Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr AixLib_AixLib.Fluid.Sensors.Examples.TemperatureWetBulb.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/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 4.0.0+maint.om/package.mo", uses=false) 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/Modelica_DeviceDrivers 2.1.1/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo", uses=false) Using package SDF with version 0.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo) Using package Modelica_DeviceDrivers with version 2.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/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) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+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 AixLib with version 1.3.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/package.mo) Running command: "" <> buildModelFMU(AixLib.Fluid.Sensors.Examples.TemperatureWetBulb,fileNamePrefix="AixLib_AixLib_Fluid_Sensors_Examples_TemperatureWetBulb",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(AixLib.Fluid.Sensors.Examples.TemperatureWetBulb,fileNamePrefix="AixLib_AixLib_Fluid_Sensors_Examples_TemperatureWetBulb",fmuType="me",version="2.0",platforms={"static"}) [:1:1-1:32:writable] Error: Class GC_set_max_heap_size not found in scope (looking for a function or record). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/BoundaryConditions/InternalGains/Examples/InternalGains/Lights.mo:27:20-27:398:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/BoundaryConditions/InternalGains/Examples/InternalGains/Machines.mo:31:20-31:400:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_Cleanergy_C9G.mo:36:34-36:594:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:588:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:3852:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_NE_SE_SW_NW_Hor.mo:5:35-5:324:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_Hor.mo:5:35-5:320:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_RoofN_Roof_S.mo:5:35-5:362:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6228:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6853:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:8435:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:9369:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:11505:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:12875:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:2066:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:4252:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/ThermalZones/HighOrder/Components/Examples/DryAir/DryAir_test.mo:71:18-71:405:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2-development/package.mo): time 1.665/1.665, allocations: 265 MB / 272.3 MB, free: 8.789 MB / 218.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00139/0.00139, allocations: 189.2 kB / 329.7 MB, free: 380 kB / 266.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.425/1.425, allocations: 221.4 MB / 0.5941 GB, free: 14.51 MB / 458.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00127/0.00127, allocations: 96.56 kB / 0.6993 GB, free: 2.648 MB / 0.5418 GB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/package.mo): time 0.05292/0.05292, allocations: 11.89 MB / 0.816 GB, free: 65.57 MB / 0.5418 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo:9:42-9:258:writable] Notification: This is an open source dummy package of a commercial library. If you want it to be supported, you will need to add an implemention on our github repository: https://github.com/Modelica-OpenVendorSpecificLibraries. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo): time 0.0003852/0.0003854, allocations: 13.52 kB / 0.924 GB, free: 86.85 MB / 0.573 GB Notification: Performance of FrontEnd - loaded program: time 0.2568/0.2572, allocations: 117.8 MB / 1.039 GB, free: 9.164 MB / 0.5887 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2728/0.53, allocations: 110.2 MB / 1.147 GB, free: 10.84 MB / 0.698 GB Notification: Performance of FrontEnd - scodeFlatten: time 4.536/5.066, allocations: 1.855 GB / 3.002 GB, free: 316.3 MB / 0.9324 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002575/5.066, allocations: 90.31 kB / 3.002 GB, free: 316.3 MB / 0.9324 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 49 * Number of variables: 49 Notification: Performance of Generate backend data structure: time 0.4141/5.481, allocations: 199.8 MB / 3.197 GB, free: 132.2 MB / 0.9324 GB Notification: Performance of prepare preOptimizeDAE: time 4.315e-05/5.481, allocations: 12 kB / 3.197 GB, free: 132.2 MB / 0.9324 