Trace number 1821489

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
APTUSAT 2009-03-22? (TO) 1200.03 1199.94

General information on the benchmark

NameAPPLICATIONS/bioinfo/
q_query_3_L200_coli.sat.cnf
MD5SUM853982f8646333d217e35d938b7eb00b
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark762.01
Satisfiable
(Un)Satisfiability was proved
Number of variables670867
Number of clauses3513333
Sum of the clauses size10259569
Maximum clause length11
Minimum clause length1
Number of clauses of size 159077
Number of clauses of size 2795777
Number of clauses of size 32146608
Number of clauses of size 4393835
Number of clauses of size 5117437
Number of clauses of size over 5599

Solver Data 

0.00/0.00	c Parsing...
3.11/3.16	c ==============================================================================
3.11/3.16	c |           |     ORIGINAL     |              LEARNT              |          |
3.11/3.16	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
3.11/3.16	c ==============================================================================
3.11/3.16	c |         0 | 3355019  9898785 | 1006505       0        0     nan |  0.000 % |
152.64/152.68	c |         0 | 1504771  5219166 |      --       0       --      -- |     --   | -1498875/-3723973
152.64/152.69	c ==============================================================================
152.64/152.69	c Result  :   #vars: 146997   #clauses: 1504771   #literals: 5219166
152.64/152.69	c CPU time:   152.07 s
152.64/152.69	c ==============================================================================
154.52/154.52	This is MiniSat 2.0 beta
154.52/154.52	WARNING: for repeatability, setting FPU to use double precision
154.52/154.52	============================[ Problem Statistics ]=============================
154.52/154.52	|                                                                             |
154.52/154.52	|  Number of variables:  146997                                               |
154.52/154.52	|  Number of clauses:    1504771                                              |
155.42/155.45	|  Parsing time:         0.79         s                                       |
155.52/155.52	============================[ Search Statistics ]==============================
155.52/155.52	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
155.52/155.52	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
155.52/155.52	===============================================================================
155.52/155.52	|         0 |  146997  1504771  5219166 |   501590        0    nan |  0.000 % |
155.52/155.56	|       100 |  146985  1504771  5219166 |   551749       97      7 |  0.010 % |
155.52/155.60	|       250 |  146978  1504771  5219166 |   606924      246      7 |  0.050 % |
155.62/155.62	|       475 |  146978  1504771  5219166 |   667616      471      8 |  0.050 % |
155.62/155.64	|       814 |  146972  1504771  5219166 |   734378      808     10 |  0.054 % |
155.62/155.66	|      1320 |  146972  1504771  5219166 |   807816     1314     10 |  0.054 % |
155.62/155.71	|      2081 |  146972  1504771  5219166 |   888597     2075     10 |  0.054 % |
155.82/155.82	|      3220 |  146972  1504771  5219166 |   977457     3214     10 |  0.054 % |
156.12/156.21	|      4928 |  146972  1504771  5219166 |  1075203     4922     11 |  0.054 % |
156.52/156.58	|      7490 |  146939  1504771  5219166 |  1182723     7478     11 |  0.165 % |
157.32/157.33	|     11335 |  146852  1504771  5219166 |  1300996    11319     11 |  0.176 % |
157.72/157.77	|     17102 |  146850  1504771  5219166 |  1431095    17084     11 |  0.178 % |
159.32/159.33	|     25751 |  146835  1504771  5219166 |  1574205    25731     11 |  0.196 % |
161.32/161.37	|     38725 |  146692  1462883  4972628 |  1731625    38076     13 |  0.254 % |
167.52/167.56	|     58186 |  146491  1457739  4946228 |  1904788    55492     15 |  0.345 % |
177.02/177.02	|     87378 |  146488  1457739  4946228 |  2095267    84682     16 |  0.346 % |
186.52/186.56	|    131167 |  145368  1402506  4665161 |  2304794    62284     12 |  1.236 % |
206.33/206.40	|    196851 |  143820  1385649  4586763 |  2535273   115194     15 |  2.587 % |
277.13/277.20	|    295379 |  142856  1354828  4432634 |  2788800   188074     17 |  2.827 % |
407.04/407.08	|    443169 |  142819  1354006  4429872 |  3067680   288653     22 |  2.842 % |
835.48/835.46	|    664852 |  142757  1353142  4425872 |  3374448   510304     25 |  2.884 % |
1200.02/1199.93	HOME/SatELiteGTI: line 36: 19022 Terminated              $MS $2 $TMP.cnf $TMP.result

