Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:11:12 2012 Optimize a model with 168 rows, 392 columns and 392 nonzeros Model has 334 quadratic constraints Presolve time: 1.94s Presolved: 168 rows, 392 columns, 392 nonzeros Variable types: 334 continuous, 58 integer (58 binary) Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 89.0000000 - - - 1s 0 0 0.00000 0 42 89.00000 0.00000 100% - 1s 0 0 0.31889 0 51 89.00000 0.31889 100% - 1s 0 2 0.32940 0 51 89.00000 0.32940 100% - 1s * 42 42 24 41.0000000 2.61053 93.6% 36.8 2s 1976 660 39.47283 38 237 41.00000 22.61111 44.9% 31.3 5s H 5228 1214 38.0000000 28.80272 24.2% 22.3 7s 7329 991 cutoff 39 38.00000 32.11364 15.5% 20.8 10s 7854 779 36.97551 35 240 38.00000 33.34091 12.3% 20.8 15s Explored 9010 nodes (178580 simplex iterations) in 16.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%