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006674/5.481, allocations: 79.55 kB / 3.197 GB, free: 132.1 MB / 0.9324 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005198/5.482, allocations: 301.9 kB / 3.197 GB, free: 131.8 MB / 0.9324 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.662e-05/5.482, allocations: 4 kB / 3.197 GB, free: 131.8 MB / 0.9324 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.923e-05/5.482, allocations: 12 kB / 3.197 GB, free: 131.7 MB / 0.9324 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.0003261/5.482, allocations: 152.8 kB / 3.197 GB, free: 131.6 MB / 0.9324 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003504/5.483, allocations: 247.3 kB / 3.198 GB, free: 131.3 MB / 0.9324 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.2e-05/5.483, allocations: 3.938 kB / 3.198 GB, free: 131.3 MB / 0.9324 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.934e-05/5.483, allocations: 3.984 kB / 3.198 GB, free: 131.3 MB / 0.9324 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.306e-06/5.483, allocations: 4 kB / 3.198 GB, free: 131.3 MB / 0.9324 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001554/5.484, allocations: 1.225 MB / 3.199 GB, free: 130 MB / 0.9324 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002128/5.484, allocations: 126.6 kB / 3.199 GB, free: 129.9 MB / 0.9324 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001126/5.485, allocations: 80.83 kB / 3.199 GB, free: 129.8 MB / 0.9324 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004938/5.485, allocations: 307.2 kB / 3.199 GB, free: 129.4 MB / 0.9324 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.449e-05/5.485, allocations: 34.56 kB / 3.199 GB, free: 129.4 MB / 0.9324 GB Notification: Performance of pre-optimization done (n=14): time 1.582e-06/5.485, allocations: 0 / 3.199 GB, free: 129.4 MB / 0.9324 GB Notification: Performance of matching and sorting (n=14): time 0.001202/5.486, allocations: 306 kB / 3.2 GB, free: 129.1 MB / 0.9324 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.315e-05/5.486, allocations: 55.41 kB / 3.2 GB, free: 129 MB / 0.9324 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001427/5.487, allocations: 184.3 kB / 3.2 GB, free: 128.8 MB / 0.9324 GB Notification: Performance of collectPreVariables (initialization): time 2.504e-05/5.487, allocations: 29.7 kB / 3.2 GB, free: 128.8 MB / 0.9324 GB Notification: Performance of collectInitialEqns (initialization): time 6.033e-05/5.487, allocations: 148 kB / 3.2 GB, free: 128.6 MB / 0.9324 GB Notification: Performance of collectInitialBindings (initialization): time 3.421e-05/5.487, allocations: 43.34 kB / 3.2 GB, free: 128.6 MB / 0.9324 GB Notification: Performance of simplifyInitialFunctions (initialization): time 1.232e-05/5.487, allocations: 0 / 3.2 GB, free: 128.6 MB / 0.9324 GB Notification: Performance of setup shared object (initialization): time 6.193e-05/5.487, allocations: 330.8 kB / 3.2 GB, free: 128.3 MB / 0.9324 GB Notification: Performance of preBalanceInitialSystem (initialization): time 9.96e-05/5.487, allocations: 55.98 kB / 3.2 GB, free: 128.2 MB / 0.9324 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001094/5.487, allocations: 114.8 kB / 3.201 GB, free: 128.1 MB / 0.9324 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0002113/5.487, allocations: 108.1 kB / 3.201 GB, free: 128 MB / 0.9324 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.687e-06/5.487, allocations: 3.984 kB / 3.201 GB, free: 128 MB / 0.9324 GB Notification: Performance of matching and sorting (n=18) (initialization): time 0.000868/5.488, allocations: 298 kB / 3.201 GB, free: 127.7 MB / 0.9324 GB Notification: Performance of prepare postOptimizeDAE: time 1.476e-05/5.488, allocations: 4 kB / 3.201 GB, free: 127.7 MB / 0.9324 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.945e-06/5.488, allocations: 4 kB / 3.201 GB, free: 127.7 MB / 0.9324 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006167/5.489, allocations: 92.88 kB / 3.201 GB, free: 127.6 MB / 0.9324 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000257/5.489, allocations: 55.91 kB / 3.201 GB, free: 127.5 MB / 0.9324 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00176/5.491, allocations: 1.507 MB / 3.203 GB, free: 125.9 MB / 0.9324 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002837/5.491, allocations: 43.92 kB / 3.203 GB, free: 125.8 MB / 0.9324 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.899e-05/5.491, allocations: 11.94 kB / 3.203 GB, free: 125.8 MB / 0.9324 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (16): * Single equations (assignments): 15 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {1 