Gurobi 5.0.1 (linux64) logging started Mon Feb 4 17:23:02 2013 Optimize a model with 1408 rows, 41420 columns and 1664734 nonzeros Presolve removed 25 rows and 155 columns Presolve time: 4.21s Presolved: 1383 rows, 41265 columns, 1660223 nonzeros Variable types: 0 continuous, 41265 integer (41265 binary) Found heuristic solution: objective 22001.000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8952 1.3280922e+04 1.986208e+02 0.000000e+00 5s 10229 1.3300000e+04 0.000000e+00 0.000000e+00 7s Root relaxation: objective 1.330000e+04, 10229 iterations, 6.64 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 13300.0000 0 6 22001.0000 13300.0000 39.5% - 11s H 0 0 14339.000000 13300.0000 7.25% - 11s H 0 0 13347.000000 13300.0000 0.35% - 13s H 0 0 13300.000000 13300.0000 0.0% - 13s Explored 0 nodes (11053 simplex iterations) in 13.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.330000000000e+04, best bound 1.330000000000e+04, gap 0.0%