#include "src/kernel/activity/MutexImpl.hpp"
#include "src/kernel/actor/SimcallObserver.hpp"
#include "src/mc/Session.hpp"
-#include "src/mc/checker/Checker.hpp"
+#include "src/mc/explo/Exploration.hpp"
#include "src/mc/mc_base.hpp"
-#include "src/mc/mc_comm_pattern.hpp"
#include "src/mc/mc_exit.hpp"
#include "src/mc/mc_pattern.hpp"
#include "src/mc/mc_private.hpp"
namespace simgrid {
namespace mc {
-static inline const char* get_color(int id)
-{
- static constexpr std::array<const char*, 13> colors{{"blue", "red", "green3", "goldenrod", "brown", "purple",
- "magenta", "turquoise4", "gray25", "forestgreen", "hotpink",
- "lightblue", "tan"}};
- return colors[id % colors.size()];
-}
-
-static std::string pointer_to_string(void* pointer)
-{
- return XBT_LOG_ISENABLED(Api, xbt_log_priority_verbose) ? xbt::string_printf("%p", pointer) : "(verbose only)";
-}
-
-static std::string buff_size_to_string(size_t buff_size)
-{
- return XBT_LOG_ISENABLED(Api, xbt_log_priority_verbose) ? std::to_string(buff_size) : "(verbose only)";
-}
-
-/* Search an enabled transition for the given process.
- *
- * This can be seen as an iterator returning the next transition of the process.
- *
- * We only consider the processes that are both
- * - marked "to be interleaved" in their ActorState (controlled by the checker algorithm).
- * - which simcall can currently be executed (like a comm where the other partner is already known)
- * Once we returned the last enabled transition of a process, it is marked done.
- *
- * Things can get muddled with the WAITANY and TESTANY simcalls, that are rewritten on the fly to a bunch of WAIT
- * (resp TEST) transitions using the transition.argument field to remember what was the last returned sub-transition.
- */
-static inline smx_simcall_t MC_state_choose_request_for_process(const RemoteProcess& process, simgrid::mc::State* state,
- smx_actor_t actor)
-{
- /* reset the outgoing transition */
- simgrid::mc::ActorState* procstate = &state->actor_states_[actor->get_pid()];
- state->transition_.aid_ = -1;
- state->transition_.times_considered_ = -1;
- state->transition_.textual[0] = '\0';
- state->executed_req_.call_ = Simcall::NONE;
-
- if (not simgrid::mc::actor_is_enabled(actor))
- return nullptr; // Not executable in the application
-
- smx_simcall_t req = nullptr;
- if (actor->simcall_.observer_ != nullptr) {
- state->transition_.times_considered_ = procstate->get_times_considered_and_inc();
- if (actor->simcall_.mc_max_consider_ <= procstate->get_times_considered())
- procstate->set_done();
- req = &actor->simcall_;
- } else {
- procstate->set_done();
- state->transition_.times_considered_ = 0;
- req = &actor->simcall_;
- }
- if (not req)
- return nullptr;
-
- state->transition_.aid_ = actor->get_pid();
- state->executed_req_ = *req;
-
- return req;
-}
-
/** Statically "upcast" a s_smx_actor_t into an ActorInformation
*
* This gets 'actorInfo' from '&actorInfo->copy'. It upcasts in the
* sense that we could achieve the same thing by having ActorInformation
* inherit from s_smx_actor_t but we don't really want to do that.
