Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:03:53 2013 Optimize a model with 68224 rows, 67404 columns and 269124 nonzeros Presolve removed 82 rows and 0 columns Presolve time: 0.31s Presolved: 68142 rows, 67404 columns, 269042 nonzeros Variable types: 67322 continuous, 82 integer (82 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7763 7.1937243e+04 8.328165e+04 0.000000e+00 5s 9713 7.2987813e+04 9.954188e+03 0.000000e+00 10s 10481 7.3066660e+04 0.000000e+00 0.000000e+00 12s Root relaxation: objective 7.306666e+04, 10481 iterations, 11.91 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 73066.6600 0 67 - 73066.6600 - - 12s H 0 0 133448.00000 73066.6600 45.2% - 25s 0 0 100568.966 0 21 133448.000 100568.966 24.6% - 41s H 0 0 116458.00000 100568.966 13.6% - 42s 0 0 106814.107 0 8 116458.000 106814.107 8.28% - 44s H 0 0 115650.53987 106814.107 7.64% - 44s H 0 0 112857.00000 106814.107 5.35% - 44s H 0 0 107089.00000 106814.107 0.26% - 44s 0 0 106875.694 0 7 107089.000 106875.694 0.20% - 45s 0 0 107020.854 0 5 107089.000 107020.854 0.06% - 46s 0 0 107020.854 0 56 107089.000 107020.854 0.06% - 56s 0 0 107020.854 0 13 107089.000 107020.854 0.06% - 66s 0 0 107020.854 0 6 107089.000 107020.854 0.06% - 69s 0 0 107020.854 0 5 107089.000 107020.854 0.06% - 70s 0 0 107045.067 0 4 107089.000 107045.067 0.04% - 71s 0 2 107047.182 0 4 107089.000 107047.182 0.04% - 73s Cutting planes: Gomory: 2 Implied bound: 65 Explored 10 nodes (39691 simplex iterations) in 74.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.070890000000e+05, best bound 1.070803333333e+05, gap 0.0081%