / 0.4981 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.933e-05/0.6204, allocations: 23.42 kB / 0.6718 GB, free: 0.5078 MB / 0.4981 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 13
 * 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 (41):
 * Single equations (assignments): 39
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 0 systems
 * Non-linear torn systems (#iteration vars, #inner vars): 2 systems
   {(2,8), (1,7)}
Notification: Performance of prepare postOptimizeDAE: time 0.0003561/0.6208, allocations: 283.9 kB / 0.672 GB, free: 272 kB / 0.4981 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001022/0.6209, allocations: 65.47 kB / 0.6721 GB, free: 236 kB / 0.4981 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001258/0.6222, allocations: 0.6351 MB / 0.6727 GB, free: 15.95 MB / 0.5137 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.262e-05/0.6222, allocations: 6.594 kB / 0.6727 GB, free: 15.95 MB / 0.5137 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.661e-06/0.6222, allocations: 0 / 0.6727 GB, free: 15.95 MB / 0.5137 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001025/0.6232, allocations: 0.661 MB / 0.6734 GB, free: 15.5 MB / 0.5137 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002597/0.6258, allocations: 1.45 MB / 0.6748 GB, free: 14.71 MB / 0.5137 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.972e-06/0.6259, allocations: 4.594 kB / 0.6748 GB, free: 14.71 MB / 0.5137 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001807/0.626, allocations: 47.31 kB / 0.6748 GB, free: 14.71 MB / 0.5137 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0009923/0.627, allocations: 215.1 kB / 0.675 GB, free: 14.65 MB / 0.5137 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.81e-05/0.6271, allocations: 18.09 kB / 0.6751 GB, free: 14.64 MB / 0.5137 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001159/0.6283, allocations: 1.339 MB / 0.6764 GB, free: 13.45 MB / 0.5137 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.116e-06/0.6283, allocations: 1.547 kB / 0.6764 GB, free: 13.45 MB / 0.5137 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001497/0.6298, allocations: 0.8714 MB / 0.6772 GB, free: 13 MB / 0.5137 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0003151/0.6301, allocations: 196.8 kB / 0.6774 GB, free: 12.84 MB / 0.5137 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.565e-05/0.6302, allocations: 11.88 kB / 0.6774 GB, free: 12.83 MB / 0.5137 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004995/0.6307, allocations: 33.39 kB / 0.6775 GB, free: 12.82 MB / 0.5137 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.893e-05/0.6308, allocations: 27.88 kB / 0.6775 GB, free: 12.81 MB / 0.5137 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.676e-05/0.6308, allocations: 24.66 kB / 0.6775 GB, free: 12.8 MB / 0.5137 GB
Notification: Performance of sorting global known variables: time 0.0004842/0.6313, allocations: 354.5 kB / 0.6778 GB, free: 12.64 MB / 0.5137 GB
Notification: Performance of sort global known variables: time 2.6e-07/0.6313, allocations: 1.25 kB / 0.6778 GB, free: 12.64 MB / 0.5137 GB
Notification: Performance of remove unused functions: time 0.001603/0.6329, allocations: 458.4 kB / 0.6783 GB, free: 12.56 MB / 0.5137 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 2
 * Number of states: 2 (vol.dynBal.medium.T,vol1.dynBal.medium.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 (30):
 * Single equations (assignments): 27
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 1
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 0 systems
 * Non-linear torn systems (#iteration vars, #inner vars): 2 systems
   {(2,7), (2,5)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.001241/0.6342, allocations: 454.3 kB / 0.6787 GB, free: 12.37 MB / 0.5137 GB
Notification: Performance of simCode: created initialization part: time 0.001658/0.6359, allocations: 0.6819 MB / 0.6794 GB, free: 12.14 MB / 0.5137 GB
Notification: Performance of simCode: created event and clocks part: time 9.367e-06/0.6359, allocations: 0 / 0.6794 GB, free: 12.14 MB / 0.5137 GB
Notification: Performance of simCode: created simulation system equations: time 0.0005198/0.6364, allocations: 238.2 kB / 0.6796 GB, free: 12.07 MB / 0.5137 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001844/0.6383, allocations: 314.8 kB / 0.6799 GB, free: 12 MB / 0.5137 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002528/0.6408, allocations: 1.555 MB / 0.6814 GB, free: 11 MB / 0.5137 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005316/0.6414, allocations: 0.9094 MB / 0.6823 GB, free: 10.29 MB / 0.5137 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002096/0.6416, allocations: 71.95 kB / 0.6824 GB, free: 10.27 MB / 0.5137 GB
Notification: Performance of SimCode: time 5.61e-07/0.6416, allocations: 4 kB / 0.6824 GB, free: 10.26 MB / 0.5137 GB
Notification: Performance of Templates: time 0.03662/0.6782, allocations: 18.57 MB / 0.7005 GB, free: 2.52 MB / 0.5137 GB
make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.makefile
(rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47  -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe 2>&1)