Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes.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/Buildings 12.0.0-master/package.mo", uses=false)
Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-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(Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes")
translateModel(Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001211/0.001211, 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 0.001304/0.001304, allocations: 194.5 kB / 16.53 MB, free: 6.391 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.33/1.33, allocations: 222.9 MB / 240.2 MB, free: 4.402 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.687/2.687, allocations: 472.6 MB / 0.7451 GB, free: 4.652 MB / 0.5919 GB
Notification: Performance of FrontEnd - loaded program: time 0.001274/0.001274, allocations: 66.81 kB / 0.9121 GB, free: 33.38 MB / 0.7169 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3021/0.3034, allocations: 159.9 MB / 1.068 GB, free: 10.37 MB / 0.8262 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes): time 0.002478/0.3059, allocations: 1.331 MB / 1.07 GB, free: 9.016 MB / 0.8262 GB
Notification: Performance of NFInst.instExpressions: time 0.001948/0.3078, allocations: 1.3 MB / 1.071 GB, free: 7.707 MB / 0.8262 GB
Notification: Performance of NFInst.updateImplicitVariability: time 3.461e-05/0.3079, allocations: 0 / 1.071 GB, free: 7.707 MB / 0.8262 GB
Notification: Performance of NFTyping.typeComponents: time 7.592e-05/0.308, allocations: 7.922 kB / 1.071 GB, free: 7.699 MB / 0.8262 GB
Notification: Performance of NFTyping.typeBindings: time 0.0001932/0.3082, allocations: 40.84 kB / 1.071 GB, free: 7.66 MB / 0.8262 GB
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Math/Random.mo:1057:5-1146:31:writable] Warning: Pure function 'Modelica.Math.Random.Utilities.initializeImpureRandom' contains a call to impure function 'Modelica.Math.Random.Utilities.initializeImpureRandom.setInternalState'.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/Utilities/Clustering/KMeans.mo:96:7-96:35:writable] Warning: inertia was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed.
Notification: Performance of NFTyping.typeClassSections: time 0.0009048/0.3091, allocations: 370.9 kB / 1.071 GB, free: 7.297 MB / 0.8262 GB
Notification: Performance of NFFlatten.flatten: time 6.433e-05/0.3092, allocations: 31.86 kB / 1.071 GB, free: 7.266 MB / 0.8262 GB
Notification: Performance of NFFlatten.resolveConnections: time 4.667e-05/0.3092, allocations: 4 kB / 1.071 GB, free: 7.262 MB / 0.8262 GB
Notification: Performance of NFEvalConstants.evaluate: time 3.361e-05/0.3093, allocations: 11.98 kB / 1.071 GB, free: 7.25 MB / 0.8262 GB
Notification: Performance of NFSimplifyModel.simplify: time 6.787e-05/0.3093, allocations: 33.88 kB / 1.071 GB, free: 7.219 MB / 0.8262 GB
Notification: Performance of NFPackage.collectConstants: time 2.035e-05/0.3094, allocations: 4 kB / 1.071 GB, free: 7.215 MB / 0.8262 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0007637/0.3101, allocations: 0.4992 MB / 1.072 GB, free: 6.715 MB / 0.8262 GB
Notification: Performance of NFScalarize.scalarize: time 0.0005371/0.3107, allocations: 0.566 MB / 1.072 GB, free: 6.145 MB / 0.8262 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002217/0.3109, allocations: 305.2 kB / 1.073 GB, free: 5.844 MB / 0.8262 GB
Notification: Performance of NFConvertDAE.convert: time 0.0008497/0.3118, allocations: 0.9301 MB / 1.074 GB, free: 4.91 MB / 0.8262 GB
Notification: Performance of FrontEnd - DAE generated: time 4.248e-06/0.3118, allocations: 0 / 1.074 GB, free: 4.91 MB / 0.8262 GB
Notification: Performance of FrontEnd: time 4.027e-06/0.3118, allocations: 0 / 1.074 GB, free: 4.91 MB / 0.8262 GB
