Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:04:20 2012 Optimize a model with 127 rows, 301 columns and 301 nonzeros Model has 252 quadratic constraints Presolve time: 1.48s Presolved: 127 rows, 301 columns, 301 nonzeros Variable types: 252 continuous, 49 integer (49 binary) Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 67.0000000 - - - 1s 0 0 0.00000 0 24 67.00000 0.00000 100% - 1s 0 0 0.00000 0 25 67.00000 0.00000 100% - 1s 0 0 0.00000 0 24 67.00000 0.00000 100% - 1s 0 2 0.00000 0 24 67.00000 0.00000 100% - 1s * 29 29 20 38.0000000 6.52941 82.8% 36.8 1s * 58 48 19 34.0000000 6.85714 79.8% 31.0 1s * 79 57 13 31.0000000 8.54286 72.4% 31.1 1s * 469 146 16 30.0000000 17.33333 42.2% 25.6 1s * 860 105 12 29.0000000 21.60000 25.5% 26.8 2s Cutting planes: Explored 1304 nodes (31965 simplex iterations) in 2.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%