2} Notification: Performance of prepare postOptimizeDAE: time 8.642e-05/5.491, allocations: 105.6 kB / 3.203 GB, free: 125.7 MB / 0.9324 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.362e-05/5.491, allocations: 23.72 kB / 3.203 GB, free: 125.7 MB / 0.9324 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.000844/5.492, allocations: 315.9 kB / 3.203 GB, free: 125.4 MB / 0.9324 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.198e-06/5.492, allocations: 0 / 3.203 GB, free: 125.4 MB / 0.9324 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.793e-06/5.492, allocations: 0 / 3.203 GB, free: 125.4 MB / 0.9324 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.181e-06/5.492, allocations: 4.219 kB / 3.203 GB, free: 125.4 MB / 0.9324 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00131/5.493, allocations: 0.6815 MB / 3.204 GB, free: 124.6 MB / 0.9324 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.426e-06/5.494, allocations: 0 / 3.204 GB, free: 124.6 MB / 0.9324 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002208/5.494, allocations: 52.06 kB / 3.204 GB, free: 124.6 MB / 0.9324 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005277/5.494, allocations: 96.69 kB / 3.204 GB, free: 124.5 MB / 0.9324 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.283e-05/5.494, allocations: 0 / 3.204 GB, free: 124.5 MB / 0.9324 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001603/5.496, allocations: 1.523 MB / 3.205 GB, free: 122.8 MB / 0.9324 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.607e-06/5.496, allocations: 3.938 kB / 3.205 GB, free: 122.8 MB / 0.9324 GB Notification: Performance of postOpt detectJacobianSparsePattern (simulation): time 0.0008348/5.497, allocations: 443.5 kB / 3.206 GB, free: 122.4 MB / 0.9324 GB Notification: Performance of postOpt generateSymbolicLinearization (simulation): time 0.001027/5.498, allocations: 0.8397 MB / 3.207 GB, free: 121.5 MB / 0.9324 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001452/5.498, allocations: 124.7 kB / 3.207 GB, free: 121.3 MB / 0.9324 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.123e-05/5.498, allocations: 0 / 3.207 GB, free: 121.3 MB / 0.9324 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002993/5.498, allocations: 35.97 kB / 3.207 GB, free: 121.3 MB / 0.9324 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.011e-05/5.498, allocations: 15.98 kB / 3.207 GB, free: 121.3 MB / 0.9324 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.458e-05/5.498, allocations: 4 kB / 3.207 GB, free: 121.3 MB / 0.9324 GB Notification: Performance of sort global known variables: time 0.0001155/5.499, allocations: 144.5 kB / 3.207 GB, free: 121.1 MB / 0.9324 GB Notification: Performance of remove unused functions: time 0.001419/5.5, allocations: 243.7 kB / 3.207 GB, free: 120.9 MB / 0.9324 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (12): * Single equations (assignments): 11 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {1 3} Notification: Performance of Backend phase and start with SimCode phase: time 0.001786/5.502, allocations: 1.08 MB / 3.208 GB, free: 119.8 MB / 0.9324 GB Notification: Performance of simCode: created initialization part: time 0.0006754/5.502, allocations: 269.8 kB / 3.208 GB, free: 119.5 MB / 0.9324 GB Notification: Performance of simCode: created event and clocks part: time 3.937e-06/5.503, allocations: 0 / 3.208 GB, free: 119.5 MB / 0.9324 GB Notification: Performance of simCode: created simulation system equations: time 0.0003763/5.503, allocations: 205.7 kB / 3.209 GB, free: 119.3 MB / 0.9324 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000584/5.503, allocations: 76.55 kB / 3.209 GB, free: 119.3 MB / 0.9324 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0009263/5.504, allocations: 350.8 kB / 3.209 GB, free: 118.9 MB / 0.9324 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003647/5.505, allocations: 0.8076 MB / 3.21 GB, free: 118 MB / 0.9324 GB Notification: Performance of SimCode: time 3.3e-07/5.505, allocations: 0 / 3.21 GB, free: 118 MB / 0.9324 GB (rm -f AixLib_AixLib.Fluid.Sensors.Examples.TemperatureWetBulb.pipe ; mkfifo AixLib_AixLib.Fluid.Sensors.Examples.TemperatureWetBulb.pipe ; head -c 1048576 < AixLib_AixLib.Fluid.Sensors.Examples.TemperatureWetBulb.pipe >> ../files/AixLib_AixLib.Fluid.Sensors.Examples.TemperatureWetBulb.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_AixLib_AixLib_Fluid_Sensors_Examples_TemperatureWetBulb_fmu --startTime=0 --stopTime=120 --timeout=50 --tolerance=1e-06 AixLib_AixLib_Fluid_Sensors_Examples_TemperatureWetBulb.fmu > AixLib_AixLib.Fluid.Sensors.Examples.TemperatureWetBulb.pipe 2>&1)