Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:33 2012 Optimize a model with 1 rows, 165 columns and 165 nonzeros Model has 140 quadratic objective terms Presolve removed 0 rows and 30 columns Presolve time: 0.00s Presolved: 141 rows, 275 columns, 555 nonzeros Variable types: 0 continuous, 275 integer (274 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 186 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 42 41.00000 0.00000 100% - 0s 0 0 0.00000 0 33 41.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 0 0.00000 0 26 38.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 32 13.00000 0.00000 100% - 0s 0 0 0.00000 0 18 13.00000 0.00000 100% - 0s 0 0 0.00000 0 12 13.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 11.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 7.00000 0.00000 100% - 0s 0 0 0.00000 0 18 7.00000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s 0 0 0.00000 0 9 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 6.00000 0.00000 100% - 0s 0 0 0.00000 0 13 6.00000 0.00000 100% - 0s 0 2 0.00000 0 13 6.00000 0.00000 100% - 0s H 271 90 5.0000000 0.00000 100% 4.6 0s H 352 87 4.0000000 0.00000 100% 5.2 0s H 379 67 3.0000000 0.00000 100% 5.7 0s Cutting planes: Cover: 241 Explored 536 nodes (11505 simplex iterations) in 0.22 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%