Gurobi 5.0.1 (linux64) logging started Sat Nov 17 08:41:22 2012 Optimize a model with 66959 rows, 57840 columns and 257518 nonzeros Presolve removed 745 rows and 5522 columns Presolve time: 1.99s Presolved: 66214 rows, 52318 columns, 249766 nonzeros Variable types: 0 continuous, 52318 integer (52318 binary) Found heuristic solution: objective 240.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 33507 3.0000630e+00 7.975000e+01 0.000000e+00 5s 44521 3.0000900e+00 5.245938e+02 0.000000e+00 10s 48517 3.0000943e+00 4.410752e+01 0.000000e+00 15s 52217 3.0000970e+00 3.302129e+01 0.000000e+00 20s 55473 3.0000989e+00 9.518917e+01 0.000000e+00 25s 58729 3.0001006e+00 2.858801e+02 0.000000e+00 30s 62133 3.0001030e+00 6.370779e+00 0.000000e+00 35s 65685 3.0001054e+00 9.925000e+01 0.000000e+00 40s 67278 3.0000000e+00 0.000000e+00 0.000000e+00 42s Root relaxation: objective 3.000000e+00, 67278 iterations, 42.13 seconds Total elapsed time = 83.19s Total elapsed time = 88.89s Total elapsed time = 94.99s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 144 240.00000 3.00000 98.8% - 98s H 0 0 3.0000000 3.00000 0.0% - 98s Explored 0 nodes (162228 simplex iterations) in 98.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%