Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo)
Using package Buildings with version 8.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo)
Running command: translateModel(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure")
translateModel(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo): time 3.229/3.229, allocations: 287.3 MB / 302.3 MB, free: 8.324 MB / 234.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001643/0.001642, allocations: 192 kB / 370.8 MB, free: 10.85 MB / 298.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 2.31/2.31, allocations: 205.4 MB / 0.6295 GB, free: 10.51 MB / 458.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001118/0.001118, allocations: 93.59 kB / 0.7428 GB, free: 6.516 MB / 0.5573 GB
Notification: Performance of FrontEnd - loaded program: time 0.0005229/0.000523, allocations: 11.36 kB / 0.8657 GB, free: 140.9 MB / 0.6198 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2384/0.239, allocations: 115.3 MB / 0.9783 GB, free: 28.29 MB / 0.6198 GB
Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure): time 0.006243/0.2453, allocations: 2.851 MB / 0.981 GB, free: 25.42 MB / 0.6198 GB
Notification: Performance of NFInst.instExpressions: time 0.006169/0.2515, allocations: 2.19 MB / 0.9832 GB, free: 23.21 MB / 0.6198 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001371/0.253, allocations: 19.94 kB / 0.9832 GB, free: 23.2 MB / 0.6198 GB
Notification: Performance of NFTyping.typeComponents: time 0.0005429/0.2536, allocations: 75.09 kB / 0.9833 GB, free: 23.12 MB / 0.6198 GB
Notification: Performance of NFTyping.typeBindings: time 0.001525/0.2551, allocations: 163.4 kB / 0.9834 GB, free: 22.96 MB / 0.6198 GB
Notification: Performance of NFTyping.typeClassSections: time 0.002521/0.2577, allocations: 431.5 kB / 0.9838 GB, free: 22.54 MB / 0.6198 GB
Notification: Performance of NFFlatten.flatten: time 0.002414/0.2601, allocations: 0.7025 MB / 0.9845 GB, free: 21.84 MB / 0.6198 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001196/0.2614, allocations: 392.8 kB / 0.9849 GB, free: 21.44 MB / 0.6198 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.000629/0.2621, allocations: 266.7 kB / 0.9852 GB, free: 21.18 MB / 0.6198 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0005853/0.2627, allocations: 322.1 kB / 0.9855 GB, free: 20.86 MB / 0.6198 GB
Notification: Performance of NFPackage.collectConstants: time 0.0001745/0.2629, allocations: 32 kB / 0.9855 GB, free: 20.83 MB / 0.6198 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0002343/0.2631, allocations: 51.98 kB / 0.9855 GB, free: 20.78 MB / 0.6198 GB
Notification: Performance of NFScalarize.scalarize: time 0.0002041/0.2634, allocations: 135.3 kB / 0.9857 GB, free: 20.65 MB / 0.6198 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002252/0.2636, allocations: 181.2 kB / 0.9859 GB, free: 20.46 MB / 0.6198 GB
Notification: Performance of NFConvertDAE.convert: time 0.001737/0.2654, allocations: 1.356 MB / 0.9872 GB, free: 19.11 MB / 0.6198 GB
Notification: Performance of FrontEnd - DAE generated: time 4.488e-06/0.2654, allocations: 0 / 0.9872 GB, free: 19.11 MB / 0.6198 GB
Notification: Performance of FrontEnd: time 2.655e-06/0.2655, allocations: 0 / 0.9872 GB, free: 19.11 MB / 0.6198 GB
Notification: Performance of Transformations before backend: time 5.171e-05/0.2655, allocations: 0 / 0.9872 GB, free: 19.11 MB / 0.6198 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 209
 * Number of variables: 209
Notification: Performance of Generate backend data structure: time 0.00477/0.2703, allocations: 1.197 MB / 0.9883 GB, free: 17.85 MB / 0.6198 GB
Notification: Performance of prepare preOptimizeDAE: time 5.51e-05/0.2704, allocations: 16.02 kB / 0.9884 GB, free: 17.84 MB / 0.6198 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005266/0.2709, allocations: 118.7 kB / 0.9885 GB, free: 17.72 MB / 0.6198 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00211/0.2731, allocations: 0.6252 MB / 0.9891 GB, free: 17.05 MB / 0.6198 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000239/0.2734, allocations: 151.1 kB / 0.9892 GB, free: 16.89 MB / 0.6198 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003512/0.2737, allocations: 88 kB / 0.9893 GB, free: 16.8 MB / 0.6198 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.003737/0.2775, allocations: 0.8657 MB / 0.9902 GB, free: 15.91 MB / 0.6198 GB
Notification: Performance of preOpt findStateOrder (simulation): time 5.969e-05/0.2776, allocations: 0 / 0.9902 GB, free: 15.91 MB / 0.6198 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00017/0.2778, allocations: 40 kB / 0.9902 GB, free: 15.88 MB / 0.6198 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.063e-05/0.2779, allocations: 20 kB / 0.9902 GB, free: 15.86 MB / 0.6198 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003797/0.2817, allocations: 0.7183 MB / 0.9909 GB, free: 15.14 MB / 0.6198 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00916/0.2909, allocations: 2.837 MB / 0.9937 GB, free: 12.2 MB / 0.6198 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.003101/0.294, allocations: 0.5433 MB / 0.9942 GB, free: 11.64 MB / 0.6198 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0001017/0.2942, allocations: 12.42 kB / 0.9942 GB, free: 11.63 MB / 0.6198 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001471/0.2957, allocations: 321.5 kB / 0.9945 GB, free: 11.31 MB / 0.6198 GB
