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Z3 crash bug on nonlinear logic with symbolic root #2615

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wintered opened this issue Oct 4, 2019 · 0 comments

wintered commented Oct 4, 2019 •

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Hi,

the following formula triggers a crash in z3.

(declare-fun a () Real) 
(define-fun b () Real    (root-obj (+ (* (^ x 2)) (* (- 60) x) 1) 1)) 
(assert (= a b (/ a b))) 
(check-sat)

ASSERTION VIOLATION
File: ../src/math/polynomial/upolynomial.cpp
Line: 2756
sign_a == eval_sign_at(sz, p, a)
(C)ontinue, (A)bort, (S)top, (T)hrow exception, Invoke (G)DB

OS: Ubuntu 18.04
Revision: 3dcfbb8

The text was updated successfully, but these errors were encountered:

wintered changed the title ~~Z3 crash bug on nonlinear logic~~ Z3 crash bug on nonlinear logic with symbolic root

NikolajBjorner closed this as completed in

7c10fb8

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