Trace number 269013

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 10.7304 10.8197

DiagnosticValue
CHECKS28237900
NODES265

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-61_ext.xml
MD5SUM46147d746ce7257ef661300187de47b6
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 benchmark0.777881
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

10.81	s SATISFIABLE
10.81	v 62 90 32 88 89 27 159 72 47 0 78 107 52 76 131 66 59 89 164 64 109 60 99 167 172 92 162 115 91 47 0 172 83 23 156 19 43 95 39 108 
10.81	d CHECKS 2.82379e+07
10.81	d NODES 265

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/node15/watcher-269013-1168980126 -o ROOT/results/node15/solver-269013-1168980126 -C 1800 -M 900 /tmp/evaluation/269013-1168980126/VALCSP /tmp/evaluation/269013-1168980126/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: 1.08 1.25 1.42 5/86 8251
/proc/meminfo: memFree=1734808/2055920 swapFree=4174236/4192956
[pid=8250] ppid=8248 vsize=18540 CPUtime=0
/proc/8250/stat : 8250 (runsolver) R 8248 8250 8080 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 246408864 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 240472616231 0 0 4096 24578 0 0 0 17 1 0 0
/proc/8250/statm: 4635 279 244 17 0 2626 0

[startup+0.10841 s]
/proc/loadavg: 1.08 1.25 1.42 5/86 8251
/proc/meminfo: memFree=1734808/2055920 swapFree=4174236/4192956
[pid=8250] ppid=8248 vsize=1600 CPUtime=0.1
/proc/8250/stat : 8250 (VALCSP) R 8248 8250 8080 0 -1 4194304 154 0 0 0 10 0 0 0 20 0 1 0 246408864 1638400 132 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7974071 0 0 4096 0 0 0 0 17 1 0 0
/proc/8250/statm: 400 132 64 8 0 72 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1600

[startup+0.516479 s]
/proc/loadavg: 1.08 1.25 1.42 5/86 8251
/proc/meminfo: memFree=1734808/2055920 swapFree=4174236/4192956
[pid=8250] ppid=8248 vsize=1996 CPUtime=0.5
/proc/8250/stat : 8250 (VALCSP) R 8248 8250 8080 0 -1 4194304 258 0 0 0 50 0 0 0 24 0 1 0 246408864 2043904 236 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7971916 0 0 4096 0 0 0 0 17 1 0 0
/proc/8250/statm: 499 236 64 8 0 171 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 1996

[startup+1.33962 s]
/proc/loadavg: 1.08 1.25 1.42 3/86 8251
/proc/meminfo: memFree=1733528/2055920 swapFree=4174236/4192956
[pid=8250] ppid=8248 vsize=2788 CPUtime=1.32
/proc/8250/stat : 8250 (VALCSP) R 8248 8250 8080 0 -1 4194304 442 0 0 0 132 0 0 0 25 0 1 0 246408864 2854912 420 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7974122 0 0 4096 0 0 0 0 17 1 0 0
/proc/8250/statm: 697 420 64 8 0 369 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 2788

[startup+2.9769 s]
/proc/loadavg: 1.08 1.25 1.42 3/86 8251
/proc/meminfo: memFree=1732568/2055920 swapFree=4174236/4192956
[pid=8250] ppid=8248 vsize=4116 CPUtime=2.94
/proc/8250/stat : 8250 (VALCSP) R 8248 8250 8080 0 -1 4194304 792 0 0 0 294 0 0 0 25 0 1 0 246408864 4214784 770 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7974060 0 0 4096 0 0 0 0 17 1 0 0
/proc/8250/statm: 1029 770 64 8 0 701 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 4116

[startup+6.25846 s]
/proc/loadavg: 1.15 1.26 1.43 3/86 8251
/proc/meminfo: memFree=1729560/2055920 swapFree=4174236/4192956
[pid=8250] ppid=8248 vsize=7048 CPUtime=6.19
/proc/8250/stat : 8250 (VALCSP) R 8248 8250 8080 0 -1 4194304 1511 0 0 0 619 0 0 0 25 0 1 0 246408864 7217152 1489 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7974060 0 0 4096 0 0 0 0 17 1 0 0
/proc/8250/statm: 1762 1489 64 8 0 1434 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 7048

Child status: 0
Real time (s): 10.8197
CPU time (s): 10.7304
CPU user time (s): 10.7034
CPU system time (s): 0.026995
CPU usage (%): 99.1741
Max. virtual memory (cumulated for all children) (KiB): 21336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.7034
system time used= 0.026995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5131
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= 250

runsolver used 0.006998 s user time and 0.039993 s system time

The end

Launcher Data (download as text)

Begin job on node15 on Tue Jan 16 20:42:12 UTC 2007


IDJOB= 269013
IDBENCH= 5842
IDSOLVER= 90
FILE ID= node15/269013-1168980126

PBS_JOBID= 3566001

Free space on /tmp= 66562 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-61_ext.xml
COMMAND LINE= /tmp/evaluation/269013-1168980126/VALCSP /tmp/evaluation/269013-1168980126/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-269013-1168980126 -o ROOT/results/node15/solver-269013-1168980126 -C 1800 -M 900  /tmp/evaluation/269013-1168980126/VALCSP /tmp/evaluation/269013-1168980126/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  46147d746ce7257ef661300187de47b6

RANDOM SEED= 387605

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		: 3000.276
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		: 3000.276
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:       1735352 kB
Buffers:         46700 kB
Cached:         176900 kB
SwapCached:       6376 kB
Active:         176780 kB
Inactive:        88620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1735352 kB
SwapTotal:     4192956 kB
SwapFree:      4174236 kB
Dirty:            1944 kB
Writeback:           0 kB
Mapped:          51952 kB
Slab:            39984 kB
Committed_AS:  7694428 kB
PageTables:       2352 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= 66562 MiB



End job on node15 on Tue Jan 16 20:42:31 UTC 2007