Trace number 1089700

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
bpsolver 2008-06-27UNSAT 2.27365 2.28878

General information on the benchmark

Namecsp/graphColoring/leighton/leighton-15/
normalized-lei450-15c-14.xml
MD5SUM2bd39fc824a9aa9825590a76be10fd6c
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 benchmark0.618905
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of constraints16680
Maximum constraint arity2
Maximum domain size14
Number of constraints which are defined in extension0
Number of constraints which are defined in intension16680
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.02	c bpsolver version 6.27.2008
0.00/0.02	c converting(HOME/instance-1089700-1215269200)
1.68/1.79	c Converted in 824 ms
1.68/1.79	c solving(HOME/instance-1089700-1215269200,1800000)
2.19/2.28	s UNSATISFIABLE
2.19/2.28	
2.19/2.28	
2.19/2.28	c Time=469 ms
2.19/2.28

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1089700-1215269200/watcher-1089700-1215269200 -o /tmp/evaluation-result-1089700-1215269200/solver-1089700-1215269200 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solver HOME/instance-1089700-1215269200 1800 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.06 2.02 2.00 4/72 16724
/proc/meminfo: memFree=1774136/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=4828 CPUtime=0
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 345 0 0 0 0 0 0 0 22 0 1 0 2005893819 4943872 63 996147200 134512640 134990860 4294956096 18446744073709551615 4131537 0 0 4096 0 0 0 0 17 1 0 0
/proc/16724/statm: 1207 63 48 116 0 706 0

[startup+0.17819 s]
/proc/loadavg: 2.06 2.02 2.00 4/72 16724
/proc/meminfo: memFree=1774136/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=56080 CPUtime=0.16
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 1152 0 0 0 7 9 0 0 22 0 1 0 2005893819 57425920 865 996147200 134512640 134990860 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16724/statm: 14020 865 178 116 0 13531 0
Current children cumulated CPU time (s) 0.16
Current children cumulated vsize (KiB) 56080

[startup+0.202192 s]
/proc/loadavg: 2.06 2.02 2.00 4/72 16724
/proc/meminfo: memFree=1774136/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=56080 CPUtime=0.18
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 1153 0 0 0 8 10 0 0 22 0 1 0 2005893819 57425920 866 996147200 134512640 134990860 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16724/statm: 14020 866 178 116 0 13531 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 56080

[startup+0.302201 s]
/proc/loadavg: 2.06 2.02 2.00 4/72 16724
/proc/meminfo: memFree=1774136/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=56080 CPUtime=0.28
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 1155 0 0 0 13 15 0 0 23 0 1 0 2005893819 57425920 868 996147200 134512640 134990860 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16724/statm: 14020 868 178 116 0 13531 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 56080

[startup+0.702235 s]
/proc/loadavg: 2.06 2.02 2.00 4/72 16724
/proc/meminfo: memFree=1774136/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=56080 CPUtime=0.68
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 1167 0 0 0 32 36 0 0 25 0 1 0 2005893819 57425920 880 996147200 134512640 134990860 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16724/statm: 14020 880 178 116 0 13531 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 56080

[startup+1.50128 s]
/proc/loadavg: 2.14 2.04 2.01 3/73 16725
/proc/meminfo: memFree=1770800/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=56080 CPUtime=1.48
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 1189 0 0 0 70 78 0 0 25 0 1 0 2005893819 57425920 902 996147200 134512640 134990860 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16724/statm: 14020 902 178 116 0 13531 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 56080

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

[startup+1.60128 s]
/proc/loadavg: 2.14 2.04 2.01 3/73 16725
/proc/meminfo: memFree=1770800/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=56080 CPUtime=1.58
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 1192 0 0 0 74 84 0 0 25 0 1 0 2005893819 57425920 905 996147200 134512640 134990860 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16724/statm: 14020 905 178 116 0 13531 0
Current children cumulated CPU time (s) 1.58
Current children cumulated vsize (KiB) 56080

[startup+2.00132 s]
/proc/loadavg: 2.14 2.04 2.01 3/73 16725
/proc/meminfo: memFree=1770800/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=68468 CPUtime=1.99
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 3421 0 0 0 103 96 0 0 25 0 1 0 2005893819 70111232 3129 996147200 134512640 134990860 4294956096 18446744073709551615 134959280 0 0 4096 2 0 0 0 17 1 0 0
/proc/16724/statm: 17117 3129 180 116 0 16628 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 68468

[startup+2.20132 s]
/proc/loadavg: 2.14 2.04 2.01 3/73 16725
/proc/meminfo: memFree=1760304/2055920 swapFree=4180452/4192956
[pid=16724] ppid=16722 vsize=68468 CPUtime=2.19
/proc/16724/stat : 16724 (bprolog) R 16722 16724 16448 0 -1 4194304 3689 0 0 0 123 96 0 0 25 0 1 0 2005893819 70111232 3397 996147200 134512640 134990860 4294956096 18446744073709551615 134571801 0 0 4096 2 0 0 0 17 1 0 0
/proc/16724/statm: 17117 3397 184 116 0 16628 0
Current children cumulated CPU time (s) 2.19
Current children cumulated vsize (KiB) 68468

Child status: 0
Real time (s): 2.28878
CPU time (s): 2.27365
CPU user time (s): 1.3098
CPU system time (s): 0.963853
CPU usage (%): 99.3392
Max. virtual memory (cumulated for all children) (KiB): 68468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3098
system time used= 0.963853
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3709
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= 4
involuntary context switches= 47

runsolver used 0.003999 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node29 at 2008-07-05 16:46:40
IDJOB=1089700
IDBENCH=58299
IDSOLVER=347
FILE ID=node29/1089700-1215269200
PBS_JOBID= 7882229
Free space on /tmp= 66492 MiB

SOLVER NAME= bpsolver 2008-06-27
BENCH NAME= CPAI08/csp/graphColoring/leighton/leighton-15/normalized-lei450-15c-14.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1089700-1215269200/watcher-1089700-1215269200 -o /tmp/evaluation-result-1089700-1215269200/solver-1089700-1215269200 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solver HOME/instance-1089700-1215269200 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2bd39fc824a9aa9825590a76be10fd6c
RANDOM SEED=949215955

node29.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		: 3000.220
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		: 3000.220
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:       1774680 kB
Buffers:         33712 kB
Cached:         175056 kB
SwapCached:       6928 kB
Active:         163840 kB
Inactive:        63508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1774680 kB
SwapTotal:     4192956 kB
SwapFree:      4180452 kB
Dirty:            3184 kB
Writeback:           0 kB
Mapped:          25920 kB
Slab:            39028 kB
Committed_AS:  3569296 kB
PageTables:       1944 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= 66492 MiB
End job on node29 at 2008-07-05 16:46:43