Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:21 2012 Optimize a model with 1 rows, 42 columns and 42 nonzeros Model has 92 quadratic objective terms Modified 42 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 42 columns, 42 nonzeros Presolved model has 134 quadratic objective terms Variable types: 0 continuous, 42 integer (42 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 44 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 42 47.00000 0.00000 100% - 0s H 0 0 45.0000000 0.00000 100% - 0s H 0 0 41.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 2 2.02669 0 42 19.00000 2.02669 89.3% - 0s H 1047 465 18.0000000 7.87402 56.3% 2.6 0s Explored 15254 nodes (39568 simplex iterations) in 1.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%