Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.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/IDEAS 3.0.0-master/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-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(IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X",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 0.005476/0.005476, allocations: 95.77 kB / 15.73 MB, free: 6.039 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001154/0.001154, allocations: 198.6 kB / 16.68 MB, free: 5.969 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.296/1.296, allocations: 222.9 MB / 240.4 MB, free: 4.316 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.898/0.898, allocations: 135.1 MB / 425.7 MB, free: 11.91 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001258/0.001258, allocations: 59.91 kB / 0.5851 GB, free: 3.895 MB / 494.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3573/0.3586, allocations: 80.91 MB / 0.6641 GB, free: 7.289 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X): time 0.1788/0.5374, allocations: 180.3 MB / 0.8402 GB, free: 12.66 MB / 0.67 GB Notification: Performance of NFInst.instExpressions: time 0.006124/0.5436, allocations: 3.734 MB / 0.8439 GB, free: 8.91 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008774/0.5445, allocations: 27.81 kB / 0.8439 GB, free: 8.883 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.001253/0.5458, allocations: 449.5 kB / 0.8443 GB, free: 8.441 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.003207/0.549, allocations: 1.295 MB / 0.8456 GB, free: 7.141 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.002076/0.5511, allocations: 0.7484 MB / 0.8463 GB, free: 6.395 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.001697/0.5528, allocations: 1.352 MB / 0.8476 GB, free: 5.039 MB / 0.67 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000614/0.5535, allocations: 478.6 kB / 0.8481 GB, free: 4.57 MB / 0.67 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002271/0.5558, allocations: 1.026 MB / 0.8491 GB, free: 3.551 MB / 0.67 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0006098/0.5564, allocations: 466.1 kB / 0.8495 GB, free: 3.094 MB / 0.67 GB Notification: Performance of NFPackage.collectConstants: time 6.64e-05/0.5565, allocations: 40 kB / 0.8496 GB, free: 3.055 MB / 0.67 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001952/0.5584, allocations: 1.197 MB / 0.8508 GB, free: 1.855 MB / 0.67 GB Notification: Performance of NFScalarize.scalarize: time 0.0001968/0.5586, allocations: 187.4 kB / 0.8509 GB, free: 1.672 MB / 0.67 GB Notification: Performance of NFVerifyModel.verify: time 0.0003238/0.559, allocations: 326.3 kB / 0.8512 GB, free: 1.352 MB / 0.67 GB Notification: Performance of NFConvertDAE.convert: time 0.001819/0.5608, allocations: 1.203 MB / 0.8524 GB, free: 148 kB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 5.32e-06/0.5608, allocations: 4 kB / 0.8524 GB, free: 144 kB / 0.67 GB Notification: Performance of FrontEnd: time 1.523e-06/0.5608, allocations: 7.875 kB / 0.8524 GB, free: 136 kB / 0.67 GB Notification: Performance of Transformations before backend: time 1.148e-05/0.5608, allocations: 0 / 0.8524 GB, free: 136 kB / 0.67 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 97 * Number of variables: 97 Notification: Performance of Generate backend data structure: time 0.002/0.5628, allocations: 1.066 MB / 0.8535 GB, free: 15.01 MB / 0.6856 GB Notification: Performance of prepare preOptimizeDAE: time 3.634e-05/0.5629, allocations: 12.03 kB / 0.8535 GB, free: 15 MB / 0.6856 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.356e-05/0.563, allocations: 78.52 kB / 0.8536 GB, free: 14.91 MB / 0.6856 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001307/0.5643, allocations: 231.2 kB / 0.8538 GB, free: 14.68 MB / 0.6856 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.000867/0.5652, allocations: 0.566 MB / 0.8543 GB, free: 14.08 MB / 0.6856 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.191e-05/0.5652, allocations: 32.98 kB / 0.8544 GB, free: 14.05 MB / 0.6856 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.827e-05/0.5653, allocations: 40 kB / 0.8544 GB, free: 14.01 MB / 0.6856 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001006/0.5663, allocations: 0.5348 MB / 0.8549 GB, free: 13.46 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.341e-05/0.5663, allocations: 0 / 0.8549 GB, free: 13.46 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.905e-05/0.5664, allocations: 16 kB / 0.8549 GB, free: 13.45 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.045e-05/0.5664, allocations: 28.92 kB / 0.855 GB, free: 13.41 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001117/0.5675, allocations: 0.4996 MB / 0.8555 GB, free: 12.92 MB / 0.6856 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 0.003041/0.5706, allocations: 2.219 