Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:59 2012 Optimize a model with 1 rows, 44 columns and 44 nonzeros Model has 82 quadratic objective terms Presolve time: 0.00s Presolved: 83 rows, 126 columns, 290 nonzeros Variable types: 0 continuous, 126 integer (126 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 0.000000e+00, 101 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 32 38.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 28 26.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.00000 0 58 25.00000 0.00000 100% - 0s 0 0 0.00000 0 23 25.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 2 0.00000 0 23 19.00000 0.00000 100% - 0s H 162 89 16.0000000 0.75000 95.3% 8.5 0s H 181 76 15.0000000 1.00000 93.3% 8.5 0s Cutting planes: Cover: 152 MIR: 5 Explored 388 nodes (7239 simplex iterations) in 0.13 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%