// This file is part of the SV-Benchmarks collection of verification tasks:
// https://gitlab.com/sosy-lab/benchmarking/sv-benchmarks
//
// SPDX-FileCopyrightText: 2013 Carnegie Mellon University
// SPDX-FileCopyrightText: 2014-2021 The SV-Benchmarks Community
// SPDX-FileCopyrightText: 2018 Marie-Christine Jakobs, LMU Munich
//
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Attribution-CMU-LMU

int __return_main;
void abort(void);
extern void __assert_fail(const char *, const char *, unsigned int, const char *) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
void reach_error() { __assert_fail("0", "pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c", 4, "reach_error"); }
_Bool __VERIFIER_nondet_bool();
char __VERIFIER_nondet_char();
void assert(_Bool arg);
void abort(void);
void assume_abort_if_not(int cond) {
  if(!cond) {abort();}
}
typedef char msg_t;
typedef int port_t;
void read(port_t p, msg_t m);
void write(port_t p, msg_t m);
msg_t nomsg = (msg_t )-1;
char r1 = '\x0';
port_t p1 = 0;
char p1_old = '\x0';
char p1_new = '\x0';
char id1 = '\x0';
char st1 = '\x0';
msg_t send1 = '\x0';
_Bool mode1 = 0;
port_t p2 = 0;
char p2_old = '\x0';
char p2_new = '\x0';
char id2 = '\x0';
char st2 = '\x0';
msg_t send2 = '\x0';
_Bool mode2 = 0;
port_t p3 = 0;
char p3_old = '\x0';
char p3_new = '\x0';
char id3 = '\x0';
char st3 = '\x0';
msg_t send3 = '\x0';
_Bool mode3 = 0;
port_t p4 = 0;
char p4_old = '\x0';
char p4_new = '\x0';
char id4 = '\x0';
char st4 = '\x0';
msg_t send4 = '\x0';
_Bool mode4 = 0;
void node1();
void node2();
void node3();
void node4();
void (*nodes[4])() = { &node1, &node2, &node3, &node4 };
int init();
int check();
int main();
int __return_120;
int __return_800;
int __tmp_2641_0;
int __return_2669;
int __return_786;
int __tmp_2410_0;
int __return_2512;
int __return_772;
int __tmp_2379_0;
int __return_2394;
int __return_758;
int __tmp_2185_0;
int __tmp_2255_0;
int __return_2270;
int __return_744;
int __tmp_2125_0;
int __return_2169;
int __return_730;
int __tmp_1960_0;
int __tmp_2001_0;
int __return_2045;
int __return_716;
int __tmp_1912_0;
int __tmp_1924_0;
int __return_1939;
int __return_702;
int __tmp_1761_0;
int __tmp_1802_0;
int __tmp_1814_0;
int __return_1832;
int __return_688;
int __tmp_1664_0;
int __return_1737;
int __tmp_1738_0;
int __return_674;
int __tmp_1525_0;
int __tmp_1537_0;
int __return_1610;
int __return_660;
int __tmp_1445_0;
int __tmp_1486_0;
int __return_1501;
int __return_646;
int __tmp_1323_0;
int __tmp_1335_0;
int __tmp_1376_0;
int __return_1394;
int __return_632;
int __tmp_1240_0;
int __tmp_1252_0;
int __return_1296;
int __tmp_1305_0;
int __return_618;
int __tmp_1118_0;
int __tmp_1130_0;
int __tmp_1142_0;
int __return_1189;
int __return_604;
int __tmp_1055_0;
int __tmp_1067_0;
int __tmp_1079_0;
int __return_1097;
int __return_590;
int __tmp_944_0;
int __tmp_956_0;
int __tmp_968_0;
int __tmp_980_0;
int __return_1001;
int __tmp_1010_0;
int __return_2674;
 int main()
 {
 int main__c1;
 int main__i2;
 main__c1 = 0;
 r1 = __VERIFIER_nondet_char();
 id1 = __VERIFIER_nondet_char();
 st1 = __VERIFIER_nondet_char();
 send1 = __VERIFIER_nondet_char();
 mode1 = __VERIFIER_nondet_bool();
 id2 = __VERIFIER_nondet_char();
 st2 = __VERIFIER_nondet_char();
 send2 = __VERIFIER_nondet_char();
 mode2 = __VERIFIER_nondet_bool();
 id3 = __VERIFIER_nondet_char();
 st3 = __VERIFIER_nondet_char();
 send3 = __VERIFIER_nondet_char();
 mode3 = __VERIFIER_nondet_bool();
 id4 = __VERIFIER_nondet_char();
 st4 = __VERIFIER_nondet_char();
 send4 = __VERIFIER_nondet_char();
 mode4 = __VERIFIER_nondet_bool();
 {
 int init__tmp;
 if (((int)r1) == 0)
 {
 if (((int)id1) >= 0)
 {
 if (((int)st1) == 0)
 {
 if (((int)send1) == ((int)id1))
 {
 if (((int)mode1) == 0)
 {
 if (((int)id2) >= 0)
 {
 if (((int)st2) == 0)
 {
 if (((int)send2) == ((int)id2))
 {
 if (((int)mode2) == 0)
 {
 if (((int)id3) >= 0)
 {
 if (((int)st3) == 0)
 {
 if (((int)send3) == ((int)id3))
 {
 if (((int)mode3) == 0)
 {
 if (((int)id4) >= 0)
 {
 if (((int)st4) == 0)
 {
 if (((int)send4) == ((int)id4))
 {
 if (((int)mode4) == 0)
 {
 if (((int)id1) != ((int)id2))
 {
 if (((int)id1) != ((int)id3))
 {
 if (((int)id1) != ((int)id4))
 {
 if (((int)id2) != ((int)id3))
 {
