Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo)
Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo)
Running command: translateModel(Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2")
translateModel(Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.419/1.419, allocations: 251.5 MB / 267.4 MB, free: 11.06 MB / 218.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001168/0.001168, allocations: 175.1 kB / 326.5 MB, free: 2.684 MB / 250.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.727/1.727, allocations: 205 MB / 0.5766 GB, free: 20.96 MB / 426.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0008858/0.0008859, allocations: 87.12 kB / 0.6804 GB, free: 14.71 MB / 0.5105 GB
Notification: Performance of FrontEnd - loaded program: time 0.0003176/0.0003176, allocations: 11.5 kB / 0.7938 GB, free: 136.4 MB / 0.6042 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2053/0.2056, allocations: 105.4 MB / 0.8967 GB, free: 68.15 MB / 0.6042 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2): time 0.03551/0.2412, allocations: 46.26 MB / 0.9419 GB, free: 21.72 MB / 0.6042 GB
Notification: Performance of NFInst.instExpressions: time 0.01557/0.2568, allocations: 12.64 MB / 0.9543 GB, free: 9.059 MB / 0.6042 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.004208/0.2611, allocations: 55.62 kB / 0.9543 GB, free: 9.004 MB / 0.6042 GB
Notification: Performance of NFTyping.typeComponents: time 0.002672/0.2638, allocations: 0.6293 MB / 0.9549 GB, free: 8.371 MB / 0.6042 GB
Notification: Performance of NFTyping.typeBindings: time 0.007446/0.2712, allocations: 2.175 MB / 0.9571 GB, free: 6.191 MB / 0.6042 GB
Notification: Performance of NFTyping.typeClassSections: time 0.00327/0.2745, allocations: 1.196 MB / 0.9582 GB, free: 5.004 MB / 0.6042 GB
Notification: Performance of NFFlatten.flatten: time 0.01532/0.2898, allocations: 17.47 MB / 0.9753 GB, free: 3.484 MB / 0.6198 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.006973/0.2969, allocations: 4.558 MB / 0.9797 GB, free: 14.84 MB / 0.6355 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.007962/0.3049, allocations: 3.384 MB / 0.983 GB, free: 11.45 MB / 0.6355 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.007731/0.3126, allocations: 3.594 MB / 0.9865 GB, free: 7.836 MB / 0.6355 GB
Notification: Performance of NFPackage.collectConstants: time 0.001645/0.3143, allocations: 196 kB / 0.9867 GB, free: 7.645 MB / 0.6355 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.005534/0.3199, allocations: 1.505 MB / 0.9882 GB, free: 6.137 MB / 0.6355 GB
Notification: Performance of NFScalarize.scalarize: time 0.001576/0.3215, allocations: 1.031 MB / 0.9892 GB, free: 5.102 MB / 0.6355 GB
Notification: Performance of NFVerifyModel.verify: time 0.004325/0.3258, allocations: 2.305 MB / 0.9915 GB, free: 2.785 MB / 0.6355 GB
Notification: Performance of NFConvertDAE.convert: time 0.00831/0.3341, allocations: 6.43 MB / 0.9977 GB, free: 12.34 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 1.041e-05/0.3342, allocations: 0 / 0.9977 GB, free: 12.34 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 5.691e-06/0.3342, allocations: 0 / 0.9977 GB, free: 12.34 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0003675/0.3346, allocations: 0 / 0.9977 GB, free: 12.34 MB / 0.6511 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 746
 * Number of variables: 746
Notification: Performance of Generate backend data structure: time 0.012/0.3466, allocations: 4.499 MB / 1.002 GB, free: 7.766 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.677e-05/0.3467, allocations: 8.031 kB / 1.002 GB, free: 7.758 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009628/0.3563, allocations: 1.631 MB / 1.004 GB, free: 6.121 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.01091/0.3673, allocations: 5.158 MB / 1.009 GB, free: 0.8984 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003054/0.3676, allocations: 297.6 kB / 1.009 GB, free: 0.5898 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0009251/0.3686, allocations: 304 kB / 1.009 GB, free: 300 kB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.007829/0.3764, allocations: 4.423 MB / 1.014 GB, free: 11.69 MB / 0.6667 GB
Notification: Performance of preOpt findStateOrder (simulation): time 6.54e-05/0.3765, allocations: 11.94 kB / 1.014 GB, free: 11.68 MB / 0.6667 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003243/0.3768, allocations: 124 kB / 1.014 GB, free: 11.55 MB / 0.6667 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001419/0.377, allocations: 141.4 kB / 1.014 GB, free: 11.41 MB / 0.6667 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006716/0.3837, allocations: 3.807 MB / 1.018 GB, free: 7.594 MB / 0.6667 GB
