Trace number 267812

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) 74.1697 74.218

General information on the benchmark

Namequeens/
queens-200.xml
MD5SUMbc9638d33bc2eb3542de683de70ee98a
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.26565
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables200
Number of constraints19900
Maximum constraint arity2
Maximum domain size200
Number of constraints which are defined in extension0
Number of constraints which are defined in intension19900
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/node6/watcher-267812-1168977722 -o ROOT/results/node6/solver-267812-1168977722 -C 1800 -M 900 /tmp/evaluation/267812-1168977722/VALCSP /tmp/evaluation/267812-1168977722/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

/proc/loadavg: 0.00 0.00 0.00 2/87 7998
/proc/meminfo: memFree=1608432/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=3388 CPUtime=0
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 472 0 0 0 0 0 0 0 18 0 1 0 246167681 3469312 450 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 847 450 65 8 0 519 0

[startup+0.101604 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 7998
/proc/meminfo: memFree=1608432/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=4444 CPUtime=0.09
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 750 0 0 0 9 0 0 0 18 0 1 0 246167681 4550656 728 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 2623099 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 1111 728 65 8 0 783 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4444

[startup+0.509651 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 7998
/proc/meminfo: memFree=1608432/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=9592 CPUtime=0.5
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 2025 0 0 0 49 1 0 0 21 0 1 0 246167681 9822208 2003 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529346 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 2398 2003 65 8 0 2070 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9592

[startup+1.33075 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 7998
/proc/meminfo: memFree=1593008/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=19756 CPUtime=1.32
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 4574 0 0 0 130 2 0 0 25 0 1 0 246167681 20230144 4552 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 4939 4552 65 8 0 4611 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 19756

[startup+2.96794 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 8000
/proc/meminfo: memFree=1578608/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=40348 CPUtime=2.95
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 9714 0 0 0 292 3 0 0 25 0 1 0 246167681 41316352 9692 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 10087 9692 65 8 0 9759 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 40348

[startup+6.24732 s]
/proc/loadavg: 0.08 0.02 0.01 2/87 8002
/proc/meminfo: memFree=1536240/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=81796 CPUtime=6.23
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 20072 0 0 0 616 7 0 0 25 0 1 0 246167681 83759104 20050 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528704 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 20449 20050 65 8 0 20121 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 81796

[startup+12.7061 s]
/proc/loadavg: 0.15 0.03 0.01 2/81 8024
/proc/meminfo: memFree=1452376/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=162580 CPUtime=12.67
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 40270 0 0 0 1252 15 0 0 25 0 1 0 246167681 166481920 40248 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 40645 40248 65 8 0 40317 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 162580

[startup+25.5156 s]
/proc/loadavg: 0.34 0.08 0.02 2/81 8024
/proc/meminfo: memFree=1298464/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=320880 CPUtime=25.48
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 79875 0 0 0 2517 31 0 0 25 0 1 0 246167681 328581120 79853 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 80220 79853 65 8 0 79892 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 320880

[startup+51.1276 s]
/proc/loadavg: 0.56 0.15 0.05 2/81 8026
/proc/meminfo: memFree=977440/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=637844 CPUtime=51.08
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 159125 0 0 0 5045 63 0 0 25 0 1 0 246167681 653152256 159103 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528756 0 0 4096 0 0 0 0 17 0 0 0
/proc/7997/statm: 159461 159103 65 8 0 159133 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 637844



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+74.0692 s]
/proc/loadavg: 0.71 0.22 0.07 2/81 8028
/proc/meminfo: memFree=687768/2055924 swapFree=4165736/4192956
[pid=7997] ppid=7995 vsize=921896 CPUtime=74.02
/proc/7997/stat : 7997 (VALCSP) R 7995 7997 7703 0 -1 4194304 230127 0 0 0 7312 90 0 0 25 0 1 0 246167681 944021504 230105 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/7997/statm: 230474 230105 65 8 0 230146 0
Current children cumulated CPU time (s) 74.02
Current children cumulated vsize (KiB) 921896

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 74.218
CPU time (s): 74.1697
CPU user time (s): 73.1209
CPU system time (s): 1.04884
CPU usage (%): 99.9349
Max. virtual memory (cumulated for all children) (KiB): 921896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 73.1209
system time used= 1.04884
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230127
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= 6
involuntary context switches= 258

runsolver used 0.066989 s user time and 0.205968 s system time

The end



Launcher Data (download as text)




Begin job on node6 on Tue Jan 16 20:02:02 UTC 2007


IDJOB= 267812
IDBENCH= 3085
IDSOLVER= 90
FILE ID= node6/267812-1168977722

PBS_JOBID= 3565937

Free space on /tmp= 66562 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-200.xml
COMMAND LINE= /tmp/evaluation/267812-1168977722/VALCSP /tmp/evaluation/267812-1168977722/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-267812-1168977722 -o ROOT/results/node6/solver-267812-1168977722 -C 1800 -M 900  /tmp/evaluation/267812-1168977722/VALCSP /tmp/evaluation/267812-1168977722/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  bc9638d33bc2eb3542de683de70ee98a

RANDOM SEED= 148130783

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		: 3000.240
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		: 3000.240
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:       1608912 kB
Buffers:         51076 kB
Cached:         299028 kB
SwapCached:       2476 kB
Active:         174508 kB
Inactive:       213048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1608912 kB
SwapTotal:     4192956 kB
SwapFree:      4165736 kB
Dirty:            2716 kB
Writeback:           0 kB
Mapped:          47508 kB
Slab:            44132 kB
Committed_AS:  7384820 kB
PageTables:       2440 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= 66562 MiB



End job on node6 on Tue Jan 16 20:03:35 UTC 2007