Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:49:03 2013

Optimize a model with 2310 rows, 441210 columns and 882210 nonzeros
Presolve time: 1.33s
Presolved: 2310 rows, 441210 columns, 882210 nonzeros
Variable types: 441000 continuous, 210 integer (210 binary)

Root relaxation: objective 4.329097e+05, 13844 iterations, 1.99 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 432909.743    0    7          - 432909.743     -      -    3s
H    0     0                    466811.00000 432909.743  7.26%     -    5s
H    0     0                    437717.00000 432909.743  1.10%     -    6s
     0     0 433519.158    0    6 437717.000 433519.158  0.96%     -    8s
     0     0 433519.158    0    7 437717.000 433519.158  0.96%     -   11s
     0     0 433522.898    0    6 437717.000 433522.898  0.96%     -   13s
     0     0 433589.145    0    6 437717.000 433589.145  0.94%     -   14s
     0     0 433611.120    0    6 437717.000 433611.120  0.94%     -   15s
     0     0 433619.798    0    5 437717.000 433619.798  0.94%     -   16s
     0     0 433626.475    0    5 437717.000 433626.475  0.93%     -   16s
     0     0 433626.507    0    5 437717.000 433626.507  0.93%     -   17s
     0     0 433626.507    0    5 437717.000 433626.507  0.93%     -   18s
     0     0 433626.507    0    5 437717.000 433626.507  0.93%     -   19s
     0     2 433629.624    0    5 437717.000 433629.624  0.93%     -   21s
     5     7 434342.885    4    3 437717.000 433834.648  0.89%   472   25s
H   13    13                    437618.00000 433834.648  0.86%   294   28s
H   14    13                    434883.00000 433834.648  0.24%   276   28s
*   27     9              26    434448.00000 433834.648  0.14%   154   29s
    28    10 434122.792    2    5 434448.000 433907.469  0.12%   167   31s
    47     1     cutoff    5      434448.000 434409.948  0.01%   197   35s

Cutting planes:
  Implied bound: 266
  Flow cover: 13

Explored 48 nodes (39789 simplex iterations) in 35.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.344480000000e+05, best bound 4.344099475524e+05, gap 0.0088%