Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Annex60 1.0.0/package.mo", uses=false) Using package Annex60 with version 1.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Annex60 1.0.0/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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: translateModel(Annex60.Fluid.Movers.Validation.PumpCurveConstruction,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction") translateModel(Annex60.Fluid.Movers.Validation.PumpCurveConstruction,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001508/0.001508, allocations: 115.3 kB / 15.34 MB, free: 0.5156 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002465/0.002465, allocations: 191.1 kB / 16.25 MB, free: 6.637 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.571/1.571, allocations: 205.1 MB / 222.1 MB, free: 4.691 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Annex60 1.0.0/package.mo): time 0.4018/0.4018, allocations: 54.93 MB / 324.4 MB, free: 120 kB / 254.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Annex60 requested package Modelica of version 3.2.2. Modelica 3.2.3 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.00136/0.00136, allocations: 75.89 kB / 394.9 MB, free: 12.17 MB / 334.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1398/0.1411, allocations: 59.58 MB / 454.4 MB, free: 0.5234 MB / 382.1 MB Notification: Performance of NFInst.instantiate(Annex60.Fluid.Movers.Validation.PumpCurveConstruction): time 0.2873/0.4285, allocations: 101.6 MB / 0.543 GB, free: 0.7812 MB / 414.1 MB Notification: Performance of NFInst.instExpressions: time 0.06109/0.4897, allocations: 35.04 MB / 0.5772 GB, free: 15.39 MB / 462.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.009303/0.499, allocations: 143 kB / 0.5774 GB, free: 15.25 MB / 462.1 MB Notification: Performance of NFTyping.typeComponents: time 0.007479/0.5066, allocations: 1.722 MB / 0.5791 GB, free: 13.52 MB / 462.1 MB Notification: Performance of NFTyping.typeBindings: time 0.01735/0.524, allocations: 4.496 MB / 0.5834 GB, free: 9.004 MB / 462.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.01082/0.5348, allocations: 3.185 MB / 0.5866 GB, free: 5.848 MB / 462.1 MB Notification: Performance of NFFlatten.flatten: time 0.01556/0.5504, allocations: 9.176 MB / 0.5955 GB, free: 12.65 MB / 478.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.00807/0.5585, allocations: 3.363 MB / 0.5988 GB, free: 9.246 MB / 478.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.01091/0.5695, allocations: 3.668 MB / 0.6024 GB, free: 5.578 MB / 478.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.006463/0.576, allocations: 3.097 MB / 0.6054 GB, free: 2.469 MB / 478.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001925/0.5779, allocations: 380 kB / 0.6058 GB, free: 2.098 MB / 478.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.006912/0.5849, allocations: 2.426 MB / 0.6081 GB, free: 15.67 MB / 494.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002198/0.5871, allocations: 1.23 MB / 0.6093 GB, free: 14.43 MB / 494.1 MB Notification: Performance of NFVerifyModel.verify: time 0.00486/0.592, allocations: 2.188 MB / 0.6115 GB, free: 12.23 MB / 494.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01129/0.6033, allocations: 6.594 MB / 0.6179 GB, free: 5.621 MB / 494.1 MB Notification: Performance of FrontEnd - DAE generated: time 8.285e-06/0.6033, allocations: 4 kB / 0.6179 GB, free: 5.617 MB / 494.1 MB Notification: Performance of FrontEnd: time 1.873e-06/0.6033, allocations: 0 / 0.6179 GB, free: 5.617 MB / 494.1 MB Notification: Performance of Transformations before backend: time 0.0001958/0.6035, allocations: 0 / 0.6179 GB, free: 5.617 MB / 494.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 516 * Number of variables: 516 Notification: Performance of Generate backend data structure: time 0.009855/0.6134, allocations: 4.663 MB / 0.6225 GB, free: 0.8789 MB / 494.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.79e-05/0.6135, allocations: 8.031 kB / 0.6225 GB, free: 0.8711 MB / 494.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006283/0.6198, allocations: 1.159 MB / 0.6236 GB, free: 15.7 MB / 0.4981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009386/0.6292, allocations: 3.851 MB / 0.6274 GB, free: 11.8 MB / 0.4981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000217/0.6294, allocations: 176.7 kB / 0.6275 GB, free: 11.62 MB / 0.4981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006038/0.63, allocations: 224 kB / 0.6278 GB, free: 11.4 MB / 0.4981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.006136/0.6362, allocations: 2.735 MB / 0.6304 GB, free: 8.527 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.832e-05/0.6363, allocations: 4 kB / 0.6304 GB, free: 8.523 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002199/0.6365, allocations: 87.94 kB / 0.6305 GB, free: 8.438 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.261e-05/0.6365, allocations: 