Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:19:09 2012 Optimize a model with 1 rows, 115 columns and 115 nonzeros Model has 64 quadratic objective terms Presolve removed 0 rows and 33 columns Presolve time: 0.00s Presolved: 65 rows, 146 columns, 274 nonzeros Variable types: 0 continuous, 146 integer (145 binary) Found heuristic solution: objective 12.0000000 Root relaxation: objective 0.000000e+00, 76 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 6 12.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 5.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 2 3.00000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 0 0.00000 0 2 2.00000 0.00000 100% - 0s 0 0 0.00000 0 1 2.00000 0.00000 100% - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Cover: 15 Explored 0 nodes (147 simplex iterations) in 0.01 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%