digraph petrinet {
    MUTEX_0 [shape="circle" xlabel="MUTEX_0" label="•"];
    PROGRAM_END [shape="circle" xlabel="PROGRAM_END" label=""];
    PROGRAM_PANIC [shape="circle" xlabel="PROGRAM_PANIC" label=""];
    PROGRAM_START [shape="circle" xlabel="PROGRAM_START" label="•"];
    main_BB1 [shape="circle" xlabel="main_BB1" label=""];
    main_BB2 [shape="circle" xlabel="main_BB2" label=""];
    main_BB3 [shape="circle" xlabel="main_BB3" label=""];
    main_BB4 [shape="circle" xlabel="main_BB4" label=""];
    main_BB5 [shape="circle" xlabel="main_BB5" label=""];
    main_DROP_4 [shape="box" xlabel="" label="main_DROP_4"];
    main_RETURN [shape="box" xlabel="" label="main_RETURN"];
    std_mem_drop_0_CALL [shape="box" xlabel="" label="std_mem_drop_0_CALL"];
    std_sync_Mutex_T_lock_0_CALL [shape="box" xlabel="" label="std_sync_Mutex_T_lock_0_CALL"];
    std_sync_Mutex_T_lock_1_CALL [shape="box" xlabel="" label="std_sync_Mutex_T_lock_1_CALL"];
    std_sync_Mutex_T_new_0_CALL [shape="box" xlabel="" label="std_sync_Mutex_T_new_0_CALL"];
    MUTEX_0 -> std_sync_Mutex_T_lock_0_CALL;
    MUTEX_0 -> std_sync_Mutex_T_lock_1_CALL;
    PROGRAM_START -> std_sync_Mutex_T_new_0_CALL;
    main_BB1 -> std_sync_Mutex_T_lock_0_CALL;
    main_BB2 -> std_mem_drop_0_CALL;
    main_BB3 -> std_sync_Mutex_T_lock_1_CALL;
    main_BB4 -> main_DROP_4;
    main_BB5 -> main_RETURN;
    main_DROP_4 -> MUTEX_0;
    main_DROP_4 -> main_BB5;
    main_RETURN -> PROGRAM_END;
    std_mem_drop_0_CALL -> MUTEX_0;
    std_mem_drop_0_CALL -> main_BB3;
    std_sync_Mutex_T_lock_0_CALL -> main_BB2;
    std_sync_Mutex_T_lock_1_CALL -> main_BB4;
    std_sync_Mutex_T_new_0_CALL -> main_BB1;
}