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 0.001311/0.001311, allocations: 115.3 kB / 15.34 MB, free: 0.5156 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001397/0.001397, allocations: 190.7 kB / 16.25 MB, free: 6.625 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.501/1.501, allocations: 205.1 MB / 222.1 MB, free: 4.707 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 0.001403/0.001403, allocations: 55.92 kB / 278.2 MB, free: 12.68 MB / 238.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2778/0.2792, allocations: 46.63 MB / 324.9 MB, free: 1.945 MB / 254.1 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.MultiBody.Examples.Loops.PlanarLoops_analytic): time 0.1002/0.3795, allocations: 110.6 MB / 435.4 MB, free: 5.141 MB / 366.1 MB Notification: Performance of NFInst.instExpressions: time 0.3573/0.7368, allocations: 22.1 MB / 457.5 MB, free: 424 kB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.02848/0.7653, allocations: 482.2 kB / 458 MB, free: 424 kB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.01856/0.7839, allocations: 10.76 MB / 468.7 MB, free: 268 kB / 382.1 MB Notification: Performance of NFTyping.typeBindings: time 0.01012/0.7941, allocations: 3.354 MB / 472.1 MB, free: 52 kB / 382.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.005489/0.7996, allocations: 2.446 MB / 474.5 MB, free: 0 / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.0148/0.8144, allocations: 10.39 MB / 484.9 MB, free: 15.95 MB / 398.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.02396/0.8384, allocations: 16.56 MB / 0.4897 GB, free: 10.88 MB / 398.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.01314/0.8516, allocations: 5.356 MB / 0.495 GB, free: 7.316 MB / 398.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0127/0.8644, allocations: 7.425 MB / 0.5022 GB, free: 0.5625 MB / 398.1 MB Notification: Performance of NFPackage.collectConstants: time 0.005219/0.8696, allocations: 1.434 MB / 0.5036 GB, free: 15.12 MB / 414.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.008053/0.8777, allocations: 2.737 MB / 0.5063 GB, free: 12.51 MB / 414.1 MB Notification: Performance of NFScalarize.scalarize: time 0.008889/0.8866, allocations: 6.042 MB / 0.5122 GB, free: 6.504 MB / 414.1 MB Notification: Performance of NFVerifyModel.verify: time 0.01471/0.9014, allocations: 6.906 MB / 0.5189 GB, free: 15.61 MB / 430.1 MB Notification: Performance of NFConvertDAE.convert: time 0.02983/0.9312, allocations: 22.61 MB / 0.541 GB, free: 9.422 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.229e-06/0.9313, allocations: 0 / 0.541 GB, free: 9.422 MB / 446.1 MB Notification: Performance of FrontEnd: time 1.933e-06/0.9313, allocations: 0 / 0.541 GB, free: 9.422 MB / 446.1 MB Notification: Performance of Transformations before backend: time 0.0008086/0.9321, allocations: 3.984 kB / 0.541 GB, free: 9.418 MB / 446.1 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 0.04572/0.9778, allocations: 14 MB / 0.5547 GB, free: 11.54 MB / 462.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.203e-05/0.9779, allocations: 8.031 kB / 0.5547 GB, free: 11.53 MB / 462.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01485/0.9928, allocations: 3.054 MB / 0.5577 GB, free: 8.457 MB / 462.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01912/1.012, allocations: 7.048 MB / 0.5646 GB, free: 1.777 MB / 462.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001053/1.013, allocations: 0.7453 MB / 0.5653 GB, free: 1.105 MB / 462.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.006627/1.02, allocations: 1.104 MB / 0.5664 GB, free: 84 kB / 462.