Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D.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: "" <> buildModelFMU(IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Chillers_ModularReversible_Validation_TableData2D",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D,fileNamePrefix="IBPSA_latest_IBPSA_Fluid_Chillers_ModularReversible_Validation_TableData2D",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 0.001099/0.001099, allocations: 105.2 kB / 16.27 MB, free: 5.953 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001158/0.001158, allocations: 185.9 kB / 17.19 MB, free: 5.59 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.264/1.264, allocations: 222.9 MB / 240.9 MB, free: 15.2 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7093/0.7093, allocations: 122.8 MB / 413.9 MB, free: 15.83 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001245/0.001245, allocations: 63.89 kB / 0.4912 GB, free: 7.32 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3091/0.3104, allocations: 77.92 MB / 0.5673 GB, free: 32.84 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D): time 0.06602/0.3764, allocations: 82.26 MB / 0.6476 GB, free: 8.355 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.02325/0.3997, allocations: 18.44 MB / 0.6656 GB, free: 5.863 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003447/0.4032, allocations: 99.5 kB / 0.6657 GB, free: 5.766 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.002983/0.4063, allocations: 1.305 MB / 0.667 GB, free: 4.453 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 0.007083/0.4134, allocations: 2.851 MB / 0.6698 GB, free: 1.59 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.005123/0.4185, allocations: 2.061 MB / 0.6718 GB, free: 15.55 MB / 0.5137 GB Notification: Performance of NFFlatten.flatten: time 0.006545/0.4251, allocations: 5.517 MB / 0.6772 GB, free: 10.03 MB / 0.5137 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003867/0.429, allocations: 2.54 MB / 0.6797 GB, free: 7.434 MB / 0.5137 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004338/0.4333, allocations: 2.13 MB / 0.6817 GB, free: 5.301 MB / 0.5137 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002453/0.4358, allocations: 1.68 MB / 0.6834 GB, free: 3.613 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.0006597/0.4365, allocations: 300 kB / 0.6837 GB, free: 3.32 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004346/0.4408, allocations: 1.962 MB / 0.6856 GB, free: 1.355 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.001166/0.442, allocations: 0.7242 MB / 0.6863 GB, free: 0.6289 MB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.002374/0.4444, allocations: 1.458 MB / 0.6877 GB, free: 15.16 MB / 0.5294 GB Notification: Performance of NFConvertDAE.convert: time 0.007443/0.4518, allocations: 4.943 MB / 0.6925 GB, free: 10.21 MB / 0.5294 GB Notification: Performance of FrontEnd - DAE generated: time 8.526e-06/0.4519, allocations: 4 kB / 0.6925 GB, free: 10.2 MB / 0.5294 GB Notification: Performance of FrontEnd: time 1.823e-06/0.4519, allocations: 0 / 0.6925 GB, free: 10.2 MB / 0.5294 GB Notification: Performance of Transformations before backend: time 0.0001515/0.452, allocations: 0 / 0.6925 GB, free: 10.2 MB / 0.5294 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 411 * Number of variables: 411 Notification: Performance of Generate backend data structure: time 0.006494/0.4585, allocations: 3.162 MB / 0.6956 GB, free: 6.953 MB / 0.5294 GB Notification: Performance of prepare preOptimizeDAE: time 4.066e-05/0.4586, allocations: 8.625 kB / 0.6956 GB, free: 6.945 MB / 0.5294 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0004064/0.459, allocations: 236.4 kB / 0.6959 GB, free: 6.703 MB / 0.5294 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001118/0.4601, allocations: 360.4 kB / 0.6962 GB, free: 6.348 MB / 0.5294 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00383/0.464, allocations: 2.439 MB / 0.6986 GB, free: 3.859 MB / 0.5294 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 9.87e-05/0.4641, allocations: 127.2 kB / 0.6987 GB, free: 3.734 MB / 0.5294 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002395/0.4643, allocations: 176 kB / 0.6989 GB, free: 3.562 MB / 0.5294 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002806/0.4671, allocations: 1.735 MB / 0.7006 GB, free: 1.762 MB / 0.5294 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.041e-05/0.4672, allocations: 0 / 0.7006 GB, free: 1.762 MB / 0.5294 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001299/0.4673, allocations: 68 kB / 0.7006 GB, free: 1.695 MB / 0.5294 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.983e-05/0.4674, allocations: 47.94 kB / 0.7007 GB, free: 1.648 MB / 0.5294 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002462/0.4698, allocations: 