Trace number 268983

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 2.6256 2.62729

DiagnosticValue
CHECKS63410000
NODES902

General information on the benchmark

Nametightness/tightness0.8/
rand-2-40-80-103-800-75_ext.xml
MD5SUMbf729504377c66ba2337fbb3e283d9db
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 benchmark1.01584
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)

2.62	s SATISFIABLE
2.62	v 5 74 48 37 72 1 29 23 77 3 51 8 71 13 69 77 72 6 53 1 39 40 64 73 7 2 55 8 15 18 25 53 44 4 69 45 41 23 59 65 
2.62	d CHECKS 6.341e+07
2.62	d NODES 902

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/node55/watcher-268983-1168980091 -o ROOT/results/node55/solver-268983-1168980091 -C 1800 -M 900 /tmp/evaluation/268983-1168980091/VALCSP /tmp/evaluation/268983-1168980091/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: 1.16 1.00 1.03 4/68 9180
/proc/meminfo: memFree=1573944/2055920 swapFree=4192192/4192956
[pid=9179] ppid=9177 vsize=1468 CPUtime=0
/proc/9179/stat : 9179 (VALCSP) R 9177 9179 8895 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 246408461 1503232 105 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7310510 0 0 4096 0 0 0 0 17 0 0 0
/proc/9179/statm: 367 105 64 8 0 39 0

[startup+0.103272 s]
/proc/loadavg: 1.16 1.00 1.03 4/68 9180
/proc/meminfo: memFree=1573944/2055920 swapFree=4192192/4192956
[pid=9179] ppid=9177 vsize=1732 CPUtime=0.1
/proc/9179/stat : 9179 (VALCSP) R 9177 9179 8895 0 -1 4194304 187 0 0 0 10 0 0 0 18 0 1 0 246408461 1773568 165 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7313326 0 0 4096 0 0 0 0 17 0 0 0
/proc/9179/statm: 433 165 64 8 0 105 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1732

[startup+0.511308 s]
/proc/loadavg: 1.16 1.00 1.03 4/68 9180
/proc/meminfo: memFree=1573944/2055920 swapFree=4192192/4192956
[pid=9179] ppid=9177 vsize=2792 CPUtime=0.5
/proc/9179/stat : 9179 (VALCSP) R 9177 9179 8895 0 -1 4194304 435 0 0 0 50 0 0 0 22 0 1 0 246408461 2859008 413 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7310588 0 0 4096 0 0 0 0 17 0 0 0
/proc/9179/statm: 698 413 64 8 0 370 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 2792

[startup+1.33239 s]
/proc/loadavg: 1.16 1.00 1.03 2/68 9180
/proc/meminfo: memFree=1570936/2055920 swapFree=4192192/4192956
[pid=9179] ppid=9177 vsize=4780 CPUtime=1.32
/proc/9179/stat : 9179 (VALCSP) R 9177 9179 8895 0 -1 4194304 942 0 0 0 132 0 0 0 25 0 1 0 246408461 4894720 920 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7310556 0 0 4096 0 0 0 0 17 0 0 0
/proc/9179/statm: 1195 920 64 8 0 867 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 4780

Child status: 0
Real time (s): 2.62729
CPU time (s): 2.6256
CPU user time (s): 2.6146
CPU system time (s): 0.010998
CPU usage (%): 99.9355
Max. virtual memory (cumulated for all children) (KiB): 8344

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6146
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= 9

runsolver used 0.010998 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node55 on Tue Jan 16 20:41:37 UTC 2007


IDJOB= 268983
IDBENCH= 5771
IDSOLVER= 90
FILE ID= node55/268983-1168980091

PBS_JOBID= 3566245

Free space on /tmp= 66563 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.8/rand-2-40-80-103-800-75_ext.xml
COMMAND LINE= /tmp/evaluation/268983-1168980091/VALCSP /tmp/evaluation/268983-1168980091/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-268983-1168980091 -o ROOT/results/node55/solver-268983-1168980091 -C 1800 -M 900  /tmp/evaluation/268983-1168980091/VALCSP /tmp/evaluation/268983-1168980091/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  bf729504377c66ba2337fbb3e283d9db

RANDOM SEED= 454197420

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		: 3000.218
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	: 5931.00
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:       1574488 kB
Buffers:         41692 kB
Cached:         342240 kB
SwapCached:        268 kB
Active:          34888 kB
Inactive:       368868 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1574488 kB
SwapTotal:     4192956 kB
SwapFree:      4192192 kB
Dirty:             856 kB
Writeback:           0 kB
Mapped:          28796 kB
Slab:            63424 kB
Committed_AS:  4981384 kB
PageTables:       1572 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= 66563 MiB



End job on node55 on Tue Jan 16 20:41:48 UTC 2007