Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_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/IBPSA 4.0.0-master/package.mo", uses=false)
Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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(IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47")
translateModel(IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_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 0.00167/0.00167, allocations: 101.2 kB / 16.27 MB, free: 5.969 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001988/0.001988, allocations: 194.2 kB / 17.2 MB, free: 5.598 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.358/1.358, allocations: 222.9 MB / 240.9 MB, free: 15.21 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7999/0.7999, allocations: 122.9 MB / 413.9 MB, free: 15.92 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001663/0.001664, allocations: 56.05 kB / 0.4911 GB, free: 7.438 MB / 414.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4312/0.4329, allocations: 77.93 MB / 0.5672 GB, free: 32.66 MB / 446.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47): time 0.03943/0.4724, allocations: 40.31 MB / 0.6066 GB, free: 2.172 MB / 446.1 MB
Notification: Performance of NFInst.instExpressions: time 0.008127/0.4805, allocations: 4.081 MB / 0.6106 GB, free: 14.35 MB / 462.1 MB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001729/0.4823, allocations: 35.75 kB / 0.6106 GB, free: 14.31 MB / 462.1 MB
Notification: Performance of NFTyping.typeComponents: time 0.001247/0.4836, allocations: 357.6 kB / 0.6109 GB, free: 13.96 MB / 462.1 MB
Notification: Performance of NFTyping.typeBindings: time 0.007311/0.4909, allocations: 2.493 MB / 0.6134 GB, free: 11.46 MB / 462.1 MB
Notification: Performance of NFTyping.typeClassSections: time 0.002653/0.4936, allocations: 0.9219 MB / 0.6143 GB, free: 10.55 MB / 462.1 MB
Notification: Performance of NFFlatten.flatten: time 0.00333/0.4969, allocations: 2.189 MB / 0.6164 GB, free: 8.352 MB / 462.1 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.001006/0.4979, allocations: 0.6411 MB / 0.617 GB, free: 7.699 MB / 462.1 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.004686/0.5026, allocations: 2.373 MB / 0.6193 GB, free: 5.328 MB / 462.1 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.001279/0.5039, allocations: 0.56 MB / 0.6199 GB, free: 4.766 MB / 462.1 MB
Notification: Performance of NFPackage.collectConstants: time 0.0001553/0.5041, allocations: 56 kB / 0.6199 GB, free: 4.711 MB / 462.1 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.006186/0.5103, allocations: 3.151 MB / 0.623 GB, free: 1.555 MB / 462.1 MB
Notification: Performance of NFScalarize.scalarize: time 0.0002679/0.5106, allocations: 179.4 kB / 0.6232 GB, free: 1.379 MB / 462.1 MB
Notification: Performance of NFVerifyModel.verify: time 0.0006018/0.5112, allocations: 398.1 kB / 0.6236 GB, free: 0.9883 MB / 462.1 MB
Notification: Performance of NFConvertDAE.convert: time 0.004607/0.5158, allocations: 1.82 MB / 0.6254 GB, free: 15.16 MB / 478.1 MB
Notification: Performance of FrontEnd - DAE generated: time 6.132e-06/0.5159, allocations: 0 / 0.6254 GB, free: 15.16 MB / 478.1 MB
Notification: Performance of FrontEnd: time 1.303e-06/0.5159, allocations: 3.938 kB / 0.6254 GB, free: 15.16 MB / 478.1 MB
Notification: Performance of Transformations before backend: time 1.194e-05/0.5159, allocations: 0 / 0.6254 GB, free: 15.16 MB / 478.1 MB
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 0.002016/0.5179, allocations: 1.191 MB / 0.6265 GB, free: 13.91 MB / 478.1 MB
Notification: Performance of prepare preOptimizeDAE: time 4.043e-05/0.518, allocations: 12.62 kB / 0.6265 GB, free: 13.9 MB / 478.1 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001934/0.5199, allocations: 155.9 kB / 0.6267 GB, free: 13.75 MB / 478.1 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001716/0.5217, allocations: 0.7485 MB / 0.6274 GB, free: 12.96 MB / 478.1 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.954e-05/0.5217, allocations: 29 kB / 0.6274 GB, free: 12.93 MB / 478.1 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 8.171e-05/0.5218, allocations: 55.89 kB / 0.6275 GB, free: 12.88 MB / 478.1 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008314/0.5226, allocations: 0.5196 MB / 0.628 GB, free: 12.32 MB / 478.1 MB
Notification: Performance of preOpt findStateOrder (simulation): time 1.785e-05/0.5227, allocations: 0 / 0.628 GB, free: 12.32 MB / 478.1 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.937e-05/0.5227, allocations: 20 kB / 0.628 GB, free: 12.3 MB / 478.1 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.765e-05/0.5227, allocations: 12 kB / 0.628 GB, free: 12.29 MB / 478.1 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005317/0.5233, allocations: 335.7 kB / 0.6284 GB, free: 11.96 MB / 478.1 MB
