Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:26 2012 Optimize a model with 1 rows, 146 columns and 146 nonzeros Model has 104 quadratic objective terms Presolve removed 0 rows and 36 columns Presolve time: 0.00s Presolved: 105 rows, 214 columns, 422 nonzeros Variable types: 0 continuous, 214 integer (213 binary) Found heuristic solution: objective 26.0000000 Root relaxation: objective 0.000000e+00, 126 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 26 26.00000 0.00000 100% - 0s 0 0 0.00000 0 17 26.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 9 13.00000 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 9 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 6.00000 0.00000 100% - 0s 0 0 0.00000 0 11 6.00000 0.00000 100% - 0s 0 2 0.00000 0 11 6.00000 0.00000 100% - 0s H 17 17 5.0000000 0.00000 100% 5.4 0s H 82 37 4.0000000 0.00000 100% 3.7 0s * 129 33 25 3.0000000 0.00000 100% 3.9 0s H 219 27 2.0000000 0.00000 100% 3.8 0s H 328 5 1.0000000 0.00000 100% 6.5 0s Cutting planes: Cover: 151 Explored 329 nodes (2551 simplex iterations) in 0.07 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%