Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic.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) 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(Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic") translateModel(Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.007188/0.007187, allocations: 101.6 kB / 15.73 MB, free: 5.98 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001487/0.001487, allocations: 190.5 kB / 16.67 MB, free: 5.918 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.516/1.516, allocations: 205.1 MB / 222.5 MB, free: 4.508 MB / 174.1 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 0.001164/0.001164, allocations: 50.33 kB / 326.6 MB, free: 14.37 MB / 270.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.105/0.1062, allocations: 46.63 MB / 373.2 MB, free: 1.309 MB / 302.1 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic): time 0.02874/0.135, allocations: 26.79 MB / 400 MB, free: 6.395 MB / 334.1 MB Notification: Performance of NFInst.instExpressions: time 0.0231/0.1581, allocations: 7.965 MB / 407.9 MB, free: 14.4 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.007469/0.1657, allocations: 183.5 kB / 408.1 MB, free: 14.22 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0214/0.1872, allocations: 11.09 MB / 419.2 MB, free: 3.102 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.01131/0.1985, allocations: 3.738 MB / 422.9 MB, free: 15.34 MB / 366.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.006979/0.2056, allocations: 2.594 MB / 425.5 MB, free: 12.75 MB / 366.1 MB Notification: Performance of NFFlatten.flatten: time 0.01715/0.2227, allocations: 10.36 MB / 435.9 MB, free: 2.355 MB / 366.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.02852/0.2513, allocations: 15.8 MB / 451.7 MB, free: 2.441 MB / 382.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.2619/0.5132, allocations: 5.235 MB / 456.9 MB, free: 17.36 MB / 382.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.01291/0.5262, allocations: 6.824 MB / 463.8 MB, free: 17.35 MB / 382.1 MB Notification: Performance of NFPackage.collectConstants: time 0.007344/0.5336, allocations: 1.438 MB / 465.2 MB, free: 17.35 MB / 382.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.01234/0.5459, allocations: 2.718 MB / 467.9 MB, free: 17.35 MB / 382.1 MB Notification: Performance of NFScalarize.scalarize: time 0.01326/0.5593, allocations: 6.05 MB / 474 MB, free: 16.84 MB / 382.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0148/0.5741, allocations: 6.866 MB / 480.8 MB, free: 13.6 MB / 382.1 MB Notification: Performance of NFConvertDAE.convert: time 0.02586/0.6, allocations: 23.02 MB / 0.492 GB, free: 1.098 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 7.314e-06/0.6, allocations: 0 / 0.492 GB, free: 1.098 MB / 382.1 MB Notification: Performance of FrontEnd: time 2.074e-06/0.6001, allocations: 0 / 0.492 GB, free: 1.098 MB / 382.1 MB Notification: Performance of Transformations before backend: time 0.0008541/0.6009, allocations: 0 / 0.492 GB, free: 1.098 MB / 382.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 4012 * Number of variables: 4012 Notification: Performance of Generate backend data structure: time 0.04326/0.6442, allocations: 13.99 MB / 0.5057 GB, free: 7.43 MB / 398.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.391e-05/0.6442, allocations: 12.03 kB / 0.5057 GB, free: 7.418 MB / 398.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01566/0.6599, allocations: 3.069 MB / 0.5087 GB, free: 4.332 MB / 398.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01742/0.6774, allocations: 7.18 MB / 0.5157 GB, free: 13.52 MB / 414.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001028/0.6785, allocations: 0.745 MB / 0.5164 GB, free: 12.85 MB / 414.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.006437/0.6849, allocations: 1.106 MB / 0.5175 GB, free: 11.83 MB / 414.