Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull.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/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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(Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull") translateModel(Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001448/0.001448, allocations: 106.1 kB / 15.98 MB, free: 5.891 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001674/0.001674, allocations: 196.4 kB / 16.91 MB, free: 5.746 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.459/1.459, allocations: 205.1 MB / 222.8 MB, free: 4.691 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.739/1.739, allocations: 292.3 MB / 0.5492 GB, free: 13.63 MB / 462.1 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: Performance of FrontEnd - loaded program: time 0.001489/0.001489, allocations: 69.98 kB / 0.6717 GB, free: 26.41 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2388/0.2403, allocations: 114.6 MB / 0.7835 GB, free: 13.87 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull): time 0.006626/0.247, allocations: 5.49 MB / 0.7889 GB, free: 8.352 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.005993/0.253, allocations: 4.105 MB / 0.7929 GB, free: 4.23 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005686/0.2536, allocations: 15.88 kB / 0.7929 GB, free: 4.215 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.00159/0.2552, allocations: 0.5371 MB / 0.7934 GB, free: 3.676 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.001544/0.2567, allocations: 0.6148 MB / 0.794 GB, free: 3.059 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.001454/0.2582, allocations: 0.5067 MB / 0.7945 GB, free: 2.551 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.001294/0.2595, allocations: 1.15 MB / 0.7957 GB, free: 1.395 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000747/0.2603, allocations: 485.8 kB / 0.7961 GB, free: 0.9141 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0006063/0.2609, allocations: 462.3 kB / 0.7966 GB, free: 472 kB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0007958/0.2617, allocations: 0.5605 MB / 0.7971 GB, free: 15.9 MB / 0.6231 GB Notification: Performance of NFPackage.collectConstants: time 9.675e-05/0.2618, allocations: 64 kB / 0.7972 GB, free: 15.84 MB / 0.6231 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001301/0.2631, allocations: 0.8342 MB / 0.798 GB, free: 15 MB / 0.6231 GB Notification: Performance of NFScalarize.scalarize: time 0.0002927/0.2634, allocations: 339.1 kB / 0.7983 GB, free: 14.67 MB / 0.6231 GB Notification: Performance of NFVerifyModel.verify: time 0.0004415/0.2639, allocations: 425.8 kB / 0.7987 GB, free: 14.25 MB / 0.6231 GB Notification: Performance of NFConvertDAE.convert: time 0.001373/0.2652, allocations: 1.076 MB / 0.7998 GB, free: 13.17 MB / 0.6231 GB Notification: Performance of FrontEnd - DAE generated: time 5.851e-06/0.2653, allocations: 4 kB / 0.7998 GB, free: 13.17 MB / 0.6231 GB Notification: Performance of FrontEnd: time 1.743e-06/0.2653, allocations: 0 / 0.7998 GB, free: 13.17 MB / 0.6231 GB Notification: Performance of Transformations before backend: time 1.137e-05/0.2653, allocations: 3.984 kB / 0.7998 GB, free: 13.16 MB / 0.6231 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 184 * Number of variables: 184 Notification: Performance of Generate backend data structure: time 0.002002/0.2673, allocations: 1.149 MB / 0.8009 GB, free: 11.96 MB / 0.6231 GB Notification: Performance of prepare preOptimizeDAE: time 4.403e-05/0.2673, allocations: 8.031 kB / 0.8009 GB, free: 11.96 MB / 0.6231 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009392/0.2767, allocations: 1.689 MB / 0.8025 GB, free: 10.27 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001133/0.2779, allocations: 0.6273 MB / 0.8032 GB, free: 9.598 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.974e-05/0.278, allocations: 45.67 kB / 0.8032 GB, free: 9.555 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001591/0.2781, allocations: 56.34 kB / 0.8033 GB, free: 9.5 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004757/0.2829, allocations: 1.909 MB / 0.8051 GB, free: 7.523 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.808e-05/0.2829, allocations: 15.84 kB / 0.8051 GB, free: 7.508 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001184/0.2831, allocations: 23.98 kB / 0.8052 GB, free: 7.484 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003264/0.2834, allocations: 149.3 kB / 0.8053 GB, free: 7.336 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.007825/0.2912, allocations: 