Trace number 268394

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) 87.4917 87.8426

General information on the benchmark

Namefapp/fapp16-20/fapp20/
fapp20-0420-9.xml
MD5SUM4139065cc010f86dfeadf2f0c1eeff5f
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 benchmark1.9747
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables420
Number of constraints4737
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4737
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/node61/watcher-268394-1168978773 -o ROOT/results/node61/solver-268394-1168978773 -C 1800 -M 900 /tmp/evaluation/268394-1168978773/VALCSP /tmp/evaluation/268394-1168978773/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+0.105436 s]
/proc/loadavg: 1.09 1.00 0.66 5/73 20456
/proc/meminfo: memFree=1618312/2055920 swapFree=4191892/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 1.09 1.00 0.66 5/73 20456
/proc/meminfo: memFree=1618312/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=6700 CPUtime=0.09
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 1390 0 0 0 9 0 0 0 20 0 1 0 246275165 6860800 1368 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529346 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 1675 1368 64 8 0 1347 0

[startup+0.513503 s]
/proc/loadavg: 1.09 1.00 0.66 5/73 20456
/proc/meminfo: memFree=1618312/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=10660 CPUtime=0.49
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 2387 0 0 0 49 0 0 0 23 0 1 0 246275165 10915840 2365 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528600 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 2665 2365 64 8 0 2337 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 10660

[startup+1.33765 s]
/proc/loadavg: 1.24 1.04 0.67 3/73 20456
/proc/meminfo: memFree=1602312/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=20428 CPUtime=1.32
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 4824 0 0 0 131 1 0 0 25 0 1 0 246275165 20918272 4802 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528924 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 5107 4802 64 8 0 4779 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 20428

[startup+2.97694 s]
/proc/loadavg: 1.24 1.04 0.67 3/73 20456
/proc/meminfo: memFree=1589960/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=37456 CPUtime=2.96
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 9099 0 0 0 293 3 0 0 25 0 1 0 246275165 38354944 9077 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528576 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 9364 9077 64 8 0 9036 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 37456

[startup+6.25851 s]
/proc/loadavg: 1.30 1.05 0.68 3/73 20456
/proc/meminfo: memFree=1554000/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=72304 CPUtime=6.22
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 17804 0 0 0 616 6 0 0 25 0 1 0 246275165 74039296 17782 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528588 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 18076 17782 64 8 0 17748 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 72304

[startup+12.7216 s]
/proc/loadavg: 1.35 1.07 0.68 3/73 20456
/proc/meminfo: memFree=1481432/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=141472 CPUtime=12.66
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 35101 0 0 0 1252 14 0 0 25 0 1 0 246275165 144867328 35079 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 35368 35079 64 8 0 35040 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 141472

[startup+25.5389 s]
/proc/loadavg: 1.45 1.10 0.70 3/73 20456
/proc/meminfo: memFree=1351768/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=275716 CPUtime=25.43
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 68643 0 0 0 2515 28 0 0 25 0 1 0 246275165 282333184 68621 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 68929 68621 64 8 0 68601 0
Current children cumulated CPU time (s) 25.43
Current children cumulated vsize (KiB) 275716

[startup+51.1824 s]
/proc/loadavg: 1.67 1.18 0.74 3/73 20458
/proc/meminfo: memFree=1083352/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=539328 CPUtime=50.97
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 134584 0 0 0 5042 55 0 0 25 0 1 0 246275165 552271872 134562 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528936 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 134832 134562 64 8 0 134504 0
Current children cumulated CPU time (s) 50.97
Current children cumulated vsize (KiB) 539328



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+87.6938 s]
/proc/loadavg: 1.81 1.27 0.78 3/73 20458
/proc/meminfo: memFree=695960/2055920 swapFree=4191892/4192956
[pid=20455] ppid=20453 vsize=922160 CPUtime=87.34
/proc/20455/stat : 20455 (VALCSP) R 20453 20455 20292 0 -1 4194304 230272 0 0 0 8638 96 0 0 25 0 1 0 246275165 944291840 230250 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529315 0 0 4096 0 0 0 0 17 1 0 0
/proc/20455/statm: 230540 230250 64 8 0 230212 0
Current children cumulated CPU time (s) 87.34
Current children cumulated vsize (KiB) 922160

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 87.8426
CPU time (s): 87.4917
CPU user time (s): 86.3839
CPU system time (s): 1.10783
CPU usage (%): 99.6005
Max. virtual memory (cumulated for all children) (KiB): 922160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 86.3839
system time used= 1.10783
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230272
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= 1056

runsolver used 0.086986 s user time and 0.236963 s system time

The end



Launcher Data (download as text)




Begin job on node61 on Tue Jan 16 20:19:33 UTC 2007


IDJOB= 268394
IDBENCH= 4018
IDSOLVER= 90
FILE ID= node61/268394-1168978773

PBS_JOBID= 3566213

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp16-20/fapp20/fapp20-0420-9.xml
COMMAND LINE= /tmp/evaluation/268394-1168978773/VALCSP /tmp/evaluation/268394-1168978773/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-268394-1168978773 -o ROOT/results/node61/solver-268394-1168978773 -C 1800 -M 900  /tmp/evaluation/268394-1168978773/VALCSP /tmp/evaluation/268394-1168978773/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  4139065cc010f86dfeadf2f0c1eeff5f

RANDOM SEED= 596407727

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		: 3000.259
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		: 3000.259
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:       1618792 kB
Buffers:         61320 kB
Cached:         286972 kB
SwapCached:        480 kB
Active:         173108 kB
Inactive:       208048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1618792 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            1120 kB
Writeback:           0 kB
Mapped:          42448 kB
Slab:            41360 kB
Committed_AS:  4967232 kB
PageTables:       1724 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 node61 on Tue Jan 16 20:21:01 UTC 2007