MB / 0.8576 GB, free: 10.51 MB / 0.6856 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007008/0.5713, allocations: 339.8 kB / 0.8579 GB, free: 10.15 MB / 0.6856 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002183/0.5715, allocations: 154.2 kB / 0.8581 GB, free: 9.996 MB / 0.6856 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00128/0.5728, allocations: 0.8376 MB / 0.8589 GB, free: 8.992 MB / 0.6856 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003116/0.5732, allocations: 189 kB / 0.8591 GB, free: 8.789 MB / 0.6856 GB Notification: Performance of pre-optimization done (n=26): time 2.485e-06/0.5732, allocations: 0 / 0.8591 GB, free: 8.789 MB / 0.6856 GB Notification: Performance of matching and sorting (n=26): time 0.001019/0.5742, allocations: 434.5 kB / 0.8595 GB, free: 8.359 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.236e-05/0.5743, allocations: 85.09 kB / 0.8596 GB, free: 8.258 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0008461/0.5751, allocations: 0.6602 MB / 0.8602 GB, free: 7.586 MB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 3.503e-05/0.5752, allocations: 33.7 kB / 0.8603 GB, free: 7.547 MB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002345/0.5754, allocations: 324.2 kB / 0.8606 GB, free: 7.227 MB / 0.6856 GB Notification: Performance of collectInitialBindings (initialization): time 7.34e-05/0.5755, allocations: 91.22 kB / 0.8607 GB, free: 7.137 MB / 0.6856 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001275/0.5756, allocations: 77.64 kB / 0.8607 GB, free: 7.055 MB / 0.6856 GB Notification: Performance of setup shared object (initialization): time 0.0001326/0.5757, allocations: 374.8 kB / 0.8611 GB, free: 6.68 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003572/0.5761, allocations: 136.8 kB / 0.8612 GB, free: 6.543 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004316/0.5766, allocations: 273 kB / 0.8615 GB, free: 6.215 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000599/0.5772, allocations: 385.2 kB / 0.8618 GB, free: 5.785 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.761e-06/0.5772, allocations: 4 kB / 0.8619 GB, free: 5.781 MB / 0.6856 GB Notification: Performance of matching and sorting (n=43) (initialization): time 0.0009883/0.5782, allocations: 474.7 kB / 0.8623 GB, free: 5.312 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 1.971e-05/0.5782, allocations: 8 kB / 0.8623 GB, free: 5.305 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.137e-05/0.5782, allocations: 11.92 kB / 0.8623 GB, free: 5.293 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.09e-05/0.5782, allocations: 7.938 kB / 0.8623 GB, free: 5.285 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004112/0.5787, allocations: 91.98 kB / 0.8624 GB, free: 5.195 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.137e-05/0.5787, allocations: 11.94 kB / 0.8624 GB, free: 5.184 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005795/0.5793, allocations: 75.62 kB / 0.8625 GB, free: 5.109 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.478e-05/0.5793, allocations: 20 kB / 0.8625 GB, free: 5.09 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005047/0.5798, allocations: 299.5 kB / 0.8628 GB, free: 4.797 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004354/0.5803, allocations: 286.8 kB / 0.8631 GB, free: 4.457 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0005892/0.5809, allocations: 382.8 kB / 0.8634 GB, free: 4.031 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.565e-06/0.5809, allocations: 0 / 0.8634 GB, free: 4.031 MB / 0.6856 GB Notification: Performance of matching and sorting (n=43) (initialization_lambda0): time 0.0009499/0.5819, allocations: 477 kB / 0.8639 GB, free: 3.559 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 9.958e-06/0.5819, allocations: 8 kB / 0.8639 GB, free: 3.551 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.084e-06/0.5819, allocations: 7.938 kB / 0.8639 GB, free: 3.543 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 8.246e-06/0.5819, allocations: 11.94 kB / 0.8639 GB, free: 3.531 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003901/0.5823, allocations: 83.89 kB / 0.864 GB, free: 3.449 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.596e-06/0.5823, allocations: 12.14 kB / 0.864 GB, free: 3.438 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000554/0.5829, allocations: 63.92 kB / 0.8641 GB, free: 3.375 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.452e-05/0.5829, allocations: 20 kB / 0.8641 GB, free: 3.355 MB / 0.6856 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * Number of states: 0 () * Number of discrete variables: 5 ($PRE.XSet.nextTimeEvent,$whenCondition1,XSet.nextTimeEventScaled,$PRE.XSet.nextTimeEventScaled,XSet.