Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:09 2012 Optimize a model with 1 rows, 9 columns and 9 nonzeros Model has 18 quadratic objective terms Presolve time: 0.00s Presolved: 19 rows, 27 columns, 63 nonzeros Variable types: 0 continuous, 27 integer (27 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 0.000000e+00, 20 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 9 9.00000 0.00000 100% - 0s 0 0 0.00000 0 8 9.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 8.00000 0.00000 100% - 0s 0 0 0.00000 0 9 8.00000 0.00000 100% - 0s 0 2 0.00000 0 9 8.00000 0.00000 100% - 0s * 21 7 6 7.0000000 0.00000 100% 3.7 0s * 36 3 5 6.0000000 4.00000 33.3% 4.1 0s Cutting planes: Gomory: 2 Cover: 28 Explored 40 nodes (202 simplex iterations) in 0.01 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%