Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/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 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) Running command: "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU,fileNamePrefix="Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_Validation_DryCoilEffectivenessNTU",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU,fileNamePrefix="Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_Validation_DryCoilEffectivenessNTU",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.39/1.39, allocations: 252 MB / 267 MB, free: 10.97 MB / 218.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001057/0.001057, allocations: 172 kB / 326.6 MB, free: 2.227 MB / 250.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.885/1.885, allocations: 205.4 MB / 0.5776 GB, free: 20.52 MB / 426.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0008213/0.0008216, allocations: 101 kB / 0.6823 GB, free: 13.34 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 0.0005839/0.0005842, allocations: 11.81 kB / 0.7964 GB, free: 135 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2408/0.2414, allocations: 106.3 MB / 0.9003 GB, free: 64.22 MB / 0.6042 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU): time 0.8712/1.113, allocations: 326.1 MB / 1.219 GB, free: 12.55 MB / 0.7448 GB Notification: Performance of NFInst.instExpressions: time 0.04657/1.159, allocations: 29.57 MB / 1.248 GB, free: 14.91 MB / 0.7761 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00819/1.168, allocations: 143 kB / 1.248 GB, free: 14.77 MB / 0.7761 GB Notification: Performance of NFTyping.typeComponents: time 0.008666/1.176, allocations: 1.82 MB / 1.25 GB, free: 12.94 MB / 0.7761 GB Notification: Performance of NFTyping.typeBindings: time 0.02399/1.2, allocations: 6.286 MB / 1.256 GB, free: 6.629 MB / 0.7761 GB Notification: Performance of NFTyping.typeClassSections: time 0.01062/1.211, allocations: 3.045 MB / 1.259 GB, free: 3.637 MB / 0.7761 GB Notification: Performance of NFFlatten.flatten: time 0.0224/1.233, allocations: 13.89 MB / 1.272 GB, free: 5.703 MB / 0.7917 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007496/1.241, allocations: 3.309 MB / 1.275 GB, free: 2.344 MB / 0.7917 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01648/1.257, allocations: 5.422 MB / 1.281 GB, free: 12.9 MB / 0.8073 GB Notification: Performance of NFSimplifyModel.simplify: time 0.009606/1.267, allocations: 3.801 MB / 1.284 GB, free: 9.082 MB / 0.8073 GB Notification: Performance of NFPackage.collectConstants: time 0.002197/1.269, allocations: 212 kB / 1.285 GB, free: 8.875 MB / 0.8073 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01308/1.282, allocations: 3.398 MB / 1.288 GB, free: 5.473 MB / 0.8073 GB Notification: Performance of NFScalarize.scalarize: time 0.003276/1.286, allocations: 1.148 MB / 1.289 GB, free: 4.32 MB / 0.8073 GB Notification: Performance of NFVerifyModel.verify: time 0.003467/1.289, allocations: 1.061 MB / 1.29 GB, free: 3.25 MB / 0.8073 GB Notification: Performance of NFConvertDAE.convert: time 0.01263/1.302, allocations: 6.356 MB / 1.296 GB, free: 12.88 MB / 0.823 GB Notification: Performance of FrontEnd - DAE generated: time 7.725e-06/1.302, allocations: 0 / 1.296 GB, free: 12.88 MB / 0.823 GB Notification: Performance of FrontEnd: time 4.369e-06/1.302, allocations: 0 / 1.296 GB, free: 12.88 MB / 0.823 GB Notification: Performance of Transformations before backend: time 0.0003123/1.302, allocations: 3.938 kB / 1.296 GB, free: 12.88 MB / 0.823 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 822 * Number of variables: 822 Notification: Performance of Generate backend data structure: time 0.01655/1.319, allocations: 5.309 MB / 1.302 GB, free: 7.484 MB / 0.823 GB Notification: Performance of prepare preOptimizeDAE: time 4.592e-05/1.319, allocations: 8.031 kB / 1.302 GB, free: 7.477 MB / 0.823 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001366/1.32, allocations: 439 kB / 1.302 GB, free: 7.035 MB / 0.823 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01157/1.332, allocations: 2.214 MB / 1.304 GB, free: 4.812 MB / 0.823 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009612/1.341, allocations: 3.591 MB / 1.308 GB, free: 1.168 MB / 0.823 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.00329/1.345, allocations: 0.9246 MB / 1.309 GB, free: 244 kB / 0.823 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00175/1.347, allocations: 352.1 kB / 1.309 GB, free: 15.89 MB / 0.8386 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01178/1.358, allocations: 4.887 MB / 1.314 GB, free: 10.92 MB / 0.8386 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.829e-05/1.358, allocations: 4 kB / 1.314 GB, free: 10.92 MB / 0.8386 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003965/1.359, allocations: 132 kB / 1.314 GB, free: 10.79 MB / 0.8386 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001505/1.359, allocations: 154.1 kB / 1.314 GB, free: 10.64 MB / 0.8386 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01459/1.374, allocations: 5.575 MB / 1.319 GB, free: 5.051 MB / 