Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.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: translateModel(IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU") translateModel(IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001635/0.001635, allocations: 107.6 kB / 16.27 MB, free: 5.984 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002001/0.002001, allocations: 191.9 kB / 17.2 MB, free: 5.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.318/1.318, allocations: 222.9 MB / 240.9 MB, free: 15.22 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7411/0.7411, allocations: 122.9 MB / 413.9 MB, free: 15.87 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001893/0.001893, allocations: 63.91 kB / 0.4911 GB, free: 7.449 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3547/0.3566, allocations: 77.93 MB / 0.5672 GB, free: 32.72 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU): time 0.6849/1.042, allocations: 355.6 MB / 0.9144 GB, free: 2.867 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.04565/1.087, allocations: 31.96 MB / 0.9456 GB, free: 3.102 MB / 0.6544 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00587/1.093, allocations: 166.9 kB / 0.9458 GB, free: 2.938 MB / 0.6544 GB Notification: Performance of NFTyping.typeComponents: time 0.008543/1.102, allocations: 2.881 MB / 0.9486 GB, free: 40 kB / 0.6544 GB Notification: Performance of NFTyping.typeBindings: time 0.02446/1.126, allocations: 8.225 MB / 0.9567 GB, free: 7.781 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.01148/1.138, allocations: 4.089 MB / 0.9606 GB, free: 3.762 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.01695/1.155, allocations: 12.57 MB / 0.9729 GB, free: 7.152 MB / 0.6856 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007625/1.162, allocations: 4.595 MB / 0.9774 GB, free: 2.477 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01634/1.179, allocations: 7.331 MB / 0.9846 GB, free: 11.14 MB / 0.7012 GB Notification: Performance of NFSimplifyModel.simplify: time 0.007439/1.186, allocations: 4.002 MB / 0.9885 GB, free: 7.133 MB / 0.7012 GB Notification: Performance of NFPackage.collectConstants: time 0.001934/1.188, allocations: 0.5156 MB / 0.989 GB, free: 6.617 MB / 0.7012 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01227/1.2, allocations: 5.548 MB / 0.9944 GB, free: 1.059 MB / 0.7012 GB Notification: Performance of NFScalarize.scalarize: time 0.003716/1.204, allocations: 1.518 MB / 0.9959 GB, free: 15.54 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.006671/1.211, allocations: 2.974 MB / 0.9988 GB, free: 12.55 MB / 0.7169 GB Notification: Performance of NFConvertDAE.convert: time 0.01614/1.227, allocations: 8.881 MB / 1.007 GB, free: 3.641 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 5.941e-06/1.227, allocations: 0 / 1.007 GB, free: 3.641 MB / 0.7169 GB Notification: Performance of FrontEnd: time 1.363e-06/1.227, allocations: 0 / 1.007 GB, free: 3.641 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 0.000241/1.227, allocations: 0 / 1.007 GB, free: 3.641 MB / 0.7169 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 0.01791/1.245, allocations: 6.304 MB / 1.014 GB, free: 13.25 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 3.971e-05/1.245, allocations: 8.625 kB / 1.014 GB, free: 13.24 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01183/1.257, allocations: 2.011 MB / 1.016 GB, free: 11.22 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01004/1.267, allocations: 3.744 MB / 1.019 GB, free: 7.418 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.003371/1.271, allocations: 0.815 MB / 1.02 GB, free: 6.602 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00146/1.272, allocations: 352 kB / 1.02 GB, free: 6.258 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01198/1.284, allocations: 4.785 MB / 1.025 GB, free: 1.387 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.285e-05/1.284, allocations: 3.938 kB / 1.025 GB, free: 1.383 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000395/1.285, allocations: 135.9 kB / 1.025 GB, free: 1.25 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001421/1.285, allocations: 150.1 kB / 1.025 GB, free: 1.102 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.2781/1.563, allocations: 5.328 MB / 1.031 GB, free: 313.7 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 0.03456/1.597, allocations: 19.69 MB / 1.05 GB, free: 301.1 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01101/1.608, allocations: 3.806 MB / 1.053 GB, free: 299.4 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00563/1.614, allocations: 2.017 MB / 1.055 GB, free: 298.5 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0008539/1.615, allocations: 0.6848 MB / 1.056 GB, free: 297.8 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.006451/1.621, allocations: 2.284 MB / 1.058 GB, free: 296.6 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=247): time 4.759e-06/1.622, allocations: 0 / 1.058 GB, free: 296.6 MB / 0.7325 GB Notification: Performance of matching and sorting (n=247): time 0.01646/1.638, allocations: 5.731 MB / 1.064 GB, free: 294.1 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.453e-05/1.638, allocations: 106.6 kB / 1.064 GB, free: 294 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004552/1.643, allocations: 3.674 MB / 1.068 GB, free: 292 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.0006651/1.643, allocations: 85.55 kB / 1.068 GB, free: 292 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.001343/1.645, allocations: 1.849 MB / 1.07 GB, free: 290.4 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008282/1.646, allocations: 0.8399 MB / 1.07 GB, free: 289.7 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001008/1.647, allocations: 0.6815 MB / 1.071 GB, free: 289.3 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 5.161e-05/1.647, allocations: 301.1 kB / 1.071 GB, free: 289 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005141/1.652, allocations: 1.907 MB / 1.073 GB, free: 288.1 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005712/1.657, allocations: 2.621 MB / 1.076 GB, free: 286.3 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01007/1.668, allocations: 4.045 MB / 1.08 GB, free: 283.5 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.188e-05/1.668, allocations: 4 kB / 1.08 GB, free: 283.5 MB / 0.7325 GB Notification: Performance of matching and sorting (n=389) (initialization): time 0.01306/1.681, allocations: 4.949 MB / 1.084 GB, free: 278.5 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 4.877e-05/1.681, allocations: 33.7 kB / 1.085 GB, free: 278.4 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.944e-05/1.681, allocations: 