 if (((int)id2) != ((int)id4))
 {
 if (((int)id3) != ((int)id4))
 {
 init__tmp = 1;
  __return_120 = init__tmp;
 main__i2 = __return_120;
 if (main__i2 != 0)
 {
 p1_old = nomsg;
 p1_new = nomsg;
 p2_old = nomsg;
 p2_new = nomsg;
 p3_old = nomsg;
 p3_new = nomsg;
 p4_old = nomsg;
 p4_new = nomsg;
 main__i2 = 0;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node1____CPAchecker_TMP_0;
 if (send1 != nomsg)
 {
 if (p1_new == nomsg)
 {
 node1____CPAchecker_TMP_0 = send1;
 p1_new = node1____CPAchecker_TMP_0;
 mode1 = 1;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node2____CPAchecker_TMP_0;
 if (send2 != nomsg)
 {
 if (p2_new == nomsg)
 {
 node2____CPAchecker_TMP_0 = send2;
 p2_new = node2____CPAchecker_TMP_0;
 mode2 = 1;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node3____CPAchecker_TMP_0;
 if (send3 != nomsg)
 {
 if (p3_new == nomsg)
 {
 node3____CPAchecker_TMP_0 = send3;
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_800 = check__tmp;
 main__c1 = __return_800;
 {
 _Bool __tmp_1;
 __tmp_1 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_1;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_2531;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 mode1 = 0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_2560;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 mode2 = 0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_2589;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 mode3 = 0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_2618;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 mode4 = 0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 __tmp_2641_0 = main____CPAchecker_TMP_0;
 label_2641:; 
 main____CPAchecker_TMP_0 = __tmp_2641_0;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 goto label_2655;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 label_2655:; 
 if (((int)r1) < 4)
 {
 check__tmp = 1;
 goto label_2662;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 1)
 {
 check__tmp = 1;
 goto label_2662;
 }
 else 
 {
 check__tmp = 0;
 label_2662:; 
 goto label_2654;
 }
 }
 }
 else 
 {
 check__tmp = 0;
 label_2654:; 
 goto label_2648;
 }
 }
 }
 else 
 {
 check__tmp = 0;
 label_2648:; 
  __return_2669 = check__tmp;
 main__c1 = __return_2669;
 __tmp_1738_0 = main____CPAchecker_TMP_0;
 goto label_1738;
 }
 }
 }
 else 
 {
 label_2618:; 
 mode4 = 0;
 goto label_2629;
 }
 }
 }
 else 
 {
 mode4 = 0;
 label_2629:; 
 __tmp_2379_0 = main____CPAchecker_TMP_0;
 goto label_2379;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2589:; 
 mode3 = 0;
 goto label_2600;
 }
 }
 }
 else 
 {
 mode3 = 0;
 label_2600:; 
 __tmp_2125_0 = main____CPAchecker_TMP_0;
 goto label_2125;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2560:; 
 mode2 = 0;
 goto label_2571;
 }
 }
 }
 else 
 {
 mode2 = 0;
 label_2571:; 
 __tmp_1664_0 = main____CPAchecker_TMP_0;
 goto label_1664;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 send1 = node1__m1;
 label_2531:; 
 mode1 = 0;
 goto label_2542;
 }
 }
 }
 else 
 {
 mode1 = 0;
 label_2542:; 
 __tmp_2410_0 = main____CPAchecker_TMP_0;
 goto label_2410;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node4____CPAchecker_TMP_0 = p4_new;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_786 = check__tmp;
 main__c1 = __return_786;
 {
 _Bool __tmp_2;
 __tmp_2 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_2;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode1 = 0;
 __tmp_2410_0 = main____CPAchecker_TMP_0;
 label_2410:; 
 main____CPAchecker_TMP_0 = __tmp_2410_0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_2424;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 mode2 = 0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_2453;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 mode3 = 0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_2482;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 mode4 = 0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_2512 = check__tmp;
 main__c1 = __return_2512;
 __tmp_1738_0 = main____CPAchecker_TMP_0;
 goto label_1738;
 }
 }
 }
 else 
 {
 label_2482:; 
 mode4 = 0;
 goto label_2493;
 }
 }
 }
 else 
 {
 mode4 = 0;
 label_2493:; 
 __tmp_2255_0 = main____CPAchecker_TMP_0;
 goto label_2255;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2453:; 
