CVC4 crashes with --check-unsat-cores

[wintered]

Hi,

CVC4 with --check-unsat-cores option crashes on the following formula

(set-logic ALL)
(declare-fun a () Int)
(declare-fun b () Int)
(declare-fun c () Int)
(assert (= b 0))
(assert (or (= a 6) (= a 9)))
(assert (> (- c b) 11))
(assert (not (= 0 (- c a) 3)))
(assert (or (= a 0) (= (- a c) 1)))
(assert (or (> (- c a) 2) (<= (- c a) 3)))

Fatal failure within void CVC4::ProofManager::traceDeps(CVC4::TNode, CVC4::CDExprSet*) at /home/suz/software/CVC4/src/proof/proof_manager.cpp:317
Internal error detectedCannot trace dependence information back to input assertion:
`(let ((_let_0 (+ (- 3) c))) (or (<= a _let_0) (>= a _let_0)))'
Aborted

OS: Ubuntu 18.04
Revision: 11bc0e4

[nafur]

This issue has been resolved with b90cfb4. I thus close this issue.