[Symphony] Report Multiple Solutions on Symphony

[振源高]

Dear Mr./Mrs.

I met problems on reporting multiple solutions with SYMPHONY.
I had a binary integer programming problem.
The variables are all binary.
The problem is a decision making problem.
However, there are multiple solutions.

For example:
  Maximize
  obj: wheat + barley
  Subject To
  c1: +2 wheat +3 barley <= 4
  c2: +3 wheat +3 barley <=  4
  c3: +wheat +barley <=  2
  BINARY
  wheat barley
  End
The answers (wheat, barley) I expect are (1, 0) and (0, 1)
but SYMPHONY only report (1, 0)

What should I do to make the program report multiple solutions on command
line or with callable C++ library?
I'll be appreciate for your answering.


Ben
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