Trace number 1105889

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
Minion/Tailor 2008-07-04UNSAT 6.19852 3.20545

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-10.xml
MD5SUMd438b1553ec5710c6f35b3a8e61b7288
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 benchmark1.19182
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints200
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension200
Global constraints used (with number of constraints)

Solver Data (download as text)

0.38/0.47	c Finished tailoring XCSP instance to Minion. Starting solving
3.04/3.20	s UNSATISFIABLE

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-1105889-1215230380/watcher-1105889-1215230380 -o /tmp/evaluation-result-1105889-1215230380/solver-1105889-1215230380 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solve.sh HOME/instance-1105889-1215230380.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): 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: 2.40 2.29 2.17 4/81 4000
/proc/meminfo: memFree=1384952/2055920 swapFree=4192812/4192956
[pid=4000] ppid=3998 vsize=5356 CPUtime=0
/proc/4000/stat : 4000 (solve.sh) S 3998 4000 2756 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 134708118 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4000/statm: 1339 235 195 169 0 50 0
[pid=4001] ppid=4000 vsize=308 CPUtime=0
/proc/4001/stat : 4001 (java) R 4000 4000 2756 0 -1 0 236 0 0 0 0 0 0 0 18 0 1 0 134708118 315392 39 996147200 134512640 134550740 4294956032 18446744073709551615 10687268 0 0 4096 0 0 0 0 17 1 0 0
/proc/4001/statm: 77 41 31 9 0 6 0

[startup+0.085615 s]
/proc/loadavg: 2.40 2.29 2.17 4/81 4000
/proc/meminfo: memFree=1384952/2055920 swapFree=4192812/4192956
[pid=4000] ppid=3998 vsize=5356 CPUtime=0
/proc/4000/stat : 4000 (solve.sh) S 3998 4000 2756 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 134708118 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4000/statm: 1339 235 195 169 0 50 0
[pid=4001] ppid=4000 vsize=864136 CPUtime=0.07
/proc/4001/stat : 4001 (java) S 4000 4000 2756 0 -1 0 3421 0 1 0 6 1 0 0 18 0 9 0 134708118 884875264 2875 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/4001/statm: 216034 2875 1702 9 0 210596 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 869492

[startup+0.101614 s]
/proc/loadavg: 2.40 2.29 2.17 4/81 4000
/proc/meminfo: memFree=1384952/2055920 swapFree=4192812/4192956
[pid=4000] ppid=3998 vsize=5356 CPUtime=0
/proc/4000/stat : 4000 (solve.sh) S 3998 4000 2756 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 134708118 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4000/statm: 1339 235 195 169 0 50 0
[pid=4001] ppid=4000 vsize=864136 CPUtime=0.08
/proc/4001/stat : 4001 (java) S 4000 4000 2756 0 -1 0 3525 0 1 0 7 1 0 0 18 0 9 0 134708118 884875264 2977 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/4001/statm: 216034 2977 1728 9 0 210596 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 869492

[startup+0.301635 s]
/proc/loadavg: 2.40 2.29 2.17 4/81 4000
/proc/meminfo: memFree=1384952/2055920 swapFree=4192812/4192956
[pid=4000] ppid=3998 vsize=5356 CPUtime=0
/proc/4000/stat : 4000 (solve.sh) S 3998 4000 2756 0 -1 4194304 285 0 0 0 0 0 0 0 21 0 1 0 134708118 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4000/statm: 1339 235 195 169 0 50 0
[pid=4001] ppid=4000 vsize=865000 CPUtime=0.28
/proc/4001/stat : 4001 (java) S 4000 4000 2756 0 -1 0 4384 0 1 0 26 2 0 0 18 0 9 0 134708118 885760000 3812 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/4001/statm: 216250 3812 1840 9 0 210812 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 870356

[startup+0.701677 s]
/proc/loadavg: 2.40 2.29 2.17 4/81 4000
/proc/meminfo: memFree=1384952/2055920 swapFree=4192812/4192956
[pid=4000] ppid=3998 vsize=5360 CPUtime=0.43
/proc/4000/stat : 4000 (solve.sh) S 3998 4000 2756 0 -1 4194304 310 6530 0 1 0 0 39 4 17 0 1 0 134708118 5488640 236 996147200 4194304 4889804 548682068832 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4000/statm: 1340 236 195 169 0 51 0
Current children cumulated CPU time (s) 0.43
Current children cumulated vsize (KiB) 5360

[startup+1.50176 s]
/proc/loadavg: 2.40 2.29 2.17 3/83 4011
/proc/meminfo: memFree=1383400/2055920 swapFree=4192812/4192956
[pid=4000] ppid=3998 vsize=5360 CPUtime=0.43
/proc/4000/stat : 4000 (solve.sh) S 3998 4000 2756 0 -1 4194304 310 6530 0 1 0 0 39 4 17 0 1 0 134708118 5488640 236 996147200 4194304 4889804 548682068832 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4000/statm: 1340 236 195 169 0 51 0
[pid=4011] ppid=4000 vsize=24036 CPUtime=1.02
/proc/4011/stat : 4011 (ld-linux.so.2) R 4000 4000 2756 0 -1 4194304 500 0 0 0 102 0 0 0 25 0 1 100 134708165 24612864 482 996147200 1448431616 1448550632 4294956176 18446744073709551615 134670254 0 0 4096 8194 0 0 0 17 1 0 0
/proc/4011/statm: 6009 482 419 29 0 63 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 29396

