Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:14:08 2013 Optimize a model with 1400 rows, 30500 columns and 96250 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.13s Presolved: 1350 rows, 30450 columns, 91200 nonzeros Variable types: 30100 continuous, 350 integer (350 binary) Root relaxation: objective 1.824192e+05, 2340 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 182419.206 0 3 - 182419.206 - - 0s 0 0 182434.907 0 3 - 182434.907 - - 0s 0 0 182436.487 0 5 - 182436.487 - - 0s 0 0 182436.487 0 5 - 182436.487 - - 0s 0 0 182438.105 0 8 - 182438.105 - - 0s 0 0 182441.300 0 8 - 182441.300 - - 0s 0 0 182441.300 0 8 - 182441.300 - - 0s 0 0 182441.300 0 8 - 182441.300 - - 0s 0 0 182441.421 0 8 - 182441.421 - - 0s 0 0 182441.602 0 8 - 182441.602 - - 1s 0 0 182441.602 0 8 - 182441.602 - - 1s 0 0 182441.602 0 8 - 182441.602 - - 1s 0 0 182441.654 0 8 - 182441.654 - - 1s 0 0 182441.654 0 8 - 182441.654 - - 1s 0 2 182448.078 0 8 - 182448.078 - - 2s * 100 70 95 183831.00292 182782.071 0.57% 9.4 3s H 104 1 182975.48108 182782.071 0.11% 9.1 4s * 119 5 17 182879.22514 182784.764 0.05% 9.2 4s Cutting planes: Flow cover: 6 Explored 125 nodes (4660 simplex iterations) in 4.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.828792251419e+05, best bound 1.828792251419e+05, gap 0.0%