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 0.002959/0.5263, allocations: 2.459 MB / 0.6308 GB, free: 9.332 MB / 478.1 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.0004371/0.5267, allocations: 280 kB / 0.631 GB, free: 9.051 MB / 478.1 MB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002009/0.5269, allocations: 140.8 kB / 0.6312 GB, free: 8.91 MB / 478.1 MB
Notification: Performance of preOpt evalFunc (simulation): time 0.0009777/0.5279, allocations: 1.374 MB / 0.6325 GB, free: 7.223 MB / 478.1 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.961e-05/0.5279, allocations: 34.56 kB / 0.6325 GB, free: 7.18 MB / 478.1 MB
Notification: Performance of pre-optimization done (n=31): time 2.124e-06/0.528, allocations: 0 / 0.6325 GB, free: 7.18 MB / 478.1 MB
Notification: Performance of matching and sorting (n=43): time 0.004838/0.5328, allocations: 1.794 MB / 0.6343 GB, free: 5.289 MB / 478.1 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.201e-05/0.5329, allocations: 59.34 kB / 0.6343 GB, free: 5.219 MB / 478.1 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006444/0.5335, allocations: 0.5029 MB / 0.6348 GB, free: 4.707 MB / 478.1 MB
Notification: Performance of collectPreVariables (initialization): time 4.331e-05/0.5336, allocations: 33.7 kB / 0.6349 GB, free: 4.668 MB / 478.1 MB
Notification: Performance of collectInitialEqns (initialization): time 0.0002672/0.5338, allocations: 324.4 kB / 0.6352 GB, free: 4.344 MB / 478.1 MB
Notification: Performance of collectInitialBindings (initialization): time 0.0001544/0.534, allocations: 153.8 kB / 0.6353 GB, free: 4.191 MB / 478.1 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001473/0.5342, allocations: 98.16 kB / 0.6354 GB, free: 4.09 MB / 478.1 MB
Notification: Performance of setup shared object (initialization): time 0.0001483/0.5343, allocations: 366.8 kB / 0.6358 GB, free: 3.723 MB / 478.1 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002417/0.5346, allocations: 155 kB / 0.6359 GB, free: 3.566 MB / 478.1 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004578/0.535, allocations: 262.8 kB / 0.6362 GB, free: 3.27 MB / 478.1 MB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0006675/0.5357, allocations: 448.8 kB / 0.6366 GB, free: 2.793 MB / 478.1 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.234e-06/0.5357, allocations: 0 / 0.6366 GB, free: 2.793 MB / 478.1 MB
Notification: Performance of matching and sorting (n=57) (initialization): time 0.001028/0.5368, allocations: 0.5993 MB / 0.6372 GB, free: 2.18 MB / 478.1 MB
Notification: Performance of prepare postOptimizeDAE: time 2.434e-05/0.5368, allocations: 11.98 kB / 0.6372 GB, free: 2.168 MB / 478.1 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.051e-05/0.5368, allocations: 4 kB / 0.6372 GB, free: 2.164 MB / 478.1 MB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0007297/0.5376, allocations: 197.9 kB / 0.6374 GB, free: 1.965 MB / 478.1 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002421/0.5378, allocations: 71.84 kB / 0.6374 GB, free: 1.895 MB / 478.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00117/0.539, allocations: 1.355 MB / 0.6388 GB, free: 500 kB / 478.1 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004179/0.5394, allocations: 19.92 kB / 0.6388 GB, free: 480 kB / 478.1 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.013e-05/0.5395, allocations: 20 kB / 0.6388 GB, free: 460 kB / 478.1 MB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0004854/0.54, allocations: 314 kB / 0.6391 GB, free: 144 kB / 478.1 MB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0003417/0.5403, allocations: 266.5 kB / 0.6394 GB, free: 15.83 MB / 494.1 MB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006165/0.5409, allocations: 438.8 kB / 0.6398 GB, free: 15.36 MB / 494.1 MB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.755e-06/0.541, allocations: 0 / 0.6398 GB, free: 15.36 MB / 494.1 MB
Notification: Performance of matching and sorting (n=57) (initialization_lambda0): time 0.001379/0.5424, allocations: 0.6033 MB / 0.6404 GB, free: 14.75 MB / 494.1 MB
Notification: Performance of prepare postOptimizeDAE: time 2.066e-05/0.5424, allocations: 8.031 kB / 0.6404 GB, free: 14.74 MB / 494.1 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.853e-06/0.5424, allocations: 7.938 kB / 0.6404 GB, free: 14.73 MB / 494.1 MB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0007362/0.5432, allocations: 193.6 kB / 0.6406 GB, free: 14.54 MB / 494.1 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002275/0.5434, allocations: 71.84 kB / 0.6406 GB, free: 14.46 MB / 494.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001438/0.5448, allocations: 1.347 MB / 0.642 GB, free: 13.07 MB / 494.1 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005069/0.5454, allocations: 16.02 kB / 0.642 GB, free: 13.05 MB / 494.1 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.852e-05/0.5454, allocations: 24 kB / 0.642 GB, free: 13.03 MB / 494.1 MB
