Trace number 2085121

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 09UNSAT 18.6112 18.7968

General information on the benchmark

Namecsp/graphColoring/leighton/leighton-15/
normalized-lei450-15c-13.xml
MD5SUM2e2238613188c0f9e19f75fabae3049a
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 benchmark0.597908
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of constraints16680
Maximum constraint arity2
Maximum domain size13
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 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2085121-1247381117)
1.77/1.81	c Converted in 778 ms
1.97/2.03	c solving(HOME/instance-2085121-1247381117,1800000)
1.97/2.03	c solving(HOME/instance-2085121-1247381117,1800000)
18.51/18.79	c before_labeling
18.51/18.79	s UNSATISFIABLE
18.51/18.79	
18.51/18.79	
18.51/18.79	c Time=16797 ms Backtracks=0
18.51/18.79

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2085121-1247381117/watcher-2085121-1247381117 -o /tmp/evaluation-result-2085121-1247381117/solver-2085121-1247381117 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2085121-1247381117 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): 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: 1.92 1.98 1.99 4/83 28183
/proc/meminfo: memFree=1051592/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=5256 CPUtime=0
/proc/28183/stat : 28183 (sh) R 28181 28183 27770 0 -1 4194304 58 0 0 0 0 0 0 0 20 0 1 0 24803045 5382144 42 996147200 4194304 4889804 548682068864 18446744073709551615 264516993744 0 0 4096 0 0 0 0 17 1 0 0
/proc/28183/statm: 1314 42 31 169 0 9 0

[startup+0.0486461 s]
/proc/loadavg: 1.92 1.98 1.99 4/83 28183
/proc/meminfo: memFree=1051592/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=62208 CPUtime=0.03
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 1131 0 0 0 2 1 0 0 20 0 1 0 24803045 63700992 844 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 15552 844 174 144 0 15036 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 62208

[startup+0.101645 s]
/proc/loadavg: 1.92 1.98 1.99 4/83 28183
/proc/meminfo: memFree=1051592/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=62208 CPUtime=0.08
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 1151 0 0 0 4 4 0 0 20 0 1 0 24803045 63700992 864 996147200 134512640 135105188 4294956096 18446744073709551615 7326925 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 15552 864 177 144 0 15036 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 62208

[startup+0.301671 s]
/proc/loadavg: 1.92 1.98 1.99 4/83 28183
/proc/meminfo: memFree=1051592/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=62208 CPUtime=0.28
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 1158 0 0 0 13 15 0 0 21 0 1 0 24803045 63700992 871 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 15552 871 177 144 0 15036 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 62208

[startup+0.70172 s]
/proc/loadavg: 1.92 1.98 1.99 4/83 28183
/proc/meminfo: memFree=1051592/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=62208 CPUtime=0.68
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 1170 0 0 0 31 37 0 0 25 0 1 0 24803045 63700992 883 996147200 134512640 135105188 4294956096 18446744073709551615 134567770 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 15552 883 177 144 0 15036 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 62208

[startup+1.50183 s]
/proc/loadavg: 1.92 1.98 1.99 3/84 28184
/proc/meminfo: memFree=1048256/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=62208 CPUtime=1.47
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 1192 0 0 0 66 81 0 0 25 0 1 0 24803045 63700992 905 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 15552 905 177 144 0 15036 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 62208

[startup+3.10103 s]
/proc/loadavg: 1.92 1.98 1.99 3/84 28184
/proc/meminfo: memFree=1037760/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=74596 CPUtime=3.06
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 3684 0 0 0 205 101 0 0 25 0 1 0 24803045 76386304 3392 996147200 134512640 135105188 4294956096 18446744073709551615 134570596 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 18649 3392 184 144 0 18133 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 74596

[startup+6.30145 s]
/proc/loadavg: 1.93 1.98 1.99 3/84 28184
/proc/meminfo: memFree=1037312/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=74856 CPUtime=6.23
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 3807 0 0 0 522 101 0 0 25 0 1 0 24803045 76652544 3482 996147200 134512640 135105188 4294956096 18446744073709551615 134598625 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 18714 3482 186 144 0 18198 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 74856

