Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:26 2012 Optimize a model with 1 rows, 50 columns and 50 nonzeros Model has 76 quadratic objective terms Presolve time: 0.00s Presolved: 77 rows, 126 columns, 278 nonzeros Variable types: 0 continuous, 126 integer (126 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 93 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 30 35.00000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.00000 0 33 30.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 26.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 19.00000 0.00000 100% - 0s 0 0 0.00000 0 24 19.00000 0.00000 100% - 0s 0 2 0.00000 0 24 19.00000 0.00000 100% - 0s H 147 110 17.0000000 0.00000 100% 5.4 0s H 180 121 16.0000000 1.00000 93.8% 5.8 0s H 189 118 14.0000000 1.00000 92.9% 7.1 0s * 207 109 15 13.0000000 1.00000 92.3% 7.3 0s H 216 98 12.0000000 1.00000 91.7% 7.6 0s * 247 69 13 11.0000000 1.00000 90.9% 8.7 0s Cutting planes: Cover: 146 Explored 380 nodes (6539 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%