Trace number 1554125

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 38.4102 38.4221

General information on the benchmark

NameAPPLICATIONS/bitverif/countbitsrotate/
countbitsrotate016.cnf
MD5SUMcb3e934c498918abbc8bcf7f964c0d21
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark19.837
Satisfiable
(Un)Satisfiability was proved
Number of variables2087
Number of clauses6212
Sum of the clauses size14492
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 24140
Number of clauses of size 32070
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:          2087                                         |
0.00/0.00	c |  Number of clauses:            6210                                         |
0.00/0.00	c |  Parse time:                   0.00 s                                       |
0.01/0.02	c |  Simplification time:          0.01 s                                       |
0.01/0.02	c |                                                                             |
0.01/0.02	c ============================[ Search Statistics ]==============================
0.01/0.02	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.01/0.02	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.01/0.02	c ===============================================================================
0.01/0.02	c |       100 |    1050     4553    12903 |     1669       91     15 |  3.354 % |
0.01/0.05	c |       250 |    1050     4227    11964 |     1836      224     14 |  3.354 % |
0.09/0.10	c |       475 |    1050     4227    11964 |     2020      449     13 |  3.354 % |
0.09/0.17	c |       812 |    1050     4227    11964 |     2222      786     13 |  3.354 % |
0.19/0.27	c |      1318 |    1050     4227    11964 |     2444     1292     13 |  3.354 % |
0.39/0.42	c |      2077 |    1050     4227    11964 |     2688     2051     12 |  3.354 % |
0.59/0.66	c |      3216 |    1050     4227    11964 |     2957     1742     12 |  3.354 % |
1.00/1.01	c |      4924 |    1050     4227    11964 |     3253     1932     13 |  3.354 % |
1.49/1.59	c |      7486 |    1050     4227    11964 |     3578     2791     11 |  3.355 % |
2.29/2.38	c |     11330 |    1050     4227    11964 |     3936     2873     12 |  3.354 % |
3.59/3.60	c |     17096 |    1050     4227    11964 |     4330     2390     11 |  3.355 % |
5.39/5.45	c |     25745 |    1050     4227    11964 |     4763     4259     12 |  3.354 % |
8.19/8.26	c |     38719 |    1050     4227    11964 |     5239     4842     10 |  3.355 % |
12.58/12.60	c |     58180 |    1050     4227    11964 |     5763     5298     11 |  3.354 % |
18.98/19.08	c |     87372 |    1050     4227    11964 |     6339     4810      9 |  3.354 % |
28.78/28.87	c |    131161 |    1050     4227    11964 |     6973     6243     10 |  3.355 % |
38.39/38.42	c ===============================================================================
38.39/38.42	c restarts              : 476
38.39/38.42	c conflicts             : 173747         (4525 /sec)
38.39/38.42	c decisions             : 179893         (4685 /sec)
38.39/38.42	c propagations          : 123439201      (3214967 /sec)
38.39/38.42	c conflict literals     : 1792860        (92.50 % deleted)
38.39/38.42	c Memory used           : 18.58 MB
38.39/38.42	c CPU time              : 38.3952 s
38.39/38.42	c 
38.39/38.42	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1554125-1238723722/watcher-1554125-1238723722 -o /tmp/evaluation-result-1554125-1238723722/solver-1554125-1238723722 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1554125-1238723722.cnf 

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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.97 1.00 2/73 1416
/proc/meminfo: memFree=1858648/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=7748 CPUtime=0
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 239 0 0 0 0 0 0 0 21 0 1 0 1145036718 7933952 223 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 1937 227 63 219 0 1715 0

[startup+0.016986 s]
/proc/loadavg: 0.99 0.97 1.00 2/73 1416
/proc/meminfo: memFree=1858648/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=8080 CPUtime=0.01
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 367 0 0 0 1 0 0 0 21 0 1 0 1145036718 8273920 351 1992294400 4194304 5092341 548682068832 18446744073709551615 4489562 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 2020 351 88 219 0 1798 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 8080

[startup+0.101996 s]
/proc/loadavg: 0.99 0.97 1.00 2/73 1416
/proc/meminfo: memFree=1858648/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=8080 CPUtime=0.09
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 404 0 0 0 9 0 0 0 21 0 1 0 1145036718 8273920 341 1992294400 4194304 5092341 548682068832 18446744073709551615 4249494 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 2020 341 100 219 0 1798 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8080

[startup+0.302019 s]
/proc/loadavg: 0.99 0.97 1.00 2/73 1416
/proc/meminfo: memFree=1858648/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=8080 CPUtime=0.29
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 418 0 0 0 29 0 0 0 23 0 1 0 1145036718 8273920 355 1992294400 4194304 5092341 548682068832 18446744073709551615 4249091 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 2020 355 100 219 0 1798 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8080

[startup+0.701065 s]
/proc/loadavg: 0.99 0.97 1.00 2/73 1416
/proc/meminfo: memFree=1858648/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=8080 CPUtime=0.69
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 482 0 0 0 69 0 0 0 25 0 1 0 1145036718 8273920 361 1992294400 4194304 5092341 548682068832 18446744073709551615 4250134 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 2020 361 100 219 0 1798 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8080

[startup+1.50116 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1857296/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=18460 CPUtime=1.49
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 609 0 0 0 149 0 0 0 25 0 1 0 1145036718 18903040 488 1992294400 4194304 5092341 548682068832 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4615 488 100 219 0 4393 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 18460

