Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom.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 11.1.0-maint.11.x/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.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: "" <> buildModelFMU(Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom,fileNamePrefix="Buildings_11_Buildings_HeatTransfer_Windows_Examples_BeamDepthInRoom",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom,fileNamePrefix="Buildings_11_Buildings_HeatTransfer_Windows_Examples_BeamDepthInRoom",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 0.008285/0.008285, allocations: 100 kB / 15.73 MB, free: 6.008 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001967/0.001967, allocations: 193.2 kB / 16.67 MB, free: 5.926 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.408/1.408, allocations: 222.9 MB / 240.4 MB, free: 15.08 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.726/2.726, allocations: 469.8 MB / 0.7425 GB, free: 3.32 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.001879/0.001879, allocations: 67.89 kB / 1.065 GB, free: 14.1 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6935/0.6953, allocations: 159.1 MB / 1.22 GB, free: 2.086 MB / 0.9356 GB Notification: Performance of NFInst.instantiate(Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom): time 0.006811/0.7022, allocations: 5.264 MB / 1.225 GB, free: 12.8 MB / 0.9512 GB Notification: Performance of NFInst.instExpressions: time 0.004548/0.7068, allocations: 3.002 MB / 1.228 GB, free: 9.785 MB / 0.9512 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003075/0.7071, allocations: 12 kB / 1.228 GB, free: 9.773 MB / 0.9512 GB Notification: Performance of NFTyping.typeComponents: time 0.0002299/0.7073, allocations: 126.4 kB / 1.228 GB, free: 9.648 MB / 0.9512 GB Notification: Performance of NFTyping.typeBindings: time 0.001541/0.7089, allocations: 0.6198 MB / 1.229 GB, free: 9.031 MB / 0.9512 GB Notification: Performance of NFTyping.typeClassSections: time 0.0008036/0.7097, allocations: 0.5578 MB / 1.229 GB, free: 8.473 MB / 0.9512 GB Notification: Performance of NFFlatten.flatten: time 0.001734/0.7114, allocations: 1.751 MB / 1.231 GB, free: 6.715 MB / 0.9512 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007107/0.7121, allocations: 0.5161 MB / 1.232 GB, free: 6.176 MB / 0.9512 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0007382/0.7129, allocations: 0.6539 MB / 1.232 GB, free: 5.52 MB / 0.9512 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0009805/0.7139, allocations: 0.7352 MB / 1.233 GB, free: 4.781 MB / 0.9512 GB Notification: Performance of NFPackage.collectConstants: time 0.0002514/0.7141, allocations: 192 kB / 1.233 GB, free: 4.594 MB / 0.9512 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0006278/0.7148, allocations: 375.8 kB / 1.234 GB, free: 4.227 MB / 0.9512 GB Notification: Performance of NFScalarize.scalarize: time 0.000341/0.7151, allocations: 382.8 kB / 1.234 GB, free: 3.852 MB / 0.9512 GB Notification: Performance of NFVerifyModel.verify: time 0.0007013/0.7158, allocations: 0.7349 MB / 1.235 GB, free: 3.113 MB / 0.9512 GB Notification: Performance of NFConvertDAE.convert: time 0.002121/0.718, allocations: 2.078 MB / 1.237 GB, free: 1.031 MB / 0.9512 GB Notification: Performance of FrontEnd - DAE generated: time 4.609e-06/0.718, allocations: 0 / 1.237 GB, free: 1.031 MB / 0.9512 GB Notification: Performance of FrontEnd: time 1.383e-06/0.718, allocations: 0 / 1.237 GB, free: 1.031 MB / 0.9512 GB Notification: Performance of Transformations before backend: time 1.491e-05/0.718, allocations: 0 / 1.237 GB, free: 1.031 MB / 0.9512 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 236 * Number of variables: 236 Notification: Performance of Generate backend data structure: time 0.00379/0.7218, allocations: 1.687 MB / 1.238 GB, free: 15.28 MB / 0.9669 GB Notification: Performance of prepare preOptimizeDAE: time 3.767e-05/0.7218, allocations: 12.03 kB / 1.238 GB, free: 15.27 MB / 0.9669 