Trace number 245864

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 3.0? (MO) 85.499 85.9628

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/node10/watcher-245864-1168383183 -o ROOT/results/node10/solver-245864-1168383183 -C 1800 -M 900 /tmp/evaluation/245864-1168383183/VALCSP /tmp/evaluation/245864-1168383183/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: 0.24 0.62 0.93 2/82 7879
/proc/meminfo: memFree=1726656/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=3712 CPUtime=0
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 679 0 0 0 0 0 0 0 18 0 1 0 186713565 3801088 657 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 9340539 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 928 662 62 8 0 600 0

[startup+0.101649 s]
/proc/loadavg: 0.24 0.62 0.93 2/82 7879
/proc/meminfo: memFree=1726656/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=6480 CPUtime=0.09
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 1098 0 0 0 9 0 0 0 18 0 1 0 186713565 6635520 1076 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530305 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 1620 1076 65 8 0 1292 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6480

[startup+0.509702 s]
/proc/loadavg: 0.24 0.62 0.93 2/82 7879
/proc/meminfo: memFree=1726656/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=8988 CPUtime=0.49
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 1720 0 0 0 49 0 0 0 21 0 1 0 186713565 9203712 1698 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530293 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 2247 1698 65 8 0 1919 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 8988

[startup+1.33081 s]
/proc/loadavg: 0.24 0.62 0.93 2/82 7879
/proc/meminfo: memFree=1700352/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=15324 CPUtime=1.32
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 3322 0 0 0 131 1 0 0 25 0 1 0 186713565 15691776 3300 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 3831 3300 65 8 0 3503 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 15324

[startup+2.96704 s]
/proc/loadavg: 0.24 0.62 0.93 2/82 7879
/proc/meminfo: memFree=1673984/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=29184 CPUtime=2.95
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 6791 0 0 0 293 2 0 0 25 0 1 0 186713565 29884416 6769 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530220 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 7296 6769 65 8 0 6968 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 29184

[startup+6.24648 s]
/proc/loadavg: 0.46 0.66 0.94 4/82 8499
/proc/meminfo: memFree=1593472/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=63768 CPUtime=6.2
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 15419 0 0 0 613 7 0 0 25 0 1 0 186713565 65298432 15397 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/7878/statm: 15942 15397 65 8 0 15614 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 63768

[startup+12.7124 s]
/proc/loadavg: 0.67 0.70 0.95 3/87 8555
/proc/meminfo: memFree=1357336/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=135576 CPUtime=12.63
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 33390 0 0 0 1249 14 0 0 25 0 1 0 186713565 138829824 33368 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 0 0 0
/proc/7878/statm: 33894 33368 65 8 0 33566 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 135576

[startup+25.5311 s]
/proc/loadavg: 1.18 0.81 0.98 3/87 8555
/proc/meminfo: memFree=723032/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=275496 CPUtime=25.37
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 68352 0 0 0 2506 31 0 0 25 0 1 0 186713565 282107904 68330 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530867 0 0 4096 0 0 0 0 17 0 0 0
/proc/7878/statm: 68874 68330 65 8 0 68546 0
Current children cumulated CPU time (s) 25.37
Current children cumulated vsize (KiB) 275496

[startup+51.1646 s]
/proc/loadavg: 1.45 0.91 1.01 3/86 8593
/proc/meminfo: memFree=1061016/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=547288 CPUtime=50.86
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 136319 0 0 0 5019 67 0 0 25 0 1 0 186713565 560422912 136297 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/7878/statm: 136822 136297 65 8 0 136494 0
Current children cumulated CPU time (s) 50.86
Current children cumulated vsize (KiB) 547288



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+85.8223 s]
/proc/loadavg: 1.69 1.02 1.04 3/86 8593
/proc/meminfo: memFree=426392/2055920 swapFree=4178216/4192956
[pid=7878] ppid=7876 vsize=922376 CPUtime=85.35
/proc/7878/stat : 7878 (VALCSP) R 7876 7878 7812 0 -1 4194304 230088 0 0 0 8429 106 0 0 25 0 1 0 186713565 944513024 230066 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/7878/statm: 230594 230066 65 8 0 230266 0
Current children cumulated CPU time (s) 85.35
Current children cumulated vsize (KiB) 922376

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 85.9628
CPU time (s): 85.499
CPU user time (s): 84.2992
CPU system time (s): 1.19982
CPU usage (%): 99.4604
Max. virtual memory (cumulated for all children) (KiB): 922376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 84.2992
system time used= 1.19982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230088
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= 3013

runsolver used 0.077988 s user time and 0.243962 s system time

The end



Launcher Data (download as text)




Begin job on node10 on Tue Jan  9 22:53:04 UTC 2007


IDJOB= 245864
IDBENCH= 10309
FILE ID= node10/245864-1168383183

PBS_JOBID= 3522478

Free space on /tmp= 66551 MiB

BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-300.xml
COMMAND LINE= /tmp/evaluation/245864-1168383183/VALCSP /tmp/evaluation/245864-1168383183/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-245864-1168383183 -o ROOT/results/node10/solver-245864-1168383183 -C 1800 -M 900  /tmp/evaluation/245864-1168383183/VALCSP /tmp/evaluation/245864-1168383183/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  06a371e55f2d982d272ecf65ee2f370a

RANDOM SEED= 436212309

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		: 3000.232
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		: 3000.232
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:       1731104 kB
Buffers:         64856 kB
Cached:         168304 kB
SwapCached:       2596 kB
Active:         142188 kB
Inactive:       125608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1731104 kB
SwapTotal:     4192956 kB
SwapFree:      4178216 kB
Dirty:           12160 kB
Writeback:           0 kB
Mapped:          43744 kB
Slab:            42112 kB
Committed_AS:  5423524 kB
PageTables:       2100 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= 66541 MiB



End job on node10 on Tue Jan  9 22:54:30 UTC 2007