Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:43 2012 Optimize a model with 1 rows, 147 columns and 147 nonzeros Model has 115 quadratic objective terms Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 116 rows, 242 columns, 472 nonzeros Variable types: 0 continuous, 242 integer (241 binary) Found heuristic solution: objective 37.0000000 Root relaxation: objective 0.000000e+00, 155 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 24 37.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 23.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 9.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 6.00000 0.00000 100% - 0s 0 0 0.00000 0 7 6.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 3.00000 0.00000 100% - 0s 0 0 0.00000 0 11 3.00000 0.00000 100% - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Cover: 12 Explored 0 nodes (302 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%