Trace number 218960

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
galac 1UNSAT 2.49662 2.54953

General information on the benchmark

NamechessboardColoration/
cc-8-8-2.xml
MD5SUM4cb14a14b9ffd06a9e1ae9114d8e69f5
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.12498
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables64
Number of constraints784
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension784
Global constraints used (with number of constraints)

Solver Data (download as text)

0.03	c --- Preproc Stats ---
1.49	c start processing
1.49	c start relation processing
1.52	c start cnf exporting
2.34	c parsing time : 1.327
2.34	c preprocessing time : 2.173
2.34	
2.34	c Nary constraints - conflicts : 784 supports : 0
2.34	c Binary constraints - conflicts : 0 supports :0
2.34	c max arity constraint : 4
2.34	c Max Tuples generated 16
2.34	c relations : 1
2.34	c relations BDD: 1
2.34	c vars : 6337 - clauses :  18816
2.34	
2.38	 
2.38	c --- Minisat Stats ---
2.38	 
2.54	c restarts              : 6
2.54	c conflicts             : 1367           (8337 /sec)
2.54	c decisions             : 1588           (1.57 % random) (9684 /sec)
2.54	c propagations          : 809506         (4936765 /sec)
2.54	c conflict literals     : 9398           (30.26 % deleted)
2.54	c Memory used           : 2.91 MB
2.54	c CPU time              : 0.163975 s
2.54	
2.54	s UNSATISFIABLE

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/node72/watcher-218960-1168253765 -o ROOT/results/node72/solver-218960-1168253765 -C 1800 -M 900 /tmp/evaluation/218960-1168253765/galac.sh /tmp/evaluation/218960-1168253765/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: 2.34 2.62 2.54 3/95 19328
/proc/meminfo: memFree=1387792/2055920 swapFree=4191880/4192956
[pid=19327] ppid=19325 vsize=5244 CPUtime=0
/proc/19327/stat : 19327 (galac.sh) R 19325 19327 18468 0 -1 4194304 162 0 0 0 0 0 0 0 20 0 1 0 173785421 5369856 127 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 234517921582 0 0 4096 0 0 0 0 17 1 0 0
/proc/19327/statm: 1311 127 92 79 0 115 0

[startup+0.103796 s]
/proc/loadavg: 2.34 2.62 2.54 3/95 19328
/proc/meminfo: memFree=1387792/2055920 swapFree=4191880/4192956
[pid=19327] ppid=19325 vsize=47560 CPUtime=0.01
/proc/19327/stat : 19327 (galac.sh) S 19325 19327 18468 0 -1 4194304 763 1704 0 0 0 0 0 1 18 0 1 0 173785421 48701440 365 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 234517359450 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/19327/statm: 11890 365 247 79 0 218 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47560

[startup+0.51584 s]
/proc/loadavg: 2.34 2.62 2.54 3/95 19328
/proc/meminfo: memFree=1387792/2055920 swapFree=4191880/4192956
[pid=19327] ppid=19325 vsize=47560 CPUtime=0.01
/proc/19327/stat : 19327 (galac.sh) S 19325 19327 18468 0 -1 4194304 763 1704 0 0 0 0 0 1 18 0 1 0 173785421 48701440 365 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 234517359450 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/19327/statm: 11890 365 247 79 0 218 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47560

