Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:48 2012 Optimize a model with 1 rows, 46 columns and 46 nonzeros Model has 49 quadratic objective terms Presolve removed 0 rows and 6 columns Presolve time: 0.00s Presolved: 50 rows, 89 columns, 187 nonzeros Variable types: 0 continuous, 89 integer (88 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 0.000000e+00, 61 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 12 8.00000 0.00000 100% - 0s 0 0 0.00000 0 16 8.00000 0.00000 100% - 0s 0 0 0.00000 0 5 8.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 3.00000 0.00000 100% - 0s 0 0 0.00000 0 10 3.00000 0.00000 100% - 0s 0 0 0.00000 0 4 3.00000 0.00000 100% - 0s 0 0 0.00000 0 16 3.00000 0.00000 100% - 0s 0 0 0.00000 0 4 3.00000 0.00000 100% - 0s 0 2 0.00000 0 4 3.00000 0.00000 100% - 0s Cutting planes: Cover: 78 MIR: 1 Explored 124 nodes (1213 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%