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 0.001059/0.001059, allocations: 98.56 kB / 16.27 MB, free: 6.418 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001156/0.001156, allocations: 190.3 kB / 17.2 MB, free: 5.953 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.329/1.329, allocations: 205.1 MB / 223.1 MB, free: 12.31 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.855/1.855, allocations: 292.3 MB / 0.5495 GB, free: 17.58 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 0.001464/0.001464, allocations: 72.47 kB / 0.6722 GB, free: 6.586 MB / 0.545 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2283/0.2298, allocations: 114.6 MB / 0.784 GB, free: 3.914 MB / 0.6544 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesBalanced.Conversion.Examples.ACACTransformerFull): time 0.4083/0.6382, allocations: 5.45 MB / 0.7894 GB, free: 46.12 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.005527/0.6437, allocations: 4.139 MB / 0.7934 GB, free: 44.84 MB / 0.6544 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004964/0.6443, allocations: 18.72 kB / 0.7934 GB, free: 44.84 MB / 0.6544 GB Notification: Performance of NFTyping.typeComponents: time 0.001462/0.6457, allocations: 0.5805 MB / 0.794 GB, free: 44.72 MB / 0.6544 GB Notification: Performance of NFTyping.typeBindings: time 0.001462/0.6472, allocations: 0.661 MB / 0.7946 GB, free: 44.6 MB / 0.6544 GB Notification: Performance of NFTyping.typeClassSections: time 0.001379/0.6486, allocations: 0.5597 MB / 0.7952 GB, free: 44.51 MB / 0.6544 GB Notification: Performance of NFFlatten.flatten: time 0.001101/0.6498, allocations: 1.14 MB / 0.7963 GB, free: 44.27 MB / 0.6544 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0005979/0.6504, allocations: 450.8 kB / 0.7967 GB, free: 44.24 MB / 0.6544 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0005097/0.6509, allocations: 457.4 kB / 0.7972 GB, free: 44.13 MB / 0.6544 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0006871/0.6516, allocations: 0.539 MB / 0.7977 GB, free: 44 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 0.0001101/0.6517, allocations: 64.91 kB / 0.7977 GB, free: 44 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001527/0.6532, allocations: 0.8372 MB / 0.7986 GB, free: 43.83 MB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.0003056/0.6536, allocations: 326.3 kB / 0.7989 GB, free: 43.79 MB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.0003995/0.654, allocations: 429.5 kB / 0.7993 GB, free: 43.57 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.002043/0.656, allocations: 1.392 MB / 0.8006 GB, free: 43.11 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 6.953e-06/0.656, allocations: 0 / 0.8006 GB, free: 43.11 MB / 0.6544 GB Notification: Performance of FrontEnd: time 1.943e-06/0.6561, allocations: 1.125 kB / 0.8006 GB, free: 43.11 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 2.343e-05/0.6561, allocations: 0.6562 kB / 0.8006 GB, free: 43.11 MB / 0.6544 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 0.002337/0.6584, allocations: 1.165 MB / 0.8018 GB, free: 42.3 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 4.763e-05/0.6585, allocations: 11.77 kB / 0.8018 GB, free: 42.3 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01044/0.6689, allocations: 1.686 MB / 0.8034 GB, free: 42.22 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001457/0.6704, allocations: 0.6192 MB / 0.804 GB, free: 41.82 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.566e-05/0.6705, allocations: 49.5 kB / 0.8041 GB, free: 41.79 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002094/0.6707, allocations: 55.14 kB / 0.8041 GB, free: 41.78 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005523/0.6762, allocations: 1.908 MB / 0.806 GB, free: 41.18 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.543e-05/0.6763, allocations: 1.922 kB / 0.806 GB, free: 41.18 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001276/0.6764, allocations: 31.16 kB / 0.806 GB, free: 41.16 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004032/0.6769, allocations: 153.6 kB / 0.8062 GB, free: 41.14 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008547/0.6854, allocations: 2.603 MB / 0.8087 GB, free: 40.61 MB / 0.6544 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01031/0.6958, allocations: 