Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:14 2012 Optimize a model with 1 rows, 35 columns and 35 nonzeros Model has 63 quadratic objective terms Presolve time: 0.00s Presolved: 64 rows, 98 columns, 224 nonzeros Variable types: 0 continuous, 98 integer (98 binary) Found heuristic solution: objective 30.0000000 Found heuristic solution: objective 26.0000000 Root relaxation: objective 0.000000e+00, 80 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 24 26.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 23.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 35 19.00000 0.00000 100% - 0s 0 0 0.00000 0 16 19.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 2 0.00000 0 15 15.00000 0.00000 100% - 0s H 2 2 14.0000000 0.00000 100% 2.0 0s * 116 61 14 13.0000000 0.33333 97.4% 5.4 0s * 271 42 13 12.0000000 5.33333 55.6% 10.1 0s Cutting planes: Cover: 121 Explored 327 nodes (3706 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%