https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=56270
std::vector<InputStack> next_sats;
                        next_sats.push_back(sats[0] + res.nsat);
                        for (size_t j = 1; j < sats.size(); ++j) next_sats.push_back((sats[j] + res.nsat) | (std::move(sats[j - 1]) + res.sat));
                        next_sats.push_back(std::move(sats[sats.size() - 1]) + std::move(res.sat));
                        
                        sats = std::move(next_sats);
                    }
                    
                    
                    InputStack nsat = INVALID;
                    for (size_t i = 0; i < sats.size(); ++i) {
                        
                        
                        
                        
                        
                        
                        if (i != 0 && i != node.k) sats[i].SetMalleable().SetNonCanon();
                        
                        if (i != node.k) nsat = std::move(nsat) | std::move(sats[i]);
                    }
                    assert(node.k <= sats.size());
                    return {std::move(nsat), std::move(sats[node.k])};
                }
                case Fragment::OLDER: {
                    return {INVALID, ctx.CheckOlder(node.k) ? EMPTY : INVALID};
                }
                case Fragment::AFTER: {
                    return {INVALID, ctx.CheckAfter(node.k) ? EMPTY : INVALID};
                }