Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:06 2012 Optimize a model with 49 rows, 136 columns and 136 nonzeros Model has 96 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.56s Presolved: 49 rows, 132 columns, 132 nonzeros Variable types: 96 continuous, 36 integer (35 binary) 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 H 0 0 25.0000000 - - - 0s 0 0 0.00000 0 9 25.00000 0.00000 100% - 0s 0 0 0.00000 0 21 25.00000 0.00000 100% - 0s 0 0 0.00000 0 29 25.00000 0.00000 100% - 0s 0 2 0.00000 0 29 25.00000 0.00000 100% - 0s * 18 18 13 7.0000000 2.27273 67.5% 17.4 0s H 38 16 6.0000000 2.70833 54.9% 12.5 0s Cutting planes: Explored 89 nodes (1358 simplex iterations) in 0.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.999999999940e+00, best bound 5.999999999940e+00, gap 0.0%