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Soundness bug in QF_S in z3-seq #2828

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numairmansur opened this issue Dec 26, 2019 · 1 comment
Closed

Soundness bug in QF_S in z3-seq #2828

numairmansur opened this issue Dec 26, 2019 · 1 comment
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@numairmansur
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Hi,
On the latest nightly build z3-seq gives wrong answer on the following file:

qf_s.smt2.zip

All the formulas at every level in the assertion stack are satisfiable.

$ /z3-nightly/bin/z3 qf_s.smt2
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
unsat

While z3str3 and CVC4 return:

sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat
sat

OS:
NAME="Ubuntu"
VERSION="16.04.5 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.5 LTS"
VERSION_ID="16.04"
@mtrberzi mtrberzi added the string label Jan 3, 2020
@NikolajBjorner
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Fixed, seems #2860 was a duplicate of this

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@mtrberzi @NikolajBjorner @numairmansur