Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:43 2012 Optimize a model with 23 rows, 62 columns and 62 nonzeros Model has 44 quadratic constraints Presolve time: 0.26s Presolved: 23 rows, 62 columns, 62 nonzeros Variable types: 44 continuous, 18 integer (18 binary) Root relaxation: objective 0.000000e+00, 9 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 15.0000000 - - - 0s 0 0 0.00000 0 14 15.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.33333 0 14 9.00000 0.33333 96.3% - 0s 0 0 0.33333 0 14 9.00000 0.33333 96.3% - 0s 0 2 0.47619 0 14 9.00000 0.47619 94.7% - 0s * 3 3 2 3.0000000 2.14706 28.4% 13.0 0s Cutting planes: Gomory: 1 Explored 7 nodes (201 simplex iterations) in 0.27 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%