Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.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.HeatPumps.Validation.Carnot_TCon_LimitedCapacity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity") translateModel(Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.007104/0.007104, allocations: 100.1 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 0.001356/0.001356, allocations: 197.1 kB / 16.68 MB, free: 5.93 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.395/1.395, allocations: 205.1 MB / 222.6 MB, free: 4.516 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Annex60 1.0.0/package.mo): time 0.4325/0.4325, allocations: 54.95 MB / 324.8 MB, free: 15.96 MB / 270.1 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 0.001474/0.001474, allocations: 68.88 kB / 456.2 MB, free: 38.71 MB / 382.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1251/0.1266, allocations: 59.59 MB / 0.5037 GB, free: 9.859 MB / 382.1 MB Notification: Performance of NFInst.instantiate(Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity): time 0.06109/0.1877, allocations: 60.49 MB / 0.5628 GB, free: 14.45 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.01838/0.2062, allocations: 11.23 MB / 0.5738 GB, free: 3.18 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002721/0.209, allocations: 51.69 kB / 0.5738 GB, free: 3.129 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002745/0.2118, allocations: 0.7455 MB / 0.5745 GB, free: 2.379 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.007014/0.2188, allocations: 2.024 MB / 0.5765 GB, free: 356 kB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003293/0.2221, allocations: 1.014 MB / 0.5775 GB, free: 15.34 MB / 462.1 MB Notification: Performance of NFFlatten.flatten: time 0.004886/0.227, allocations: 3.034 MB / 0.5805 GB, free: 12.29 MB / 462.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001709/0.2287, allocations: 1.087 MB / 0.5815 GB, free: 11.17 MB / 462.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00399/0.2327, allocations: 1.481 MB / 0.583 GB, free: 9.688 MB / 462.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.00181/0.2346, allocations: 0.9724 MB / 0.5839 GB, free: 8.711 MB / 462.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002048/0.2348, allocations: 120 kB / 0.584 GB, free: 8.594 MB / 462.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002984/0.2378, allocations: 1.221 MB / 0.5852 GB, free: 7.371 MB / 462.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0003762/0.2382, allocations: 294.9 kB / 0.5855 GB, free: 7.082 MB / 462.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001004/0.2392, allocations: 0.7309 MB / 0.5862 GB, free: 6.348 MB / 462.1 MB Notification: Performance of NFConvertDAE.convert: time 0.003132/0.2423, allocations: 2.24 MB / 0.5884 GB, free: 4.102 MB / 462.1 MB Notification: Performance of FrontEnd - DAE generated: time 6.833e-06/0.2423, allocations: 0 / 0.5884 GB, free: 4.102 MB / 462.1 MB Notification: Performance of FrontEnd: time 1.903e-06/0.2423, allocations: 0 / 0.5884 GB, free: 4.102 MB / 462.1 MB Notification: Performance of Transformations before backend: time 2.546e-05/0.2424, allocations: 0 / 0.5884 GB, free: 4.102 MB / 462.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 218 * Number of variables: 218 Notification: Performance of Generate backend data structure: time 0.003233/0.2456, allocations: 1.75 MB / 0.5901 GB, free: 2.289 MB / 462.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.676e-05/0.2457, allocations: 8.031 kB / 0.5901 GB, free: 2.281 MB / 462.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001914/0.2476, allocations: 363 kB / 0.5905 GB, free: 1.926 MB / 462.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002008/0.2496, allocations: 1.089 MB / 0.5915 GB, free: 0.793 MB / 462.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.804e-05/0.2497, allocations: 66 kB / 0.5916 GB, free: 0.7305 MB / 462.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001237/0.2498, allocations: 88 kB / 0.5917 GB, free: 0.6445 MB / 462.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002505/0.2523, allocations: 1.209 MB / 0.5929 GB, free: 15.33 MB / 478.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.552e-05/0.2523, allocations: 3.938 kB / 0.5929 GB, free: 15.32 MB / 478.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.326e-05/0.2525, allocations: 40 kB / 0.5929 GB, free: 15.29 MB / 478.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.154e-05/0.2525, allocations: 32 kB / 0.5929 GB, free: 15.25 MB / 478.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002361/0.2549, allocations: 0.9286 MB / 0.5939 GB, free: 14.33 MB / 478.1 MB 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 0.006837/0.2617, allocations: 6.154 MB / 0.5999 GB, free: 7.777 MB / 478.