Trace number 421693

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, and are wall clock time (not CPU 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 SAT 2007SAT 3.73543 3.7386

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
MD5SUM0a1b9434c65125233161905ac395e7f3
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.34864
Satisfiable
(Un)Satisfiability was proved
Number of variables2901
Number of clauses18243
Sum of the clauses size130564
Maximum clause length13
Minimum clause length1
Number of clauses of size 128
Number of clauses of size 2401
Number of clauses of size 32345
Number of clauses of size 4462
Number of clauses of size 5637
Number of clauses of size over 514370

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  2901                                                 |
0.00/0.00	c |  Number of clauses:    18243                                                |
0.00/0.04	c |  Parsing time:         0.04         s                                       |
0.09/0.19	c ============================[ Search Statistics ]==============================
0.09/0.19	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.19	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.19	c ===============================================================================
0.09/0.19	c |         0 |    2334    12376    81751 |     4125        0    nan |  0.000 % |
0.09/0.19	c |       100 |    2334    12376    81751 |     4537      100     11 |  1.689 % |
0.09/0.20	c |       251 |    2334    12376    81751 |     4991      251     12 |  1.689 % |
0.19/0.20	c |       476 |    2334    12376    81751 |     5490      476     12 |  1.689 % |
0.19/0.21	c |       813 |    2334    12376    81751 |     6039      813     13 |  1.689 % |
0.19/0.22	c |      1319 |    2334    12376    81751 |     6643     1319     14 |  1.689 % |
0.19/0.24	c |      2079 |    2334    12376    81751 |     7308     2079     14 |  1.689 % |
0.19/0.28	c |      3218 |    2334    12376    81751 |     8039     3218     15 |  1.689 % |
0.29/0.36	c |      4928 |    2334    12376    81751 |     8843     4928     15 |  1.689 % |
0.39/0.49	c |      7491 |    2334    12376    81751 |     9727     7491     17 |  1.689 % |
0.79/0.80	c |     11335 |    2334    12376    81751 |    10700     6372     20 |  1.689 % |
1.29/1.39	c |     17101 |    2334    12376    81751 |    11770     6674     24 |  1.689 % |
2.10/2.18	c |     25750 |    2334    12376    81751 |    12947     9383     24 |  1.689 % |
3.69/3.73	c ===============================================================================
3.69/3.73	c restarts              : 13
3.69/3.73	c conflicts             : 36532          (9809 /sec)
3.69/3.73	c decisions             : 107853         (1.92 % random) (28958 /sec)
3.69/3.73	c propagations          : 1948134        (523069 /sec)
3.69/3.73	c conflict literals     : 947073         (24.09 % deleted)
3.69/3.73	c Memory used           : 5.16 MB
3.69/3.73	c CPU time              : 3.72443 s
3.69/3.73	c 
3.69/3.73	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node68/watcher-421693-1177494365 -o ROOT/results/node68/solver-421693-1177494365 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421693-1177494365/minisat_noassertions /tmp/evaluation/421693-1177494365/instance-421693-1177494365.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): 2400 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: 0.86 0.98 0.92 3/64 15080
/proc/meminfo: memFree=1672800/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=2176 CPUtime=0
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 373 0 0 0 0 0 0 0 18 0 1 0 225426085 2228224 359 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134530907 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 544 359 50 130 0 411 0

[startup+0.0878049 s]
/proc/loadavg: 0.86 0.98 0.92 3/64 15080
/proc/meminfo: memFree=1672800/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=3828 CPUtime=0.08
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 806 0 0 0 8 0 0 0 18 0 1 0 225426085 3919872 792 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529512 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 957 792 62 130 0 824 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3828

[startup+0.101805 s]
/proc/loadavg: 0.86 0.98 0.92 3/64 15080
/proc/meminfo: memFree=1672800/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=3992 CPUtime=0.09
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 834 0 0 0 9 0 0 0 18 0 1 0 225426085 4087808 820 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134525467 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 998 820 62 130 0 865 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3992

