infeasible integer

hi all dear users

im solving mip model with cplex in gams but at last i face error mip status 119:(integer infeasible or unbounded) and cplex error 1217(:no sulution exist)

im trying many and many time to find source of error but im not succesful, im confused . can anyone to help me??


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N Nazari,

It is not a gams related error. you should reconsidered your model and data. My suggestion is make an .lp output file ( or simply use .lst file) and start writing down your extended model on the paper and check if they are the same. If the were not, you have a chance to fix them and run again, otherwise, you should reconsider you modeling logic or data.

Best,


On Fri, May 30, 2014 at 1:09 PM, n nazari wrote:

hi all dear users

im solving mip model with cplex in gams but at last i face error mip status 119:(integer infeasible or unbounded) and cplex error 1217(:no sulution exist)

im trying many and many time to find source of error but im not succesful, im confused . can anyone to help me??


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\

Babak Saleck Pay
Ph.D Student of Systems Modeling and Analysis
Department of Statistical Sciences and Operations Research
Virginia Commonwealth University
4156 Grace Harris Hall
1015 Floyd Ave.
Richmond, VA

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