Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Examples.FlowSystem.Simplified1.conf.json 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/IDEAS 3.0.0-master/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) 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 IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/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) Running command: "" <> buildModelFMU(IDEAS.Fluid.Examples.FlowSystem.Simplified1,fileNamePrefix="IDEAS_IDEAS_Fluid_Examples_FlowSystem_Simplified1",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Examples.FlowSystem.Simplified1,fileNamePrefix="IDEAS_IDEAS_Fluid_Examples_FlowSystem_Simplified1",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001371/0.001371, allocations: 173.9 kB / 7.648 MB, free: 1.422 MB / 5.871 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.7481/0.7481, allocations: 133.6 MB / 141.6 MB, free: 2.906 MB / 106.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.524/1.524, allocations: 221.5 MB / 395.5 MB, free: 10.78 MB / 330.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009332/0.0009329, allocations: 109.6 kB / 478.2 MB, free: 1.32 MB / 346.7 MB Notification: Performance of FrontEnd - loaded program: time 2.211e-05/2.218e-05, allocations: 4 kB / 0.5535 GB, free: 8.984 MB / 442.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4877/0.4878, allocations: 82.31 MB / 0.6339 GB, free: 40.88 MB / 458.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 0.8965/1.384, allocations: 423.4 MB / 1.047 GB, free: 10.68 MB / 0.6823 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002874/1.385, allocations: 90.08 kB / 1.047 GB, free: 10.63 MB / 0.6823 GB Notification: Performance of FrontEnd - DAE generated: time 38.62/40, allocations: 8.715 GB / 9.762 GB, free: 74 MB / 0.948 GB Notification: Performance of FrontEnd: time 2.575e-06/40, allocations: 0 / 9.762 GB, free: 74 MB / 0.948 GB Notification: Performance of Transformations before backend: time 0.004113/40.01, allocations: 430.9 kB / 9.763 GB, free: 73.91 MB / 0.948 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2029 * Number of variables: 2029 Notification: Performance of Generate backend data structure: time 0.06148/40.07, allocations: 13.51 MB / 9.776 GB, free: 67.95 MB / 0.948 GB Notification: Performance of prepare preOptimizeDAE: time 5.598e-05/40.07, allocations: 11.06 kB / 9.776 GB, free: 67.95 MB / 0.948 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01721/40.09, allocations: 2.193 MB / 9.778 GB, free: 66.96 MB / 0.948 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.07224/40.16, allocations: 21.55 MB / 9.799 GB, free: 64.21 MB / 0.948 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006803/40.16, allocations: 254.2 kB / 9.799 GB, free: 64.21 MB / 0.948 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.005298/40.17, allocations: 0.5822 MB / 9.8 GB, free: 64.2 MB / 0.948 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.03369/40.2, allocations: 19.63 MB / 9.819 GB, free: 64.16 MB / 0.948 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.04075/40.24, allocations: 14.43 MB / 9.833 GB, free: 62.77 MB / 0.948 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0007599/40.24, allocations: 28.98 kB / 9.833 GB, free: 62.76 MB / 0.948 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.005796/40.25, allocations: 6.875 kB / 9.833 GB, free: 62.76 MB / 0.948 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004032/40.25, allocations: 362.3 kB / 9.834 GB, free: 62.73 MB / 0.948 GB Warning: The model contains alias variables with conflicting start and/or 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 1.036/41.28, allocations: 78.22 MB / 9.91 GB, free: 83.01 MB / 0.948 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01975/41.3, allocations: 12.65 MB / 9.922 GB, free: 82.64 MB / 0.948 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.01396/41.32, allocations: 9.433 MB / 9.932 GB, free: 82.59 MB / 0.948 GB Warning: The model contains alias variables with conflicting start and/or 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 