Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:16 2012 Optimize a model with 42 rows, 109 columns and 109 nonzeros Model has 82 quadratic constraints Presolve time: 0.48s Presolved: 42 rows, 109 columns, 109 nonzeros Variable types: 82 continuous, 27 integer (27 binary) Root relaxation: objective 0.000000e+00, 13 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 25.0000000 - - - 0s 0 0 0.00000 0 10 25.00000 0.00000 100% - 0s 0 0 0.00000 0 11 25.00000 0.00000 100% - 0s 0 0 0.00000 0 11 25.00000 0.00000 100% - 0s 0 2 0.00000 0 11 25.00000 0.00000 100% - 0s * 13 13 10 10.0000000 2.60000 74.0% 13.2 0s * 28 16 10 9.0000000 2.72727 69.7% 13.3 0s * 37 17 7 8.0000000 3.24000 59.5% 11.7 0s Cutting planes: Gomory: 1 Explored 148 nodes (1186 simplex iterations) in 0.52 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%