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

runsolver version 3.2.9 (svn:503) (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w /tmp/evaluation-result-1821489-1242530984/watcher-1821489-1242530984 -o /tmp/evaluation-result-1821489-1242530984/solver-1821489-1242530984 -C 1200 -W 1800 -M 1800 SatELiteGTI HOME/instance-1821489-1242530984.cnf -restarts=1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 8192 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/93 18451
/proc/meminfo: memFree=738688/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=816 CPUtime=0
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4194304 73 0 0 0 0 0 0 0 25 0 1 0 1017600045 835584 9 4294967295 134512640 135223648 3219505568 3219505392 134743616 0 0 0 0 0 0 0 17 2 0 0 0
/proc/18455/statm: 205 22 15 174 0 30 0

[startup+0.107138 s]
/proc/loadavg: 1.00 1.00 1.00 3/93 18451
/proc/meminfo: memFree=738688/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=50720 CPUtime=0.11
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 6790 0 0 0 11 0 0 0 25 0 1 0 1017600045 51937280 6629 4294967295 134512640 135223648 3219505568 3219504448 134543028 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 12680 6632 47 174 0 12505 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 53136

[startup+0.207128 s]
/proc/loadavg: 1.00 1.00 1.00 3/93 18451
/proc/meminfo: memFree=738688/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=57172 CPUtime=0.21
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 9738 0 0 0 18 3 0 0 25 0 1 0 1017600045 58544128 9577 4294967295 134512640 135223648 3219505568 3219504068 134719062 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 14293 9578 47 174 0 14118 0
Current children cumulated CPU time (s) 0.21
Current children cumulated vsize (KiB) 59588

[startup+0.307118 s]
/proc/loadavg: 1.00 1.00 1.00 3/93 18451
/proc/meminfo: memFree=738688/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=65356 CPUtime=0.31
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 12398 0 0 0 27 4 0 0 25 0 1 0 1017600045 66924544 12237 4294967295 134512640 135223648 3219505568 3219504520 134737310 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 16339 12238 47 174 0 16164 0
Current children cumulated CPU time (s) 0.31
Current children cumulated vsize (KiB) 67772

[startup+0.707079 s]
/proc/loadavg: 1.00 1.00 1.00 3/93 18451
/proc/meminfo: memFree=738688/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=99548 CPUtime=0.71
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 23022 0 0 0 62 9 0 0 25 0 1 0 1017600045 101937152 22861 4294967295 134512640 135223648 3219505568 3219504168 134719062 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 24887 22862 47 174 0 24712 0
Current children cumulated CPU time (s) 0.71
Current children cumulated vsize (KiB) 101964

[startup+1.507 s]
/proc/loadavg: 1.00 1.00 1.00 2/95 18456
/proc/meminfo: memFree=606232/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=212216 CPUtime=1.51
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 43777 0 0 0 123 28 0 0 25 0 1 0 1017600045 217309184 43616 4294967295 134512640 135223648 3219505568 3219504520 134737310 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 53054 43617 47 174 0 52879 0
Current children cumulated CPU time (s) 1.51
Current children cumulated vsize (KiB) 214632

[startup+3.10684 s]
/proc/loadavg: 1.00 1.00 1.00 2/95 18458
/proc/meminfo: memFree=515712/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=361268 CPUtime=3.11
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 79884 0 0 0 270 41 0 0 25 0 1 0 1017600045 369938432 79723 4294967295 134512640 135223648 3219505568 3219504576 134547546 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 90317 79725 47 174 0 90142 0
Current children cumulated CPU time (s) 3.11
Current children cumulated vsize (KiB) 363684

[startup+6.30653 s]
/proc/loadavg: 1.00 1.00 1.00 2/95 18458
/proc/meminfo: memFree=406004/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=383020 CPUtime=6.31
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 83701 0 0 0 587 44 0 0 25 0 1 0 1017600045 392212480 83540 4294967295 134512640 135223648 3219505568 3219504064 134548581 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 95755 83540 67 174 0 95580 0
Current children cumulated CPU time (s) 6.31
Current children cumulated vsize (KiB) 385436

[startup+12.7059 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 18641
/proc/meminfo: memFree=375676/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=428656 CPUtime=12.71
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 91145 0 0 0 1224 47 0 0 25 0 1 0 1017600045 438943744 90857 4294967295 134512640 135223648 3219505568 3219503648 134548577 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 107164 90857 72 174 0 106989 0
Current children cumulated CPU time (s) 12.71
Current children cumulated vsize (KiB) 431072

[startup+25.5047 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 18641
/proc/meminfo: memFree=375772/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=428656 CPUtime=25.51
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 91160 0 0 0 2504 47 0 0 25 0 1 0 1017600045 438943744 90872 4294967295 134512640 135223648 3219505568 3219503648 134548565 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 107164 90872 72 174 0 106989 0
Current children cumulated CPU time (s) 25.51
Current children cumulated vsize (KiB) 431072

