Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:31:34 2012 Optimize a model with 201 rows, 460 columns and 460 nonzeros Model has 400 quadratic constraints Presolve time: 2.33s Presolved: 201 rows, 460 columns, 460 nonzeros Variable types: 400 continuous, 60 integer (60 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 94.0000000 - - - 2s 0 0 0.00000 0 3 94.00000 0.00000 100% - 2s 0 0 0.00000 0 58 94.00000 0.00000 100% - 2s 0 0 0.00000 0 57 94.00000 0.00000 100% - 2s 0 2 0.00000 0 57 94.00000 0.00000 100% - 2s H 46 46 55.0000000 5.38780 90.2% 41.8 2s * 49 45 27 54.0000000 5.38780 90.0% 39.4 2s * 558 279 14 49.0000000 12.29136 74.9% 41.5 3s 989 440 38.42424 34 273 49.00000 15.59259 68.2% 48.7 5s 5010 1869 43.00000 31 263 49.00000 30.51515 37.7% 27.0 10s 9314 2703 47.88372 39 264 49.00000 34.21739 30.2% 23.8 15s 13606 2998 44.27778 33 272 49.00000 36.97297 24.5% 22.9 20s 18017 3226 42.63700 33 257 49.00000 39.15385 20.1% 22.2 25s 22569 3128 48.02095 37 252 49.00000 41.22222 15.9% 21.7 30s 27256 2384 46.53191 39 272 49.00000 43.36508 11.5% 21.3 35s Explored 32295 nodes (671543 simplex iterations) in 39.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.900000000005e+01, best bound 4.900000000005e+01, gap 0.0%