52 kB / 0.6306 GB, free: 8.387 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005427/0.642, allocations: 2.064 MB / 0.6326 GB, free: 6.32 MB / 0.4981 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 0.2513/0.8933, allocations: 12.35 MB / 0.6446 GB, free: 148.5 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004235/0.8976, allocations: 1.7 MB / 0.6463 GB, free: 148.4 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001429/0.899, allocations: 0.6917 MB / 0.647 GB, free: 148.4 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.005555/0.9046, allocations: 3.301 MB / 0.6502 GB, free: 146.8 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.364e-05/0.9047, allocations: 50.94 kB / 0.6502 GB, free: 146.8 MB / 0.4981 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001448/0.9061, allocations: 170.8 kB / 0.6504 GB, free: 146.7 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=105): time 4.068e-06/0.9061, allocations: 0.5625 kB / 0.6504 GB, free: 146.7 MB / 0.4981 GB Notification: Performance of matching and sorting (n=105): time 0.01166/0.9178, allocations: 3.427 MB / 0.6538 GB, free: 145.7 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.632e-05/0.9179, allocations: 88.98 kB / 0.6538 GB, free: 145.6 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004277/0.9222, allocations: 3.168 MB / 0.6569 GB, free: 144.4 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 0.0004118/0.9226, allocations: 56.73 kB / 0.657 GB, free: 144.4 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009933/0.9236, allocations: 1.691 MB / 0.6586 GB, free: 143.2 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003781/0.924, allocations: 367.3 kB / 0.659 GB, free: 142.9 MB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005962/0.9246, allocations: 424.1 kB / 0.6594 GB, free: 142.8 MB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 5.256e-05/0.9247, allocations: 309.1 kB / 0.6597 GB, free: 142.5 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002065/0.9267, allocations: 1.058 MB / 0.6607 GB, free: 142.1 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00234/0.9291, allocations: 1.712 MB / 0.6624 GB, free: 141 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004389/0.9335, allocations: 2.689 MB / 0.665 GB, free: 139.6 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.679e-05/0.9335, allocations: 9.281 kB / 0.665 GB, free: 139.6 MB / 0.4981 GB Notification: Performance of matching and sorting (n=228) (initialization): time 0.008542/0.9421, allocations: 3.505 MB / 0.6685 GB, free: 138.4 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 4.272e-05/0.9422, allocations: 12.38 kB / 0.6685 GB, free: 138.4 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.559e-05/0.9422, allocations: 18.19 kB / 0.6685 GB, free: 138.4 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001849/0.9441, allocations: 0.642 MB / 0.6691 GB, free: 138.2 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002142/0.9462, allocations: 423 kB / 0.6695 GB, free: 138.2 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00271/0.949, allocations: 2.743 MB / 0.6722 GB, free: 135.9 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003823/0.9528, allocations: 221.8 kB / 0.6724 GB, free: 135.9 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004976/0.9533, allocations: 136.3 kB / 0.6725 GB, free: 135.9 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.003644/0.957, allocations: 1.464 MB / 0.674 GB, free: 135.2 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002366/0.9594, allocations: 1.506 MB / 0.6754 GB, free: 134.1 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.003817/0.9632, allocations: 2.297 MB / 0.6777 GB, free: 132.8 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.659e-05/0.9633, allocations: 5.438 kB / 0.6777 GB, free: 132.8 MB / 0.4981 GB Notification: Performance of matching and sorting (n=228) (initialization_lambda0): time 0.007345/0.9706, allocations: 3.02 MB / 0.6806 GB, free: 131.8 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 3.516e-05/0.9707, allocations: 17.72 kB / 0.6806 GB, free: 131.8 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.102e-05/0.9707, allocations: 18.91 kB / 0.6807 GB, free: 131.8 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002525/0.9733, allocations: 0.661 MB / 0.6813 GB, free: 131.6 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001766/0.9751, allocations: 397.2 kB / 0.6817 GB, free: 131.6 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01593/0.991, allocations: 11.79 MB / 0.6932 GB, free: 123.2 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003218/0.9943, allocations: 186.3 kB / 0.6934 GB, free: 123.2 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004468/0.9947, allocations: 121.5 kB / 0.6935 GB, free: 123.1 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 82 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (200): * Single