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.08837/0.7733, allocations: 33.88 MB / 0.5506 GB, free: 8.988 MB / 446.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.000812/0.7742, allocations: 88.5 kB / 0.5507 GB, free: 8.941 MB / 446.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.006168/0.7804, allocations: 453.7 kB / 0.5511 GB, free: 8.57 MB / 446.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.008658/0.7891, allocations: 4.553 MB / 0.5556 GB, free: 4.078 MB / 446.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.07776/0.8669, allocations: 31.96 MB / 0.5868 GB, free: 4.48 MB / 478.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.4665/1.333, allocations: 113.6 MB / 0.6977 GB, free: 112.6 MB / 0.5137 GB Notification: Performance of preOpt comSubExp (simulation): time 0.04805/1.382, allocations: 18.71 MB / 0.716 GB, free: 107.7 MB / 0.5137 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.01309/1.395, allocations: 10.02 MB / 0.7258 GB, free: 102.7 MB / 0.5137 GB Notification: Performance of preOpt evalFunc (simulation): time 0.05241/1.447, allocations: 32.24 MB / 0.7572 GB, free: 78.05 MB / 0.5137 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 8.473e-05/1.447, allocations: 86.14 kB / 0.7573 GB, free: 77.96 MB / 0.5137 GB Notification: Performance of pre-optimization done (n=512): time 1.357e-05/1.447, allocations: 4 kB / 0.7573 GB, free: 77.96 MB / 0.5137 GB Notification: Performance of matching and sorting (n=773): time 0.8894/2.337, allocations: 165.9 MB / 0.9193 GB, free: 123.1 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.874e-05/2.337, allocations: 206.2 kB / 0.9195 GB, free: 122.8 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01191/2.349, allocations: 8.002 MB / 0.9273 GB, free: 114.9 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.003681/2.352, allocations: 145.4 kB / 0.9275 GB, free: 114.7 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.004646/2.357, allocations: 6.927 MB / 0.9342 GB, free: 107.8 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.005279/2.362, allocations: 2.737 MB / 0.9369 GB, free: 105.1 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.01168/2.374, allocations: 3.04 MB / 0.9399 GB, free: 102 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 5.896e-05/2.374, allocations: 301.1 kB / 0.9401 GB, free: 101.7 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01701/2.391, allocations: 11.22 MB / 0.9511 GB, free: 90.51 MB / 0.5137 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.02233/2.414, allocations: 17.78 MB / 0.9685 GB, free: 69.68 MB / 0.5137 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.03871/2.452, allocations: 30.22 MB / 0.998 GB, free: 36.33 MB / 0.5137 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.000301/2.453, allocations: 60 kB / 0.998 GB, free: 36.27 MB / 0.5137 GB Notification: Performance of matching and sorting (n=1941) (initialization): time 0.3591/2.812, allocations: 29.52 MB / 1.027 GB, free: 150.1 MB / 0.5137 GB Notification: Performance of prepare postOptimizeDAE: time 0.000293/2.812, allocations: 101.2 kB / 1.027 GB, free: 150.1 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0004463/2.813, allocations: 219.8 kB / 1.027 GB, free: 150.1 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005362/2.813, allocations: 311 kB / 1.027 GB, free: 150.1 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.02414/2.837, allocations: 4.592 MB / 1.032 GB, free: 150.1 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007822/2.838, allocations: 456.9 kB / 1.032 GB, free: 150.1 MB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01666/2.855, allocations: 1.174 MB / 1.034 GB, free: 150.1 MB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.004907/2.86, allocations: 0.7517 MB / 1.034 GB, free: 150.1 MB / 0.5137 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1004 * Number of