Trace number 1724483

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 63.7123 63.7365

General information on the benchmark

Namemanol-pipe-c6nidw_i.cnf
MD5SUM15c4413e436aecbd4fcb1d7037e18abf
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark44.8372
Satisfiable
(Un)Satisfiability was proved
Number of variables95863
Number of clauses283363
Sum of the clauses size661179
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2188908
Number of clauses of size 394454
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 |                                                                             |
0.29/0.33	c |  Number of variables:         95863                                         |
0.29/0.33	c |  Number of clauses:          283362                                         |
0.29/0.33	c |  Parse time:                   0.30 s                                       |
1.78/1.80	c |  Simplification time:          1.45 s                                       |
1.78/1.80	c |                                                                             |
1.78/1.80	c ============================[ Search Statistics ]==============================
1.78/1.80	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
1.78/1.80	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
1.78/1.80	c ===============================================================================
1.78/1.84	c |       100 |   20854   128297   537917 |    47042       99     10 |  0.097 % |
1.78/1.89	c |       250 |   20854   128297   537917 |    51746      249     11 |  0.097 % |
1.89/1.96	c |       475 |   20854   128297   537917 |    56921      474     12 |  0.097 % |
1.99/2.05	c |       812 |   20854   128297   537917 |    62613      811     18 |  0.097 % |
2.09/2.12	c |      1318 |   20832   128297   537917 |    68874     1314     20 |  0.120 % |
2.20/2.24	c |      2077 |   20794   126923   532799 |    75761     2065     20 |  0.160 % |
2.39/2.40	c |      3216 |   20792   126923   532799 |    83338     3203     19 |  0.162 % |
2.79/2.85	c |      4924 |   20719   125623   527474 |    91672     4849     19 |  0.238 % |
3.19/3.26	c |      7486 |   20718   125588   527327 |   100839     7410     20 |  0.239 % |
3.69/3.78	c |     11330 |   20706   125463   526857 |   110923    11248     20 |  0.251 % |
4.59/4.69	c |     17096 |   20706   125463   526857 |   122015    17014     20 |  0.251 % |
5.88/5.99	c |     25745 |   20679   125148   525867 |   134216    25655     20 |  0.280 % |
7.80/7.82	c |     38719 |   20674   125091   525613 |   147638    38626     19 |  0.285 % |
10.68/10.77	c |     58180 |   20381   122572   514443 |   162402    58066     21 |  0.590 % |
16.28/16.32	c |     87372 |   19924   122337   513742 |   178642    87245     20 |  1.067 % |
24.98/25.08	c |    131161 |   19849   117280   488928 |   196507   115749     19 |  1.145 % |
43.87/43.98	c |    196845 |   19708   115673   482269 |   216157   180891     22 |  1.292 % |
63.67/63.72	c ===============================================================================
63.67/63.72	c restarts              : 609
63.67/63.72	c conflicts             : 258444         (4066 /sec)
63.67/63.72	c decisions             : 1276717        (20088 /sec)
63.67/63.72	c propagations          : 70310097       (1106282 /sec)
63.67/63.72	c conflict literals     : 5908025        (28.89 % deleted)
63.67/63.72	c Memory used           : 75.21 MB
63.67/63.72	c CPU time              : 63.5553 s
63.67/63.72	c 
63.67/63.72	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-1724483-1240696652/watcher-1724483-1240696652 -o /tmp/evaluation-result-1724483-1240696652/solver-1724483-1240696652 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1724483-1240696652.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: 0.92 1.00 0.99 2/65 20507
/proc/meminfo: memFree=1960376/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=7612 CPUtime=0
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 428 0 0 0 0 0 0 0 20 0 1 0 97695042 7794688 412 1992294400 4194304 5092341 548682068832 18446744073709551615 4236589 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 1903 413 63 219 0 1681 0

