I'm a researcher and I have a problem with CPLEX. The .lp file containing the model includes the following constraint:
1000000000 x(1,12,0) + T(1,0) - T(12,0) <= 999999992
where x and T are decision variables. The solution returned is x(1,12,0) = 1, T(1,0) = 8, T(12,0) = 8, which violates the constraint. Can someone help? I appreciate it in advance.