Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:27:12 2012 Optimize a model with 1 rows, 152 columns and 152 nonzeros Model has 114 quadratic objective terms Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 115 rows, 242 columns, 470 nonzeros Variable types: 0 continuous, 242 integer (241 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 0.000000e+00, 149 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 17 29.00000 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 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 7.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 4.00000 0.00000 100% - 0s 0 0 0.00000 0 8 4.00000 0.00000 100% - 0s 0 0 0.00000 0 6 4.00000 0.00000 100% - 0s H 0 0 3.0000000 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 * 275 43 10 2.0000000 0.00000 100% 7.5 0s * 323 1 6 1.0000000 0.00000 100% 8.4 0s Cutting planes: Cover: 162 Explored 324 nodes (3204 simplex iterations) in 0.09 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%