[startup+51.1121 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 18647
/proc/meminfo: memFree=375656/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=428204 CPUtime=51.12
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 91230 0 0 0 5065 47 0 0 25 0 1 0 1017600045 438480896 90829 4294967295 134512640 135223648 3219505568 3219503648 134548212 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 107051 90829 72 174 0 106876 0
Current children cumulated CPU time (s) 51.12
Current children cumulated vsize (KiB) 430620

[startup+102.307 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 18832
/proc/meminfo: memFree=375788/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2416 CPUtime=0
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 369 643 0 0 0 0 0 0 25 0 1 0 1017600045 2473984 277 4294967295 134512640 135169312 3216082528 3216081064 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 604 277 235 161 0 43 0
[pid=18455] ppid=18451 vsize=430236 CPUtime=102.32
/proc/18455/stat : 18455 (SatELite_releas) R 18451 18451 20977 0 -1 4202496 91399 0 0 0 10184 48 0 0 25 0 1 0 1017600045 440561664 90866 4294967295 134512640 135223648 3219505568 3219503648 134548215 0 0 0 3 0 0 0 17 2 0 0 0
/proc/18455/statm: 107559 90866 72 174 0 107384 0
Current children cumulated CPU time (s) 102.32
Current children cumulated vsize (KiB) 432652

[startup+162.321 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 19022
/proc/meminfo: memFree=593660/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=81924 CPUtime=7.8
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 19924 0 0 0 765 15 0 0 25 0 1 0 1017615497 83890176 19814 4294967295 134512640 135213731 3217141696 3217139888 134527361 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 20481 19814 74 172 0 20307 0
Current children cumulated CPU time (s) 162.32
Current children cumulated vsize (KiB) 84344

[startup+222.325 s]
/proc/loadavg: 1.00 1.00 1.00 2/95 19209
/proc/meminfo: memFree=586032/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=89236 CPUtime=67.81
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 21706 0 0 0 6764 17 0 0 25 0 1 0 1017615497 91377664 21596 4294967295 134512640 135213731 3217141696 3217140176 134529947 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 22309 21596 74 172 0 22135 0
Current children cumulated CPU time (s) 222.33
Current children cumulated vsize (KiB) 91656

[startup+282.319 s]
/proc/loadavg: 1.05 1.01 1.00 3/95 19402
/proc/meminfo: memFree=580104/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=95412 CPUtime=127.81
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 23233 0 0 0 12763 18 0 0 25 0 1 0 1017615497 97701888 23123 4294967295 134512640 135213731 3217141696 3217140176 134530208 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 23853 23123 74 172 0 23679 0
Current children cumulated CPU time (s) 282.33
Current children cumulated vsize (KiB) 97832

[startup+342.314 s]
/proc/loadavg: 1.02 1.01 1.00 2/95 19589
/proc/meminfo: memFree=572664/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=103076 CPUtime=187.81
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 25099 0 0 0 18760 21 0 0 25 0 1 0 1017615497 105549824 24989 4294967295 134512640 135213731 3217141696 3217140176 134529996 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 25769 24989 74 172 0 25595 0
Current children cumulated CPU time (s) 342.33

################
# More data... #
################

[pid=19022] ppid=18451 vsize=115972 CPUtime=307.83
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 28247 0 0 0 30761 22 0 0 25 0 1 0 1017615497 118755328 28137 4294967295 134512640 135213731 3217141696 3217140176 134530208 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 28993 28137 74 172 0 28819 0
Current children cumulated CPU time (s) 462.35
Current children cumulated vsize (KiB) 118392

[startup+522.316 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 20152
/proc/meminfo: memFree=554932/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=121136 CPUtime=367.83
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 29592 0 0 0 36758 25 0 0 25 0 1 0 1017615497 124043264 29482 4294967295 134512640 135213731 3217141696 3217140176 134530208 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 30284 29482 74 172 0 30110 0
Current children cumulated CPU time (s) 522.35
Current children cumulated vsize (KiB) 123556

[startup+582.32 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 20341
/proc/meminfo: memFree=549848/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=126136 CPUtime=427.84
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 30870 0 0 0 42757 27 0 0 25 0 1 0 1017615497 129163264 30760 4294967295 134512640 135213731 3217141696 3217140176 134530021 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 31534 30760 74 172 0 31360 0
Current children cumulated CPU time (s) 582.36
Current children cumulated vsize (KiB) 128556