 mode3 = 0;
 goto label_2464;
 }
 }
 }
 else 
 {
 mode3 = 0;
 label_2464:; 
 __tmp_2001_0 = main____CPAchecker_TMP_0;
 goto label_2001;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2424:; 
 mode2 = 0;
 goto label_2435;
 }
 }
 }
 else 
 {
 mode2 = 0;
 label_2435:; 
 __tmp_1537_0 = main____CPAchecker_TMP_0;
 goto label_1537;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node3____CPAchecker_TMP_0 = p3_new;
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_772 = check__tmp;
 main__c1 = __return_772;
 {
 _Bool __tmp_3;
 __tmp_3 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_3;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_2294;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 mode1 = 0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_2323;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 mode2 = 0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_2352;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 mode3 = 0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode4 = 0;
 __tmp_2379_0 = main____CPAchecker_TMP_0;
 label_2379:; 
 main____CPAchecker_TMP_0 = __tmp_2379_0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_2394 = check__tmp;
 main__c1 = __return_2394;
 __tmp_1738_0 = main____CPAchecker_TMP_0;
 goto label_1738;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2352:; 
 mode3 = 0;
 goto label_2363;
 }
 }
 }
 else 
 {
 mode3 = 0;
 label_2363:; 
 __tmp_1912_0 = main____CPAchecker_TMP_0;
 goto label_1912;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2323:; 
 mode2 = 0;
 goto label_2334;
 }
 }
 }
 else 
 {
 mode2 = 0;
 label_2334:; 
 __tmp_1445_0 = main____CPAchecker_TMP_0;
 goto label_1445;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 send1 = node1__m1;
 label_2294:; 
 mode1 = 0;
 goto label_2305;
 }
 }
 }
 else 
 {
 mode1 = 0;
 label_2305:; 
 __tmp_2185_0 = main____CPAchecker_TMP_0;
 goto label_2185;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node4____CPAchecker_TMP_0 = p4_new;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_758 = check__tmp;
 main__c1 = __return_758;
 {
 _Bool __tmp_4;
 __tmp_4 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_4;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode1 = 0;
 __tmp_2185_0 = main____CPAchecker_TMP_0;
 label_2185:; 
 main____CPAchecker_TMP_0 = __tmp_2185_0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_2199;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 mode2 = 0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_2228;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 mode3 = 0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode4 = 0;
 __tmp_2255_0 = main____CPAchecker_TMP_0;
 label_2255:; 
 main____CPAchecker_TMP_0 = __tmp_2255_0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_2270 = check__tmp;
 main__c1 = __return_2270;
 {
 _Bool __tmp_5;
 __tmp_5 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_5;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2228:; 
 mode3 = 0;
 goto label_2239;
 }
 }
 }
 else 
 {
 mode3 = 0;
 label_2239:; 
 __tmp_1802_0 = main____CPAchecker_TMP_0;
 goto label_1802;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2199:; 
 mode2 = 0;
 goto label_2210;
 }
 }
 }
 else 
 {
 mode2 = 0;
 label_2210:; 
 __tmp_1335_0 = main____CPAchecker_TMP_0;
 goto label_1335;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node2____CPAchecker_TMP_0 = p2_new;
 p2_new = node2____CPAchecker_TMP_0;
 mode2 = 1;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node3____CPAchecker_TMP_0;
 if (send3 != nomsg)
 {
 if (p3_new == nomsg)
 {
 node3____CPAchecker_TMP_0 = send3;
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_744 = check__tmp;
 main__c1 = __return_744;
 {
 _Bool __tmp_6;
 __tmp_6 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_6;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_2069;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 mode1 = 0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_2098;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 mode2 = 0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode3 = 0;
 __tmp_2125_0 = main____CPAchecker_TMP_0;
 label_2125:; 