[startup+1.33791 s]
/proc/loadavg: 2.34 2.62 2.54 4/103 19348
/proc/meminfo: memFree=1344712/2055920 swapFree=4191880/4192956
[pid=19327] ppid=19325 vsize=47560 CPUtime=0.01
/proc/19327/stat : 19327 (galac.sh) S 19325 19327 18468 0 -1 4194304 763 1704 0 0 0 0 0 1 18 0 1 0 173785421 48701440 365 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 234517359450 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/19327/statm: 11890 365 247 79 0 218 0
[pid=19341] ppid=19327 vsize=861064 CPUtime=1.28
/proc/19341/stat : 19341 (java) R 19327 19327 18468 0 -1 0 14976 0 1 0 119 9 0 0 19 0 8 0 173785425 881729536 14730 18446744073709551615 134512640 134570532 4294956112 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/19341/statm: 215266 14730 1991 14 0 201471 0
[pid=19341/tid=19342] ppid=19327 vsize=861064 CPUtime=0.04
/proc/19341/task/19342/stat : 19342 (java) S 19327 19327 18468 0 -1 64 3348 0 0 0 3 1 0 0 16 0 8 0 173785429 881729536 14730 18446744073709551615 134512640 134570532 4294956112 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=19341/tid=19343] ppid=19327 vsize=861064 CPUtime=0
/proc/19341/task/19343/stat : 19343 (java) S 19327 19327 18468 0 -1 64 12 0 0 0 0 0 0 0 15 0 8 0 173785429 881729536 14730 18446744073709551615 134512640 134570532 4294956112 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19341/tid=19344] ppid=19327 vsize=861064 CPUtime=0
/proc/19341/task/19344/stat : 19344 (java) S 19327 19327 18468 0 -1 64 7 0 0 0 0 0 0 0 15 0 8 0 173785429 881729536 14730 18446744073709551615 134512640 134570532 4294956112 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19341/tid=19345] ppid=19327 vsize=861064 CPUtime=0
/proc/19341/task/19345/stat : 19345 (java) S 19327 19327 18468 0 -1 64 2 0 0 0 0 0 0 0 18 0 8 0 173785433 881729536 14730 18446744073709551615 134512640 134570532 4294956112 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19341/tid=19346] ppid=19327 vsize=861064 CPUtime=0.25
/proc/19341/task/19346/stat : 19346 (java) R 19327 19327 18468 0 -1 64 988 0 0 0 23 2 0 0 17 0 8 0 173785433 881729536 14730 18446744073709551615 134512640 134570532 4294956112 18446744073709551615 4152975870 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19341/tid=19347] ppid=19327 vsize=861064 CPUtime=0
/proc/19341/task/19347/stat : 19347 (java) S 19327 19327 18468 0 -1 64 0 0 0 0 0 0 0 0 19 0 8 0 173785433 881729536 14730 18446744073709551615 134512640 134570532 4294956112 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19341/tid=19348] ppid=19327 vsize=861064 CPUtime=0
/proc/19341/task/19348/stat : 19348 (java) S 19327 19327 18468 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 173785433 881729536 14730 18446744073709551615 134512640 134570532 4294956112 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 908624

Child status: 0
Real time (s): 2.54953
CPU time (s): 2.49662
CPU user time (s): 2.33065
CPU system time (s): 0.165974
CPU usage (%): 97.9247
Max. virtual memory (cumulated for all children) (KiB): 908756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.33065
system time used= 0.165974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 22620
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= 1237
involuntary context switches= 1227

runsolver used 0.003999 s user time and 0.014997 s system time

The end

Launcher Data (download as text)

Begin job on node72 on Mon Jan  8 10:56:06 UTC 2007


IDJOB= 218960
IDBENCH= 5269
FILE ID= node72/218960-1168253765

PBS_JOBID= 3481919

Free space on /tmp= 66554 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-8-8-2.xml
COMMAND LINE= /tmp/evaluation/218960-1168253765/galac.sh /tmp/evaluation/218960-1168253765/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node72/watcher-218960-1168253765 -o ROOT/results/node72/solver-218960-1168253765 -C 1800 -M 900  /tmp/evaluation/218960-1168253765/galac.sh /tmp/evaluation/218960-1168253765/unknown.xml

META MD5SUM SOLVER= d8bf20eb49fe33822f00bab08f33d7fc
MD5SUM BENCH=  4cb14a14b9ffd06a9e1ae9114d8e69f5

RANDOM SEED= 114507951

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		: 3000.223
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		: 3000.223
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:       1388272 kB
Buffers:         50636 kB
Cached:         299772 kB
SwapCached:        268 kB
Active:         339604 kB
Inactive:       261748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1388272 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            3116 kB
Writeback:           0 kB
Mapped:         277284 kB
Slab:            50532 kB
Committed_AS:  4095084 kB
PageTables:       2768 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= 66554 MiB



End job on node72 on Mon Jan  8 10:56:09 UTC 2007