0.8386 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 0.03762/1.411, allocations: 19.74 MB / 1.339 GB, free: 15.98 MB / 0.8698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01127/1.423, allocations: 4.103 MB / 1.343 GB, free: 11.87 MB / 0.8698 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005473/1.428, allocations: 2.149 MB / 1.345 GB, free: 9.719 MB / 0.8698 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0009999/1.429, allocations: 0.6929 MB / 1.345 GB, free: 8.898 MB / 0.8698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.006081/1.435, allocations: 2.403 MB / 1.348 GB, free: 6.477 MB / 0.8698 GB Notification: Performance of pre-optimization done (n=251): time 4.628e-06/1.435, allocations: 0 / 1.348 GB, free: 6.477 MB / 0.8698 GB Notification: Performance of matching and sorting (n=251): time 0.01731/1.453, allocations: 6.116 MB / 1.354 GB, free: 360 kB / 0.8698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.222e-05/1.453, allocations: 111.1 kB / 1.354 GB, free: 228 kB / 0.8698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005547/1.458, allocations: 3.601 MB / 1.357 GB, free: 12.61 MB / 0.8855 GB Notification: Performance of collectPreVariables (initialization): time 0.0006621/1.459, allocations: 89.7 kB / 1.357 GB, free: 12.52 MB / 0.8855 GB Notification: Performance of collectInitialEqns (initialization): time 0.001827/1.461, allocations: 1.836 MB / 1.359 GB, free: 10.67 MB / 0.8855 GB Notification: Performance of collectInitialBindings (initialization): time 0.001/1.462, allocations: 0.8393 MB / 1.36 GB, free: 9.82 MB / 0.8855 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002023/1.462, allocations: 64 kB / 1.36 GB, free: 9.758 MB / 0.8855 GB Notification: Performance of setup shared object (initialization): time 0.0001989/1.462, allocations: 424.6 kB / 1.361 GB, free: 9.336 MB / 0.8855 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005508/1.468, allocations: 2.02 MB / 1.363 GB, free: 7.312 MB / 0.8855 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00616/1.474, allocations: 2.791 MB / 1.365 GB, free: 4.254 MB / 0.8855 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005799/1.48, allocations: 2.158 MB / 1.367 GB, free: 2.074 MB / 0.8855 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.303e-05/1.48, allocations: 0 / 1.367 GB, free: 2.074 MB / 0.8855 GB Notification: Performance of matching and sorting (n=404) (initialization): time 0.01422/1.494, allocations: 5.243 MB / 1.372 GB, free: 12.79 MB / 0.9011 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003889/1.494, allocations: 495.8 kB / 1.373 GB, free: 12.13 MB / 0.9011 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.763e-05/1.494, allocations: 12 kB / 1.373 GB, free: 12.12 MB / 0.9011 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.011e-05/1.494, allocations: 28.23 kB / 1.373 GB, free: 12.09 MB / 0.9011 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007135/1.502, allocations: 1.252 MB / 1.374 GB, free: 10.84 MB / 0.9011 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003391/1.505, allocations: 5.97 MB / 1.38 GB, free: 4.633 MB / 0.9011 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00704/1.512, allocations: 0.8358 MB / 1.381 GB, free: 3.793 MB / 0.9011 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007266/1.513, allocations: 159.9 kB / 1.381 GB, free: 3.637 MB / 0.9011 GB Notification: Performance of prepare postOptimizeDAE: time 1.732e-05/1.513, allocations: 6.188 kB / 1.381 GB, free: 3.633 MB / 0.9011 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01285/1.526, allocations: 4.851 MB / 1.386 GB, free: 14.75 MB / 0.9167 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.192e-05/1.526, allocations: 12 kB / 1.386 GB, free: 14.73 MB / 0.9167 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.038e-05/1.526, allocations: 31.94 kB / 1.386 GB, free: 14.7 MB / 0.9167 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005298/1.531, allocations: 1.112 MB / 1.387 GB, free: 13.59 MB / 0.9167 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.996e-05/1.531, allocations: 35.88 kB / 1.387 GB, free: 13.55 MB / 0.9167 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006052/1.537, allocations: 0.8012 MB / 1.388 GB, free: 12.75 MB / 0.9167 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004422/1.538, allocations: 155.9 kB / 1.388 GB, free: 12.6 MB / 0.9167 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 52 * Number of states: 0 () * Number of discrete variables: 15 (hexCroUnm.flowRegime,$whenCondition1,hexPar.flowRegime,hexCou.flowRegime,hexCroC1Mix.flowRegime,hexCroC1Unm.flowRegime,$PRE.trapezoid.T_start,trapezoid.T_start,$PRE.trapezoid.count,trapezoid.count,hexPar.flowRegime_nominal,hexCou.flowRegime_nominal,hexCroC1Mix.flowRegime_nominal,hexCroC1Unm.flowRegime_nominal,hexCroUnm.flowRegime_nominal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (403): * Single equations (assignments): 392 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 10 {1,1,1,1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.002522/1.54, allocations: 0.9147 MB / 1.389 GB, free: 11.67 MB / 0.9167 