 main____CPAchecker_TMP_0 = __tmp_2125_0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_2139;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 mode4 = 0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_2169 = check__tmp;
 main__c1 = __return_2169;
 __tmp_1738_0 = main____CPAchecker_TMP_0;
 goto label_1738;
 }
 }
 }
 else 
 {
 label_2139:; 
 mode4 = 0;
 goto label_2150;
 }
 }
 }
 else 
 {
 mode4 = 0;
 label_2150:; 
 __tmp_1924_0 = main____CPAchecker_TMP_0;
 goto label_1924;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_2098:; 
 mode2 = 0;
 goto label_2109;
 }
 }
 }
 else 
 {
 mode2 = 0;
 label_2109:; 
 __tmp_1240_0 = main____CPAchecker_TMP_0;
 goto label_1240;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 send1 = node1__m1;
 label_2069:; 
 mode1 = 0;
 goto label_2080;
 }
 }
 }
 else 
 {
 mode1 = 0;
 label_2080:; 
 __tmp_1960_0 = main____CPAchecker_TMP_0;
 goto label_1960;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node4____CPAchecker_TMP_0 = p4_new;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_730 = check__tmp;
 main__c1 = __return_730;
 {
 _Bool __tmp_7;
 __tmp_7 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_7;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode1 = 0;
 __tmp_1960_0 = main____CPAchecker_TMP_0;
 label_1960:; 
 main____CPAchecker_TMP_0 = __tmp_1960_0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_1974;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 mode2 = 0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode3 = 0;
 __tmp_2001_0 = main____CPAchecker_TMP_0;
 label_2001:; 
 main____CPAchecker_TMP_0 = __tmp_2001_0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_2015;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 mode4 = 0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_2045 = check__tmp;
 main__c1 = __return_2045;
 {
 _Bool __tmp_8;
 __tmp_8 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_8;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 else 
 {
 label_2015:; 
 mode4 = 0;
 goto label_2026;
 }
 }
 }
 else 
 {
 mode4 = 0;
 label_2026:; 
 __tmp_1814_0 = main____CPAchecker_TMP_0;
 goto label_1814;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_1974:; 
 mode2 = 0;
 goto label_1985;
 }
 }
 }
 else 
 {
 mode2 = 0;
 label_1985:; 
 __tmp_1130_0 = main____CPAchecker_TMP_0;
 goto label_1130;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node3____CPAchecker_TMP_0 = p3_new;
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_716 = check__tmp;
 main__c1 = __return_716;
 {
 _Bool __tmp_9;
 __tmp_9 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_9;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_1856;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 mode1 = 0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_1885;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 mode2 = 0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode3 = 0;
 __tmp_1912_0 = main____CPAchecker_TMP_0;
 label_1912:; 
 main____CPAchecker_TMP_0 = __tmp_1912_0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode4 = 0;
 __tmp_1924_0 = main____CPAchecker_TMP_0;
 label_1924:; 
 main____CPAchecker_TMP_0 = __tmp_1924_0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1939 = check__tmp;
 main__c1 = __return_1939;
 {
 _Bool __tmp_10;
 __tmp_10 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_10;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_1885:; 
 mode2 = 0;
 goto label_1896;
 }
 }
 }
 else 
 {
 mode2 = 0;
 label_1896:; 
 __tmp_1055_0 = main____CPAchecker_TMP_0;
 goto label_1055;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 send1 = node1__m1;
 label_1856:; 
 mode1 = 0;
 goto label_1867;
 }
 }
 }
 else 
 {
 mode1 = 0;
 label_1867:; 
 __tmp_1761_0 = main____CPAchecker_TMP_0;
 goto label_1761;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node4____CPAchecker_TMP_0 = p4_new;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_702 = check__tmp;
 main__c1 = __return_702;
 {
 _Bool __tmp_11;
 __tmp_11 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_11;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode1 = 0;
 __tmp_1761_0 = main____CPAchecker_TMP_0;
 label_1761:; 
