Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal.conf.json
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo)
Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo)
Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo)
Using package Buildings with version 9.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo)
Running command: translateModel(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal")
translateModel(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal")
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo): time 1.813/1.813, allocations: 306.1 MB / 321.4 MB, free: 10.77 MB / 250.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001052/0.001052, allocations: 179.5 kB / 393.1 MB, free: 4.082 MB / 314.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.34/1.34, allocations: 225.7 MB / 0.6743 GB, free: 12.63 MB / 0.4948 GB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007446/0.0007448, allocations: 92.12 kB / 0.7935 GB, free: 39.97 MB / 0.5417 GB
Notification: Performance of FrontEnd - loaded program: time 0.000323/0.000323, allocations: 9.094 kB / 0.9224 GB, free: 8.68 MB / 0.6355 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.5189/0.5193, allocations: 121.3 MB / 1.041 GB, free: 57.95 MB / 0.698 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal): time 0.002125/0.5214, allocations: 2.049 MB / 1.043 GB, free: 56.55 MB / 0.698 GB
Notification: Performance of NFInst.instExpressions: time 0.1316/0.6531, allocations: 140.6 MB / 1.18 GB, free: 2.07 MB / 0.7448 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0002361/0.6534, allocations: 0 / 1.18 GB, free: 2.07 MB / 0.7448 GB
Notification: Performance of NFTyping.typeComponents: time 0.0003305/0.6537, allocations: 89.53 kB / 1.18 GB, free: 2.008 MB / 0.7448 GB
Notification: Performance of NFTyping.typeBindings: time 0.0005389/0.6543, allocations: 211.1 kB / 1.18 GB, free: 1.848 MB / 0.7448 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001508/0.6558, allocations: 0.5829 MB / 1.181 GB, free: 1.367 MB / 0.7448 GB
Notification: Performance of NFFlatten.flatten: time 0.0003975/0.6562, allocations: 413 kB / 1.181 GB, free: 1.012 MB / 0.7448 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0001074/0.6563, allocations: 40.22 kB / 1.182 GB, free: 0.9766 MB / 0.7448 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0001874/0.6565, allocations: 156 kB / 1.182 GB, free: 0.8438 MB / 0.7448 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0002834/0.6568, allocations: 198.4 kB / 1.182 GB, free: 0.6953 MB / 0.7448 GB
Notification: Performance of NFPackage.collectConstants: time 4.895e-05/0.6568, allocations: 16 kB / 1.182 GB, free: 0.6797 MB / 0.7448 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001111/0.658, allocations: 0.6447 MB / 1.182 GB, free: 168 kB / 0.7448 GB
Notification: Performance of NFScalarize.scalarize: time 0.000106/0.6581, allocations: 71.2 kB / 1.183 GB, free: 116 kB / 0.7448 GB
Notification: Performance of NFVerifyModel.verify: time 0.0001979/0.6583, allocations: 175.3 kB / 1.183 GB, free: 15.95 MB / 0.7605 GB
Notification: Performance of NFConvertDAE.convert: time 0.0009144/0.6592, allocations: 0.6448 MB / 1.183 GB, free: 15.52 MB / 0.7605 GB
Notification: Performance of FrontEnd - DAE generated: time 5.07e-06/0.6592, allocations: 0 / 1.183 GB, free: 15.52 MB / 0.7605 GB
Notification: Performance of FrontEnd: time 2.625e-06/0.6592, allocations: 4 kB / 1.183 GB, free: 15.52 MB / 0.7605 GB
Notification: Performance of Transformations before backend: time 5.47e-06/0.6592, allocations: 0 / 1.183 GB, free: 15.52 MB / 0.7605 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 30
 * Number of variables: 30
Notification: Performance of Generate backend data structure: time 0.001444/0.6607, allocations: 0.6846 MB / 1.184 GB, free: 14.83 MB / 0.7605 GB
Notification: Performance of prepare preOptimizeDAE: time 3.545e-05/0.6607, allocations: 8.031 kB / 1.184 GB, free: 14.82 MB / 0.7605 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001526/0.6623, allocations: 155.8 kB / 1.184 GB, free: 14.71 MB / 0.7605 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004535/0.6627, allocations: 314.5 kB / 1.184 GB, free: 14.4 MB / 0.7605 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.444e-05/0.6628, allocations: 51 kB / 1.185 GB, free: 14.34 MB / 0.7605 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 6.067e-05/0.6629, allocations: 23.98 kB / 1.185 GB, free: 14.32 MB / 0.7605 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004511/0.6633, allocations: 212.6 kB / 1.185 GB, free: 14.14 MB / 0.7605 GB
