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add projection with witnesses

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expose model based projection with witness creation
This commit is contained in:
Nikolaj Bjorner 2024-11-27 10:26:18 -08:00
parent b7b611d84b
commit d2411567b5
6 changed files with 106 additions and 13 deletions
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41
src/api/api_qe.cpp
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@ -26,6 +26,7 @@ Notes:
#include "api/api_ast_map.h"
#include "api/api_ast_vector.h"
#include "qe/lite/qe_lite_tactic.h"
#include "qe/qe_mbp.h"
#include "muz/spacer/spacer_util.h"
extern "C"
@ -104,6 +105,46 @@ extern "C"
Z3_CATCH_RETURN(nullptr);
}
Z3_ast Z3_API Z3_qe_model_project_with_witness (Z3_context c,
Z3_model mdl,
unsigned num_bounds,
Z3_app const bound[],
Z3_ast body,
Z3_ast_map map)
{
Z3_TRY;
LOG_Z3_qe_model_project_with_witness (c, mdl, num_bounds, bound, body, map);
RESET_ERROR_CODE();
ast_manager& m = mk_c(c)->m();
app_ref_vector vars(m);
if (!to_apps(num_bounds, bound, vars)) {
RETURN_Z3(nullptr);
}
expr_ref_vector fmls(m);
fmls.push_back(to_expr(body));
model_ref model (to_model_ref (mdl));
vector<mbp::def> defs;
qe::mbproj proj(m);
proj(true, vars, *model, fmls, &defs);
expr_ref result (m);
result = m.mk_and(fmls);
mk_c(c)->save_ast_trail(result);
obj_map<ast, ast*> &map_z3 = to_ast_map_ref(map);
for (auto& [v, t] : defs) {
m.inc_ref(v);
m.inc_ref(t);
map_z3.insert(v, t);
}
return of_expr (result);
Z3_CATCH_RETURN(nullptr);
}
Z3_ast Z3_API Z3_model_extrapolate (Z3_context c,
Z3_model m,
Z3_ast fml)