Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:22:08 2012 Optimize a model with 1 rows, 132 columns and 132 nonzeros Model has 104 quadratic objective terms Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 105 rows, 214 columns, 422 nonzeros Variable types: 0 continuous, 214 integer (213 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 0.000000e+00, 137 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 30 30.00000 0.00000 100% - 0s 0 0 0.00000 0 18 30.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 25 15.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 11.00000 0.00000 100% - 0s 0 0 0.00000 0 12 11.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 7.00000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s 0 0 0.00000 0 6 7.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 2 0.00000 0 6 3.00000 0.00000 100% - 0s * 202 26 13 2.0000000 0.00000 100% 6.7 0s * 248 5 10 1.0000000 0.00000 100% 8.1 0s Cutting planes: Cover: 145 Explored 249 nodes (2356 simplex iterations) in 0.06 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%