Trace number 268000

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 3.1UNSAT 0.413936 0.417556

DiagnosticValue
CHECKS517493
NODES0

General information on the benchmark

Namerlfap/rlfapGraphs/
graph6.xml
MD5SUMc50dbbefd6ab60c3d06d4df6d3eb879d
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 benchmark0.280957
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables400
Number of constraints2170
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2170
Global constraints used (with number of constraints)

Solver Data (download as text)

0.41	s UNSATISFIABLE
0.41	d CHECKS 517493
0.41	d NODES 0

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node41/watcher-268000-1168977863 -o ROOT/results/node41/solver-268000-1168977863 -C 1800 -M 900 /tmp/evaluation/268000-1168977863/VALCSP /tmp/evaluation/268000-1168977863/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: 0.16 0.03 0.01 5/70 11756
/proc/meminfo: memFree=1628088/2055920 swapFree=4191892/4192956
[pid=11755] ppid=11752 vsize=3052 CPUtime=0
/proc/11755/stat : 11755 (VALCSP) R 11752 11755 11370 0 -1 4194304 512 0 0 0 0 0 0 0 18 0 1 0 246186185 3125248 491 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 2397819 0 0 4096 0 0 0 0 17 1 0 0
/proc/11755/statm: 763 497 64 8 0 435 0

[startup+0.102636 s]
/proc/loadavg: 0.16 0.03 0.01 5/70 11756
/proc/meminfo: memFree=1628088/2055920 swapFree=4191892/4192956
[pid=11755] ppid=11752 vsize=7144 CPUtime=0.09
/proc/11755/stat : 11755 (VALCSP) R 11752 11755 11370 0 -1 4194304 1541 0 0 0 9 0 0 0 18 0 1 0 246186185 7315456 1519 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 2397819 0 0 4096 0 0 0 0 17 1 0 0
/proc/11755/statm: 1786 1519 64 8 0 1458 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7144

Child status: 0
Real time (s): 0.417556
CPU time (s): 0.413936
CPU user time (s): 0.396939
CPU system time (s): 0.016997
CPU usage (%): 99.1331
Max. virtual memory (cumulated for all children) (KiB): 19308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.396939
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4623
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= 8
involuntary context switches= 4

runsolver used 0.002999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue Jan 16 20:04:29 UTC 2007


IDJOB= 268000
IDBENCH= 3285
IDSOLVER= 90
FILE ID= node41/268000-1168977863

PBS_JOBID= 3566164

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/rlfap/rlfapGraphs/graph6.xml
COMMAND LINE= /tmp/evaluation/268000-1168977863/VALCSP /tmp/evaluation/268000-1168977863/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-268000-1168977863 -o ROOT/results/node41/solver-268000-1168977863 -C 1800 -M 900  /tmp/evaluation/268000-1168977863/VALCSP /tmp/evaluation/268000-1168977863/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  c50dbbefd6ab60c3d06d4df6d3eb879d

RANDOM SEED= 543116375

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		: 3000.234
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		: 3000.234
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:       1628960 kB
Buffers:         48648 kB
Cached:         281284 kB
SwapCached:        276 kB
Active:         158272 kB
Inactive:       191264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1628960 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:             864 kB
Writeback:           0 kB
Mapped:          28656 kB
Slab:            63036 kB
Committed_AS:  4717772 kB
PageTables:       1744 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 node41 on Tue Jan 16 20:04:35 UTC 2007