Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo", uses=false) Using package PhotoVoltaics with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/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 ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: "" <> buildModelFMU(PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic,fileNamePrefix="PhotoVoltaics_PhotoVoltaics_Examples_SimpleCellTemperatureCharacteristic",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic,fileNamePrefix="PhotoVoltaics_PhotoVoltaics_Examples_SimpleCellTemperatureCharacteristic",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00153/0.00153, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001812/0.001812, allocations: 193.4 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.39/1.39, allocations: 222.9 MB / 240.2 MB, free: 4.418 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.0.0/package.mo): time 0.1325/0.1325, allocations: 5.393 MB / 295.8 MB, free: 2.883 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002432/0.002433, allocations: 63.91 kB / 361 MB, free: 14 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.09043/0.09289, allocations: 50.62 MB / 411.6 MB, free: 11.34 MB / 350.1 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic): time 0.005057/0.09799, allocations: 3.889 MB / 415.5 MB, free: 7.43 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.002394/0.1004, allocations: 1.503 MB / 417 MB, free: 5.922 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004495/0.1009, allocations: 4 kB / 417 MB, free: 5.918 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0006947/0.1016, allocations: 234.5 kB / 417.3 MB, free: 5.688 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0006439/0.1023, allocations: 190.5 kB / 417.5 MB, free: 5.5 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0005077/0.1028, allocations: 231.3 kB / 417.7 MB, free: 5.277 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.0008606/0.1037, allocations: 0.7708 MB / 418.4 MB, free: 4.504 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0003427/0.104, allocations: 214.5 kB / 418.7 MB, free: 4.281 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0003929/0.1044, allocations: 298.8 kB / 418.9 MB, free: 3.988 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0004475/0.1049, allocations: 350.6 kB / 419.3 MB, free: 3.645 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001457/0.105, allocations: 76 kB / 419.4 MB, free: 3.57 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0001761/0.1052, allocations: 84 kB / 419.4 MB, free: 3.488 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001353/0.1054, allocations: 159.4 kB / 419.6 MB, free: 3.332 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0003729/0.1057, allocations: 314.4 kB / 419.9 MB, free: 3.023 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.000832/0.1066, allocations: 0.7437 MB / 420.7 MB, free: 2.277 MB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.859e-06/0.1066, allocations: 0 / 420.7 MB, free: 2.277 MB / 350.1 MB Notification: Performance of FrontEnd: time 1.824e-06/0.1066, allocations: 4 kB / 420.7 MB, free: 2.273 MB / 350.1 MB Notification: Performance of Transformations before backend: time 1.951e-05/0.1066, allocations: 0 / 420.7 MB, free: 2.273 MB / 350.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 86 * Number of variables: 86 Notification: Performance of Generate backend data structure: time 0.002738/0.1094, allocations: 1.042 MB / 421.7 MB, free: 1.176 MB / 350.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.114e-05/0.1094, allocations: 16.02 kB / 421.7 MB, free: 1.16 MB / 350.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.169e-05/0.1095, allocations: 66.72 kB / 421.8 MB, free: 1.086 MB / 350.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001321/0.1097, allocations: 68.19 kB / 421.8 MB, free: 1.02 MB / 350.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001253/0.1109, allocations: 0.5611 MB / 422.4 MB, free: 428 kB / 350.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001084/0.111, allocations: 44.91 kB / 422.5 MB, free: 384 kB / 350.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 6.644e-05/0.1111, allocations: 36 kB / 422.5 MB, free: 348 kB / 350.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.1397/0.2509, allocations: 450.2 kB / 422.9 MB, free: 47.91 MB / 350.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.812e-05/0.2509, allocations: 1.594 kB / 422.9 MB, free: 47.91 MB / 350.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.581e-05/0.251, allocations: 12.41 kB / 422.9 MB, free: 47.91 MB / 350.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.658e-06/0.251, allocations: 9 kB / 423 MB, free: 47.91 MB / 350.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001185/0.2522, allocations: 414.3 kB / 423.4 MB, free: 47.91 MB / 350.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002485/0.2547, allocations: 1.579 MB / 424.9 MB, free: 47.31 MB / 350.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001146/0.2558, allocations: 0.5377 MB / 425.5 MB, free: 47.1 MB / 350.