Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:17 2012 Optimize a model with 1 rows, 155 columns and 155 nonzeros Model has 120 quadratic objective terms Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 121 rows, 249 columns, 489 nonzeros Variable types: 0 continuous, 249 integer (248 binary) Found heuristic solution: objective 27.0000000 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 32 27.00000 0.00000 100% - 0s 0 0 0.00000 0 28 27.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.00000 0 29 24.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 14 14.00000 0.00000 100% - 0s 0 0 0.00000 0 14 14.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 14 12.00000 0.00000 100% - 0s 0 0 0.00000 0 14 12.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 2 0.00000 0 14 11.00000 0.00000 100% - 0s H 16 16 7.0000000 0.00000 100% 3.7 0s H 93 52 6.0000000 0.00000 100% 3.3 0s * 95 47 20 5.0000000 0.00000 100% 3.3 0s H 208 83 4.0000000 0.00000 100% 5.7 0s * 222 57 36 3.0000000 0.00000 100% 5.6 0s * 343 65 12 2.0000000 0.00000 100% 8.7 0s * 363 2 10 1.0000000 1.00000 0.0% 11.0 0s Cutting planes: Cover: 206 Explored 364 nodes (4433 simplex iterations) in 0.10 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%