Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:30 2013 Optimize a model with 140 rows, 1575 columns and 10575 nonzeros Presolve removed 5 rows and 285 columns Presolve time: 0.01s Presolved: 135 rows, 1290 columns, 9575 nonzeros Variable types: 1255 continuous, 35 integer (35 binary) Root relaxation: objective 1.309958e+04, 64 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 13099.5797 0 4 - 13099.5797 - - 0s 0 0 13099.8532 0 7 - 13099.8532 - - 0s 0 0 13127.0650 0 3 - 13127.0650 - - 0s 0 0 13127.0650 0 3 - 13127.0650 - - 0s H 0 0 13330.179772 13127.0650 1.52% - 0s 0 2 13127.0650 0 3 13330.1798 13127.0650 1.52% - 0s * 8 4 6 13130.100441 13127.0650 0.02% 6.5 0s Cutting planes: Gomory: 1 Flow cover: 1 Explored 11 nodes (250 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.313010044137e+04, best bound 1.312965053443e+04, gap 0.0034%