Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:22 2012 Optimize a model with 1 rows, 19 columns and 19 nonzeros Model has 97 quadratic objective terms Modified 19 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 19 columns, 19 nonzeros Presolved model has 116 quadratic objective terms Variable types: 0 continuous, 19 integer (19 binary) Found heuristic solution: objective 47.0000000 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 0 0 0.00000 0 19 47.00000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s H 0 0 41.0000000 0.00000 100% - 0s 0 2 2.90034 0 19 41.00000 2.90034 92.9% - 0s * 301 155 10 39.0000000 11.51786 70.5% 2.0 0s H 1055 316 38.0000000 18.43310 51.5% 2.0 0s Explored 6859 nodes (13791 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%