Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:50:00 2013 Optimize a model with 288100 rows, 14400 columns and 871200 nonzeros Presolve removed 19555 rows and 7322 columns Presolve time: 4.51s Presolved: 268545 rows, 7078 columns, 810898 nonzeros Variable types: 45 continuous, 7033 integer (7033 binary) Found heuristic solution: objective 322353.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 21120 2.3220521e+05 0.000000e+00 6.245400e+07 5s 42898 2.4983539e+05 0.000000e+00 0.000000e+00 10s 42898 2.4983539e+05 0.000000e+00 0.000000e+00 10s Root relaxation: objective 2.498354e+05, 42898 iterations, 9.67 seconds Total elapsed time = 15.04s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 249835.389 0 14 322353.000 249835.389 22.5% - 15s H 0 0 249848.00000 249835.389 0.01% - 16s Explored 0 nodes (43043 simplex iterations) in 16.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.498480000000e+05, best bound 2.498360000000e+05, gap 0.0048%