[startup+0.301823 s]
/proc/loadavg: 0.86 0.98 0.92 3/64 15080
/proc/meminfo: memFree=1672800/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=4092 CPUtime=0.29
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 911 0 0 0 29 0 0 0 19 0 1 0 225426085 4190208 854 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552759 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 1023 854 66 130 0 890 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4092

[startup+0.701859 s]
/proc/loadavg: 0.86 0.98 0.92 3/64 15080
/proc/meminfo: memFree=1672800/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=4092 CPUtime=0.69
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 922 0 0 0 69 0 0 0 22 0 1 0 225426085 4190208 865 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547181 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 1023 865 66 130 0 890 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4092

[startup+1.50193 s]
/proc/loadavg: 0.86 0.98 0.92 2/65 15081
/proc/meminfo: memFree=1669528/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=4488 CPUtime=1.49
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 1007 0 0 0 149 0 0 0 25 0 1 0 225426085 4595712 950 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552604 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 1122 950 66 130 0 989 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4488

[startup+3.10108 s]
/proc/loadavg: 0.86 0.98 0.92 2/65 15081
/proc/meminfo: memFree=1668952/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=5016 CPUtime=3.09
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 1140 0 0 0 309 0 0 0 25 0 1 0 225426085 5136384 1083 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546842 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 1254 1083 66 130 0 1121 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 5016

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

[startup+3.50112 s]
/proc/loadavg: 0.86 0.98 0.92 2/65 15081
/proc/meminfo: memFree=1668568/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=5148 CPUtime=3.49
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 1158 0 0 0 349 0 0 0 25 0 1 0 225426085 5271552 1101 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546951 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 1287 1101 66 130 0 1154 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 5148

[startup+3.70114 s]
/proc/loadavg: 0.86 0.98 0.92 2/65 15081
/proc/meminfo: memFree=1668568/2055920 swapFree=4183916/4192956
[pid=15080] ppid=15078 vsize=5280 CPUtime=3.69
/proc/15080/stat : 15080 (minisat_noasser) R 15078 15080 14509 0 -1 4194304 1194 0 0 0 369 0 0 0 25 0 1 0 225426085 5406720 1137 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546971 0 0 4096 3 0 0 0 17 1 0 0
/proc/15080/statm: 1320 1137 66 130 0 1187 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 5280

Child status: 10
Real time (s): 3.7386
CPU time (s): 3.73543
CPU user time (s): 3.72543
CPU system time (s): 0.009998
CPU usage (%): 99.9152
Max. virtual memory (cumulated for all children) (KiB): 5280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.72543
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1200
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= 8
involuntary context switches= 14

runsolver used 0.002999 second user time and 0.015997 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Wed Apr 25 09:46:06 UTC 2007

IDJOB= 421693
IDBENCH= 24596
IDSOLVER= 188
FILE ID= node68/421693-1177494365

PBS_JOBID= 4685760

Free space on /tmp= 66442 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/others/QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/421693-1177494365/minisat_noassertions /tmp/evaluation/421693-1177494365/instance-421693-1177494365.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-421693-1177494365 -o ROOT/results/node68/solver-421693-1177494365 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421693-1177494365/minisat_noassertions /tmp/evaluation/421693-1177494365/instance-421693-1177494365.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  0a1b9434c65125233161905ac395e7f3

RANDOM SEED= 144946730

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.216
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		: 3000.216
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1673336 kB
Buffers:         33256 kB
Cached:         211160 kB
SwapCached:       3172 kB
Active:         191224 kB
Inactive:       134608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1673336 kB
SwapTotal:     4192956 kB
SwapFree:      4183916 kB
Dirty:            2308 kB
Writeback:           0 kB
Mapped:          87264 kB
Slab:            42708 kB
Committed_AS:  2955904 kB
PageTables:       1568 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= 66442 MiB

End job on node68 on Wed Apr 25 09:46:10 UTC 2007