Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.conf.json
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/IBPSA 3.0.0-master/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 IBPSA with version 3.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/IBPSA 3.0.0-master/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)
Running command: translateModel(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement,tolerance=1e-06,outputFormat="empty",numberOfIntervals=17520,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement")
translateModel(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement,tolerance=1e-06,outputFormat="empty",numberOfIntervals=17520,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement")
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0008536/0.0008536, allocations: 174.8 kB / 16.08 MB, free: 5.73 MB / 13.93 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/IBPSA 3.0.0-master/package.mo): time 0.4422/0.4422, allocations: 89.07 MB / 105.9 MB, free: 12.45 MB / 90.72 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.255/1.255, allocations: 225.7 MB / 353.2 MB, free: 1.102 MB / 282.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007384/0.0007384, allocations: 102.3 kB / 425.4 MB, free: 6.641 MB / 314.7 MB
Notification: Performance of FrontEnd - loaded program: time 0.0002814/0.0002814, allocations: 8 kB / 0.4955 GB, free: 4.539 MB / 394.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2623/0.2626, allocations: 71.33 MB / 0.5652 GB, free: 42.36 MB / 410.7 MB
Notification: Performance of NFInst.instantiate(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement): time 0.3836/0.6463, allocations: 147.8 MB / 0.7095 GB, free: 2.73 MB / 0.4948 GB
Notification: Performance of NFInst.instExpressions: time 0.02591/0.6722, allocations: 29.83 MB / 0.7387 GB, free: 12.48 MB / 0.5105 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.003244/0.6755, allocations: 60.47 kB / 0.7387 GB, free: 12.48 MB / 0.5105 GB
Notification: Performance of NFTyping.typeComponents: time 0.002072/0.6776, allocations: 0.8747 MB / 0.7396 GB, free: 12.47 MB / 0.5105 GB
Notification: Performance of NFTyping.typeBindings: time 0.00428/0.6819, allocations: 1.452 MB / 0.741 GB, free: 12.4 MB / 0.5105 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003577/0.6855, allocations: 1.442 MB / 0.7424 GB, free: 12.34 MB / 0.5105 GB
Notification: Performance of NFFlatten.flatten: time 0.004988/0.6905, allocations: 4.768 MB / 0.7471 GB, free: 12.32 MB / 0.5105 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.00383/0.6943, allocations: 3.355 MB / 0.7503 GB, free: 11.75 MB / 0.5105 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001846/0.6962, allocations: 1.31 MB / 0.7516 GB, free: 11.75 MB / 0.5105 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001965/0.6982, allocations: 1.8 MB / 0.7534 GB, free: 11.72 MB / 0.5105 GB
Notification: Performance of NFPackage.collectConstants: time 0.0002877/0.6985, allocations: 98.09 kB / 0.7535 GB, free: 11.72 MB / 0.5105 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001526/0.7, allocations: 0.6688 MB / 0.7541 GB, free: 11.7 MB / 0.5105 GB
Notification: Performance of NFScalarize.scalarize: time 0.000527/0.7005, allocations: 0.6995 MB / 0.7548 GB, free: 11.55 MB / 0.5105 GB
Notification: Performance of NFVerifyModel.verify: time 0.001314/0.7019, allocations: 1.474 MB / 0.7562 GB, free: 10.96 MB / 0.5105 GB
Notification: Performance of NFConvertDAE.convert: time 0.004359/0.7062, allocations: 5.029 MB / 0.7612 GB, free: 9.066 MB / 0.5105 GB
Notification: Performance of FrontEnd - DAE generated: time 6.322e-06/0.7062, allocations: 0 / 0.7612 GB, free: 9.066 MB / 0.5105 GB
Notification: Performance of FrontEnd: time 1.413e-06/0.7063, allocations: 3.938 kB / 0.7612 GB, free: 9.062 MB / 0.5105 GB
Notification: Performance of Transformations before backend: time 9.275e-05/0.7064, allocations: 0 / 0.7612 GB, free: 9.062 MB / 0.5105 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 790
 * Number of variables: 790
Notification: Performance of Generate backend data structure: time 0.006552/0.7129, allocations: 3.649 MB / 0.7647 GB, free: 6.82 MB / 0.5105 GB
Notification: Performance of prepare preOptimizeDAE: time 3.326e-05/0.713, allocations: 8.25 kB / 0.7647 GB, free: 6.82 MB / 0.5105 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0121/0.7251, allocations: 2.871 MB / 0.7675 GB, free: 5.5 MB / 0.5105 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.004605/0.7297, allocations: 2.171 MB / 0.7696 GB, free: 4.594 MB / 0.5105 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001374/0.7299, allocations: 239.6 kB / 0.7699 GB, free: 4.578 MB / 0.5105 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005792/0.7305, allocations: 303.3 kB / 0.7702 GB, free: 4.574 MB / 0.5105 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01004/0.7405, allocations: 4.98 MB / 0.775 GB, free: 3.02 MB / 0.5105 GB