*/
-simgrid::mc::ActorInformation* Api::actor_info_cast(smx_actor_t actor) const
+static simgrid::mc::ActorInformation* actor_info_cast(smx_actor_t actor)
{
simgrid::mc::ActorInformation temp;
std::size_t offset = (char*)temp.copy.get_buffer() - (char*)&temp;
return process_info;
}
-bool Api::requests_are_dependent(RemotePtr<kernel::actor::SimcallObserver> obs1,
- RemotePtr<kernel::actor::SimcallObserver> obs2) const
+simgrid::mc::Exploration* Api::initialize(char** argv, simgrid::mc::CheckerAlgorithm algo) const
{
- xbt_assert(mc_model_checker != nullptr, "Must be called from MCer");
-
- return mc_model_checker->requests_are_dependent(obs1, obs2);
-}
-
-xbt::string const& Api::get_actor_host_name(smx_actor_t actor) const
-{
- if (mc_model_checker == nullptr)
- return actor->get_host()->get_name();
-
- const simgrid::mc::RemoteProcess* process = &mc_model_checker->get_remote_process();
-
- // Read the simgrid::xbt::string in the MCed process:
- simgrid::mc::ActorInformation* info = actor_info_cast(actor);
-
- if (not info->hostname) {
- Remote<s4u::Host> temp_host = process->read(remote(actor->get_host()));
- auto remote_string_address = remote(&xbt::string::to_string_data(temp_host.get_buffer()->get_impl()->get_name()));
- simgrid::xbt::string_data remote_string = process->read(remote_string_address);
- std::vector<char> hostname(remote_string.len + 1);
- // no need to read the terminating null byte, and thus hostname[remote_string.len] is guaranteed to be '\0'
- process->read_bytes(hostname.data(), remote_string.len, remote(remote_string.data));
- info->hostname = &mc_model_checker->get_host_name(hostname.data());
- }
- return *info->hostname;
-}
-
-xbt::string const& Api::get_actor_name(smx_actor_t actor) const
-{
- if (mc_model_checker == nullptr)
- return actor->get_name();
-
- simgrid::mc::ActorInformation* info = actor_info_cast(actor);
- if (info->name.empty()) {
- const simgrid::mc::RemoteProcess* process = &mc_model_checker->get_remote_process();
-
- simgrid::xbt::string_data string_data = simgrid::xbt::string::to_string_data(actor->name_);
- info->name = process->read_string(remote(string_data.data), string_data.len);
- }
- return info->name;
-}
-
-std::string Api::get_actor_string(smx_actor_t actor) const
-{
- std::string res;
- if (actor) {
- res = "(" + std::to_string(actor->get_pid()) + ")";
- if (actor->get_host())
- res += std::string(get_actor_host_name(actor)) + " (" + std::string(get_actor_name(actor)) + ")";
- else
- res += get_actor_name(actor);
- } else
- res = "(0) ()";
- return res;
-}
-
-std::string Api::get_actor_dot_label(smx_actor_t actor) const
-{
- std::string res = "(" + std::to_string(actor->get_pid()) + ")";
- if (actor->get_host())
- res += get_actor_host_name(actor);
- return res;
-}
-
-simgrid::mc::Checker* Api::initialize(char** argv, simgrid::mc::CheckerAlgorithm algo) const
-{
- auto session = new simgrid::mc::Session([argv] {
+ simgrid::mc::session_singleton = std::make_unique<simgrid::mc::Session>([argv] {
int i = 1;
while (argv[i] != nullptr && argv[i][0] == '-')
i++;
xbt_die("The model-checked process failed to exec(%s): %s", argv[i], strerror(errno));
});
- simgrid::mc::Checker* checker;
+ simgrid::mc::Exploration* explo;
switch (algo) {
case CheckerAlgorithm::CommDeterminism:
- checker = simgrid::mc::create_communication_determinism_checker(session);
+ explo = simgrid::mc::create_communication_determinism_checker(session_singleton.get());
break;
case CheckerAlgorithm::UDPOR:
- checker = simgrid::mc::create_udpor_checker(session);
+ explo = simgrid::mc::create_udpor_checker(session_singleton.get());
break;
case CheckerAlgorithm::Safety:
- checker = simgrid::mc::create_safety_checker(session);
