Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:12 2012 Optimize a model with 108 rows, 235 columns and 235 nonzeros Model has 214 quadratic constraints Presolve time: 1.24s Presolved: 108 rows, 235 columns, 235 nonzeros Variable types: 214 continuous, 21 integer (21 binary) Root relaxation: objective 0.000000e+00, 10 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 54.0000000 - - - 1s 0 0 0.00000 0 16 54.00000 0.00000 100% - 1s 0 0 0.33929 0 21 54.00000 0.33929 99.4% - 1s 0 2 0.34868 0 21 54.00000 0.34868 99.4% - 1s * 24 24 14 51.0000000 7.00000 86.3% 28.2 1s * 25 23 15 49.0000000 7.00000 85.7% 27.2 1s H 46 36 46.0000000 7.07692 84.6% 26.4 1s * 68 49 13 45.0000000 13.33333 70.4% 26.1 1s * 137 101 12 44.0000000 14.00000 68.2% 28.1 1s * 504 164 10 43.0000000 27.01527 37.2% 23.4 1s * 920 137 12 42.0000000 32.00000 23.8% 21.9 1s Cutting planes: Gomory: 1 Explored 1490 nodes (29649 simplex iterations) in 1.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%