[startup+642.324 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 20532
/proc/meminfo: memFree=545880/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=130544 CPUtime=487.85
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 32005 0 0 0 48757 28 0 0 25 0 1 0 1017615497 133677056 31895 4294967295 134512640 135213731 3217141696 3217140176 134530034 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 32636 31895 74 172 0 32462 0
Current children cumulated CPU time (s) 642.37
Current children cumulated vsize (KiB) 132964

[startup+702.318 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 20719
/proc/meminfo: memFree=541044/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=135100 CPUtime=547.85
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 33157 0 0 0 54756 29 0 0 25 0 1 0 1017615497 138342400 33047 4294967295 134512640 135213731 3217141696 3217140176 134530208 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 33775 33047 74 172 0 33601 0
Current children cumulated CPU time (s) 702.37
Current children cumulated vsize (KiB) 137520

[startup+762.312 s]
/proc/loadavg: 1.00 1.00 1.00 3/95 20908
/proc/meminfo: memFree=537696/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=139540 CPUtime=607.85
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 34053 0 0 0 60756 29 0 0 25 0 1 0 1017615497 142888960 33943 4294967295 134512640 135213731 3217141696 3217140176 134530208 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 34885 33943 74 172 0 34711 0
Current children cumulated CPU time (s) 762.37
Current children cumulated vsize (KiB) 141960

[startup+822.317 s]
/proc/loadavg: 1.24 1.05 1.02 3/95 21100
/proc/meminfo: memFree=533604/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=143500 CPUtime=667.86
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 35061 0 0 0 66755 31 0 0 25 0 1 0 1017615497 146944000 34951 4294967295 134512640 135213731 3217141696 3217140176 134529996 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 35875 34951 74 172 0 35701 0
Current children cumulated CPU time (s) 822.38
Current children cumulated vsize (KiB) 145920

[startup+882.321 s]
/proc/loadavg: 1.09 1.04 1.01 3/95 21289
/proc/meminfo: memFree=529512/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=147172 CPUtime=727.87
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 35989 0 0 0 72751 36 0 0 25 0 1 0 1017615497 150704128 35879 4294967295 134512640 135213731 3217141696 3217140176 134529996 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 36793 35879 74 172 0 36619 0
Current children cumulated CPU time (s) 882.39
Current children cumulated vsize (KiB) 149592

[startup+942.325 s]
/proc/loadavg: 1.03 1.03 1.00 3/95 21476
/proc/meminfo: memFree=526784/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=150440 CPUtime=787.88
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 36759 0 0 0 78750 38 0 0 25 0 1 0 1017615497 154050560 36649 4294967295 134512640 135213731 3217141696 3217140176 134530208 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 37610 36649 74 172 0 37436 0
Current children cumulated CPU time (s) 942.4
Current children cumulated vsize (KiB) 152860

[startup+1002.32 s]
/proc/loadavg: 1.01 1.02 1.00 3/95 21663
/proc/meminfo: memFree=523312/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=154084 CPUtime=847.88
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 37645 0 0 0 84748 40 0 0 25 0 1 0 1017615497 157782016 37535 4294967295 134512640 135213731 3217141696 3217140176 134530208 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 38521 37535 74 172 0 38347 0
Current children cumulated CPU time (s) 1002.4
Current children cumulated vsize (KiB) 156504

[startup+1062.31 s]
/proc/loadavg: 1.13 1.05 1.01 2/95 21856
/proc/meminfo: memFree=520460/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=156536 CPUtime=907.88
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 38292 0 0 0 90747 41 0 0 25 0 1 0 1017615497 160292864 38182 4294967295 134512640 135213731 3217141696 3217140176 134530114 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 39134 38182 74 172 0 38960 0
Current children cumulated CPU time (s) 1062.4
Current children cumulated vsize (KiB) 158956

[startup+1122.32 s]
/proc/loadavg: 1.11 1.06 1.01 2/95 22043
/proc/meminfo: memFree=520212/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=156800 CPUtime=967.89
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 38355 0 0 0 96742 47 0 0 25 0 1 0 1017615497 160563200 38245 4294967295 134512640 135213731 3217141696 3217140176 134530208 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 39200 38245 74 172 0 39026 0
Current children cumulated CPU time (s) 1122.41
Current children cumulated vsize (KiB) 159220

[startup+1182.31 s]
/proc/loadavg: 1.04 1.05 1.01 3/95 22232
/proc/meminfo: memFree=519964/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=156800 CPUtime=1027.89
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 38372 0 0 0 102738 51 0 0 25 0 1 0 1017615497 160563200 38262 4294967295 134512640 135213731 3217141696 3217140176 134529917 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 39200 38262 74 172 0 39026 0
Current children cumulated CPU time (s) 1182.41
Current children cumulated vsize (KiB) 159220