Notification: Performance of Transformations before backend: time 7.714e-06/0.3118, allocations: 7.875 kB / 1.074 GB, free: 4.902 MB / 0.8262 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 1
 * Number of variables: 1
Notification: Performance of Generate backend data structure: time 0.001105/0.3129, allocations: 1.252 MB / 1.075 GB, free: 3.594 MB / 0.8262 GB
Notification: Performance of prepare preOptimizeDAE: time 3.555e-05/0.3129, allocations: 8.031 kB / 1.075 GB, free: 3.586 MB / 0.8262 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001156/0.3131, allocations: 111.4 kB / 1.075 GB, free: 3.477 MB / 0.8262 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003733/0.3134, allocations: 483.5 kB / 1.075 GB, free: 2.957 MB / 0.8262 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.536e-06/0.3135, allocations: 384 / 1.075 GB, free: 2.957 MB / 0.8262 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 9.999e-06/0.3135, allocations: 4.375 kB / 1.075 GB, free: 2.953 MB / 0.8262 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001927/0.3137, allocations: 161.9 kB / 1.075 GB, free: 2.789 MB / 0.8262 GB
Notification: Performance of preOpt findStateOrder (simulation): time 7.173e-06/0.3137, allocations: 0 / 1.075 GB, free: 2.789 MB / 0.8262 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.566e-06/0.3137, allocations: 4 kB / 1.075 GB, free: 2.785 MB / 0.8262 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.648e-06/0.3137, allocations: 7.984 kB / 1.075 GB, free: 2.777 MB / 0.8262 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001872/0.3139, allocations: 267.8 kB / 1.076 GB, free: 2.516 MB / 0.8262 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0004559/0.3144, allocations: 0.5482 MB / 1.076 GB, free: 1.914 MB / 0.8262 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0001222/0.3145, allocations: 154.4 kB / 1.076 GB, free: 1.754 MB / 0.8262 GB
Notification: Performance of preOpt resolveLoops (simulation): time 9.648e-05/0.3146, allocations: 140.8 kB / 1.077 GB, free: 1.613 MB / 0.8262 GB
Notification: Performance of preOpt evalFunc (simulation): time 7.98e-05/0.3147, allocations: 80.66 kB / 1.077 GB, free: 1.531 MB / 0.8262 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.384e-05/0.3147, allocations: 38.5 kB / 1.077 GB, free: 1.484 MB / 0.8262 GB
Notification: Performance of pre-optimization done (n=1): time 9.22e-07/0.3147, allocations: 0 / 1.077 GB, free: 1.484 MB / 0.8262 GB
Notification: Performance of matching and sorting (n=1): time 0.0004601/0.3152, allocations: 0.5233 MB / 1.077 GB, free: 0.9531 MB / 0.8262 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.813e-05/0.3152, allocations: 51.41 kB / 1.077 GB, free: 0.8906 MB / 0.8262 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001286/0.3165, allocations: 1.391 MB / 1.079 GB, free: 15.49 MB / 0.8419 GB
Notification: Performance of collectPreVariables (initialization): time 1.567e-05/0.3166, allocations: 25.7 kB / 1.079 GB, free: 15.46 MB / 0.8419 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0003095/0.3169, allocations: 457.5 kB / 1.079 GB, free: 15.01 MB / 0.8419 GB
Notification: Performance of collectInitialBindings (initialization): time 1.071e-05/0.3169, allocations: 0 / 1.079 GB, free: 15.01 MB / 0.8419 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 9.182e-05/0.317, allocations: 117.8 kB / 1.079 GB, free: 14.89 MB / 0.8419 GB
Notification: Performance of setup shared object (initialization): time 0.0001135/0.3171, allocations: 341.9 kB / 1.079 GB, free: 14.55 MB / 0.8419 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004079/0.3175, allocations: 0.5945 MB / 1.08 GB, free: 13.95 MB / 0.8419 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004884/0.318, allocations: 0.5867 MB / 1.081 GB, free: 13.37 MB / 0.8419 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0008852/0.3189, allocations: 1.166 MB / 1.082 GB, free: 12.04 MB / 0.8419 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.843e-06/0.3189, allocations: 0 / 1.082 GB, free: 12.04 MB / 0.8419 GB