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (43): * Single equations (assignments): 43 * 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 0.0001453/0.5831, allocations: 216.1 kB / 0.8643 GB, free: 3.137 MB / 0.6856 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.399e-05/0.5832, allocations: 63.56 kB / 0.8644 GB, free: 3.074 MB / 0.6856 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005714/0.5837, allocations: 319.7 kB / 0.8647 GB, free: 2.75 MB / 0.6856 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.049e-06/0.5838, allocations: 0 / 0.8647 GB, free: 2.75 MB / 0.6856 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.913e-06/0.5838, allocations: 7.938 kB / 0.8647 GB, free: 2.742 MB / 0.6856 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.41e-06/0.5838, allocations: 3.984 kB / 0.8647 GB, free: 2.738 MB / 0.6856 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001425/0.5852, allocations: 1.084 MB / 0.8657 GB, free: 1.566 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.609e-06/0.5852, allocations: 4 kB / 0.8657 GB, free: 1.562 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001868/0.5854, allocations: 35.92 kB / 0.8658 GB, free: 1.527 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (simulation): time 7.023e-06/0.5854, allocations: 4 kB / 0.8658 GB, free: 1.523 MB / 0.6856 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.192e-05/0.5855, allocations: 11.98 kB / 0.8658 GB, free: 1.512 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.579e-06/0.5855, allocations: 4 kB / 0.8658 GB, free: 1.508 MB / 0.6856 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.479e-06/0.5855, allocations: 7.938 kB / 0.8658 GB, free: 1.5 MB / 0.6856 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005299/0.586, allocations: 475.6 kB / 0.8663 GB, free: 0.9883 MB / 0.6856 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001832/0.5862, allocations: 160.6 kB / 0.8664 GB, free: 0.8125 MB / 0.6856 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.335e-05/0.5863, allocations: 15.92 kB / 0.8664 GB, free: 0.7969 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003349/0.5866, allocations: 23.92 kB / 0.8664 GB, free: 0.7734 MB / 0.6856 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.926e-05/0.5867, allocations: 19.92 kB / 0.8665 GB, free: 0.7539 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.112e-05/0.5867, allocations: 16 kB / 0.8665 GB, free: 0.7383 MB / 0.6856 GB Notification: Performance of sorting global known variables: time 0.0006073/0.5873, allocations: 475 kB / 0.8669 GB, free: 284 kB / 0.6856 GB Notification: Performance of sort global known variables: time 2.01e-07/0.5873, allocations: 0 / 0.8669 GB, free: 284 kB / 0.6856 GB Notification: Performance of remove unused functions: time 0.0008721/0.5882, allocations: 271.5 kB / 0.8672 GB, free: 12 kB / 0.6856 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of discrete states: 2 (XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (25): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 0.2976/0.8859, allocations: 1.411 MB / 0.8686 GB, free: 192.6 MB / 0.6856 GB Notification: Performance of simCode: created initialization part: time 0.001208/0.8871, allocations: 0.5041 MB / 0.8691 GB, free: 192.6 MB / 0.6856 GB Notification: Performance of simCode: created event and clocks part: time 3.467e-06/0.8871, allocations: 0.75 kB / 0.8691 GB, free: 192.6 MB / 0.6856 GB Notification: Performance of simCode: created simulation system equations: time 0.0002112/0.8873, allocations: 132.2 kB / 0.8692 GB, free: 192.6 MB / 0.6856 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001381/0.8887, allocations: 274.7 kB / 0.8695 GB, free: 192.6 MB / 0.6856 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006776/0.8955, allocations: 4.662 MB / 0.874 GB, free: 189.9 MB / 0.6856 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000371/0.8959, allocations: 0.8953 MB / 0.8749 GB, free: 189.2 MB / 0.6856 GB Notification: Performance of simCode: alias equations: time 0.0006974/0.8966, allocations: 174.6 kB / 0.875 GB, free: 189.2 MB / 0.6856 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002846/0.8969, allocations: 201.3 kB / 0.8752 GB, free: 189 MB / 0.6856 GB Notification: Performance of SimCode: time 7.81e-07/0.8969, allocations: 0 / 0.8752 GB, free: 189 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03433/0.9312, allocations: 15.79 MB / 0.8907 GB, free: 182.1 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate platform static: time 8.431/9.362, allocations: 1.719 kB / 0.8907 GB, free: 182.1 MB / 0.6856 GB (rm -f IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.sim & python3 -m fmpy simulate --output-file IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X_res.csv --start-time 0 --stop-time 1080 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.432 IDEAS_dev_IDEAS_Fluid_Humidifiers_Validation_SprayAirWasher_X.fmu > IDEAS_dev_IDEAS.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe 2>&1)