Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:22:21 2012 Optimize a model with 1 rows, 133 columns and 133 nonzeros Model has 98 quadratic objective terms Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 99 rows, 206 columns, 402 nonzeros Variable types: 0 continuous, 206 integer (205 binary) Found heuristic solution: objective 28.0000000 Root relaxation: objective 0.000000e+00, 123 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 27 28.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 21.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 15.00000 0.00000 100% - 0s 0 0 0.00000 0 7 15.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 4.00000 0.00000 100% - 0s 0 0 0.00000 0 3 4.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 3 3.00000 0.00000 100% - 0s 0 0 0.00000 0 6 3.00000 0.00000 100% - 0s 0 0 0.00000 0 6 3.00000 0.00000 100% - 0s 0 2 0.00000 0 6 3.00000 0.00000 100% - 0s * 34 11 21 2.0000000 0.00000 100% 1.9 0s * 113 7 30 1.0000000 0.00000 100% 2.3 0s Cutting planes: Cover: 30 Explored 114 nodes (573 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%