Trace number 268402

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) 87.1817 87.5375

General information on the benchmark

Namefapp/fapp16-20/fapp20/
fapp20-0420-10.xml
MD5SUM23af406adec6a7428a9ed7711c676bb5
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 benchmark2.05869
SatisfiableYES
(Un)Satisfiability was provedYES
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-268402-1168978862 -o ROOT/results/node61/solver-268402-1168978862 -C 1800 -M 900 /tmp/evaluation/268402-1168978862/VALCSP /tmp/evaluation/268402-1168978862/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: 1.81 1.27 0.78 5/73 20497
/proc/meminfo: memFree=1617752/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=3580 CPUtime=0
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 657 0 0 0 0 0 0 0 20 0 1 0 246284088 3665920 635 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10819195 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 895 635 64 8 0 567 0

[startup+0.108786 s]
/proc/loadavg: 1.81 1.27 0.78 5/73 20497
/proc/meminfo: memFree=1617752/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=6700 CPUtime=0.09
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 1390 0 0 0 9 0 0 0 20 0 1 0 246284088 6860800 1368 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528685 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 1675 1368 64 8 0 1347 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6700

[startup+0.516847 s]
/proc/loadavg: 1.81 1.27 0.78 5/73 20497
/proc/meminfo: memFree=1617752/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=10660 CPUtime=0.5
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 2387 0 0 0 49 1 0 0 24 0 1 0 246284088 10915840 2365 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 2665 2365 64 8 0 2337 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10660

[startup+1.33799 s]
/proc/loadavg: 1.83 1.28 0.79 3/73 20497
/proc/meminfo: memFree=1601688/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=20032 CPUtime=1.32
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 4733 0 0 0 130 2 0 0 25 0 1 0 246284088 20512768 4711 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528604 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 5008 4711 64 8 0 4680 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 20032

[startup+2.97528 s]
/proc/loadavg: 1.83 1.28 0.79 3/73 20497
/proc/meminfo: memFree=1589720/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=36928 CPUtime=2.95
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 8967 0 0 0 291 4 0 0 25 0 1 0 246284088 37814272 8945 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 9232 8945 64 8 0 8904 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 36928

[startup+6.25986 s]
/proc/loadavg: 1.83 1.28 0.79 3/73 20497
/proc/meminfo: memFree=1554392/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=70852 CPUtime=6.22
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 17451 0 0 0 616 6 0 0 25 0 1 0 246284088 72552448 17429 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 17713 17429 64 8 0 17385 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 70852

[startup+12.723 s]
/proc/loadavg: 1.85 1.31 0.80 3/73 20497
/proc/meminfo: memFree=1481496/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=140812 CPUtime=12.66
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 34921 0 0 0 1252 14 0 0 25 0 1 0 246284088 144191488 34899 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 35203 34899 64 8 0 34875 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 140812

[startup+25.5452 s]
/proc/loadavg: 1.88 1.33 0.82 3/73 20497
/proc/meminfo: memFree=1350872/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=275716 CPUtime=25.43
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 68643 0 0 0 2515 28 0 0 25 0 1 0 246284088 282333184 68621 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 68929 68621 64 8 0 68601 0
Current children cumulated CPU time (s) 25.43
Current children cumulated vsize (KiB) 275716

[startup+51.1867 s]
/proc/loadavg: 1.92 1.38 0.85 3/73 20497
/proc/meminfo: memFree=1080664/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=541440 CPUtime=50.97
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 135098 0 0 0 5043 54 0 0 25 0 1 0 246284088 554434560 135076 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528591 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 135360 135076 64 8 0 135032 0
Current children cumulated CPU time (s) 50.97
Current children cumulated vsize (KiB) 541440



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+87.3901 s]
/proc/loadavg: 1.96 1.46 0.89 3/73 20497
/proc/meminfo: memFree=695448/2055920 swapFree=4191892/4192956
[pid=20496] ppid=20494 vsize=921764 CPUtime=87.03
/proc/20496/stat : 20496 (VALCSP) R 20494 20496 20292 0 -1 4194304 230182 0 0 0 8606 97 0 0 25 0 1 0 246284088 943886336 230160 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20496/statm: 230441 230160 64 8 0 230113 0
Current children cumulated CPU time (s) 87.03
Current children cumulated vsize (KiB) 921764

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 87.5375
CPU time (s): 87.1817
CPU user time (s): 86.0659
CPU system time (s): 1.11583
CPU usage (%): 99.5936
Max. virtual memory (cumulated for all children) (KiB): 921764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 86.0659
system time used= 1.11583
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230182
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= 1050

runsolver used 0.069989 s user time and 0.25696 s system time

The end



Launcher Data (download as text)




Begin job on node61 on Tue Jan 16 20:21:02 UTC 2007


IDJOB= 268402
IDBENCH= 4026
IDSOLVER= 90
FILE ID= node61/268402-1168978862

PBS_JOBID= 3566213

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp16-20/fapp20/fapp20-0420-10.xml
COMMAND LINE= /tmp/evaluation/268402-1168978862/VALCSP /tmp/evaluation/268402-1168978862/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-268402-1168978862 -o ROOT/results/node61/solver-268402-1168978862 -C 1800 -M 900  /tmp/evaluation/268402-1168978862/VALCSP /tmp/evaluation/268402-1168978862/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  23af406adec6a7428a9ed7711c676bb5

RANDOM SEED= 30542169

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:       1618232 kB
Buffers:         61460 kB
Cached:         287648 kB
SwapCached:        480 kB
Active:         173152 kB
Inactive:       208832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1618232 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:             704 kB
Writeback:           0 kB
Mapped:          42472 kB
Slab:            41292 kB
Committed_AS:  4967204 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 20:22:30 UTC 2007