Trace number 1725395

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
kw 2009-03-20UNSAT 3.52246 3.52363

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00090.sat05-1326.reshuffled-07.cnf
MD5SUMfc73c241ff6e8e1a49a6ff2500eb7905
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.131979
Satisfiable
(Un)Satisfiability was proved
Number of variables322
Number of clauses9322
Sum of the clauses size72335
Maximum clause length11
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 211
Number of clauses of size 379
Number of clauses of size 4136
Number of clauses of size 5421
Number of clauses of size over 58674

Solver Data 

0.00/0.00	c kw (KillerWhale) version 0.6
0.00/0.00	c Copyright 2007-2009 Johan Alfredsson, Oepir
0.00/0.00	c johan@oepir.com
3.49/3.52	c 3.44 seconds
3.49/3.52	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-1725395-1240704458/watcher-1725395-1240704458 -o /tmp/evaluation-result-1725395-1240704458/solver-1725395-1240704458 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/kw HOME/instance-1725395-1240704458.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: 0.85 0.95 1.04 3/64 22428
/proc/meminfo: memFree=1597760/2055920 swapFree=4177552/4192956
[pid=22428] ppid=22426 vsize=2872 CPUtime=0
/proc/22428/stat : 22428 (kw) R 22426 22428 22324 0 -1 0 330 0 0 0 0 0 0 0 18 0 1 0 98474413 2940928 314 1992294400 4194304 6412682 548682068864 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/22428/statm: 718 314 219 541 0 168 0

[startup+0.05269 s]
/proc/loadavg: 0.85 0.95 1.04 3/64 22428
/proc/meminfo: memFree=1597760/2055920 swapFree=4177552/4192956
[pid=22428] ppid=22426 vsize=3404 CPUtime=0.04
/proc/22428/stat : 22428 (kw) R 22426 22428 22324 0 -1 0 493 0 0 0 4 0 0 0 18 0 1 0 98474413 3485696 477 1992294400 4194304 6412682 548682068864 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/22428/statm: 851 477 221 541 0 301 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3404

[startup+0.101699 s]
/proc/loadavg: 0.85 0.95 1.04 3/64 22428
/proc/meminfo: memFree=1597760/2055920 swapFree=4177552/4192956
[pid=22428] ppid=22426 vsize=4724 CPUtime=0.09
/proc/22428/stat : 22428 (kw) R 22426 22428 22324 0 -1 0 822 0 0 0 9 0 0 0 18 0 1 0 98474413 4837376 806 1992294400 4194304 6412682 548682068864 18446744073709551615 4261022 0 0 4096 0 0 0 0 17 1 0 0
/proc/22428/statm: 1181 806 239 541 0 631 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4724

[startup+0.301737 s]
/proc/loadavg: 0.85 0.95 1.04 3/64 22428
/proc/meminfo: memFree=1597760/2055920 swapFree=4177552/4192956
[pid=22428] ppid=22426 vsize=5964 CPUtime=0.29
/proc/22428/stat : 22428 (kw) R 22426 22428 22324 0 -1 0 1132 0 0 0 29 0 0 0 20 0 1 0 98474413 6107136 1116 1992294400 4194304 6412682 548682068864 18446744073709551615 4508875 0 0 4096 0 0 0 0 17 1 0 0
/proc/22428/statm: 1491 1116 247 541 0 941 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5964

[startup+0.701813 s]
/proc/loadavg: 0.85 0.95 1.04 3/64 22428
/proc/meminfo: memFree=1597760/2055920 swapFree=4177552/4192956
[pid=22428] ppid=22426 vsize=6676 CPUtime=0.69
/proc/22428/stat : 22428 (kw) R 22426 22428 22324 0 -1 0 1262 0 0 0 69 0 0 0 23 0 1 0 98474413 6836224 1246 1992294400 4194304 6412682 548682068864 18446744073709551615 4564657 0 0 4096 0 0 0 0 17 1 0 0
/proc/22428/statm: 1669 1246 247 541 0 1119 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6676

[startup+1.50196 s]
/proc/loadavg: 0.85 0.95 1.04 2/65 22429
/proc/meminfo: memFree=1593400/2055920 swapFree=4177552/4192956
[pid=22428] ppid=22426 vsize=8792 CPUtime=1.49
/proc/22428/stat : 22428 (kw) R 22426 22428 22324 0 -1 0 1812 0 0 0 147 2 0 0 25 0 1 0 98474413 9003008 1775 1992294400 4194304 6412682 548682068864 18446744073709551615 4289353 0 0 4096 0 0 0 0 17 1 0 0
/proc/22428/statm: 2198 1775 257 541 0 1648 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8792

[startup+3.10127 s]
/proc/loadavg: 0.85 0.95 1.04 2/65 22429
/proc/meminfo: memFree=1590328/2055920 swapFree=4177552/4192956
[pid=22428] ppid=22426 vsize=11164 CPUtime=3.09
/proc/22428/stat : 22428 (kw) R 22426 22428 22324 0 -1 0 2426 0 0 0 302 7 0 0 25 0 1 0 98474413 11431936 2232 1992294400 4194304 6412682 548682068864 18446744073709551615 4286801 0 0 4096 0 0 0 0 17 1 0 0
/proc/22428/statm: 2791 2232 257 541 0 2241 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11164

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

[startup+3.50134 s]
/proc/loadavg: 0.86 0.95 1.04 2/65 22429
/proc/meminfo: memFree=1589432/2055920 swapFree=4177552/4192956
[pid=22428] ppid=22426 vsize=11296 CPUtime=3.49
/proc/22428/stat : 22428 (kw) R 22426 22428 22324 0 -1 0 2570 0 0 0 341 8 0 0 25 0 1 0 98474413 11567104 2307 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/22428/statm: 2824 2307 257 541 0 2274 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 11296

Child status: 20
Real time (s): 3.52363
CPU time (s): 3.52246
CPU user time (s): 3.43848
CPU system time (s): 0.083987
CPU usage (%): 99.9668
Max. virtual memory (cumulated for all children) (KiB): 11572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.43848
system time used= 0.083987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2580
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= 8

runsolver used 0.003999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node37 at 2009-04-26 02:07:38
IDJOB=1725395
IDBENCH=24582
IDSOLVER=501
FILE ID=node37/1725395-1240704458
PBS_JOBID= 9186803
Free space on /tmp= 66300 MiB

SOLVER NAME= kw 2009-03-20
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00090.sat05-1326.reshuffled-07.cnf
COMMAND LINE= HOME/kw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725395-1240704458/watcher-1725395-1240704458 -o /tmp/evaluation-result-1725395-1240704458/solver-1725395-1240704458 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/kw HOME/instance-1725395-1240704458.cnf

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

MD5SUM BENCH= fc73c241ff6e8e1a49a6ff2500eb7905
RANDOM SEED=937616399

node37.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		: 3000.259
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		: 3000.259
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:       1598176 kB
Buffers:         68616 kB
Cached:         326112 kB
SwapCached:      10280 kB
Active:         167304 kB
Inactive:       239916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1598176 kB
SwapTotal:     4192956 kB
SwapFree:      4177552 kB
Dirty:            2760 kB
Writeback:           0 kB
Mapped:          13536 kB
Slab:            36648 kB
Committed_AS:   444372 kB
PageTables:       1372 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= 66300 MiB
End job on node37 at 2009-04-26 02:07:42