6.658 MB / 0.8152 GB, free: 36.14 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00365/0.6994, allocations: 1.254 MB / 0.8165 GB, free: 35.79 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002765/0.7022, allocations: 0.8963 MB / 0.8173 GB, free: 35.57 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.002316/0.7046, allocations: 1.483 MB / 0.8188 GB, free: 34.61 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.71e-05/0.7046, allocations: 45.06 kB / 0.8188 GB, free: 34.57 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=73): time 2.956e-06/0.7046, allocations: 0 / 0.8188 GB, free: 34.57 MB / 0.6544 GB Notification: Performance of matching and sorting (n=107): time 0.02985/0.7345, allocations: 8.099 MB / 0.8267 GB, free: 32.65 MB / 0.6544 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.551e-05/0.7346, allocations: 88.64 kB / 0.8268 GB, free: 32.55 MB / 0.6544 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009166/0.7355, allocations: 0.5841 MB / 0.8274 GB, free: 32.29 MB / 0.6544 GB Notification: Performance of collectPreVariables (initialization): time 0.0002755/0.7358, allocations: 46.36 kB / 0.8274 GB, free: 32.24 MB / 0.6544 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002084/0.736, allocations: 408.4 kB / 0.8278 GB, free: 31.91 MB / 0.6544 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003215/0.7363, allocations: 375.3 kB / 0.8282 GB, free: 31.61 MB / 0.6544 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004909/0.7368, allocations: 263.3 kB / 0.8284 GB, free: 31.5 MB / 0.6544 GB Notification: Performance of setup shared object (initialization): time 0.0001305/0.737, allocations: 392.1 kB / 0.8288 GB, free: 31.15 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002875/0.7399, allocations: 1.109 MB / 0.8299 GB, free: 30.66 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002989/0.7429, allocations: 1.445 MB / 0.8313 GB, free: 29.67 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005856/0.7487, allocations: 2.58 MB / 0.8338 GB, free: 28.11 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.567e-05/0.7488, allocations: 3.969 kB / 0.8338 GB, free: 28.11 MB / 0.6544 GB Notification: Performance of matching and sorting (n=163) (initialization): time 0.0113/0.7601, allocations: 3.843 MB / 0.8376 GB, free: 26.12 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 3.692e-05/0.7602, allocations: 15.69 kB / 0.8376 GB, free: 26.12 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.671e-05/0.7602, allocations: 9.969 kB / 0.8376 GB, free: 26.12 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004961/0.7652, allocations: 1.328 MB / 0.8389 GB, free: 25.47 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002225/0.7674, allocations: 457.7 kB / 0.8393 GB, free: 25.31 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01513/0.7826, allocations: 12.14 MB / 0.8512 GB, free: 15.88 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002545/0.7851, allocations: 300.2 kB / 0.8515 GB, free: 15.74 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002061/0.7854, allocations: 64.88 kB / 0.8515 GB, free: 15.72 MB / 0.6544 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00332/0.7887, allocations: 1.312 MB / 0.8528 GB, free: 15.02 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.003097/0.7918, allocations: 1.438 MB / 0.8542 GB, free: 14.04 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00584/0.7977, allocations: 2.55 MB / 0.8567 GB, free: 12.49 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.401e-05/0.7977, allocations: 2.125 kB / 0.8567 GB, free: 12.49 MB / 0.6544 GB Notification: Performance of matching and sorting (n=163) (initialization_lambda0): time 0.009986/0.8077, allocations: 3.63 MB / 0.8603 GB, free: 10.61 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 2.355e-05/0.8078, allocations: 10.88 kB / 0.8603 GB, free: 10.61 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.854e-05/0.8078, allocations: 9.625 kB / 0.8603 GB, free: 10.61 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003841/0.8116, allocations: 1.063 MB / 0.8613 GB, free: 10.07 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002156/0.8138, allocations: 467.7 kB / 0.8618 GB, free: 9.668 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01153/0.8254, allocations: 11.11 MB / 0.8726 GB, free: 