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001801/0.2635, allocations: 0.5734 MB / 0.6004 GB, free: 7.195 MB / 478.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005218/0.2641, allocations: 226 kB / 0.6006 GB, free: 6.973 MB / 478.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.001058/0.2651, allocations: 0.8743 MB / 0.6015 GB, free: 5.914 MB / 478.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.539e-05/0.2652, allocations: 38.89 kB / 0.6015 GB, free: 5.867 MB / 478.1 MB Notification: Performance of pre-optimization done (n=39): time 2.565e-06/0.2652, allocations: 0 / 0.6015 GB, free: 5.867 MB / 478.1 MB Notification: Performance of matching and sorting (n=39): time 0.007096/0.2723, allocations: 1.615 MB / 0.6031 GB, free: 4.223 MB / 478.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000112/0.2724, allocations: 166.2 kB / 0.6033 GB, free: 4.023 MB / 478.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001755/0.2742, allocations: 1.153 MB / 0.6044 GB, free: 2.859 MB / 478.1 MB Notification: Performance of collectPreVariables (initialization): time 6.323e-05/0.2743, allocations: 41.7 kB / 0.6044 GB, free: 2.812 MB / 478.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0006307/0.2749, allocations: 0.6006 MB / 0.605 GB, free: 2.207 MB / 478.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.000163/0.2751, allocations: 138 kB / 0.6051 GB, free: 2.07 MB / 478.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000282/0.2754, allocations: 162.5 kB / 0.6053 GB, free: 1.902 MB / 478.1 MB Notification: Performance of setup shared object (initialization): time 0.0001433/0.2755, allocations: 333.9 kB / 0.6056 GB, free: 1.57 MB / 478.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008325/0.2764, allocations: 312.6 kB / 0.6059 GB, free: 1.262 MB / 478.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001099/0.2775, allocations: 0.6347 MB / 0.6065 GB, free: 488 kB / 478.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001693/0.2792, allocations: 0.7971 MB / 0.6073 GB, free: 15.57 MB / 494.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.594e-06/0.2792, allocations: 0 / 0.6073 GB, free: 15.57 MB / 494.1 MB Notification: Performance of matching and sorting (n=88) (initialization): time 0.004791/0.284, allocations: 1.366 MB / 0.6086 GB, free: 14.19 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.794e-05/0.284, allocations: 8 kB / 0.6087 GB, free: 14.18 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.311e-05/0.2841, allocations: 8 kB / 0.6087 GB, free: 14.18 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001003/0.2851, allocations: 252.7 kB / 0.6089 GB, free: 13.93 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006937/0.2858, allocations: 163.7 kB / 0.6091 GB, free: 13.77 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001466/0.2873, allocations: 0.8487 MB / 0.6099 GB, free: 12.89 MB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001553/0.2888, allocations: 174.9 kB / 0.6101 GB, free: 12.72 MB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.815e-05/0.289, allocations: 36 kB / 0.6101 GB, free: 12.68 MB / 494.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001369/0.2903, allocations: 0.498 MB / 0.6106 GB, free: 12.18 MB / 494.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001158/0.2915, allocations: 0.6073 MB / 0.6112 GB, free: 11.43 MB / 494.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00175/0.2933, allocations: 0.7389 MB / 0.6119 GB, free: 10.58 MB / 494.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.244e-05/0.2933, allocations: 4 kB / 0.6119 GB, free: 10.58 MB / 494.1 MB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.00483/0.2981, allocations: 1.319 MB / 0.6132 GB, free: 9.246 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 3.156e-05/0.2982, allocations: 10.19 kB / 0.6132 GB, free: 9.238 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.724e-05/0.2982, allocations: 8 kB / 0.6132 GB, free: 9.23 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009175/0.2991, allocations: 260.6 kB / 0.6135 GB, free: 8.973 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006166/0.2998, allocations: 155.7 kB / 0.6136 GB, free: 8.82 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001455/0.3012, allocations: 0.8397 MB / 0.6144 GB, free: 7.957 MB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001455/0.3027, allocations: 143.7 kB / 0.6146 GB, free: 7.816 MB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.756e-05/0.3028, allocations: 35.98 kB / 0.6146 GB, free: 7.781 MB / 494.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 35 * 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 (77): * Single equations (assignments): 76 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,11)} Notification: Performance of prepare postOptimizeDAE: time 0.000425/0.3032, allocations: 232 kB / 0.6148 GB, free: 7.547 MB / 494.