1.254 MB / 0.7019 GB, free: 400 kB / 0.5294 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 0.008569/0.4784, allocations: 7.501 MB / 0.7092 GB, free: 8.504 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001497/0.4799, allocations: 0.6483 MB / 0.7099 GB, free: 7.852 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006877/0.4806, allocations: 350.3 kB / 0.7102 GB, free: 7.508 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0007496/0.4814, allocations: 1.156 MB / 0.7113 GB, free: 6.094 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.774e-05/0.4814, allocations: 39.12 kB / 0.7114 GB, free: 6.047 MB / 0.545 GB Notification: Performance of pre-optimization done (n=57): time 2.284e-06/0.4814, allocations: 0 / 0.7114 GB, free: 6.047 MB / 0.545 GB Notification: Performance of matching and sorting (n=57): time 0.00244/0.4839, allocations: 1.031 MB / 0.7124 GB, free: 5.008 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.724e-05/0.484, allocations: 111.4 kB / 0.7125 GB, free: 4.871 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003117/0.4871, allocations: 2.037 MB / 0.7145 GB, free: 2.805 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 0.0001041/0.4872, allocations: 41.7 kB / 0.7145 GB, free: 2.758 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.000972/0.4882, allocations: 1.097 MB / 0.7156 GB, free: 1.648 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001926/0.4884, allocations: 201.1 kB / 0.7158 GB, free: 1.449 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002892/0.4887, allocations: 202.5 kB / 0.716 GB, free: 1.242 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0001157/0.4888, allocations: 345.9 kB / 0.7163 GB, free: 0.8984 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007012/0.4895, allocations: 324.7 kB / 0.7166 GB, free: 0.5781 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009916/0.4905, allocations: 0.6513 MB / 0.7172 GB, free: 15.79 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001633/0.4922, allocations: 0.9005 MB / 0.7181 GB, free: 14.78 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.242e-06/0.4922, allocations: 4 kB / 0.7181 GB, free: 14.77 MB / 0.5606 GB Notification: Performance of matching and sorting (n=105) (initialization): time 0.002237/0.4944, allocations: 1.108 MB / 0.7192 GB, free: 13.66 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 1.92e-05/0.4945, allocations: 8 kB / 0.7192 GB, free: 13.65 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.531e-05/0.4945, allocations: 8 kB / 0.7192 GB, free: 13.64 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.133e-05/0.4945, allocations: 12 kB / 0.7192 GB, free: 13.63 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007503/0.4953, allocations: 216.1 kB / 0.7194 GB, free: 13.42 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.025e-05/0.4953, allocations: 15.98 kB / 0.7195 GB, free: 13.4 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001234/0.4965, allocations: 162.7 kB / 0.7196 GB, free: 13.24 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.76e-05/0.4966, allocations: 47.92 kB / 0.7197 GB, free: 13.2 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001278/0.4979, allocations: 0.7751 MB / 0.7204 GB, free: 12.42 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0009483/0.4989, allocations: 0.6588 MB / 0.7211 GB, free: 11.62 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001558/0.5004, allocations: 0.8848 MB / 0.7219 GB, free: 10.62 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.206e-06/0.5004, allocations: 0 / 0.7219 GB, free: 10.62 MB / 0.5606 GB Notification: Performance of matching and sorting (n=105) (initialization_lambda0): time 0.002147/0.5026, allocations: 1.108 MB / 0.723 GB, free: 9.508 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 1.211e-05/0.5026, allocations: 8 kB / 0.723 GB, free: 9.5 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.416e-06/0.5026, allocations: 8 kB / 0.723 GB, free: 9.492 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.095e-05/0.5026, allocations: 12 kB / 0.723 GB, free: 9.48 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007264/0.5034, allocations: 211.7 kB / 0.7232 GB, free: 9.273 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.722e-05/0.5034, allocations: 15.94 kB / 0.7232 GB, free: 9.258 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001216/0.5046, allocations: 145.2 kB / 0.7234 GB, free: 9.117 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.06e-05/0.5047, allocations: 39.98 kB / 0.7234 GB, free: 9.078 MB / 0.5606 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 35 * Number of states: 0 () * Number of discrete variables: 9 (chi.eff.swiCoo.u2,chi.eff.swiHea.u2,chi.eff.hea,chi.notCoo.y,chi.conCoo.y,chi.eff.hys.y,$PRE.chi.eff.hys.y,chi.hys.y,$PRE.chi.hys.