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working on smt2 and api

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This commit is contained in:
Ken McMillan 2013-03-26 17:25:54 -07:00
parent 2b93537366
commit 78848f3ddd
30 changed files with 1307 additions and 94 deletions
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80
src/interp/iz3base.cpp
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@ -84,10 +84,9 @@ iz3base::range &iz3base::ast_scope(ast t){
void iz3base::print(const std::string &filename){
ast t = make(And,cnsts);
assert(0 && "not implemented");
// Z3_string smt = Z3_benchmark_to_smtlib_string(ctx,"iZ3","QFLIA","unsat","",0,0,t);
// std::ofstream f(filename.c_str());
// f << smt;
std::ofstream f(filename.c_str());
print_sat_problem(f,t);
f.close();
}
@ -246,3 +245,76 @@ bool iz3base::is_sat(ast f){
#endif
}
void iz3base::find_children(const hash_set<ast> &cnsts_set,
const ast &tree,
std::vector<ast> &cnsts,
std::vector<int> &parents,
std::vector<ast> &conjuncts,
std::vector<int> &children,
std::vector<int> &pos_map,
bool merge
){
std::vector<int> my_children;
std::vector<ast> my_conjuncts;
if(op(tree) == Interp){ // if we've hit an interpolation position...
find_children(cnsts_set,arg(tree,0),cnsts,parents,my_conjuncts,my_children,pos_map,merge);
if(my_conjuncts.empty())
my_conjuncts.push_back(mk_true()); // need at least one conjunct
int root = cnsts.size() + my_conjuncts.size() - 1;
for(unsigned i = 0; i < my_conjuncts.size(); i++){
parents.push_back(root);
cnsts.push_back(my_conjuncts[i]);
}
for(unsigned i = 0; i < my_children.size(); i++)
parents[my_children[i]] = root;
children.push_back(root);
pos_map.push_back(root);
}
else {
if(op(tree) == And){
int nargs = num_args(tree);
for(int i = 0; i < nargs; i++)
find_children(cnsts_set,arg(tree,i),cnsts,parents,my_conjuncts,my_children,pos_map,merge);
}
if(cnsts_set.find(tree) != cnsts_set.end()){
if(merge && !my_conjuncts.empty())
my_conjuncts.back() = mk_and(my_conjuncts.back(),tree);
else
my_conjuncts.push_back(tree);
}
for(unsigned i = 0; i < my_children.size(); i++)
children.push_back(my_children[i]);
for(unsigned i = 0; i < my_conjuncts.size(); i++)
conjuncts.push_back(my_conjuncts[i]);
}
}
void iz3base::to_parents_vec_representation(const std::vector<ast> &_cnsts,
const ast &tree,
std::vector<ast> &cnsts,
std::vector<int> &parents,
std::vector<ast> &theory,
std::vector<int> &pos_map,
bool merge
){
std::vector<int> my_children;
std::vector<ast> my_conjuncts;
hash_set<ast> cnsts_set;
for(unsigned i = 0; i < _cnsts.size(); i++)
cnsts_set.insert(_cnsts[i]);
ast _tree = (op(tree) != Interp) ? make(Interp,tree) : tree;
find_children(cnsts_set,_tree,cnsts,parents,my_conjuncts,my_children,pos_map,merge);
if(op(tree) != Interp) pos_map.pop_back();
parents[parents.size()-1] = SHRT_MAX;
// rest of the constraints are the background theory
hash_set<ast> used_set;
for(unsigned i = 0; i < cnsts.size(); i++)
used_set.insert(cnsts[i]);
for(unsigned i = 0; i < _cnsts.size(); i++)
if(used_set.find(_cnsts[i]) == used_set.end())
theory.push_back(_cnsts[i]);
}