Trace number 221729

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
Tramontane 2006-12-04SAT 13.383 13.388

General information on the benchmark

Namerandom/rand-2-24/
rand-24-24-276-139-48021_ext.xml
MD5SUM23b670d8c9599bc75edae4d191ae20d2
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark9.90849
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables24
Number of constraints276
Maximum constraint arity2
Maximum domain size24
Number of constraints which are defined in extension276
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	c 	variables.............    0
0.01	c 	relations............. 0.08
0.08	c 	constraints...........    0
0.09	c Allocating memory
0.09	c 
0.09	c time limit = -1
0.09	c heuristic = dom/wdeg
0.09	c restart policy = Geometric increment
0.09	c restart base = 15
0.09	c restart factor = 1.33
0.09	c 
0.09	c Solving
0.09	c
13.38	s SATISFIABLE
13.38	v 4 4 21 13 5 7 19 6 14 0 0 1 15 23 8 16 2 0 20 10 16 6 19 16
13.38	d          SAT     51777 BTS        13 s

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/node14/watcher-221729-1168261428 -o ROOT/results/node14/solver-221729-1168261428 -C 1800 -M 900 /tmp/evaluation/221729-1168261428/tramontane/bin/solver /tmp/evaluation/221729-1168261428/unknown.xml -res geom -f 3 -v 1 

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: 0.92 1.14 1.48 4/78 25726
/proc/meminfo: memFree=1782024/2055920 swapFree=4182236/4192956
[pid=25725] ppid=25723 vsize=6792 CPUtime=0
/proc/25725/stat : 25725 (solver) R 25723 25725 24455 0 -1 4194304 420 0 0 0 0 0 0 0 18 0 1 0 174537805 6955008 399 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 6896516 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 1698 400 363 92 0 30 0

[startup+0.103094 s]
/proc/loadavg: 0.92 1.14 1.48 4/78 25726
/proc/meminfo: memFree=1782024/2055920 swapFree=4182236/4192956
[pid=25725] ppid=25723 vsize=7840 CPUtime=0.09
/proc/25725/stat : 25725 (solver) R 25723 25725 24455 0 -1 4194304 1062 0 0 0 9 0 0 0 18 0 1 0 174537805 8028160 1030 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134790642 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 1960 1030 710 92 0 304 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7840

[startup+0.511132 s]
/proc/loadavg: 0.92 1.14 1.48 4/78 25726
/proc/meminfo: memFree=1782024/2055920 swapFree=4182236/4192956
[pid=25725] ppid=25723 vsize=7840 CPUtime=0.5
/proc/25725/stat : 25725 (solver) R 25723 25725 24455 0 -1 4194304 1062 0 0 0 50 0 0 0 22 0 1 0 174537805 8028160 1030 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134637569 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 1960 1030 710 92 0 304 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7840

[startup+1.33121 s]
/proc/loadavg: 0.92 1.14 1.48 2/78 25726
/proc/meminfo: memFree=1780744/2055920 swapFree=4182236/4192956
[pid=25725] ppid=25723 vsize=7840 CPUtime=1.32
/proc/25725/stat : 25725 (solver) R 25723 25725 24455 0 -1 4194304 1062 0 0 0 132 0 0 0 25 0 1 0 174537805 8028160 1030 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134790664 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 1960 1030 710 92 0 304 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 7840

[startup+2.96736 s]
/proc/loadavg: 0.93 1.14 1.48 3/78 25726
/proc/meminfo: memFree=1780744/2055920 swapFree=4182236/4192956
[pid=25725] ppid=25723 vsize=7840 CPUtime=2.96
/proc/25725/stat : 25725 (solver) R 25723 25725 24455 0 -1 4194304 1062 0 0 0 296 0 0 0 25 0 1 0 174537805 8028160 1030 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134790434 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 1960 1030 710 92 0 304 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 7840

[startup+6.24868 s]
/proc/loadavg: 0.93 1.14 1.48 2/78 25726
/proc/meminfo: memFree=1780624/2055920 swapFree=4182236/4192956
[pid=25725] ppid=25723 vsize=7840 CPUtime=6.24
/proc/25725/stat : 25725 (solver) R 25723 25725 24455 0 -1 4194304 1062 0 0 0 624 0 0 0 25 0 1 0 174537805 8028160 1030 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134790767 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 1960 1030 710 92 0 304 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 7840

[startup+12.6993 s]
/proc/loadavg: 0.94 1.14 1.47 2/78 25726
/proc/meminfo: memFree=1780664/2055920 swapFree=4182236/4192956
[pid=25725] ppid=25723 vsize=7840 CPUtime=12.69
/proc/25725/stat : 25725 (solver) R 25723 25725 24455 0 -1 4194304 1062 0 0 0 1269 0 0 0 25 0 1 0 174537805 8028160 1030 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134785579 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 1960 1030 710 92 0 304 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7840

Child status: 0
Real time (s): 13.388
CPU time (s): 13.383
CPU user time (s): 13.377
CPU system time (s): 0.005999
CPU usage (%): 99.9622
Max. virtual memory (cumulated for all children) (KiB): 7840

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.377
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1070
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= 13
involuntary context switches= 293

runsolver used 0.012998 s user time and 0.040993 s system time

The end

Launcher Data (download as text)

Begin job on node14 on Mon Jan  8 13:03:49 UTC 2007


IDJOB= 221729
IDBENCH= 5465
FILE ID= node14/221729-1168261428

PBS_JOBID= 3482423

Free space on /tmp= 66343 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-24/rand-24-24-276-139-48021_ext.xml
COMMAND LINE= /tmp/evaluation/221729-1168261428/tramontane/bin/solver /tmp/evaluation/221729-1168261428/unknown.xml -res geom -f 3 -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-221729-1168261428 -o ROOT/results/node14/solver-221729-1168261428 -C 1800 -M 900  /tmp/evaluation/221729-1168261428/tramontane/bin/solver /tmp/evaluation/221729-1168261428/unknown.xml -res geom -f 3 -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  23b670d8c9599bc75edae4d191ae20d2

RANDOM SEED= 563872309

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
ste