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conflict logging

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This commit is contained in:
Jakob Rath 2022-04-12 16:06:20 +02:00
parent 00fa4b3320
commit 9fa5096776
11 changed files with 210 additions and 26 deletions
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7
src/math/polysat/explain.cpp
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@ -69,6 +69,7 @@ namespace polysat {
core.insert(c1);
core.insert(c2);
core.insert(~c);
core.log_inference("superposition 1");
return l_true;
case l_undef:
// Ensure that c is assigned and justified
@ -79,6 +80,7 @@ namespace polysat {
// gets created, c is assigned to false by evaluation propagation
// It should have been assigned true by unit propagation.
core.replace(c2, c, premises);
core.log_inference("superposition 2");
SASSERT_EQ(l_true, c.bvalue(s)); // TODO: currently violated, check this!
SASSERT(c.is_currently_false(s));
break;
@ -90,6 +92,7 @@ namespace polysat {
// c alone (+ variables) is now enough to represent the conflict.
core.reset();
core.set(c);
core.log_inference("superposition 3");
return c->contains_var(v) ? l_undef : l_true;
}
return l_false;
@ -171,7 +174,7 @@ namespace polysat {
vector<signed_constraint> premises;
premises.push_back(c);
premises.push_back(eq);
core.insert(c2, premises);
core.insert(c2, premises); // TODO: insert but then we reset? ... (this call does not insert into the core)
}
// core.keep(c2); // adds propagation of c to the search stack
core.reset();
@ -182,9 +185,11 @@ namespace polysat {
core.insert(eq);
core.insert(c);
core.insert(~c2);
core.log_inference("superposition 4");
return true;
}
core.set(c2);
core.log_inference("superposition 5");
return true;
}
return false;