Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:05 2012 Optimize a model with 1 rows, 40 columns and 40 nonzeros Model has 54 quadratic objective terms Presolve time: 0.00s Presolved: 55 rows, 94 columns, 202 nonzeros Variable types: 0 continuous, 94 integer (94 binary) Found heuristic solution: objective 20.0000000 Root relaxation: objective 0.000000e+00, 75 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 11 20.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 11.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 34 10.00000 0.00000 100% - 0s 0 0 0.00000 0 14 10.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 8.00000 0.00000 100% - 0s 0 0 0.00000 0 13 8.00000 0.00000 100% - 0s 0 0 0.00000 0 13 8.00000 0.00000 100% - 0s 0 2 0.00000 0 13 8.00000 0.00000 100% - 0s * 118 38 13 7.0000000 0.00000 100% 8.4 0s * 140 17 6 6.0000000 3.00000 50.0% 11.3 0s Cutting planes: Cover: 100 MIR: 3 Zero half: 3 Explored 158 nodes (2112 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%