Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:06 2012 Optimize a model with 1 rows, 48 columns and 48 nonzeros Model has 80 quadratic objective terms Presolve time: 0.00s Presolved: 81 rows, 128 columns, 288 nonzeros Variable types: 0 continuous, 128 integer (128 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 0.000000e+00, 108 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 32 34.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.00000 0 56 27.00000 0.00000 100% - 0s 0 0 0.00000 0 24 27.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 2 0.00000 0 24 24.00000 0.00000 100% - 0s H 7 7 22.0000000 0.00000 100% 1.3 0s H 57 43 18.0000000 0.00000 100% 2.2 0s H 132 85 15.0000000 0.00000 100% 4.0 0s H 190 79 10.0000000 0.00000 100% 6.4 0s Cutting planes: Cover: 148 Explored 306 nodes (6433 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%