Showing error 427

User: Jiri Slaby
Error type: Reachable Error Location
Error type description: A specified error location is reachable in some program path
File location: ldv-linux-3.4/32_1_cilled_safe_ok_nondet_linux-3.4-32_1-drivers--media--rc--keymaps--rc-lirc.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.c
Line in file: 306
Project: SV-COMP 2013
Project version: 2.6.28
Tools: Manual Work
Entered: 2013-01-17 16:57:54 UTC


Source:

  1/* Generated by CIL v. 1.3.7 */
  2/* print_CIL_Input is true */
  3
  4#line 46 "include/asm-generic/int-ll64.h"
  5typedef unsigned short u16;
  6#line 49 "include/asm-generic/int-ll64.h"
  7typedef unsigned int u32;
  8#line 52 "include/asm-generic/int-ll64.h"
  9typedef unsigned long long u64;
 10#line 219 "include/linux/types.h"
 11struct __anonstruct_atomic_t_7 {
 12   int counter ;
 13};
 14#line 219 "include/linux/types.h"
 15typedef struct __anonstruct_atomic_t_7 atomic_t;
 16#line 229 "include/linux/types.h"
 17struct list_head {
 18   struct list_head *next ;
 19   struct list_head *prev ;
 20};
 21#line 20 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/thread_info.h"
 22struct task_struct;
 23#line 20
 24struct task_struct;
 25#line 7 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/processor.h"
 26struct task_struct;
 27#line 52 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/paravirt_types.h"
 28struct task_struct;
 29#line 329
 30struct arch_spinlock;
 31#line 329
 32struct arch_spinlock;
 33#line 139 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/ptrace.h"
 34struct task_struct;
 35#line 8 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/current.h"
 36struct task_struct;
 37#line 14 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/spinlock_types.h"
 38typedef u16 __ticket_t;
 39#line 15 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/spinlock_types.h"
 40typedef u32 __ticketpair_t;
 41#line 20 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/spinlock_types.h"
 42struct __raw_tickets {
 43   __ticket_t head ;
 44   __ticket_t tail ;
 45};
 46#line 20 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/spinlock_types.h"
 47union __anonunion____missing_field_name_36 {
 48   __ticketpair_t head_tail ;
 49   struct __raw_tickets tickets ;
 50};
 51#line 20 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/spinlock_types.h"
 52struct arch_spinlock {
 53   union __anonunion____missing_field_name_36 __annonCompField17 ;
 54};
 55#line 20 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/spinlock_types.h"
 56typedef struct arch_spinlock arch_spinlock_t;
 57#line 12 "include/linux/lockdep.h"
 58struct task_struct;
 59#line 20 "include/linux/spinlock_types.h"
 60struct raw_spinlock {
 61   arch_spinlock_t raw_lock ;
 62   unsigned int magic ;
 63   unsigned int owner_cpu ;
 64   void *owner ;
 65};
 66#line 64 "include/linux/spinlock_types.h"
 67union __anonunion____missing_field_name_39 {
 68   struct raw_spinlock rlock ;
 69};
 70#line 64 "include/linux/spinlock_types.h"
 71struct spinlock {
 72   union __anonunion____missing_field_name_39 __annonCompField19 ;
 73};
 74#line 64 "include/linux/spinlock_types.h"
 75typedef struct spinlock spinlock_t;
 76#line 55 "include/linux/wait.h"
 77struct task_struct;
 78#line 48 "include/linux/mutex.h"
 79struct mutex {
 80   atomic_t count ;
 81   spinlock_t wait_lock ;
 82   struct list_head wait_list ;
 83   struct task_struct *owner ;
 84   char const   *name ;
 85   void *magic ;
 86};
 87#line 8 "include/linux/debug_locks.h"
 88struct task_struct;
 89#line 48
 90struct task_struct;
 91#line 18 "include/linux/capability.h"
 92struct task_struct;
 93#line 31 "include/media/rc-map.h"
 94struct rc_map_table {
 95   u32 scancode ;
 96   u32 keycode ;
 97};
 98#line 36 "include/media/rc-map.h"
 99struct rc_map {
100   struct rc_map_table *scan ;
101   unsigned int size ;
102   unsigned int len ;
103   unsigned int alloc ;
104   u64 rc_type ;
105   char const   *name ;
106   spinlock_t lock ;
107};
108#line 46 "include/media/rc-map.h"
109struct rc_map_list {
110   struct list_head list ;
111   struct rc_map map ;
112};
113#line 270 "/home/zakharov/launch/inst/current/envs/linux-3.4/linux-3.4/arch/x86/include/asm/elf.h"
114struct task_struct;
115#line 20 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
116struct __anonstruct_237 {
117   int  : 0 ;
118};
119#line 1 "<compiler builtins>"
120long __builtin_expect(long val , long res ) ;
121#line 152 "include/linux/mutex.h"
122void mutex_lock(struct mutex *lock ) ;
123#line 153
124int __attribute__((__warn_unused_result__))  mutex_lock_interruptible(struct mutex *lock ) ;
125#line 154