Notification: Performance of preOpt findStateOrder (simulation): time 9.558e-06/0.6634, allocations: 0 / 1.185 GB, free: 14.14 MB / 0.7605 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.584e-05/0.6634, allocations: 4 kB / 1.185 GB, free: 14.13 MB / 0.7605 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.254e-06/0.6634, allocations: 4 kB / 1.185 GB, free: 14.13 MB / 0.7605 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002744/0.6637, allocations: 122.7 kB / 1.185 GB, free: 14.03 MB / 0.7605 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002563/0.6663, allocations: 0.9954 MB / 1.186 GB, free: 13.16 MB / 0.7605 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0008042/0.6671, allocations: 168.4 kB / 1.186 GB, free: 13 MB / 0.7605 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002227/0.6673, allocations: 91.03 kB / 1.186 GB, free: 12.92 MB / 0.7605 GB
Notification: Performance of preOpt evalFunc (simulation): time 2.08e-05/0.6673, allocations: 8.516 kB / 1.186 GB, free: 12.91 MB / 0.7605 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004099/0.6678, allocations: 191.3 kB / 1.186 GB, free: 12.74 MB / 0.7605 GB
Notification: Performance of pre-optimization done (n=19): time 1.753e-06/0.6678, allocations: 0 / 1.186 GB, free: 12.74 MB / 0.7605 GB
Notification: Performance of matching and sorting (n=19): time 0.004386/0.6722, allocations: 0.8802 MB / 1.187 GB, free: 12 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.808e-05/0.6722, allocations: 85.84 kB / 1.187 GB, free: 11.89 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004276/0.6727, allocations: 331.9 kB / 1.188 GB, free: 11.6 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 4.524e-05/0.6727, allocations: 33.7 kB / 1.188 GB, free: 11.56 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.000128/0.6729, allocations: 156.8 kB / 1.188 GB, free: 11.41 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 5.597e-05/0.6729, allocations: 52.2 kB / 1.188 GB, free: 11.37 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 2.729e-05/0.673, allocations: 12 kB / 1.188 GB, free: 11.36 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0001268/0.6731, allocations: 344.7 kB / 1.188 GB, free: 11.02 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003656/0.6735, allocations: 134.5 kB / 1.188 GB, free: 10.91 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004214/0.6739, allocations: 220.6 kB / 1.188 GB, free: 10.7 MB / 0.7605 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.000633/0.6745, allocations: 334.8 kB / 1.189 GB, free: 10.37 MB / 0.7605 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.096e-06/0.6746, allocations: 4.594 kB / 1.189 GB, free: 10.37 MB / 0.7605 GB
Notification: Performance of matching and sorting (n=40) (initialization): time 0.003859/0.6784, allocations: 0.8661 MB / 1.19 GB, free: 9.645 MB / 0.7605 GB
Notification: Performance of prepare postOptimizeDAE: time 4e-05/0.6785, allocations: 36.61 kB / 1.19 GB, free: 9.605 MB / 0.7605 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.626e-06/0.6785, allocations: 4 kB / 1.19 GB, free: 9.602 MB / 0.7605 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0009836/0.6795, allocations: 214.4 kB / 1.19 GB, free: 9.43 MB / 0.7605 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000249/0.6797, allocations: 34.8 kB / 1.19 GB, free: 9.402 MB / 0.7605 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003206/0.683, allocations: 2.231 MB / 1.192 GB, free: 7.105 MB / 0.7605 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006151/0.6836, allocations: 48.8 kB / 1.192 GB, free: 7.062 MB / 0.7605 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.532e-05/0.6837, allocations: 25.09 kB / 1.192 GB, free: 7.043 MB / 0.7605 GB
Warning: Assuming fixed start value for the following 1 variables:
         eva.off:DISCRETE(fixed = true protected = true )  "Signal, true when component is off" type: Boolean
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 5
 * Number of states: 0 ()
 * Number of discrete variables: 11 ($PRE.eva.off,$whenCondition2,eva.off,$whenCondition1,mAir_flow.a,mAir_flow.b,mAir_flow.last,$PRE.mAir_flow.nextEvent,mAir_flow.nextEvent,mAir_flow.nextEventScaled,int.local_reset)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (27):
 * Single equations (assignments): 24
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 1
 * Torn equation systems: 1
 * 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): 1 system
   {7}
 * Without analytic Jacobian (size): 0 systems
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 0 systems
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(1,2)}