Maximum CPU time exceeded: sending SIGTERM then SIGKILL

[startup+1199.92 s]
/proc/loadavg: 1.03 1.05 1.01 3/95 22232
/proc/meminfo: memFree=519964/2074464 swapFree=1951864/1959888
[pid=18451] ppid=18449 vsize=2420 CPUtime=154.52
/proc/18451/stat : 18451 (SatELiteGTI) S 18449 18451 20977 0 -1 4194304 386 115252 0 0 0 0 15383 69 18 0 1 0 1017600045 2478080 278 4294967295 134512640 135169312 3216082528 3216078744 3085147886 0 65536 4 65538 3222381614 0 0 17 1 0 0 0
/proc/18451/statm: 605 278 235 161 0 44 0
[pid=19022] ppid=18451 vsize=156800 CPUtime=1045.5
/proc/19022/stat : 19022 (minisat_static) R 18451 18451 20977 0 -1 4202496 38372 0 0 0 104499 51 0 0 25 0 1 0 1017615497 160563200 38262 4294967295 134512640 135213731 3217141696 3217140176 134529987 0 0 0 3 0 0 0 17 2 0 0 0
/proc/19022/statm: 39200 38262 74 172 0 39026 0
Current children cumulated CPU time (s) 1200.02
Current children cumulated vsize (KiB) 159220

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Solver just ended. Dumping a history of the last processes samples

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1199.94
CPU time (s): 1200.03
CPU user time (s): 1198.82
CPU system time (s): 1.21
CPU usage (%): 100.008
Max. virtual memory (cumulated for all children) (KiB): 463632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1198.82
system time used= 1.21
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 154103
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 20
involuntary context switches= 1333

runsolver used 0 second user time and 0 second system time

The end

Launcher Data 

Begin job on tipi10 at 2009-05-17 05:29:44
IDJOB=1821489
IDBENCH=70965
IDSOLVER=662
FILE ID=tipi10/1821489-1242530984
PBS_JOBID=
Free space on /tmp= 4049 MiB

SOLVER NAME= APTUSAT 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/bioinfo/q_query_3_L200_coli.sat.cnf
COMMAND LINE= SatELiteGTI BENCHNAME -restarts=1
RUNSOLVER COMMAND LINE= runsolver --timestamp  -w /tmp/evaluation-result-1821489-1242530984/watcher-1821489-1242530984 -o /tmp/evaluation-result-1821489-1242530984/solver-1821489-1242530984 -C 1200 -W 1800 -M 1800  SatELiteGTI HOME/instance-1821489-1242530984.cnf -restarts=1

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 853982f8646333d217e35d938b7eb00b
RANDOM SEED= 1266996643

Linux tipi10 2.6.18 #19 SMP Tue Jun 19 11:27:27 CEST 2007 i686 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 33
model name	: Dual Core AMD Opteron(tm) Processor 265
stepping	: 2
cpu MHz		: 1808.367
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp
bogomips	: 3618.37

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 33
model name	: Dual Core AMD Opteron(tm) Processor 265
stepping	: 2
cpu MHz		: 1808.367
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp
bogomips	: 3616.77

processor	: 2
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 33
model name	: Dual Core AMD Opteron(tm) Processor 265
stepping	: 2
cpu MHz		: 1808.367
cache size	: 1024 KB
physical id	: 1
siblings	: 2
core id		: 0
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp
bogomips	: 3616.77

processor	: 3
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 33
model name	: Dual Core AMD Opteron(tm) Processor 265
stepping	: 2
cpu MHz		: 1808.367
cache size	: 1024 KB
physical id	: 1
siblings	: 2
core id		: 1
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp
bogomips	: 3616.77


/proc/meminfo:
MemTotal:      2074464 kB
MemFree:        738588 kB
Buffers:         29376 kB
Cached:        1186524 kB
SwapCached:       2732 kB
Active:         568148 kB
Inactive:       657664 kB
HighTotal:     1178688 kB
HighFree:       186420 kB
LowTotal:       895776 kB
LowFree:        552168 kB
SwapTotal:     1959888 kB
SwapFree:      1951864 kB
Dirty:           73244 kB
Writeback:           4 kB
AnonPages:        9440 kB
Mapped:           3176 kB
Slab:           100704 kB
PageTables:        540 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   2997120 kB
Committed_AS:    90596 kB
VmallocTotal:   114680 kB
VmallocUsed:      1324 kB
VmallocChunk:   113264 kB

Free space on /tmp at the end= 4020 MiB
End job on tipi10 at 2009-05-17 05:49:52