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 0.0003168/0.5457, allocations: 216.2 kB / 0.6422 GB, free: 12.81 MB / 494.1 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001589/0.5459, allocations: 59.25 kB / 0.6423 GB, free: 12.75 MB / 494.1 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001514/0.5474, allocations: 0.6275 MB / 0.6429 GB, free: 12.12 MB / 494.1 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.651e-05/0.5475, allocations: 15.94 kB / 0.6429 GB, free: 12.1 MB / 494.1 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 7.383e-06/0.5475, allocations: 0 / 0.6429 GB, free: 12.1 MB / 494.1 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001097/0.5486, allocations: 0.6512 MB / 0.6435 GB, free: 11.39 MB / 494.1 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002869/0.5515, allocations: 1.453 MB / 0.6449 GB, free: 9.875 MB / 494.1 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.247e-06/0.5515, allocations: 0 / 0.6449 GB, free: 9.875 MB / 494.1 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002003/0.5517, allocations: 47.91 kB / 0.645 GB, free: 9.828 MB / 494.1 MB
Notification: Performance of postOpt tearingSystem (simulation): time 0.00103/0.5527, allocations: 221.5 kB / 0.6452 GB, free: 9.605 MB / 494.1 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.586e-05/0.5528, allocations: 15.94 kB / 0.6452 GB, free: 9.59 MB / 494.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001284/0.5541, allocations: 1.323 MB / 0.6465 GB, free: 8.215 MB / 494.1 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.765e-06/0.5541, allocations: 0 / 0.6465 GB, free: 8.215 MB / 494.1 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00173/0.5558, allocations: 0.8862 MB / 0.6474 GB, free: 7.305 MB / 494.1 MB
Notification: Performance of postOpt removeConstants (simulation): time 0.0003125/0.5561, allocations: 184.4 kB / 0.6475 GB, free: 7.105 MB / 494.1 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.405e-05/0.5562, allocations: 8 kB / 0.6475 GB, free: 7.098 MB / 494.1 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003655/0.5566, allocations: 19.92 kB / 0.6476 GB, free: 7.078 MB / 494.1 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 6.626e-05/0.5567, allocations: 23.97 kB / 0.6476 GB, free: 7.055 MB / 494.1 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.379e-05/0.5567, allocations: 23.92 kB / 0.6476 GB, free: 7.031 MB / 494.1 MB
Notification: Performance of sorting global known variables: time 0.000474/0.5572, allocations: 358.9 kB / 0.648 GB, free: 6.684 MB / 494.1 MB
Notification: Performance of sort global known variables: time 1.6e-07/0.5572, allocations: 0 / 0.648 GB, free: 6.684 MB / 494.1 MB
Notification: Performance of remove unused functions: time 0.001601/0.5588, allocations: 463.8 kB / 0.6484 GB, free: 6.23 MB / 494.1 MB
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 0.00111/0.56, allocations: 468.5 kB / 0.6488 GB, free: 5.773 MB / 494.1 MB
Notification: Performance of simCode: created initialization part: time 0.001519/0.5615, allocations: 0.712 MB / 0.6495 GB, free: 5.062 MB / 494.1 MB
Notification: Performance of simCode: created event and clocks part: time 3.526e-06/0.5615, allocations: 0 / 0.6495 GB, free: 5.062 MB / 494.1 MB
Notification: Performance of simCode: created simulation system equations: time 0.0004766/0.562, allocations: 243.8 kB / 0.6498 GB, free: 4.824 MB / 494.1 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001474/0.5635, allocations: 328.1 kB / 0.6501 GB, free: 4.527 MB / 494.1 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002081/0.5656, allocations: 1.202 MB / 0.6513 GB, free: 3.293 MB / 494.1 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005064/0.5661, allocations: 0.9198 MB / 0.6522 GB, free: 2.348 MB / 494.1 MB
Notification: Performance of simCode: alias equations: time 0.0006056/0.5667, allocations: 200.5 kB / 0.6523 GB, free: 2.156 MB / 494.1 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001488/0.5669, allocations: 63.41 kB / 0.6524 GB, free: 2.094 MB / 494.1 MB
Notification: Performance of SimCode: time 4.31e-07/0.5669, allocations: 0 / 0.6524 GB, free: 2.094 MB / 494.1 MB
Notification: Performance of Templates: time 0.02842/0.5953, allocations: 16.99 MB / 0.669 GB, free: 1.316 MB / 0.4981 GB
make -j1 -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.makefile
(rm -f IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.sim & ./IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.MixingVolumes.Validation.CoupledVolumesGlycol47.pipe 2>&1)