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 47 quadratic objective terms Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 48 rows, 83 columns, 177 nonzeros Variable types: 0 continuous, 83 integer (82 binary) Found heuristic solution: objective 14.0000000 Root relaxation: objective 0.000000e+00, 59 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 12 14.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 10.00000 0.00000 100% - 0s 0 0 0.00000 0 15 10.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 9.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s 0 0 0.00000 0 11 7.00000 0.00000 100% - 0s 0 2 0.00000 0 11 7.00000 0.00000 100% - 0s * 126 43 14 6.0000000 0.00000 100% 3.2 0s * 197 20 6 5.0000000 2.00000 60.0% 7.6 0s Cutting planes: Cover: 91 Explored 218 nodes (2246 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%