virtual void execute(cmd_context & ctx) {
if (m_target == 0)
throw cmd_exception("invalid simplify command, argument expected");
expr_ref r(ctx.m());
proof_ref pr(ctx.m());
if (m_params.get_bool("som", false))
m_params.set_bool("flat", true);
th_rewriter s(ctx.m(), m_params);
unsigned cache_sz;
unsigned num_steps = 0;
unsigned timeout = m_params.get_uint("timeout", UINT_MAX);
unsigned rlimit = m_params.get_uint("rlimit", UINT_MAX);
bool failed = false;
cancel_eh<reslimit> eh(ctx.m().limit());
{
scoped_rlimit _rlimit(ctx.m().limit(), rlimit);
scoped_ctrl_c ctrlc(eh);
scoped_timer timer(timeout, &eh);
cmd_context::scoped_watch sw(ctx);
try {
s(m_target, r, pr);
}
catch (z3_error & ex) {
throw ex;
}
catch (z3_exception & ex) {
ctx.regular_stream() << "(error \"simplifier failed: " << ex.msg() << "\")" << std::endl;
failed = true;
r = m_target;
}
cache_sz = s.get_cache_size();
num_steps = s.get_num_steps();
s.cleanup();
}
if (m_params.get_bool("print", true)) {
ctx.display(ctx.regular_stream(), r);
ctx.regular_stream() << std::endl;
}
if (!failed && m_params.get_bool("print_proofs", false)) {
ast_smt_pp pp(ctx.m());
pp.set_logic(ctx.get_logic().str().c_str());
pp.display_expr_smt2(ctx.regular_stream(), pr.get());
ctx.regular_stream() << std::endl;
}
if (m_params.get_bool("print_statistics", false)) {
shared_occs s1(ctx.m());
if (!failed)
s1(r);
unsigned long long max_mem = memory::get_max_used_memory();
unsigned long long mem = memory::get_allocation_size();
ctx.regular_stream() << "(:time " << std::fixed << std::setprecision(2) << ctx.get_seconds() << " :num-steps " << num_steps
<< " :memory " << std::fixed << std::setprecision(2) << static_cast<double>(mem)/static_cast<double>(1024*1024)
<< " :max-memory " << std::fixed << std::setprecision(2) << static_cast<double>(max_mem)/static_cast<double>(1024*1024)
<< " :cache-size: " << cache_sz
<< " :num-nodes-before " << get_num_exprs(m_target);
if (!failed)
ctx.regular_stream() << " :num-shared " << s1.num_shared() << " :num-nodes " << get_num_exprs(r);
ctx.regular_stream() << ")" << std::endl;
}
}
unsigned goal::num_exprs() const {
expr_fast_mark1 visited;
unsigned sz = size();
unsigned r = 0;
for (unsigned i = 0; i < sz; i++) {
r += get_num_exprs(form(i), visited);
}
return r;
}
unsigned get_num_exprs(expr * n) {
expr_fast_mark1 visited;
return get_num_exprs(n, visited);
}
