Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable.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 9.1.2-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.2-maint.9.1.x/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.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|zon.TAir",fileNamePrefix="Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable") translateModel(Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|zon.TAir",fileNamePrefix="Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001215/0.001215, allocations: 91.77 kB / 15.06 MB, free: 1.098 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001553/0.001553, allocations: 172.7 kB / 15.95 MB, free: 208 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.555/1.555, allocations: 223.3 MB / 240 MB, free: 5.422 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.2-maint.9.1.x/package.mo): time 2.557/2.557, allocations: 390.9 MB / 0.666 GB, free: 2.496 MB / 0.5137 GB Notification: Performance of FrontEnd - loaded program: time 0.0003629/0.0003629, allocations: 8 kB / 0.8153 GB, free: 13.65 MB / 0.67 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.9333/0.9337, allocations: 142.4 MB / 0.9544 GB, free: 7.715 MB / 0.7169 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable): time 0.2239/1.158, allocations: 167.4 MB / 1.118 GB, free: 7.605 MB / 0.8731 GB Notification: Performance of NFInst.instExpressions: time 0.02924/1.187, allocations: 19.5 MB / 1.137 GB, free: 4.059 MB / 0.8887 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003638/1.191, allocations: 67.62 kB / 1.137 GB, free: 3.992 MB / 0.8887 GB Notification: Performance of NFTyping.typeComponents: time 0.002782/1.193, allocations: 0.6473 MB / 1.138 GB, free: 3.34 MB / 0.8887 GB Notification: Performance of NFTyping.typeBindings: time 0.007292/1.201, allocations: 1.812 MB / 1.139 GB, free: 1.527 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.007345/1.208, allocations: 2.21 MB / 1.142 GB, free: 15.34 MB / 0.9044 GB Notification: Performance of NFFlatten.flatten: time 0.005404/1.214, allocations: 3.687 MB / 1.145 GB, free: 11.64 MB / 0.9044 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00295/1.217, allocations: 1.631 MB / 1.147 GB, free: 9.969 MB / 0.9044 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003192/1.22, allocations: 1.256 MB / 1.148 GB, free: 8.707 MB / 0.9044 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001839/1.222, allocations: 1.019 MB / 1.149 GB, free: 7.684 MB / 0.9044 GB Notification: Performance of NFPackage.collectConstants: time 0.000216/1.222, allocations: 68 kB / 1.149 GB, free: 7.617 MB / 0.9044 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003129/1.225, allocations: 1.072 MB / 1.15 GB, free: 6.543 MB / 0.9044 GB Notification: Performance of NFScalarize.scalarize: time 0.0005501/1.226, allocations: 478.1 kB / 1.151 GB, free: 6.074 MB / 0.9044 GB Notification: Performance of NFVerifyModel.verify: time 0.0006535/1.226, allocations: 424.6 kB / 1.151 GB, free: 5.652 MB / 0.9044 GB Notification: Performance of NFConvertDAE.convert: time 0.003632/1.23, allocations: 2.891 MB / 1.154 GB, free: 2.754 MB / 0.9044 GB Notification: Performance of FrontEnd - DAE generated: time 5.621e-06/1.23, allocations: 3.938 kB / 1.154 GB, free: 2.75 MB / 0.9044 GB Notification: Performance of FrontEnd: time 2.515e-06/1.23, allocations: 0 / 1.154 GB, free: 2.75 MB / 0.9044 GB Notification: Performance of Transformations before backend: time 3.67e-05/1.23, allocations: 0 / 1.154 GB, free: 2.75 MB / 0.9044 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 436 * Number of variables: 436 Notification: Performance of Generate backend data structure: time 0.00421/1.234, allocations: 2.208 MB / 1.156 GB, free: 488 kB / 0.9044 GB Notification: Performance of prepare preOptimizeDAE: time 4.574e-05/1.234, allocations: 