Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:05 2012 Optimize a model with 76 rows, 191 columns and 191 nonzeros Model has 150 quadratic constraints Presolve time: 0.88s Presolved: 76 rows, 191 columns, 191 nonzeros Variable types: 150 continuous, 41 integer (41 binary) Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 31.0000000 - - - 0s 0 0 0.00000 0 32 31.00000 0.00000 100% - 0s 0 0 0.33173 0 39 31.00000 0.33173 98.9% - 0s 0 2 0.37500 0 39 31.00000 0.37500 98.8% - 0s * 14 14 10 14.0000000 1.95486 86.0% 28.3 0s * 32 18 9 13.0000000 2.00893 84.5% 25.4 0s * 55 22 9 12.0000000 4.04464 66.3% 22.7 0s Cutting planes: Gomory: 1 Explored 126 nodes (2896 simplex iterations) in 0.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%