Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:31 2012 Optimize a model with 45 rows, 117 columns and 117 nonzeros Model has 88 quadratic constraints Presolve time: 0.51s Presolved: 45 rows, 117 columns, 117 nonzeros Variable types: 88 continuous, 29 integer (29 binary) Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 20.0000000 - - - 0s 0 0 0.00000 0 18 20.00000 0.00000 100% - 0s 0 0 0.18750 0 28 20.00000 0.18750 99.1% - 0s 0 2 0.22059 0 28 20.00000 0.22059 98.9% - 0s * 10 10 8 10.0000000 1.16667 88.3% 17.4 0s * 34 17 9 9.0000000 4.66667 48.1% 12.4 0s * 89 10 7 8.0000000 5.47059 31.6% 10.1 0s Cutting planes: Gomory: 1 Explored 108 nodes (1262 simplex iterations) in 0.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%