[startup+3.10134 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1856912/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=8200 CPUtime=3.09
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 768 0 0 0 309 0 0 0 25 0 1 0 1145036718 8396800 469 1992294400 4194304 5092341 548682068832 18446744073709551615 4240672 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 2050 469 100 219 0 1828 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8200

[startup+6.30171 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1856400/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=18608 CPUtime=6.29
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 918 0 0 0 629 0 0 0 25 0 1 0 1145036718 19054592 619 1992294400 4194304 5092341 548682068832 18446744073709551615 4249605 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4652 619 100 219 0 4430 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18608

[startup+12.7015 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1856208/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=18608 CPUtime=12.68
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 934 0 0 0 1268 0 0 0 25 0 1 0 1145036718 19054592 635 1992294400 4194304 5092341 548682068832 18446744073709551615 4241011 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4652 635 100 219 0 4430 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 18608

[startup+25.5019 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1855312/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=19024 CPUtime=25.48
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 1379 0 0 0 2547 1 0 0 25 0 1 0 1145036718 19480576 863 1992294400 4194304 5092341 548682068832 18446744073709551615 4250031 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4756 863 100 219 0 4534 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 19024

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

[startup+31.9067 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1855248/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=19024 CPUtime=31.89
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 1392 0 0 0 3188 1 0 0 25 0 1 0 1145036718 19480576 876 1992294400 4194304 5092341 548682068832 18446744073709551615 4240584 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4756 876 100 219 0 4534 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 19024

[startup+35.1011 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1855184/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=19024 CPUtime=35.09
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 1392 0 0 0 3508 1 0 0 25 0 1 0 1145036718 19480576 876 1992294400 4194304 5092341 548682068832 18446744073709551615 4240667 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4756 876 100 219 0 4534 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 19024

[startup+36.7012 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1855184/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=19024 CPUtime=36.68
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 1392 0 0 0 3667 1 0 0 25 0 1 0 1145036718 19480576 876 1992294400 4194304 5092341 548682068832 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4756 876 100 219 0 4534 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 19024

[startup+37.5013 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1855184/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=19024 CPUtime=37.48
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 1392 0 0 0 3747 1 0 0 25 0 1 0 1145036718 19480576 876 1992294400 4194304 5092341 548682068832 18446744073709551615 4249472 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4756 876 100 219 0 4534 0
Current children cumulated CPU time (s) 37.48
Current children cumulated vsize (KiB) 19024

[startup+37.9014 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1855184/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=19024 CPUtime=37.88
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 1392 0 0 0 3787 1 0 0 25 0 1 0 1145036718 19480576 876 1992294400 4194304 5092341 548682068832 18446744073709551615 4252253 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4756 876 100 219 0 4534 0
Current children cumulated CPU time (s) 37.88
Current children cumulated vsize (KiB) 19024

[startup+38.3014 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1855184/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=19024 CPUtime=38.28
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 1392 0 0 0 3827 1 0 0 25 0 1 0 1145036718 19480576 876 1992294400 4194304 5092341 548682068832 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4756 876 100 219 0 4534 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 19024

[startup+38.4014 s]
/proc/loadavg: 0.99 0.97 1.00 2/74 1417
/proc/meminfo: memFree=1855184/2055920 swapFree=4175504/4192956
[pid=1416] ppid=1414 vsize=19024 CPUtime=38.39
/proc/1416/stat : 1416 (minisat) R 1414 1416 1009 0 -1 4194304 1392 0 0 0 3838 1 0 0 25 0 1 0 1145036718 19480576 876 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/1416/statm: 4756 876 100 219 0 4534 0
Current children cumulated CPU time (s) 38.39
Current children cumulated vsize (KiB) 19024

Child status: 20
Real time (s): 38.4221
CPU time (s): 38.4102
CPU user time (s): 38.3952
CPU system time (s): 0.014997
CPU usage (%): 99.9689
Max. virtual memory (cumulated for all children) (KiB): 19024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 38.3952
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1402
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= 2
involuntary context switches= 75

runsolver used 0.046992 second user time and 0.105983 second system time

The end

Launcher Data 

Begin job on node77 at 2009-04-03 03:55:22
IDJOB=1554125
IDBENCH=70774
IDSOLVER=546
FILE ID=node77/1554125-1238723722
PBS_JOBID= 9085301
Free space on /tmp= 66544 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitsrotate/countbitsrotate016.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1554125-1238723722/watcher-1554125-1238723722 -o /tmp/evaluation-result-1554125-1238723722/solver-1554125-1238723722 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1554125-1238723722.cnf

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

MD5SUM BENCH= cb3e934c498918abbc8bcf7f964c0d21
RANDOM SEED=2084208652

node77.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.230
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.230
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1859128 kB
Buffers:         33320 kB
Cached:          83412 kB
SwapCached:       9068 kB
Active:           9356 kB
Inactive:       118004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1859128 kB
SwapTotal:     4192956 kB
SwapFree:      4175504 kB
Dirty:            1012 kB
Writeback:           0 kB
Mapped:          17528 kB
Slab:            54508 kB
Committed_AS:  2950152 kB
PageTables:       1984 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66540 MiB
End job on node77 at 2009-04-03 03:56:01