14 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002417/0.8278, allocations: 300.2 kB / 0.8729 GB, free: 13.71 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001616/0.828, allocations: 71.53 kB / 0.873 GB, free: 13.64 MB / 0.67 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 0.0004951/0.8285, allocations: 255.9 kB / 0.8732 GB, free: 13.38 MB / 0.67 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002547/0.8288, allocations: 87.75 kB / 0.8733 GB, free: 13.3 MB / 0.67 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01094/0.8397, allocations: 3.718 MB / 0.8769 GB, free: 9.566 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.736e-05/0.8398, allocations: 12 kB / 0.8769 GB, free: 9.555 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.561e-05/0.8398, allocations: 6.25 kB / 0.8769 GB, free: 9.551 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.67e-05/0.8398, allocations: 3.984 kB / 0.8769 GB, free: 9.547 MB / 0.67 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01322/0.853, allocations: 5.446 MB / 0.8823 GB, free: 3.957 MB / 0.67 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.31e-05/0.8531, allocations: 4 kB / 0.8823 GB, free: 3.953 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001718/0.8548, allocations: 351.9 kB / 0.8826 GB, free: 3.609 MB / 0.67 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.004478/0.8593, allocations: 1.205 MB / 0.8838 GB, free: 2.395 MB / 0.67 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001794/0.8595, allocations: 31.97 kB / 0.8838 GB, free: 2.363 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01482/0.8743, allocations: 11.65 MB / 0.8952 GB, free: 6.168 MB / 0.6856 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.188e-06/0.8744, allocations: 9.125 kB / 0.8952 GB, free: 6.16 MB / 0.6856 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01027/0.8847, allocations: 3.626 MB / 0.8987 GB, free: 2.43 MB / 0.6856 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000815/0.8855, allocations: 335.9 kB / 0.8991 GB, free: 2.082 MB / 0.6856 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002115/0.8858, allocations: 33.67 kB / 0.8991 GB, free: 2.051 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002036/0.8878, allocations: 303.5 kB / 0.8994 GB, free: 1.754 MB / 0.6856 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003457/0.8882, allocations: 116 kB / 0.8995 GB, free: 1.641 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000106/0.8883, allocations: 47.97 kB / 0.8995 GB, free: 1.594 MB / 0.6856 GB Notification: Performance of sorting global known variables: time 0.000502/0.8888, allocations: 402.8 kB / 0.8999 GB, free: 1.199 MB / 0.6856 GB Notification: Performance of sort global known variables: time 4.41e-07/0.8888, allocations: 0 / 0.8999 GB, free: 1.199 MB / 0.6856 GB Notification: Performance of remove unused functions: time 0.002388/0.8912, allocations: 0.6055 MB / 0.9005 GB, free: 0.5938 MB / 0.6856 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 0.0002765/0.8915, allocations: 135.1 kB / 0.9006 GB, free: 464 kB / 0.6856 GB Notification: Performance of simCode: created initialization part: time 0.01526/0.9067, allocations: 5.796 MB / 0.9063 GB, free: 10.56 MB / 0.7012 GB Notification: Performance of simCode: created event and clocks part: time 1.449e-05/0.9068, allocations: 4 kB / 0.9063 GB, free: 10.55 MB / 0.7012 GB Notification: Performance of simCode: created simulation system equations: time 0.005558/0.9124, allocations: 2.126 MB / 0.9084 GB, free: 8.375 MB / 0.7012 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001412/0.9138, allocations: 165.9 kB / 0.9085 GB, free: 8.227 MB / 0.7012 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01162/0.9254, allocations: 3.608 MB / 0.9121 GB, free: 4.516 MB / 0.7012 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009172/0.9264, allocations: 1.11 MB / 0.9131 GB, free: 3.379 MB / 0.7012 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006169/0.927, allocations: 95.36 kB / 0.9132 GB, free: 3.285 MB / 0.7012 GB Notification: Performance of SimCode: time 1.443e-06/0.927, allocations: 3.938 kB / 0.9132 GB, free: 3.281 MB / 0.7012 GB Notification: Performance of Templates: time 0.03699/0.964, allocations: 29.4 MB / 0.9419 GB, free: 5.996 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)