Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:21:32 2012 Optimize a model with 1 rows, 129 columns and 129 nonzeros Model has 90 quadratic objective terms Presolve removed 0 rows and 34 columns Presolve time: 0.00s Presolved: 91 rows, 185 columns, 365 nonzeros Variable types: 0 continuous, 185 integer (184 binary) Found heuristic solution: objective 16.0000000 Root relaxation: objective 0.000000e+00, 105 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 13 16.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 12.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 10.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 9.00000 0.00000 100% - 0s 0 0 0.00000 0 6 9.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 6 5.00000 0.00000 100% - 0s 0 0 0.00000 0 11 5.00000 0.00000 100% - 0s 0 0 0.00000 0 11 5.00000 0.00000 100% - 0s 0 2 0.00000 0 11 5.00000 0.00000 100% - 0s * 33 19 13 4.0000000 0.00000 100% 2.4 0s * 35 14 13 3.0000000 0.00000 100% 2.3 0s * 48 13 11 2.0000000 0.00000 100% 2.6 0s * 51 4 8 1.0000000 0.00000 100% 2.6 0s Cutting planes: Cover: 38 Explored 52 nodes (474 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%