Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:45:57 2012 Optimize a model with 157 rows, 364 columns and 364 nonzeros Model has 312 quadratic constraints Presolve time: 1.84s Presolved: 157 rows, 364 columns, 364 nonzeros Variable types: 312 continuous, 52 integer (52 binary) Root relaxation: objective 0.000000e+00, 26 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 73.0000000 - - - 1s 0 0 0.00000 0 4 73.00000 0.00000 100% - 1s 0 0 0.00000 0 49 73.00000 0.00000 100% - 1s 0 0 0.00000 0 46 73.00000 0.00000 100% - 1s 0 2 0.00000 0 46 73.00000 0.00000 100% - 1s * 40 36 23 47.0000000 5.61224 88.1% 39.8 1s H 160 98 42.0000000 7.36842 82.5% 34.2 2s * 200 127 17 41.0000000 7.42857 81.9% 35.8 2s * 234 147 18 40.0000000 7.94444 80.1% 36.3 2s 2405 778 35.07317 35 209 40.00000 22.56522 43.6% 29.1 5s * 3650 1044 40 39.0000000 25.33333 35.0% 24.9 6s 5984 1233 36.96000 35 146 39.00000 29.87500 23.4% 22.4 10s * 6912 1092 38 38.0000000 31.06667 18.2% 22.0 13s H 7228 886 37.0000000 31.66667 14.4% 21.8 13s Explored 8519 nodes (176732 simplex iterations) in 14.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%