Trace number 2090216

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
pcs 0.3.2SAT 0.283956 0.289855

DiagnosticValue
ASSIGNMENTS1081

General information on the benchmark

Namecsp/rand-2-30-15/
normalized-rand-2-30-15-306-230-24_ext.xml
MD5SUM0ebb78416df7170723a3d81dcb6221bf
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 benchmark0.045992
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints208
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension208
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.20	c Seed is 1701661370
0.18/0.20	c Constructing HOME/instance-2090216-1247731012.xml  with 3064 constraints
0.18/0.20	c Solving 1081 backtracks 8 restarts
0.18/0.28	s SATISFIABLE
0.18/0.28	c V0=6, V1=6, V2=6, V3=9, V4=9, V5=8, V6=14, V7=5, V8=6, V9=0, V10=0, V11=6, V12=7, V13=9, V14=11, V15=14, V16=13, V17=2, V18=0, V19=8, V20=5, V21=6, V22=2, V23=1, V24=3, V25=10, V26=8, V27=7, V28=2, V29=2, 
0.18/0.28	v 6 6 6 9 9 8 14 5 6 0 0 6 7 9 11 14 13 2 0 8 5 6 2 1 3 10 8 7 2 2 
0.18/0.28	d ASSIGNMENTS 1081

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2090216-1247731012/watcher-2090216-1247731012 -o /tmp/evaluation-result-2090216-1247731012/solver-2090216-1247731012 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1701661370 HOME/instance-2090216-1247731012.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16834
/proc/meminfo: memFree=1634008/2055920 swapFree=4192812/4192956
[pid=16834] ppid=16832 vsize=5356 CPUtime=0
/proc/16834/stat : 16834 (pcssolve) R 16832 16834 16306 0 -1 4194304 268 0 0 0 0 0 0 0 20 0 1 0 60168294 5484544 236 996147200 4194304 4889804 548682068800 18446744073709551615 4542660 0 0 4100 65536 0 0 0 17 1 0 0
/proc/16834/statm: 1339 236 197 169 0 50 0

[startup+0.06677 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16834
/proc/meminfo: memFree=1634008/2055920 swapFree=4192812/4192956
[pid=16834] ppid=16832 vsize=5300 CPUtime=0.04
/proc/16834/stat : 16834 (pcs.small) R 16832 16834 16306 0 -1 4194304 1038 822 0 0 4 0 0 0 18 0 1 0 60168294 5427200 647 996147200 134512640 135095119 4294956304 18446744073709551615 134617201 0 0 4096 0 0 0 0 17 1 0 0
/proc/16834/statm: 1325 647 378 142 0 279 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5300

[startup+0.101775 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16834
/proc/meminfo: memFree=1634008/2055920 swapFree=4192812/4192956
[pid=16834] ppid=16832 vsize=5300 CPUtime=0.08
/proc/16834/stat : 16834 (pcs.small) R 16832 16834 16306 0 -1 4194304 1040 822 0 0 8 0 0 0 18 0 1 0 60168294 5427200 649 996147200 134512640 135095119 4294956304 18446744073709551615 134642950 0 0 4096 0 0 0 0 17 1 0 0
/proc/16834/statm: 1325 649 378 142 0 279 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5300

Solver just ended. Dumping a history of the last processes samples

[startup+0.201797 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16834
/proc/meminfo: memFree=1634008/2055920 swapFree=4192812/4192956
[pid=16834] ppid=16832 vsize=5300 CPUtime=0.18
/proc/16834/stat : 16834 (pcs.small) R 16832 16834 16306 0 -1 4194304 1044 822 0 0 18 0 0 0 18 0 1 0 60168294 5427200 653 996147200 134512640 135095119 4294956304 18446744073709551615 134617038 0 0 4096 0 0 0 0 17 1 0 0
/proc/16834/statm: 1325 653 378 142 0 279 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5300

Child status: 0
Real time (s): 0.289855
CPU time (s): 0.283956
CPU user time (s): 0.271958
CPU system time (s): 0.011998
CPU usage (%): 97.9648
Max. virtual memory (cumulated for all children) (KiB): 5300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.271958
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1905
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= 22
involuntary context switches= 24

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node10 at 2009-07-16 09:56:52
IDJOB=2090216
IDBENCH=59707
IDSOLVER=733
FILE ID=node10/2090216-1247731012
PBS_JOBID= 9521561
Free space on /tmp= 66364 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rand-2-30-15/normalized-rand-2-30-15-306-230-24_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2090216-1247731012/watcher-2090216-1247731012 -o /tmp/evaluation-result-2090216-1247731012/solver-2090216-1247731012 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1701661370 HOME/instance-2090216-1247731012.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0ebb78416df7170723a3d81dcb6221bf
RANDOM SEED=1701661370

node10.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.279
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		: 3000.279
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:       1634424 kB
Buffers:         79284 kB
Cached:         236100 kB
SwapCached:          0 kB
Active:         106156 kB
Inactive:       242332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1634424 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2380 kB
Writeback:           0 kB
Mapped:          53460 kB
Slab:            58116 kB
Committed_AS:   639740 kB
PageTables:       1828 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= 66360 MiB
End job on node10 at 2009-07-16 09:56:53