Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:32 2012 Optimize a model with 1 rows, 165 columns and 165 nonzeros Model has 152 quadratic objective terms Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 153 rows, 293 columns, 597 nonzeros Variable types: 0 continuous, 293 integer (292 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 185 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 40 39.00000 0.00000 100% - 0s 0 0 0.00000 0 29 39.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 32 26.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 28 19.00000 0.00000 100% - 0s 0 0 0.00000 0 19 19.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 14.00000 0.00000 100% - 0s 0 0 0.00000 0 22 14.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 10.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 9.00000 0.00000 100% - 0s 0 0 0.00000 0 22 9.00000 0.00000 100% - 0s 0 0 0.00000 0 21 9.00000 0.00000 100% - 0s 0 2 0.00000 0 16 9.00000 0.00000 100% - 0s H 362 151 8.0000000 0.00000 100% 7.2 0s H 383 132 7.0000000 0.00000 100% 7.3 0s H 410 123 6.0000000 0.00000 100% 7.3 0s H 466 89 5.0000000 0.00000 100% 9.9 0s Cutting planes: Cover: 268 Explored 596 nodes (14090 simplex iterations) in 0.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%