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (105): * Single equations (assignments): 105 * 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 prepare postOptimizeDAE: time 0.0002233/0.5049, allocations: 255 kB / 0.7237 GB, free: 8.824 MB / 0.5606 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000337/0.5053, allocations: 205.5 kB / 0.7239 GB, free: 8.621 MB / 0.5606 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002031/0.5073, allocations: 1.003 MB / 0.7248 GB, free: 7.609 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.528e-05/0.5073, allocations: 8 kB / 0.7248 GB, free: 7.602 MB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.811e-06/0.5074, allocations: 0 / 0.7248 GB, free: 7.602 MB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001422/0.5088, allocations: 0.7593 MB / 0.7256 GB, free: 6.812 MB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004467/0.5133, allocations: 2.797 MB / 0.7283 GB, free: 3.91 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.282e-05/0.5133, allocations: 4 kB / 0.7283 GB, free: 3.906 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000548/0.5138, allocations: 132.2 kB / 0.7285 GB, free: 3.777 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.381e-05/0.5139, allocations: 8 kB / 0.7285 GB, free: 3.77 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.223e-05/0.5139, allocations: 19.98 kB / 0.7285 GB, free: 3.75 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.506e-06/0.5139, allocations: 8 kB / 0.7285 GB, free: 3.742 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.37e-06/0.5139, allocations: 7.938 kB / 0.7285 GB, free: 3.734 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002636/0.5166, allocations: 1.464 MB / 0.7299 GB, free: 2.211 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005911/0.5172, allocations: 378.3 kB / 0.7303 GB, free: 1.82 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002853/0.5175, allocations: 27.98 kB / 0.7303 GB, free: 1.793 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009225/0.5184, allocations: 59.94 kB / 0.7304 GB, free: 1.734 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001288/0.5186, allocations: 68.3 kB / 0.7304 GB, free: 1.668 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.162e-05/0.5186, allocations: 35.91 kB / 0.7305 GB, free: 1.633 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.001913/0.5205, allocations: 1.419 MB / 0.7319 GB, free: 204 kB / 0.5606 GB Notification: Performance of sort global known variables: time 1.2e-07/0.5205, allocations: 0 / 0.7319 GB, free: 204 kB / 0.5606 GB Notification: Performance of remove unused functions: time 0.002526/0.5231, allocations: 0.9853 MB / 0.7328 GB, free: 15.21 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 2 (chi.con.vol.dynBal.U,chi.eva.vol.dynBal.U) * Number of discrete variables: 2 (chi.hys.y,chi.eff.hys.y) * Number of discrete states: 2 (chi.eff.hys.y,chi.hys.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (61): * Single equations (assignments): 55 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 6 * 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 0.004608/0.5277, allocations: 2.687 MB / 0.7354 GB, free: 12.62 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.003086/0.5308, allocations: 1.305 MB / 0.7367 GB, free: 11.32 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 8.036e-06/0.5308, allocations: 0 / 0.7367 GB, free: 11.32 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.0008724/0.5317, allocations: 408 kB / 0.7371 GB, free: 10.92 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004456/0.5362, allocations: 0.9344 MB / 0.738 GB, free: 10.02 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.2397/0.7759, allocations: 16.34 MB / 0.754 GB, free: 156.7 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001031/0.777, allocations: 1.517 MB / 0.7555 GB, free: 155.9 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.001671/0.7786, allocations: 427.3 kB / 0.7559 GB, free: 155.9 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001015/0.7797, allocations: 0.913 MB / 0.7568 GB, free: 155.2 MB / 0.5762 GB Notification: Performance of SimCode: time 6.31e-07/0.7797, allocations: 0 / 0.7568 GB, free: 155.2 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07956/0.8592, allocations: 55.94 MB / 0.8114 GB, free: 115 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate platform static: time 8.232/9.092, allocations: 3.75 kB / 0.8114 GB, free: 115 MB / 0.5762 GB (rm -f IBPSA_latest_IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Fluid_Chillers_ModularReversible_Validation_TableData2D_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Fluid_Chillers_ModularReversible_Validation_TableData2D.fmu > IBPSA_latest_IBPSA.Fluid.Chillers.ModularReversible.Validation.TableData2D.pipe 2>&1)