Trace number 277513

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
aolibpvo 2007-01-17OPTIMUM 0.098984 0.105169

General information on the benchmark

Namedimacs/pret/
pret-60-40_ext.xml
MD5SUM0d74555e44f25386bfce89d3fd5d9a3a
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkMOPT
Best Number of satisfied constraints39
Best CPU time to get the best result obtained on this benchmark1.2918
SatisfiableNO
(Un)Satisfiability was proved
Number of variables60
Number of constraints40
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension40
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.10	
0.10	s SATISFIABLE
0.10	o 37
0.10	v 1 1 0 1 1 0 1 1 0 1 1 1 0 1 1 1 0 1 1 1 0 1 1 1 1 0 1 0 1 1 1 0 1 0 1 1 0 1 1 1 1 1 0 0 0 0 1 1 0 1 1 0 1 0 0 1 1 1 0 0
0.10	s SATISFIABLE
0.10	o 39
0.10	v 1 1 0 1 0 1 1 1 0 0 1 1 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 0 1 1 1 1 0 0 1 1 1 0 1 1 0 1 1 1 1 0 1 1 0 1 1 0 1 0 0 0 1 1 0 1
0.10	o 39
0.10	v 1 1 0 1 0 1 1 1 0 0 1 1 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 0 1 1 1 1 0 0 1 1 1 0 1 1 0 1 1 1 1 0 1 1 0 1 1 0 1 0 0 0 1 1 0 1
0.10	s OPTIMUM FOUND
c 
c 
c 
c conversion script
c 
c 

parsing "/tmp/evaluation/277513-1169268439/unknown.xml" file ... done.
writing "/tmp/evaluation/277513-1169268439/unknown.wcsp" file ... done.

Verifier Data (download as text)

1 unsatisfied constraints, 39 satisfied constraints

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node48/watcher-277513-1169268439 -o ROOT/results/node48/solver-277513-1169268439 -C 2400 -M 900 /tmp/evaluation/277513-1169268439/aolibpvo /tmp/evaluation/277513-1169268439/unknown.wcsp 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 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: 1.65 1.92 1.92 3/80 18032
/proc/meminfo: memFree=1378152/2055920 swapFree=4192812/4192956
[pid=18031] ppid=18029 vsize=2452 CPUtime=0
/proc/18031/stat : 18031 (aolibpvo) R 18029 18031 17782 0 -1 0 156 0 0 0 0 0 0 0 20 0 1 0 275243043 2510848 138 18446744073709551615 134512640 136266365 4294956720 18446744073709551615 135870221 0 0 4096 0 0 0 0 17 1 0 0
/proc/18031/statm: 613 138 120 428 0 182 0

[startup+0.103167 s]
/proc/loadavg: 1.65 1.92 1.92 3/80 18032
/proc/meminfo: memFree=1378152/2055920 swapFree=4192812/4192956
[pid=18031] ppid=18029 vsize=3016 CPUtime=0.09
/proc/18031/stat : 18031 (aolibpvo) R 18029 18031 17782 0 -1 0 390 0 0 0 9 0 0 0 20 0 1 0 275243043 3088384 371 18446744073709551615 134512640 136266365 4294956720 18446744073709551615 135740481 0 0 4096 0 0 0 0 17 1 0 0
/proc/18031/statm: 754 371 196 428 0 323 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3016

Child status: 0
Real time (s): 0.105169
CPU time (s): 0.098984
CPU user time (s): 0.098984
CPU system time (s): 0
CPU usage (%): 94.1189
Max. virtual memory (cumulated for all children) (KiB): 3016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.098984
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 396
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= 4

runsolver used 0.002999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node48 on Sat Jan 20 04:47:21 UTC 2007


IDJOB= 277513
IDBENCH= 7349
IDSOLVER= 60
FILE ID= node48/277513-1169268439

PBS_JOBID= 3607364

Free space on /tmp= 66561 MiB

SOLVER NAME= aolibpvo 2007-01-17
BENCH NAME= HOME/pub/bench/CPAI06/dimacs/pret/pret-60-40_ext.xml
COMMAND LINE= /tmp/evaluation/277513-1169268439/aolibpvo /tmp/evaluation/277513-1169268439/unknown.wcsp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node48/convwatcher-277513-1169268439 -o ROOT/results/node48/conversion-277513-1169268439 -C 600 -M 900 python xcsp2wcsp.py /tmp/evaluation/277513-1169268439/unknown.xml
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-277513-1169268439 -o ROOT/results/node48/solver-277513-1169268439 -C 2400 -M 900  /tmp/evaluation/277513-1169268439/aolibpvo /tmp/evaluation/277513-1169268439/unknown.wcsp

META MD5SUM SOLVER= b8e99429ba4d9a99d2bd28d3d95367aa
MD5SUM BENCH=  0d74555e44f25386bfce89d3fd5d9a3a

RANDOM SEED= 104598100

TIME LIMIT= 2400 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		: 3000.218
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		: 3000.218
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:       1378504 kB
Buffers:         48848 kB
Cached:         502428 kB
SwapCached:          0 kB
Active:         132984 kB
Inactive:       466580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1378504 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3956 kB
Writeback:           0 kB
Mapped:          68588 kB
Slab:            63096 kB
Committed_AS:  6339504 kB
PageTables:       1848 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= 66561 MiB



End job on node48 on Sat Jan 20 04:47:24 UTC 2007