Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:11 2012 Optimize a model with 1 rows, 26 columns and 26 nonzeros Model has 36 quadratic objective terms Presolve time: 0.00s Presolved: 37 rows, 62 columns, 134 nonzeros Variable types: 0 continuous, 62 integer (62 binary) Found heuristic solution: objective 15.0000000 Root relaxation: objective 0.000000e+00, 49 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 8 15.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 8.00000 0.00000 100% - 0s 0 0 0.00000 0 8 8.00000 0.00000 100% - 0s 0 0 0.00000 0 11 8.00000 0.00000 100% - 0s 0 0 0.00000 0 13 8.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 13 5.00000 0.00000 100% - 0s Cutting planes: Cover: 58 Explored 84 nodes (628 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%