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adding timeout, parameters, statistics

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2013-10-30 13:23:04 -07:00
parent 49aba844b8
commit 9fc84f1389
4 changed files with 69 additions and 20 deletions
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45
src/opt/opt_cmds.cpp
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@ -25,8 +25,6 @@ Notes:
- Deal with push/pop (later)
- Revisit weighted constraints if we want to group them using identifiers.
--*/
#include "opt_cmds.h"
#include "cmd_context.h"
@ -34,6 +32,8 @@ Notes:
#include "opt_context.h"
#include "cancel_eh.h"
#include "scoped_ctrl_c.h"
#include "scoped_timer.h"
#include "parametric_cmd.h"
class opt_context {
@ -152,30 +152,44 @@ public:
}
};
class optimize_cmd : public cmd {
class optimize_cmd : public parametric_cmd {
opt_context& m_opt_ctx;
public:
optimize_cmd(opt_context& opt_ctx):
cmd("optimize"),
parametric_cmd("optimize"),
m_opt_ctx(opt_ctx)
{}
virtual char const * get_descr(cmd_context & ctx) const { return "check sat modulo objective function";}
virtual unsigned get_arity() const { return 0; }
virtual void prepare(cmd_context & ctx) {}
virtual void init_pdescrs(cmd_context & ctx, param_descrs & p) {
insert_timeout(p);
insert_max_memory(p);
p.insert("print_statistics", CPK_BOOL, "(default: false) print statistics.");
}
virtual char const * get_main_descr() const { return "check sat modulo objective function";}
virtual char const * get_usage() const { return "(<keyword> <value>)*"; }
virtual void prepare(cmd_context & ctx) {
parametric_cmd::prepare(ctx);
}
virtual void failure_cleanup(cmd_context & ctx) {
reset(ctx);
}
virtual void execute(cmd_context & ctx) {
params_ref p = ctx.params().merge_default_params(ps());
opt::context& opt = m_opt_ctx();
opt.updt_params(p);
unsigned timeout = p.get_uint("timeout", UINT_MAX);
ptr_vector<expr>::const_iterator it = ctx.begin_assertions();
ptr_vector<expr>::const_iterator end = ctx.end_assertions();
for (; it != end; ++it) {
opt.add_hard_constraint(*it);
}
cancel_eh<opt::context> eh(opt);
cancel_eh<opt::context> eh(opt);
{
scoped_ctrl_c ctrlc(eh);
scoped_timer timer(timeout, &eh);
cmd_context::scoped_watch sw(ctx);
try {
opt.optimize();
@ -187,6 +201,21 @@ public:
ctx.regular_stream() << "(error: " << ex.msg() << "\")" << std::endl;
}
}
if (p.get_bool("print_statistics", false)) {
display_statistics(ctx);
}
}
private:
void display_statistics(cmd_context& ctx) {
statistics stats;
unsigned long long max_mem = memory::get_max_used_memory();
unsigned long long mem = memory::get_allocation_size();
stats.update("time", ctx.get_seconds());
stats.update("memory", static_cast<double>(mem)/static_cast<double>(1024*1024));
stats.update("max memory", static_cast<double>(max_mem)/static_cast<double>(1024*1024));
m_opt_ctx().collect_statistics(stats);
stats.display_smt2(ctx.regular_stream());
}
};