Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:24 2012 Optimize a model with 1 rows, 36 columns and 36 nonzeros Model has 75 quadratic objective terms Modified 35 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 36 columns, 36 nonzeros Presolved model has 110 quadratic objective terms Variable types: 0 continuous, 36 integer (36 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 0.000000e+00, 39 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 35 34.00000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 2 0.00000 0 35 24.00000 0.00000 100% - 0s H 8 8 23.0000000 2.93917 87.2% 2.2 0s H 9 9 19.0000000 2.93917 84.5% 2.2 0s H 59 45 18.0000000 2.93959 83.7% 2.5 0s H 270 167 17.0000000 4.81919 71.7% 2.7 0s H 630 298 15.0000000 6.94207 53.7% 2.7 0s Explored 2059 nodes (5389 simplex iterations) in 0.17 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%