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.08886/1.109, allocations: 33.89 MB / 0.5995 GB, free: 13.24 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0006689/1.109, allocations: 81.44 kB / 0.5995 GB, free: 13.2 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.005063/1.114, allocations: 451.7 kB / 0.6 GB, free: 12.83 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.007819/1.122, allocations: 4.554 MB / 0.6044 GB, free: 8.332 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.4266/1.549, allocations: 31.96 MB / 0.6356 GB, free: 224.5 MB / 0.5138 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.1385/1.687, allocations: 114.2 MB / 0.7471 GB, free: 122.5 MB / 0.5138 GB Notification: Performance of preOpt comSubExp (simulation): time 0.04775/1.735, allocations: 18.71 MB / 0.7654 GB, free: 103.6 MB / 0.5138 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.01121/1.746, allocations: 10.02 MB / 0.7752 GB, free: 93.61 MB / 0.5138 GB Notification: Performance of preOpt evalFunc (simulation): time 0.04482/1.791, allocations: 32.24 MB / 0.8067 GB, free: 60.41 MB / 0.5138 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.217e-05/1.791, allocations: 86.16 kB / 0.8068 GB, free: 60.32 MB / 0.5138 GB Notification: Performance of pre-optimization done (n=512): time 8.907e-06/1.791, allocations: 0 / 0.8068 GB, free: 60.32 MB / 0.5138 GB Notification: Performance of matching and sorting (n=773): time 0.7904/2.582, allocations: 165.9 MB / 0.9688 GB, free: 143.9 MB / 0.5138 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.419e-05/2.582, allocations: 206.2 kB / 0.969 GB, free: 143.6 MB / 0.5138 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01048/2.592, allocations: 7.987 MB / 0.9768 GB, free: 135.7 MB / 0.5138 GB Notification: Performance of collectPreVariables (initialization): time 0.002906/2.595, allocations: 149.7 kB / 0.9769 GB, free: 135.5 MB / 0.5138 GB Notification: Performance of collectInitialEqns (initialization): time 0.003878/2.599, allocations: 6.934 MB / 0.9837 GB, free: 128.6 MB / 0.5138 GB Notification: Performance of collectInitialBindings (initialization): time 0.004687/2.604, allocations: 2.73 MB / 0.9863 GB, free: 125.9 MB / 0.5138 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.006926/2.611, allocations: 3.035 MB / 0.9893 GB, free: 122.8 MB / 0.5138 GB Notification: Performance of setup shared object (initialization): time 4.601e-05/2.611, allocations: 305.1 kB / 0.9896 GB, free: 122.5 MB / 0.5138 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01517/2.626, allocations: 11.22 MB / 1.001 GB, free: 111.3 MB / 0.5138 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01963/2.646, allocations: 17.78 MB / 1.018 GB, free: 90.46 MB / 0.5138 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.03765/2.684, allocations: 30.23 MB / 1.047 GB, free: 57.11 MB / 0.5138 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0002044/2.684, allocations: 68 kB / 1.048 GB, free: 57.04 MB / 0.5138 GB Notification: Performance of matching and sorting (n=1941) (initialization): time 0.3092/2.993, allocations: 29.51 MB / 1.076 GB, free: 190.9 MB / 0.5138 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001949/2.993, allocations: 101.8 kB / 1.076 GB, free: 190.9 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0004044/2.994, allocations: 220.3 kB / 1.077 GB, free: 190.9 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003758/2.994, allocations: 309.5 kB / 1.077 GB, free: 190.9 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.02142/3.016, allocations: 4.59 MB / 1.081 GB, free: 190.8 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006258/3.016, allocations: 447.7 kB / 1.082 GB, free: 190.8 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01589/3.032, allocations: 1.183 MB / 1.083 GB, free: 190.5 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.004107/3.036, allocations: 0.744 MB / 1.084 GB, free: 190.4 MB / 0.5138 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 0.01495/3.051, allocations: 5.5 MB / 1.089 GB, free: 188.1 MB / 0.5138 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.003432/3.055, allocations: 0.8052 MB / 1.09 GB, free: 188.1 MB / 0.5138 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.04169/3.096, allocations: 