Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:18:03 2012 Optimize a model with 1 rows, 107 columns and 107 nonzeros Model has 61 quadratic objective terms Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 62 rows, 140 columns, 262 nonzeros Variable types: 0 continuous, 140 integer (139 binary) Found heuristic solution: objective 12.0000000 Root relaxation: objective 0.000000e+00, 71 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 7 12.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 7.00000 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 2 2.00000 0.00000 100% - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Cover: 8 Explored 0 nodes (124 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%