Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:16 2012 Optimize a model with 23 rows, 55 columns and 55 nonzeros Model has 44 quadratic constraints Presolve time: 0.26s Presolved: 23 rows, 55 columns, 55 nonzeros Variable types: 44 continuous, 11 integer (11 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 11.0000000 - - - 0s 0 0 0.00000 0 8 11.00000 0.00000 100% - 0s 0 0 0.24528 0 11 11.00000 0.24528 97.8% - 0s 0 2 0.28571 0 11 11.00000 0.28571 97.4% - 0s * 8 8 5 8.0000000 3.00000 62.5% 7.8 0s * 22 4 4 7.0000000 4.00000 42.9% 6.6 0s Cutting planes: Gomory: 1 Explored 30 nodes (235 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%