Trace number 199216

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, and are wall clock time (not CPU 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
VALCSP 3.0UNSAT 16.8634 17.0289

DiagnosticValue
CHECKS1131150000
NODES0

General information on the benchmark

Nameknights/
knights-25-9.xml
MD5SUMff6db571c9963ef273115b40e7595a31
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 benchmark2.28265
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36
Global constraints used (with number of constraints)

Solver Data (download as text)

17.01	s UNSATISFIABLE
17.01	d CHECKS 1.13115e+09
17.01	d NODES 0
17.01

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node9/watcher-199216-1168132974 -o ROOT/results/node9/solver-199216-1168132974 -C 1800 -M 900 /tmp/evaluation/199216-1168132974/VALCSP /tmp/evaluation/199216-1168132974/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 2.00 2.01 2.00 5/94 3613
/proc/meminfo: memFree=1007448/2055920 swapFree=4191880/4192956
[pid=3612] ppid=3610 vsize=2788 CPUtime=0
/proc/3612/stat : 3612 (VALCSP) R 3610 3612 2852 0 -1 4194304 440 0 0 0 0 0 0 0 21 0 1 0 161692580 2854912 418 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 9098875 0 0 4096 0 0 0 0 17 1 0 0
/proc/3612/statm: 697 418 64 8 0 369 0

[startup+0.105545 s]
/proc/loadavg: 2.00 2.01 2.00 5/94 3613
/proc/meminfo: memFree=1007448/2055920 swapFree=4191880/4192956
[pid=3612] ppid=3610 vsize=3052 CPUtime=0.09
/proc/3612/stat : 3612 (VALCSP) R 3610 3612 2852 0 -1 4194304 513 0 0 0 9 0 0 0 21 0 1 0 161692580 3125248 491 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/3612/statm: 763 491 64 8 0 435 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3052

[startup+0.513591 s]
/proc/loadavg: 2.00 2.01 2.00 5/94 3613
/proc/meminfo: memFree=1007448/2055920 swapFree=4191880/4192956
[pid=3612] ppid=3610 vsize=6088 CPUtime=0.49
/proc/3612/stat : 3612 (VALCSP) R 3610 3612 2852 0 -1 4194304 1279 0 0 0 49 0 0 0 25 0 1 0 161692580 6234112 1257 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/3612/statm: 1522 1257 64 8 0 1194 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 6088

[startup+1.33569 s]
/proc/loadavg: 2.00 2.01 2.00 3/94 3613
/proc/meminfo: memFree=998168/2055920 swapFree=4191880/4192956
[pid=3612] ppid=3610 vsize=12292 CPUtime=1.31
/proc/3612/stat : 3612 (VALCSP) R 3610 3612 2852 0 -1 4194304 2810 0 0 0 130 1 0 0 25 0 1 0 161692580 12587008 2788 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/3612/statm: 3073 2788 64 8 0 2745 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 12292

[startup+2.98087 s]
/proc/loadavg: 2.00 2.01 2.00 3/94 3613
/proc/meminfo: memFree=987800/2055920 swapFree=4191880/4192956
[pid=3612] ppid=3610 vsize=24436 CPUtime=2.94
/proc/3612/stat : 3612 (VALCSP) R 3610 3612 2852 0 -1 4194304 5873 0 0 0 292 2 0 0 25 0 1 0 161692580 25022464 5851 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/3612/statm: 6109 5851 64 8 0 5781 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 24436

[startup+6.26024 s]
/proc/loadavg: 2.00 2.01 2.00 3/94 3613
/proc/meminfo: memFree=959832/2055920 swapFree=4191880/4192956
[pid=3612] ppid=3610 vsize=47404 CPUtime=6.18
/proc/3612/stat : 3612 (VALCSP) R 3610 3612 2852 0 -1 4194304 11616 0 0 0 614 4 0 0 25 0 1 0 161692580 48541696 11594 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530492 0 0 4096 0 0 0 0 17 1 0 0
/proc/3612/statm: 11851 11594 64 8 0 11523 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 47404

[startup+12.728 s]
/proc/loadavg: 2.00 2.01 2.00 3/94 3613
/proc/meminfo: memFree=940760/2055920 swapFree=4191880/4192956
[pid=3612] ppid=3610 vsize=56644 CPUtime=12.59
/proc/3612/stat : 3612 (VALCSP) R 3610 3612 2852 0 -1 4194304 13919 0 0 0 1254 5 0 0 25 0 1 0 161692580 58003456 13897 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524787 0 0 4096 0 0 0 0 17 1 0 0
/proc/3612/statm: 14161 13897 66 8 0 13833 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 56644

Child status: 0
Real time (s): 17.0289
CPU time (s): 16.8634
CPU user time (s): 16.7964
CPU system time (s): 0.066989
CPU usage (%): 99.0283
Max. virtual memory (cumulated for all children) (KiB): 56644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.7964
system time used= 0.066989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13948
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= 8
involuntary context switches= 682

runsolver used 0.022996 s user time and 0.06099 s system time

The end

Launcher Data (download as text)

Begin job on node9 on Sun Jan  7 01:22:54 UTC 2007


IDJOB= 199216
IDBENCH= 3600
FILE ID= node9/199216-1168132974

PBS_JOBID= 3477727

Free space on /tmp= 65979 MiB

BENCH NAME= HOME/pub/bench/CPAI06/knights/knights-25-9.xml
COMMAND LINE= /tmp/evaluation/199216-1168132974/VALCSP /tmp/evaluation/199216-1168132974/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-199216-1168132974 -o ROOT/results/node9/solver-199216-1168132974 -C 1800 -M 900  /tmp/evaluation/199216-1168132974/VALCSP /tmp/evaluation/199216-1168132974/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  ff6db571c9963ef273115b40e7595a31

RANDOM SEED= 167024914

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.231
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		: 3000.231
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:       1009144 kB
Buffers:         53992 kB
Cached:         800156 kB
SwapCached:        408 kB
Active:         484604 kB
Inactive:       492664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1009144 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:          106380 kB
Writeback:           0 kB
Mapped:         143548 kB
Slab:            54000 kB
Committed_AS:  4972704 kB
PageTables:       2540 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= 65963 MiB



End job on node9 on Sun Jan  7 01:23:12 UTC 2007