Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:05:04 2013 Optimize a model with 145320 rows, 144120 columns and 576120 nonzeros Presolve removed 9307 rows and 0 columns Presolve time: 1.23s Presolved: 136013 rows, 144120 columns, 557506 nonzeros Variable types: 144000 continuous, 120 integer (120 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19535 1.4818332e+05 1.818551e+04 0.000000e+00 5s 29382 1.8277787e+05 2.140522e+04 0.000000e+00 10s 36557 1.9549842e+05 1.047580e+04 0.000000e+00 15s 40568 1.9655463e+05 0.000000e+00 0.000000e+00 19s Root relaxation: objective 1.965546e+05, 40568 iterations, 18.63 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 196554.634 0 2 - 196554.634 - - 20s H 0 0 198148.00000 196554.634 0.80% - 21s 0 0 196555.495 0 3 198148.000 196555.495 0.80% - 22s 0 0 196555.495 0 3 198148.000 196555.495 0.80% - 23s 0 0 196555.495 0 3 198148.000 196555.495 0.80% - 25s 0 0 196555.495 0 2 198148.000 196555.495 0.80% - 46s 0 0 196555.495 0 3 198148.000 196555.495 0.80% - 47s 0 0 196555.495 0 3 198148.000 196555.495 0.80% - 47s 0 0 196555.495 0 3 198148.000 196555.495 0.80% - 49s 0 2 196556.016 0 3 198148.000 196556.016 0.80% - 54s 2 5 196651.707 2 2 198148.000 196651.707 0.76% 283 55s H 3 3 196931.66667 196651.707 0.14% 189 56s H 4 3 196829.48466 196690.906 0.07% 294 56s H 5 3 196786.44828 196691.453 0.05% 264 56s * 7 2 7 196737.00000 196691.453 0.02% 201 56s Cutting planes: Gomory: 1 Flow cover: 1 Explored 10 nodes (66997 simplex iterations) in 56.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.967370000000e+05, best bound 1.967370000000e+05, gap 0.0%