Dear support team,
I was testing a simple model.
When I solved the problem without setting any parameters, the result showed that vratio = 0.1 and logv = -2.30259 = ln(0.1), which satisfied the two constraints.
However, when I turned off the presolve and run the same model again, I got the warning stating that max constraint violation exceeds tolerance. For the resulting decision variables, vratio = 0.1, but logv = -23.0226, which was not ln(0.1) but ln(1) instead.
I am wondering why I got a different result which was not correct when I turned off the presolve. Thank you very much in advance.
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