Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:27 2012 Optimize a model with 1 rows, 29 columns and 29 nonzeros Model has 47 quadratic objective terms Presolve time: 0.00s Presolved: 48 rows, 76 columns, 170 nonzeros Variable types: 0 continuous, 76 integer (76 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 62 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 20 21.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 39 19.00000 0.00000 100% - 0s 0 0 0.00000 0 13 19.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 2 0.00000 0 13 12.00000 0.00000 100% - 0s H 109 57 11.0000000 0.00000 100% 4.2 0s * 177 62 7 10.0000000 1.00000 90.0% 5.8 0s Cutting planes: Gomory: 2 Cover: 88 Explored 298 nodes (2799 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%