Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:53 2012 Optimize a model with 34 rows, 87 columns and 87 nonzeros Model has 66 quadratic constraints Presolve time: 0.39s Presolved: 34 rows, 87 columns, 87 nonzeros Variable types: 66 continuous, 21 integer (21 binary) Root relaxation: objective 0.000000e+00, 10 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 19.0000000 - - - 0s 0 0 0.00000 0 9 19.00000 0.00000 100% - 0s 0 0 0.00000 0 16 19.00000 0.00000 100% - 0s 0 0 0.00000 0 15 19.00000 0.00000 100% - 0s 0 2 0.00000 0 15 19.00000 0.00000 100% - 0s * 17 17 10 9.0000000 1.33333 85.2% 9.6 0s * 22 18 13 8.0000000 1.33333 83.3% 8.3 0s * 72 23 6 7.0000000 3.00000 57.1% 8.0 0s Cutting planes: Gomory: 1 Explored 128 nodes (1092 simplex iterations) in 0.42 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%