Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:54 2012 Optimize a model with 1 rows, 140 columns and 140 nonzeros Model has 99 quadratic objective terms Presolve removed 0 rows and 31 columns Presolve time: 0.00s Presolved: 100 rows, 208 columns, 406 nonzeros Variable types: 0 continuous, 208 integer (207 binary) Found heuristic solution: objective 19.0000000 Root relaxation: objective 0.000000e+00, 116 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 17 19.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 8 12.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 7.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 9 5.00000 0.00000 100% - 0s 0 0 0.00000 0 5 5.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 2 0.00000 0 5 4.00000 0.00000 100% - 0s * 76 20 11 3.0000000 0.00000 100% 1.8 0s H 163 17 2.0000000 0.00000 100% 2.0 0s Cutting planes: Cover: 170 Explored 505 nodes (4544 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%