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bugfix

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This commit is contained in:
Jakob Rath 2023-07-21 12:45:46 +02:00
parent e1bb0f5377
commit e7c9112beb
2 changed files with 6 additions and 3 deletions
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7
src/math/polysat/slicing.cpp
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@ -610,9 +610,12 @@ namespace polysat {
SASSERT(!has_sub(x)); SASSERT(!has_sub(x));
SASSERT(!has_sub(y)); SASSERT(!has_sub(y));
if (width(x) == width(y)) { if (width(x) == width(y)) {
if (!merge_base(x, y, dep)) if (!merge_base(x, y, dep)) {
xs.clear();
ys.clear();
return false; return false;
} }
}
else if (width(x) > width(y)) { else if (width(x) > width(y)) {
// need to split x according to y // need to split x according to y
mk_slice(x, width(y) - 1, 0, xs, true); mk_slice(x, width(y) - 1, 0, xs, true);
@ -785,7 +788,7 @@ namespace polysat {
continue; continue;
pdd const body = a.is_one() ? (m.mk_var(x) - p) : (m.mk_var(x) + p); pdd const body = a.is_one() ? (m.mk_var(x) - p) : (m.mk_var(x) + p);
// c is either x = body or x != body, depending on polarity // c is either x = body or x != body, depending on polarity
LOG("Equation from lit(" << c.blit() << ") " << c << ": v" << x << " = " << body); LOG("Equation from lit(" << c.blit() << ") " << c << ": v" << x << (c.is_positive() ? " = " : " != ") << body);
if (!add_equation(x, body, c.blit())) { if (!add_equation(x, body, c.blit())) {
SASSERT(is_conflict()); SASSERT(is_conflict());
return; return;

2
src/test/slicing.cpp
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@ -318,7 +318,7 @@ void tst_slicing() {
using namespace polysat; using namespace polysat;
test_slicing::test1(); test_slicing::test1();
test_slicing::test2(); test_slicing::test2();
// test_slicing::test3(); test_slicing::test3();
test_slicing::test4(); test_slicing::test4();
test_slicing::test5(); test_slicing::test5();
test_slicing::test6(); test_slicing::test6();