Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:00 2012 Optimize a model with 1 rows, 148 columns and 148 nonzeros Model has 113 quadratic objective terms Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 114 rows, 233 columns, 459 nonzeros Variable types: 0 continuous, 233 integer (232 binary) Found heuristic solution: objective 27.0000000 Root relaxation: objective 0.000000e+00, 136 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 27.00000 0.00000 100% - 0s 0 0 0.00000 0 21 27.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 25 17.00000 0.00000 100% - 0s 0 0 0.00000 0 12 17.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 2 0.00000 0 12 10.00000 0.00000 100% - 0s H 81 45 8.0000000 0.00000 100% 1.7 0s H 108 52 6.0000000 0.00000 100% 1.9 0s H 198 55 4.0000000 0.00000 100% 2.3 0s H 244 64 3.0000000 0.00000 100% 2.6 0s H 385 47 2.0000000 0.00000 100% 5.8 0s Cutting planes: Cover: 193 Explored 496 nodes (6927 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%