equations (assignments): 192 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * 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): 4 systems {(1,4), (1,4), (1,4), (1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.0007176/0.9955, allocations: 297 kB / 0.6938 GB, free: 122.9 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008972/0.9964, allocations: 338.3 kB / 0.6941 GB, free: 122.7 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.008608/1.005, allocations: 2.728 MB / 0.6968 GB, free: 121.8 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.957e-05/1.005, allocations: 21.06 kB / 0.6968 GB, free: 121.8 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.185e-06/1.005, allocations: 0 / 0.6968 GB, free: 121.8 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.182e-05/1.005, allocations: 8.531 kB / 0.6968 GB, free: 121.8 MB / 0.4981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005106/1.01, allocations: 2.231 MB / 0.699 GB, free: 120.9 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.321e-05/1.01, allocations: 3.844 kB / 0.699 GB, free: 120.9 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001302/1.012, allocations: 235.8 kB / 0.6992 GB, free: 120.9 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001393/1.013, allocations: 452.4 kB / 0.6996 GB, free: 120.7 MB / 0.4981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001588/1.013, allocations: 42.62 kB / 0.6997 GB, free: 120.7 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001959/1.015, allocations: 2.666 MB / 0.7023 GB, free: 118.4 MB / 0.4981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.265e-06/1.015, allocations: 0 / 0.7023 GB, free: 118.4 MB / 0.4981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007547/1.023, allocations: 2.487 MB / 0.7047 GB, free: 117.5 MB / 0.4981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001984/1.025, allocations: 0.5336 MB / 0.7052 GB, free: 117.1 MB / 0.4981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0006671/1.025, allocations: 22.56 kB / 0.7053 GB, free: 117.1 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002082/1.027, allocations: 190.3 kB / 0.7054 GB, free: 117 MB / 0.4981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002318/1.028, allocations: 74.69 kB / 0.7055 GB, free: 117 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001437/1.028, allocations: 61.17 kB / 0.7056 GB, free: 117 MB / 0.4981 GB Notification: Performance of sorting global known variables: time 0.003665/1.032, allocations: 2.159 MB / 0.7077 GB, free: 116.2 MB / 0.4981 GB Notification: Performance of sort global known variables: time 3.21e-07/1.032, allocations: 0 / 0.7077 GB, free: 116.2 MB / 0.4981 GB Notification: Performance of remove unused functions: time 0.007964/1.04, allocations: 1.648 MB / 0.7093 GB, free: 115.4 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (105): * Single equations (assignments): 97 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * 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): 4 systems {(1,5), (1,5), (1,5), (1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001914/1.042, allocations: 0.629 MB / 0.7099 GB, free: 114.9 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.01095/1.052, allocations: 4.269 MB / 0.7141 GB, free: 111.2 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 9.177e-06/1.053, allocations: 2.625 kB / 0.7141 GB, free: 111.2 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.002219/1.055, allocations: 0.8679 MB / 0.7149 GB, free: 110.5 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007869/1.063, allocations: 1.66 MB / 0.7165 GB, free: 109 MB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01641/1.079, allocations: 7.6 MB / 0.724 GB, free: 101.4 MB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001677/1.081, allocations: 2.133 MB / 0.726 GB, free: 99.28 MB / 0.4981 GB Notification: Performance of simCode: alias equations: time 0.004358/1.085, allocations: 0.809 MB / 0.7268 GB, free: 98.46 MB / 0.4981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00073/1.086, allocations: 267.3 kB / 0.7271 GB, free: 98.21 MB / 0.4981 GB Notification: Performance of SimCode: time 1.353e-06/1.086, allocations: 0 / 0.7271 GB, free: 98.21 MB / 0.4981 GB Notification: Performance of Templates: time 0.1108/1.197, allocations: 75.77 MB / 0.8011 GB, free: 22.76 MB / 0.4981 GB make -j1 -f Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction.makefile (rm -f Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction.pipe ; mkfifo Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction.pipe ; head -c 1048576 < Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction.pipe >> ../files/Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction.sim & ./Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction -abortSlowSimulation -alarm=480 -lv LOG_STATS > Annex60_1.0.0_Annex60.Fluid.Movers.Validation.PumpCurveConstruction.pipe 2>&1)