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This commit is contained in:
Lev Nachmanson 2023-07-05 09:14:57 -07:00
parent e360de6d71
commit 1c907e8d09
1 changed files with 2 additions and 0 deletions
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src/math/lp/int_solver.cpp
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@ -103,6 +103,8 @@ namespace lp {
lp_assert((x + (a1 / a2) * (-u * t) * x1).is_int());
// 1 = (u- l*x2 ) * a1 + (v + l*a1)*x2, for every integer l.
rational d = u * t * x1;
// We can prove that x+alpha*d is integral,
// and any other delta, satisfying x+alpha*delta, is equal to d modulo a2.
delta_plus = mod(d, a2);
lp_assert(delta_plus > 0);
delta_minus = delta_plus - a2;