[startup+12.7013 s]
/proc/loadavg: 1.93 1.98 1.99 3/84 28184
/proc/meminfo: memFree=1037248/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=74856 CPUtime=12.56
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 3807 0 0 0 1155 101 0 0 25 0 1 0 24803045 76652544 3482 996147200 134512640 135105188 4294956096 18446744073709551615 134684654 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 18714 3482 186 144 0 18198 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 74856

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

[startup+15.9017 s]
/proc/loadavg: 1.94 1.98 1.99 3/84 28184
/proc/meminfo: memFree=1037312/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=74856 CPUtime=15.73
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 3807 0 0 0 1472 101 0 0 25 0 1 0 24803045 76652544 3482 996147200 134512640 135105188 4294956096 18446744073709551615 134572102 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 18714 3482 186 144 0 18198 0
Current children cumulated CPU time (s) 15.73
Current children cumulated vsize (KiB) 74856

[startup+17.5019 s]
/proc/loadavg: 1.94 1.98 1.99 3/84 28184
/proc/meminfo: memFree=1037312/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=74856 CPUtime=17.32
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 3807 0 0 0 1631 101 0 0 25 0 1 0 24803045 76652544 3482 996147200 134512640 135105188 4294956096 18446744073709551615 134684359 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 18714 3482 186 144 0 18198 0
Current children cumulated CPU time (s) 17.32
Current children cumulated vsize (KiB) 74856

[startup+18.302 s]
/proc/loadavg: 1.94 1.98 1.99 3/84 28184
/proc/meminfo: memFree=1037312/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=74856 CPUtime=18.11
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 3807 0 0 0 1710 101 0 0 25 0 1 0 24803045 76652544 3482 996147200 134512640 135105188 4294956096 18446744073709551615 134684416 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 18714 3482 186 144 0 18198 0
Current children cumulated CPU time (s) 18.11
Current children cumulated vsize (KiB) 74856

[startup+18.7061 s]
/proc/loadavg: 1.94 1.98 1.99 3/84 28184
/proc/meminfo: memFree=1037312/2055920 swapFree=4192812/4192956
[pid=28183] ppid=28181 vsize=74856 CPUtime=18.51
/proc/28183/stat : 28183 (bprolog) R 28181 28183 27770 0 -1 4194304 3807 0 0 0 1750 101 0 0 25 0 1 0 24803045 76652544 3482 996147200 134512640 135105188 4294956096 18446744073709551615 134684308 0 0 4096 2 0 0 0 17 1 0 0
/proc/28183/statm: 18714 3482 186 144 0 18198 0
Current children cumulated CPU time (s) 18.51
Current children cumulated vsize (KiB) 74856

Child status: 0
Real time (s): 18.7968
CPU time (s): 18.6112
CPU user time (s): 17.5903
CPU system time (s): 1.02084
CPU usage (%): 99.0124
Max. virtual memory (cumulated for all children) (KiB): 74856

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.5903
system time used= 1.02084
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3810
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= 818

runsolver used 0.023996 second user time and 0.073988 second system time

The end

Launcher Data 

Begin job on node40 at 2009-07-12 08:45:18
IDJOB=2085121
IDBENCH=58289
IDSOLVER=770
FILE ID=node40/2085121-1247381117
PBS_JOBID= 9507204
Free space on /tmp= 66252 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/graphColoring/leighton/leighton-15/normalized-lei450-15c-13.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2085121-1247381117/watcher-2085121-1247381117 -o /tmp/evaluation-result-2085121-1247381117/solver-2085121-1247381117 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2085121-1247381117 1800

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

MD5SUM BENCH= 2e2238613188c0f9e19f75fabae3049a
RANDOM SEED=484212255

node40.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		: 3000.213
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		: 3000.213
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:       1052072 kB
Buffers:         88464 kB
Cached:         758884 kB
SwapCached:          0 kB
Active:         268896 kB
Inactive:       655168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1052072 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3380 kB
Writeback:           0 kB
Mapped:          97412 kB
Slab:            64556 kB
Committed_AS:   294300 kB
PageTables:       2044 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66252 MiB
End job on node40 at 2009-07-12 08:45:36