Originally posted by: quawarty

Hi,

I have run my MIP mathematical model since 5 hours. The Cplex has not stop until now though I have not much constraints.I have checked the feasibility of the model for small instances. It works well. But for a large instances, it tooks much times!
Here my log script look
Tried aggregator 2 times.
MIP Presolve eliminated 130 rows and 159 columns.
MIP Presolve modified 640 coefficients.
Aggregator did 3 substitutions.
Reduced MIP has 498 rows, 449 columns, and 1928 nonzeros.
Reduced MIP has 218 binaries, 231 generals, 0 SOSs, and 0 indicators.
Probing time = 0.00 sec.
Tried aggregator 1 time.
Presolve time = 0.03 sec.
Probing time = 0.00 sec.
Clique table members: 221.
MIP emphasis: balance optimality and feasibility.
MIP search method: dynamic search.
Parallel mode: none, using 1 thread.
Root relaxation solution time = 0.02 sec.
I would like to if there is a possibility to know in advance if the problem is infeasible?
Thanks
#DecisionOptimization
#OPLusingCPLEXOptimizer