[startup+0.103055 s]
/proc/loadavg: 0.92 1.00 0.99 2/65 20507
/proc/meminfo: memFree=1960376/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=15956 CPUtime=0.09
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 2761 0 0 0 9 0 0 0 20 0 1 0 97695042 16338944 2635 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 3989 2635 63 219 0 3767 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15956

[startup+0.201066 s]
/proc/loadavg: 0.92 1.00 0.99 2/65 20507
/proc/meminfo: memFree=1960376/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=22440 CPUtime=0.19
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 5060 0 0 0 18 1 0 0 21 0 1 0 97695042 22978560 4695 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 5610 4695 63 219 0 5388 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 22440

[startup+0.301076 s]
/proc/loadavg: 0.92 1.00 0.99 2/65 20507
/proc/meminfo: memFree=1960376/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=29856 CPUtime=0.29
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 7335 0 0 0 27 2 0 0 22 0 1 0 97695042 30572544 6748 1992294400 4194304 5092341 548682068832 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 7464 6750 63 219 0 7242 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 29856

[startup+0.701119 s]
/proc/loadavg: 0.92 1.00 0.99 2/65 20507
/proc/meminfo: memFree=1960376/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=40892 CPUtime=0.69
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 9689 0 0 0 66 3 0 0 25 0 1 0 97695042 41873408 9073 1992294400 4194304 5092341 548682068832 18446744073709551615 4223967 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 10223 9073 87 219 0 10001 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 40892

[startup+1.5012 s]
/proc/loadavg: 0.92 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1919920/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=48240 CPUtime=1.49
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 11533 0 0 0 145 4 0 0 25 0 1 0 97695042 49397760 10917 1992294400 4194304 5092341 548682068832 18446744073709551615 4223406 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 12060 10917 87 219 0 11838 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 48240

[startup+3.10138 s]
/proc/loadavg: 0.92 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1928432/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=38228 CPUtime=3.09
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 12434 0 0 0 304 5 0 0 25 0 1 0 97695042 39145472 8096 1992294400 4194304 5092341 548682068832 18446744073709551615 4240957 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 9557 8096 103 219 0 9335 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 38228

[startup+6.30172 s]
/proc/loadavg: 0.93 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1926640/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=38228 CPUtime=6.28
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 12885 0 0 0 623 5 0 0 25 0 1 0 97695042 39145472 8547 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 9557 8547 103 219 0 9335 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 38228

[startup+12.7014 s]
/proc/loadavg: 0.93 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1922608/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=44716 CPUtime=12.69
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 13844 0 0 0 1262 7 0 0 25 0 1 0 97695042 45789184 9506 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 11179 9506 103 219 0 10957 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 44716

[startup+25.5018 s]
/proc/loadavg: 0.95 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1916464/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=50556 CPUtime=25.48
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 15329 0 0 0 2539 9 0 0 25 0 1 0 97695042 51769344 10991 1992294400 4194304 5092341 548682068832 18446744073709551615 4249837 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 12639 10991 103 219 0 12417 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 50556

[startup+51.1015 s]
/proc/loadavg: 0.96 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1904176/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=62268 CPUtime=51.07
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 18474 0 0 0 5095 12 0 0 25 0 1 0 97695042 63762432 14136 1992294400 4194304 5092341 548682068832 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 15567 14136 103 219 0 15345 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 62268

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

[startup+51.2015 s]
/proc/loadavg: 0.96 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1904176/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=62268 CPUtime=51.17
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 18486 0 0 0 5105 12 0 0 25 0 1 0 97695042 63762432 14148 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 15567 14148 103 219 0 15345 0
Current children cumulated CPU time (s) 51.17
Current children cumulated vsize (KiB) 62268

[startup+57.6012 s]
/proc/loadavg: 0.97 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1900528/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=76520 CPUtime=57.56
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 19330 0 0 0 5743 13 0 0 25 0 1 0 97695042 78356480 14992 1992294400 4194304 5092341 548682068832 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 19130 14992 103 219 0 18908 0
Current children cumulated CPU time (s) 57.56
Current children cumulated vsize (KiB) 76520

