Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:32 2012 Optimize a model with 940 rows, 62 columns and 1880 nonzeros Presolve removed 672 rows and 0 columns Presolve time: 0.02s Presolved: 268 rows, 62 columns, 1612 nonzeros Variable types: 0 continuous, 62 integer (62 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.013263e+01, 136 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10.13263 0 57 6.00000 10.13263 68.9% - 0s H 0 0 7.0000000 10.13263 44.8% - 0s 0 0 9.76466 0 59 7.00000 9.76466 39.5% - 0s 0 0 9.71826 0 59 7.00000 9.71826 38.8% - 0s 0 0 9.66005 0 61 7.00000 9.66005 38.0% - 0s 0 2 9.65903 0 61 7.00000 9.65903 38.0% - 0s * 29 5 5 8.0000000 9.34402 16.8% 30.2 0s Cutting planes: Clique: 22 Zero half: 3 Explored 35 nodes (1165 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%