Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:11 2012 Optimize a model with 70 rows, 186 columns and 186 nonzeros Model has 138 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.80s Presolved: 70 rows, 182 columns, 182 nonzeros Variable types: 138 continuous, 44 integer (43 binary) Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 31.0000000 - - - 0s 0 0 0.00000 0 33 31.00000 0.00000 100% - 0s 0 0 0.21329 0 41 31.00000 0.21329 99.3% - 0s 0 0 0.21799 0 41 31.00000 0.21799 99.3% - 0s 0 2 0.30805 0 41 31.00000 0.30805 99.0% - 0s * 13 13 9 11.0000000 2.83394 74.2% 20.9 0s H 65 26 10.0000000 4.60606 53.9% 13.2 0s Cutting planes: Gomory: 4 Explored 205 nodes (2827 simplex iterations) in 0.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.999999999983e+00, best bound 9.999999999983e+00, gap 0.0%