Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:35 2012 Optimize a model with 1 rows, 34 columns and 34 nonzeros Model has 32 quadratic objective terms Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 33 rows, 62 columns, 126 nonzeros Variable types: 0 continuous, 62 integer (61 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 0.000000e+00, 41 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 10 7.00000 0.00000 100% - 0s 0 0 0.00000 0 11 7.00000 0.00000 100% - 0s 0 0 0.00000 0 6 7.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 5.00000 0.00000 100% - 0s 0 0 0.00000 0 7 5.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 2 0.00000 0 7 4.00000 0.00000 100% - 0s * 17 12 9 3.0000000 0.00000 100% 3.0 0s Cutting planes: Cover: 51 Explored 78 nodes (635 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%