states: 0 () * Number of discrete variables: 102 (body3.sphereColor[3],body3.sphereColor[2],body3.sphereColor[1],body3.cylinderColor[3],body3.cylinderColor[2],body3.cylinderColor[1],rod4.color[3],rod4.color[2],rod4.color[1],jointRRR3.rodColor[3],jointRRR3.rodColor[2],jointRRR3.rodColor[1],jointRRR3.cylinderColor[3],jointRRR3.cylinderColor[2],jointRRR3.cylinderColor[1],jointRRR3.jointUSR.rod1Color[3],jointRRR3.jointUSR.rod1Color[2],jointRRR3.jointUSR.rod1Color[1],jointRRR3.jointUSR.cylinderColor[3],jointRRR3.jointUSR.cylinderColor[2],jointRRR3.jointUSR.cylinderColor[1],jointRRR3.jointUSR.sphereColor[3],jointRRR3.jointUSR.sphereColor[2],jointRRR3.jointUSR.sphereColor[1],jointRRR3.jointUSR.revoluteColor[3],jointRRR3.jointUSR.revoluteColor[2],jointRRR3.jointUSR.revoluteColor[1],body2.sphereColor[3],body2.sphereColor[2],body2.sphereColor[1],body2.cylinderColor[3],body2.cylinderColor[2],body2.cylinderColor[1],rod3.color[3],rod3.color[2],rod3.color[1],jointRRR2.rodColor[3],jointRRR2.rodColor[2],jointRRR2.rodColor[1],jointRRR2.cylinderColor[3],jointRRR2.cylinderColor[2],jointRRR2.cylinderColor[1],jointRRR2.jointUSR.rod1Color[3],jointRRR2.jointUSR.rod1Color[2],jointRRR2.jointUSR.rod1Color[1],jointRRR2.jointUSR.cylinderColor[3],jointRRR2.jointUSR.cylinderColor[2],jointRRR2.jointUSR.cylinderColor[1],jointRRR2.jointUSR.sphereColor[3],jointRRR2.jointUSR.sphereColor[2],jointRRR2.jointUSR.sphereColor[1],jointRRR2.jointUSR.revoluteColor[3],jointRRR2.jointUSR.revoluteColor[2],jointRRR2.jointUSR.revoluteColor[1],body1.sphereColor[3],body1.sphereColor[2],body1.sphereColor[1],body1.cylinderColor[3],body1.cylinderColor[2],body1.cylinderColor[1],rod2.color[3],rod2.color[2],rod2.color[1],rod1.color[3],rod1.color[2],rod1.color[1],rev.cylinderColor[3],rev.cylinderColor[2],rev.cylinderColor[1],jointRRR1.rodColor[3],jointRRR1.rodColor[2],jointRRR1.rodColor[1],jointRRR1.cylinderColor[3],jointRRR1.cylinderColor[2],jointRRR1.cylinderColor[1],jointRRR3.jointUSR.revolute.positiveBranch,jointRRR2.jointUSR.revolute.positiveBranch,jointRRR1.jointUSR.revolute.positiveBranch,jointRRR1.jointUSR.rod1Color[3],jointRRR1.jointUSR.rod1Color[2],jointRRR1.jointUSR.rod1Color[1],jointRRR1.jointUSR.cylinderColor[3],jointRRR1.jointUSR.cylinderColor[2],jointRRR1.jointUSR.cylinderColor[1],jointRRR1.jointUSR.sphereColor[3],jointRRR1.jointUSR.sphereColor[2],jointRRR1.jointUSR.sphereColor[1],jointRRR1.jointUSR.revoluteColor[3],jointRRR1.jointUSR.revoluteColor[2],jointRRR1.jointUSR.revoluteColor[1],world.gravityArrowColor[3],world.gravityArrowColor[2],world.gravityArrowColor[1],world.axisColor_x[3],world.axisColor_x[2],world.axisColor_x[1],world.groundColor[3],world.groundColor[2],world.groundColor[1],world.gravitySphereColor[3],world.gravitySphereColor[2],world.gravitySphereColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1905): * Single equations (assignments): 1896 * Array equations: 9 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.01779/2.878, allocations: 5.495 MB / 1.04 GB, free: 148.8 MB / 0.5137 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.003981/2.882, allocations: 0.8025 MB / 1.04 GB, free: 148.8 MB / 0.5137 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.04354/2.925, allocations: 21.34 MB / 1.061 GB, free: 139 MB / 0.5137 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001052/2.925, allocations: 82.73 kB / 1.061 GB, free: 139 MB / 0.5137 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.767e-05/2.925, allocations: 0.6875 kB / 1.061 GB, free: 139 MB / 0.5137 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0002209/2.926, allocations: 38.62 kB / 1.061 GB, free: 139 MB / 0.5137 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.08786/3.013, allocations: 45.31 MB / 1.106 GB, free: 109.7 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.102e-05/3.014, allocations: 4 kB / 1.106 GB, free: 109.7 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01467/3.028, allocations: 