Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:53 2012 Optimize a model with 1 rows, 17 columns and 17 nonzeros Model has 62 quadratic objective terms Modified 17 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 17 columns, 17 nonzeros Presolved model has 79 quadratic objective terms Variable types: 0 continuous, 17 integer (17 binary) Found heuristic solution: objective 32.0000000 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 0 0 0.00000 0 17 32.00000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 2 2.34061 0 17 27.00000 2.34061 91.3% - 0s H 7 7 21.0000000 4.93468 76.5% 1.7 0s Explored 1011 nodes (2275 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%