Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:39 2012 Optimize a model with 1 rows, 139 columns and 139 nonzeros Model has 107 quadratic objective terms Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 108 rows, 228 columns, 442 nonzeros Variable types: 0 continuous, 228 integer (227 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 139 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 17 32.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 14.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 8.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 27 7.00000 0.00000 100% - 0s 0 0 0.00000 0 5 7.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 4 4.00000 0.00000 100% - 0s 0 0 0.00000 0 3 4.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 3.00000 0.00000 100% - 0s 0 0 0.00000 0 4 3.00000 0.00000 100% - 0s 0 0 0.00000 0 7 3.00000 0.00000 100% - 0s 0 0 0.00000 0 6 3.00000 0.00000 100% - 0s 0 0 0.00000 0 6 3.00000 0.00000 100% - 0s 0 0 0.00000 0 6 3.00000 0.00000 100% - 0s 0 2 0.00000 0 6 3.00000 0.00000 100% - 0s H 237 39 2.0000000 0.00000 100% 6.5 0s H 299 11 1.0000000 0.00000 100% 7.3 0s Cutting planes: Cover: 141 MIR: 3 Zero half: 2 Explored 300 nodes (2598 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%