Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:46 2012 Optimize a model with 1 rows, 163 columns and 163 nonzeros Model has 134 quadratic objective terms Presolve removed 0 rows and 29 columns Presolve time: 0.00s Presolved: 135 rows, 268 columns, 536 nonzeros Variable types: 0 continuous, 268 integer (267 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 159 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 33 32.00000 0.00000 100% - 0s 0 0 0.00000 0 31 32.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 27.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 19 15.00000 0.00000 100% - 0s 0 0 0.00000 0 17 15.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 7.00000 0.00000 100% - 0s 0 0 0.00000 0 13 7.00000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 9 5.00000 0.00000 100% - 0s H 94 23 4.0000000 0.00000 100% 1.6 0s * 96 19 12 3.0000000 0.00000 100% 1.5 0s H 137 17 2.0000000 0.00000 100% 1.8 0s H 327 0 1.0000000 0.00000 100% 8.5 0s Cutting planes: Cover: 224 MIR: 1 Explored 328 nodes (3353 simplex iterations) in 0.09 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%