+ explo = simgrid::mc::create_safety_checker(session_singleton.get());
break;
case CheckerAlgorithm::Liveness:
- checker = simgrid::mc::create_liveness_checker(session);
+ explo = simgrid::mc::create_liveness_checker(session_singleton.get());
break;
default:
THROW_IMPOSSIBLE;
}
- // FIXME: session and checker are never deleted
- simgrid::mc::session_singleton = session;
- mc_model_checker->setChecker(checker);
- return checker;
+ mc_model_checker->set_exploration(explo);
+ return explo;
}
std::vector<simgrid::mc::ActorInformation>& Api::get_actors() const
return mc_model_checker->get_remote_process().get_maxpid();
}
-int Api::get_actors_size() const
-{
- return mc_model_checker->get_remote_process().actors().size();
-}
-
-RemotePtr<kernel::activity::CommImpl> Api::get_comm_isend_raw_addr(smx_simcall_t request) const
-{
- return remote(static_cast<kernel::activity::CommImpl*>(simcall_comm_isend__getraw__result(request)));
-}
-
-RemotePtr<kernel::activity::CommImpl> Api::get_comm_waitany_raw_addr(smx_simcall_t request, int value) const
-{
- auto addr = simcall_comm_waitany__getraw__comms(request) + value;
- auto comm_addr = mc_model_checker->get_remote_process().read(remote(addr));
- return RemotePtr<kernel::activity::CommImpl>(static_cast<kernel::activity::CommImpl*>(comm_addr));
-}
-
-std::string Api::get_pattern_comm_rdv(RemotePtr<kernel::activity::CommImpl> const& addr) const
-{
- Remote<kernel::activity::CommImpl> temp_activity;
- mc_model_checker->get_remote_process().read(temp_activity, addr);
- const kernel::activity::CommImpl* activity = temp_activity.get_buffer();
-
- char* remote_name = mc_model_checker->get_remote_process().read<char*>(RemotePtr<char*>(
- (uint64_t)(activity->get_mailbox() ? &activity->get_mailbox()->get_name() : &activity->mbox_cpy->get_name())));
- auto rdv = mc_model_checker->get_remote_process().read_string(RemotePtr<char>(remote_name));
- return rdv;
-}
-
-unsigned long Api::get_pattern_comm_src_proc(RemotePtr<kernel::activity::CommImpl> const& addr) const
-{
- Remote<kernel::activity::CommImpl> temp_activity;
- mc_model_checker->get_remote_process().read(temp_activity, addr);
- const kernel::activity::CommImpl* activity = temp_activity.get_buffer();
- auto src_proc =
- mc_model_checker->get_remote_process().resolve_actor(mc::remote(activity->src_actor_.get()))->get_pid();
- return src_proc;
-}
-
-unsigned long Api::get_pattern_comm_dst_proc(RemotePtr<kernel::activity::CommImpl> const& addr) const
-{
- Remote<kernel::activity::CommImpl> temp_activity;
- mc_model_checker->get_remote_process().read(temp_activity, addr);
- const kernel::activity::CommImpl* activity = temp_activity.get_buffer();
- auto src_proc =
- mc_model_checker->get_remote_process().resolve_actor(mc::remote(activity->dst_actor_.get()))->get_pid();
- return src_proc;
-}
-
-std::vector<char> Api::get_pattern_comm_data(RemotePtr<kernel::activity::CommImpl> const& addr) const
-{
- simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
- mc_model_checker->get_remote_process().read(temp_comm, addr);
- const simgrid::kernel::activity::CommImpl* comm = temp_comm.get_buffer();
-
- std::vector<char> buffer{};
- if (comm->src_buff_ != nullptr) {
- buffer.resize(comm->src_buff_size_);
- mc_model_checker->get_remote_process().read_bytes(buffer.data(), buffer.size(), remote(comm->src_buff_));
- }
- return buffer;
-}
-
-#if HAVE_SMPI
-bool Api::check_send_request_detached(smx_simcall_t const& simcall) const
-{
- Remote<simgrid::smpi::Request> mpi_request;
- mc_model_checker->get_remote_process().read(
- mpi_request, remote(static_cast<smpi::Request*>(simcall_comm_isend__get__data(simcall))));
- return mpi_request.get_buffer()->detached();
