Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:52 2012 Optimize a model with 1 rows, 151 columns and 151 nonzeros Model has 129 quadratic objective terms Presolve removed 0 rows and 31 columns Presolve time: 0.00s Presolved: 130 rows, 249 columns, 507 nonzeros Variable types: 0 continuous, 249 integer (248 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 154 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 35 32.00000 0.00000 100% - 0s 0 0 0.00000 0 34 32.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.00000 0 34 24.00000 0.00000 100% - 0s 0 0 0.00000 0 13 24.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 15 12.00000 0.00000 100% - 0s 0 0 0.00000 0 15 12.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 2 0.00000 0 11 8.00000 0.00000 100% - 0s H 303 152 7.0000000 0.00000 100% 7.4 0s H 436 203 6.0000000 0.00000 100% 8.7 0s H 464 167 5.0000000 0.00000 100% 9.0 0s Cutting planes: Cover: 246 MIR: 1 Zero half: 2 Explored 702 nodes (17368 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%