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overhaul of error messages. Add warning in dimacs conversion

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-07-04 16:04:37 -07:00
parent e622022bf9
commit 1eb8ccad59
31 changed files with 298 additions and 313 deletions
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8
src/api/api_goal.cpp
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@ -30,7 +30,7 @@ extern "C" {
LOG_Z3_mk_goal(c, models, unsat_cores, proofs);
RESET_ERROR_CODE();
if (proofs != 0 && !mk_c(c)->m().proofs_enabled()) {
SET_ERROR_CODE(Z3_INVALID_ARG);
SET_ERROR_CODE(Z3_INVALID_ARG, "proofs are required, but proofs are not enabled on the context");
RETURN_Z3(nullptr);
}
Z3_goal_ref * g = alloc(Z3_goal_ref, *mk_c(c));
@ -119,7 +119,7 @@ extern "C" {
LOG_Z3_goal_formula(c, g, idx);
RESET_ERROR_CODE();
if (idx >= to_goal_ref(g)->size()) {
SET_ERROR_CODE(Z3_INVALID_ARG);
SET_ERROR_CODE(Z3_IOB, nullptr);
RETURN_Z3(nullptr);
}
expr * result = to_goal_ref(g)->form(idx);
@ -198,6 +198,10 @@ extern "C" {
LOG_Z3_goal_to_dimacs_string(c, g);
RESET_ERROR_CODE();
std::ostringstream buffer;
if (!to_goal_ref(g)->is_cnf()) {
warning_msg("goal is not in CNF. This will produce a propositional abstraction. "
"If this is not what you want, then preprocess by optional bit-blasting and applying tseitin-cnf");
}
to_goal_ref(g)->display_dimacs(buffer);
// Hack for removing the trailing '\n'
std::string result = buffer.str();