Notification: Performance of preOpt findStateOrder (simulation): time 5.201e-05/0.7406, allocations: 0 / 0.775 GB, free: 3.02 MB / 0.5105 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002969/0.7409, allocations: 133 kB / 0.7752 GB, free: 3.016 MB / 0.5105 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.456e-05/0.7409, allocations: 74.94 kB / 0.7752 GB, free: 3.016 MB / 0.5105 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01316/0.7541, allocations: 6.181 MB / 0.7813 GB, free: 14.27 MB / 0.5261 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 0.02326/0.7774, allocations: 13.67 MB / 0.7946 GB, free: 3.566 MB / 0.5261 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008686/0.7861, allocations: 4.332 MB / 0.7988 GB, free: 492 kB / 0.5261 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004577/0.7907, allocations: 2.317 MB / 0.8011 GB, free: 14.82 MB / 0.5417 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0008125/0.7916, allocations: 0.666 MB / 0.8018 GB, free: 14.05 MB / 0.5417 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004679/0.7963, allocations: 2.374 MB / 0.8041 GB, free: 12.21 MB / 0.5417 GB
Notification: Performance of pre-optimization done (n=257): time 4.177e-06/0.7963, allocations: 0 / 0.8041 GB, free: 12.21 MB / 0.5417 GB
Notification: Performance of matching and sorting (n=257): time 0.01476/0.8111, allocations: 6.947 MB / 0.8109 GB, free: 6.75 MB / 0.5417 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 9.524e-05/0.8112, allocations: 208.9 kB / 0.8111 GB, free: 6.504 MB / 0.5417 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003297/0.8145, allocations: 2.286 MB / 0.8133 GB, free: 4.766 MB / 0.5417 GB
Notification: Performance of collectPreVariables (initialization): time 0.0002663/0.8148, allocations: 67.77 kB / 0.8134 GB, free: 4.727 MB / 0.5417 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0009397/0.8157, allocations: 1.293 MB / 0.8146 GB, free: 3.922 MB / 0.5417 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0007074/0.8164, allocations: 0.859 MB / 0.8155 GB, free: 3.184 MB / 0.5417 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001702/0.8166, allocations: 43.81 kB / 0.8155 GB, free: 3.176 MB / 0.5417 GB
Notification: Performance of setup shared object (initialization): time 0.0001639/0.8168, allocations: 398.9 kB / 0.8159 GB, free: 2.82 MB / 0.5417 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.003918/0.8207, allocations: 1.886 MB / 0.8177 GB, free: 1.43 MB / 0.5417 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.004371/0.8251, allocations: 2.186 MB / 0.8199 GB, free: 15.72 MB / 0.5573 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.00816/0.8333, allocations: 4.06 MB / 0.8238 GB, free: 12.76 MB / 0.5573 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.295e-05/0.8333, allocations: 4 kB / 0.8238 GB, free: 12.76 MB / 0.5573 GB
Notification: Performance of matching and sorting (n=294) (initialization): time 0.01054/0.8439, allocations: 4.695 MB / 0.8284 GB, free: 9.219 MB / 0.5573 GB
Notification: Performance of prepare postOptimizeDAE: time 2.908e-05/0.8439, allocations: 8 kB / 0.8284 GB, free: 9.211 MB / 0.5573 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.697e-05/0.8439, allocations: 4 kB / 0.8284 GB, free: 9.207 MB / 0.5573 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0006509/0.8446, allocations: 234.3 kB / 0.8286 GB, free: 9.027 MB / 0.5573 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003827/0.8484, allocations: 0.7746 MB / 0.8294 GB, free: 8.297 MB / 0.5573 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003839/0.8523, allocations: 3.094 MB / 0.8324 GB, free: 5.859 MB / 0.5573 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003562/0.8559, allocations: 0.5448 MB / 0.833 GB, free: 5.348 MB / 0.5573 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005459/0.8564, allocations: 113.8 kB / 0.8331 GB, free: 5.258 MB / 0.5573 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 17
 * Number of states: 0 ()
 * Number of discrete variables: 13 ($whenCondition1,$PRE.intGai.nextTimeEvent,$whenCondition3,$whenCondition2,$PRE.weaDat.conTimMin.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTim.tNext,intGai.nextTimeEvent,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEventScaled,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.canRepeatWeatherFile)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (272):
 * Single equations (assignments): 271
