Trace number 268149

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
VALCSP 3.1? (MO) 403.874 407.216

General information on the benchmark

Nameknights/
knights-50-25.xml
MD5SUM351eb8249ace9020252e64f45fb53259
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark84.8321
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables25
Number of constraints300
Maximum constraint arity2
Maximum domain size2500
Number of constraints which are defined in extension0
Number of constraints which are defined in intension300
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node19/watcher-268149-1168978042 -o ROOT/results/node19/solver-268149-1168978042 -C 1800 -M 900 /tmp/evaluation/268149-1168978042/VALCSP /tmp/evaluation/268149-1168978042/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0.104787 s]
/proc/loadavg: 0.78 0.42 0.16 5/86 1803
/proc/meminfo: memFree=1758272/2055920 swapFree=4171264/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 0.78 0.42 0.16 5/86 1803
/proc/meminfo: memFree=1758272/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=27060 CPUtime=0.09
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 6524 0 0 0 7 2 0 0 20 0 1 0 246199867 27709440 6502 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 6765 6502 64 8 0 6437 0

[startup+0.512857 s]
/proc/loadavg: 0.78 0.42 0.16 5/86 1803
/proc/meminfo: memFree=1758272/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=27060 CPUtime=0.49
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 6524 0 0 0 47 2 0 0 24 0 1 0 246199867 27709440 6502 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 27060

[startup+1.33301 s]
/proc/loadavg: 0.78 0.42 0.16 3/86 1803
/proc/meminfo: memFree=1732480/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=27060 CPUtime=1.3
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 6524 0 0 0 128 2 0 0 25 0 1 0 246199867 27709440 6502 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 27060

[startup+2.97032 s]
/proc/loadavg: 0.78 0.42 0.16 3/86 1803
/proc/meminfo: memFree=1732480/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=27060 CPUtime=2.93
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 6524 0 0 0 291 2 0 0 25 0 1 0 246199867 27709440 6502 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 27060

[startup+6.25194 s]
/proc/loadavg: 0.88 0.44 0.17 3/86 1803
/proc/meminfo: memFree=1732480/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=27060 CPUtime=6.18
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 6524 0 0 0 616 2 0 0 25 0 1 0 246199867 27709440 6502 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 27060

[startup+12.7082 s]
/proc/loadavg: 0.97 0.47 0.18 3/86 1803
/proc/meminfo: memFree=1708096/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=51552 CPUtime=12.59
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 12635 0 0 0 1254 5 0 0 25 0 1 0 246199867 52789248 12613 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 12888 12613 64 8 0 12560 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 51552

[startup+25.5206 s]
/proc/loadavg: 1.13 0.52 0.20 3/86 1803
/proc/meminfo: memFree=1683584/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=76048 CPUtime=25.29
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 18746 0 0 0 2521 8 0 0 25 0 1 0 246199867 77873152 18724 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 19012 18724 64 8 0 18684 0
Current children cumulated CPU time (s) 25.29
Current children cumulated vsize (KiB) 76048

[startup+51.1414 s]
/proc/loadavg: 1.47 0.66 0.26 3/86 1803
/proc/meminfo: memFree=1634624/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=124896 CPUtime=50.71
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 30969 0 0 0 5059 12 0 0 25 0 1 0 246199867 127893504 30947 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 31224 30947 64 8 0 30896 0
Current children cumulated CPU time (s) 50.71
Current children cumulated vsize (KiB) 124896

[startup+102.382 s]
/proc/loadavg: 1.77 0.86 0.35 3/86 1803
/proc/meminfo: memFree=1512192/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=247088 CPUtime=101.54
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 61524 0 0 0 10130 24 0 0 25 0 1 0 246199867 253018112 61502 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 61772 61502 64 8 0 61444 0
Current children cumulated CPU time (s) 101.54
Current children cumulated vsize (KiB) 247088

[startup+162.442 s]
/proc/loadavg: 1.91 1.07 0.45 3/86 1803
/proc/meminfo: memFree=1389824/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=369276 CPUtime=161.09
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 92079 0 0 0 16073 36 0 0 25 0 1 0 246199867 378138624 92057 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 92319 92057 64 8 0 91991 0
Current children cumulated CPU time (s) 161.09
Current children cumulated vsize (KiB) 369276

