Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.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.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7,fileNamePrefix="IBPSA_latest_IBPSA_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase7",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7,fileNamePrefix="IBPSA_latest_IBPSA_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase7",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 0.001854/0.001854, allocations: 105 kB / 16.4 MB, free: 6.496 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001994/0.001994, allocations: 192 kB / 17.34 MB, free: 5.719 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.429/1.429, allocations: 222.9 MB / 241 MB, free: 15.09 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.8243/0.8243, allocations: 126.7 MB / 417.9 MB, free: 12.29 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001963/0.001963, allocations: 63.84 kB / 0.5735 GB, free: 26.99 MB / 446.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1446/0.1466, allocations: 78.87 MB / 0.6505 GB, free: 3.617 MB / 494.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7): time 0.4688/0.6154, allocations: 157.9 MB / 0.8047 GB, free: 12.37 MB / 0.5919 GB
Notification: Performance of NFInst.instExpressions: time 0.02404/0.6394, allocations: 22.14 MB / 0.8263 GB, free: 6.34 MB / 0.5919 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.002663/0.6421, allocations: 68.94 kB / 0.8264 GB, free: 6.316 MB / 0.5919 GB
Notification: Performance of NFTyping.typeComponents: time 0.002233/0.6444, allocations: 1.378 MB / 0.8278 GB, free: 5.633 MB / 0.5919 GB
Notification: Performance of NFTyping.typeBindings: time 0.002258/0.6467, allocations: 1.016 MB / 0.8287 GB, free: 5.086 MB / 0.5919 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001959/0.6487, allocations: 0.6476 MB / 0.8294 GB, free: 4.645 MB / 0.5919 GB
Notification: Performance of NFFlatten.flatten: time 0.002472/0.6512, allocations: 1.692 MB / 0.831 GB, free: 3.715 MB / 0.5919 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001562/0.6528, allocations: 0.9719 MB / 0.832 GB, free: 3.113 MB / 0.5919 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001283/0.6541, allocations: 0.7268 MB / 0.8327 GB, free: 2.746 MB / 0.5919 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.00159/0.6557, allocations: 1.196 MB / 0.8339 GB, free: 2.227 MB / 0.5919 GB
Notification: Performance of NFPackage.collectConstants: time 0.0002236/0.6559, allocations: 90.53 kB / 0.8339 GB, free: 2.227 MB / 0.5919 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0004361/0.6563, allocations: 140.7 kB / 0.8341 GB, free: 2.207 MB / 0.5919 GB
Notification: Performance of NFScalarize.scalarize: time 0.0004422/0.6568, allocations: 419.5 kB / 0.8345 GB, free: 1.934 MB / 0.5919 GB
Notification: Performance of NFVerifyModel.verify: time 0.0008218/0.6576, allocations: 0.659 MB / 0.8351 GB, free: 1.438 MB / 0.5919 GB
Notification: Performance of NFConvertDAE.convert: time 0.001923/0.6596, allocations: 1.614 MB / 0.8367 GB, free: 364 kB / 0.5919 GB
Notification: Performance of FrontEnd - DAE generated: time 2.895e-06/0.6596, allocations: 0 / 0.8367 GB, free: 364 kB / 0.5919 GB
Notification: Performance of FrontEnd: time 8.02e-07/0.6596, allocations: 0 / 0.8367 GB, free: 364 kB / 0.5919 GB
Notification: Performance of Transformations before backend: time 6.364e-05/0.6596, allocations: 3.281 kB / 0.8367 GB, free: 364 kB / 0.5919 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 157
 * Number of variables: 157
Notification: Performance of Generate backend data structure: time 0.003571/0.6632, allocations: 1.967 MB / 0.8386 GB, free: 14.84 MB / 0.6075 GB
Notification: Performance of prepare preOptimizeDAE: time 3.343e-05/0.6633, allocations: 14.28 kB / 0.8386 GB, free: 14.83 MB / 0.6075 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001705/0.6634, allocations: 109.1 kB / 0.8387 GB, free: 14.74 MB / 0.6075 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000353/0.6638, allocations: 199.1 kB / 0.8389 GB, free: 14.63 MB / 0.6075 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001436/0.6653, allocations: 0.8949 MB / 0.8398 GB, free: 13.95 MB / 0.6075 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001512/0.6654, allocations: 94.25 kB / 0.8399 GB, free: 13.88 MB / 0.6075 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001017/0.6655, allocations: 65.38 kB / 0.84 GB, free: 13.86 MB / 0.6075 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001331/0.6669, allocations: 0.7202 MB / 0.8407 GB, free: 13.41 MB / 0.6075 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.345e-05/0.6669, allocations: 4 kB / 0.8407 GB, free: 13.4 MB / 0.6075 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.582e-05/0.667, allocations: 25.66 kB / 0.8407 GB, free: 13.38 MB / 0.6075 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.176e-05/0.667, allocations: 15.16 kB / 0.8407 GB, free: 13.38 MB / 0.6075 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001139/0.6681, allocations: 0.546 MB / 0.8412 GB, free: 13.12 MB / 0.6075 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 0.004772/0.6729, allocations: 3.606 MB / 0.8448 GB, free: 10.05 MB / 0.6075 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.001359/0.6743, allocations: 0.6134 MB / 0.8454 GB, free: 9.73 MB / 0.6075 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0007353/0.675, allocations: 385.2 kB / 0.8457 GB, free: 9.539 MB / 0.6075 GB