Notification: Performance of pre-optimization done (n=52): time 5.33e-06/0.2957, allocations: 0 / 0.9945 GB, free: 11.31 MB / 0.6198 GB
Notification: Performance of matching and sorting (n=52): time 0.003756/0.2995, allocations: 0.729 MB / 0.9952 GB, free: 10.57 MB / 0.6198 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001028/0.2997, allocations: 133 kB / 0.9954 GB, free: 10.41 MB / 0.6198 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00191/0.3016, allocations: 0.7075 MB / 0.9961 GB, free: 9.699 MB / 0.6198 GB
Notification: Performance of collectPreVariables (initialization): time 0.0002161/0.3019, allocations: 45.7 kB / 0.9961 GB, free: 9.648 MB / 0.6198 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006107/0.3025, allocations: 470.9 kB / 0.9966 GB, free: 9.18 MB / 0.6198 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0002959/0.3028, allocations: 173.5 kB / 0.9967 GB, free: 9.008 MB / 0.6198 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001021/0.3029, allocations: 16 kB / 0.9967 GB, free: 8.992 MB / 0.6198 GB
Notification: Performance of setup shared object (initialization): time 0.0002078/0.3032, allocations: 386.8 kB / 0.9971 GB, free: 8.605 MB / 0.6198 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.001452/0.3046, allocations: 261.9 kB / 0.9974 GB, free: 8.348 MB / 0.6198 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.001647/0.3063, allocations: 0.5082 MB / 0.9979 GB, free: 7.734 MB / 0.6198 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001568/0.3079, allocations: 331.7 kB / 0.9982 GB, free: 7.406 MB / 0.6198 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.405e-05/0.308, allocations: 7.938 kB / 0.9982 GB, free: 7.398 MB / 0.6198 GB
Notification: Performance of matching and sorting (n=97) (initialization): time 0.004036/0.312, allocations: 0.8668 MB / 0.999 GB, free: 6.52 MB / 0.6198 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0007878/0.3129, allocations: 2.473 MB / 1.001 GB, free: 3.848 MB / 0.6198 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.79e-05/0.313, allocations: 8 kB / 1.001 GB, free: 3.84 MB / 0.6198 GB
Notification: Performance of postOpt tearingSystem (initialization): time 4.193e-05/0.313, allocations: 12 kB / 1.001 GB, free: 3.828 MB / 0.6198 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001683/0.3147, allocations: 175.7 kB / 1.002 GB, free: 3.656 MB / 0.6198 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.537e-05/0.3148, allocations: 19.92 kB / 1.002 GB, free: 3.637 MB / 0.6198 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001851/0.3167, allocations: 170.9 kB / 1.002 GB, free: 3.469 MB / 0.6198 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001889/0.3169, allocations: 35.98 kB / 1.002 GB, free: 3.434 MB / 0.6198 GB
Notification: Performance of prepare postOptimizeDAE: time 1.984e-05/0.3169, allocations: 4 kB / 1.002 GB, free: 3.43 MB / 0.6198 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002826/0.3198, allocations: 0.7095 MB / 1.003 GB, free: 2.715 MB / 0.6198 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.203e-05/0.3198, allocations: 4 kB / 1.003 GB, free: 2.711 MB / 0.6198 GB
Notification: Performance of postOpt tearingSystem (initialization): time 2.362e-05/0.3199, allocations: 12 kB / 1.003 GB, free: 2.699 MB / 0.6198 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001382/0.3213, allocations: 148.4 kB / 1.003 GB, free: 2.555 MB / 0.6198 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.734e-05/0.3214, allocations: 8 kB / 1.003 GB, free: 2.547 MB / 0.6198 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001572/0.3229, allocations: 143.4 kB / 1.003 GB, free: 2.406 MB / 0.6198 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001694/0.3232, allocations: 36 kB / 1.003 GB, free: 2.371 MB / 0.6198 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 28
 * Number of states: 0 ()
 * Number of discrete variables: 13 ($whenCondition3,$whenCondition4,$whenCondition5,$whenCondition2,$whenCondition1,$PRE.retFanPre.movMea.mode,retFanPre.movMea.mode,$PRE.yFan.y,yFan.y,$PRE.retFanPre1.movMea.mode,retFanPre1.movMea.mode,$PRE.retFanPre2.movMea.mode,retFanPre2.movMea.mode)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (95):
 * Single equations (assignments): 94