Notification: Performance of matching and sorting (n=105) (initialization): time 0.00124/0.3202, allocations: 1.392 MB / 1.083 GB, free: 10.64 MB / 0.8419 GB
Notification: Performance of prepare postOptimizeDAE: time 1.752e-05/0.3202, allocations: 7.938 kB / 1.083 GB, free: 10.64 MB / 0.8419 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.433e-05/0.3202, allocations: 3.938 kB / 1.083 GB, free: 10.63 MB / 0.8419 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.516e-05/0.3202, allocations: 4.062 kB / 1.083 GB, free: 10.63 MB / 0.8419 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 1.387e-05/0.3202, allocations: 4 kB / 1.083 GB, free: 10.62 MB / 0.8419 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.588e-06/0.3203, allocations: 0 / 1.083 GB, free: 10.62 MB / 0.8419 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001482/0.3204, allocations: 70.84 kB / 1.083 GB, free: 10.55 MB / 0.8419 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.997e-06/0.3204, allocations: 0 / 1.083 GB, free: 10.55 MB / 0.8419 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 1
 * Number of states: 0 ()
 * Number of discrete variables: 105 (cluSiz[4],cluSiz[3],cluSiz[2],cluSiz[1],labels[100],labels[99],labels[98],labels[97],labels[96],labels[95],labels[94],labels[93],labels[92],labels[91],labels[90],labels[89],labels[88],labels[87],labels[86],labels[85],labels[84],labels[83],labels[82],labels[81],labels[80],labels[79],labels[78],labels[77],labels[76],labels[75],labels[74],labels[73],labels[72],labels[71],labels[70],labels[69],labels[68],labels[67],labels[66],labels[65],labels[64],labels[63],labels[62],labels[61],labels[60],labels[59],labels[58],labels[57],labels[56],labels[55],labels[54],labels[53],labels[52],labels[51],labels[50],labels[49],labels[48],labels[47],labels[46],labels[45],labels[44],labels[43],labels[42],labels[41],labels[40],labels[39],labels[38],labels[37],labels[36],labels[35],labels[34],labels[33],labels[32],labels[31],labels[30],labels[29],labels[28],labels[27],labels[26],labels[25],labels[24],labels[23],labels[22],labels[21],labels[20],labels[19],labels[18],labels[17],labels[16],labels[15],labels[14],labels[13],labels[12],labels[11],labels[10],labels[9],labels[8],labels[7],labels[6],labels[5],labels[4],labels[3],labels[2],labels[1],cmp)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (2):
 * Single equations (assignments): 1
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 1
 * 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 0.0003769/0.3208, allocations: 383.5 kB / 1.084 GB, free: 10.17 MB / 0.8419 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 7.444e-05/0.3209, allocations: 110.4 kB / 1.084 GB, free: 10.06 MB / 0.8419 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0003448/0.3212, allocations: 412.6 kB / 1.084 GB, free: 9.648 MB / 0.8419 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.653e-06/0.3213, allocations: 0 / 1.084 GB, free: 9.648 MB / 0.8419 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.388e-06/0.3213, allocations: 3.938 kB / 1.084 GB, free: 9.645 MB / 0.8419 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.575e-06/0.3213, allocations: 0 / 1.084 GB, free: 9.645 MB / 0.8419 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004453/0.3217, allocations: 0.5448 MB / 1.085 GB, free: 9.047 MB / 0.8419 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.252e-06/0.3217, allocations: 3.938 kB / 1.085 GB, free: 9.043 MB / 0.8419 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 4.288e-06/0.3217, allocations: 0 / 1.085 GB, free: 9.043 MB / 0.8419 GB
