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 118 quadratic objective terms Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 119 rows, 242 columns, 478 nonzeros Variable types: 0 continuous, 242 integer (241 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 0.000000e+00, 148 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 30 29.00000 0.00000 100% - 0s 0 0 0.00000 0 20 29.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 15.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 10.00000 0.00000 100% - 0s 0 0 0.00000 0 10 10.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 6.00000 0.00000 100% - 0s 0 0 0.00000 0 14 6.00000 0.00000 100% - 0s 0 0 0.00000 0 14 6.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 14 5.00000 0.00000 100% - 0s H 380 54 2.0000000 0.00000 100% 6.3 0s Cutting planes: Cover: 195 MIR: 3 Explored 471 nodes (6781 simplex iterations) in 0.13 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%