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 0.0465/0.4302, allocations: 21.93 MB / 1.039 GB, free: 356 kB / 0.6823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.004348/0.4346, allocations: 2.228 MB / 1.041 GB, free: 14.12 MB / 0.698 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.002146/0.4368, allocations: 1.274 MB / 1.042 GB, free: 12.84 MB / 0.698 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000646/0.4375, allocations: 0.5349 MB / 1.043 GB, free: 12.2 MB / 0.698 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.996e-05/0.4376, allocations: 59.88 kB / 1.043 GB, free: 12.13 MB / 0.698 GB
Notification: Performance of pre-optimization done (n=160): time 5.18e-06/0.4376, allocations: 0 / 1.043 GB, free: 12.13 MB / 0.698 GB
Notification: Performance of matching and sorting (n=160): time 0.02322/0.4608, allocations: 6.192 MB / 1.049 GB, free: 5.797 MB / 0.698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.359e-05/0.4609, allocations: 72.66 kB / 1.049 GB, free: 5.711 MB / 0.698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006626/0.4676, allocations: 3.173 MB / 1.052 GB, free: 2.535 MB / 0.698 GB
Notification: Performance of collectPreVariables (initialization): time 0.0007373/0.4684, allocations: 61.7 kB / 1.052 GB, free: 2.469 MB / 0.698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001791/0.4702, allocations: 1.75 MB / 1.054 GB, free: 0.6992 MB / 0.698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.000896/0.4711, allocations: 0.5546 MB / 1.055 GB, free: 140 kB / 0.698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.5255/0.9965, allocations: 195.8 kB / 1.055 GB, free: 145 MB / 0.698 GB
Notification: Performance of setup shared object (initialization): time 7.54e-05/0.9967, allocations: 308.8 kB / 1.055 GB, free: 144.7 MB / 0.698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005432/1.002, allocations: 1.805 MB / 1.057 GB, free: 144.7 MB / 0.698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.00613/1.008, allocations: 2.455 MB / 1.059 GB, free: 144.1 MB / 0.698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.008754/1.017, allocations: 3.534 MB / 1.063 GB, free: 143.5 MB / 0.698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.21e-05/1.017, allocations: 8.438 kB / 1.063 GB, free: 143.5 MB / 0.698 GB
Notification: Performance of matching and sorting (n=281) (initialization): time 0.03896/1.056, allocations: 8.092 MB / 1.071 GB, free: 143.1 MB / 0.698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0004028/1.057, allocations: 0.524 MB / 1.071 GB, free: 142.5 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.03e-05/1.057, allocations: 17.25 kB / 1.071 GB, free: 142.5 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.02602/1.083, allocations: 4.918 MB / 1.076 GB, free: 141.9 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002955/1.086, allocations: 491.9 kB / 1.076 GB, free: 141.9 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0177/1.103, allocations: 6.924 MB / 1.083 GB, free: 137.4 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006543/1.11, allocations: 0.6311 MB / 1.084 GB, free: 137.2 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008768/1.111, allocations: 113.7 kB / 1.084 GB, free: 137.2 MB / 0.698 GB
Notification: Performance of prepare postOptimizeDAE: time 1.865e-05/1.111, allocations: 7.812 kB / 1.084 GB, free: 137.2 MB / 0.698 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02975/1.141, allocations: 7.586 MB / 1.091 GB, free: 132.2 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.047e-05/1.141, allocations: 16 kB / 1.091 GB, free: 132.2 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0231/1.164, allocations: 4.791 MB / 1.096 GB, free: 127.4 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002306/1.166, allocations: 471.2 kB / 1.096 GB, free: 127 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01498/1.181, allocations: 5.717 MB / 1.102 GB, free: 121.2 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005664/1.187, allocations: 0.6066 MB / 1.103 GB, free: 120.7 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006954/1.188, allocations: 104 kB / 1.103 GB, free: 120.6 MB / 0.698 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 65
 * 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 (217):
 * Single equations (assignments): 212
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 2
 * Torn equation systems: 3
 * 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): 2 systems
   {1, 1}
 * 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): 3 systems
   {(3,8), (5,40), (3,8)}