12.78 kB / 1.085 GB, free: 278.4 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.647e-05/1.681, allocations: 24 kB / 1.085 GB, free: 278.4 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006424/1.687, allocations: 1.177 MB / 1.086 GB, free: 277.2 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001982/1.689, allocations: 5.962 MB / 1.092 GB, free: 271 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005389/1.695, allocations: 0.6474 MB / 1.092 GB, free: 270.4 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004156/1.695, allocations: 147.9 kB / 1.092 GB, free: 270.2 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006271/1.701, allocations: 2.575 MB / 1.095 GB, free: 267.7 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005397/1.707, allocations: 2.608 MB / 1.097 GB, free: 264.8 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.009802/1.717, allocations: 4.006 MB / 1.101 GB, free: 260.6 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.401e-05/1.717, allocations: 4 kB / 1.101 GB, free: 260.6 MB / 0.7325 GB Notification: Performance of matching and sorting (n=389) (initialization_lambda0): time 0.01253/1.729, allocations: 4.91 MB / 1.106 GB, free: 255.7 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 3.561e-05/1.729, allocations: 37.7 kB / 1.106 GB, free: 255.6 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.396e-05/1.729, allocations: 12 kB / 1.106 GB, free: 255.6 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.907e-05/1.729, allocations: 24 kB / 1.106 GB, free: 255.6 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004962/1.734, allocations: 1.031 MB / 1.107 GB, free: 254.6 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.61e-05/1.734, allocations: 35.91 kB / 1.107 GB, free: 254.5 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005167/1.74, allocations: 0.5829 MB / 1.108 GB, free: 253.9 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003303/1.74, allocations: 147.9 kB / 1.108 GB, free: 253.8 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 46 * Number of states: 0 () * Number of discrete variables: 15 (hexPar.flowRegime_nominal,hexPar.flowRegime,hexCou.flowRegime_nominal,hexCou.flowRegime,hexCroC1Mix.flowRegime_nominal,hexCroC1Mix.flowRegime,hexCroC1Unm.flowRegime_nominal,hexCroC1Unm.flowRegime,hexCroUnm.flowRegime_nominal,hexCroUnm.flowRegime,trapezoid.count,$PRE.trapezoid.count,trapezoid.T_start,$PRE.trapezoid.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (388): * Single equations (assignments): 377 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.000861/1.741, allocations: 359.8 kB / 1.108 GB, free: 253.4 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0011/1.742, allocations: 452.4 kB / 1.109 GB, free: 253 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01155/1.753, allocations: 4.605 MB / 1.113 GB, free: 248.3 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.366e-05/1.753, allocations: 31.75 kB / 1.113 GB, free: 248.3 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.059e-05/1.753, allocations: 4 kB / 1.113 GB, free: 248.3 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.243e-05/1.754, allocations: 11.95 kB / 1.113 GB, free: 248.3 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01776/1.771, allocations: 9.039 MB / 1.122 GB, free: 239.2 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.464e-05/1.771, allocations: 4 kB / 1.122 GB, free: 239.1 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00417/1.776, allocations: 0.8431 MB / 1.123 GB, free: 238.3 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.368e-05/1.776, allocations: 16 kB / 1.123 GB, free: 238.3 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003447/1.776, allocations: 79.94 kB / 1.123 GB, free: 238.2 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00171/1.778, allocations: 5.939 MB / 1.129 GB, free: 232 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.19e-06/1.778, allocations: 8 kB / 1.129 GB, free: 232 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01163/1.789, allocations: 4.539 MB / 1.133 GB, free: 227.3 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002238/1.792, allocations: 0.975 MB / 1.134 GB, free: 226.3 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0009364/1.793, allocations: 52 kB / 1.134 GB, free: 226.3 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004975/1.798, allocations: 0.5016 MB / 1.135 GB, free: 225.8 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003535/1.798, allocations: 189.7 kB / 1.135 GB, free: 225.6 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002676/1.798, allocations: 131.9 kB / 1.135 GB, free: 225.5 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.003033/1.801, allocations: 2.436 MB / 1.137 GB, free: 223 MB / 0.7325 GB Notification: Performance of sort global known variables: time 2.61e-07/1.801, allocations: 3.938 kB / 1.137 GB, free: 223 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.004932/1.806, allocations: 2.297 MB / 1.14 GB, free: 220.8 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 20 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,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 (279): * Single equations (assignments): 265 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001266/1.807, allocations: 0.7039 MB / 1.14 GB, free: 220.1 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.02342/1.831, allocations: 7.722 MB / 1.148 GB, free: 212.4 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 1.026e-05/1.831, allocations: 448 / 1.148 GB, free: 212.4 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.005669/1.837, allocations: 2.262 MB / 1.15 GB, free: 210.1 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.008574/1.845, allocations: 1.955 MB / 1.152 GB, free: 208.3 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01482/1.86, allocations: 8.191 MB / 1.16 GB, free: 200 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001354/1.861, allocations: 2.379 MB / 1.162 GB, free: 197.6 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.006102/1.868, allocations: 1.231 MB / 1.163 GB, free: 196.4 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001196/1.869, allocations: 375.3 kB / 1.164 GB, free: 196 MB / 0.7325 GB Notification: Performance of SimCode: time 1.242e-06/1.869, allocations: 0 / 1.164 GB, free: 196 MB / 0.7325 GB Notification: Performance of Templates: time 0.1127/1.981, allocations: 86.79 MB / 1.249 GB, free: 110 MB / 0.7325 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.makefile (rm -f IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.sim & ./IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.pipe 2>&1)