Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:56 2012 Optimize a model with 27 rows, 74 columns and 74 nonzeros Model has 52 quadratic constraints Presolve time: 0.30s Presolved: 27 rows, 74 columns, 74 nonzeros Variable types: 52 continuous, 22 integer (22 binary) Root relaxation: objective 0.000000e+00, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 13.0000000 - - - 0s 0 0 0.00000 0 10 13.00000 0.00000 100% - 0s 0 0 0.00000 0 16 13.00000 0.00000 100% - 0s 0 0 0.00000 0 15 13.00000 0.00000 100% - 0s 0 2 0.00000 0 15 13.00000 0.00000 100% - 0s * 7 7 6 3.0000000 1.57143 47.6% 15.3 0s Cutting planes: Gomory: 1 Explored 36 nodes (385 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%