Trace number 1725501

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 15.7116 15.7179

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
MD5SUM35f2aba974a0579245ba9b669f0484ae
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.063989
Satisfiable
(Un)Satisfiability was proved
Number of variables6480
Number of clauses12722
Sum of the clauses size50722
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 280
Number of clauses of size 30
Number of clauses of size 412640
Number of clauses of size 50
Number of clauses of size over 50

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
15.69/15.71	c 15.62 seconds
15.69/15.71	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-1725501-1240705168/watcher-1725501-1240705168 -o /tmp/evaluation-result-1725501-1240705168/solver-1725501-1240705168 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/kw HOME/instance-1725501-1240705168.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 0.95 0.97 3/64 26950
/proc/meminfo: memFree=1786232/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=4816 CPUtime=0
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 805 0 0 0 0 0 0 0 18 0 1 0 98551167 4931584 789 1992294400 4194304 6412682 548682068864 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 1204 795 208 541 0 654 0

[startup+0.0239211 s]
/proc/loadavg: 0.92 0.95 0.97 3/64 26950
/proc/meminfo: memFree=1786232/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=6488 CPUtime=0.01
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 1221 0 0 0 1 0 0 0 18 0 1 0 98551167 6643712 1205 1992294400 4194304 6412682 548682068864 18446744073709551615 4369601 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 1622 1205 219 541 0 1072 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 6488

[startup+0.101936 s]
/proc/loadavg: 0.92 0.95 0.97 3/64 26950
/proc/meminfo: memFree=1786232/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=8188 CPUtime=0.09
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 1721 0 0 0 9 0 0 0 18 0 1 0 98551167 8384512 1667 1992294400 4194304 6412682 548682068864 18446744073709551615 5554256 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 2047 1667 247 541 0 1497 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8188

[startup+0.301975 s]
/proc/loadavg: 0.92 0.95 0.97 3/64 26950
/proc/meminfo: memFree=1786232/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=7984 CPUtime=0.29
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 1738 0 0 0 25 4 0 0 19 0 1 0 98551167 8175616 1633 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 1996 1633 254 541 0 1446 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7984

[startup+0.701054 s]
/proc/loadavg: 0.92 0.95 0.97 3/64 26950
/proc/meminfo: memFree=1786232/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=9648 CPUtime=0.69
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 2174 0 0 0 60 9 0 0 22 0 1 0 98551167 9879552 2069 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 2412 2069 254 541 0 1862 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9648

[startup+1.50121 s]
/proc/loadavg: 0.92 0.95 0.97 2/65 26951
/proc/meminfo: memFree=1778160/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=11912 CPUtime=1.49
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 2760 0 0 0 134 15 0 0 25 0 1 0 98551167 12197888 2604 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 2978 2604 257 541 0 2428 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11912

[startup+3.10152 s]
/proc/loadavg: 0.92 0.95 0.97 2/65 26951
/proc/meminfo: memFree=1774960/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=16952 CPUtime=3.09
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 4129 0 0 0 279 30 0 0 25 0 1 0 98551167 17358848 3768 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 4238 3768 257 541 0 3688 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16952

[startup+6.30115 s]
/proc/loadavg: 0.92 0.95 0.97 2/65 26951
/proc/meminfo: memFree=1766392/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=25056 CPUtime=6.28
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 6488 0 0 0 570 58 0 0 25 0 1 0 98551167 25657344 5818 1992294400 4194304 6412682 548682068864 18446744073709551615 4395697 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 6264 5818 257 541 0 5714 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 25056

[startup+12.7014 s]
/proc/loadavg: 0.93 0.95 0.97 2/65 26951
/proc/meminfo: memFree=1750200/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=41828 CPUtime=12.69
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 11116 0 0 0 1170 99 0 0 25 0 1 0 98551167 42831872 9767 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 10457 9767 257 541 0 9907 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 41828

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

[startup+14.3057 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 26951
/proc/meminfo: memFree=1745144/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=45044 CPUtime=14.29
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 12080 0 0 0 1324 105 0 0 25 0 1 0 98551167 46125056 10493 1992294400 4194304 6412682 548682068864 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 11261 10493 257 541 0 10711 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 45044

[startup+15.1019 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 26951
/proc/meminfo: memFree=1745144/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=49804 CPUtime=15.09
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 13133 0 0 0 1402 107 0 0 25 0 1 0 98551167 50999296 11546 1992294400 4194304 6412682 548682068864 18446744073709551615 4296616 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 12451 11546 257 541 0 11901 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 49804

[startup+15.502 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 26951
/proc/meminfo: memFree=1741560/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=49220 CPUtime=15.49
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 13259 0 0 0 1441 108 0 0 25 0 1 0 98551167 50401280 11397 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 12305 11397 257 541 0 11755 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 49220

[startup+15.702 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 26951
/proc/meminfo: memFree=1741560/2055924 swapFree=4180784/4192956
[pid=26950] ppid=26948 vsize=49660 CPUtime=15.69
/proc/26950/stat : 26950 (kw) R 26948 26950 26913 0 -1 0 13348 0 0 0 1461 108 0 0 25 0 1 0 98551167 50851840 11486 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/26950/statm: 12415 11486 257 541 0 11865 0
Current children cumulated CPU time (s) 15.69
Current children cumulated vsize (KiB) 49660

Child status: 20
Real time (s): 15.7179
CPU time (s): 15.7116
CPU user time (s): 14.6188
CPU system time (s): 1.09283
CPU usage (%): 99.9603
Max. virtual memory (cumulated for all children) (KiB): 49804

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.6188
system time used= 1.09283
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13356
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= 24

runsolver used 0.013997 second user time and 0.040993 second system time

The end

Launcher Data 

Begin job on node6 at 2009-04-26 02:19:28
IDJOB=1725501
IDBENCH=24589
IDSOLVER=501
FILE ID=node6/1725501-1240705168
PBS_JOBID= 9186809
Free space on /tmp= 66336 MiB

SOLVER NAME= kw 2009-03-20
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
COMMAND LINE= HOME/kw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725501-1240705168/watcher-1725501-1240705168 -o /tmp/evaluation-result-1725501-1240705168/solver-1725501-1240705168 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/kw HOME/instance-1725501-1240705168.cnf

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

MD5SUM BENCH= 35f2aba974a0579245ba9b669f0484ae
RANDOM SEED=11830090

node6.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		: 3000.281
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		: 3000.281
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:      2055924 kB
MemFree:       1786648 kB
Buffers:         33584 kB
Cached:         164800 kB
SwapCached:       5956 kB
Active:          60908 kB
Inactive:       145744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1786648 kB
SwapTotal:     4192956 kB
SwapFree:      4180784 kB
Dirty:            2596 kB
Writeback:           0 kB
Mapped:          13928 kB
Slab:            48604 kB
Committed_AS:   407196 kB
PageTables:       1452 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= 66332 MiB
End job on node6 at 2009-04-26 02:19:44