Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:01 2012 Optimize a model with 61 rows, 153 columns and 153 nonzeros Model has 120 quadratic constraints Presolve time: 0.70s Presolved: 61 rows, 153 columns, 153 nonzeros Variable types: 120 continuous, 33 integer (33 binary) Root relaxation: objective 0.000000e+00, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 25.0000000 - - - 0s 0 0 0.00000 0 29 25.00000 0.00000 100% - 0s 0 0 0.56474 0 33 25.00000 0.56474 97.7% - 0s 0 2 0.59091 0 33 25.00000 0.59091 97.6% - 0s H 16 16 13.0000000 2.63636 79.7% 20.1 0s * 69 25 8 10.0000000 3.72727 62.7% 16.4 0s Cutting planes: Gomory: 1 Explored 146 nodes (2653 simplex iterations) in 0.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%