Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:02 2012 Optimize a model with 32 rows, 86 columns and 86 nonzeros Model has 62 quadratic constraints Presolve time: 0.36s Presolved: 32 rows, 86 columns, 86 nonzeros Variable types: 62 continuous, 24 integer (24 binary) Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 21.0000000 - - - 0s 0 0 0.00000 0 19 21.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.33333 0 22 17.00000 0.33333 98.0% - 0s 0 0 0.33333 0 22 17.00000 0.33333 98.0% - 0s H 0 0 16.0000000 0.33333 97.9% - 0s 0 2 0.33333 0 22 16.00000 0.33333 97.9% - 0s * 4 4 4 5.0000000 1.45455 70.9% 9.8 0s * 14 5 7 4.0000000 1.45455 63.6% 8.9 0s Cutting planes: Gomory: 1 Explored 28 nodes (428 simplex iterations) in 0.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%