Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 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: "" <> buildModelFMU(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised,fileNamePrefix="Buildings_8_Buildings_Fluid_Examples_Performance_PressureDrop_ParallelDpOptimised",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised,fileNamePrefix="Buildings_8_Buildings_Fluid_Examples_Performance_PressureDrop_ParallelDpOptimised",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007891/0.000789, allocations: 98.27 kB / 15.36 MB, free: 0.7344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.005191/0.005191, allocations: 172.2 kB / 16.27 MB, free: 6.66 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.347/1.347, allocations: 205.4 MB / 222.4 MB, free: 5.559 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.564/1.564, allocations: 292.7 MB / 0.5502 GB, free: 14.49 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0004875/0.0004874, allocations: 20.69 kB / 0.6744 GB, free: 25.7 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1798/0.1803, allocations: 116.3 MB / 0.788 GB, free: 11.52 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised): time 0.5059/0.6862, allocations: 157.3 MB / 0.9416 GB, free: 1.141 MB / 0.7169 GB Notification: Performance of NFInst.instExpressions: time 0.003306/0.6895, allocations: 3.58 MB / 0.9451 GB, free: 0.8359 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001879/0.6897, allocations: 16.84 kB / 0.9451 GB, free: 0.8242 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.0004045/0.6902, allocations: 133.5 kB / 0.9452 GB, free: 0.7852 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.0009072/0.6911, allocations: 0.4945 MB / 0.9457 GB, free: 0.6797 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.0008397/0.6919, allocations: 391.3 kB / 0.9461 GB, free: 0.6445 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.003328/0.6953, allocations: 3.519 MB / 0.9495 GB, free: 208 kB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002554/0.6978, allocations: 2.221 MB / 0.9517 GB, free: 15.83 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001504/0.6993, allocations: 0.9064 MB / 0.9526 GB, free: 15.71 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008669/0.7002, allocations: 0.7125 MB / 0.9533 GB, free: 15.67 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 7.846e-05/0.7003, allocations: 33.44 kB / 0.9533 GB, free: 15.67 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001196/0.7015, allocations: 0.8009 MB / 0.9541 GB, free: 15.61 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.000239/0.7018, allocations: 281.6 kB / 0.9544 GB, free: 15.6 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.0005354/0.7023, allocations: 0.5334 MB / 0.9549 GB, free: 15.55 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.001197/0.7035, allocations: 1.381 MB / 0.9562 GB, free: 15.44 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 3.186e-06/0.7035, allocations: 0 / 0.9562 GB, free: 15.44 MB / 0.7325 GB Notification: Performance of FrontEnd: time 2.345e-06/0.7035, allocations: 0 / 0.9562 GB, free: 15.44 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 1.099e-05/0.7035, allocations: 5.859 kB / 0.9562 GB, free: 15.44 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 125 * Number of variables: 125 Notification: Performance of Generate backend data structure: time 0.001815/0.7054, allocations: 1.294 MB / 0.9575 GB, free: 14.63 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 3.671e-05/0.7054, allocations: 14.22 kB / 0.9575 GB, free: 14.62 MB / 0.7325 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.882e-05/0.7055, allocations: 91.77 kB / 0.9576 GB, free: 14.59 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006786/0.7062, allocations: 193.1 kB / 0.9578 GB, free: 14.52 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001017/0.7072, allocations: 0.809 MB / 0.9586 GB, free: 14.14 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.404e-05/0.7073, allocations: 41.81 kB / 0.9586 GB, free: 14.14 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.479e-05/0.7074, allocations: 62.97 kB / 0.9587 GB, free: 14.14 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001075/0.7084, allocations: 0.8255 MB / 0.9595 GB, free: 13.9 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.616e-05/0.7085, allocations: 5.906 kB / 0.9595 GB, free: 13.89 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.048e-05/0.7085, allocations: 21 kB / 0.9595 GB, free: 13.89 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.474e-05/0.7085, allocations: 