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001865/0.722, allocations: 140 kB / 1.238 GB, free: 15.12 MB / 0.9669 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002642/0.7223, allocations: 140.1 kB / 1.239 GB, free: 14.99 MB / 0.9669 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001328/0.7236, allocations: 0.822 MB / 1.239 GB, free: 14.12 MB / 0.9669 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.352e-05/0.7237, allocations: 74.38 kB / 1.24 GB, free: 14.05 MB / 0.9669 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001387/0.7239, allocations: 95.94 kB / 1.24 GB, free: 13.96 MB / 0.9669 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001975/0.7259, allocations: 1.057 MB / 1.241 GB, free: 12.88 MB / 0.9669 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.207e-05/0.7259, allocations: 0 / 1.241 GB, free: 12.88 MB / 0.9669 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001015/0.726, allocations: 39.98 kB / 1.241 GB, free: 12.84 MB / 0.9669 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.231e-05/0.726, allocations: 24 kB / 1.241 GB, free: 12.82 MB / 0.9669 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001842/0.7279, allocations: 0.856 MB / 1.242 GB, free: 11.96 MB / 0.9669 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005406/0.7333, allocations: 3.202 MB / 1.245 GB, free: 8.695 MB / 0.9669 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004676/0.738, allocations: 1.447 MB / 1.246 GB, free: 7.223 MB / 0.9669 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009581/0.739, allocations: 491.2 kB / 1.247 GB, free: 6.73 MB / 0.9669 GB Notification: Performance of preOpt evalFunc (simulation): time 8.346e-05/0.7391, allocations: 31.95 kB / 1.247 GB, free: 6.699 MB / 0.9669 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001357/0.7404, allocations: 0.7545 MB / 1.247 GB, free: 5.922 MB / 0.9669 GB Notification: Performance of pre-optimization done (n=116): time 5.921e-06/0.7404, allocations: 4 kB / 1.247 GB, free: 5.918 MB / 0.9669 GB Notification: Performance of matching and sorting (n=116): time 0.003255/0.7437, allocations: 1.508 MB / 1.249 GB, free: 4.406 MB / 0.9669 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.00011/0.7438, allocations: 152.4 kB / 1.249 GB, free: 4.227 MB / 0.9669 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001075/0.7449, allocations: 0.7901 MB / 1.25 GB, free: 3.422 MB / 0.9669 GB Notification: Performance of collectPreVariables (initialization): time 8.242e-05/0.745, allocations: 53.7 kB / 1.25 GB, free: 3.363 MB / 0.9669 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003643/0.7454, allocations: 425.5 kB / 1.25 GB, free: 2.941 MB / 0.9669 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003299/0.7457, allocations: 376.8 kB / 1.251 GB, free: 2.57 MB / 0.9669 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003505/0.7461, allocations: 206.8 kB / 1.251 GB, free: 2.359 MB / 0.9669 GB Notification: Performance of setup shared object (initialization): time 0.0001772/0.7462, allocations: 349.9 kB / 1.251 GB, free: 2.012 MB / 0.9669 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008576/0.7471, allocations: 394.5 kB / 1.251 GB, free: 1.629 MB / 0.9669 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009874/0.7481, allocations: 0.5237 MB / 1.252 GB, free: 1.062 MB / 0.9669 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001738/0.7498, allocations: 0.8488 MB / 1.253 GB, free: 196 kB / 0.9669 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.667e-06/0.7499, allocations: 3.938 kB / 1.253 GB, free: 192 kB / 0.9669 GB Notification: Performance of matching and sorting (n=136) (initialization): time 0.002293/0.7522, allocations: 1.103 MB / 1.254 GB, free: 15.07 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 1.717e-05/0.7522, allocations: 8 kB / 1.254 GB, free: 15.07 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.563e-06/0.7522, allocations: 3.938 kB / 1.254 GB, free: 15.06 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.016e-05/0.7522, allocations: 