Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:06 2012 Optimize a model with 1 rows, 25 columns and 25 nonzeros Model has 34 quadratic objective terms Presolve time: 0.00s Presolved: 35 rows, 59 columns, 127 nonzeros Variable types: 0 continuous, 59 integer (59 binary) Found heuristic solution: objective 17.0000000 Root relaxation: objective 0.000000e+00, 42 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 17.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 15 12.00000 0.00000 100% - 0s 0 0 0.00000 0 8 12.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 7.00000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s 0 0 0.00000 0 14 7.00000 0.00000 100% - 0s 0 0 0.00000 0 14 7.00000 0.00000 100% - 0s 0 2 0.00000 0 7 7.00000 0.00000 100% - 0s * 57 29 15 6.0000000 0.00000 100% 3.6 0s * 93 26 5 5.0000000 1.00000 80.0% 6.3 0s Cutting planes: Cover: 64 Explored 122 nodes (974 simplex iterations) in 0.02 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%