Notification: Performance of preOpt evalFunc (simulation): time 4.739e-05/0.6751, allocations: 6.344 kB / 0.8457 GB, free: 9.539 MB / 0.6075 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0007435/0.6759, allocations: 380.2 kB / 0.8461 GB, free: 9.305 MB / 0.6075 GB
Notification: Performance of pre-optimization done (n=65): time 2.855e-06/0.6759, allocations: 3.938 kB / 0.8461 GB, free: 9.301 MB / 0.6075 GB
Notification: Performance of matching and sorting (n=65): time 0.005092/0.681, allocations: 1.786 MB / 0.8478 GB, free: 8.281 MB / 0.6075 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.536e-05/0.681, allocations: 71.8 kB / 0.8479 GB, free: 8.207 MB / 0.6075 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00247/0.6835, allocations: 2.255 MB / 0.8501 GB, free: 6.297 MB / 0.6075 GB
Notification: Performance of collectPreVariables (initialization): time 5.767e-05/0.6836, allocations: 45.69 kB / 0.8502 GB, free: 6.246 MB / 0.6075 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006533/0.6842, allocations: 0.7153 MB / 0.8509 GB, free: 5.523 MB / 0.6075 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0002025/0.6844, allocations: 222.5 kB / 0.8511 GB, free: 5.312 MB / 0.6075 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002173/0.6847, allocations: 134.6 kB / 0.8512 GB, free: 5.176 MB / 0.6075 GB
Notification: Performance of setup shared object (initialization): time 0.0001665/0.6848, allocations: 337.9 kB / 0.8515 GB, free: 4.84 MB / 0.6075 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006724/0.6855, allocations: 277.8 kB / 0.8518 GB, free: 4.566 MB / 0.6075 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007777/0.6863, allocations: 416.8 kB / 0.8522 GB, free: 4.109 MB / 0.6075 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001316/0.6876, allocations: 0.6655 MB / 0.8528 GB, free: 3.395 MB / 0.6075 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.457e-06/0.6876, allocations: 0 / 0.8528 GB, free: 3.395 MB / 0.6075 GB
Notification: Performance of matching and sorting (n=93) (initialization): time 0.00246/0.6901, allocations: 1.125 MB / 0.8539 GB, free: 2.262 MB / 0.6075 GB
Notification: Performance of prepare postOptimizeDAE: time 2.03e-05/0.6901, allocations: 8 kB / 0.8539 GB, free: 2.254 MB / 0.6075 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.999e-06/0.6902, allocations: 4 kB / 0.8539 GB, free: 2.25 MB / 0.6075 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0008639/0.691, allocations: 274.9 kB / 0.8542 GB, free: 1.98 MB / 0.6075 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004611/0.6915, allocations: 123.8 kB / 0.8543 GB, free: 1.859 MB / 0.6075 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00576/0.6973, allocations: 3.707 MB / 0.8579 GB, free: 14.03 MB / 0.6231 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005819/0.6979, allocations: 87.52 kB / 0.858 GB, free: 13.95 MB / 0.6231 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.306e-05/0.6979, allocations: 28 kB / 0.858 GB, free: 13.92 MB / 0.6231 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 17
 * Number of states: 0 ()
 * Number of discrete variables: 25 (assEqu.nFai,$PRE.assEqu.nFai,$whenCondition6,$PRE.intGai.nextTimeEvent,$whenCondition5,$PRE.reference.nextTimeEvent,$whenCondition4,$PRE.setTemp.nextTimeEvent,$whenCondition3,$whenCondition1,mean.y_last,$PRE.mean.y_last,assEqu.satisfied,$PRE.assEqu.satisfied,reference.nextTimeEventScaled,$PRE.reference.nextTimeEventScaled,reference.nextTimeEvent,$whenCondition2,setTemp.nextTimeEventScaled,$PRE.setTemp.nextTimeEventScaled,setTemp.nextTimeEvent,intGai.nextTimeEventScaled,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEvent,conHeaCoo.I.trigger_internal)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (67):
 * Single equations (assignments): 66
 * 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): 0 systems
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(2,25)}
Notification: Performance of prepare postOptimizeDAE: time 0.0006732/0.6986, allocations: 463.8 kB / 0.8585 GB, free: 13.46 MB / 0.6231 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001961/0.6988, allocations: 170.9 kB / 0.8587 GB, free: 13.29 MB / 0.6231 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0002975/0.6991, allocations: 183.7 kB / 0.8588 GB, free: 13.1 MB / 0.6231 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.059e-05/0.6991, allocations: 11.94 kB / 0.8588 GB, free: 13.09 MB / 0.6231 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 7.815e-06/0.6992, allocations: 0 / 0.8588 GB, free: 13.09 MB / 0.6231 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.137e-06/0.6992, allocations: 3.984 kB / 0.8588 GB, free: 13.09 MB / 0.6231 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003603/0.7028, allocations: 