12.03 kB / 1.156 GB, free: 476 kB / 0.9044 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002907/1.237, allocations: 0.4929 MB / 1.156 GB, free: 15.97 MB / 0.92 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002636/1.24, allocations: 1.37 MB / 1.158 GB, free: 14.54 MB / 0.92 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002086/1.24, allocations: 161.1 kB / 1.158 GB, free: 14.38 MB / 0.92 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002711/1.24, allocations: 172 kB / 1.158 GB, free: 14.21 MB / 0.92 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003812/1.244, allocations: 1.971 MB / 1.16 GB, free: 12.18 MB / 0.92 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.377e-05/1.244, allocations: 3.938 kB / 1.16 GB, free: 12.18 MB / 0.92 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001626/1.244, allocations: 75.98 kB / 1.16 GB, free: 12.1 MB / 0.92 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.469e-05/1.244, allocations: 40 kB / 1.16 GB, free: 12.06 MB / 0.92 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00356/1.248, allocations: 1.956 MB / 1.162 GB, free: 10.1 MB / 0.92 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 0.01079/1.259, allocations: 6.846 MB / 1.169 GB, free: 2.957 MB / 0.92 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002544/1.261, allocations: 1.521 MB / 1.17 GB, free: 1.367 MB / 0.92 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001258/1.263, allocations: 0.6466 MB / 1.171 GB, free: 0.7188 MB / 0.92 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005399/1.263, allocations: 312.5 kB / 1.171 GB, free: 368 kB / 0.92 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001612/1.265, allocations: 0.9051 MB / 1.172 GB, free: 15.43 MB / 0.9356 GB Notification: Performance of pre-optimization done (n=141): time 4.178e-06/1.265, allocations: 4 kB / 1.172 GB, free: 15.43 MB / 0.9356 GB Notification: Performance of matching and sorting (n=141): time 0.005234/1.27, allocations: 2.23 MB / 1.174 GB, free: 13.16 MB / 0.9356 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002042/1.27, allocations: 278.3 kB / 1.175 GB, free: 12.83 MB / 0.9356 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002001/1.272, allocations: 1.23 MB / 1.176 GB, free: 11.58 MB / 0.9356 GB Notification: Performance of collectPreVariables (initialization): time 0.0001448/1.272, allocations: 61.69 kB / 1.176 GB, free: 11.51 MB / 0.9356 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006861/1.273, allocations: 0.7276 MB / 1.176 GB, free: 10.77 MB / 0.9356 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004587/1.274, allocations: 457.4 kB / 1.177 GB, free: 10.32 MB / 0.9356 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001285/1.274, allocations: 32 kB / 1.177 GB, free: 10.29 MB / 0.9356 GB Notification: Performance of setup shared object (initialization): time 0.0001637/1.274, allocations: 365.9 kB / 1.177 GB, free: 9.926 MB / 0.9356 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001153/1.275, allocations: 0.5661 MB / 1.178 GB, free: 9.359 MB / 0.9356 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001328/1.276, allocations: 0.8084 MB / 1.179 GB, free: 8.492 MB / 0.9356 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001265/1.278, allocations: 0.6987 MB / 1.179 GB, free: 7.793 MB / 0.9356 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.712e-06/1.278, allocations: 0 / 1.179 GB, free: 7.793 MB / 0.9356 GB Notification: Performance of matching and sorting (n=192) (initialization): time 0.003255/1.281, allocations: 1.697 MB / 1.181 GB, free: 6.078 MB / 0.9356 GB Notification: Performance of prepare postOptimizeDAE: time 4.585e-05/1.281, allocations: 35.58 kB / 1.181 GB, free: 6.039 MB / 0.9356 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.387e-05/1.281, allocations: 7.953 kB / 1.181 GB, free: 6.031 