Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:59 2012 Optimize a model with 1 rows, 148 columns and 148 nonzeros Model has 119 quadratic objective terms Presolve removed 0 rows and 32 columns Presolve time: 0.00s Presolved: 120 rows, 235 columns, 473 nonzeros Variable types: 0 continuous, 235 integer (234 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 0.000000e+00, 144 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 28 34.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 25.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s 0 0 0.00000 0 26 22.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 16.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 11.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 9.00000 0.00000 100% - 0s 0 0 0.00000 0 18 9.00000 0.00000 100% - 0s 0 2 0.00000 0 18 9.00000 0.00000 100% - 0s H 81 45 7.0000000 0.00000 100% 1.8 0s H 164 57 6.0000000 0.00000 100% 2.8 0s H 165 52 5.0000000 0.00000 100% 2.8 0s * 414 125 11 4.0000000 0.00000 100% 8.7 0s * 498 37 8 3.0000000 2.00000 33.3% 17.7 0s Cutting planes: Cover: 230 Explored 536 nodes (10637 simplex iterations) in 0.19 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%