mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-29 11:55:51 +00:00
Code Activity

add a basic printer into graphviz (http://graphviz.org/) for proofs

Browse source 
- proofs are output into file `proof.dot` if `(get-proof-graph)` is
  in the input
- use `dot -Txlib proof.dot` to see the proof
- use `dot -Tsvg proof.dot` to get a svg file
This commit is contained in:
Simon Cruanes 2017-10-24 09:39:16 +02:00
parent 7f254710aa
commit d630838b38
4 changed files with 172 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

21
src/cmd_context/basic_cmds.cpp
View file

@ -20,6 +20,7 @@ Notes:
#include "util/version.h"
#include "ast/ast_smt_pp.h"
#include "ast/ast_smt2_pp.h"
#include "ast/ast_pp_dot.h"
#include "ast/ast_pp.h"
#include "ast/array_decl_plugin.h"
#include "ast/pp.h"
@ -202,6 +203,25 @@ ATOMIC_CMD(get_proof_cmd, "get-proof", "retrieve proof", {
}
});
ATOMIC_CMD(get_proof_graph_cmd, "get-proof-graph", "retrieve proof and print it in graphviz", {
if (!ctx.produce_proofs())
throw cmd_exception("proof construction is not enabled, use command (set-option :produce-proofs true)");
if (!ctx.has_manager() ||
ctx.cs_state() != cmd_context::css_unsat)
throw cmd_exception("proof is not available");
proof_ref pr(ctx.m());
pr = ctx.get_check_sat_result()->get_proof();
if (pr == 0)
throw cmd_exception("proof is not available");
if (ctx.well_sorted_check_enabled() && !is_well_sorted(ctx.m(), pr)) {
throw cmd_exception("proof is not well sorted");
}
// TODO: specify file into which the proof should be printed
std::ofstream out("proof.dot");
out << ast_pp_dot(pr) << std::endl;
});
static void print_core(cmd_context& ctx) {
ptr_vector<expr> core;
ctx.get_check_sat_result()->get_unsat_core(core);
@ -840,6 +860,7 @@ void install_basic_cmds(cmd_context & ctx) {
ctx.insert(alloc(get_assignment_cmd));
ctx.insert(alloc(get_assertions_cmd));
ctx.insert(alloc(get_proof_cmd));
ctx.insert(alloc(get_proof_graph_cmd));
ctx.insert(alloc(get_unsat_core_cmd));
ctx.insert(alloc(set_option_cmd));
ctx.insert(alloc(get_option_cmd));