Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:12 2012 Optimize a model with 1 rows, 137 columns and 137 nonzeros Model has 110 quadratic objective terms Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 111 rows, 224 columns, 444 nonzeros Variable types: 0 continuous, 224 integer (223 binary) Found heuristic solution: objective 27.0000000 Root relaxation: objective 0.000000e+00, 140 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 27.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 20.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 17.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 14 10.00000 0.00000 100% - 0s 0 0 0.00000 0 9 10.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 8.00000 0.00000 100% - 0s 0 0 0.00000 0 11 8.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 2 0.00000 0 10 7.00000 0.00000 100% - 0s H 135 52 5.0000000 0.00000 100% 3.0 0s H 190 62 4.0000000 0.00000 100% 3.5 0s * 481 82 13 3.0000000 0.00000 100% 7.9 0s * 528 0 11 2.0000000 2.00000 0.0% 12.4 0s Cutting planes: Cover: 190 MIR: 2 Explored 529 nodes (6862 simplex iterations) in 0.14 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%