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trace smt.arith.propagate_eqs smt.arith.random_initial_value smt.arith.eager_eq_axioms Segmentation fault #3548

@muchang

Description

@muchang

Hi,
For this formula:

(set-option :trace true)
(set-option :smt.arith.propagate_eqs false)
(set-option :smt.arith.random_initial_value true)
(set-option :smt.arith.eager_eq_axioms false)
(declare-fun a () Real)
(declare-fun b () Real)
(declare-fun c () Real)
(assert (< (* c (div b (+ a 2))) a))
(check-sat)

Z3 throws out a segmentation fault:

[505] % z3 small.smt2
Segmentation fault
[506] % 
[506] % cat small.smt2
(set-option :trace true)
(set-option :smt.arith.propagate_eqs false)
(set-option :smt.arith.random_initial_value true)
(set-option :smt.arith.eager_eq_axioms false)
(declare-fun a () Real)
(declare-fun b () Real)
(declare-fun c () Real)
(assert (< (* c (div b (+ a 2))) a))
(check-sat)

OS: Ubuntu 18.04
Commit: 9be7bda

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