Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:01:05 2012 Optimize a model with 1 rows, 49 columns and 49 nonzeros Model has 102 quadratic objective terms Modified 49 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 49 columns, 49 nonzeros Presolved model has 151 quadratic objective terms Variable types: 0 continuous, 49 integer (49 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 51 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 49 47.00000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s H 0 0 41.0000000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 2 1.55548 0 49 20.00000 1.55548 92.2% - 0s H 1 1 17.0000000 1.55548 90.9% 0.0 0s H 618 393 16.0000000 4.61272 71.2% 2.7 0s Explored 10499 nodes (28201 simplex iterations) in 0.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%