-}
-#endif
-
-smx_actor_t Api::get_src_actor(RemotePtr<kernel::activity::CommImpl> const& comm_addr) const
-{
- simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
- mc_model_checker->get_remote_process().read(temp_comm, comm_addr);
- const simgrid::kernel::activity::CommImpl* comm = temp_comm.get_buffer();
-
- auto src_proc = mc_model_checker->get_remote_process().resolve_actor(simgrid::mc::remote(comm->src_actor_.get()));
- return src_proc;
-}
-
-smx_actor_t Api::get_dst_actor(RemotePtr<kernel::activity::CommImpl> const& comm_addr) const
-{
- simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
- mc_model_checker->get_remote_process().read(temp_comm, comm_addr);
- const simgrid::kernel::activity::CommImpl* comm = temp_comm.get_buffer();
-
- auto dst_proc = mc_model_checker->get_remote_process().resolve_actor(simgrid::mc::remote(comm->dst_actor_.get()));
- return dst_proc;
-}
-
std::size_t Api::get_remote_heap_bytes() const
{
RemoteProcess& process = mc_model_checker->get_remote_process();
mc_model_checker->visited_states++;
}
-void Api::mc_inc_executed_trans() const
-{
- mc_model_checker->executed_transitions++;
-}
-
unsigned long Api::mc_get_visited_states() const
{
return mc_model_checker->visited_states;
}
-unsigned long Api::mc_get_executed_trans() const
-{
- return mc_model_checker->executed_transitions;
-}
-
-void Api::mc_check_deadlock() const
-{
- if (mc_model_checker->checkDeadlock()) {
- XBT_CINFO(mc_global, "**************************");
- XBT_CINFO(mc_global, "*** DEADLOCK DETECTED ***");
- XBT_CINFO(mc_global, "**************************");
- XBT_CINFO(mc_global, "Counter-example execution trace:");
- for (auto const& s : mc_model_checker->getChecker()->get_textual_trace())
- XBT_CINFO(mc_global, " %s", s.c_str());
- simgrid::mc::dumpRecordPath();
- simgrid::mc::session_singleton->log_state();
- throw DeadlockError();
- }
-}
-
-/** Get the issuer of a simcall (`req->issuer`)
- *
- * In split-process mode, it does the black magic necessary to get an address
- * of a (shallow) copy of the data structure the issuer SIMIX actor in the local
- * address space.
- *
- * @param process the MCed process
- * @param req the simcall (copied in the local process)
- */
-smx_actor_t Api::simcall_get_issuer(s_smx_simcall const* req) const
-{
- xbt_assert(mc_model_checker != nullptr);
-
- // This is the address of the smx_actor in the MCed process:
- auto address = simgrid::mc::remote(req->issuer_);
-
- // Lookup by address:
- for (auto& actor : mc_model_checker->get_remote_process().actors())
- if (actor.address == address)
- return actor.copy.get_buffer();
- for (auto& actor : mc_model_checker->get_remote_process().dead_actors())
- if (actor.address == address)
- return actor.copy.get_buffer();
-
- xbt_die("Issuer not found");
-}
-
-RemotePtr<kernel::activity::MailboxImpl> Api::get_mbox_remote_addr(smx_simcall_t const req) const
-{
- if (req->call_ == Simcall::COMM_ISEND)
- return remote(simcall_comm_isend__get__mbox(req));
- if (req->call_ == Simcall::COMM_IRECV)
- return remote(simcall_comm_irecv__get__mbox(req));
- THROW_IMPOSSIBLE;
-}
-
-RemotePtr<kernel::activity::ActivityImpl> Api::get_comm_remote_addr(smx_simcall_t const req) const
-{
- if (req->call_ == Simcall::COMM_ISEND)
- return remote(simcall_comm_isend__getraw__result(req));
- if (req->call_ == Simcall::COMM_IRECV)
- return remote(simcall_comm_irecv__getraw__result(req));
- THROW_IMPOSSIBLE;
-}
-
-void Api::handle_simcall(Transition const& transition) const
-{
- mc_model_checker->handle_simcall(transition);
-}
-
-void Api::mc_wait_for_requests() const
-{
- mc_model_checker->wait_for_requests();
-}
-
void Api::mc_exit(int status) const
{
