Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:19 2012 Optimize a model with 1 rows, 40 columns and 40 nonzeros Model has 91 quadratic objective terms Modified 40 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 40 columns, 40 nonzeros Presolved model has 131 quadratic objective terms Variable types: 0 continuous, 40 integer (40 binary) Found heuristic solution: objective 49.0000000 Root relaxation: objective 0.000000e+00, 42 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 40 49.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 2 1.83188 0 40 21.00000 1.83188 91.3% - 0s H 6 6 20.0000000 2.64254 86.8% 2.0 0s H 8 8 15.0000000 2.64254 82.4% 2.0 0s H 11 11 14.0000000 2.64254 81.1% 2.1 0s Explored 1352 nodes (3434 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%