Trace number 269007

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 3.1SAT 4.02539 4.0328

DiagnosticValue
CHECKS144428000
NODES4651

General information on the benchmark

Nametightness/tightness0.8/
rand-2-40-80-103-800-17_ext.xml
MD5SUMd289aba8ef3634ad11565c09f6353321
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 benchmark0.817875
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables40
Number of constraints103
Maximum constraint arity2
Maximum domain size80
Number of constraints which are defined in extension103
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

4.03	s SATISFIABLE
4.03	v 54 7 9 15 79 5 17 73 23 77 55 0 62 11 41 61 3 67 11 73 2 12 18 47 14 62 62 27 13 77 63 19 5 66 14 0 31 4 35 0 
4.03	d CHECKS 1.44428e+08
4.03	d NODES 4651

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/node35/watcher-269007-1168980122 -o ROOT/results/node35/solver-269007-1168980122 -C 1800 -M 900 /tmp/evaluation/269007-1168980122/VALCSP /tmp/evaluation/269007-1168980122/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: 0.05 0.40 0.95 4/68 7352
/proc/meminfo: memFree=1279120/2055920 swapFree=4184740/4192956
[pid=7351] ppid=7349 vsize=1468 CPUtime=0
/proc/7351/stat : 7351 (VALCSP) R 7349 7351 7035 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 246407659 1503232 105 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 1924348 0 0 4096 0 0 0 0 17 1 0 0
/proc/7351/statm: 367 105 64 8 0 39 0

[startup+0.106876 s]
/proc/loadavg: 0.05 0.40 0.95 4/68 7352
/proc/meminfo: memFree=1279120/2055920 swapFree=4184740/4192956
[pid=7351] ppid=7349 vsize=1732 CPUtime=0.1
/proc/7351/stat : 7351 (VALCSP) R 7349 7351 7035 0 -1 4194304 186 0 0 0 10 0 0 0 18 0 1 0 246407659 1773568 164 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/7351/statm: 433 164 64 8 0 105 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1732

[startup+0.514924 s]
/proc/loadavg: 0.05 0.40 0.95 4/68 7352
/proc/meminfo: memFree=1279120/2055920 swapFree=4184740/4192956
[pid=7351] ppid=7349 vsize=2656 CPUtime=0.51
/proc/7351/stat : 7351 (VALCSP) R 7349 7351 7035 0 -1 4194304 416 0 0 0 51 0 0 0 21 0 1 0 246407659 2719744 394 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 1924316 0 0 4096 0 0 0 0 17 1 0 0
/proc/7351/statm: 664 394 64 8 0 336 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2656

[startup+1.33502 s]
/proc/loadavg: 0.05 0.40 0.95 2/68 7352
/proc/meminfo: memFree=1276368/2055920 swapFree=4184740/4192956
[pid=7351] ppid=7349 vsize=4508 CPUtime=1.32
/proc/7351/stat : 7351 (VALCSP) R 7349 7351 7035 0 -1 4194304 892 0 0 0 132 0 0 0 25 0 1 0 246407659 4616192 870 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 1924268 0 0 4096 0 0 0 0 17 1 0 0
/proc/7351/statm: 1127 870 64 8 0 799 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 4508

[startup+2.97122 s]
/proc/loadavg: 0.05 0.40 0.95 2/68 7352
/proc/meminfo: memFree=1272080/2055920 swapFree=4184740/4192956
[pid=7351] ppid=7349 vsize=8336 CPUtime=2.96
/proc/7351/stat : 7351 (VALCSP) R 7349 7351 7035 0 -1 4194304 1834 0 0 0 296 0 0 0 25 0 1 0 246407659 8536064 1812 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134527121 0 0 4096 0 0 0 0 17 1 0 0
/proc/7351/statm: 2084 1812 66 8 0 1756 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 8336

Child status: 0
Real time (s): 4.0328
CPU time (s): 4.02539
CPU user time (s): 4.01439
CPU system time (s): 0.010998
CPU usage (%): 99.8162
Max. virtual memory (cumulated for all children) (KiB): 8336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.01439
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1864
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= 17

runsolver used 0.004999 s user time and 0.015997 s system time

The end

Launcher Data (download as text)

Begin job on node35 on Tue Jan 16 20:42:11 UTC 2007


IDJOB= 269007
IDBENCH= 5826
IDSOLVER= 90
FILE ID= node35/269007-1168980122

PBS_JOBID= 3566252

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.8/rand-2-40-80-103-800-17_ext.xml
COMMAND LINE= /tmp/evaluation/269007-1168980122/VALCSP /tmp/evaluation/269007-1168980122/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-269007-1168980122 -o ROOT/results/node35/solver-269007-1168980122 -C 1800 -M 900  /tmp/evaluation/269007-1168980122/VALCSP /tmp/evaluation/269007-1168980122/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  d289aba8ef3634ad11565c09f6353321

RANDOM SEED= 413911387

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		: 3000.234
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		: 3000.234
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:       1279528 kB
Buffers:         55944 kB
Cached:         627844 kB
SwapCached:       2264 kB
Active:          61620 kB
Inactive:       636636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1279528 kB
SwapTotal:     4192956 kB
SwapFree:      4184740 kB
Dirty:             892 kB
Writeback:           0 kB
Mapped:          21272 kB
Slab:            63872 kB
Committed_AS:  4836972 kB
PageTables:       1620 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= 66564 MiB



End job on node35 on Tue Jan 16 20:42:29 UTC 2007