Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:40 2012 Optimize a model with 69 rows, 181 columns and 181 nonzeros Model has 136 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 0.80s Presolved: 69 rows, 180 columns, 180 nonzeros Variable types: 136 continuous, 44 integer (43 binary) Root relaxation: objective 0.000000e+00, 22 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 41.0000000 - - - 0s 0 0 0.00000 0 25 41.00000 0.00000 100% - 0s 0 0 0.09091 0 42 41.00000 0.09091 100% - 0s 0 2 0.14631 0 42 41.00000 0.14631 100% - 0s * 11 11 6 8.0000000 2.04878 74.4% 22.8 0s Cutting planes: Gomory: 2 Explored 47 nodes (1510 simplex iterations) in 0.84 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%