mc_model_checker->exit(status);
}
-void Api::dump_record_path() const
-{
- simgrid::mc::dumpRecordPath();
-}
-
-smx_simcall_t Api::mc_state_choose_request(simgrid::mc::State* state) const
-{
- RemoteProcess& process = mc_model_checker->get_remote_process();
- XBT_DEBUG("Search for an actor to run. %zu actors to consider", process.actors().size());
- for (auto& actor : process.actors()) {
- /* Only consider the actors that were marked as interleaving by the checker algorithm */
- if (not state->actor_states_[actor.copy.get_buffer()->get_pid()].is_todo())
- continue;
-
- smx_simcall_t res = MC_state_choose_request_for_process(process, state, actor.copy.get_buffer());
- if (res) {
- XBT_DEBUG("Let's run actor %ld, going for transition %s", actor.copy.get_buffer()->get_pid(),
- SIMIX_simcall_name(*res));
- return res;
- }
- }
- return nullptr;
-}
-
-std::string Api::request_to_string(smx_simcall_t req, int value) const
-{
- xbt_assert(mc_model_checker != nullptr, "Must be called from MCer");
-
- smx_actor_t issuer = simcall_get_issuer(req);
-
- if (issuer->simcall_.observer_ != nullptr)
- return mc_model_checker->simcall_to_string(issuer->get_pid(), value);
- else
- return "[" + get_actor_string(issuer) + "] " + SIMIX_simcall_name(*req) + "(unknown?)";
-}
-
-std::string Api::request_get_dot_output(smx_simcall_t req, int value) const
-{
- if (req->observer_ != nullptr) {
- const smx_actor_t issuer = simcall_get_issuer(req);
- const char* color = get_color(issuer->get_pid() - 1);
- return "label = \"" + mc_model_checker->simcall_dot_label(issuer->get_pid(), value) + "\", color = " + color +
- ", fontcolor = " + color;
- } else
- return "UNIMPLEMENTED";
-}
-
-#if HAVE_SMPI
-int Api::get_smpi_request_tag(smx_simcall_t const& simcall, simgrid::simix::Simcall type) const
-{
- void* simcall_data = nullptr;
- if (type == Simcall::COMM_ISEND)
- simcall_data = simcall_comm_isend__get__data(simcall);
- else if (type == Simcall::COMM_IRECV)
- simcall_data = simcall_comm_irecv__get__data(simcall);
- Remote<simgrid::smpi::Request> mpi_request;
- mc_model_checker->get_remote_process().read(mpi_request, remote(static_cast<smpi::Request*>(simcall_data)));
- return mpi_request.get_buffer()->tag();
-}
-#endif
-
void Api::restore_state(std::shared_ptr<simgrid::mc::Snapshot> system_state) const
{
system_state->restore(&mc_model_checker->get_remote_process());
}
-void Api::log_state() const
-{
- session_singleton->log_state();
-}
-
bool Api::snapshot_equal(const Snapshot* s1, const Snapshot* s2) const
{
return simgrid::mc::snapshot_equal(s1, s2);
}
-simgrid::mc::Snapshot* Api::take_snapshot(int num_state) const
+simgrid::mc::Snapshot* Api::take_snapshot(long num_state) const
{
auto snapshot = new simgrid::mc::Snapshot(num_state);
return snapshot;
void Api::s_close() const
{
session_singleton->close();
-}
-
-RemotePtr<simgrid::kernel::actor::SimcallObserver> Api::execute(Transition& transition, smx_simcall_t simcall) const
-{
- /* FIXME: once all simcalls have observers, kill the simcall parameter and use mc_model_checker->simcall_to_string() */
- transition.textual = request_to_string(simcall, transition.times_considered_);
- return session_singleton->execute(transition);
+ session_singleton.reset();
+ if (simgrid::mc::property_automaton != nullptr) {
+ xbt_automaton_free(simgrid::mc::property_automaton);
+ simgrid::mc::property_automaton = nullptr;
+ }
}
void Api::automaton_load(const char* file) const
{
- MC_automaton_load(file);
+ if (simgrid::mc::property_automaton == nullptr)
+ simgrid::mc::property_automaton = xbt_automaton_new();
+
+ xbt_automaton_load(simgrid::mc::property_automaton, file);
}
std::vector<int> Api::automaton_propositional_symbol_evaluate() const