 main____CPAchecker_TMP_0 = __tmp_1761_0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_1775;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 mode2 = 0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode3 = 0;
 __tmp_1802_0 = main____CPAchecker_TMP_0;
 label_1802:; 
 main____CPAchecker_TMP_0 = __tmp_1802_0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode4 = 0;
 __tmp_1814_0 = main____CPAchecker_TMP_0;
 label_1814:; 
 main____CPAchecker_TMP_0 = __tmp_1814_0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1832 = check__tmp;
 main__c1 = __return_1832;
 {
 _Bool __tmp_12;
 __tmp_12 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_12;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_1775:; 
 mode2 = 0;
 goto label_1786;
 }
 }
 }
 else 
 {
 mode2 = 0;
 label_1786:; 
 __tmp_956_0 = main____CPAchecker_TMP_0;
 goto label_956;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node1____CPAchecker_TMP_0 = p1_new;
 p1_new = node1____CPAchecker_TMP_0;
 mode1 = 1;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node2____CPAchecker_TMP_0;
 if (send2 != nomsg)
 {
 if (p2_new == nomsg)
 {
 node2____CPAchecker_TMP_0 = send2;
 p2_new = node2____CPAchecker_TMP_0;
 mode2 = 1;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node3____CPAchecker_TMP_0;
 if (send3 != nomsg)
 {
 if (p3_new == nomsg)
 {
 node3____CPAchecker_TMP_0 = send3;
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_688 = check__tmp;
 main__c1 = __return_688;
 {
 _Bool __tmp_13;
 __tmp_13 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_13;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_1637;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 mode1 = 0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode2 = 0;
 __tmp_1664_0 = main____CPAchecker_TMP_0;
 label_1664:; 
 main____CPAchecker_TMP_0 = __tmp_1664_0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_1678;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 mode3 = 0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_1707;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 mode4 = 0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1737 = check__tmp;
 main__c1 = __return_1737;
 __tmp_1738_0 = main____CPAchecker_TMP_0;
 label_1738:; 
 main____CPAchecker_TMP_0 = __tmp_1738_0;
 {
 _Bool __tmp_14;
 __tmp_14 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_14;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 __tmp_1305_0 = main____CPAchecker_TMP_0;
 goto label_1305;
 }
 }
 }
 }
 }
 else 
 {
 label_1707:; 
 mode4 = 0;
 goto label_1718;
 }
 }
 }
 else 
 {
 mode4 = 0;
 label_1718:; 
 __tmp_1486_0 = main____CPAchecker_TMP_0;
 goto label_1486;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_1678:; 
 mode3 = 0;
 goto label_1689;
 }
 }
 }
 else 
 {
 mode3 = 0;
 label_1689:; 
 __tmp_1252_0 = main____CPAchecker_TMP_0;
 goto label_1252;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 send1 = node1__m1;
 label_1637:; 
 mode1 = 0;
 goto label_1648;
 }
 }
 }
 else 
 {
 mode1 = 0;
 label_1648:; 
 __tmp_1525_0 = main____CPAchecker_TMP_0;
 goto label_1525;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node4____CPAchecker_TMP_0 = p4_new;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_674 = check__tmp;
 main__c1 = __return_674;
 {
 _Bool __tmp_15;
 __tmp_15 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_15;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode1 = 0;
 __tmp_1525_0 = main____CPAchecker_TMP_0;
 label_1525:; 
 main____CPAchecker_TMP_0 = __tmp_1525_0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode2 = 0;
 __tmp_1537_0 = main____CPAchecker_TMP_0;
 label_1537:; 
 main____CPAchecker_TMP_0 = __tmp_1537_0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_1551;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 mode3 = 0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_1580;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 mode4 = 0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1610 = check__tmp;
 main__c1 = __return_1610;
 {
 _Bool __tmp_16;
 __tmp_16 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_16;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 __tmp_1305_0 = main____CPAchecker_TMP_0;
 goto label_1305;
 }
 }
 }
 }
 }
 else 
 {
 label_1580:; 
 mode4 = 0;
 goto label_1591;
 }
 }
 }
 else 
 {
 mode4 = 0;
 label_1591:; 