MB / 0.9356 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001896/1.281, allocations: 58.83 kB / 1.181 GB, free: 5.965 MB / 0.9356 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001594/1.283, allocations: 339.5 kB / 1.181 GB, free: 5.633 MB / 0.9356 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004432/1.283, allocations: 0.5774 MB / 1.182 GB, free: 5.023 MB / 0.9356 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001635/1.285, allocations: 216.6 kB / 1.182 GB, free: 4.812 MB / 0.9356 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001395/1.285, allocations: 71.91 kB / 1.182 GB, free: 4.742 MB / 0.9356 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 12 * Number of states: 0 () * Number of discrete variables: 39 (zon.fmuZon.tLast,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,$PRE.building.weaDat.locTim.tNext,building.weaDat.locTim.tNext,$PRE.building.weaDat.conTimMin.tNext,building.weaDat.conTimMin.tNext,$PRE.building.weaDat.conTim.tNext,building.weaDat.conTim.tNext,$PRE.building.weaDat.eqnTim.tNext,building.weaDat.eqnTim.tNext,$PRE.building.weaDat.decAng.tNext,building.weaDat.decAng.tNext,zon.fmuZon.TRad,zon.fmuZon.QLat_flow,zon.fmuZon.QPeo_flow,zon.fmuZon.yEP[1],zon.fmuZon.yEP[2],zon.fmuZon.yEP[3],zon.fmuZon.yEP[4],zon.fmuZon.yEP[5],$PRE.zon.fmuZon.tNext,zon.fmuZon.tNext,$PRE.zon.fmuZon.tLast,zon.fmuZon.dtLast,$PRE.zon.fmuZon.mInlet_flow,zon.fmuZon.mInlet_flow,$PRE.zon.fmuZon.TAveInlet,zon.fmuZon.TAveInlet,zon.fmuZon.TRooLast,zon.fmuZon.QConLast_flow,building.weaDat.conTimMin.canRepeatWeatherFile,building.weaDat.conTim.canRepeatWeatherFile,zon.fmuZon.nObj,zon.vol.computeCSen) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (184): * Single equations (assignments): 181 * Array equations: 2 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {1 2} Notification: Performance of prepare postOptimizeDAE: time 0.001217/1.286, allocations: 0.5305 MB / 1.183 GB, free: 4.195 MB / 0.9356 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002613/1.287, allocations: 170 kB / 1.183 GB, free: 4.027 MB / 0.9356 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003594/1.29, allocations: 1.768 MB / 1.185 GB, free: 2.242 MB / 0.9356 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.821e-05/1.29, allocations: 16 kB / 1.185 GB, free: 2.227 MB / 0.9356 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.027e-05/1.29, allocations: 4 kB / 1.185 GB, free: 2.223 MB / 0.9356 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002781/1.293, allocations: 1.488 MB / 1.186 GB, free: 0.7031 MB / 0.9356 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007552/1.301, allocations: 3.834 MB / 1.19 GB, free: 12.79 MB / 0.9512 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.284e-06/1.301, allocations: 4.031 kB / 1.19 GB, free: 12.78 MB / 0.9512 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001059/1.302, allocations: 239.7 kB / 1.19 GB, free: 12.55 MB / 0.9512 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003247/1.302, allocations: 64.8 kB / 1.19 GB, free: 12.48 MB / 0.9512 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001266/1.302, allocations: 51.95 kB / 1.19 GB, free: 12.43 MB / 0.9512 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002114/1.304, allocations: 1.58 MB / 1.192 GB, free: 10.72 MB / 0.9512 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.886e-06/1.304, allocations: 0 / 1.192 GB, free: 10.72 MB / 0.9512 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00484/1.309, allocations: 2.562 MB / 1.194 GB, free: 8.109 MB / 0.9512 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00125/1.31, allocations: 482.5 kB / 1.195 GB, free: 7.617 MB / 0.9512 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003855/1.311, allocations: 31.98 kB / 1.195 GB, free: 7.586 MB / 0.9512 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001451/1.312, allocations: 