[startup+222.495 s]
/proc/loadavg: 1.97 1.23 0.54 3/86 1803
/proc/meminfo: memFree=1243008/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=515960 CPUtime=220.65
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 128745 0 0 0 22014 51 0 0 25 0 1 0 246199867 528343040 128723 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 128990 128723 64 8 0 128662 0
Current children cumulated CPU time (s) 220.65
Current children cumulated vsize (KiB) 515960

[startup+282.548 s]
/proc/loadavg: 1.99 1.37 0.63 3/86 1803
/proc/meminfo: memFree=1120576/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=638152 CPUtime=280.23
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 159300 0 0 0 27959 64 0 0 25 0 1 0 246199867 653467648 159278 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 159538 159278 64 8 0 159210 0
Current children cumulated CPU time (s) 280.23
Current children cumulated vsize (KiB) 638152

[startup+342.604 s]
/proc/loadavg: 1.99 1.48 0.71 3/86 1803
/proc/meminfo: memFree=973632/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=784836 CPUtime=339.78
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 195966 0 0 0 33900 78 0 0 25 0 1 0 246199867 803672064 195944 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 196209 195944 64 8 0 195881 0
Current children cumulated CPU time (s) 339.78
Current children cumulated vsize (KiB) 784836

[startup+402.666 s]
/proc/loadavg: 1.99 1.57 0.79 3/86 1803
/proc/meminfo: memFree=851136/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=907028 CPUtime=399.35
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 226521 0 0 0 39845 90 0 0 25 0 1 0 246199867 928796672 226499 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 226757 226499 64 8 0 226429 0
Current children cumulated CPU time (s) 399.35
Current children cumulated vsize (KiB) 907028



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+407.073 s]
/proc/loadavg: 1.99 1.58 0.80 3/86 1803
/proc/meminfo: memFree=826624/2055920 swapFree=4171264/4192956
[pid=1802] ppid=1800 vsize=931520 CPUtime=403.73
/proc/1802/stat : 1802 (VALCSP) R 1800 1802 1292 0 -1 4194304 232632 0 0 0 40280 93 0 0 25 0 1 0 246199867 953876480 232610 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/1802/statm: 232880 232610 64 8 0 232552 0
Current children cumulated CPU time (s) 403.73
Current children cumulated vsize (KiB) 931520

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 407.216
CPU time (s): 403.874
CPU user time (s): 402.805
CPU system time (s): 1.06884
CPU usage (%): 99.1791
Max. virtual memory (cumulated for all children) (KiB): 931520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 402.805
system time used= 1.06884
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 232632
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= 5
involuntary context switches= 18234

runsolver used 0.378942 s user time and 1.07984 s system time

The end



Launcher Data (download as text)




Begin job on node19 on Tue Jan 16 20:07:25 UTC 2007


IDJOB= 268149
IDBENCH= 3590
IDSOLVER= 90
FILE ID= node19/268149-1168978042

PBS_JOBID= 3565913

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/knights/knights-50-25.xml
COMMAND LINE= /tmp/evaluation/268149-1168978042/VALCSP /tmp/evaluation/268149-1168978042/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-268149-1168978042 -o ROOT/results/node19/solver-268149-1168978042 -C 1800 -M 900  /tmp/evaluation/268149-1168978042/VALCSP /tmp/evaluation/268149-1168978042/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  351eb8249ace9020252e64f45fb53259

RANDOM SEED= 60873224

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.260
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		: 3000.260
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:       1758936 kB
Buffers:         42216 kB
Cached:         139220 kB
SwapCached:       9984 kB
Active:         183136 kB
Inactive:        43032 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1758936 kB
SwapTotal:     4192956 kB
SwapFree:      4171264 kB
Dirty:             264 kB
Writeback:           0 kB
Mapped:          54600 kB
Slab:            55544 kB
Committed_AS:  6563612 kB
PageTables:       2344 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= 66564 MiB



End job on node19 on Tue Jan 16 20:14:20 UTC 2007