 __tmp_1376_0 = main____CPAchecker_TMP_0;
 goto label_1376;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_1551:; 
 mode3 = 0;
 goto label_1562;
 }
 }
 }
 else 
 {
 mode3 = 0;
 label_1562:; 
 __tmp_1142_0 = main____CPAchecker_TMP_0;
 goto label_1142;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node3____CPAchecker_TMP_0 = p3_new;
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_660 = check__tmp;
 main__c1 = __return_660;
 {
 _Bool __tmp_17;
 __tmp_17 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_17;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_1418;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 mode1 = 0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode2 = 0;
 __tmp_1445_0 = main____CPAchecker_TMP_0;
 label_1445:; 
 main____CPAchecker_TMP_0 = __tmp_1445_0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_1459;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 mode3 = 0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode4 = 0;
 __tmp_1486_0 = main____CPAchecker_TMP_0;
 label_1486:; 
 main____CPAchecker_TMP_0 = __tmp_1486_0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1501 = check__tmp;
 main__c1 = __return_1501;
 {
 _Bool __tmp_18;
 __tmp_18 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_18;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 __tmp_1305_0 = main____CPAchecker_TMP_0;
 goto label_1305;
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_1459:; 
 mode3 = 0;
 goto label_1470;
 }
 }
 }
 else 
 {
 mode3 = 0;
 label_1470:; 
 __tmp_1067_0 = main____CPAchecker_TMP_0;
 goto label_1067;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 send1 = node1__m1;
 label_1418:; 
 mode1 = 0;
 goto label_1429;
 }
 }
 }
 else 
 {
 mode1 = 0;
 label_1429:; 
 __tmp_1323_0 = main____CPAchecker_TMP_0;
 goto label_1323;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node4____CPAchecker_TMP_0 = p4_new;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_646 = check__tmp;
 main__c1 = __return_646;
 {
 _Bool __tmp_19;
 __tmp_19 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_19;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode1 = 0;
 __tmp_1323_0 = main____CPAchecker_TMP_0;
 label_1323:; 
 main____CPAchecker_TMP_0 = __tmp_1323_0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode2 = 0;
 __tmp_1335_0 = main____CPAchecker_TMP_0;
 label_1335:; 
 main____CPAchecker_TMP_0 = __tmp_1335_0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_1349;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 mode3 = 0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode4 = 0;
 __tmp_1376_0 = main____CPAchecker_TMP_0;
 label_1376:; 
 main____CPAchecker_TMP_0 = __tmp_1376_0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1394 = check__tmp;
 main__c1 = __return_1394;
 {
 _Bool __tmp_20;
 __tmp_20 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_20;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_1349:; 
 mode3 = 0;
 goto label_1360;
 }
 }
 }
 else 
 {
 mode3 = 0;
 label_1360:; 
 __tmp_968_0 = main____CPAchecker_TMP_0;
 goto label_968;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node2____CPAchecker_TMP_0 = p2_new;
 p2_new = node2____CPAchecker_TMP_0;
 mode2 = 1;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node3____CPAchecker_TMP_0;
 if (send3 != nomsg)
 {
 if (p3_new == nomsg)
 {
 node3____CPAchecker_TMP_0 = send3;
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_632 = check__tmp;
 main__c1 = __return_632;
 {
 _Bool __tmp_21;
 __tmp_21 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_21;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_1213;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 mode1 = 0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode2 = 0;
 __tmp_1240_0 = main____CPAchecker_TMP_0;
 label_1240:; 
 main____CPAchecker_TMP_0 = __tmp_1240_0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode3 = 0;
 __tmp_1252_0 = main____CPAchecker_TMP_0;
 label_1252:; 
 main____CPAchecker_TMP_0 = __tmp_1252_0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_1266;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 mode4 = 0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1296 = check__tmp;
 main__c1 = __return_1296;
 {
 _Bool __tmp_22;
