Trace number 2090106

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 1.76773 1.78558

DiagnosticValue
ASSIGNMENTS6102

General information on the benchmark

Namecsp/rand-2-30-15/
normalized-rand-2-30-15-306-230-26_ext.xml
MD5SUMd1b5779c6c84ee0967140e223a1ed622
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 benchmark1.20981
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints222
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension222
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
0.08/0.15	c Seed is 93368577
0.08/0.15	c Constructing HOME/instance-2090106-1247730995.xml  with 3276 constraints
0.08/0.15	c Solving 6102 backtracks 12 restarts
1.66/1.78	s SATISFIABLE
1.66/1.78	c V0=13, V1=0, V2=13, V3=4, V4=9, V5=12, V6=10, V7=4, V8=13, V9=3, V10=1, V11=10, V12=12, V13=6, V14=4, V15=11, V16=10, V17=0, V18=0, V19=9, V20=14, V21=13, V22=1, V23=2, V24=3, V25=2, V26=11, V27=6, V28=9, V29=12, 
1.66/1.78	v 13 0 13 4 9 12 10 4 13 3 1 10 12 6 4 11 10 0 0 9 14 13 1 2 3 2 11 6 9 12 
1.66/1.78	d ASSIGNMENTS 6102

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-2090106-1247730995/watcher-2090106-1247730995 -o /tmp/evaluation-result-2090106-1247730995/solver-2090106-1247730995 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 93368577 HOME/instance-2090106-1247730995.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 1.99 1.99 4/72 14976
/proc/meminfo: memFree=1440728/2055920 swapFree=4192812/4192956
[pid=14976] ppid=14974 vsize=18576 CPUtime=0
/proc/14976/stat : 14976 (runsolver) R 14974 14976 14468 0 -1 4194368 15 0 0 0 0 0 0 0 21 0 1 0 60163407 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 259415141671 0 0 4096 24578 0 0 0 17 1 0 0
/proc/14976/statm: 4644 284 249 26 0 2626 0

[startup+0.0705891 s]
/proc/loadavg: 1.94 1.99 1.99 4/72 14976
/proc/meminfo: memFree=1440728/2055920 swapFree=4192812/4192956
[pid=14976] ppid=14974 vsize=5304 CPUtime=0.04
/proc/14976/stat : 14976 (pcs.small) R 14974 14976 14468 0 -1 4194304 1045 822 0 0 4 0 0 0 18 0 1 0 60163407 5431296 654 996147200 134512640 135095119 4294956304 18446744073709551615 134607184 0 0 4096 0 0 0 0 17 1 0 0
/proc/14976/statm: 1326 654 378 142 0 280 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5304

[startup+0.102591 s]
/proc/loadavg: 1.94 1.99 1.99 4/72 14976
/proc/meminfo: memFree=1440728/2055920 swapFree=4192812/4192956
[pid=14976] ppid=14974 vsize=5304 CPUtime=0.08
/proc/14976/stat : 14976 (pcs.small) R 14974 14976 14468 0 -1 4194304 1046 822 0 0 8 0 0 0 18 0 1 0 60163407 5431296 655 996147200 134512640 135095119 4294956304 18446744073709551615 134617713 0 0 4096 0 0 0 0 17 1 0 0
/proc/14976/statm: 1326 655 378 142 0 280 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5304

[startup+0.30163 s]
/proc/loadavg: 1.94 1.99 1.99 4/72 14976
/proc/meminfo: memFree=1440728/2055920 swapFree=4192812/4192956
[pid=14976] ppid=14974 vsize=5564 CPUtime=0.28
/proc/14976/stat : 14976 (pcs.small) R 14974 14976 14468 0 -1 4194304 1104 822 0 0 28 0 0 0 20 0 1 0 60163407 5697536 680 996147200 134512640 135095119 4294956304 18446744073709551615 134838274 0 0 4096 0 0 0 0 17 1 0 0
/proc/14976/statm: 1391 680 378 142 0 345 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5564

[startup+0.701705 s]
/proc/loadavg: 1.94 1.99 1.99 4/72 14976
/proc/meminfo: memFree=1440728/2055920 swapFree=4192812/4192956
[pid=14976] ppid=14974 vsize=5692 CPUtime=0.67
/proc/14976/stat : 14976 (pcs.small) R 14974 14976 14468 0 -1 4194304 1182 822 0 0 67 0 0 0 23 0 1 0 60163407 5828608 725 996147200 134512640 135095119 4294956304 18446744073709551615 134576575 0 0 4096 0 0 0 0 17 1 0 0
/proc/14976/statm: 1423 725 378 142 0 377 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5692

[startup+1.50186 s]
/proc/loadavg: 1.94 1.99 1.99 3/73 14982
/proc/meminfo: memFree=1438928/2055920 swapFree=4192812/4192956
[pid=14976] ppid=14974 vsize=6732 CPUtime=1.46
/proc/14976/stat : 14976 (pcs.small) R 14974 14976 14468 0 -1 4194304 1524 822 0 0 146 0 0 0 25 0 1 0 60163407 6893568 937 996147200 134512640 135095119 4294956304 18446744073709551615 134617019 0 0 4096 0 0 0 0 17 1 0 0
/proc/14976/statm: 1683 937 378 142 0 637 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 6732

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

[startup+1.7019 s]
/proc/loadavg: 1.94 1.99 1.99 3/73 14982
/proc/meminfo: memFree=1438928/2055920 swapFree=4192812/4192956
[pid=14976] ppid=14974 vsize=6732 CPUtime=1.66
/proc/14976/stat : 14976 (pcs.small) R 14974 14976 14468 0 -1 4194304 1542 822 0 0 166 0 0 0 25 0 1 0 60163407 6893568 955 996147200 134512640 135095119 4294956304 18446744073709551615 134642964 0 0 4096 0 0 0 0 17 1 0 0
/proc/14976/statm: 1683 955 378 142 0 637 0
Current children cumulated CPU time (s) 1.66
Current children cumulated vsize (KiB) 6732

Child status: 0
Real time (s): 1.78558
CPU time (s): 1.76773
CPU user time (s): 1.75173
CPU system time (s): 0.015997
CPU usage (%): 99.0003
Max. virtual memory (cumulated for all children) (KiB): 6732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.75173
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2373
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= 50

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node42 at 2009-07-16 09:56:35
IDJOB=2090106
IDBENCH=59678
IDSOLVER=733
FILE ID=node42/2090106-1247730995
PBS_JOBID= 9521604
Free space on /tmp= 66292 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rand-2-30-15/normalized-rand-2-30-15-306-230-26_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2090106-1247730995/watcher-2090106-1247730995 -o /tmp/evaluation-result-2090106-1247730995/solver-2090106-1247730995 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 93368577 HOME/instance-2090106-1247730995.xml

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

MD5SUM BENCH= d1b5779c6c84ee0967140e223a1ed622
RANDOM SEED=93368577

node42.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		: 3000.283
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		: 3000.283
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:       1441208 kB
Buffers:         88380 kB
Cached:         354096 kB
SwapCached:          0 kB
Active:         171204 kB
Inactive:       353492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1441208 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2288 kB
Writeback:           0 kB
Mapped:          93708 kB
Slab:            75292 kB
Committed_AS:   627436 kB
PageTables:       1904 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= 66288 MiB
End job on node42 at 2009-07-16 09:56:37