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interp handle mystery arith lemmas

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This commit is contained in:
Ken McMillan 2014-05-13 17:28:22 -07:00
parent 669fded98a
commit c9e9b30af6
2 changed files with 18 additions and 1 deletions
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14
src/interp/iz3translate.cpp
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@ -1581,6 +1581,12 @@ public:
return res;
}
ast ArithMysteryRule(const ast &con, const std::vector<ast> &prems, const std::vector<Iproof::node> &args){
// Hope for the best!
Iproof::node guess = reconstruct_farkas(prems,args,con);
return guess;
}
struct CannotCombineEqPropagate {};
void CombineEqPropagateRec(const ast &proof, std::vector<ast> &prems, std::vector<Iproof::node> &args, ast &eqprem){
@ -1892,6 +1898,14 @@ public:
res = EqPropagate(con,prems,args);
break;
}
case ArithMysteryKind: {
// Z3 hasn't told us what kind of lemma this is -- maybe we can guess
std::vector<ast> prems(nprems);
for(unsigned i = 0; i < nprems; i++)
prems[i] = prem(proof,i);
res = ArithMysteryRule(con,prems,args);
break;
}
default:
throw unsupported();
}