Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:41 2012 Optimize a model with 1 rows, 42 columns and 42 nonzeros Model has 68 quadratic objective terms Presolve time: 0.00s Presolved: 69 rows, 110 columns, 246 nonzeros Variable types: 0 continuous, 110 integer (110 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 0.000000e+00, 81 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 26 34.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 26.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 0 0.00000 0 58 18.00000 0.00000 100% - 0s 0 0 0.00000 0 16 18.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 2 0.00000 0 16 14.00000 0.00000 100% - 0s H 189 98 12.0000000 1.00000 91.7% 6.5 0s * 291 88 12 11.0000000 2.75000 75.0% 9.7 0s Cutting planes: Cover: 131 Explored 400 nodes (6879 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%