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of prepare postOptimizeDAE: time 0.0008753/0.3241, allocations: 326.8 kB / 1.003 GB, free: 2.043 MB / 0.6198 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000254/0.3243, allocations: 82.92 kB / 1.003 GB, free: 1.961 MB / 0.6198 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003103/0.3274, allocations: 0.6241 MB / 1.004 GB, free: 1.328 MB / 0.6198 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.719e-05/0.3275, allocations: 8 kB / 1.004 GB, free: 1.32 MB / 0.6198 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.089e-05/0.3275, allocations: 0 / 1.004 GB, free: 1.32 MB / 0.6198 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.763e-05/0.3276, allocations: 0 / 1.004 GB, free: 1.32 MB / 0.6198 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001718/0.3293, allocations: 0.7434 MB / 1.005 GB, free: 0.5273 MB / 0.6198 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.967e-06/0.3294, allocations: 0 / 1.005 GB, free: 0.5273 MB / 0.6198 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001308/0.3307, allocations: 119.9 kB / 1.005 GB, free: 420 kB / 0.6198 GB
Notification: Performance of postOpt tearingSystem (simulation): time 1.414e-05/0.3307, allocations: 0 / 1.005 GB, free: 420 kB / 0.6198 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.733e-05/0.3309, allocations: 15.95 kB / 1.005 GB, free: 404 kB / 0.6198 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.436e-06/0.3309, allocations: 0 / 1.005 GB, free: 404 kB / 0.6198 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.85e-06/0.3309, allocations: 7.922 kB / 1.005 GB, free: 396 kB / 0.6198 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004346/0.3353, allocations: 0.8707 MB / 1.006 GB, free: 15.5 MB / 0.6355 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0004041/0.3357, allocations: 171.9 kB / 1.006 GB, free: 15.31 MB / 0.6355 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002355/0.336, allocations: 12 kB / 1.006 GB, free: 15.3 MB / 0.6355 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008778/0.3369, allocations: 59.84 kB / 1.006 GB, free: 15.24 MB / 0.6355 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001895/0.3371, allocations: 40.52 kB / 1.006 GB, free: 15.2 MB / 0.6355 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.295e-05/0.3372, allocations: 19.98 kB / 1.006 GB, free: 15.18 MB / 0.6355 GB
Notification: Performance of sorting global known variables: time 0.001426/0.3386, allocations: 479 kB / 1.006 GB, free: 14.71 MB / 0.6355 GB
Notification: Performance of sort global known variables: time 1.282e-06/0.3387, allocations: 0 / 1.006 GB, free: 14.71 MB / 0.6355 GB
Notification: Performance of remove unused functions: time 0.002272/0.341, allocations: 310.8 kB / 1.007 GB, free: 14.41 MB / 0.6355 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 3 (retFanPre.movMea.mu,retFanPre1.movMea.mu,retFanPre2.movMea.mu)
 * Number of discrete variables: 9 ($whenCondition5,$whenCondition3,$whenCondition4,$whenCondition2,$whenCondition1,retFanPre.movMea.mode,yFan.y,retFanPre1.movMea.mode,retFanPre2.movMea.mode)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (58):
 * Single equations (assignments): 54
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 4
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 0.0003695/0.3414, allocations: 127.1 kB / 1.007 GB, free: 14.27 MB / 0.6355 GB
Notification: Performance of simCode: created initialization part: time 0.005073/0.3465, allocations: 1.098 MB / 1.008 GB, free: 13.16 MB / 0.6355 GB
Notification: Performance of simCode: created event and clocks part: time 7.735e-06/0.3465, allocations: 4.062 kB / 1.008 GB, free: 13.15 MB / 0.6355 GB
Notification: Performance of simCode: created simulation system equations: time 0.00144/0.348, allocations: 267.1 kB / 1.008 GB, free: 12.89 MB / 0.6355 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001901/0.3499, allocations: 160.5 kB / 1.008 GB, free: 12.74 MB / 0.6355 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005676/0.3557, allocations: 1.6 MB / 1.01 GB, free: 11.11 MB / 0.6355 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001069/0.3568, allocations: 0.9829 MB / 1.011 GB, free: 10.11 MB / 0.6355 GB
Notification: Performance of simCode: alias equations: time 0.001431/0.3583, allocations: 114.1 kB / 1.011 GB, free: 9.992 MB / 0.6355 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004142/0.3587, allocations: 63.42 kB / 1.011 GB, free: 9.93 MB / 0.6355 GB
Notification: Performance of SimCode: time 1.754e-06/0.3587, allocations: 0 / 1.011 GB, free: 9.93 MB / 0.6355 GB
Notification: Performance of Templates: time 0.03892/0.3976, allocations: 8.444 MB / 1.019 GB, free: 1.602 MB / 0.6355 GB
make -j1 -f Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure.makefile
(rm -f Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure.pipe ; mkfifo Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure.pipe ; head -c 1048576 < Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure.pipe >> ../files/Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure.sim & ./Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.MultiZone.VAV.SetPoints.Validation.ReturnFanDirectPressure.pipe 2>&1)