Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:35 2012 Optimize a model with 1 rows, 15 columns and 15 nonzeros Model has 43 quadratic objective terms Modified 15 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 15 columns, 15 nonzeros Presolved model has 58 quadratic objective terms Variable types: 0 continuous, 15 integer (15 binary) Found heuristic solution: objective 24.0000000 Root relaxation: objective 0.000000e+00, 17 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 15 24.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 2 2.29650 0 15 19.00000 2.29650 87.9% - 0s H 6 6 17.0000000 4.00943 76.4% 1.7 0s H 85 35 15.0000000 6.52822 56.5% 2.2 0s Explored 486 nodes (1121 simplex iterations) in 0.02 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%