13.16 kB / 0.9595 GB, free: 13.89 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008687/0.7094, allocations: 0.578 MB / 0.9601 GB, free: 13.86 MB / 0.7325 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 0.003368/0.7128, allocations: 4.258 MB / 0.9642 GB, free: 10.95 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006857/0.7135, allocations: 449 kB / 0.9647 GB, free: 10.9 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004447/0.7139, allocations: 356 kB / 0.965 GB, free: 10.83 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002549/0.7142, allocations: 193.8 kB / 0.9652 GB, free: 10.64 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004764/0.7147, allocations: 331.9 kB / 0.9655 GB, free: 10.49 MB / 0.7325 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0001741/0.7149, allocations: 32.5 kB / 0.9655 GB, free: 10.48 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=33): time 1.603e-06/0.7149, allocations: 1.375 kB / 0.9655 GB, free: 10.48 MB / 0.7325 GB Notification: Performance of matching and sorting (n=33): time 0.001264/0.7162, allocations: 0.7143 MB / 0.9662 GB, free: 10.27 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.271e-05/0.7162, allocations: 86.09 kB / 0.9663 GB, free: 10.17 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001228/0.7175, allocations: 1.149 MB / 0.9675 GB, free: 9.812 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 4.48e-05/0.7175, allocations: 44.34 kB / 0.9675 GB, free: 9.777 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003275/0.7178, allocations: 497.8 kB / 0.968 GB, free: 9.566 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 8.058e-05/0.7179, allocations: 116.5 kB / 0.9681 GB, free: 9.484 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.204e-05/0.718, allocations: 46.03 kB / 0.9681 GB, free: 9.461 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 9.733e-05/0.7181, allocations: 324.2 kB / 0.9684 GB, free: 9.152 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003681/0.7185, allocations: 235.4 kB / 0.9687 GB, free: 9.102 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005716/0.7191, allocations: 0.5432 MB / 0.9692 GB, free: 8.672 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008176/0.7199, allocations: 0.6922 MB / 0.9699 GB, free: 8.32 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.797e-06/0.7199, allocations: 3.938 kB / 0.9699 GB, free: 8.316 MB / 0.7325 GB Notification: Performance of matching and sorting (n=56) (initialization): time 0.001033/0.7209, allocations: 0.7765 MB / 0.9706 GB, free: 8.059 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001447/0.7211, allocations: 267.7 kB / 0.9709 GB, free: 7.746 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.915e-06/0.7211, allocations: 2.75 kB / 0.9709 GB, free: 7.746 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.884e-05/0.7211, allocations: 21.67 kB / 0.9709 GB, free: 7.734 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004652/0.7216, allocations: 118.8 kB / 0.971 GB, free: 7.703 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.195e-05/0.7216, allocations: 15.7 kB / 0.971 GB, free: 7.699 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007218/0.7223, allocations: 79 kB / 0.9711 GB, free: 7.672 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.51e-05/0.7224, allocations: 24.62 kB / 0.9711 GB, free: 7.672 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 5.781e-06/0.7224, allocations: 5.531 kB / 0.9711 GB, free: 7.672 MB / 0.7325 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0007986/0.7232, allocations: 0.5856 MB / 0.9717 GB, free: 7.512 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.641e-06/0.7232, allocations: 4.5 kB / 0.9717 GB, free: 7.512 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 7.123e-06/0.7232, allocations: 11.72 kB / 0.9717 GB, free: 7.508 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004177/0.7237, allocations: 111.5 kB / 0.9718 GB, free: 7.48 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.648e-06/0.7237, allocations: 17.89 kB / 0.9718 GB, free: 7.473 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006663/0.7244, allocations: 75.27 kB / 0.9719 GB, free: 7.445 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.145e-05/0.7244, allocations: 27.84 kB / 0.9719 GB, free: 7.441 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (55): * Single equations (assignments): 54 * Array equations: 0 * Algorithm blocks: 1 * 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 prepare postOptimizeDAE: time 0.0004098/0.7248, allocations: 477.2 kB / 0.9724 GB, free: 7.168 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001083/0.7249, allocations: 99.25 kB / 0.9725 GB, free: 7.117 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008616/0.7258, allocations: 0.5495 MB / 0.973 GB, free: 6.953 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.27e-06/0.7258, allocations: 4.625 kB / 0.973 GB, free: 6.953 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.009e-06/0.7258, allocations: 0 / 0.973 GB, free: 6.953 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.358e-06/0.7258, allocations: 3.266 kB / 0.973 GB, free: 6.953 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001829/0.7277, allocations: 1.512 MB / 0.9745 GB, free: 6.219 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.827e-06/0.7277, allocations: 1.812 kB / 0.9745 GB, free: 6.219 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003337/0.728, allocations: 79.97 kB / 0.9746 GB, free: 6.191 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.559e-06/0.728, allocations: 3.281 kB / 0.9746 GB, free: 6.191 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.246e-05/0.7281, allocations: 8.625 kB / 0.9746 GB, free: 6.191 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.506e-06/0.7281, allocations: 2.625 kB / 0.9746 GB, free: 6.191 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.685e-06/0.7281, allocations: 2.312 kB / 0.9746 GB, free: 6.191 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007716/0.7289, allocations: 0.6745 MB / 0.9753 GB, free: 5.859 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002655/0.7291, allocations: 231 kB / 0.9755 GB, free: 5.688 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001033/0.7292, allocations: 9.5 kB / 0.9755 GB, free: 5.688 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005941/0.7298, allocations: 63.14 kB / 0.9756 GB, free: 5.66 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.366e-05/0.7299, allocations: 29.3 kB / 0.9756 GB, free: 5.652 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.243e-05/0.73, allocations: 12.77 kB / 0.9756 GB, free: 5.648 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.0007898/0.7307, allocations: 0.8243 MB / 0.9764 GB, free: 5.379 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.4e-07/0.7308, allocations: 4 kB / 0.9764 GB, free: 5.375 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.0009219/0.7317, allocations: 424.6 kB / 0.9768 GB, free: 5.34 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (33): * Single equations (assignments): 31 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 0.001266/0.733, allocations: 1.288 MB / 0.9781 GB, free: 4.453 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.001169/0.7341, allocations: 0.9029 MB / 0.979 GB, free: 4.152 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 2.585e-06/0.7342, allocations: 5.312 kB / 0.979 GB, free: 4.148 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.0003395/0.7345, allocations: 247.1 kB / 0.9792 GB, free: 4.094 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003619/0.7381, allocations: 0.6232 MB / 0.9798 GB, free: 3.863 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01189/0.75, allocations: 9.212 MB / 0.9888 GB, free: 15.08 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005846/0.7506, allocations: 1.187 MB / 0.99 GB, free: 14.14 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.001015/0.7517, allocations: 408.3 kB / 0.9903 GB, free: 13.97 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003898/0.7521, allocations: 334.8 kB / 0.9907 GB, free: 13.71 MB / 0.7481 GB Notification: Performance of SimCode: time 1.423e-06/0.7521, allocations: 6.875 kB / 0.9907 GB, free: 13.7 MB / 0.7481 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.924/2.676, allocations: 28 MB / 1.018 GB, free: 10.71 MB / 0.7637 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002579/2.676, allocations: 274.8 kB / 1.018 GB, free: 10.36 MB / 0.7637 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.618/5.295, allocations: 0 / 1.018 GB, free: 10.36 MB / 0.7637 GB (rm -f Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.pipe ; mkfifo Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.pipe >> ../files/Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Fluid_Examples_Performance_PressureDrop_ParallelDpOptimised_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Fluid_Examples_Performance_PressureDrop_ParallelDpOptimised.fmu > Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelDpOptimised.pipe 2>&1)