Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:13 2012 Optimize a model with 1 rows, 35 columns and 35 nonzeros Model has 57 quadratic objective terms Presolve time: 0.00s Presolved: 58 rows, 92 columns, 206 nonzeros Variable types: 0 continuous, 92 integer (92 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 77 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 14 21.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 14.00000 0.00000 100% - 0s 0 0 0.00000 0 15 14.00000 0.00000 100% - 0s 0 0 0.00000 0 21 14.00000 0.00000 100% - 0s 0 0 0.00000 0 21 14.00000 0.00000 100% - 0s 0 2 0.00000 0 17 14.00000 0.00000 100% - 0s H 47 36 13.0000000 0.00000 100% 3.6 0s * 59 37 19 12.0000000 0.00000 100% 3.5 0s * 127 55 9 11.0000000 1.00000 90.9% 7.1 0s Cutting planes: Cover: 107 Explored 244 nodes (3067 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%