Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:48 2012 Optimize a model with 1 rows, 46 columns and 46 nonzeros Model has 63 quadratic objective terms Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 64 rows, 105 columns, 231 nonzeros Variable types: 0 continuous, 105 integer (104 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 0.000000e+00, 79 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 22 22.00000 0.00000 100% - 0s 0 0 0.00000 0 21 22.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 35 21.00000 0.00000 100% - 0s 0 0 0.00000 0 17 21.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 2 0.00000 0 15 14.00000 0.00000 100% - 0s * 171 99 15 13.0000000 0.00000 100% 5.4 0s H 187 93 12.0000000 0.00000 100% 6.4 0s H 374 91 10.0000000 1.00000 90.0% 9.1 0s Cutting planes: Gomory: 1 Cover: 121 Explored 524 nodes (7025 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%