8 kB / 1.254 GB, free: 15.05 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001072/0.7533, allocations: 231.6 kB / 1.254 GB, free: 14.83 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.457e-05/0.7533, allocations: 12 kB / 1.254 GB, free: 14.82 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001014/0.7544, allocations: 143.3 kB / 1.254 GB, free: 14.68 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001024/0.7545, allocations: 47.95 kB / 1.254 GB, free: 14.63 MB / 0.9825 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 40 (winEas.proShaLen.solAzi.outsidePolarCircle,winEas.proShaLen.decAng.tNext,$PRE.winEas.proShaLen.decAng.tNext,winEas.proShaLen.eqnTim.tNext,$PRE.winEas.proShaLen.eqnTim.tNext,winEas.proShaLen.locTim.tNext,$PRE.winEas.proShaLen.locTim.tNext,$whenCondition10,$whenCondition11,$whenCondition12,winSou.proShaLen.solAzi.outsidePolarCircle,winSou.proShaLen.decAng.tNext,$PRE.winSou.proShaLen.decAng.tNext,winSou.proShaLen.eqnTim.tNext,$PRE.winSou.proShaLen.eqnTim.tNext,winSou.proShaLen.locTim.tNext,$PRE.winSou.proShaLen.locTim.tNext,$whenCondition7,$whenCondition8,$whenCondition9,winWes.proShaLen.solAzi.outsidePolarCircle,winWes.proShaLen.decAng.tNext,$PRE.winWes.proShaLen.decAng.tNext,winWes.proShaLen.eqnTim.tNext,$PRE.winWes.proShaLen.eqnTim.tNext,winWes.proShaLen.locTim.tNext,$PRE.winWes.proShaLen.locTim.tNext,$whenCondition4,$whenCondition5,$whenCondition6,winNor.proShaLen.solAzi.outsidePolarCircle,winNor.proShaLen.decAng.tNext,$PRE.winNor.proShaLen.decAng.tNext,winNor.proShaLen.eqnTim.tNext,$PRE.winNor.proShaLen.eqnTim.tNext,winNor.proShaLen.locTim.tNext,$PRE.winNor.proShaLen.locTim.tNext,$whenCondition1,$whenCondition2,$whenCondition3) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (136): * Single equations (assignments): 136 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0004435/0.7549, allocations: 298.9 kB / 1.255 GB, free: 14.33 MB / 0.9825 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002018/0.7551, allocations: 115.3 kB / 1.255 GB, free: 14.21 MB / 0.9825 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003194/0.7583, allocations: 1.525 MB / 1.256 GB, free: 12.68 MB / 0.9825 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.819e-05/0.7584, allocations: 19.94 kB / 1.256 GB, free: 12.66 MB / 0.9825 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.122e-06/0.7584, allocations: 0 / 1.256 GB, free: 12.66 MB / 0.9825 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.659e-05/0.7584, allocations: 7.969 kB / 1.256 GB, free: 12.65 MB / 0.9825 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001557/0.7599, allocations: 1.335 MB / 1.257 GB, free: 11.27 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.518e-06/0.76, allocations: 0 / 1.257 GB, free: 11.27 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009825/0.761, allocations: 235.6 kB / 1.258 GB, free: 11.04 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.217e-06/0.761, allocations: 4 kB / 1.258 GB, free: 11.04 MB / 0.9825 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.582e-05/0.7611, allocations: 43.95 kB / 1.258 GB, free: 10.99 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.457e-05/0.7611, allocations: 11.94 kB / 1.258 GB, free: 10.98 MB / 0.9825 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.122e-06/0.7611, allocations: 4 kB / 1.258 GB, free: 10.98 MB / 0.9825 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00257/0.7637, allocations: 1.357 MB / 1.259 GB, free: 9.594 MB / 0.9825 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004937/0.7642, allocations: 371.8 kB / 1.259 GB, free: 9.211 MB / 0.9825 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001682/0.7644, allocations: 28 kB / 1.259 GB, free: 9.184 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008383/0.7652, allocations: 79.86 kB / 1.26 GB, free: 9.105 MB / 0.9825 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002247/0.7654, allocations: 115.8 kB / 1.26 GB, free: 8.992 