evalFunc (simulation): time 0.08388/41.4, allocations: 33.71 MB / 9.964 GB, free: 74.24 MB / 0.948 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01801/41.42, allocations: 9.093 MB / 9.973 GB, free: 74.09 MB / 0.948 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.04801/41.47, allocations: 14.92 MB / 9.988 GB, free: 74.09 MB / 0.948 GB Notification: Performance of pre-optimization done (n=614): time 7.955e-05/41.47, allocations: 1.125 kB / 9.988 GB, free: 74.09 MB / 0.948 GB Notification: Performance of matching and sorting (n=616): time 0.7134/42.18, allocations: 139.3 MB / 10.12 GB, free: 69.91 MB / 0.948 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.01e-05/42.18, allocations: 120.3 kB / 10.12 GB, free: 69.84 MB / 0.948 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.03582/42.22, allocations: 13.38 MB / 10.14 GB, free: 69.11 MB / 0.948 GB Notification: Performance of collectPreVariables (initialization): time 0.004584/42.22, allocations: 37.78 kB / 10.14 GB, free: 69.07 MB / 0.948 GB Notification: Performance of collectInitialEqns (initialization): time 0.01146/42.23, allocations: 7.294 MB / 10.14 GB, free: 67.88 MB / 0.948 GB Notification: Performance of collectInitialBindings (initialization): time 0.006069/42.24, allocations: 2.097 MB / 10.15 GB, free: 66.78 MB / 0.948 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.00337/42.24, allocations: 4 kB / 10.15 GB, free: 66.77 MB / 0.948 GB Notification: Performance of setup shared object (initialization): time 0.0009203/42.24, allocations: 0.6445 MB / 10.15 GB, free: 66.45 MB / 0.948 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01349/42.26, allocations: 8.01 MB / 10.15 GB, free: 66.42 MB / 0.948 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0161/42.27, allocations: 10.76 MB / 10.17 GB, free: 63.21 MB / 0.948 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0172/42.29, allocations: 9.347 MB / 10.17 GB, free: 62.25 MB / 0.948 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001207/42.29, allocations: 12 kB / 10.17 GB, free: 62.24 MB / 0.948 GB Notification: Performance of matching and sorting (n=1100) (initialization): time 1.571/43.86, allocations: 123.3 MB / 10.29 GB, free: 80.97 MB / 0.9636 GB Notification: Performance of prepare postOptimizeDAE: time 0.009091/43.87, allocations: 35.28 MB / 10.33 GB, free: 60.06 MB / 0.9792 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002643/43.87, allocations: 49.78 kB / 10.33 GB, free: 60.06 MB / 0.9792 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.6447/44.52, allocations: 143.7 MB / 10.47 GB, free: 58.94 MB / 0.9792 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01543/44.53, allocations: 2.658 MB / 10.47 GB, free: 58.93 MB / 0.9792 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1451/44.68, allocations: 67.46 MB / 10.54 GB, free: 52.41 MB / 0.9792 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.02588/44.7, allocations: 1.04 MB / 10.54 GB, free: 52.01 MB / 0.9792 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.005822/44.71, allocations: 0.7988 MB / 10.54 GB, free: 51.75 MB / 0.9792 GB Notification: Performance of prepare postOptimizeDAE: time 2.13e-05/44.71, allocations: 4.469 kB / 10.54 GB, free: 51.75 MB / 0.9792 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 1.632/46.34, allocations: 120.7 MB / 10.66 GB, free: 116.4 MB / 1.01 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003182/46.34, allocations: 52.56 kB / 10.66 GB, free: 116.4 MB / 1.01 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.6431/46.98, allocations: 143.4 MB / 10.8 GB, free: 116 MB / 1.01 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01274/47, allocations: 2.627 MB / 10.8 GB, free: 116 MB / 1.01 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1483/47.14, allocations: 69.56 MB / 10.87 GB, free: 112.2 MB / 1.01 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.02198/47.17, allocations: 1.014 MB / 10.87 GB, free: 112.2 MB / 1.01 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.004842/47.17, allocations: 0.7548 MB / 10.87 GB, free: 112.2 MB / 1.01 