[startup+60.8015 s]
/proc/loadavg: 0.97 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1899440/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=76720 CPUtime=60.77
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 19585 0 0 0 6063 14 0 0 25 0 1 0 97695042 78561280 15247 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 19180 15247 103 219 0 18958 0
Current children cumulated CPU time (s) 60.77
Current children cumulated vsize (KiB) 76720

[startup+62.4017 s]
/proc/loadavg: 0.97 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1899120/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=76852 CPUtime=62.37
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 19699 0 0 0 6223 14 0 0 25 0 1 0 97695042 78696448 15361 1992294400 4194304 5092341 548682068832 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 19213 15361 103 219 0 18991 0
Current children cumulated CPU time (s) 62.37
Current children cumulated vsize (KiB) 76852

[startup+63.2018 s]
/proc/loadavg: 0.97 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1898864/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=76852 CPUtime=63.17
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 19748 0 0 0 6303 14 0 0 25 0 1 0 97695042 78696448 15410 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 19213 15410 103 219 0 18991 0
Current children cumulated CPU time (s) 63.17
Current children cumulated vsize (KiB) 76852

[startup+63.6018 s]
/proc/loadavg: 0.97 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1898864/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=77008 CPUtime=63.57
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 19788 0 0 0 6343 14 0 0 25 0 1 0 97695042 78856192 15450 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 19252 15450 103 219 0 19030 0
Current children cumulated CPU time (s) 63.57
Current children cumulated vsize (KiB) 77008

[startup+63.7018 s]
/proc/loadavg: 0.97 1.00 0.99 2/66 20508
/proc/meminfo: memFree=1898864/2055920 swapFree=4180744/4192956
[pid=20507] ppid=20505 vsize=77008 CPUtime=63.67
/proc/20507/stat : 20507 (minisat) R 20505 20507 20410 0 -1 4194304 19793 0 0 0 6353 14 0 0 25 0 1 0 97695042 78856192 15455 1992294400 4194304 5092341 548682068832 18446744073709551615 4241086 0 0 4096 3 0 0 0 17 1 0 0
/proc/20507/statm: 19252 15455 103 219 0 19030 0
Current children cumulated CPU time (s) 63.67
Current children cumulated vsize (KiB) 77008

Child status: 20
Real time (s): 63.7365
CPU time (s): 63.7123
CPU user time (s): 63.5553
CPU system time (s): 0.156976
CPU usage (%): 99.9621
Max. virtual memory (cumulated for all children) (KiB): 77008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 63.5553
system time used= 0.156976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19803
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= 202

runsolver used 0.071989 second user time and 0.173973 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-25 23:57:32
IDJOB=1724483
IDBENCH=71780
IDSOLVER=546
FILE ID=node81/1724483-1240696652
PBS_JOBID= 9186787
Free space on /tmp= 126388 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE06/manol-pipe-c6nidw_i.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1724483-1240696652/watcher-1724483-1240696652 -o /tmp/evaluation-result-1724483-1240696652/solver-1724483-1240696652 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1724483-1240696652.cnf

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

MD5SUM BENCH= 15c4413e436aecbd4fcb1d7037e18abf
RANDOM SEED=1876778672

node81.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		: 3000.234
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		: 3000.234
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:       1960856 kB
Buffers:          6404 kB
Cached:          38084 kB
SwapCached:       5628 kB
Active:          31432 kB
Inactive:        21464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1960856 kB
SwapTotal:     4192956 kB
SwapFree:      4180744 kB
Dirty:            5568 kB
Writeback:           0 kB
Mapped:          13540 kB
Slab:            27920 kB
Committed_AS:   353272 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126384 MiB
End job on node81 at 2009-04-25 23:58:36