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    RT2 pooling problem data.
    Author: Mohammed Alfaki, Wed Nov  9 15:36:08 2011
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$eolcom #

# Declare sets
    set i    / 1*8  /;
    set s(i) / 1*3  /;
    set t(i) / 6*8  /;
    set k    / 1*8  /;

alias (i,j);

# The arc unit cost c_{ij}
table c(i,j)
          4       5       6       7       8
  1   49.20   49.20    0.00 -180.80    0.00
  2   62.00   62.00 -128.00    0.00  -88.00
  3  300.00  300.00  110.00    0.00    0.00
  4    0.00    0.00 -190.00 -230.00 -150.00
  5    0.00    0.00 -190.00 -230.00 -150.00 ;

# The adjacency matrix (the arcs set A)
table a(i,j)
      4   5   6   7   8
  1   1   1   0   1   0
  2   1   1   1   0   1
  3   1   1   1   0   0
  4   0   0   1   1   1
  5   0   0   1   1   1 ;

# Source qualities/terminal quality upper bounds
table q(i,k)
          1       2       3       4       5       6       7       8
  1    0.82    3.00   99.20   90.50   -0.82   -3.00  -99.20  -90.50
  2    0.62    0.00   87.90   83.50   -0.62    0.00  -87.90  -83.50
  3    0.75    0.00  114.00   98.70   -0.75    0.00 -114.00  -98.70
  6    0.79    3.00  114.00   98.70   -0.74    0.00  -95.00  -85.00
  7    0.79    0.90  114.00   98.70   -0.74    0.00  -96.00  -88.00
  8    0.79    3.00  114.00   98.70   -0.74    0.00  -91.00  -83.50 ;

# Node capacity lower bound
parameter bl(i) /  1     0.00
                   2     0.00
                   3     0.00
                   6     5.00
                   7     5.00
                   8     5.00 / ;

# Node capacity upper bound
parameter bu(i) /  1    60.98
                   2   161.29
                   3     5.00
                   4    12.50
                   5    17.50
                   6   300.00
                   7   300.00
                   8   300.00 / ;

$include xmodel.gms