Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:26 2012 Optimize a model with 1 rows, 138 columns and 138 nonzeros Model has 96 quadratic objective terms Presolve removed 0 rows and 31 columns Presolve time: 0.00s Presolved: 97 rows, 203 columns, 395 nonzeros Variable types: 0 continuous, 203 integer (202 binary) Found heuristic solution: objective 24.0000000 Root relaxation: objective 0.000000e+00, 122 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 14 24.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 8 11.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 7.00000 0.00000 100% - 0s 0 0 0.00000 0 13 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 9 6.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 5.00000 0.00000 100% - 0s 0 0 0.00000 0 6 5.00000 0.00000 100% - 0s 0 0 0.00000 0 5 5.00000 0.00000 100% - 0s 0 0 0.00000 0 4 5.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 6 4.00000 0.00000 100% - 0s 0 0 0.00000 0 6 4.00000 0.00000 100% - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Cover: 3 Explored 0 nodes (303 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%