Trace number 269701

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) 84.4042 85.1976

General information on the benchmark

NamelargeQueens/
queens-300.xml
MD5SUM06a371e55f2d982d272ecf65ee2f370a
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 benchmark2.58461
SatisfiableYES
(Un)Satisfiability was proved
Number of variables300
Number of constraints44850
Maximum constraint arity2
Maximum domain size300
Number of constraints which are defined in extension0
Number of constraints which are defined in intension44850
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/node9/watcher-269701-1168982679 -o ROOT/results/node9/solver-269701-1168982679 -C 1800 -M 900 /tmp/evaluation/269701-1168982679/VALCSP /tmp/evaluation/269701-1168982679/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: 1.72 1.89 1.81 5/86 27588
/proc/meminfo: memFree=1674064/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=18540 CPUtime=0
/proc/27587/stat : 27587 (runsolver) R 27585 27587 27531 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 246663119 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 215418989863 0 0 4096 24578 0 0 0 17 1 0 0
/proc/27587/statm: 4635 279 244 17 0 2626 0

[startup+0.13258 s]
/proc/loadavg: 1.72 1.89 1.81 5/86 27588
/proc/meminfo: memFree=1674064/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=6744 CPUtime=0.12
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 1187 0 0 0 12 0 0 0 21 0 1 0 246663119 6905856 1165 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 1686 1165 65 8 0 1358 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 6744

[startup+0.540628 s]
/proc/loadavg: 1.72 1.89 1.81 5/86 27588
/proc/meminfo: memFree=1674064/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=11100 CPUtime=0.51
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 2254 0 0 0 51 0 0 0 25 0 1 0 246663119 11366400 2232 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 2775 2232 65 8 0 2447 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 11100

[startup+1.36172 s]
/proc/loadavg: 1.72 1.89 1.81 3/86 27588
/proc/meminfo: memFree=1658896/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=19944 CPUtime=1.33
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 4478 0 0 0 132 1 0 0 25 0 1 0 246663119 20422656 4456 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 4986 4456 65 8 0 4658 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 19944

[startup+2.9989 s]
/proc/loadavg: 1.72 1.89 1.81 3/86 27588
/proc/meminfo: memFree=1646416/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=37368 CPUtime=2.96
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 8837 0 0 0 293 3 0 0 25 0 1 0 246663119 38264832 8815 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 9342 8815 65 8 0 9014 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 37368

[startup+6.28728 s]
/proc/loadavg: 1.75 1.89 1.81 3/86 27588
/proc/meminfo: memFree=1609616/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=73008 CPUtime=6.21
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 17733 0 0 0 615 6 0 0 25 0 1 0 246663119 74760192 17711 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528600 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 18252 17711 65 8 0 17924 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 73008

[startup+12.746 s]
/proc/loadavg: 1.77 1.90 1.81 3/86 27588
/proc/meminfo: memFree=1537680/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=141648 CPUtime=12.62
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 34903 0 0 0 1248 14 0 0 25 0 1 0 246663119 145047552 34881 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528683 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 35412 34881 65 8 0 35084 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 141648

[startup+25.5645 s]
/proc/loadavg: 1.82 1.90 1.81 3/86 27588
/proc/meminfo: memFree=1403728/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=280116 CPUtime=25.31
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 69508 0 0 0 2503 28 0 0 25 0 1 0 246663119 286838784 69486 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 70029 69486 65 8 0 69701 0
Current children cumulated CPU time (s) 25.31
Current children cumulated vsize (KiB) 280116

[startup+51.2014 s]
/proc/loadavg: 1.88 1.91 1.82 3/86 27588
/proc/meminfo: memFree=1123152/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=556528 CPUtime=50.71
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 138633 0 0 0 5017 54 0 0 25 0 1 0 246663119 569884672 138611 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 139132 138611 65 8 0 138804 0
Current children cumulated CPU time (s) 50.71
Current children cumulated vsize (KiB) 556528



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+85.0422 s]
/proc/loadavg: 1.93 1.92 1.82 3/86 27588
/proc/meminfo: memFree=752720/2055920 swapFree=4191880/4192956
[pid=27587] ppid=27585 vsize=921968 CPUtime=84.25
/proc/27587/stat : 27587 (VALCSP) R 27585 27587 27531 0 -1 4194304 229999 0 0 0 8334 91 0 0 25 0 1 0 246663119 944095232 229977 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/27587/statm: 230492 229977 65 8 0 230164 0
Current children cumulated CPU time (s) 84.25
Current children cumulated vsize (KiB) 921968

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 85.1976
CPU time (s): 84.4042
CPU user time (s): 83.3463
CPU system time (s): 1.05784
CPU usage (%): 99.0688
Max. virtual memory (cumulated for all children) (KiB): 921968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 83.3463
system time used= 1.05784
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229999
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= 3442

runsolver used 0.133979 s user time and 0.254961 s system time

The end



Launcher Data (download as text)




Begin job on node9 on Tue Jan 16 21:24:40 UTC 2007


IDJOB= 269701
IDBENCH= 10309
IDSOLVER= 90
FILE ID= node9/269701-1168982679

PBS_JOBID= 3566061

Free space on /tmp= 66558 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-300.xml
COMMAND LINE= /tmp/evaluation/269701-1168982679/VALCSP /tmp/evaluation/269701-1168982679/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-269701-1168982679 -o ROOT/results/node9/solver-269701-1168982679 -C 1800 -M 900  /tmp/evaluation/269701-1168982679/VALCSP /tmp/evaluation/269701-1168982679/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  06a371e55f2d982d272ecf65ee2f370a

RANDOM SEED= 35891915

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		: 3000.231
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:       1674480 kB
Buffers:         50336 kB
Cached:         190592 kB
SwapCached:        268 kB
Active:          98808 kB
Inactive:       200952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1674480 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            6088 kB
Writeback:           0 kB
Mapped:          71344 kB
Slab:            66504 kB
Committed_AS:  7416328 kB
PageTables:       2264 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= 66558 MiB



End job on node9 on Tue Jan 16 21:26:05 UTC 2007