Problem 'cplex_4_lp.txt' read.
Read time =    0.01 sec.
CPLEX> opt
Tried aggregator 1 time.
MIP Presolve eliminated 37 rows and 173 columns.
MIP Presolve modified 16474 coefficients.
Reduced MIP has 163 rows, 27 columns, and 2895 nonzeros.
Presolve time =    0.09 sec.
Clique table members: 1.
MIP emphasis: balance optimality and feasibility.
MIP search method: dynamic search.
Parallel mode: deterministic, using up to 2 threads.
Root relaxation solution time =    0.00 sec.

        Nodes                                         Cuts/
   Node  Left     Objective  IInf  Best Integer     Best Node    ItCnt     Gap

*     0     0      integral     0        1.0000        1.0000        4    0.00%

Root node processing (before b&c):
  Real time             =    0.01
Parallel b&c, 2 threads:
  Real time             =    0.00
  Sync time (average)   =    0.00
  Wait time (average)   =    0.00
                          -------
Total (root+branch&cut) =    0.01 sec.

Solution pool: 1 solution saved.

MIP - Integer optimal solution:  Objective =  1.0000000000e+00
Solution time =    0.10 sec.  Iterations = 4  Nodes = 0

CPLEX> dis sol var -
Incumbent solution
Variable Name           Solution Value
y0                            1.000000
x124                          1.000000
x196                          1.000000
x198                          1.000000
All other variables in the range 1-200 are 0.