Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:34 2012 Optimize a model with 1 rows, 150 columns and 150 nonzeros Model has 121 quadratic objective terms Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 122 rows, 247 columns, 489 nonzeros Variable types: 0 continuous, 247 integer (246 binary) Found heuristic solution: objective 36.0000000 Root relaxation: objective 0.000000e+00, 158 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 32 36.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 23.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 19.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 28 9.00000 0.00000 100% - 0s 0 0 0.00000 0 11 9.00000 0.00000 100% - 0s H 0 0 8.0000000 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 0 0 0.00000 0 13 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 2 0.00000 0 11 6.00000 0.00000 100% - 0s H 27 16 4.0000000 0.00000 100% 1.7 0s * 43 24 15 3.0000000 0.00000 100% 2.3 0s H 81 16 2.0000000 0.00000 100% 2.1 0s H 253 9 1.0000000 0.00000 100% 6.1 0s Cutting planes: Cover: 130 MIR: 2 Zero half: 2 Explored 254 nodes (1927 simplex iterations) in 0.06 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%