Trace number 2065807

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
pcs 0.3.2SAT 3.22351 3.26126

DiagnosticValue
ASSIGNMENTS10243

General information on the benchmark

Namecsp/ramsey3/
normalized-ramsey-13-3.xml
MD5SUM8ae345bab31379895c363f2bae4c048e
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.018996
Satisfiable
(Un)Satisfiability was proved
Number of variables78
Number of constraints286
Maximum constraint arity3
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension286
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.21	c Seed is 1430122790
0.18/0.21	c Constructing HOME/instance-2065807-1247703945.xml  with 2860 constraints
0.18/0.21	c Solving 10243 backtracks 14 restarts
3.15/3.26	s SATISFIABLE
3.15/3.26	c V0=0, V1=1, V2=2, V3=2, V4=2, V5=0, V6=2, V7=1, V8=0, V9=1, V10=1, V11=1, V12=2, V13=0, V14=0, V15=2, V16=1, V17=2, V18=0, V19=1, V20=1, V21=0, V22=1, V23=2, V24=1, V25=1, V26=1, V27=0, V28=2, V29=2, V30=2, V31=0, V32=0, V33=1, V34=0, V35=2, V36=0, V37=1, V38=0, V39=1, V40=2, V41=1, V42=0, V43=2, V44=0, V45=2, V46=1, V47=0, V48=1, V49=0, V50=2, V51=1, V52=0, V53=1, V54=2, V55=0, V56=1, V57=0, V58=1, V59=2, V60=0, V61=1, V62=2, V63=2, V64=2, V65=1, V66=1, V67=2, V68=1, V69=0, V70=2, V71=0, V72=0, V73=2, V74=0, V75=0, V76=2, V77=2, 
3.15/3.26	v 0 1 2 2 2 0 2 1 0 1 1 1 2 0 0 2 1 2 0 1 1 0 1 2 1 1 1 0 2 2 2 0 0 1 0 2 0 1 0 1 2 1 0 2 0 2 1 0 1 0 2 1 0 1 2 0 1 0 1 2 0 1 2 2 2 1 1 2 1 0 2 0 0 2 0 0 2 2 
3.15/3.26	d ASSIGNMENTS 10243

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2065807-1247703945/watcher-2065807-1247703945 -o /tmp/evaluation-result-2065807-1247703945/solver-2065807-1247703945 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1430122790 HOME/instance-2065807-1247703945.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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 s]
/proc/loadavg: 2.00 2.00 1.91 4/81 14719
/proc/meminfo: memFree=1143336/2055920 swapFree=4192812/4192956
[pid=14719] ppid=14717 vsize=5356 CPUtime=0
/proc/14719/stat : 14719 (pcssolve) R 14717 14719 12146 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 57460561 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 254195329695 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14719/statm: 1339 241 200 169 0 50 0
[pid=14720] ppid=14719 vsize=5356 CPUtime=0
/proc/14720/stat : 14720 (pcssolve) R 14719 14719 12146 0 -1 4194368 22 0 0 0 0 0 0 0 22 0 1 0 57460562 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 254195330343 0 0 4096 0 0 0 0 17 1 0 0
/proc/14720/statm: 1339 243 202 169 0 50 0
[pid=14721] ppid=14719 vsize=5356 CPUtime=0
/proc/14721/stat : 14721 (pcssolve) R 14719 14719 12146 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 57460562 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 254195329695 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14721/statm: 1339 241 200 169 0 50 0

[startup+0.0150859 s]
/proc/loadavg: 2.00 2.00 1.91 4/81 14719
/proc/meminfo: memFree=1143336/2055920 swapFree=4192812/4192956
[pid=14719] ppid=14717 vsize=5356 CPUtime=0
/proc/14719/stat : 14719 (pcssolve) S 14717 14719 12146 0 -1 4194304 339 474 0 0 0 0 0 0 23 0 1 0 57460561 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 254195327812 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14719/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.102049 s]
/proc/loadavg: 2.00 2.00 1.91 4/81 14719
/proc/meminfo: memFree=1143336/2055920 swapFree=4192812/4192956
[pid=14719] ppid=14717 vsize=5076 CPUtime=0.08
/proc/14719/stat : 14719 (pcs.small) R 14717 14719 12146 0 -1 4194304 999 822 0 0 8 0 0 0 18 0 1 0 57460561 5197824 608 996147200 134512640 135095119 4294956304 18446744073709551615 134600689 0 0 4096 0 0 0 0 17 1 0 0
/proc/14719/statm: 1269 608 387 142 0 223 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5076

