Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.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 3.2.3+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false)
Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 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: translateModel(Buildings.Fluid.Movers.Validation.FlowControlled_dp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp")
translateModel(Buildings.Fluid.Movers.Validation.FlowControlled_dp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001246/0.001246, allocations: 101.7 kB / 16.27 MB, free: 6.418 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001254/0.001254, allocations: 189.8 kB / 17.2 MB, free: 5.953 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.427/1.427, allocations: 205.1 MB / 223.1 MB, free: 12.3 MB / 190.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.732/1.732, allocations: 292.3 MB / 0.5495 GB, free: 17.4 MB / 462.1 MB
Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed.
Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed.
Notification: Performance of FrontEnd - loaded program: time 0.00141/0.00141, allocations: 71.89 kB / 0.6722 GB, free: 6.539 MB / 0.545 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.234/0.2355, allocations: 114.6 MB / 0.784 GB, free: 3.863 MB / 0.6544 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Validation.FlowControlled_dp): time 0.7535/0.989, allocations: 323.9 MB / 1.1 GB, free: 6.133 MB / 0.8887 GB
Notification: Performance of NFInst.instExpressions: time 0.0325/1.022, allocations: 22.95 MB / 1.123 GB, free: 15.13 MB / 0.92 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.003825/1.025, allocations: 99.44 kB / 1.123 GB, free: 15.03 MB / 0.92 GB
Notification: Performance of NFTyping.typeComponents: time 0.004468/1.03, allocations: 1.499 MB / 1.124 GB, free: 13.52 MB / 0.92 GB
Notification: Performance of NFTyping.typeBindings: time 0.01167/1.042, allocations: 4.219 MB / 1.128 GB, free: 9.289 MB / 0.92 GB
Notification: Performance of NFTyping.typeClassSections: time 0.00642/1.048, allocations: 2.34 MB / 1.131 GB, free: 6.965 MB / 0.92 GB
Notification: Performance of NFFlatten.flatten: time 0.008721/1.057, allocations: 5.92 MB / 1.136 GB, free: 1.031 MB / 0.92 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.5673/1.624, allocations: 2.163 MB / 1.139 GB, free: 79.69 MB / 0.92 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.007713/1.632, allocations: 3.192 MB / 1.142 GB, free: 79.69 MB / 0.92 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.004276/1.636, allocations: 1.723 MB / 1.143 GB, free: 79.69 MB / 0.92 GB
Notification: Performance of NFPackage.collectConstants: time 0.0007982/1.637, allocations: 221 kB / 1.144 GB, free: 79.69 MB / 0.92 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.01018/1.647, allocations: 3.682 MB / 1.147 GB, free: 79.69 MB / 0.92 GB
Notification: Performance of NFScalarize.scalarize: time 0.002262/1.65, allocations: 0.8786 MB / 1.148 GB, free: 79.69 MB / 0.92 GB
Notification: Performance of NFVerifyModel.verify: time 0.003832/1.654, allocations: 1.333 MB / 1.149 GB, free: 79.69 MB / 0.92 GB
Notification: Performance of NFConvertDAE.convert: time 0.01294/1.666, allocations: 4.718 MB / 1.154 GB, free: 79.58 MB / 0.92 GB
Notification: Performance of FrontEnd - DAE generated: time 7.044e-06/1.667, allocations: 0 / 1.154 GB, free: 79.58 MB / 0.92 GB
Notification: Performance of FrontEnd: time 3.547e-06/1.667, allocations: 0 / 1.154 GB, free: 79.58 MB / 0.92 GB
Notification: Performance of Transformations before backend: time 0.0001814/1.667, allocations: 4.844 kB / 1.154 GB, free: 79.58 MB / 0.92 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 345
 * Number of variables: 345
Notification: Performance of Generate backend data structure: time 0.01166/1.678, allocations: 2.974 MB / 1.157 GB, free: 78.14 MB / 0.92 GB
Notification: Performance of prepare preOptimizeDAE: time 5.103e-05/1.678, allocations: 11.19 kB / 1.157 GB, free: 78.14 MB / 0.92 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006718/1.685, allocations: 0.839 MB / 1.158 GB, free: 78 MB / 0.92 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006317/1.692, allocations: 1.841 MB / 1.16 GB, free: 77.46 MB / 0.92 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005816/1.692, allocations: 168.2 kB / 1.16 GB, free: 77.45 MB / 0.92 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008341/1.693, allocations: 155.2 kB / 1.16 GB, free: 77.45 MB / 0.92 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.005645/1.699, allocations: 1.675 MB / 1.161 GB, free: 77.25 MB / 0.92 GB