[startup+3.10292 s]
/proc/loadavg: 2.40 2.29 2.17 3/83 4011
/proc/meminfo: memFree=1382248/2055920 swapFree=4192812/4192956
[pid=4000] ppid=3998 vsize=5360 CPUtime=0.43
/proc/4000/stat : 4000 (solve.sh) S 3998 4000 2756 0 -1 4194304 310 6530 0 1 0 0 39 4 17 0 1 0 134708118 5488640 236 996147200 4194304 4889804 548682068832 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4000/statm: 1340 236 195 169 0 51 0
[pid=4011] ppid=4000 vsize=24036 CPUtime=2.61
/proc/4011/stat : 4011 (ld-linux.so.2) R 4000 4000 2756 0 -1 4194304 500 0 0 0 261 0 0 0 25 0 1 100 134708165 24612864 482 996147200 1448431616 1448550632 4294956176 18446744073709551615 152107361 0 0 4096 8194 0 0 0 17 1 0 0
/proc/4011/statm: 6009 482 419 29 0 63 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 29396

[startup+3.10292 s]
/proc/loadavg: 2.40 2.29 2.17 3/83 4011
/proc/meminfo: memFree=1382248/2055920 swapFree=4192812/4192956
[pid=4000] ppid=3998 vsize=5360 CPUtime=0.43
/proc/4000/stat : 4000 (solve.sh) S 3998 4000 2756 0 -1 4194304 310 6530 0 1 0 0 39 4 17 0 1 0 134708118 5488640 236 996147200 4194304 4889804 548682068832 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4000/statm: 1340 236 195 169 0 51 0
[pid=4011] ppid=4000 vsize=24036 CPUtime=2.61
/proc/4011/stat : 4011 (ld-linux.so.2) R 4000 4000 2756 0 -1 4194304 500 0 0 0 261 0 0 0 25 0 1 100 134708165 24612864 482 996147200 1448431616 1448550632 4294956176 18446744073709551615 152107361 0 0 4096 8194 0 0 0 17 1 0 0
/proc/4011/statm: 6009 482 419 29 0 63 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 29396

# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (3.04 s)
# The time of a child was probably not reported to its father.
# (see the samples just above and below)
# Adding the difference (3.04 s) to the 'lost time'.

[startup+3.20293 s]
/proc/loadavg: 2.40 2.29 2.17 3/83 4011
/proc/meminfo: memFree=1381224/2055920 swapFree=4192812/4192956
[pid=4000] ppid=-1 vsize=0 CPUtime=0
/proc/4000/stat : -- couldn't open stat file --/proc/4000/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

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

[startup+3.20293 s]
/proc/loadavg: 2.40 2.29 2.17 3/83 4011
/proc/meminfo: memFree=1381224/2055920 swapFree=4192812/4192956
[pid=4000] ppid=-1 vsize=0 CPUtime=0
/proc/4000/stat : -- couldn't open stat file --/proc/4000/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 0

# WARNING:
# The CPU time of some children was not reported to their father
# (probably because of a missing or aborted wait()).
# This 'lost CPU time' is added to the watched process CPU time.
#  lost CPU time (s): 3.04
#  lost CPU user time (s): 3
#  lost CPU system time (s): 0.04

Real time (s): 3.20545
CPU time (s): 6.19852
CPU user time (s): 6.11153
CPU system time (s): 0.086992
CPU usage (%): 193.374
Max. virtual memory (cumulated for all children) (KiB): 870800

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.11153
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7364
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 437
involuntary context switches= 414

runsolver used 0.003999 second user time and 0.020996 second system time

The end

Launcher Data (download as text)

Begin job on node27 at 2008-07-05 05:59:40
IDJOB=1105889
IDBENCH=57556
IDSOLVER=369
FILE ID=node27/1105889-1215230380
PBS_JOBID= 7881844
Free space on /tmp= 66432 MiB

SOLVER NAME= Minion/Tailor 2008-07-04
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-10.xml
COMMAND LINE= DIR/solve.sh BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1105889-1215230380/watcher-1105889-1215230380 -o /tmp/evaluation-result-1105889-1215230380/solver-1105889-1215230380 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solve.sh HOME/instance-1105889-1215230380.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d438b1553ec5710c6f35b3a8e61b7288
RANDOM SEED=168202919

node27.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		: 2800.188
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	: 5521.40
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		: 2800.188
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:       1385496 kB
Buffers:         94076 kB
Cached:         405248 kB
SwapCached:          0 kB
Active:         297652 kB
Inactive:       294404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1385496 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           57112 kB
Writeback:           0 kB
Mapped:         112096 kB
Slab:            63704 kB
Committed_AS:  1100204 kB
PageTables:       1776 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66400 MiB
End job on node27 at 2008-07-05 05:59:43