139.8 kB / 1.195 GB, free: 7.449 MB / 0.9512 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002518/1.312, allocations: 105.2 kB / 1.195 GB, free: 7.344 MB / 0.9512 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001561/1.313, allocations: 63.95 kB / 1.195 GB, free: 7.281 MB / 0.9512 GB Notification: Performance of sorting global known variables: time 0.001656/1.314, allocations: 0.8266 MB / 1.196 GB, free: 6.453 MB / 0.9512 GB Notification: Performance of sort global known variables: time 1.11e-07/1.314, allocations: 0 / 1.196 GB, free: 6.453 MB / 0.9512 GB Notification: Performance of remove unused functions: time 0.002376/1.317, allocations: 0.6273 MB / 1.196 GB, free: 5.824 MB / 0.9512 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 3 (zon.vol.medium.Xi[1],zon.vol.U,zon.vol.m) * Number of discrete variables: 26 ($whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,building.weaDat.locTim.tNext,building.weaDat.conTimMin.tNext,building.weaDat.conTim.tNext,building.weaDat.eqnTim.tNext,building.weaDat.decAng.tNext,zon.fmuZon.TRad,zon.fmuZon.QLat_flow,zon.fmuZon.QPeo_flow,zon.fmuZon.yEP[1],zon.fmuZon.yEP[2],zon.fmuZon.yEP[3],zon.fmuZon.yEP[4],zon.fmuZon.yEP[5],zon.fmuZon.tNext,zon.fmuZon.tLast,zon.fmuZon.dtLast,zon.fmuZon.mInlet_flow,zon.fmuZon.TAveInlet,zon.fmuZon.TRooLast,zon.fmuZon.QConLast_flow) * Number of discrete states: 10 (zon.fmuZon.tNext,zon.fmuZon.tLast,building.weaDat.conTimMin.tNext,building.weaDat.decAng.tNext,building.weaDat.eqnTim.tNext,building.weaDat.conTim.tNext,building.weaDat.locTim.tNext,zon.fmuZon.TAveInlet,zon.fmuZon.mInlet_flow,zon.fmuZon.QGaiRad_flow) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (147): * Single equations (assignments): 129 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 16 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(1,100.0%) 2} * Non-linear torn systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.002443/1.319, allocations: 0.9093 MB / 1.197 GB, free: 5.16 MB / 0.9512 GB Notification: Performance of simCode: created initialization part: time 0.003149/1.322, allocations: 1.471 MB / 1.199 GB, free: 3.676 MB / 0.9512 GB Notification: Performance of simCode: created event and clocks part: time 9.748e-06/1.322, allocations: 4 kB / 1.199 GB, free: 3.672 MB / 0.9512 GB Notification: Performance of simCode: created simulation system equations: time 0.001745/1.324, allocations: 0.9044 MB / 1.2 GB, free: 2.742 MB / 0.9512 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003151/1.327, allocations: 0.5612 MB / 1.2 GB, free: 2.191 MB / 0.9512 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00942/1.337, allocations: 4.404 MB / 1.205 GB, free: 13.74 MB / 0.9669 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00163/1.338, allocations: 1.438 MB / 1.206 GB, free: 12.27 MB / 0.9669 GB Notification: Performance of simCode: alias equations: time 0.002502/1.341, allocations: 476.1 kB / 1.206 GB, free: 11.8 MB / 0.9669 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007774/1.342, allocations: 215.3 kB / 1.207 GB, free: 11.59 MB / 0.9669 GB Notification: Performance of SimCode: time 1.773e-06/1.342, allocations: 0 / 1.207 GB, free: 11.59 MB / 0.9669 GB Notification: Performance of Templates: time 0.05802/1.4, allocations: 26.97 MB / 1.233 GB, free: 0.9102 MB / 0.9825 GB make -j1 -f Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable.makefile (rm -f Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable.pipe ; mkfifo Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable.pipe ; head -c 1048576 < Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable.pipe >> ../files/Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable.sim & ./Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_9_Buildings.ThermalZones.EnergyPlus_9_6_0.Validation.OutputVariable.NoOutputVariable.pipe 2>&1)