Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:36:30 2013

Optimize a model with 140 rows, 204 columns and 320 nonzeros
Model has 40 quadratic constraints
Presolve removed 20 rows and 20 columns
Presolve time: 0.24s
Presolved: 240 rows, 304 columns, 520 nonzeros
Variable types: 284 continuous, 20 integer (20 binary)

Root relaxation: objective 0.000000e+00, 80 iterations, 0.00 seconds

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

H    0     0                    2595.7048860          -     -      -    0s
     0     0    0.00000    0    5 2595.70489    0.00000   100%     -    0s
     0     2    0.00000    0   18 2595.70489    0.00000   100%     -    0s
*   32    32              20    2111.8024817    0.00000   100%  31.9    0s
*   33    29              20    2077.3622112    0.00000   100%  30.9    0s
*   73    61              20    1978.1199022   85.51023  95.7%  27.6    0s
H  109    81                    1947.0543219   85.51023  95.6%  33.9    0s
*  109    81              20    1947.0539421   85.51023  95.6%  33.9    0s
H  644   383                    1857.8704276  337.22686  81.8%  52.2    2s
*  644   365              33    1857.8703322  337.22686  81.8%  52.2    2s
  2387   645 1184.88378   21   12 1857.87033  959.50904  48.4%  56.8    5s
  5433  1076 1835.30739   25    8 1857.87033 1246.82282  32.9%  57.7   10s
  8649  1168     cutoff   27      1857.87033 1385.94928  25.4%  56.1   15s
 11966   891 1809.62735   27    6 1857.87033 1510.71476  18.7%  54.9   20s
 15126   131     cutoff   26      1857.87033 1780.40355  4.17%  52.9   25s

Cutting planes:

Explored 15293 nodes (804657 simplex iterations) in 25.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.857870358219e+03, best bound 1.857870358219e+03, gap 0.0%