Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:53 2012 Optimize a model with 1 rows, 151 columns and 151 nonzeros Model has 121 quadratic objective terms Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 122 rows, 244 columns, 486 nonzeros Variable types: 0 continuous, 244 integer (243 binary) Found heuristic solution: objective 37.0000000 Root relaxation: objective 0.000000e+00, 157 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 30 37.00000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 30.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 16.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 12.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 9.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 15 8.00000 0.00000 100% - 0s 0 0 0.00000 0 16 8.00000 0.00000 100% - 0s 0 0 0.00000 0 16 8.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 16 5.00000 0.00000 100% - 0s H 108 49 4.0000000 0.00000 100% 3.4 0s H 260 29 2.0000000 0.00000 100% 5.3 0s * 379 0 8 1.0000000 1.00000 0.0% 7.5 0s Cutting planes: Cover: 196 Explored 380 nodes (3262 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%