Notification: Performance of preOpt findStateOrder (simulation): time 5.163e-05/1.699, allocations: 8.031 kB / 1.161 GB, free: 77.25 MB / 0.92 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001887/1.699, allocations: 56.97 kB / 1.162 GB, free: 77.25 MB / 0.92 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.211e-05/1.699, allocations: 51.48 kB / 1.162 GB, free: 77.25 MB / 0.92 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003814/1.703, allocations: 1.372 MB / 1.163 GB, free: 77.23 MB / 0.92 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 0.01381/1.717, allocations: 7.953 MB / 1.171 GB, free: 73.11 MB / 0.92 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.002285/1.719, allocations: 1.04 MB / 1.172 GB, free: 72.88 MB / 0.92 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.00119/1.72, allocations: 481.8 kB / 1.172 GB, free: 72.88 MB / 0.92 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000233/1.721, allocations: 112.9 kB / 1.172 GB, free: 72.78 MB / 0.92 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.496e-05/1.721, allocations: 41.42 kB / 1.172 GB, free: 72.74 MB / 0.92 GB
Notification: Performance of pre-optimization done (n=73): time 3.928e-06/1.721, allocations: 0 / 1.172 GB, free: 72.74 MB / 0.92 GB
Notification: Performance of matching and sorting (n=73): time 0.004963/1.726, allocations: 1.527 MB / 1.174 GB, free: 72.5 MB / 0.92 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.665e-05/1.726, allocations: 62.67 kB / 1.174 GB, free: 72.44 MB / 0.92 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004576/1.73, allocations: 1.796 MB / 1.176 GB, free: 72.21 MB / 0.92 GB
Notification: Performance of collectPreVariables (initialization): time 0.0002766/1.73, allocations: 47.08 kB / 1.176 GB, free: 72.18 MB / 0.92 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001029/1.732, allocations: 0.9842 MB / 1.177 GB, free: 71.87 MB / 0.92 GB
Notification: Performance of collectInitialBindings (initialization): time 0.000381/1.732, allocations: 260.4 kB / 1.177 GB, free: 71.71 MB / 0.92 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005322/1.732, allocations: 218.2 kB / 1.177 GB, free: 71.68 MB / 0.92 GB
Notification: Performance of setup shared object (initialization): time 9.135e-05/1.733, allocations: 344.6 kB / 1.177 GB, free: 71.38 MB / 0.92 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.001284/1.734, allocations: 456.9 kB / 1.178 GB, free: 71.37 MB / 0.92 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.001542/1.735, allocations: 0.8384 MB / 1.179 GB, free: 70.91 MB / 0.92 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.002793/1.738, allocations: 1.211 MB / 1.18 GB, free: 70.58 MB / 0.92 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.099e-05/1.738, allocations: 3.031 kB / 1.18 GB, free: 70.58 MB / 0.92 GB
Notification: Performance of matching and sorting (n=123) (initialization): time 0.004376/1.743, allocations: 1.462 MB / 1.181 GB, free: 70.44 MB / 0.92 GB
Notification: Performance of prepare postOptimizeDAE: time 3.686e-05/1.743, allocations: 13.31 kB / 1.181 GB, free: 70.44 MB / 0.92 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.28e-05/1.743, allocations: 8.75 kB / 1.181 GB, free: 70.44 MB / 0.92 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0003455/1.743, allocations: 75.88 kB / 1.181 GB, free: 70.43 MB / 0.92 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001342/1.744, allocations: 282.1 kB / 1.182 GB, free: 70.43 MB / 0.92 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007191/1.745, allocations: 1.755 MB / 1.183 GB, free: 68.74 MB / 0.92 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002067/1.747, allocations: 143.7 kB / 1.183 GB, free: 68.68 MB / 0.92 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001727/1.747, allocations: 51.8 kB / 1.184 GB, free: 68.68 MB / 0.92 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00199/1.749, allocations: 0.8224 MB / 1.184 GB, free: 68.6 MB / 0.92 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001155/1.751, allocations: 0.7857 MB / 1.185 GB, free: 68.14 MB / 0.92 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001959/1.753, allocations: 1.12 MB / 1.186 GB, free: 67.8 MB / 0.92 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.618e-05/1.753, allocations: 5.562 kB / 1.186 GB, free: 67.8 MB / 0.92 GB
Notification: Performance of matching and sorting (n=123) (initialization_lambda0): time 0.003301/1.756, allocations: 1.425 MB / 1.188 GB, free: 67.55 MB / 0.92 GB
Notification: Performance of prepare postOptimizeDAE: time 1.909e-05/1.756, allocations: 9.625 kB / 1.188 GB, free: 67.55 MB / 0.92 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.309e-05/1.756, allocations: 7.688 kB / 1.188 GB, free: 67.55 MB / 0.92 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.000154/1.756, allocations: 53.59 kB / 1.188 GB, free: 67.54 MB / 0.92 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000928/1.757, allocations: 243.4 kB / 1.188 GB, free: 67.54 MB / 0.92 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00104/1.758, allocations: 1.643 MB / 1.189 GB, free: 66.05 MB / 0.92 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002066/1.76, allocations: 113.5 kB / 1.19 GB, free: 66.02 MB / 0.92 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001793/1.76, allocations: 44.67 kB / 1.19 GB, free: 66.02 MB / 0.92 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 42
 * 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 (117):
 * Single equations (assignments): 112
 * Array equations: 2
