Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:48 2012 Optimize a model with 62 rows, 138 columns and 138 nonzeros Model has 122 quadratic constraints Presolve time: 0.71s Presolved: 62 rows, 138 columns, 138 nonzeros Variable types: 122 continuous, 16 integer (16 binary) Root relaxation: objective 0.000000e+00, 8 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 36.0000000 - - - 0s 0 0 0.00000 0 14 36.00000 0.00000 100% - 0s 0 0 0.42857 0 16 36.00000 0.42857 98.8% - 0s 0 0 0.42857 0 16 36.00000 0.42857 98.8% - 0s 0 2 0.64835 0 16 36.00000 0.64835 98.2% - 0s * 19 19 12 25.0000000 4.58929 81.6% 19.3 0s * 185 52 11 23.0000000 14.22222 38.2% 15.2 0s Cutting planes: Gomory: 1 Explored 307 nodes (4155 simplex iterations) in 0.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%