Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:58 2012 Optimize a model with 49 rows, 129 columns and 129 nonzeros Model has 96 quadratic constraints Presolve time: 0.56s Presolved: 49 rows, 129 columns, 129 nonzeros Variable types: 96 continuous, 33 integer (33 binary) Root relaxation: objective 0.000000e+00, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 23.0000000 - - - 0s 0 0 0.00000 0 4 23.00000 0.00000 100% - 0s 0 0 0.00000 0 25 23.00000 0.00000 100% - 0s 0 0 0.00000 0 20 23.00000 0.00000 100% - 0s 0 2 0.00000 0 20 23.00000 0.00000 100% - 0s * 10 10 7 8.0000000 2.95652 63.0% 21.3 0s * 53 15 5 7.0000000 3.66667 47.6% 13.0 0s Cutting planes: Explored 75 nodes (1052 simplex iterations) in 0.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%