Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:22:33 2012 Optimize a model with 1 rows, 134 columns and 134 nonzeros Model has 115 quadratic objective terms Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 116 rows, 224 columns, 454 nonzeros Variable types: 0 continuous, 224 integer (223 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 0.000000e+00, 146 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 34 30.00000 0.00000 100% - 0s 0 0 0.00000 0 29 30.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 27 17.00000 0.00000 100% - 0s 0 0 0.00000 0 18 17.00000 0.00000 100% - 0s 0 0 0.00000 0 15 17.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 14.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 51 10.00000 0.00000 100% - 0s 0 0 0.00000 0 14 10.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 2 0.00000 0 14 7.00000 0.00000 100% - 0s H 81 57 6.0000000 0.00000 100% 3.3 0s H 249 81 4.0000000 0.00000 100% 6.7 0s * 364 78 39 3.0000000 1.00000 66.7% 8.3 0s Cutting planes: Cover: 200 Explored 446 nodes (7254 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%