Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:04 2012 Optimize a model with 1 rows, 39 columns and 39 nonzeros Model has 54 quadratic objective terms Presolve time: 0.00s Presolved: 55 rows, 93 columns, 201 nonzeros Variable types: 0 continuous, 93 integer (93 binary) Found heuristic solution: objective 25.0000000 Root relaxation: objective 0.000000e+00, 75 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 16 25.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 22 15.00000 0.00000 100% - 0s 0 0 0.00000 0 21 15.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 14.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 12.00000 0.00000 100% - 0s 0 0 0.00000 0 16 12.00000 0.00000 100% - 0s 0 0 0.00000 0 17 12.00000 0.00000 100% - 0s 0 0 0.00000 0 13 12.00000 0.00000 100% - 0s 0 2 0.00000 0 12 12.00000 0.00000 100% - 0s H 22 22 11.0000000 0.00000 100% 2.6 0s H 24 24 9.0000000 0.00000 100% 2.6 0s H 73 53 8.0000000 0.00000 100% 4.0 0s H 111 55 7.0000000 0.00000 100% 5.3 0s Cutting planes: Cover: 102 MIR: 2 Explored 199 nodes (2651 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%