How to directly add constraints printed in python console within z3 automatically?

Question

I have a set of constraints printed in my console which are as follows,

Region 1 
x3 > 0.75  
x2 <= 4.8500001430511475  
x3 <= 1.699999988079071  

Region 2  
x3 > 0.75  
x3 <= 1.75  
x2 <= 4.950000047683716  
x2 <= 4.450000047683716 

How do I automatically add these constraints within z3 and join these regions (defined by the two separate sets of inequalities) together?

Any help would be appreciated. Thanks!

Answer 1

Assuming x2 and x3 are reals, you can code this as:

from z3 import *

s = Solver()
x2, x3 = Reals('x2 x3')

s.add(x3 > 0.75)
s.add(x2 <= 4.8500001430511475)
s.add(x3 <= 1.699999988079071)

s.add(x3 > 0.75)
s.add(x3 <= 1.75)
s.add(x2 <= 4.950000047683716)
s.add(x2 <= 4.450000047683716)

print(s)

Which prints:

[x3 > 3/4,
 x2 <= 1940000057220459/400000000000000,
 x3 <= 1699999988079071/1000000000000000,
 x3 > 3/4,
 x3 <= 7/4,
 x2 <= 1237500011920929/250000000000000,
 x2 <= 1112500011920929/250000000000000]