Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:14 2012 Optimize a model with 27 rows, 62 columns and 62 nonzeros Model has 52 quadratic constraints Presolve time: 0.30s Presolved: 27 rows, 62 columns, 62 nonzeros Variable types: 52 continuous, 10 integer (10 binary) Root relaxation: objective 0.000000e+00, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 9.0000000 - - - 0s 0 0 0.00000 0 8 9.00000 0.00000 100% - 0s 0 0 0.26190 0 9 9.00000 0.26190 97.1% - 0s 0 2 0.30000 0 9 9.00000 0.30000 96.7% - 0s * 20 5 4 8.0000000 3.24295 59.5% 5.8 0s Cutting planes: Gomory: 1 Explored 40 nodes (282 simplex iterations) in 0.32 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%