Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.conf.json loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/IBPSA 3.0.0-master/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package IBPSA with version 3.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/IBPSA 3.0.0-master/package.mo) Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Running command: translateModel(IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity") translateModel(IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0008433/0.0008434, allocations: 174.2 kB / 16.08 MB, free: 5.727 MB / 13.93 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/IBPSA 3.0.0-master/package.mo): time 0.4481/0.4481, allocations: 89.07 MB / 105.9 MB, free: 12.46 MB / 90.72 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.238/1.238, allocations: 225.7 MB / 353.2 MB, free: 1.129 MB / 282.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009801/0.0009804, allocations: 94.78 kB / 425.4 MB, free: 6.668 MB / 314.7 MB Notification: Performance of FrontEnd - loaded program: time 0.000343/0.0003431, allocations: 8 kB / 0.4955 GB, free: 4.555 MB / 394.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2888/0.2891, allocations: 71.33 MB / 0.5652 GB, free: 42.36 MB / 410.7 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity): time 0.04172/0.3309, allocations: 60.86 MB / 0.6246 GB, free: 12.44 MB / 442.7 MB Notification: Performance of NFInst.instExpressions: time 0.01692/0.3479, allocations: 16.65 MB / 0.6409 GB, free: 10.53 MB / 458.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001856/0.3498, allocations: 47.69 kB / 0.6409 GB, free: 10.48 MB / 458.7 MB Notification: Performance of NFTyping.typeComponents: time 0.001775/0.3516, allocations: 0.5477 MB / 0.6415 GB, free: 9.93 MB / 458.7 MB Notification: Performance of NFTyping.typeBindings: time 0.004846/0.3565, allocations: 1.793 MB / 0.6432 GB, free: 8.129 MB / 458.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.002813/0.3593, allocations: 1.1 MB / 0.6443 GB, free: 7.027 MB / 458.7 MB Notification: Performance of NFFlatten.flatten: time 0.004316/0.3636, allocations: 3.898 MB / 0.6481 GB, free: 3.117 MB / 458.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001473/0.3651, allocations: 0.8963 MB / 0.649 GB, free: 2.191 MB / 458.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002331/0.3675, allocations: 1.163 MB / 0.6501 GB, free: 1.023 MB / 458.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001429/0.3689, allocations: 0.8514 MB / 0.6509 GB, free: 172 kB / 458.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0002326/0.3691, allocations: 44 kB / 0.651 GB, free: 128 kB / 458.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002746/0.3719, allocations: 1.306 MB / 0.6523 GB, free: 14.82 MB / 474.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0003181/0.3722, allocations: 202.9 kB / 0.6524 GB, free: 14.62 MB / 474.7 MB Notification: Performance of NFVerifyModel.verify: time 0.0009077/0.3731, allocations: 0.6311 MB / 0.6531 GB, free: 13.98 MB / 474.7 MB Notification: Performance of NFConvertDAE.convert: time 0.003247/0.3764, allocations: 2.212 MB / 0.6552 GB, free: 11.76 MB / 474.7 MB Notification: Performance of FrontEnd - DAE generated: time 4.348e-06/0.3764, allocations: 0 / 0.6552 GB, free: 11.76 MB / 474.7 MB Notification: Performance of FrontEnd: time 1.503e-06/0.3764, allocations: 4 kB / 0.6552 GB, free: 11.75 MB / 474.7 MB Notification: Performance of Transformations before backend: time 5.017e-05/0.3765, allocations: 0 / 0.6552 GB, free: 11.75 MB / 474.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 192 * Number of variables: 192 Notification: Performance of Generate backend data structure: time 0.002905/0.3794, allocations: 1.485 MB / 0.6567 GB, free: 10.21 MB / 474.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.622e-05/0.3794, allocations: 11.97 kB / 0.6567 GB, free: 10.2 MB / 474.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001593/0.381, allocations: 387 kB / 0.6571 GB, free: 9.82 MB / 474.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002185/0.3832, allocations: 1.14 MB / 0.6582 GB, free: 8.621 MB / 474.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003323/0.3836, allocations: 125.9 kB / 0.6583 GB, free: 8.5 MB / 474.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000132/0.3837, allocations: 84 kB / 0.6584 GB, free: 8.418 MB / 474.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001827/0.3856, allocations: 0.9622 MB / 0.6593 GB, free: 7.41 MB / 474.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.827e-05/0.3856, allocations: 3.938 kB / 0.6593 GB, free: 7.406 MB / 474.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.451e-05/0.3857, allocations: 32 kB / 0.6593 GB, free: 7.375 MB / 474.