Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:37:24 2012 Optimize a model with 170 rows, 416 columns and 416 nonzeros Model has 338 quadratic constraints Presolve time: 1.97s Presolved: 170 rows, 416 columns, 416 nonzeros Variable types: 338 continuous, 78 integer (78 binary) Root relaxation: objective 0.000000e+00, 39 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 - - - 1s 0 0 0.00000 0 3 94.00000 0.00000 100% - 1s 0 0 0.00000 0 73 94.00000 0.00000 100% - 1s 0 0 0.00000 0 65 94.00000 0.00000 100% - 2s 0 2 0.00000 0 65 94.00000 0.00000 100% - 2s H 43 43 41.0000000 2.02667 95.1% 38.8 2s * 45 45 26 40.0000000 2.02667 94.9% 39.3 2s * 85 65 21 35.0000000 4.03279 88.5% 31.6 2s * 156 105 25 34.0000000 4.61842 86.4% 31.7 2s 2023 536 26.23881 36 249 34.00000 19.52381 42.6% 30.3 5s * 2061 500 41 33.0000000 19.53333 40.8% 30.0 5s 4828 670 31.98305 34 245 33.00000 25.35714 23.2% 23.8 10s Explored 7379 nodes (163949 simplex iterations) in 14.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%