Trace number 336181

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
KCNFS 2006? (exit code) 4.56331 4.56493

General information on the benchmark

Namecrafted/Hard/contest05/others/
sgp_9-8-8.sat05-2674.reshuffled-07.cnf
MD5SUMf935103d71f7bb9e8d8051793d20ec02
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables186624
Number of clauses3086912
Sum of the clauses size6851936
Maximum clause length64
Minimum clause length1
Number of clauses of size 1128
Number of clauses of size 22506464
Number of clauses of size 3574560
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 55760

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/336181-1173641977/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
4.50/4.52	c this formula cannot been solved by kcnfs
4.50/4.52

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node33/watcher-336181-1173641977 -o ROOT/results/node33/solver-336181-1173641977 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/336181-1173641977/kcnfs-2006 /tmp/evaluation/336181-1173641977/instance-336181-1173641977.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: 0.99 0.98 1.00 3/64 28778
/proc/meminfo: memFree=1819256/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=180908 CPUtime=0
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 118 0 0 0 0 0 0 0 18 0 1 0 90154985 185249792 103 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 45227 103 47 158 0 45067 0

[startup+0.0713961 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 28778
/proc/meminfo: memFree=1819256/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=184340 CPUtime=0.06
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 976 0 0 0 6 0 0 0 18 0 1 0 90154985 188764160 961 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 46085 962 47 158 0 45925 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 184340

[startup+0.101401 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 28778
/proc/meminfo: memFree=1819256/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=185924 CPUtime=0.09
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 1363 0 0 0 9 0 0 0 18 0 1 0 90154985 190386176 1348 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 46481 1348 47 158 0 46321 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 185924

[startup+0.301425 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 28778
/proc/meminfo: memFree=1819256/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=196220 CPUtime=0.29
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 3941 0 0 0 27 2 0 0 19 0 1 0 90154985 200929280 3926 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 49055 3926 47 158 0 48895 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196220

[startup+0.701475 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 28778
/proc/meminfo: memFree=1819256/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=216680 CPUtime=0.69
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 9076 0 0 0 64 5 0 0 22 0 1 0 90154985 221880320 9061 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 54170 9061 47 158 0 54010 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 216680

[startup+1.50157 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 28779
/proc/meminfo: memFree=1767920/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=257864 CPUtime=1.49
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 19359 0 0 0 140 9 0 0 25 0 1 0 90154985 264052736 19344 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 64466 19345 47 158 0 64306 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 257864

[startup+3.10177 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 28779
/proc/meminfo: memFree=1711536/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=339968 CPUtime=3.1
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 39870 0 0 0 290 20 0 0 25 0 1 0 90154985 348127232 39855 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 84992 39856 47 158 0 84832 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 339968

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

[startup+3.90187 s]
/proc/loadavg: 1.07 1.00 1.01 2/65 28779
/proc/meminfo: memFree=1655536/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=381020 CPUtime=3.89
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 50162 0 0 0 364 25 0 0 25 0 1 0 90154985 390164480 50147 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 95255 50148 47 158 0 95095 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 381020

[startup+4.30292 s]
/proc/loadavg: 1.07 1.00 1.01 2/65 28779
/proc/meminfo: memFree=1598832/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=401876 CPUtime=4.3
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 55373 0 0 0 402 28 0 0 25 0 1 0 90154985 411521024 55358 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 100469 55358 47 158 0 100309 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 401876

[startup+4.50295 s]
/proc/loadavg: 1.07 1.00 1.01 2/65 28779
/proc/meminfo: memFree=1598832/2055920 swapFree=4177820/4192956
[pid=28778] ppid=28776 vsize=412040 CPUtime=4.5
/proc/28778/stat : 28778 (kcnfs-2006) R 28776 28778 28403 0 -1 4194304 57887 0 0 0 420 30 0 0 25 0 1 0 90154985 421928960 57872 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28778/statm: 103010 57872 47 158 0 102850 0
Current children cumulated CPU time (s) 4.5
Current children cumulated vsize (KiB) 412040

Child status: 1
Real time (s): 4.56493
CPU time (s): 4.56331
CPU user time (s): 4.22536
CPU system time (s): 0.337948
CPU usage (%): 99.9645
Max. virtual memory (cumulated for all children) (KiB): 412040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.22536
system time used= 0.337948
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 58213
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= 10

runsolver used 0.007998 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node33 on Sun Mar 11 19:39:46 UTC 2007

IDJOB= 336181
IDBENCH= 24669
IDSOLVER= 113
FILE ID= node33/336181-1173641977

PBS_JOBID= 4101335

Free space on /tmp= 66510 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest05/others/sgp_9-8-8.sat05-2674.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/336181-1173641977/kcnfs-2006 /tmp/evaluation/336181-1173641977/instance-336181-1173641977.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-336181-1173641977 -o ROOT/results/node33/solver-336181-1173641977 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/336181-1173641977/kcnfs-2006 /tmp/evaluation/336181-1173641977/instance-336181-1173641977.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  f935103d71f7bb9e8d8051793d20ec02

RANDOM SEED= 589699866

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node33.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		: 3000.231
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		: 3000.231
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:       1819664 kB
Buffers:         15144 kB
Cached:         175864 kB
SwapCached:       9252 kB
Active:          87448 kB
Inactive:       119516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1819664 kB
SwapTotal:     4192956 kB
SwapFree:      4177820 kB
Dirty:           55492 kB
Writeback:           0 kB
Mapped:          15360 kB
Slab:            15296 kB
Committed_AS:    98404 kB
PageTables:       1408 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= 66510 MiB

End job on node33 on Sun Mar 11 19:39:50 UTC 2007