2.046 MB / 0.8608 GB, free: 10.99 MB / 0.6231 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.867e-06/0.7028, allocations: 0 / 0.8608 GB, free: 10.99 MB / 0.6231 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002891/0.7031, allocations: 63.89 kB / 0.8609 GB, free: 10.93 MB / 0.6231 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0008121/0.7039, allocations: 276 kB / 0.8612 GB, free: 10.65 MB / 0.6231 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.138e-05/0.704, allocations: 15.98 kB / 0.8612 GB, free: 10.64 MB / 0.6231 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006701/0.7107, allocations: 5.248 MB / 0.8663 GB, free: 5.113 MB / 0.6231 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.372e-06/0.7107, allocations: 4.031 kB / 0.8663 GB, free: 5.109 MB / 0.6231 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002944/0.7137, allocations: 1.401 MB / 0.8677 GB, free: 3.691 MB / 0.6231 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.000431/0.7141, allocations: 275.8 kB / 0.8679 GB, free: 3.402 MB / 0.6231 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001777/0.7143, allocations: 27.92 kB / 0.868 GB, free: 3.375 MB / 0.6231 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004476/0.7147, allocations: 35.97 kB / 0.868 GB, free: 3.34 MB / 0.6231 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001681/0.7149, allocations: 68.45 kB / 0.8681 GB, free: 3.273 MB / 0.6231 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.306e-05/0.715, allocations: 20 kB / 0.8681 GB, free: 3.254 MB / 0.6231 GB
Notification: Performance of sorting global known variables: time 0.002145/0.7171, allocations: 1.635 MB / 0.8697 GB, free: 1.625 MB / 0.6231 GB
Notification: Performance of sort global known variables: time 1.8e-07/0.7171, allocations: 0 / 0.8697 GB, free: 1.625 MB / 0.6231 GB
Notification: Performance of remove unused functions: time 0.0009494/0.7181, allocations: 267.6 kB / 0.8699 GB, free: 1.363 MB / 0.6231 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 5 (thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[1].T,conHeaCoo.I.y,assEqu.diff,mean.x)
 * Number of discrete variables: 15 ($whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,intGai.nextTimeEvent,intGai.nextTimeEventScaled,reference.nextTimeEvent,reference.nextTimeEventScaled,setTemp.nextTimeEvent,setTemp.nextTimeEventScaled,assEqu.satisfied,assEqu.nFai,mean.y_last)
 * Number of discrete states: 9 (intGai.nextTimeEvent,reference.nextTimeEvent,setTemp.nextTimeEvent,mean.x,assEqu.satisfied,assEqu.nFai,setTemp.nextTimeEventScaled,reference.nextTimeEventScaled,intGai.nextTimeEventScaled)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (39):
 * Single equations (assignments): 29
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 8
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(1,3,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(2,22)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.004837/0.7229, allocations: 2.342 MB / 0.8722 GB, free: 15.18 MB / 0.6387 GB
Notification: Performance of simCode: created initialization part: time 0.002083/0.725, allocations: 0.9133 MB / 0.8731 GB, free: 14.25 MB / 0.6387 GB
Notification: Performance of simCode: created event and clocks part: time 3.016e-06/0.725, allocations: 0 / 0.8731 GB, free: 14.25 MB / 0.6387 GB
Notification: Performance of simCode: created simulation system equations: time 0.001242/0.7263, allocations: 0.6711 MB / 0.8738 GB, free: 13.56 MB / 0.6387 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001412/0.7277, allocations: 281.7 kB / 0.874 GB, free: 13.29 MB / 0.6387 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01823/0.746, allocations: 11.03 MB / 0.8848 GB, free: 1.98 MB / 0.6387 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001181/0.7472, allocations: 1.318 MB / 0.8861 GB, free: 0.6367 MB / 0.6387 GB
Notification: Performance of simCode: alias equations: time 0.0004106/0.7476, allocations: 118.4 kB / 0.8862 GB, free: 0.5156 MB / 0.6387 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006885/0.7483, allocations: 0.5384 MB / 0.8867 GB, free: 15.97 MB / 0.6544 GB
Notification: Performance of SimCode: time 4.41e-07/0.7483, allocations: 3.938 kB / 0.8867 GB, free: 15.97 MB / 0.6544 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07299/0.8213, allocations: 29.2 MB / 0.9153 GB, free: 3.117 MB / 0.67 GB
Notification: Performance of buildModelFMU: Generate platform static: time 14.36/15.18, allocations: 11.06 kB / 0.9153 GB, free: 3.109 MB / 0.67 GB
(rm -f IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.pipe ; mkfifo IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.pipe >> ../files/IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.sim & python3 -m fmpy simulate  --output-file IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7_res.csv --start-time 0 --stop-time 5.184e+06 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 60 IBPSA_latest_IBPSA_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase7.fmu > IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase7.pipe 2>&1)