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005105/0.2564, allocations: 208.5 kB / 425.7 MB, free: 47.09 MB / 350.1 MB Notification: Performance of preOpt evalFunc (simulation): time 3.002e-05/0.2564, allocations: 4.453 kB / 425.7 MB, free: 47.09 MB / 350.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006492/0.2571, allocations: 277.2 kB / 426 MB, free: 47.02 MB / 350.1 MB Notification: Performance of pre-optimization done (n=29): time 2.274e-06/0.2571, allocations: 0 / 426 MB, free: 47.02 MB / 350.1 MB Notification: Performance of matching and sorting (n=29): time 0.003638/0.2607, allocations: 0.9542 MB / 426.9 MB, free: 46.82 MB / 350.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.047e-05/0.2608, allocations: 80.27 kB / 427 MB, free: 46.73 MB / 350.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003875/0.2611, allocations: 433.2 kB / 427.4 MB, free: 46.53 MB / 350.1 MB Notification: Performance of collectPreVariables (initialization): time 3.166e-05/0.2612, allocations: 33.02 kB / 427.4 MB, free: 46.49 MB / 350.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001184/0.2613, allocations: 265.2 kB / 427.7 MB, free: 46.3 MB / 350.1 MB Notification: Performance of collectInitialBindings (initialization): time 5.621e-05/0.2614, allocations: 96.06 kB / 427.8 MB, free: 46.23 MB / 350.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001216/0.2615, allocations: 75.73 kB / 427.9 MB, free: 46.18 MB / 350.1 MB Notification: Performance of setup shared object (initialization): time 5.973e-05/0.2616, allocations: 357.3 kB / 428.2 MB, free: 45.85 MB / 350.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005161/0.2621, allocations: 186.5 kB / 428.4 MB, free: 45.79 MB / 350.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005041/0.2626, allocations: 234.8 kB / 428.6 MB, free: 45.68 MB / 350.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009509/0.2636, allocations: 420.8 kB / 429 MB, free: 45.49 MB / 350.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.795e-06/0.2636, allocations: 0 / 429 MB, free: 45.49 MB / 350.1 MB Notification: Performance of matching and sorting (n=41) (initialization): time 0.002848/0.2664, allocations: 0.7677 MB / 429.8 MB, free: 45.24 MB / 350.1 MB Notification: Performance of prepare postOptimizeDAE: time 4.291e-05/0.2665, allocations: 40.11 kB / 429.8 MB, free: 45.2 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.285e-06/0.2665, allocations: 0 / 429.8 MB, free: 45.2 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007722/0.2673, allocations: 240.7 kB / 430.1 MB, free: 45.14 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003725/0.2677, allocations: 78.19 kB / 430.2 MB, free: 45.14 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004212/0.2719, allocations: 3.73 MB / 433.9 MB, free: 41.89 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004945/0.2724, allocations: 63.09 kB / 433.9 MB, free: 41.87 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.145e-05/0.2724, allocations: 16.97 kB / 434 MB, free: 41.86 MB / 350.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005662/0.273, allocations: 301.4 kB / 434.3 MB, free: 41.7 MB / 350.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000464/0.2735, allocations: 239.3 kB / 434.5 MB, free: 41.59 MB / 350.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008685/0.2744, allocations: 402.3 kB / 434.9 MB, free: 41.4 MB / 350.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.755e-06/0.2744, allocations: 8.578 kB / 434.9 MB, free: 41.4 MB / 350.1 MB Notification: Performance of matching and sorting (n=41) (initialization_lambda0): time 0.002466/0.2768, allocations: 0.7632 MB / 435.7 MB, free: 41.15 MB / 350.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.27e-05/0.2769, allocations: 32.2 kB / 435.7 MB, free: 41.12 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.916e-06/0.2769, allocations: 0 / 435.7 MB, free: 41.12 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006832/0.2776, allocations: 240.7 kB / 435.9 MB, free: 41.05 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003494/0.2779, allocations: 79.73 kB / 436 MB, free: 41.05 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004136/0.2821, allocations: 3.726 MB / 439.7 MB, free: 37.8 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004955/0.2826, allocations: 69.11 kB / 439.8 MB, free: 37.78 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.968e-05/0.2826, allocations: 12.91 kB / 439.8 MB, free: 37.78 MB / 350.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 6 (triangleAndStep.trapezoid.count,$PRE.triangleAndStep.trapezoid.count,triangleAndStep.trapezoid.T_start,$PRE.triangleAndStep.trapezoid.T_start,triangleAndStep.realToInteger.y,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (37): * Single equations (assignments): 34 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {2} * Without analytic Jacobian (size): 0 systems 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 {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0001218/0.2828, allocations: 208.2 kB / 440 MB, free: 37.59 MB / 350.