Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:27:30 2012 Optimize a model with 1 rows, 153 columns and 153 nonzeros Model has 117 quadratic objective terms Presolve removed 0 rows and 32 columns Presolve time: 0.00s Presolved: 118 rows, 238 columns, 472 nonzeros Variable types: 0 continuous, 238 integer (237 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 0.000000e+00, 143 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 30.00000 0.00000 100% - 0s 0 0 0.00000 0 25 30.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 16.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 11.00000 0.00000 100% - 0s 0 0 0.00000 0 55 11.00000 0.00000 100% - 0s 0 0 0.00000 0 11 11.00000 0.00000 100% - 0s 0 0 0.00000 0 12 11.00000 0.00000 100% - 0s 0 0 0.00000 0 11 11.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 2 0.00000 0 11 9.00000 0.00000 100% - 0s H 3 3 7.0000000 0.00000 100% 2.3 0s H 54 36 6.0000000 0.00000 100% 2.2 0s H 95 38 5.0000000 0.00000 100% 2.2 0s * 108 30 20 4.0000000 0.00000 100% 2.2 0s * 337 70 14 3.0000000 0.00000 100% 5.7 0s H 355 6 1.0000000 0.00000 100% 5.8 0s Cutting planes: Cover: 156 MIR: 7 Zero half: 9 Explored 356 nodes (2509 simplex iterations) in 0.08 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%