Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:53 2012 Optimize a model with 1 rows, 151 columns and 151 nonzeros Model has 113 quadratic objective terms Presolve removed 0 rows and 29 columns Presolve time: 0.00s Presolved: 114 rows, 235 columns, 461 nonzeros Variable types: 0 continuous, 235 integer (234 binary) Found heuristic solution: objective 28.0000000 Root relaxation: objective 0.000000e+00, 139 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 23 28.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 22.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 11.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 9.00000 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 0 0 0.00000 0 10 7.00000 0.00000 100% - 0s 0 0 0.00000 0 10 7.00000 0.00000 100% - 0s 0 0 0.00000 0 10 7.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 10 5.00000 0.00000 100% - 0s H 81 44 4.0000000 0.00000 100% 2.9 0s H 217 45 3.0000000 0.00000 100% 3.9 0s H 272 23 1.0000000 0.00000 100% 3.7 0s Cutting planes: Cover: 88 Explored 273 nodes (1403 simplex iterations) in 0.06 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%