Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:34:21 2013 Optimize a model with 142975 rows, 9025 columns and 433200 nonzeros Presolve removed 8175 rows and 4557 columns Presolve time: 1.58s Presolved: 134800 rows, 4468 columns, 408354 nonzeros Variable types: 43 continuous, 4425 integer (4425 binary) Found heuristic solution: objective 183478.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 30408 1.2711657e+05 0.000000e+00 1.244642e+07 5s 43391 1.3514717e+05 0.000000e+00 0.000000e+00 7s 43391 1.3514717e+05 0.000000e+00 0.000000e+00 7s Root relaxation: objective 1.351472e+05, 43391 iterations, 6.89 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 135147.167 0 14 183478.000 135147.167 26.3% - 9s H 0 0 135165.00000 135147.167 0.01% - 9s H 0 0 135163.00000 135147.167 0.01% - 9s H 0 0 135159.00000 135147.167 0.01% - 9s Explored 0 nodes (43653 simplex iterations) in 9.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.351590000000e+05, best bound 1.351480000000e+05, gap 0.0081%