Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:17 2012 Optimize a model with 1 rows, 155 columns and 155 nonzeros Model has 105 quadratic objective terms Presolve removed 0 rows and 37 columns Presolve time: 0.00s Presolved: 106 rows, 223 columns, 433 nonzeros Variable types: 0 continuous, 223 integer (222 binary) Found heuristic solution: objective 20.0000000 Root relaxation: objective 0.000000e+00, 129 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 20.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 13.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 10.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 7.00000 0.00000 100% - 0s 0 0 0.00000 0 7 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 7 5.00000 0.00000 100% - 0s H 11 11 4.0000000 0.00000 100% 10.3 0s * 17 14 12 3.0000000 0.00000 100% 7.6 0s H 217 31 2.0000000 0.00000 100% 5.3 0s * 295 11 8 1.0000000 0.00000 100% 8.6 0s Cutting planes: Cover: 165 MIR: 2 Explored 296 nodes (2871 simplex iterations) in 0.07 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%