Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:25:26 2012 Optimize a model with 1095 rows, 1080 columns and 3551 nonzeros Presolve removed 146 rows and 98 columns Presolve time: 0.02s Presolved: 949 rows, 982 columns, 3198 nonzeros Variable types: 656 continuous, 326 integer (326 binary) Root relaxation: objective 1.000667e+05, 489 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 100066.724 0 162 - 100066.724 - - 0s H 0 0 150194.00000 100066.724 33.4% - 0s 0 0 120066.381 0 47 150194.000 120066.381 20.1% - 0s 0 0 121658.503 0 49 150194.000 121658.503 19.0% - 0s 0 0 121890.570 0 38 150194.000 121890.570 18.8% - 0s 0 0 121958.988 0 23 150194.000 121958.988 18.8% - 0s 0 0 121967.970 0 21 150194.000 121967.970 18.8% - 0s 0 0 121968.028 0 27 150194.000 121968.028 18.8% - 0s H 0 0 122737.00000 121968.028 0.63% - 0s 0 2 121968.075 0 27 122737.000 121968.075 0.63% - 0s H 27 27 122463.00000 121969.140 0.40% 6.0 0s H 586 223 122324.00000 122043.948 0.23% 5.7 0s H 846 298 122255.00000 122054.565 0.16% 6.3 0s H 1198 242 122249.00000 122123.492 0.10% 5.8 1s * 1202 202 39 122226.00000 122123.492 0.08% 5.8 1s Cutting planes: Gomory: 15 Cover: 3 Flow cover: 71 Flow path: 48 Explored 1682 nodes (9846 simplex iterations) in 1.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.222260000000e+05, best bound 1.222138005952e+05, gap 0.0100%