126int __attribute__((__warn_unused_result__))  mutex_lock_killable(struct mutex *lock ) ;
127#line 168
128int mutex_trylock(struct mutex *lock ) ;
129#line 169
130void mutex_unlock(struct mutex *lock ) ;
131#line 170
132int atomic_dec_and_mutex_lock(atomic_t *cnt , struct mutex *lock ) ;
133#line 53 "include/media/rc-map.h"
134extern int rc_map_register(struct rc_map_list *map ) ;
135#line 54
136extern void rc_map_unregister(struct rc_map_list *map ) ;
137#line 67 "include/linux/module.h"
138int init_module(void) ;
139#line 68
140void cleanup_module(void) ;
141#line 16 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
142static struct rc_map_table lirc[]  = { };
143#line 20 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
144static struct rc_map_list lirc_map  =    {{(struct list_head *)0, (struct list_head *)0}, {lirc, (unsigned int )(sizeof(lirc) / sizeof(lirc[0]) + sizeof(struct __anonstruct_237 )),
145                                                     0U, 0U, (u64 )(1 << 30), "rc-lirc",
146                                                     {{{{{0U}}, 0U, 0U, (void *)0}}}}};
147#line 29
148static int init_rc_map_lirc(void)  __attribute__((__section__(".init.text"), __no_instrument_function__)) ;
149#line 29 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
150static int init_rc_map_lirc(void) 
151{ int tmp ;
152
153  {
154  {
155#line 31
156  tmp = rc_map_register(& lirc_map);
157  }
158#line 31
159  return (tmp);
160}
161}
162#line 34
163static void exit_rc_map_lirc(void)  __attribute__((__section__(".exit.text"), __no_instrument_function__)) ;
164#line 34 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
165static void exit_rc_map_lirc(void) 
166{ 
167
168  {
169  {
170#line 36
171  rc_map_unregister(& lirc_map);
172  }
173#line 37
174  return;
175}
176}
177#line 39 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
178int init_module(void) 
179{ int tmp ;
180
181  {
182  {
183#line 39
184  tmp = init_rc_map_lirc();
185  }
186#line 39
187  return (tmp);
188}
189}
190#line 40 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
191void cleanup_module(void) 
192{ 
193
194  {
195  {
196#line 40
197  exit_rc_map_lirc();
198  }
199#line 40
200  return;
201}
202}
203#line 42 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
204static char const   __mod_license42[12]  __attribute__((__used__, __unused__, __section__(".modinfo"),
205__aligned__(1)))  = 
206#line 42
207  {      (char const   )'l',      (char const   )'i',      (char const   )'c',      (char const   )'e', 
208        (char const   )'n',      (char const   )'s',      (char const   )'e',      (char const   )'=', 
209        (char const   )'G',      (char const   )'P',      (char const   )'L',      (char const   )'\000'};
210#line 43 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
211static char const   __mod_author43[39]  __attribute__((__used__, __unused__, __section__(".modinfo"),
212__aligned__(1)))  = 
213#line 43
214  {      (char const   )'a',      (char const   )'u',      (char const   )'t',      (char const   )'h', 
215        (char const   )'o',      (char const   )'r',      (char const   )'=',      (char const   )'J', 
216        (char const   )'a',      (char const   )'r',      (char const   )'o',      (char const   )'d', 
217        (char const   )' ',      (char const   )'W',      (char const   )'i',      (char const   )'l', 
218        (char const   )'s',      (char const   )'o',      (char const   )'n',      (char const   )' ', 
219        (char const   )'<',      (char const   )'j',      (char const   )'a',      (char const   )'r', 
220        (char const   )'o',      (char const   )'d',      (char const   )'@',      (char const   )'r', 
221        (char const   )'e',      (char const   )'d',      (char const   )'h',      (char const   )'a', 
222        (char const   )'t',      (char const   )'.',      (char const   )'c',      (char const   )'o', 
223        (char const   )'m',      (char const   )'>',      (char const   )'\000'};
224#line 61
225void ldv_check_final_state(void) ;
226#line 67
227extern void ldv_initialize(void) ;
228#line 70
229extern int __VERIFIER_nondet_int(void) ;
230#line 73 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
231int LDV_IN_INTERRUPT  ;
232#line 76 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
233void main(void) 
234{ int tmp ;
235  int tmp___0 ;
236  int tmp___1 ;
237
238  {
239  {
240#line 88
241  LDV_IN_INTERRUPT = 1;
242#line 97
243  ldv_initialize();
244#line 103
245  tmp = init_rc_map_lirc();
246  }
247#line 103
248  if (tmp) {
249#line 104
250    goto ldv_final;
251  } else {
252
253  }
254  {
255#line 106
256  while (1) {
