Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:21:44 2012 Optimize a model with 1 rows, 130 columns and 130 nonzeros Model has 105 quadratic objective terms Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 106 rows, 211 columns, 421 nonzeros Variable types: 0 continuous, 211 integer (210 binary) Found heuristic solution: objective 31.0000000 Root relaxation: objective 0.000000e+00, 136 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 31.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 25.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 13.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 11.00000 0.00000 100% - 0s 0 0 0.00000 0 15 11.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 2 0.00000 0 15 10.00000 0.00000 100% - 0s H 100 62 8.0000000 0.00000 100% 2.6 0s H 108 62 7.0000000 0.00000 100% 2.5 0s * 119 53 22 6.0000000 0.00000 100% 2.4 0s H 218 82 5.0000000 0.00000 100% 3.1 0s * 384 86 6 3.0000000 0.00000 100% 6.2 0s * 393 35 11 2.0000000 0.00000 100% 6.7 0s Cutting planes: Cover: 177 Explored 429 nodes (4382 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%