2.605 MB / 0.8078 GB, free: 4.73 MB / 0.6231 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.009967/0.3012, allocations: 6.653 MB / 0.8143 GB, free: 13.71 MB / 0.6387 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003367/0.3047, allocations: 1.264 MB / 0.8156 GB, free: 12.43 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002547/0.3072, allocations: 0.8998 MB / 0.8165 GB, free: 11.53 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 0.002161/0.3094, allocations: 1.48 MB / 0.8179 GB, free: 9.98 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.75e-05/0.3095, allocations: 42.56 kB / 0.8179 GB, free: 9.93 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=73): time 2.465e-06/0.3095, allocations: 3.938 kB / 0.8179 GB, free: 9.926 MB / 0.6387 GB Notification: Performance of matching and sorting (n=107): time 0.02801/0.3375, allocations: 8.097 MB / 0.8259 GB, free: 1.777 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.865e-05/0.3376, allocations: 98.05 kB / 0.8259 GB, free: 1.66 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007162/0.3383, allocations: 0.5769 MB / 0.8265 GB, free: 1.074 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 0.0001475/0.3385, allocations: 49.64 kB / 0.8266 GB, free: 1.02 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002581/0.3387, allocations: 419 kB / 0.827 GB, free: 0.6016 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.000319/0.3391, allocations: 370.7 kB / 0.8273 GB, free: 240 kB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004687/0.3395, allocations: 254.8 kB / 0.8276 GB, free: 15.98 MB / 0.6544 GB Notification: Performance of setup shared object (initialization): time 0.0001586/0.3397, allocations: 390.7 kB / 0.8279 GB, free: 15.59 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002906/0.3426, allocations: 1.11 MB / 0.829 GB, free: 14.48 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003124/0.3458, allocations: 1.445 MB / 0.8304 GB, free: 12.89 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005987/0.3518, allocations: 2.585 MB / 0.8329 GB, free: 10.16 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.737e-06/0.3518, allocations: 4 kB / 0.8329 GB, free: 10.16 MB / 0.6544 GB Notification: Performance of matching and sorting (n=163) (initialization): time 0.01118/0.363, allocations: 3.843 MB / 0.8367 GB, free: 6.285 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 3.311e-05/0.3631, allocations: 12.09 kB / 0.8367 GB, free: 6.273 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.351e-05/0.3631, allocations: 12 kB / 0.8367 GB, free: 6.262 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.005126/0.3682, allocations: 1.33 MB / 0.838 GB, free: 4.918 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002069/0.3703, allocations: 451.2 kB / 0.8385 GB, free: 4.477 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01642/0.3868, allocations: 12.14 MB / 0.8503 GB, free: 7.777 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002533/0.3893, allocations: 303.5 kB / 0.8506 GB, free: 7.48 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003049/0.3897, allocations: 59.97 kB / 0.8507 GB, free: 7.422 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.003391/0.3931, allocations: 1.314 MB / 0.8519 GB, free: 6.102 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.003103/0.3962, allocations: 1.437 MB / 0.8533 GB, free: 4.523 MB / 0.67 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.006051/0.4023, allocations: 2.557 MB / 0.8558 GB, free: 1.828 MB / 0.67 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 8.727e-06/0.4023, allocations: 4 kB / 0.8558 GB, free: 1.824 MB / 0.67 GB Notification: Performance of matching and sorting (n=163) (initialization_lambda0): time 0.01029/0.4126, allocations: 3.62 MB / 0.8594 GB, free: 14.18 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 2.573e-05/0.4127, allocations: 12 kB / 0.8594 GB, free: 14.17 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.723e-05/0.4127, allocations: 8.469 kB / 0.8594 GB, free: 14.16 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003923/0.4166, allocations: 1.061 MB / 0.8604 GB, free: 13.09 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002099/0.4187, allocations: 471.1 kB / 0.8609 GB, free: 12.62 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01376/0.4325, allocations: 11.11 MB / 0.8717 GB, free: 0.9531 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002271/0.4348, allocations: 303.6 kB / 0.872 GB, free: 0.6562 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002228/0.4351, allocations: 64.08 kB / 0.8721 GB, free: 0.5938 MB / 