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 2
 * 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): 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): 1 system
   {(1,4)}
Notification: Performance of prepare postOptimizeDAE: time 0.0004762/1.761, allocations: 253.8 kB / 1.19 GB, free: 65.83 MB / 0.92 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007154/1.762, allocations: 193.6 kB / 1.19 GB, free: 65.73 MB / 0.92 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003313/1.765, allocations: 1.18 MB / 1.191 GB, free: 65.54 MB / 0.92 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.959e-06/1.765, allocations: 7.594 kB / 1.191 GB, free: 65.54 MB / 0.92 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.054e-05/1.765, allocations: 7.219 kB / 1.191 GB, free: 65.53 MB / 0.92 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001999/1.767, allocations: 1.008 MB / 1.192 GB, free: 65.24 MB / 0.92 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006915/1.774, allocations: 2.832 MB / 1.195 GB, free: 64.66 MB / 0.92 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.266e-06/1.774, allocations: 0 / 1.195 GB, free: 64.66 MB / 0.92 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001098/1.775, allocations: 220.7 kB / 1.195 GB, free: 64.66 MB / 0.92 GB
Notification: Performance of postOpt tearingSystem (simulation): time 9.183e-05/1.775, allocations: 30 kB / 1.195 GB, free: 64.65 MB / 0.92 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.352e-05/1.775, allocations: 19.95 kB / 1.195 GB, free: 64.65 MB / 0.92 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001262/1.777, allocations: 3.297 MB / 1.198 GB, free: 61.4 MB / 0.92 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.488e-06/1.777, allocations: 2.344 kB / 1.198 GB, free: 61.4 MB / 0.92 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003796/1.78, allocations: 1.746 MB / 1.2 GB, free: 60.98 MB / 0.92 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.001149/1.782, allocations: 364.6 kB / 1.201 GB, free: 60.77 MB / 0.92 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0006478/1.782, allocations: 23.7 kB / 1.201 GB, free: 60.77 MB / 0.92 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001529/1.784, allocations: 60.7 kB / 1.201 GB, free: 60.77 MB / 0.92 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001319/1.784, allocations: 42.95 kB / 1.201 GB, free: 60.77 MB / 0.92 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.669e-05/1.784, allocations: 36.69 kB / 1.201 GB, free: 60.77 MB / 0.92 GB
Notification: Performance of sorting global known variables: time 0.002398/1.786, allocations: 1.216 MB / 1.202 GB, free: 60.62 MB / 0.92 GB
Notification: Performance of sort global known variables: time 2.1e-07/1.786, allocations: 0 / 1.202 GB, free: 60.62 MB / 0.92 GB
Notification: Performance of remove unused functions: time 0.00425/1.791, allocations: 0.9697 MB / 1.203 GB, free: 60.48 MB / 0.92 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 5
 * Number of states: 3 (floMacDyn.vol.dynBal.U,floMacDyn.vol.dynBal.m,floMacDyn.vol.dynBal.mXi[1])
 * 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 (73):
 * Single equations (assignments): 69
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 3
 * 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): 3 systems
   {1, 1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(1,2,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.001232/1.792, allocations: 374 kB / 1.203 GB, free: 60.34 MB / 0.92 GB
Notification: Performance of simCode: created initialization part: time 0.005091/1.797, allocations: 1.845 MB / 1.205 GB, free: 60.18 MB / 0.92 GB
Notification: Performance of simCode: created event and clocks part: time 6.131e-06/1.797, allocations: 1.75 kB / 1.205 GB, free: 60.18 MB / 0.92 GB
Notification: Performance of simCode: created simulation system equations: time 0.001431/1.798, allocations: 0.5967 MB / 1.206 GB, free: 60.05 MB / 0.92 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00603/1.805, allocations: 1.066 MB / 1.207 GB, free: 59.97 MB / 0.92 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007463/1.812, allocations: 3.676 MB / 1.21 GB, free: 58.47 MB / 0.92 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001575/1.814, allocations: 1.562 MB / 1.212 GB, free: 57.72 MB / 0.92 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006879/1.814, allocations: 153.3 kB / 1.212 GB, free: 57.71 MB / 0.92 GB
Notification: Performance of SimCode: time 1.142e-06/1.814, allocations: 0 / 1.212 GB, free: 57.71 MB / 0.92 GB
Notification: Performance of Templates: time 0.06683/1.881, allocations: 67.24 MB / 1.278 GB, free: 2.176 MB / 0.92 GB
make -j1 -f Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.makefile
(rm -f Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe ; mkfifo Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe >> ../files/Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.sim & ./Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp  -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe 2>&1)