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(2,21,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 0.002324/0.8588, allocations: 0.8971 MB / 0.8339 GB, free: 4.656 MB / 0.5573 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008132/0.8596, allocations: 256.8 kB / 0.8342 GB, free: 4.402 MB / 0.5573 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01301/0.8726, allocations: 5.256 MB / 0.8393 GB, free: 0.5078 MB / 0.5573 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.025e-05/0.8727, allocations: 28 kB / 0.8393 GB, free: 492 kB / 0.5573 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.427e-05/0.8727, allocations: 4 kB / 0.8394 GB, free: 488 kB / 0.5573 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.406e-05/0.8728, allocations: 19.94 kB / 0.8394 GB, free: 468 kB / 0.5573 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01928/0.8921, allocations: 8.816 MB / 0.848 GB, free: 7.875 MB / 0.573 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.411e-05/0.8921, allocations: 0 / 0.848 GB, free: 7.875 MB / 0.573 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003653/0.8958, allocations: 0.7208 MB / 0.8487 GB, free: 7.176 MB / 0.573 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0008484/0.8967, allocations: 262.4 kB / 0.8489 GB, free: 6.91 MB / 0.573 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004902/0.8972, allocations: 71.94 kB / 0.849 GB, free: 6.84 MB / 0.573 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004487/0.9017, allocations: 4.803 MB / 0.8537 GB, free: 1.77 MB / 0.573 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.589e-06/0.9017, allocations: 0 / 0.8537 GB, free: 1.77 MB / 0.573 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01752/0.9192, allocations: 7.522 MB / 0.861 GB, free: 10.16 MB / 0.5886 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.002371/0.9216, allocations: 0.8172 MB / 0.8618 GB, free: 9.324 MB / 0.5886 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001074/0.9227, allocations: 48 kB / 0.8619 GB, free: 9.277 MB / 0.5886 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003845/0.9266, allocations: 423.2 kB / 0.8623 GB, free: 8.863 MB / 0.5886 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008246/0.9275, allocations: 161.9 kB / 0.8624 GB, free: 8.703 MB / 0.5886 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0005623/0.9281, allocations: 99.86 kB / 0.8625 GB, free: 8.605 MB / 0.5886 GB
Notification: Performance of sorting global known variables: time 0.003082/0.9312, allocations: 1.661 MB / 0.8642 GB, free: 6.93 MB / 0.5886 GB
Notification: Performance of sort global known variables: time 2.8e-07/0.9312, allocations: 0 / 0.8642 GB, free: 6.93 MB / 0.5886 GB
Notification: Performance of remove unused functions: time 0.003731/0.935, allocations: 0.9661 MB / 0.8651 GB, free: 5.961 MB / 0.5886 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 3 (thermalZoneOneElement.volAir.dynBal.U,thermalZoneOneElement.volAir.dynBal.m,thermalZoneOneElement.extWallRC.thermCapExt[1].T)
 * Number of discrete variables: 7 ($whenCondition3,$whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext,intGai.nextTimeEvent,intGai.nextTimeEventScaled)
 * Number of discrete states: 4 (intGai.nextTimeEvent,intGai.nextTimeEventScaled,weaDat.conTimMin.tNext,weaDat.conTim.tNext)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (251):
 * Single equations (assignments): 244
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 4
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 3
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 2 systems
   {(2,16,100.0%), (1,3,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(1,2)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.00279/0.9378, allocations: 1.169 MB / 0.8662 GB, free: 5.137 MB / 0.5886 GB
Notification: Performance of simCode: created initialization part: time 0.01089/0.9487, allocations: 4.571 MB / 0.8707 GB, free: 0.5508 MB / 0.5886 GB
Notification: Performance of simCode: created event and clocks part: time 8.877e-06/0.9487, allocations: 4 kB / 0.8707 GB, free: 0.5469 MB / 0.5886 GB
Notification: Performance of simCode: created simulation system equations: time 0.005877/0.9546, allocations: 2.605 MB / 0.8733 GB, free: 13.96 MB / 0.6042 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003868/0.9585, allocations: 0.5844 MB / 0.8738 GB, free: 13.38 MB / 0.6042 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01621/0.9747, allocations: 9.028 MB / 0.8826 GB, free: 4.309 MB / 0.6042 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002823/0.9776, allocations: 2.369 MB / 0.885 GB, free: 1.914 MB / 0.6042 GB
Notification: Performance of simCode: alias equations: time 0.00536/0.983, allocations: 1.092 MB / 0.886 GB, free: 0.8203 MB / 0.6042 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001621/0.9846, allocations: 255.3 kB / 0.8863 GB, free: 0.5703 MB / 0.6042 GB
Notification: Performance of SimCode: time 5.92e-07/0.9846, allocations: 0 / 0.8863 GB, free: 0.5703 MB / 0.6042 GB
Notification: Performance of Templates: time 0.06813/1.053, allocations: 41.18 MB / 0.9265 GB, free: 7.746 MB / 0.6511 GB
make -j1 -f IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.makefile
(rm -f IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe ; mkfifo IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe >> ../files/IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.sim & ./IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe 2>&1)