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.736e-05/0.3857, allocations: 20 kB / 0.6594 GB, free: 7.355 MB / 474.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001982/0.3877, allocations: 0.8392 MB / 0.6602 GB, free: 6.52 MB / 474.7 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 0.007096/0.3948, allocations: 4.804 MB / 0.6649 GB, free: 1.359 MB / 474.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001608/0.3964, allocations: 0.5872 MB / 0.6655 GB, free: 0.7617 MB / 474.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006231/0.3971, allocations: 284.7 kB / 0.6657 GB, free: 492 kB / 474.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.001399/0.3985, allocations: 1.396 MB / 0.6671 GB, free: 14.79 MB / 490.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.706e-05/0.3986, allocations: 42.44 kB / 0.6671 GB, free: 14.74 MB / 490.7 MB Notification: Performance of pre-optimization done (n=43): time 2.615e-06/0.3986, allocations: 0 / 0.6671 GB, free: 14.74 MB / 490.7 MB Notification: Performance of matching and sorting (n=43): time 0.007763/0.4063, allocations: 2.039 MB / 0.6691 GB, free: 12.67 MB / 490.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 4.027e-05/0.4064, allocations: 55.41 kB / 0.6692 GB, free: 12.6 MB / 490.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001973/0.4084, allocations: 1.048 MB / 0.6702 GB, free: 11.54 MB / 490.7 MB Notification: Performance of collectPreVariables (initialization): time 9.074e-05/0.4085, allocations: 37.7 kB / 0.6702 GB, free: 11.5 MB / 490.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004791/0.409, allocations: 0.5312 MB / 0.6707 GB, free: 10.96 MB / 490.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001456/0.4092, allocations: 145.8 kB / 0.6709 GB, free: 10.82 MB / 490.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 3.741e-05/0.4092, allocations: 12 kB / 0.6709 GB, free: 10.8 MB / 490.7 MB Notification: Performance of setup shared object (initialization): time 0.0001286/0.4093, allocations: 326 kB / 0.6712 GB, free: 10.48 MB / 490.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007354/0.4101, allocations: 284.9 kB / 0.6715 GB, free: 10.2 MB / 490.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009185/0.411, allocations: 0.4903 MB / 0.672 GB, free: 9.629 MB / 490.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001372/0.4124, allocations: 0.6587 MB / 0.6726 GB, free: 8.914 MB / 490.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.713e-06/0.4124, allocations: 3.984 kB / 0.6726 GB, free: 8.91 MB / 490.7 MB Notification: Performance of matching and sorting (n=65) (initialization): time 0.003667/0.4161, allocations: 1.16 MB / 0.6737 GB, free: 7.738 MB / 490.7 MB Notification: Performance of prepare postOptimizeDAE: time 0.0001512/0.4163, allocations: 208.4 kB / 0.6739 GB, free: 7.477 MB / 490.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.147e-05/0.4163, allocations: 4 kB / 0.6739 GB, free: 7.473 MB / 490.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001242/0.4175, allocations: 328.7 kB / 0.6743 GB, free: 7.148 MB / 490.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000454/0.418, allocations: 115.8 kB / 0.6744 GB, free: 7.035 MB / 490.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001499/0.4195, allocations: 0.9464 MB / 0.6753 GB, free: 6.062 MB / 490.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001319/0.4208, allocations: 179.2 kB / 0.6755 GB, free: 5.887 MB / 490.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.49e-05/0.4209, allocations: 31.98 kB / 0.6755 GB, free: 5.855 MB / 490.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.07e-05/0.421, allocations: 11.94 kB / 0.6755 GB, free: 5.844 MB / 490.7 MB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.003065/0.424, allocations: 0.9963 MB / 0.6765 GB, free: 4.844 MB / 490.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.06e-05/0.4241, allocations: 8.031 kB / 0.6765 GB, free: 4.836 MB / 490.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001084/0.4251, allocations: 316.7 kB / 0.6768 GB, free: 4.523 MB / 490.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004355/0.4256, allocations: 115.8 kB / 0.6769 GB, free: 4.41 MB / 490.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001423/0.427, allocations: 0.9347 MB / 0.6778 GB, free: 3.449 MB / 490.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001245/0.4283, allocations: 167.3 kB / 0.678 GB, free: 3.285 MB / 490.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.588e-05/0.4284, allocations: 24 kB / 0.678 GB, free: 3.262 MB / 490.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * 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 (51): * Single equations (assignments): 50 * 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 {(1,14)} Notification: Performance of prepare postOptimizeDAE: time 0.0006179/0.429, allocations: 353 kB / 0.6783 GB, free: 2.906 MB / 490.