Trace number 269703

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) 117.191 118.291

General information on the benchmark

NamelargeQueens/
queens-500.xml
MD5SUM5b25d062fefd9db3976f835c6c16921b
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 benchmark27.5908
SatisfiableYES
(Un)Satisfiability was proved
Number of variables500
Number of constraints124750
Maximum constraint arity2
Maximum domain size500
Number of constraints which are defined in extension0
Number of constraints which are defined in intension124750
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/node3/watcher-269703-1168982765 -o ROOT/results/node3/solver-269703-1168982765 -C 1800 -M 900 /tmp/evaluation/269703-1168982765/VALCSP /tmp/evaluation/269703-1168982765/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: 2.08 2.02 1.85 5/86 21740
/proc/meminfo: memFree=1482512/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=2788 CPUtime=0
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 442 0 0 0 0 0 0 0 20 0 1 0 246672240 2854912 420 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 11359867 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 697 420 64 8 0 369 0

[startup+0.107194 s]
/proc/loadavg: 2.08 2.02 1.85 5/86 21740
/proc/meminfo: memFree=1482512/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=13236 CPUtime=0.09
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 2344 0 0 0 8 1 0 0 20 0 1 0 246672240 13553664 2322 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 3309 2322 65 8 0 2981 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13236

[startup+0.517257 s]
/proc/loadavg: 2.08 2.02 1.85 5/86 21740
/proc/meminfo: memFree=1482512/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=16272 CPUtime=0.5
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 3081 0 0 0 49 1 0 0 24 0 1 0 246672240 16662528 3059 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 4068 3059 65 8 0 3740 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 16272

[startup+1.34239 s]
/proc/loadavg: 2.08 2.02 1.85 3/86 21740
/proc/meminfo: memFree=1465552/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=23136 CPUtime=1.32
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 4802 0 0 0 130 2 0 0 25 0 1 0 246672240 23691264 4780 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528672 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 5784 4780 65 8 0 5456 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 23136

[startup+2.98066 s]
/proc/loadavg: 2.07 2.02 1.85 3/86 21740
/proc/meminfo: memFree=1456720/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=34884 CPUtime=2.94
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 7751 0 0 0 291 3 0 0 25 0 1 0 246672240 35721216 7729 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528604 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 8721 7729 65 8 0 8393 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 34884

[startup+6.26219 s]
/proc/loadavg: 2.07 2.02 1.85 3/86 21740
/proc/meminfo: memFree=1431056/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=60492 CPUtime=6.19
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 14142 0 0 0 613 6 0 0 25 0 1 0 246672240 61943808 14120 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528646 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 15123 14120 65 8 0 14795 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 60492

[startup+12.7232 s]
/proc/loadavg: 2.06 2.02 1.85 3/86 21740
/proc/meminfo: memFree=1378064/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=110652 CPUtime=12.59
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 26677 0 0 0 1248 11 0 0 25 0 1 0 246672240 113307648 26655 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 27663 26655 65 8 0 27335 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 110652

[startup+25.5363 s]
/proc/loadavg: 2.05 2.01 1.85 3/86 21740
/proc/meminfo: memFree=1283600/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=208992 CPUtime=25.29
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 51257 0 0 0 2508 21 0 0 25 0 1 0 246672240 214007808 51235 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 52248 51235 65 8 0 51920 0
Current children cumulated CPU time (s) 25.29
Current children cumulated vsize (KiB) 208992

[startup+51.1755 s]
/proc/loadavg: 2.03 2.01 1.85 3/86 21740
/proc/meminfo: memFree=1083664/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=406596 CPUtime=50.69
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 100662 0 0 0 5029 40 0 0 25 0 1 0 246672240 416354304 100640 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 101649 100640 65 8 0 101321 0
Current children cumulated CPU time (s) 50.69
Current children cumulated vsize (KiB) 406596

[startup+102.454 s]
/proc/loadavg: 2.01 2.01 1.86 3/86 21740
/proc/meminfo: memFree=691536/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=800748 CPUtime=101.49
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 199226 0 0 0 10069 80 0 0 25 0 1 0 246672240 819965952 199204 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 200187 199204 65 8 0 199859 0
Current children cumulated CPU time (s) 101.49
Current children cumulated vsize (KiB) 800748



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+118.145 s]
/proc/loadavg: 2.01 2.00 1.86 3/86 21740
/proc/meminfo: memFree=563472/2055920 swapFree=4191880/4192956
[pid=21739] ppid=21737 vsize=921792 CPUtime=117.04
/proc/21739/stat : 21739 (VALCSP) R 21737 21739 21153 0 -1 4194304 229460 0 0 0 11612 92 0 0 25 0 1 0 246672240 943915008 229438 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/21739/statm: 230448 229438 65 8 0 230120 0
Current children cumulated CPU time (s) 117.04
Current children cumulated vsize (KiB) 921792

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 118.291
CPU time (s): 117.191
CPU user time (s): 116.122
CPU system time (s): 1.06884
CPU usage (%): 99.0701
Max. virtual memory (cumulated for all children) (KiB): 921792

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 116.122
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= 229460
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= 4574

runsolver used 0.156976 s user time and 0.373943 s system time

The end



Launcher Data (download as text)




Begin job on node3 on Tue Jan 16 21:26:06 UTC 2007


IDJOB= 269703
IDBENCH= 10311
IDSOLVER= 90
FILE ID= node3/269703-1168982765

PBS_JOBID= 3566032

Free space on /tmp= 66548 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-500.xml
COMMAND LINE= /tmp/evaluation/269703-1168982765/VALCSP /tmp/evaluation/269703-1168982765/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-269703-1168982765 -o ROOT/results/node3/solver-269703-1168982765 -C 1800 -M 900  /tmp/evaluation/269703-1168982765/VALCSP /tmp/evaluation/269703-1168982765/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  5b25d062fefd9db3976f835c6c16921b

RANDOM SEED= 514169613

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		: 3000.279
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		: 3000.279
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:       1482992 kB
Buffers:         51776 kB
Cached:         368724 kB
SwapCached:        284 kB
Active:         261960 kB
Inactive:       238184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1482992 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           16352 kB
Writeback:           0 kB
Mapped:          91972 kB
Slab:            57852 kB
Committed_AS:  6652004 kB
PageTables:       2052 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= 66548 MiB



End job on node3 on Tue Jan 16 21:28:09 UTC 2007