Trace number 242930

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 1SAT 0.932858 1.02171

General information on the benchmark

Namedimacs/aim-50/
aim-50-1-6-sat-3_ext.xml
MD5SUM4ddf9fbba30402f0d21e02cca1191837
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
SatisfiableYES
(Un)Satisfiability was proved
Number of variables50
Number of constraints78
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension78
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.03	c --- Preproc Stats ---
0.46	c start processing
0.46	c start relation processing
0.46	c start cnf exporting
0.52	c parsing time : 0.305
0.52	c preprocessing time : 0.368
0.52	
0.52	c Nary constraints - conflicts : 76 supports : 0
0.52	c Binary constraints - conflicts : 2 supports :0
0.52	c max arity constraint : 3
0.52	c Max Tuples generated 0
0.52	c relations : 12
0.52	c relations BDD: 0
0.52	c vars : 51 - clauses :  80
0.52	
0.57	 
0.57	c --- Minisat Stats ---
0.57	 
0.57	c restarts              : 1
0.57	c conflicts             : 6              (6006 /sec)
0.57	c decisions             : 35             (0.00 % random) (35035 /sec)
0.57	c propagations          : 141            (141141 /sec)
0.57	c conflict literals     : 15             (0.00 % deleted)
0.57	c Memory used           : 1.73 MB
0.57	c CPU time              : 0.000999 s
0.57	
0.57	s SATISFIABLE
1.01	v 0 0 1 0 1 0 1 0 0 1 0 0 0 0 0 1 0 0 1 0 0 1 1 1 0 0 0 0 1 1 1 0 1 1 1 0 1 1 0 1 0 1 1 1 1 0 0 0 0 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node5/watcher-242930-1168382977 -o ROOT/results/node5/solver-242930-1168382977 -C 1800 -M 900 /tmp/evaluation/242930-1168382977/galac.sh /tmp/evaluation/242930-1168382977/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: 0.40 0.81 1.00 2/81 16527
/proc/meminfo: memFree=1721088/2055920 swapFree=4192812/4192956
[pid=16526] ppid=16524 vsize=8652 CPUtime=0
/proc/16526/stat : 16526 (galac.sh) R 16524 16526 16006 0 -1 4194304 335 0 0 0 0 0 0 0 17 0 1 0 166912301 8859648 279 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 226913479327 0 65538 4096 73728 0 0 0 17 1 0 0
/proc/16526/statm: 2163 279 207 79 0 156 0
[pid=16528] ppid=16526 vsize=8688 CPUtime=0
/proc/16528/stat : 16528 (galac.sh) R 16526 16526 16006 0 -1 4194368 27 0 0 0 0 0 0 0 17 0 1 0 166912301 8896512 286 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 226913479327 0 65536 4096 73728 0 0 0 17 1 0 0
/proc/16528/statm: 2172 286 209 79 0 165 0
[pid=16529] ppid=16528 vsize=8728 CPUtime=0
/proc/16529/stat : 16529 (galac.sh) R 16528 16526 16006 0 -1 4194368 26 0 0 0 0 0 0 0 20 0 1 0 166912301 8937472 290 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 226913479975 0 0 3674112 73728 0 0 0 17 1 0 0
/proc/16529/statm: 2182 290 209 79 0 175 0

[startup+0.102018 s]
/proc/loadavg: 0.40 0.81 1.00 2/81 16527
/proc/meminfo: memFree=1721088/2055920 swapFree=4192812/4192956
[pid=16526] ppid=16524 vsize=47560 CPUtime=0.01
/proc/16526/stat : 16526 (galac.sh) S 16524 16526 16006 0 -1 4194304 762 1704 0 0 0 0 0 1 18 0 1 0 166912301 48701440 363 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 226913086298 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/16526/statm: 11890 363 245 79 0 218 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47560

[startup+0.510062 s]
/proc/loadavg: 0.40 0.81 1.00 2/81 16527
/proc/meminfo: memFree=1721088/2055920 swapFree=4192812/4192956
[pid=16526] ppid=16524 vsize=47560 CPUtime=0.01
/proc/16526/stat : 16526 (galac.sh) S 16524 16526 16006 0 -1 4194304 762 1704 0 0 0 0 0 1 18 0 1 0 166912301 48701440 363 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 226913086298 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/16526/statm: 11890 363 245 79 0 218 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47560

Child status: 0
Real time (s): 1.02171
CPU time (s): 0.932858
CPU user time (s): 0.814876
CPU system time (s): 0.117982
CPU usage (%): 91.3039
Max. virtual memory (cumulated for all children) (KiB): 47560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.814876
system time used= 0.117982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16502
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 628
involuntary context switches= 99

runsolver used 0.003999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue Jan  9 22:49:38 UTC 2007


IDJOB= 242930
IDBENCH= 7429
FILE ID= node5/242930-1168382977

PBS_JOBID= 3522456

Free space on /tmp= 66556 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/aim-50/aim-50-1-6-sat-3_ext.xml
COMMAND LINE= /tmp/evaluation/242930-1168382977/galac.sh /tmp/evaluation/242930-1168382977/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-242930-1168382977 -o ROOT/results/node5/solver-242930-1168382977 -C 1800 -M 900  /tmp/evaluation/242930-1168382977/galac.sh /tmp/evaluation/242930-1168382977/unknown.xml

META MD5SUM SOLVER= d8bf20eb49fe33822f00bab08f33d7fc
MD5SUM BENCH=  4ddf9fbba30402f0d21e02cca1191837

RANDOM SEED= 521126271

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		: 3000.240
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		: 3000.240
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:       1721504 kB
Buffers:         47592 kB
Cached:         185784 kB
SwapCached:          0 kB
Active:         168064 kB
Inactive:       112708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1721504 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3240 kB
Writeback:           0 kB
Mapped:          66360 kB
Slab:            38816 kB
Committed_AS:  4999632 kB
PageTables:       2008 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= 66556 MiB



End job on node5 on Tue Jan  9 22:49:40 UTC 2007