Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:54 2012 Optimize a model with 1 rows, 168 columns and 168 nonzeros Model has 142 quadratic objective terms Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 143 rows, 284 columns, 568 nonzeros Variable types: 0 continuous, 284 integer (283 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 0.000000e+00, 185 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 27 38.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s 0 0 0.00000 0 22 22.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 17.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 35 11.00000 0.00000 100% - 0s 0 0 0.00000 0 17 11.00000 0.00000 100% - 0s 0 0 0.00000 0 8 11.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 8.00000 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 11 7.00000 0.00000 100% - 0s 0 0 0.00000 0 11 7.00000 0.00000 100% - 0s 0 2 0.00000 0 11 7.00000 0.00000 100% - 0s H 27 19 6.0000000 0.00000 100% 2.0 0s H 54 28 5.0000000 0.00000 100% 2.1 0s * 74 36 14 4.0000000 0.00000 100% 2.7 0s H 81 29 3.0000000 0.00000 100% 3.0 0s Cutting planes: Cover: 247 MIR: 2 Explored 505 nodes (11718 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%