257    while_continue: /* CIL Label */ ;
258    {
259#line 106
260    tmp___1 = __VERIFIER_nondet_int();
261    }
262#line 106
263    if (tmp___1) {
264
265    } else {
266#line 106
267      goto while_break;
268    }
269    {
270#line 109
271    tmp___0 = __VERIFIER_nondet_int();
272    }
273    {
274#line 111
275    goto switch_default;
276#line 109
277    if (0) {
278      switch_default: /* CIL Label */ 
279#line 111
280      goto switch_break;
281    } else {
282      switch_break: /* CIL Label */ ;
283    }
284    }
285  }
286  while_break: /* CIL Label */ ;
287  }
288  {
289#line 123
290  exit_rc_map_lirc();
291  }
292  ldv_final: 
293  {
294#line 126
295  ldv_check_final_state();
296  }
297#line 129
298  return;
299}
300}
301#line 5 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/engine-blast-assert.h"
302void ldv_blast_assert(void) 
303{ 
304
305  {
306  ERROR: 
307#line 6
308  goto ERROR;
309}
310}
311#line 6 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/engine-blast.h"
312extern int __VERIFIER_nondet_int(void) ;
313#line 19 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/model0032.c"
314int ldv_mutex  =    1;
315#line 22 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/model0032.c"
316int __attribute__((__warn_unused_result__))  mutex_lock_interruptible(struct mutex *lock ) 
317{ int nondetermined ;
318
319  {
320#line 29
321  if (ldv_mutex == 1) {
322
323  } else {
324    {
325#line 29
326    ldv_blast_assert();
327    }
328  }
329  {
330#line 32
331  nondetermined = __VERIFIER_nondet_int();
332  }
333#line 35
334  if (nondetermined) {
335#line 38
336    ldv_mutex = 2;
337#line 40
338    return (0);
339  } else {
340#line 45
341    return (-4);
342  }
343}
344}
345#line 50 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/model0032.c"
346int __attribute__((__warn_unused_result__))  mutex_lock_killable(struct mutex *lock ) 
347{ int nondetermined ;
348
349  {
350#line 57
351  if (ldv_mutex == 1) {
352
353  } else {
354    {
355#line 57
356    ldv_blast_assert();
357    }
358  }
359  {
360#line 60
361  nondetermined = __VERIFIER_nondet_int();
362  }
363#line 63
364  if (nondetermined) {
365#line 66
366    ldv_mutex = 2;
367#line 68
368    return (0);
369  } else {
370#line 73
371    return (-4);
372  }
373}
374}
375#line 78 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/model0032.c"
376int atomic_dec_and_mutex_lock(atomic_t *cnt , struct mutex *lock ) 
377{ int atomic_value_after_dec ;
378
379  {
380#line 83
381  if (ldv_mutex == 1) {
382
383  } else {
384    {
385#line 83
386    ldv_blast_assert();
387    }
388  }
389  {
390#line 86
391  atomic_value_after_dec = __VERIFIER_nondet_int();
392  }
393#line 89
394  if (atomic_value_after_dec == 0) {
395#line 92
396    ldv_mutex = 2;
397#line 94
398    return (1);
399  } else {
400
401  }
402#line 98
403  return (0);
404}
405}
406#line 103 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/model0032.c"
407void mutex_lock(struct mutex *lock ) 
408{ 
409
410  {
411#line 108
412  if (ldv_mutex == 1) {
413
414  } else {
415    {
416#line 108
417    ldv_blast_assert();
418    }
419  }
420#line 110
421  ldv_mutex = 2;
422#line 111
423  return;
424}
425}
426#line 114 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/model0032.c"
427int mutex_trylock(struct mutex *lock ) 
428{ int nondetermined ;
429
430  {
431#line 121
432  if (ldv_mutex == 1) {
433
434  } else {
435    {
436#line 121
437    ldv_blast_assert();
438    }
439  }
440  {
441#line 124
442  nondetermined = __VERIFIER_nondet_int();
443  }
444#line 127
445  if (nondetermined) {
446#line 130
447    ldv_mutex = 2;
448#line 132
449    return (1);
450  } else {
451#line 137
452    return (0);
453  }
454}
455}
456#line 142 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/model0032.c"
457void mutex_unlock(struct mutex *lock ) 
458{ 
459
460  {
461#line 147
462  if (ldv_mutex == 2) {
463
464  } else {
465    {
466#line 147
467    ldv_blast_assert();
468    }
469  }
470#line 149
471  ldv_mutex = 1;
472#line 150
473  return;
474}
475}
476#line 153 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/kernel-rules/files/model0032.c"
477void ldv_check_final_state(void) 
478{ 
479
480  {
481#line 156
482  if (ldv_mutex == 1) {
483
484  } else {
485    {
486#line 156
487    ldv_blast_assert();
488    }
489  }
490#line 157
491  return;
492}
493}
494#line 138 "/home/zakharov/launch/work/current--X--drivers/--X--defaultlinux-3.4--X--32_1--X--cpachecker/linux-3.4/csd_deg_dscv/12910/dscv_tempdir/dscv/ri/32_1/drivers/media/rc/keymaps/rc-lirc.c.common.c"
495long s__builtin_expect(long val , long res ) 
496{ 
497
498  {
499#line 139
500  return (val);
501}
502}