 __tmp_22 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_22;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 __tmp_1305_0 = main____CPAchecker_TMP_0;
 label_1305:; 
 main____CPAchecker_TMP_0 = __tmp_1305_0;
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 __tmp_1010_0 = main____CPAchecker_TMP_0;
 goto label_1010;
 }
 }
 }
 }
 }
 else 
 {
 label_1266:; 
 mode4 = 0;
 goto label_1277;
 }
 }
 }
 else 
 {
 mode4 = 0;
 label_1277:; 
 __tmp_1079_0 = main____CPAchecker_TMP_0;
 goto label_1079;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 send1 = node1__m1;
 label_1213:; 
 mode1 = 0;
 goto label_1224;
 }
 }
 }
 else 
 {
 mode1 = 0;
 label_1224:; 
 __tmp_1118_0 = main____CPAchecker_TMP_0;
 goto label_1118;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node4____CPAchecker_TMP_0 = p4_new;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_618 = check__tmp;
 main__c1 = __return_618;
 {
 _Bool __tmp_23;
 __tmp_23 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_23;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode1 = 0;
 __tmp_1118_0 = main____CPAchecker_TMP_0;
 label_1118:; 
 main____CPAchecker_TMP_0 = __tmp_1118_0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode2 = 0;
 __tmp_1130_0 = main____CPAchecker_TMP_0;
 label_1130:; 
 main____CPAchecker_TMP_0 = __tmp_1130_0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode3 = 0;
 __tmp_1142_0 = main____CPAchecker_TMP_0;
 label_1142:; 
 main____CPAchecker_TMP_0 = __tmp_1142_0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_1156;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 mode4 = 0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1189 = check__tmp;
 main__c1 = __return_1189;
 {
 _Bool __tmp_24;
 __tmp_24 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_24;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 label_1156:; 
 mode4 = 0;
 goto label_1167;
 }
 }
 }
 else 
 {
 mode4 = 0;
 label_1167:; 
 __tmp_980_0 = main____CPAchecker_TMP_0;
 goto label_980;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node3____CPAchecker_TMP_0 = p3_new;
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 return __return_main;
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_604 = check__tmp;
 main__c1 = __return_604;
 {
 _Bool __tmp_25;
 __tmp_25 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_25;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_1028;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 mode1 = 0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode2 = 0;
 __tmp_1055_0 = main____CPAchecker_TMP_0;
 label_1055:; 
 main____CPAchecker_TMP_0 = __tmp_1055_0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode3 = 0;
 __tmp_1067_0 = main____CPAchecker_TMP_0;
 label_1067:; 
 main____CPAchecker_TMP_0 = __tmp_1067_0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode4 = 0;
 __tmp_1079_0 = main____CPAchecker_TMP_0;
 label_1079:; 
 main____CPAchecker_TMP_0 = __tmp_1079_0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 return __return_main;
 }
 else 
 {
 check__tmp = 0;
  __return_1097 = check__tmp;
 main__c1 = __return_1097;
 {
 _Bool __tmp_26;
 __tmp_26 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_26;
 if (assert__arg == 0)
 {
 {reach_error();}
 return __return_main;
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 send1 = node1__m1;
 label_1028:; 
 mode1 = 0;
 goto label_1039;
 }
 }
 }
 else 
 {
 mode1 = 0;
 label_1039:; 
 __tmp_944_0 = main____CPAchecker_TMP_0;
 goto label_944;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 node4____CPAchecker_TMP_0 = p4_new;
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_590 = check__tmp;
 main__c1 = __return_590;
 {
 _Bool __tmp_27;
 __tmp_27 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_27;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode1 = 0;
 __tmp_944_0 = main____CPAchecker_TMP_0;
 label_944:; 
 main____CPAchecker_TMP_0 = __tmp_944_0;
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode2 = 0;
 __tmp_956_0 = main____CPAchecker_TMP_0;
 label_956:; 
 main____CPAchecker_TMP_0 = __tmp_956_0;
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode3 = 0;
 __tmp_968_0 = main____CPAchecker_TMP_0;
 label_968:; 
 main____CPAchecker_TMP_0 = __tmp_968_0;
