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 77 quadratic objective terms Modified 17 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 17 columns, 17 nonzeros Presolved model has 94 quadratic objective terms Variable types: 0 continuous, 17 integer (17 binary) Found heuristic solution: objective 45.0000000 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 45.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s 0 2 2.36782 0 17 36.00000 2.36782 93.4% - 0s H 9 9 33.0000000 4.00813 87.9% 1.8 0s H 154 105 31.0000000 8.48007 72.6% 2.0 0s Explored 2921 nodes (6152 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%