Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:46 2012 Optimize a model with 40 rows, 109 columns and 109 nonzeros Model has 78 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 0.45s Presolved: 40 rows, 107 columns, 107 nonzeros Variable types: 78 continuous, 29 integer (28 binary) Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 17.0000000 - - - 0s 0 0 0.00000 0 21 17.00000 0.00000 100% - 0s 0 0 0.12030 0 25 17.00000 0.12030 99.3% - 0s 0 2 0.18981 0 25 17.00000 0.18981 98.9% - 0s * 18 18 12 8.0000000 1.80000 77.5% 9.4 0s * 20 12 12 7.0000000 1.80000 74.3% 8.9 0s * 80 13 5 5.0000000 3.82993 23.4% 8.1 0s Cutting planes: Gomory: 3 Explored 96 nodes (1049 simplex iterations) in 0.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%