Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:57 2012 Optimize a model with 77 rows, 190 columns and 190 nonzeros Model has 152 quadratic constraints Presolve time: 0.89s Presolved: 77 rows, 190 columns, 190 nonzeros Variable types: 152 continuous, 38 integer (38 binary) Root relaxation: objective 0.000000e+00, 19 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 46.0000000 - - - 0s 0 0 0.00000 0 36 46.00000 0.00000 100% - 0s 0 0 0.50000 0 38 46.00000 0.50000 98.9% - 0s 0 2 0.51270 0 38 46.00000 0.51270 98.9% - 0s H 8 8 37.0000000 2.97015 92.0% 29.4 0s * 25 23 16 20.0000000 2.97015 85.1% 21.5 0s * 63 29 8 15.0000000 4.52239 69.9% 20.7 0s Cutting planes: Gomory: 2 Explored 284 nodes (5916 simplex iterations) in 1.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%