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001149/0.7656, allocations: 55.95 kB / 1.26 GB, free: 8.938 MB / 0.9825 GB Notification: Performance of sorting global known variables: time 0.0008054/0.7664, allocations: 0.5732 MB / 1.26 GB, free: 8.367 MB / 0.9825 GB Notification: Performance of sort global known variables: time 1.8e-07/0.7664, allocations: 0 / 1.26 GB, free: 8.367 MB / 0.9825 GB Notification: Performance of remove unused functions: time 0.0008022/0.7672, allocations: 355.3 kB / 1.261 GB, free: 8.02 MB / 0.9825 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 24 ($whenCondition12,$whenCondition11,$whenCondition10,winEas.proShaLen.locTim.tNext,winEas.proShaLen.eqnTim.tNext,winEas.proShaLen.decAng.tNext,$whenCondition9,$whenCondition8,$whenCondition7,winSou.proShaLen.locTim.tNext,winSou.proShaLen.eqnTim.tNext,winSou.proShaLen.decAng.tNext,$whenCondition6,$whenCondition5,$whenCondition4,winWes.proShaLen.locTim.tNext,winWes.proShaLen.eqnTim.tNext,winWes.proShaLen.decAng.tNext,$whenCondition3,$whenCondition2,$whenCondition1,winNor.proShaLen.locTim.tNext,winNor.proShaLen.eqnTim.tNext,winNor.proShaLen.decAng.tNext) * Number of discrete states: 12 (winNor.proShaLen.locTim.tNext,winNor.proShaLen.eqnTim.tNext,winNor.proShaLen.decAng.tNext,winWes.proShaLen.locTim.tNext,winWes.proShaLen.eqnTim.tNext,winWes.proShaLen.decAng.tNext,winSou.proShaLen.locTim.tNext,winSou.proShaLen.eqnTim.tNext,winSou.proShaLen.decAng.tNext,winEas.proShaLen.locTim.tNext,winEas.proShaLen.eqnTim.tNext,winEas.proShaLen.decAng.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (156): * Single equations (assignments): 144 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 12 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.003546/0.7707, allocations: 2.149 MB / 1.263 GB, free: 5.867 MB / 0.9825 GB Notification: Performance of simCode: created initialization part: time 0.002103/0.7729, allocations: 1.053 MB / 1.264 GB, free: 4.82 MB / 0.9825 GB Notification: Performance of simCode: created event and clocks part: time 1.974e-06/0.7729, allocations: 0 / 1.264 GB, free: 4.82 MB / 0.9825 GB Notification: Performance of simCode: created simulation system equations: time 0.001206/0.7741, allocations: 0.6453 MB / 1.264 GB, free: 4.176 MB / 0.9825 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000516/0.7746, allocations: 107.2 kB / 1.264 GB, free: 4.07 MB / 0.9825 GB Warning: Could not resolve URI (uri) at compile-time; copying all loaded packages into the FMU Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01313/0.7878, allocations: 8.137 MB / 1.272 GB, free: 11.75 MB / 0.9981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007377/0.7885, allocations: 1.085 MB / 1.273 GB, free: 10.64 MB / 0.9981 GB Notification: Performance of simCode: alias equations: time 0.0006438/0.7892, allocations: 192.5 kB / 1.274 GB, free: 10.45 MB / 0.9981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007953/0.79, allocations: 475.2 kB / 1.274 GB, free: 9.98 MB / 0.9981 GB Notification: Performance of SimCode: time 2.91e-07/0.79, allocations: 0 / 1.274 GB, free: 9.98 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.002/1.792, allocations: 21.76 MB / 1.295 GB, free: 4.426 MB / 1.014 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.41/12.2, allocations: 6.562 kB / 1.295 GB, free: 4.422 MB / 1.014 GB (rm -f Buildings_11_Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom.pipe ; mkfifo Buildings_11_Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom.pipe ; head -c 1048576 < Buildings_11_Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom.pipe >> ../files/Buildings_11_Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom.sim & python3 -m fmpy simulate --output-file Buildings_11_Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom_res.csv --start-time 0 --stop-time 86400 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 34.56 Buildings_11_Buildings_HeatTransfer_Windows_Examples_BeamDepthInRoom.fmu > Buildings_11_Buildings.HeatTransfer.Windows.Examples.BeamDepthInRoom.pipe 2>&1)