Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:19:24 2012 Optimize a model with 262 rows, 749 columns and 749 nonzeros Model has 522 quadratic constraints Presolve removed 0 rows and 16 columns Presolve time: 3.04s Presolved: 262 rows, 733 columns, 733 nonzeros Variable types: 522 continuous, 211 integer (210 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 112.0000000 - - - 3s 0 0 0.00000 0 156 112.00000 0.00000 100% - 3s 0 0 0.16805 0 200 112.00000 0.16805 100% - 3s 0 2 0.16945 0 200 112.00000 0.16945 100% - 3s * 36 32 20 16.0000000 1.35821 91.5% 39.8 3s * 82 64 31 15.0000000 1.39130 90.7% 30.5 3s Cutting planes: Gomory: 3 Explored 1228 nodes (37669 simplex iterations) in 4.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%