Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:49:38 2013 Optimize a model with 288100 rows, 14400 columns and 871200 nonzeros Presolve removed 21342 rows and 7347 columns Presolve time: 4.64s Presolved: 266758 rows, 7053 columns, 804484 nonzeros Variable types: 36 continuous, 7017 integer (7017 binary) Found heuristic solution: objective 359409.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20088 2.8369604e+05 0.000000e+00 4.154919e+07 5s 37786 2.9588763e+05 0.000000e+00 0.000000e+00 9s 37786 2.9588763e+05 0.000000e+00 0.000000e+00 9s Root relaxation: objective 2.958876e+05, 37786 iterations, 8.56 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 295887.632 0 18 359409.000 295887.632 17.7% - 14s H 0 0 295894.00000 295887.632 0.00% - 14s Explored 0 nodes (38065 simplex iterations) in 14.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.958940000000e+05, best bound 2.958880000000e+05, gap 0.0020%