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pb-preprocess assertion violation at ../src/tactic/core/pb_preprocess_tactic.cpp Line: 578 #3045

@muchang

Description

@muchang

Hi,
For this formula:

(declare-fun a () Bool)
(declare-fun b () Bool)
(declare-fun c () Bool)
(assert (and (or (and a b) a) c))
(check-sat-using pb-preprocess)

Z3 throws out an assertion violation:

ASSERTION VIOLATION
File: ../src/tactic/core/pb_preprocess_tactic.cpp
Line: 578
pure_args(a)
(C)ontinue, (A)bort, (S)top, (T)hrow exception, Invoke (G)DB

OS: Ubuntu 18.04
Commit: 006caea

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