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smt.arith.reflect rewriter.flat proof Assertion violation at ../src/smt/theory_arith.h Line: 534 #3550

@muchang

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@muchang

Hi,
For this formula:

(set-option :smt.arith.reflect false)
(set-option :rewriter.flat false)
(set-option :proof true)
(declare-fun a () Real)
(declare-fun b () Real)
(assert (< b (* (* a a) 2) b))
(check-sat)

Z3 throws out an assertion violation:

ASSERTION VIOLATION
File: ../src/smt/theory_arith.h
Line: 534
get_context().e_internalized(v)
(C)ontinue, (A)bort, (S)top, (T)hrow exception, Invoke (G)DB

OS: Ubuntu 18.04
Commit: 9be7bda

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