Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:29:26 2013 Optimize a model with 95157 rows, 94187 columns and 376457 nonzeros Presolve removed 5014 rows and 0 columns Presolve time: 0.68s Presolved: 90143 rows, 94187 columns, 366429 nonzeros Variable types: 94090 continuous, 97 integer (97 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20341 1.4478921e+05 6.236980e+03 0.000000e+00 5s 23140 1.4867784e+05 0.000000e+00 0.000000e+00 6s Root relaxation: objective 1.486778e+05, 23140 iterations, 6.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 148677.838 0 3 - 148677.838 - - 7s H 0 0 150924.00000 148677.838 1.49% - 7s 0 0 148678.137 0 4 150924.000 148678.137 1.49% - 8s 0 0 148678.137 0 4 150924.000 148678.137 1.49% - 8s H 0 0 150173.81176 148678.137 1.00% - 11s H 0 0 149250.00000 148678.137 0.38% - 11s 0 0 148678.137 0 3 149250.000 148678.137 0.38% - 17s 0 0 148678.320 0 5 149250.000 148678.320 0.38% - 17s 0 0 148678.320 0 5 149250.000 148678.320 0.38% - 18s 0 2 148679.135 0 5 149250.000 148679.135 0.38% - 22s H 16 15 149157.00000 148716.688 0.30% 90.9 24s H 17 14 149003.00000 148716.688 0.19% 93.4 24s H 18 14 148991.87500 148716.688 0.18% 88.4 24s * 23 13 20 148931.00000 148716.688 0.14% 73.2 24s 30 20 148854.908 9 2 148931.000 148733.431 0.13% 83.3 25s H 40 6 148783.00000 148738.194 0.03% 71.5 25s H 42 4 148775.00000 148741.515 0.02% 68.9 25s * 43 4 7 148753.00000 148741.515 0.01% 67.3 25s Cutting planes: Gomory: 2 Flow cover: 4 Explored 44 nodes (37607 simplex iterations) in 25.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.487530000000e+05, best bound 1.487415153022e+05, gap 0.0077%