2.505 MB / 1.108 GB, free: 107.3 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001592/3.028, allocations: 32 kB / 1.108 GB, free: 107.3 MB / 0.5137 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.002596/3.031, allocations: 136 kB / 1.108 GB, free: 107.1 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0001352/3.031, allocations: 39.45 kB / 1.108 GB, free: 107.1 MB / 0.5137 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.695e-06/3.031, allocations: 14.28 kB / 1.108 GB, free: 107.1 MB / 0.5137 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.04988/3.081, allocations: 35.78 MB / 1.143 GB, free: 71.54 MB / 0.5137 GB Notification: Performance of postOpt removeConstants (simulation): time 0.007402/3.089, allocations: 2.901 MB / 1.146 GB, free: 68.88 MB / 0.5137 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.003382/3.092, allocations: 128 kB / 1.146 GB, free: 68.75 MB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.008621/3.101, allocations: 0.7761 MB / 1.147 GB, free: 67.97 MB / 0.5137 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.002329/3.103, allocations: 427.6 kB / 1.147 GB, free: 67.56 MB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.001563/3.105, allocations: 196 kB / 1.148 GB, free: 67.37 MB / 0.5137 GB Notification: Performance of sorting global known variables: time 0.01023/3.115, allocations: 5.002 MB / 1.152 GB, free: 62.41 MB / 0.5137 GB Notification: Performance of sort global known variables: time 9.32e-07/3.115, allocations: 0 / 1.152 GB, free: 62.41 MB / 0.5137 GB Notification: Performance of remove unused functions: time 0.01949/3.134, allocations: 3.284 MB / 1.156 GB, free: 59.15 MB / 0.5137 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 30 * Number of states: 2 (rev.phi,rev.w) * 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 (757): * Single equations (assignments): 754 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.003191/3.138, allocations: 444.6 kB / 1.156 GB, free: 58.8 MB / 0.5137 GB Notification: Performance of simCode: created initialization part: time 0.03796/3.176, allocations: 25.08 MB / 1.181 GB, free: 33.89 MB / 0.5137 GB Notification: Performance of simCode: created event and clocks part: time 1.518e-05/3.176, allocations: 0 / 1.181 GB, free: 33.89 MB / 0.5137 GB Notification: Performance of simCode: created simulation system equations: time 0.01493/3.191, allocations: 10.66 MB / 1.191 GB, free: 23.23 MB / 0.5137 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0117/3.202, allocations: 1.012 MB / 1.192 GB, free: 22.26 MB / 0.5137 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.3448/3.547, allocations: 34.07 MB / 1.225 GB, free: 166.9 MB / 0.5294 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.02783/3.575, allocations: 8.113 MB / 1.233 GB, free: 165.9 MB / 0.5294 GB Notification: Performance of simCode: alias equations: time 0.02458/3.6, allocations: 5.265 MB / 1.238 GB, free: 165.8 MB / 0.5294 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01058/3.61, allocations: 0.6184 MB / 1.239 GB, free: 165.8 MB / 0.5294 GB Notification: Performance of SimCode: time 1.713e-06/3.61, allocations: 0 / 1.239 GB, free: 165.8 MB / 0.5294 GB Notification: Performance of Templates: time 0.2277/3.838, allocations: 128.6 MB / 1.364 GB, free: 58.2 MB / 0.5294 GB make -j1 -f Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic.makefile (rm -f Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic.pipe ; mkfifo Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic.pipe ; head -c 1048576 < Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic.pipe >> ../files/Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic.sim & ./Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic -abortSlowSimulation -alarm=480 -lv LOG_STATS > Modelica_3.1_Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic.pipe 2>&1)