Trace number 2086045

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 0.201969 0.209172

General information on the benchmark

Namecsp/pigeons/
normalized-pigeons-45.xml
MD5SUM409713f0907deb90e5b6d3eb261bf623
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 benchmark0.034994
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of constraints990
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension990
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-2086045-1247383170)
0.08/0.13	c Converted in 49 ms
0.08/0.14	c solving(HOME/instance-2086045-1247383170,1800000)
0.08/0.14	c solving(HOME/instance-2086045-1247383170,1800000)
0.19/0.20	c before_labeling
0.19/0.20	s UNSATISFIABLE
0.19/0.20	
0.19/0.20	
0.19/0.20	c Time=73 ms Backtracks=0
0.19/0.20

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-2086045-1247383170/watcher-2086045-1247383170 -o /tmp/evaluation-result-2086045-1247383170/solver-2086045-1247383170 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2086045-1247383170 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 4/81 26806
/proc/meminfo: memFree=1862016/2055920 swapFree=4192812/4192956
[pid=26806] ppid=26804 vsize=18576 CPUtime=0
/proc/26806/stat : 26806 (runsolver) R 26804 26806 26742 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 25380097 19021824 284 996147200 4194304 4302564 548682068528 18446744073709551615 226238197031 0 0 4096 24578 0 0 0 17 1 0 0
/proc/26806/statm: 4644 284 249 26 0 2626 0

[startup+0.033641 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 26806
/proc/meminfo: memFree=1862016/2055920 swapFree=4192812/4192956
[pid=26806] ppid=26804 vsize=62208 CPUtime=0.01
/proc/26806/stat : 26806 (bprolog) R 26804 26806 26742 0 -1 4194304 1100 0 0 0 1 0 0 0 20 0 1 0 25380097 63700992 813 996147200 134512640 135105188 4294956096 18446744073709551615 134676158 0 0 4096 2 0 0 0 17 1 0 0
/proc/26806/statm: 15552 813 177 144 0 15036 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 62208

[startup+0.101651 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 26806
/proc/meminfo: memFree=1862016/2055920 swapFree=4192812/4192956
[pid=26806] ppid=26804 vsize=62208 CPUtime=0.08
/proc/26806/stat : 26806 (bprolog) R 26804 26806 26742 0 -1 4194304 1102 0 0 0 4 4 0 0 20 0 1 0 25380097 63700992 815 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/26806/statm: 15552 815 177 144 0 15036 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 62208

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

[startup+0.201656 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 26806
/proc/meminfo: memFree=1862016/2055920 swapFree=4192812/4192956
[pid=26806] ppid=26804 vsize=62200 CPUtime=0.19
/proc/26806/stat : 26806 (bprolog) R 26804 26806 26742 0 -1 4194304 1399 0 0 0 13 6 0 0 21 0 1 0 25380097 63692800 1109 996147200 134512640 135105188 4294956096 18446744073709551615 134684311 0 0 4096 2 0 0 0 17 1 0 0
/proc/26806/statm: 15550 1109 185 144 0 15034 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 62200

Child status: 0
Real time (s): 0.209172
CPU time (s): 0.201969
CPU user time (s): 0.137979
CPU system time (s): 0.06399
CPU usage (%): 96.5564
Max. virtual memory (cumulated for all children) (KiB): 62208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.137979
system time used= 0.06399
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1424
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= 3
involuntary context switches= 38

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node58 at 2009-07-12 09:19:30
IDJOB=2086045
IDBENCH=58551
IDSOLVER=770
FILE ID=node58/2086045-1247383170
PBS_JOBID= 9507314
Free space on /tmp= 66312 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/pigeons/normalized-pigeons-45.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086045-1247383170/watcher-2086045-1247383170 -o /tmp/evaluation-result-2086045-1247383170/solver-2086045-1247383170 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2086045-1247383170 1800

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

MD5SUM BENCH= 409713f0907deb90e5b6d3eb261bf623
RANDOM SEED=1104315306

node58.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		: 3000.234
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		: 3000.234
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:       1862496 kB
Buffers:         10884 kB
Cached:          62692 kB
SwapCached:          0 kB
Active:         123880 kB
Inactive:        18600 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1862496 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1572 kB
Writeback:           0 kB
Mapped:          89288 kB
Slab:            36032 kB
Committed_AS:   282388 kB
PageTables:       1884 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= 66312 MiB
End job on node58 at 2009-07-12 09:19:30