Trace number 231755

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 3.0SAT 0.151976 0.158707

DiagnosticValue
CHECKS64744
NODES50

General information on the benchmark

Namegeom/
geo50-20-d4-75-39_ext.xml
MD5SUMb546d16fc674198693e665410bfcd31c
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.104983
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables50
Number of constraints356
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension356
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.15	s SATISFIABLE
0.15	v 6 11 1 3 2 1 20 7 2 7 10 19 11 4 3 5 1 3 7 2 2 11 6 16 6 2 13 1 4 3 6 2 5 4 6 5 17 9 1 4 6 4 13 1 18 12 13 2 1 10 
0.15	d CHECKS 64744
0.15	d NODES 50
0.15

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node18/watcher-231755-1168318531 -o ROOT/results/node18/solver-231755-1168318531 -C 1800 -M 900 /tmp/evaluation/231755-1168318531/VALCSP /tmp/evaluation/231755-1168318531/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: 1.70 1.57 1.56 5/88 17714
/proc/meminfo: memFree=1445168/2055920 swapFree=4192812/4192956
[pid=17713] ppid=17711 vsize=1384 CPUtime=0
/proc/17713/stat : 17713 (VALCSP) R 17711 17713 17587 0 -1 4194304 57 0 0 0 0 0 0 0 20 0 1 0 180247833 1417216 42 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 7825204 0 0 4096 0 0 0 0 17 1 0 0
/proc/17713/statm: 346 42 34 8 0 6 0

[startup+0.104368 s]
/proc/loadavg: 1.70 1.57 1.56 5/88 17714
/proc/meminfo: memFree=1445168/2055920 swapFree=4192812/4192956
[pid=17713] ppid=17711 vsize=2656 CPUtime=0.09
/proc/17713/stat : 17713 (VALCSP) R 17711 17713 17587 0 -1 4194304 425 0 0 0 9 0 0 0 20 0 1 0 180247833 2719744 403 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134536549 0 0 4096 0 0 0 0 17 1 0 0
/proc/17713/statm: 664 403 63 8 0 336 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2656

Child status: 0
Real time (s): 0.158707
CPU time (s): 0.151976
CPU user time (s): 0.148977
CPU system time (s): 0.002999
CPU usage (%): 95.7589
Max. virtual memory (cumulated for all children) (KiB): 2656

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.148977
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 660
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= 8

runsolver used 0.002999 s user time and 0.005999 s system time

The end

Launcher Data (download as text)

Begin job on node18 on Tue Jan  9 04:55:31 UTC 2007


IDJOB= 231755
IDBENCH= 6483
FILE ID= node18/231755-1168318531

PBS_JOBID= 3502650

Free space on /tmp= 66552 MiB

BENCH NAME= HOME/pub/bench/CPAI06/geom/geo50-20-d4-75-39_ext.xml
COMMAND LINE= /tmp/evaluation/231755-1168318531/VALCSP /tmp/evaluation/231755-1168318531/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-231755-1168318531 -o ROOT/results/node18/solver-231755-1168318531 -C 1800 -M 900  /tmp/evaluation/231755-1168318531/VALCSP /tmp/evaluation/231755-1168318531/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  b546d16fc674198693e665410bfcd31c

RANDOM SEED= 730608111

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:       1445584 kB
Buffers:         99308 kB
Cached:         385736 kB
SwapCached:          0 kB
Active:         347740 kB
Inactive:       201108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1445584 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             672 kB
Writeback:           0 kB
Mapped:          84404 kB
Slab:            46408 kB
Committed_AS:  5414320 kB
PageTables:       2096 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= 66552 MiB



End job on node18 on Tue Jan  9 04:55:32 UTC 2007