[startup+0.301062 s]
/proc/loadavg: 2.00 2.00 1.91 4/81 14719
/proc/meminfo: memFree=1143336/2055920 swapFree=4192812/4192956
[pid=14719] ppid=14717 vsize=5196 CPUtime=0.27
/proc/14719/stat : 14719 (pcs.small) R 14717 14719 12146 0 -1 4194304 1008 822 0 0 27 0 0 0 19 0 1 0 57460561 5320704 617 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/14719/statm: 1299 617 387 142 0 253 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5196

[startup+0.70209 s]
/proc/loadavg: 2.00 2.00 1.91 4/81 14719
/proc/meminfo: memFree=1143336/2055920 swapFree=4192812/4192956
[pid=14719] ppid=14717 vsize=5456 CPUtime=0.68
/proc/14719/stat : 14719 (pcs.small) R 14717 14719 12146 0 -1 4194304 1095 822 0 0 68 0 0 0 23 0 1 0 57460561 5586944 671 996147200 134512640 135095119 4294956304 18446744073709551615 134591739 0 0 4096 0 0 0 0 17 1 0 0
/proc/14719/statm: 1364 671 387 142 0 318 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 5456

[startup+1.50115 s]
/proc/loadavg: 2.00 2.00 1.91 3/82 14725
/proc/meminfo: memFree=1141992/2055920 swapFree=4192812/4192956
[pid=14719] ppid=14717 vsize=5700 CPUtime=1.46
/proc/14719/stat : 14719 (pcs.small) R 14717 14719 12146 0 -1 4194304 1167 822 0 0 146 0 0 0 25 0 1 0 57460561 5836800 743 996147200 134512640 135095119 4294956304 18446744073709551615 134591777 0 0 4096 0 0 0 0 17 1 0 0
/proc/14719/statm: 1425 743 387 142 0 379 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 5700

[startup+3.10126 s]
/proc/loadavg: 2.00 2.00 1.91 3/82 14725
/proc/meminfo: memFree=1141160/2055920 swapFree=4192812/4192956
[pid=14719] ppid=14717 vsize=6568 CPUtime=3.05
/proc/14719/stat : 14719 (pcs.small) R 14717 14719 12146 0 -1 4194304 1441 822 0 0 305 0 0 0 25 0 1 0 57460561 6725632 952 996147200 134512640 135095119 4294956304 18446744073709551615 134840495 0 0 4096 0 0 0 0 17 1 0 0
/proc/14719/statm: 1642 952 387 142 0 596 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 6568

Solver just ended. Dumping a history of the last processes samples

[startup+3.20127 s]
/proc/loadavg: 2.00 2.00 1.91 3/82 14725
/proc/meminfo: memFree=1140840/2055920 swapFree=4192812/4192956
[pid=14719] ppid=14717 vsize=6568 CPUtime=3.15
/proc/14719/stat : 14719 (pcs.small) R 14717 14719 12146 0 -1 4194304 1450 822 0 0 315 0 0 0 25 0 1 0 57460561 6725632 961 996147200 134512640 135095119 4294956304 18446744073709551615 134591777 0 0 4096 0 0 0 0 17 1 0 0
/proc/14719/statm: 1642 961 387 142 0 596 0
Current children cumulated CPU time (s) 3.15
Current children cumulated vsize (KiB) 6568

Child status: 0
Real time (s): 3.26126
CPU time (s): 3.22351
CPU user time (s): 3.21051
CPU system time (s): 0.012998
CPU usage (%): 98.8424
Max. virtual memory (cumulated for all children) (KiB): 6568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.21051
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2287
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= 22
involuntary context switches= 140

runsolver used 0.007998 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node34 at 2009-07-16 02:25:45
IDJOB=2065807
IDBENCH=54431
IDSOLVER=733
FILE ID=node34/2065807-1247703945
PBS_JOBID= 9521243
Free space on /tmp= 66304 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/ramsey3/normalized-ramsey-13-3.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2065807-1247703945/watcher-2065807-1247703945 -o /tmp/evaluation-result-2065807-1247703945/solver-2065807-1247703945 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1430122790 HOME/instance-2065807-1247703945.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 8ae345bab31379895c363f2bae4c048e
RANDOM SEED=1430122790

node34.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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:       1143944 kB
Buffers:        100008 kB
Cached:         667440 kB
SwapCached:          0 kB
Active:         313716 kB
Inactive:       515776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1143944 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1968 kB
Writeback:           0 kB
Mapped:          82404 kB
Slab:            67816 kB
Committed_AS:   607956 kB
PageTables:       1920 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= 66300 MiB
End job on node34 at 2009-07-16 02:25:49