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 231 * Number of states: 0 () * Number of discrete variables: 10 ($whenCondition1,$whenCondition2,booleanToInteger.u,booleanToInteger.y,$PRE.stepPump.pulseStart,stepPump.pulseStart,$PRE.stepValve.T_start,stepValve.T_start,$PRE.stepValve.count,stepValve.count) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (905): * Single equations (assignments): 891 * Array equations: 4 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 7 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 7 {1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(28,89.3%) 28} * Non-linear torn systems: 1 {39 65} Notification: Performance of prepare postOptimizeDAE: time 0.007436/47.18, allocations: 312.2 kB / 10.87 GB, free: 112.1 MB / 1.01 GB Notification: Performance of postOpt createAliasVarsForOutputStates (simulation): time 0.5877/47.77, allocations: 118.8 MB / 10.99 GB, free: 19.46 MB / 1.01 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.007549/47.77, allocations: 1.408 MB / 10.99 GB, free: 18.81 MB / 1.01 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 1.127/48.9, allocations: 43.82 MB / 11.03 GB, free: 119.7 MB / 1.01 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001422/48.9, allocations: 76.86 kB / 11.03 GB, free: 119.7 MB / 1.01 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.108e-05/48.9, allocations: 33.88 kB / 11.03 GB, free: 119.7 MB / 1.01 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.1726/49.07, allocations: 38.7 MB / 11.07 GB, free: 119.1 MB / 1.01 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.2493/49.32, allocations: 58.82 MB / 11.13 GB, free: 115.1 MB / 1.01 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.618e-05/49.32, allocations: 3.969 kB / 11.13 GB, free: 115.1 MB / 1.01 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.007138/49.33, allocations: 1.194 MB / 11.13 GB, free: 115.1 MB / 1.01 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.1806/49.51, allocations: 41.01 MB / 11.17 GB, free: 115 MB / 1.01 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.002213/49.51, allocations: 152.3 kB / 11.17 GB, free: 115 MB / 1.01 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.05262/49.57, allocations: 27.56 MB / 11.19 GB, free: 109.1 MB / 1.01 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.354e-06/49.57, allocations: 3.094 kB / 11.19 GB, free: 109.1 MB / 1.01 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.1828/49.75, allocations: 49.26 MB / 11.24 GB, free: 100.6 MB / 1.01 GB Notification: Performance of postOpt removeConstants (simulation): time 0.01316/49.76, allocations: 3.281 MB / 11.25 GB, free: 99.45 MB / 1.01 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.007862/49.77, allocations: 76.61 kB / 11.25 GB, free: 99.41 MB / 1.01 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0197/49.79, allocations: 0.8573 MB / 11.25 GB, free: 98.93 MB / 1.01 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.003432/49.79, allocations: 449 kB / 11.25 GB, free: 98.71 MB / 1.01 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.00234/49.8, allocations: 265.7 kB / 11.25 GB, free: 98.54 MB / 1.01 GB Notification: Performance of sorting global known variables: time 0.02477/49.82, allocations: 10.07 MB / 11.26 GB, free: 93.16 MB / 1.01 GB Notification: Performance of sort global known variables: time 7.91e-07/49.82, allocations: 1.469 kB / 11.26 GB, free: 93.16 MB / 1.01 GB Notification: Performance of remove unused functions: time 0.05831/49.88, allocations: 7.905 MB / 11.26 GB, free: 85.8 MB / 1.01 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 74 (pmpSouth.vol.dynBal.U,pmpSouth.filter.s[1],pmpSouth.filter.s[2],pmpNorth.vol.dynBal.U,pmpNorth.filter.s[1],pmpNorth.filter.s[2],valSouth1[1].filter.s[1],valSouth1[1].filter.s[2],valSouth1[2].filter.s[1],valSouth1[2].filter.s[2],valSouth1[3].filter.s[1],valSouth1[3].filter.s[2],valSouth1[4].filter.s[1],valSouth1[4].filter.s[2],valSouth2[1].filter.s[1],valSouth2[1].filter.s[2],valSouth2[2].filter.s[1],valSouth2[2].filter.s[2],valSouth2[3].filter.s[1],valSouth2[3].filter.s[2],valSouth2[4].filter.s[1],valSouth2[4].filter.s[2],valSouth2[5].filter.s[1],valSouth2[5].filter.s[2],valSouth2[6].filter.s[1],valSouth2[6].filter.s[2],valSouth2[7].filter.s[1],valSouth2[7].filter.s[2],valSouth2[8].filter.s[1],valSouth2[8].filter.s[2],valNorth1[1].filter.s[1],valNorth1[1].filter.s[2],valNorth1[2].filter.s[1],valNorth1[2].filter.s[2],valNorth1[3].filter.s[1],valNorth1[3].filter.s[2],valNorth1[4].filter.s[1],valNorth1[4].filter.s[2],valNorth2[1].filter.s[1],valNorth2[1].filter.s[2],valNorth2[2].filter.s[1],valNorth2[2].filter.s[2],valNorth2[3].filter.s[1],valNorth2[3].filter.s[2],valNorth2[4].filter.s[1],valNorth2[4].filter.s[2],valNorth2[5].filter.s[1],valNorth2[5].filter.s[2],valNorth2[6].filter.s[1],valNorth2[6].filter.s[2],valNorth2[7].filter.s[1],valNorth2[7].filter.s[2],valNorth2[8].filter.s[1],valNorth2[8].filter.s[2],valSouth.vol.dynBal.U,valSouth.filter.s[1],valSouth.filter.s[2],valNorth.vol.dynBal.U,valNorth.filter.s[1],valNorth.filter.s[2],spl.vol.dynBal.U,spl1.vol.dynBal.U,pumpHea.vol.dynBal.U,pumpHea.filter.s[1],pumpHea.filter.s[2],valHea.filter.s[1],valHea.filter.s[2],valCoo.filter.s[1],valCoo.filter.s[2],spl2.vol.dynBal.U,spl3.vol.dynBal.U,pumpCoo.vol.dynBal.U,pumpCoo.filter.s[1],pumpCoo.filter.s[2]) * Number of discrete variables: 7 ($whenCondition2,$whenCondition1,booleanToInteger.u,booleanToInteger.y,stepPump.pulseStart,stepValve.T_start,stepValve.count) * Number of discrete states: 1 (stepValve.count) * Top-level inputs: 0 Notification: Strong component statistics for simulation (559): * Single equations (assignments): 537 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 3 * If-equations: 0 * Equation systems (linear and non-linear blocks): 7 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 7 {1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(28,89.3%) 28} * Non-linear torn systems: 1 {39 65} Notification: Performance of Backend phase and start with SimCode phase: time 0.2028/50.08, allocations: 54.27 MB / 11.32 GB, free: 53.74 MB / 1.01 GB Notification: Performance of simCode: created initialization part: time 0.06538/50.15, allocations: 33.41 MB / 11.35 GB, free: 32.49 MB / 1.01 GB Notification: Performance of simCode: created event and clocks part: time 1.519e-05/50.15, allocations: 4 kB / 11.35 GB, free: 32.49 MB / 1.01 GB Notification: Performance of simCode: created simulation system equations: time 0.02002/50.17, allocations: 8.654 MB / 11.36 GB, free: 24.62 MB / 1.01 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.04859/50.22, allocations: 7.115 MB / 11.37 GB, free: 19.94 MB / 1.01 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 1.961/52.18, allocations: 30.3 MB / 11.4 GB, free: 123.1 MB / 1.011 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01744/52.19, allocations: 8.54 MB / 11.4 GB, free: 122 MB / 1.011 GB Notification: Performance of simCode: alias equations: time 0.04408/52.24, allocations: 8.039 MB / 11.41 GB, free: 121.9 MB / 1.011 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0191/52.26, allocations: 6.915 MB / 11.42 GB, free: 121.9 MB / 1.011 GB Notification: Performance of SimCode: time 1.112e-06/52.26, allocations: 0 / 11.42 GB, free: 121.9 MB / 1.011 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.976/54.23, allocations: 0.5317 GB / 11.95 GB, free: 123.7 MB / 1.026 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002181/54.23, allocations: 153.8 kB / 11.95 GB, free: 123.5 MB / 1.026 GB Notification: Performance of buildModelFMU: Generate platform static: time 35.23/89.47, allocations: 0 / 11.95 GB, free: 123.5 MB / 1.026 GB (rm -f IDEAS_IDEAS.Fluid.Examples.FlowSystem.Simplified1.pipe ; mkfifo IDEAS_IDEAS.Fluid.Examples.FlowSystem.Simplified1.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Examples.FlowSystem.Simplified1.pipe >> ../files/IDEAS_IDEAS.Fluid.Examples.FlowSystem.Simplified1.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_IDEAS_IDEAS_Fluid_Examples_FlowSystem_Simplified1_fmu --startTime=0 --stopTime=1000 --timeout=50 --tolerance=1e-06 IDEAS_IDEAS_Fluid_Examples_FlowSystem_Simplified1.fmu > IDEAS_IDEAS.Fluid.Examples.FlowSystem.Simplified1.pipe 2>&1)