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001295/1.542, allocations: 438.5 kB / 1.389 GB, free: 11.24 MB / 0.9167 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01278/1.554, allocations: 4.876 MB / 1.394 GB, free: 6.305 MB / 0.9167 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.305e-05/1.554, allocations: 36 kB / 1.394 GB, free: 6.27 MB / 0.9167 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.076e-05/1.554, allocations: 0 / 1.394 GB, free: 6.27 MB / 0.9167 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.563e-05/1.554, allocations: 11.95 kB / 1.394 GB, free: 6.258 MB / 0.9167 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.5575/2.112, allocations: 9.262 MB / 1.403 GB, free: 355 MB / 0.9167 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.841e-05/2.112, allocations: 7.094 kB / 1.403 GB, free: 355 MB / 0.9167 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004737/2.117, allocations: 0.8988 MB / 1.404 GB, free: 355 MB / 0.9167 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.809e-05/2.117, allocations: 15.12 kB / 1.404 GB, free: 355 MB / 0.9167 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003563/2.117, allocations: 86.42 kB / 1.404 GB, free: 355 MB / 0.9167 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001979/2.119, allocations: 5.935 MB / 1.41 GB, free: 349.2 MB / 0.9167 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.371e-06/2.119, allocations: 9.938 kB / 1.41 GB, free: 349.2 MB / 0.9167 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01419/2.133, allocations: 4.788 MB / 1.414 GB, free: 348.7 MB / 0.9167 GB Notification: Performance of postOpt removeConstants (simulation): time 0.003708/2.137, allocations: 0.9883 MB / 1.415 GB, free: 348.5 MB / 0.9167 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001643/2.139, allocations: 49.59 kB / 1.415 GB, free: 348.5 MB / 0.9167 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.006406/2.145, allocations: 0.6072 MB / 1.416 GB, free: 348.5 MB / 0.9167 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007615/2.146, allocations: 201.5 kB / 1.416 GB, free: 348.5 MB / 0.9167 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0005047/2.147, allocations: 128 kB / 1.416 GB, free: 348.5 MB / 0.9167 GB Notification: Performance of sorting global known variables: time 0.005667/2.152, allocations: 2.363 MB / 1.419 GB, free: 348.3 MB / 0.9167 GB Notification: Performance of sort global known variables: time 2.71e-07/2.152, allocations: 0 / 1.419 GB, free: 348.3 MB / 0.9167 GB Notification: Performance of remove unused functions: time 0.01075/2.163, allocations: 2.29 MB / 1.421 GB, free: 348.2 MB / 0.9167 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 20 * Number of states: 0 () * Number of discrete variables: 7 ($whenCondition1,hexPar.flowRegime,hexCou.flowRegime,hexCroC1Mix.flowRegime,hexCroC1Unm.flowRegime,trapezoid.T_start,trapezoid.count) * Number of discrete states: 1 (trapezoid.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (283): * Single equations (assignments): 269 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 10 {1,1,1,1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.01694/2.18, allocations: 5.964 MB / 1.427 GB, free: 347 MB / 0.9167 GB Notification: Performance of simCode: created initialization part: time 0.02153/2.202, allocations: 7.628 MB / 1.434 GB, free: 345.9 MB / 0.9167 GB Notification: Performance of simCode: created event and clocks part: time 1.509e-05/2.202, allocations: 0 / 1.434 GB, free: 345.9 MB / 0.9167 GB Notification: Performance of simCode: created simulation system equations: time 0.006297/2.208, allocations: 2.427 MB / 1.437 GB, free: 345.2 MB / 0.9167 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01128/2.219, allocations: 2.038 MB / 1.439 GB, free: 344.7 MB / 0.9167 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.07168/2.291, allocations: 32.39 MB / 1.47 GB, free: 315.1 MB / 0.9167 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002689/2.294, allocations: 2.383 MB / 1.473 GB, free: 312.7 MB / 0.9167 GB Notification: Performance of simCode: alias equations: time 0.009323/2.303, allocations: 1.248 MB / 1.474 GB, free: 311.5 MB / 0.9167 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003661/2.307, allocations: 1.889 MB / 1.476 GB, free: 309.6 MB / 0.9167 GB Notification: Performance of SimCode: time 1.563e-06/2.307, allocations: 4 kB / 1.476 GB, free: 309.6 MB / 0.9167 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.2311/2.538, allocations: 118.6 MB / 1.591 GB, free: 191.6 MB / 0.9167 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002285/2.538, allocations: 277.1 kB / 1.592 GB, free: 191.3 MB / 0.9167 GB Notification: Performance of buildModelFMU: Generate platform static: time 6.998/9.537, allocations: 6.25 kB / 1.592 GB, free: 191.3 MB / 0.9167 GB (rm -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_Validation_DryCoilEffectivenessNTU_fmu --startTime=0 --stopTime=360 --timeout=50 --tolerance=1e-06 Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_Validation_DryCoilEffectivenessNTU.fmu > Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe 2>&1)