21.35 MB / 1.111 GB, free: 178.3 MB / 0.5138 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001028/3.097, allocations: 80.17 kB / 1.111 GB, free: 178.3 MB / 0.5138 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.364e-05/3.097, allocations: 3.688 kB / 1.111 GB, free: 178.3 MB / 0.5138 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0002014/3.097, allocations: 35.25 kB / 1.111 GB, free: 178.3 MB / 0.5138 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.09287/3.19, allocations: 45.93 MB / 1.156 GB, free: 142.5 MB / 0.5138 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.08e-05/3.19, allocations: 8 kB / 1.156 GB, free: 142.5 MB / 0.5138 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01468/3.204, allocations: 2.51 MB / 1.158 GB, free: 140 MB / 0.5138 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001311/3.205, allocations: 32 kB / 1.158 GB, free: 140 MB / 0.5138 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.002705/3.207, allocations: 144 kB / 1.158 GB, free: 139.9 MB / 0.5138 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.000108/3.207, allocations: 35 kB / 1.158 GB, free: 139.8 MB / 0.5138 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.777e-06/3.208, allocations: 10.91 kB / 1.158 GB, free: 139.8 MB / 0.5138 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.05119/3.259, allocations: 35.75 MB / 1.193 GB, free: 104.3 MB / 0.5138 GB Notification: Performance of postOpt removeConstants (simulation): time 0.008776/3.268, allocations: 2.895 MB / 1.196 GB, free: 101.8 MB / 0.5138 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.004086/3.272, allocations: 132 kB / 1.196 GB, free: 101.7 MB / 0.5138 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.009453/3.281, allocations: 0.7781 MB / 1.197 GB, free: 100.9 MB / 0.5138 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.003129/3.284, allocations: 422.4 kB / 1.197 GB, free: 100.5 MB / 0.5138 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.002233/3.287, allocations: 196 kB / 1.198 GB, free: 100.3 MB / 0.5138 GB Notification: Performance of sorting global known variables: time 0.01025/3.297, allocations: 5.003 MB / 1.202 GB, free: 95.35 MB / 0.5138 GB Notification: Performance of sort global known variables: time 1.412e-06/3.297, allocations: 0 / 1.202 GB, free: 95.35 MB / 0.5138 GB Notification: Performance of remove unused functions: time 0.01747/3.314, allocations: 3.281 MB / 1.206 GB, free: 92.09 MB / 0.5138 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 0.003309/3.318, allocations: 445.5 kB / 1.206 GB, free: 91.74 MB / 0.5138 GB Notification: Performance of simCode: created initialization part: time 0.09781/3.415, allocations: 54.42 MB / 1.259 GB, free: 37.56 MB / 0.5138 GB Notification: Performance of simCode: created event and clocks part: time 1.831e-05/3.416, allocations: 0 / 1.259 GB, free: 37.56 MB / 0.5138 GB Notification: Performance of simCode: created simulation system equations: time 0.2743/3.69, allocations: 10.66 MB / 1.27 GB, free: 204.8 MB / 0.5138 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01313/3.703, allocations: 1.007 MB / 1.271 GB, free: 204.3 MB / 0.5138 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.07258/3.776, allocations: 40.25 MB / 1.31 GB, free: 182.8 MB / 0.5138 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01923/3.795, allocations: 8.102 MB / 1.318 GB, free: 176.7 MB / 0.5138 GB Notification: Performance of simCode: alias equations: time 0.02447/3.819, allocations: 5.265 MB / 1.323 GB, free: 173 MB / 0.5138 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01039/3.83, allocations: 0.6177 MB / 1.324 GB, free: 172.4 MB / 0.5138 GB Notification: Performance of SimCode: time 1.663e-06/3.83, allocations: 0 / 1.324 GB, free: 172.4 MB / 0.5138 GB Notification: Performance of Templates: time 0.4808/4.311, allocations: 137.1 MB / 1.457 GB, free: 198.5 MB / 0.5138 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)