Notification: Performance of prepare postOptimizeDAE: time 0.0003265/0.684, allocations: 187.5 kB / 1.192 GB, free: 6.852 MB / 0.7605 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 5.866e-05/0.6841, allocations: 35.62 kB / 1.192 GB, free: 6.816 MB / 0.7605 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 4.899e-05/0.6841, allocations: 30.84 kB / 1.192 GB, free: 6.785 MB / 0.7605 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.883e-06/0.6841, allocations: 0 / 1.192 GB, free: 6.785 MB / 0.7605 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.288e-06/0.6842, allocations: 0.7031 kB / 1.192 GB, free: 6.785 MB / 0.7605 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.928e-06/0.6842, allocations: 0.5625 kB / 1.192 GB, free: 6.785 MB / 0.7605 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003516/0.6877, allocations: 1.051 MB / 1.193 GB, free: 5.859 MB / 0.7605 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.208e-06/0.6877, allocations: 4.609 kB / 1.193 GB, free: 5.855 MB / 0.7605 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 5.812e-05/0.6878, allocations: 4.562 kB / 1.193 GB, free: 5.852 MB / 0.7605 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.000377/0.6882, allocations: 115.1 kB / 1.194 GB, free: 5.758 MB / 0.7605 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.142e-05/0.6882, allocations: 6.812 kB / 1.194 GB, free: 5.754 MB / 0.7605 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009904/0.6892, allocations: 0.7629 MB / 1.194 GB, free: 4.996 MB / 0.7605 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.465e-06/0.6892, allocations: 0.5156 kB / 1.194 GB, free: 4.996 MB / 0.7605 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003353/0.6926, allocations: 0.8799 MB / 1.195 GB, free: 4.234 MB / 0.7605 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001838/0.6928, allocations: 137.9 kB / 1.195 GB, free: 4.094 MB / 0.7605 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.131e-05/0.6928, allocations: 0.5625 kB / 1.195 GB, free: 4.094 MB / 0.7605 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000281/0.6931, allocations: 19.05 kB / 1.195 GB, free: 4.078 MB / 0.7605 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.546e-05/0.6932, allocations: 8.312 kB / 1.195 GB, free: 4.074 MB / 0.7605 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.519e-05/0.6932, allocations: 14.83 kB / 1.195 GB, free: 4.062 MB / 0.7605 GB
Notification: Performance of sorting global known variables: time 0.0003432/0.6936, allocations: 231.8 kB / 1.196 GB, free: 3.863 MB / 0.7605 GB
Notification: Performance of sort global known variables: time 1.472e-06/0.6936, allocations: 0 / 1.196 GB, free: 3.863 MB / 0.7605 GB
Notification: Performance of remove unused functions: time 0.000566/0.6942, allocations: 118.4 kB / 1.196 GB, free: 3.75 MB / 0.7605 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 2 (eva.m,int.y)
 * Number of discrete variables: 8 ($whenCondition2,$whenCondition1,eva.off,mAir_flow.a,mAir_flow.b,mAir_flow.last,mAir_flow.nextEvent,mAir_flow.nextEventScaled)
 * Number of discrete states: 7 (eva.off,mAir_flow.nextEvent,mAir_flow.last,mAir_flow.nextEventScaled,mAir_flow.b,mAir_flow.a,$whenCondition1)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (8):
 * Single equations (assignments): 6
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 1
 * 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): 1 system
   {7}
 * Without analytic Jacobian (size): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.0004162/0.6946, allocations: 195 kB / 1.196 GB, free: 3.566 MB / 0.7605 GB
Notification: Performance of simCode: created initialization part: time 0.001732/0.6963, allocations: 0.5583 MB / 1.196 GB, free: 3.035 MB / 0.7605 GB
Notification: Performance of simCode: created event and clocks part: time 2.274e-06/0.6963, allocations: 0 / 1.196 GB, free: 3.035 MB / 0.7605 GB
Notification: Performance of simCode: created simulation system equations: time 0.0008136/0.6972, allocations: 255 kB / 1.197 GB, free: 2.797 MB / 0.7605 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005052/0.6977, allocations: 66.59 kB / 1.197 GB, free: 2.746 MB / 0.7605 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001423/0.6991, allocations: 0.7138 MB / 1.197 GB, free: 2.082 MB / 0.7605 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003464/0.6995, allocations: 0.7603 MB / 1.198 GB, free: 1.328 MB / 0.7605 GB
Notification: Performance of simCode: alias equations: time 0.0001796/0.6997, allocations: 23.75 kB / 1.198 GB, free: 1.312 MB / 0.7605 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 6.813e-05/0.6997, allocations: 26.42 kB / 1.198 GB, free: 1.289 MB / 0.7605 GB
Notification: Performance of SimCode: time 2.525e-06/0.6998, allocations: 4 kB / 1.198 GB, free: 1.285 MB / 0.7605 GB
Notification: Performance of Templates: time 0.01391/0.7137, allocations: 6.859 MB / 1.205 GB, free: 12.96 MB / 0.7761 GB
make -j1 -f Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal.makefile
(rm -f Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal.pipe ; mkfifo Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal.pipe >> ../files/Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal.sim & ./Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_latest_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationFlowReversal.pipe 2>&1)