Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:54 2012 Optimize a model with 1 rows, 140 columns and 140 nonzeros Model has 107 quadratic objective terms Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 108 rows, 223 columns, 437 nonzeros Variable types: 0 continuous, 223 integer (222 binary) Found heuristic solution: objective 28.0000000 Root relaxation: objective 0.000000e+00, 134 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 29 28.00000 0.00000 100% - 0s 0 0 0.00000 0 18 28.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 11.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 5.00000 0.00000 100% - 0s 0 0 0.00000 0 10 5.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 8 4.00000 0.00000 100% - 0s 0 0 0.00000 0 10 4.00000 0.00000 100% - 0s 0 0 0.00000 0 10 4.00000 0.00000 100% - 0s 0 2 0.00000 0 8 4.00000 0.00000 100% - 0s H 54 11 3.0000000 0.00000 100% 2.5 0s H 272 34 2.0000000 0.00000 100% 4.5 0s * 346 10 15 1.0000000 0.00000 100% 7.6 0s Cutting planes: Cover: 164 MIR: 3 Zero half: 1 Explored 347 nodes (2983 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%