Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:13 2012 Optimize a model with 39 rows, 102 columns and 102 nonzeros Model has 76 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 0.44s Presolved: 39 rows, 101 columns, 101 nonzeros Variable types: 76 continuous, 25 integer (24 binary) Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 18.0000000 - - - 0s 0 0 0.00000 0 2 18.00000 0.00000 100% - 0s 0 0 0.00000 0 19 18.00000 0.00000 100% - 0s 0 0 0.00000 0 17 18.00000 0.00000 100% - 0s 0 2 0.00000 0 17 18.00000 0.00000 100% - 0s * 13 13 10 10.0000000 2.93333 70.7% 17.3 0s * 25 15 8 9.0000000 3.00000 66.7% 13.7 0s * 26 14 8 8.0000000 3.00000 62.5% 13.4 0s * 35 12 8 6.0000000 3.00000 50.0% 11.4 0s Cutting planes: Explored 59 nodes (745 simplex iterations) in 0.47 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%