Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:41:07 2013 Optimize a model with 39184 rows, 38564 columns and 153884 nonzeros Presolve removed 62 rows and 0 columns Presolve time: 0.17s Presolved: 39122 rows, 38564 columns, 153822 nonzeros Variable types: 38502 continuous, 62 integer (62 binary) Root relaxation: objective 5.288776e+04, 5896 iterations, 3.83 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 52887.7582 0 52 - 52887.7582 - - 4s H 0 0 81892.000000 52887.7582 35.4% - 6s 0 0 70304.4999 0 7 81892.0000 70304.4999 14.1% - 9s H 0 0 74873.375537 70304.4999 6.10% - 9s H 0 0 73806.000000 70304.4999 4.74% - 9s 0 0 70610.5720 0 5 73806.0000 70610.5720 4.33% - 9s H 0 0 71108.000000 70610.5720 0.70% - 10s 0 0 70721.1837 0 3 71108.0000 70721.1837 0.54% - 10s H 0 0 71010.000000 70721.1837 0.41% - 10s 0 0 70748.8704 0 4 71010.0000 70748.8704 0.37% - 10s 0 0 70776.0556 0 3 71010.0000 70776.0556 0.33% - 10s 0 0 70980.5161 0 1 71010.0000 70980.5161 0.04% - 11s * 0 0 0 70985.000000 70985.0000 0.0% - 11s Cutting planes: Implied bound: 56 Explored 0 nodes (10047 simplex iterations) in 11.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.098500000000e+04, best bound 7.098500000000e+04, gap 0.0%