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 return __return_main;
 }
 else 
 {
 mode4 = 0;
 __tmp_980_0 = main____CPAchecker_TMP_0;
 label_980:; 
 main____CPAchecker_TMP_0 = __tmp_980_0;
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 {
 int check__tmp;
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) <= 1)
 {
 if (((int)r1) >= 4)
 {
 return __return_main;
 }
 else 
 {
 if ((((((int)st1) + ((int)st2)) + ((int)st3)) + ((int)st4)) == 0)
 {
 if (((int)r1) < 4)
 {
 check__tmp = 1;
  __return_1001 = check__tmp;
 main__c1 = __return_1001;
 {
 _Bool __tmp_28;
 __tmp_28 = main__c1;
 _Bool assert__arg;
 assert__arg = __tmp_28;
 if (assert__arg == 0)
 {
 return __return_main;
 }
 else 
 {
 int main____CPAchecker_TMP_0 = main__i2;
 main__i2 = main__i2 + 1;
 __tmp_1010_0 = main____CPAchecker_TMP_0;
 label_1010:; 
 main____CPAchecker_TMP_0 = __tmp_1010_0;
 if (main__i2 < 8)
 {
 {
 msg_t node1__m1;
 node1__m1 = nomsg;
 if (!(mode1 == 0))
 {
 r1 = (char)(((int)r1) + 1);
 node1__m1 = p4_old;
 p4_old = nomsg;
 if (((int)node1__m1) != ((int)nomsg))
 {
 if (((int)node1__m1) > ((int)id1))
 {
 send1 = node1__m1;
 goto label_2685;
 }
 else 
 {
 if (((int)node1__m1) == ((int)id1))
 {
 st1 = 1;
 goto label_2685;
 }
 else 
 {
 send1 = node1__m1;
 goto label_2685;
 }
 }
 }
 else 
 {
 label_2685:; 
 mode1 = 0;
 label_2697:; 
 {
 msg_t node2__m2;
 node2__m2 = nomsg;
 if (!(mode2 == 0))
 {
 node2__m2 = p1_old;
 p1_old = nomsg;
 if (((int)node2__m2) != ((int)nomsg))
 {
 if (((int)node2__m2) > ((int)id2))
 {
 send2 = node2__m2;
 goto label_2719;
 }
 else 
 {
 if (((int)node2__m2) == ((int)id2))
 {
 st2 = 1;
 goto label_2719;
 }
 else 
 {
 goto label_2719;
 }
 }
 }
 else 
 {
 label_2719:; 
 mode2 = 0;
 label_2730:; 
 {
 msg_t node3__m3;
 node3__m3 = nomsg;
 if (!(mode3 == 0))
 {
 node3__m3 = p2_old;
 p2_old = nomsg;
 if (((int)node3__m3) != ((int)nomsg))
 {
 if (((int)node3__m3) > ((int)id3))
 {
 send3 = node3__m3;
 goto label_2752;
 }
 else 
 {
 if (((int)node3__m3) == ((int)id3))
 {
 st3 = 1;
 goto label_2752;
 }
 else 
 {
 goto label_2752;
 }
 }
 }
 else 
 {
 label_2752:; 
 mode3 = 0;
 label_2763:; 
 {
 msg_t node4__m4;
 node4__m4 = nomsg;
 if (!(mode4 == 0))
 {
 node4__m4 = p3_old;
 p3_old = nomsg;
 if (((int)node4__m4) != ((int)nomsg))
 {
 if (((int)node4__m4) > ((int)id4))
 {
 send4 = node4__m4;
 goto label_2785;
 }
 else 
 {
 if (((int)node4__m4) == ((int)id4))
 {
 st4 = 1;
 goto label_2785;
 }
 else 
 {
 goto label_2785;
 }
 }
 }
 else 
 {
 label_2785:; 
 mode4 = 0;
 label_2796:; 
 p1_old = p1_new;
 p1_new = nomsg;
 p2_old = p2_new;
 p2_new = nomsg;
 p3_old = p3_new;
 p3_new = nomsg;
 p4_old = p4_new;
 p4_new = nomsg;
 __tmp_2641_0 = main____CPAchecker_TMP_0;
 goto label_2641;
 }
 }
 else 
 {
 int node4____CPAchecker_TMP_0;
 if (send4 != nomsg)
 {
 if (p4_new == nomsg)
 {
 node4____CPAchecker_TMP_0 = send4;
 goto label_2802;
 }
 else 
 {
 goto label_2799;
 }
 }
 else 
 {
 label_2799:; 
 node4____CPAchecker_TMP_0 = p4_new;
 label_2802:; 
 p4_new = node4____CPAchecker_TMP_0;
 mode4 = 1;
 goto label_2796;
 }
 }
 }
 }
 }
 else 
 {
 int node3____CPAchecker_TMP_0;
 if (send3 != nomsg)
 {
 if (p3_new == nomsg)
 {
 node3____CPAchecker_TMP_0 = send3;
 goto label_2769;
 }
 else 
 {
 goto label_2766;
 }
 }
 else 
 {
 label_2766:; 
 node3____CPAchecker_TMP_0 = p3_new;
 label_2769:; 
 p3_new = node3____CPAchecker_TMP_0;
 mode3 = 1;
 goto label_2763;
 }
 }
 }
 }
 }
 else 
 {
 int node2____CPAchecker_TMP_0;
 if (send2 != nomsg)
 {
 if (p2_new == nomsg)
 {
 node2____CPAchecker_TMP_0 = send2;
 goto label_2736;
 }
 else 
 {
 goto label_2733;
 }
 }
 else 
 {
 label_2733:; 
 node2____CPAchecker_TMP_0 = p2_new;
 label_2736:; 
 p2_new = node2____CPAchecker_TMP_0;
 mode2 = 1;
 goto label_2730;
 }
 }
 }
 }
 }
 else 
 {
 int node1____CPAchecker_TMP_0;
 if (send1 != nomsg)
 {
 if (p1_new == nomsg)
 {
 node1____CPAchecker_TMP_0 = send1;
 goto label_2703;
 }
 else 
 {
 goto label_2700;
 }
 }
 else 
 {
 label_2700:; 
 node1____CPAchecker_TMP_0 = p1_new;
 label_2703:; 
 p1_new = node1____CPAchecker_TMP_0;
 mode1 = 1;
 goto label_2697;
 }
 }
 }
 }
 else 
 {
  __return_2674 = 0;
 return __return_2674;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 else 
 {
 return __return_main;
 }
 }
 }