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.161e-05/0.2828, allocations: 49.88 kB / 440.1 MB, free: 37.56 MB / 350.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002262/0.2851, allocations: 0.6416 MB / 440.7 MB, free: 37.37 MB / 350.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.399e-06/0.2851, allocations: 3.25 kB / 440.7 MB, free: 37.37 MB / 350.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.473e-06/0.2851, allocations: 3.828 kB / 440.7 MB, free: 37.37 MB / 350.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.578e-06/0.2851, allocations: 0 / 440.7 MB, free: 37.37 MB / 350.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002651/0.2878, allocations: 1.184 MB / 441.9 MB, free: 36.8 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.136e-06/0.2878, allocations: 3.938 kB / 441.9 MB, free: 36.8 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003084/0.2881, allocations: 65.59 kB / 442 MB, free: 36.79 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003019/0.2884, allocations: 165.1 kB / 442.1 MB, free: 36.75 MB / 350.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.513e-05/0.2885, allocations: 8 kB / 442.1 MB, free: 36.74 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002798/0.2913, allocations: 1.998 MB / 444.1 MB, free: 35.14 MB / 350.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.352e-06/0.2913, allocations: 0 / 444.1 MB, free: 35.14 MB / 350.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002172/0.2935, allocations: 0.7181 MB / 444.8 MB, free: 34.85 MB / 350.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.000134/0.2936, allocations: 159.7 kB / 445 MB, free: 34.7 MB / 350.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.575e-05/0.2937, allocations: 18.97 kB / 445 MB, free: 34.69 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004342/0.2941, allocations: 41.7 kB / 445.1 MB, free: 34.68 MB / 350.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.746e-05/0.2942, allocations: 33.36 kB / 445.1 MB, free: 34.68 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.409e-05/0.2943, allocations: 13.53 kB / 445.1 MB, free: 34.67 MB / 350.1 MB Notification: Performance of sorting global known variables: time 0.0002681/0.2945, allocations: 302.1 kB / 445.4 MB, free: 34.52 MB / 350.1 MB Notification: Performance of sort global known variables: time 1.7e-07/0.2945, allocations: 0 / 445.4 MB, free: 34.52 MB / 350.1 MB Notification: Performance of remove unused functions: time 0.0007483/0.2953, allocations: 225.1 kB / 445.6 MB, free: 34.47 MB / 350.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition1,triangleAndStep.realToInteger.y,triangleAndStep.trapezoid.T_start,triangleAndStep.trapezoid.count) * Number of discrete states: 1 (triangleAndStep.trapezoid.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (29): * Single equations (assignments): 26 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 {(1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002407/0.2977, allocations: 1.273 MB / 446.9 MB, free: 33.64 MB / 350.1 MB Notification: Performance of simCode: created initialization part: time 0.002272/0.3, allocations: 1.286 MB / 448.2 MB, free: 32.85 MB / 350.1 MB Notification: Performance of simCode: created event and clocks part: time 3.126e-06/0.3, allocations: 3.031 kB / 448.2 MB, free: 32.85 MB / 350.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0005964/0.3006, allocations: 331.5 kB / 448.5 MB, free: 32.68 MB / 350.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000556/0.3012, allocations: 93.72 kB / 448.6 MB, free: 32.65 MB / 350.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008497/0.3097, allocations: 4.802 MB / 453.4 MB, free: 30.1 MB / 350.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002172/0.3099, allocations: 0.8375 MB / 454.2 MB, free: 29.39 MB / 350.1 MB Notification: Performance of simCode: alias equations: time 0.0003469/0.3103, allocations: 66.17 kB / 454.3 MB, free: 29.37 MB / 350.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002073/0.3105, allocations: 174.5 kB / 454.5 MB, free: 29.24 MB / 350.1 MB Notification: Performance of SimCode: time 6.31e-07/0.3105, allocations: 0 / 454.5 MB, free: 29.24 MB / 350.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03984/0.3504, allocations: 14.46 MB / 468.9 MB, free: 27.71 MB / 350.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 10.68/11.03, allocations: 14.16 kB / 468.9 MB, free: 27.7 MB / 350.1 MB (rm -f PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic.pipe ; mkfifo PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic.pipe ; head -c 1048576 < PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic.pipe >> ../files/PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic.sim & python3 -m fmpy simulate --output-file PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0001 PhotoVoltaics_PhotoVoltaics_Examples_SimpleCellTemperatureCharacteristic.fmu > PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellTemperatureCharacteristic.pipe 2>&1)