z3 python change logic gate children Question: My algorithm needs to modify the children() of the existing logic gate. Suppose i have the following code a = Bool(‘a’) b = Bool(‘b’) c = Bool(‘c’) or_gate = Or(a, b) I want to modify or_gate to be Or(a, c). I have tried the following: or_gate.children()[1] = c …
Is there a way to convert z3.z3.ArithRef Real to Numpy Float64? Question: I recently started using Microsoft Z3 for Theorem Proving and I was wondering if there was a way to convert the Z3 Real Numbers to Python Floating Point Numbers so that I can pass them to other complex functions. This is what I …
Evaluating assigned variables and clauses in Z3? Question: I’m new to z3 so this may be really easy. I have some variables and clauses: d = { "p0": Bool("p0"), "p1": Bool("p1"), "p2": Bool("p2"), "p3": Bool("p3") } d[‘p4’] = And([d["p0"], Or([d["p1"],d["p2"]])]) d[‘p5’] = d[‘p4’] d[‘p6’] = And([d["p3"], d[‘p5’]]) d[‘p7’] = And([d[‘p2’],d[‘p3’]]) I can obtain a satisfying …
How to declare a natural number variable in z3py? Question: I want to reason about natural numbers in my constraints. I know that I can do something like: x = Int(‘x’) and then add a constraint that x >= 0. But is there a better way of doing this so that I don’t have to …
Z3 Not Showing Infinity on Unbounded Optimization in Python Question: I am new to Z3 and trying the examples found here, implementing the examples in python. When I try the examples in the "Unbounded Objectives" section I get seemingly random integer values (not ‘oo’). For the following code: x, y = Ints(‘x y’) opt = …
