Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:34 2012 Optimize a model with 1 rows, 150 columns and 150 nonzeros Model has 109 quadratic objective terms Presolve removed 0 rows and 36 columns Presolve time: 0.00s Presolved: 110 rows, 223 columns, 441 nonzeros Variable types: 0 continuous, 223 integer (222 binary) Found heuristic solution: objective 23.0000000 Root relaxation: objective 0.000000e+00, 135 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 21 23.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 19.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 6 8.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 4.00000 0.00000 100% - 0s 0 0 0.00000 0 7 4.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 8 3.00000 0.00000 100% - 0s 0 0 0.00000 0 6 3.00000 0.00000 100% - 0s 0 0 0.00000 0 2 3.00000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 0 0.00000 0 4 2.00000 0.00000 100% - 0s 0 0 0.00000 0 4 2.00000 0.00000 100% - 0s 0 2 0.00000 0 4 2.00000 0.00000 100% - 0s H 433 14 1.0000000 0.00000 100% 5.1 0s Cutting planes: Cover: 147 MIR: 2 Explored 434 nodes (2537 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%