Trace number 225284

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 3.0SAT 10.0865 10.0922

DiagnosticValue
CHECKS34532300
NODES641

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)

10.08	s SATISFIABLE
10.08	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 
10.08	d CHECKS 3.45323e+07
10.08	d NODES 641
10.08

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/node76/watcher-225284-1168271608 -o ROOT/results/node76/solver-225284-1168271608 -C 1800 -M 900 /tmp/evaluation/225284-1168271608/VALCSP /tmp/evaluation/225284-1168271608/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: 1.49 1.11 1.11 5/78 27162
/proc/meminfo: memFree=1770344/2055888 swapFree=4095388/4096564
[pid=27161] ppid=27159 vsize=1604 CPUtime=0
/proc/27161/stat : 27161 (VALCSP) R 27159 27161 26520 0 -1 4194304 148 0 0 0 0 0 0 0 18 0 1 0 175557872 1642496 126 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5257157 0 0 4096 0 0 0 0 17 1 0 0
/proc/27161/statm: 401 126 62 8 0 72 0

[startup+0.10422 s]
/proc/loadavg: 1.49 1.11 1.11 5/78 27162
/proc/meminfo: memFree=1770344/2055888 swapFree=4095388/4096564
[pid=27161] ppid=27159 vsize=1604 CPUtime=0.1
/proc/27161/stat : 27161 (VALCSP) R 27159 27161 26520 0 -1 4194304 152 0 0 0 10 0 0 0 18 0 1 0 175557872 1642496 130 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5279667 0 0 4096 0 0 0 0 17 1 0 0
/proc/27161/statm: 401 130 62 8 0 72 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1604

[startup+0.512299 s]
/proc/loadavg: 1.49 1.11 1.11 5/78 27162
/proc/meminfo: memFree=1770344/2055888 swapFree=4095388/4096564
[pid=27161] ppid=27159 vsize=2000 CPUtime=0.5
/proc/27161/stat : 27161 (VALCSP) R 27159 27161 26520 0 -1 4194304 258 0 0 0 50 0 0 0 22 0 1 0 175557872 2048000 236 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5279630 0 0 4096 0 0 0 0 17 1 0 0
/proc/27161/statm: 500 236 62 8 0 171 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 2000

[startup+1.33346 s]
/proc/loadavg: 1.49 1.11 1.11 3/78 27162
/proc/meminfo: memFree=1762608/2055888 swapFree=4095388/4096564
[pid=27161] ppid=27159 vsize=2792 CPUtime=1.32
/proc/27161/stat : 27161 (VALCSP) R 27159 27161 26520 0 -1 4194304 444 0 0 0 132 0 0 0 25 0 1 0 175557872 2859008 422 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5277505 0 0 4096 0 0 0 0 17 1 0 0
/proc/27161/statm: 698 422 62 8 0 369 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 2792

[startup+2.97278 s]
/proc/loadavg: 1.49 1.11 1.11 3/78 27162
/proc/meminfo: memFree=1755248/2055888 swapFree=4095388/4096564
[pid=27161] ppid=27159 vsize=4392 CPUtime=2.96
/proc/27161/stat : 27161 (VALCSP) R 27159 27161 26520 0 -1 4194304 842 0 0 0 296 0 0 0 25 0 1 0 175557872 4497408 820 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5279649 0 0 4096 0 0 0 0 17 1 0 0
/proc/27161/statm: 1098 820 62 8 0 769 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4392

[startup+6.25142 s]
/proc/loadavg: 1.53 1.13 1.12 3/78 27162
/proc/meminfo: memFree=1735152/2055888 swapFree=4095388/4096564
[pid=27161] ppid=27159 vsize=7452 CPUtime=6.24
/proc/27161/stat : 27161 (VALCSP) R 27159 27161 26520 0 -1 4194304 1614 0 0 0 624 0 0 0 25 0 1 0 175557872 7630848 1592 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5277484 0 0 4096 0 0 0 0 17 1 0 0
/proc/27161/statm: 1863 1592 62 8 0 1534 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 7452

Child status: 0
Real time (s): 10.0922
CPU time (s): 10.0865
CPU user time (s): 10.0675
CPU system time (s): 0.018997
CPU usage (%): 99.9434
Max. virtual memory (cumulated for all children) (KiB): 21340

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.0675
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5130
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= 28

runsolver used 0.010998 s user time and 0.029995 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Mon Jan  8 15:53:28 UTC 2007


IDJOB= 225284
IDBENCH= 5842
FILE ID= node76/225284-1168271608

PBS_JOBID= 3483210

Free space on /tmp= 66644 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-61_ext.xml
COMMAND LINE= /tmp/evaluation/225284-1168271608/VALCSP /tmp/evaluation/225284-1168271608/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-225284-1168271608 -o ROOT/results/node76/solver-225284-1168271608 -C 1800 -M 900  /tmp/evaluation/225284-1168271608/VALCSP /tmp/evaluation/225284-1168271608/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  46147d746ce7257ef661300187de47b6

RANDOM SEED= 715686648

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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1770888 kB
Buffers:         50964 kB
Cached:         113508 kB
SwapCached:        428 kB
Active:         154528 kB
Inactive:        82664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1770888 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:            2148 kB
Writeback:           0 kB
Mapped:          82432 kB
Slab:            33280 kB
Committed_AS:  6673352 kB
PageTables:       1968 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66644 MiB



End job on node76 on Mon Jan  8 15:53:38 UTC 2007