Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:57:19 2012 Optimize a model with 1 rows, 24 columns and 24 nonzeros Model has 135 quadratic objective terms Modified 24 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 24 columns, 24 nonzeros Presolved model has 159 quadratic objective terms Variable types: 0 continuous, 24 integer (24 binary) Found heuristic solution: objective 68.0000000 Root relaxation: objective 0.000000e+00, 25 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 24 68.00000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s H 0 0 59.0000000 0.00000 100% - 0s 0 2 2.57732 0 24 59.00000 2.57732 95.6% - 0s H 3 3 56.0000000 5.66184 89.9% 1.3 0s H 43 36 55.0000000 5.74096 89.6% 2.0 0s H 685 427 52.0000000 14.82785 71.5% 2.1 0s Explored 57883 nodes (117711 simplex iterations) in 2.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.200000000000e+01, best bound 5.200000000000e+01, gap 0.0%