0.6856 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 46 * 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 (123): * Single equations (assignments): 119 * Array equations: 0 * 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): 3 systems {(2,8,100.0%), (2,8,100.0%), (3,9,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(3,9)} Notification: Performance of prepare postOptimizeDAE: time 0.0004547/0.4355, allocations: 259.8 kB / 0.8723 GB, free: 340 kB / 0.6856 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002725/0.4358, allocations: 86.91 kB / 0.8724 GB, free: 252 kB / 0.6856 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01076/0.4466, allocations: 3.723 MB / 0.876 GB, free: 12.49 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.037e-05/0.4466, allocations: 16 kB / 0.8761 GB, free: 12.47 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.078e-05/0.4467, allocations: 7.938 kB / 0.8761 GB, free: 12.46 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.336e-05/0.4467, allocations: 3.984 kB / 0.8761 GB, free: 12.46 MB / 0.7012 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01304/0.4597, allocations: 5.429 MB / 0.8814 GB, free: 6.887 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.3e-05/0.4598, allocations: 4 kB / 0.8814 GB, free: 6.883 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001648/0.4614, allocations: 351.4 kB / 0.8817 GB, free: 6.539 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.004462/0.4659, allocations: 1.205 MB / 0.8829 GB, free: 5.32 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001916/0.4661, allocations: 35.97 kB / 0.8829 GB, free: 5.285 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01479/0.4809, allocations: 11.65 MB / 0.8943 GB, free: 9.07 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.284e-06/0.481, allocations: 7.938 kB / 0.8943 GB, free: 9.062 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009954/0.4909, allocations: 3.634 MB / 0.8979 GB, free: 5.332 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006737/0.4916, allocations: 332.2 kB / 0.8982 GB, free: 4.988 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002763/0.4919, allocations: 35.94 kB / 0.8982 GB, free: 4.953 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001993/0.4939, allocations: 315.9 kB / 0.8985 GB, free: 4.645 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003466/0.4943, allocations: 108.1 kB / 0.8986 GB, free: 4.539 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001211/0.4944, allocations: 47.97 kB / 0.8987 GB, free: 4.492 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.0005659/0.495, allocations: 402.8 kB / 0.899 GB, free: 4.098 MB / 0.7169 GB Notification: Performance of sort global known variables: time 2.1e-07/0.495, allocations: 0 / 0.899 GB, free: 4.098 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.002205/0.4972, allocations: 0.6054 MB / 0.8996 GB, free: 3.492 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 24 * 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 (68): * Single equations (assignments): 64 * Array equations: 0 * 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): 3 systems {(3,9,100.0%), (2,8,100.0%), (2,8,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(3,9)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0002778/0.4975, allocations: 143.1 kB / 0.8998 GB, free: 3.344 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.01429/0.5118, allocations: 5.805 MB / 0.9054 GB, free: 13.45 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 9.929e-06/0.5119, allocations: 0 / 0.9054 GB, free: 13.45 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.005125/0.517, allocations: 2.11 MB / 0.9075 GB, free: 11.29 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001286/0.5183, allocations: 173.3 kB / 0.9077 GB, free: 11.12 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01085/0.5292, allocations: 3.957 MB / 0.9115 GB, free: 7.062 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008269/0.53, allocations: 1.11 MB / 0.9126 GB, free: 5.922 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005599/0.5306, allocations: 99.34 kB / 0.9127 GB, free: 5.824 MB / 0.7325 GB Notification: Performance of SimCode: time 6.72e-07/0.5306, allocations: 4 kB / 0.9127 GB, free: 5.82 MB / 0.7325 GB Notification: Performance of Templates: time 0.4552/0.9858, allocations: 29.38 MB / 0.9414 GB, free: 121.6 MB / 0.7325 GB make -j1 -f Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull.makefile (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull.sim & ./Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull.pipe 2>&1)