Notification: Performance of postOpt tearingSystem (simulation): time 4.268e-06/0.3217, allocations: 3.938 kB / 1.085 GB, free: 9.039 MB / 0.8419 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.606e-06/0.3218, allocations: 4 kB / 1.085 GB, free: 9.035 MB / 0.8419 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.022e-06/0.3218, allocations: 4.031 kB / 1.085 GB, free: 9.031 MB / 0.8419 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.314e-06/0.3218, allocations: 3.984 kB / 1.085 GB, free: 9.027 MB / 0.8419 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0003139/0.3221, allocations: 430.2 kB / 1.085 GB, free: 8.586 MB / 0.8419 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001298/0.3222, allocations: 175.5 kB / 1.085 GB, free: 8.395 MB / 0.8419 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.963e-05/0.3223, allocations: 0 / 1.085 GB, free: 8.395 MB / 0.8419 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 9.018e-05/0.3224, allocations: 0 / 1.085 GB, free: 8.395 MB / 0.8419 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 1.756e-05/0.3224, allocations: 4 kB / 1.085 GB, free: 8.391 MB / 0.8419 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.815e-06/0.3224, allocations: 4.031 kB / 1.085 GB, free: 8.387 MB / 0.8419 GB
Notification: Performance of sorting global known variables: time 0.0009557/0.3234, allocations: 0.9075 MB / 1.086 GB, free: 7.48 MB / 0.8419 GB
Notification: Performance of sort global known variables: time 2.1e-07/0.3234, allocations: 0 / 1.086 GB, free: 7.48 MB / 0.8419 GB
Notification: Performance of remove unused functions: time 0.0005586/0.3239, allocations: 180 kB / 1.086 GB, free: 7.305 MB / 0.8419 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 0 ()
 * Number of discrete variables: 1 (cmp)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (1):
 * Single equations (assignments): 1
 * 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 0.0007018/0.3247, allocations: 280.1 kB / 1.087 GB, free: 7.043 MB / 0.8419 GB
Notification: Performance of simCode: created initialization part: time 0.0009097/0.3256, allocations: 1.057 MB / 1.088 GB, free: 5.98 MB / 0.8419 GB
Notification: Performance of simCode: created event and clocks part: time 2.806e-06/0.3256, allocations: 7.938 kB / 1.088 GB, free: 5.973 MB / 0.8419 GB
Notification: Performance of simCode: created simulation system equations: time 0.0001045/0.3257, allocations: 131.9 kB / 1.088 GB, free: 5.844 MB / 0.8419 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003399/0.3261, allocations: 33.22 kB / 1.088 GB, free: 5.812 MB / 0.8419 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001742/0.3278, allocations: 1.693 MB / 1.089 GB, free: 4.09 MB / 0.8419 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006614/0.3285, allocations: 1.012 MB / 1.09 GB, free: 3.055 MB / 0.8419 GB
Notification: Performance of simCode: alias equations: time 2.258e-05/0.3285, allocations: 0 / 1.09 GB, free: 3.055 MB / 0.8419 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 1.717e-05/0.3285, allocations: 11.44 kB / 1.09 GB, free: 3.043 MB / 0.8419 GB
Notification: Performance of SimCode: time 2.3e-07/0.3285, allocations: 0 / 1.09 GB, free: 3.043 MB / 0.8419 GB
Notification: Performance of Templates: time 0.01037/0.3389, allocations: 4.496 MB / 1.095 GB, free: 14.6 MB / 0.8575 GB
make -j1 -f Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes.makefile
(rm -f Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes.pipe ; mkfifo Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes.pipe >> ../files/Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes.sim & ./Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes  -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.ClusterBoreholes_100boreholes.pipe 2>&1)