Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:43 2012 Optimize a model with 1 rows, 16 columns and 16 nonzeros Model has 45 quadratic objective terms Modified 16 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 16 columns, 16 nonzeros Presolved model has 61 quadratic objective terms Variable types: 0 continuous, 16 integer (16 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 0.000000e+00, 18 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 16 22.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 2 1.53497 0 16 17.00000 1.53497 91.0% - 0s H 69 35 16.0000000 4.98110 68.9% 2.1 0s H 117 60 15.0000000 5.83536 61.1% 2.1 0s Explored 824 nodes (1842 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%