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 80 quadratic objective terms Modified 17 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 17 columns, 17 nonzeros Presolved model has 97 quadratic objective terms Variable types: 0 continuous, 17 integer (17 binary) Found heuristic solution: objective 42.0000000 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 42.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 2 2.40083 0 17 38.00000 2.40083 93.7% - 0s H 7 7 36.0000000 4.93112 86.3% 1.7 0s H 10 10 32.0000000 4.93112 84.6% 1.8 0s H 698 254 31.0000000 15.68616 49.4% 2.1 0s Explored 2980 nodes (6104 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.100000000000e+01, best bound 3.100000000000e+01, gap 0.0%