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005553/0.3038, allocations: 118.6 kB / 0.6149 GB, free: 7.43 MB / 494.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004301/0.3081, allocations: 1.031 MB / 0.6159 GB, free: 6.391 MB / 494.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.131e-05/0.3081, allocations: 4 kB / 0.6159 GB, free: 6.387 MB / 494.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.471e-06/0.3081, allocations: 0 / 0.6159 GB, free: 6.387 MB / 494.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.765e-06/0.3082, allocations: 4 kB / 0.6159 GB, free: 6.383 MB / 494.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005063/0.3132, allocations: 1.944 MB / 0.6178 GB, free: 4.352 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.104e-05/0.3132, allocations: 4 kB / 0.6178 GB, free: 4.348 MB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003061/0.3136, allocations: 71.81 kB / 0.6179 GB, free: 4.277 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0008772/0.3145, allocations: 244.9 kB / 0.6181 GB, free: 4.035 MB / 494.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.506e-05/0.3145, allocations: 16 kB / 0.6182 GB, free: 4.02 MB / 494.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001757/0.3163, allocations: 0.9033 MB / 0.619 GB, free: 3.09 MB / 494.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.742e-06/0.3163, allocations: 4 kB / 0.619 GB, free: 3.086 MB / 494.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003226/0.3195, allocations: 1.051 MB / 0.6201 GB, free: 1.984 MB / 494.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0005387/0.3201, allocations: 259.5 kB / 0.6203 GB, free: 1.711 MB / 494.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002244/0.3203, allocations: 11.98 kB / 0.6203 GB, free: 1.699 MB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009929/0.3213, allocations: 79.91 kB / 0.6204 GB, free: 1.621 MB / 494.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.597e-05/0.3214, allocations: 23.97 kB / 0.6204 GB, free: 1.598 MB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.855e-05/0.3215, allocations: 23.98 kB / 0.6205 GB, free: 1.574 MB / 494.1 MB Notification: Performance of sorting global known variables: time 0.001553/0.323, allocations: 0.7997 MB / 0.6212 GB, free: 0.7695 MB / 494.1 MB Notification: Performance of sort global known variables: time 3.41e-07/0.3231, allocations: 0 / 0.6212 GB, free: 0.7695 MB / 494.1 MB Notification: Performance of remove unused functions: time 0.001928/0.325, allocations: 0.5693 MB / 0.6218 GB, free: 204 kB / 494.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 11 * 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 (29): * Single equations (assignments): 27 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,11)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007305/0.3257, allocations: 293.1 kB / 0.6221 GB, free: 15.91 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.003098/0.3288, allocations: 1.125 MB / 0.6232 GB, free: 14.79 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 5.75e-06/0.3289, allocations: 3.938 kB / 0.6232 GB, free: 14.79 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.00113/0.33, allocations: 333.3 kB / 0.6235 GB, free: 14.46 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002383/0.3324, allocations: 0.5768 MB / 0.6241 GB, free: 13.89 MB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003986/0.3364, allocations: 1.795 MB / 0.6258 GB, free: 12.04 MB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008483/0.3373, allocations: 1.058 MB / 0.6268 GB, free: 10.95 MB / 0.4981 GB Notification: Performance of simCode: alias equations: time 0.0009813/0.3382, allocations: 243.9 kB / 0.6271 GB, free: 10.71 MB / 0.4981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002257/0.3385, allocations: 87.36 kB / 0.6272 GB, free: 10.63 MB / 0.4981 GB Notification: Performance of SimCode: time 4.81e-07/0.3385, allocations: 0 / 0.6272 GB, free: 10.63 MB / 0.4981 GB Notification: Performance of Templates: time 0.3277/0.6662, allocations: 24.77 MB / 0.6513 GB, free: 121.1 MB / 0.4981 GB make -j1 -f Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.makefile (rm -f Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.pipe ; mkfifo Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.pipe ; head -c 1048576 < Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.pipe >> ../files/Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.sim & ./Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity -abortSlowSimulation -alarm=480 -lv LOG_STATS > Annex60_1.0.0_Annex60.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.pipe 2>&1)