Notification: Performance of prepare postOptimizeDAE: time 0.0034/1.191, allocations: 1.467 MB / 1.104 GB, free: 119.1 MB / 0.698 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001713/1.193, allocations: 322.8 kB / 1.104 GB, free: 118.9 MB / 0.698 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006196/1.199, allocations: 3.052 MB / 1.107 GB, free: 115.9 MB / 0.698 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.643e-05/1.199, allocations: 19.98 kB / 1.107 GB, free: 115.8 MB / 0.698 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.59e-05/1.199, allocations: 4 kB / 1.107 GB, free: 115.8 MB / 0.698 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003791/1.203, allocations: 2.486 MB / 1.11 GB, free: 113.3 MB / 0.698 GB
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 postOpt removeSimpleEquations (simulation): time 0.01497/1.218, allocations: 6.668 MB / 1.116 GB, free: 106.6 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.323e-05/1.218, allocations: 7.75 kB / 1.116 GB, free: 106.6 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001225/1.219, allocations: 287.6 kB / 1.117 GB, free: 106.3 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.002727/1.222, allocations: 0.8697 MB / 1.118 GB, free: 105.4 MB / 0.698 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001571/1.222, allocations: 47.97 kB / 1.118 GB, free: 105.4 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006531/1.229, allocations: 9.986 MB / 1.127 GB, free: 94.68 MB / 0.698 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.278e-06/1.229, allocations: 0 / 1.127 GB, free: 94.68 MB / 0.698 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006991/1.236, allocations: 4.342 MB / 1.132 GB, free: 90.29 MB / 0.698 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.002297/1.238, allocations: 0.6996 MB / 1.132 GB, free: 89.59 MB / 0.698 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001102/1.239, allocations: 32 kB / 1.132 GB, free: 89.56 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003479/1.243, allocations: 263 kB / 1.133 GB, free: 89.32 MB / 0.698 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003135/1.243, allocations: 113.8 kB / 1.133 GB, free: 89.2 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002325/1.243, allocations: 71.95 kB / 1.133 GB, free: 89.13 MB / 0.698 GB
Notification: Performance of sorting global known variables: time 0.004652/1.248, allocations: 2.219 MB / 1.135 GB, free: 86.92 MB / 0.698 GB
Notification: Performance of sort global known variables: time 3.71e-07/1.248, allocations: 0 / 1.135 GB, free: 86.92 MB / 0.698 GB
Notification: Performance of remove unused functions: time 0.0101/1.258, allocations: 2.286 MB / 1.137 GB, free: 84.69 MB / 0.698 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 4
 * Number of states: 5 (rad1.vol[1].dynBal.U,rad1.vol[2].dynBal.U,rad1.vol[3].dynBal.U,rad1.vol[4].dynBal.U,rad1.vol[5].dynBal.U)
 * 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 (123):
 * Single equations (assignments): 113
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 2
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 2
 * Torn equation systems: 6
 * 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): 2 systems
   {1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 5 systems
   {(1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(5,50)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.001584/1.26, allocations: 467 kB / 1.138 GB, free: 84.28 MB / 0.698 GB
Notification: Performance of simCode: created initialization part: time 0.02334/1.283, allocations: 6.967 MB / 1.144 GB, free: 77.33 MB / 0.698 GB
Notification: Performance of simCode: created event and clocks part: time 1.302e-05/1.283, allocations: 4 kB / 1.144 GB, free: 77.32 MB / 0.698 GB
Notification: Performance of simCode: created simulation system equations: time 0.003111/1.286, allocations: 1.779 MB / 1.146 GB, free: 75.49 MB / 0.698 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01082/1.297, allocations: 1.846 MB / 1.148 GB, free: 73.68 MB / 0.698 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01631/1.314, allocations: 9.302 MB / 1.157 GB, free: 64.36 MB / 0.698 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003344/1.317, allocations: 2.894 MB / 1.16 GB, free: 61.45 MB / 0.698 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001101/1.318, allocations: 239.4 kB / 1.16 GB, free: 61.21 MB / 0.698 GB
Notification: Performance of SimCode: time 1.593e-06/1.318, allocations: 0 / 1.16 GB, free: 61.21 MB / 0.698 GB
Notification: Performance of Templates: time 0.2256/1.544, allocations: 204.6 MB / 1.36 GB, free: 0.5586 MB / 0.8386 GB
make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.makefile
(rm -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe 2>&1)