Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:40:31 2012 Optimize a model with 199 rows, 425 columns and 425 nonzeros Model has 396 quadratic constraints Presolve time: 2.31s Presolved: 199 rows, 425 columns, 425 nonzeros Variable types: 396 continuous, 29 integer (29 binary) Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 107.0000000 - - - 2s 0 0 0.00000 0 28 107.00000 0.00000 100% - 2s 0 0 0.48030 0 29 107.00000 0.48030 100% - 2s 0 2 0.54396 0 29 107.00000 0.54396 99.5% - 2s * 34 34 18 89.0000000 8.07692 90.9% 46.3 2s * 37 33 20 88.0000000 8.07692 90.8% 44.1 2s * 68 56 21 87.0000000 8.08696 90.7% 43.6 2s * 93 75 16 84.0000000 13.73913 83.6% 46.2 2s H 251 191 81.0000000 16.60000 79.5% 46.8 2s * 375 235 18 79.0000000 23.00000 70.9% 45.2 2s 1168 487 49.86957 36 265 79.00000 34.66667 56.1% 46.5 5s 5879 1656 77.11765 40 233 79.00000 53.75000 32.0% 27.5 10s * 6843 1776 47 78.0000000 55.66667 28.6% 26.7 10s 9068 2044 69.55556 38 239 78.00000 59.28571 24.0% 25.2 16s 11031 2167 69.76809 43 247 78.00000 61.92969 20.6% 24.3 20s 16074 1834 72.44490 35 255 78.00000 66.90000 14.2% 23.3 25s *18669 1228 38 77.0000000 69.66667 9.52% 23.0 27s Explored 20618 nodes (461445 simplex iterations) in 29.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.700000000000e+01, best bound 7.700000000000e+01, gap 0.0%