Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:03 2012 Optimize a model with 1 rows, 21 columns and 21 nonzeros Model has 99 quadratic objective terms Modified 21 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 21 columns, 21 nonzeros Presolved model has 120 quadratic objective terms Variable types: 0 continuous, 21 integer (21 binary) Found heuristic solution: objective 49.0000000 Root relaxation: objective 0.000000e+00, 23 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 21 49.00000 0.00000 100% - 0s H 0 0 48.0000000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s 0 2 3.38359 0 21 39.00000 3.38359 91.3% - 0s H 1342 414 37.0000000 18.72727 49.4% 2.1 0s Explored 9785 nodes (20122 simplex iterations) in 0.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%