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003151/0.4293, allocations: 110.6 kB / 0.6784 GB, free: 2.797 MB / 490.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003719/0.433, allocations: 1.156 MB / 0.6796 GB, free: 1.629 MB / 490.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.886e-05/0.4331, allocations: 4 kB / 0.6796 GB, free: 1.625 MB / 490.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.843e-06/0.4331, allocations: 0 / 0.6796 GB, free: 1.625 MB / 490.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.668e-06/0.4331, allocations: 7.984 kB / 0.6796 GB, free: 1.617 MB / 490.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005449/0.4386, allocations: 2.154 MB / 0.6817 GB, free: 15.38 MB / 0.4948 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.174e-05/0.4386, allocations: 4 kB / 0.6817 GB, free: 15.38 MB / 0.4948 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002152/0.4388, allocations: 47.97 kB / 0.6817 GB, free: 15.33 MB / 0.4948 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001147/0.44, allocations: 348.6 kB / 0.6821 GB, free: 14.98 MB / 0.4948 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.135e-05/0.44, allocations: 12 kB / 0.6821 GB, free: 14.97 MB / 0.4948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00153/0.4416, allocations: 0.9665 MB / 0.683 GB, free: 13.98 MB / 0.4948 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.654e-06/0.4416, allocations: 7.938 kB / 0.683 GB, free: 13.97 MB / 0.4948 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003378/0.445, allocations: 1.194 MB / 0.6842 GB, free: 12.73 MB / 0.4948 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006206/0.4456, allocations: 275.5 kB / 0.6845 GB, free: 12.44 MB / 0.4948 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000229/0.4459, allocations: 8 kB / 0.6845 GB, free: 12.43 MB / 0.4948 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009158/0.4468, allocations: 103.8 kB / 0.6846 GB, free: 12.33 MB / 0.4948 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.682e-05/0.4469, allocations: 35.89 kB / 0.6846 GB, free: 12.3 MB / 0.4948 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.979e-05/0.447, allocations: 23.98 kB / 0.6846 GB, free: 12.27 MB / 0.4948 GB Notification: Performance of sorting global known variables: time 0.001482/0.4485, allocations: 0.7352 MB / 0.6853 GB, free: 11.53 MB / 0.4948 GB Notification: Performance of sort global known variables: time 3.51e-07/0.4485, allocations: 0 / 0.6853 GB, free: 11.53 MB / 0.4948 GB Notification: Performance of remove unused functions: time 0.001799/0.4503, allocations: 0.5731 MB / 0.6859 GB, free: 10.96 MB / 0.4948 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 10 * 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 (33): * Single equations (assignments): 28 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * 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 {(2,15)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0009918/0.4513, allocations: 417.3 kB / 0.6863 GB, free: 10.55 MB / 0.4948 GB Notification: Performance of simCode: created initialization part: time 0.002801/0.4541, allocations: 1.046 MB / 0.6873 GB, free: 9.508 MB / 0.4948 GB Notification: Performance of simCode: created event and clocks part: time 4.829e-06/0.4541, allocations: 0 / 0.6873 GB, free: 9.508 MB / 0.4948 GB Notification: Performance of simCode: created simulation system equations: time 0.0007926/0.4549, allocations: 345.2 kB / 0.6876 GB, free: 9.172 MB / 0.4948 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002836/0.4578, allocations: 0.5138 MB / 0.6881 GB, free: 8.656 MB / 0.4948 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004136/0.4619, allocations: 2.254 MB / 0.6903 GB, free: 6.344 MB / 0.4948 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008104/0.4628, allocations: 1.062 MB / 0.6914 GB, free: 5.254 MB / 0.4948 GB Notification: Performance of simCode: alias equations: time 0.001106/0.4639, allocations: 216.7 kB / 0.6916 GB, free: 5.039 MB / 0.4948 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002258/0.4641, allocations: 79.42 kB / 0.6917 GB, free: 4.961 MB / 0.4948 GB Notification: Performance of SimCode: time 9.02e-07/0.4641, allocations: 0 / 0.6917 GB, free: 4.961 MB / 0.4948 GB Notification: Performance of Templates: time 0.2506/0.7148, allocations: 24.3 MB / 0.7154 GB, free: 143 MB / 0.5105 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.makefile (rm -f IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.sim & ./IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.HeatPumps.Validation.Carnot_TCon_LimitedCapacity.pipe 2>&1)