Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:02 2012 Optimize a model with 1 rows, 24 columns and 24 nonzeros Model has 32 quadratic objective terms Presolve time: 0.00s Presolved: 33 rows, 56 columns, 120 nonzeros Variable types: 0 continuous, 56 integer (56 binary) Found heuristic solution: objective 17.0000000 Found heuristic solution: objective 11.0000000 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 13 11.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 10.00000 0.00000 100% - 0s 0 0 0.00000 0 11 10.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 2 0.00000 0 11 9.00000 0.00000 100% - 0s H 23 15 8.0000000 0.00000 100% 3.1 0s H 26 18 7.0000000 0.00000 100% 3.5 0s * 36 24 12 6.0000000 0.00000 100% 3.2 0s * 77 24 7 5.0000000 0.00000 100% 5.0 0s Cutting planes: Cover: 56 Explored 106 nodes (800 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%