Trace number 2091988

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-restart 0.3.2SAT 2.6436 2.6749

DiagnosticValue
ASSIGNMENTS10457

General information on the benchmark

Namecsp/tightness0.1/
normalized-rand-2-40-8-753-100-5_ext.xml
MD5SUMec911a44c35c9fd92c8f9427140cce07
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 benchmark0.788879
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints752
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension752
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
0.00/0.05	c Seed is 1034752047
0.00/0.05	c Constructing HOME/instance-2091988-1247733655.xml  with 3067 constraints
0.08/0.11	c Solving 10457 backtracks 14 restarts
2.55/2.67	s SATISFIABLE
2.55/2.67	c V0=3, V1=5, V2=2, V3=1, V4=0, V5=3, V6=4, V7=0, V8=1, V9=3, V10=7, V11=0, V12=6, V13=0, V14=7, V15=4, V16=6, V17=4, V18=4, V19=1, V20=5, V21=2, V22=7, V23=2, V24=3, V25=2, V26=5, V27=3, V28=2, V29=6, V30=6, V31=3, V32=2, V33=3, V34=3, V35=2, V36=2, V37=7, V38=4, V39=0, 
2.55/2.67	v 3 5 2 1 0 3 4 0 1 3 7 0 6 0 7 4 6 4 4 1 5 2 7 2 3 2 5 3 2 6 6 3 2 3 3 2 2 7 4 0 
2.55/2.67	d ASSIGNMENTS 10457

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-2091988-1247733655/watcher-2091988-1247733655 -o /tmp/evaluation-result-2091988-1247733655/solver-2091988-1247733655 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1034752047 HOME/instance-2091988-1247733655.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: 2.00 2.00 2.00 4/81 17035
/proc/meminfo: memFree=1224736/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=5356 CPUtime=0
/proc/17035/stat : 17035 (pcssolve) R 17033 17035 15802 0 -1 4194304 265 0 0 0 0 0 0 0 20 0 1 0 60428675 5484544 233 996147200 4194304 4889804 548682068800 18446744073709551615 4316785 0 0 4100 65536 0 0 0 17 1 0 0
/proc/17035/statm: 1339 233 194 169 0 50 0

[startup+0.012248 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 17035
/proc/meminfo: memFree=1224736/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=5356 CPUtime=0
/proc/17035/stat : 17035 (pcssolve) R 17033 17035 15802 0 -1 4194304 309 317 0 0 0 0 0 0 21 0 1 0 60428675 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 226238196383 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17035/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.102257 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 17035
/proc/meminfo: memFree=1224736/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=5080 CPUtime=0.08
/proc/17035/stat : 17035 (pcs.small) R 17033 17035 15802 0 -1 4194304 1000 822 0 0 8 0 0 0 18 0 1 0 60428675 5201920 609 996147200 134512640 135095119 4294956304 18446744073709551615 134590360 0 0 4096 0 0 0 0 17 1 0 0
/proc/17035/statm: 1270 609 378 142 0 224 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5080

[startup+0.302273 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 17035
/proc/meminfo: memFree=1224736/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=5340 CPUtime=0.27
/proc/17035/stat : 17035 (pcs.small) R 17033 17035 15802 0 -1 4194304 1060 822 0 0 27 0 0 0 19 0 1 0 60428675 5468160 636 996147200 134512640 135095119 4294956304 18446744073709551615 134642962 0 0 4096 0 0 0 0 17 1 0 0
/proc/17035/statm: 1335 636 378 142 0 289 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5340

[startup+0.701308 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 17035
/proc/meminfo: memFree=1224736/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=5728 CPUtime=0.67
/proc/17035/stat : 17035 (pcs.small) R 17033 17035 15802 0 -1 4194304 1188 822 0 0 67 0 0 0 23 0 1 0 60428675 5865472 731 996147200 134512640 135095119 4294956304 18446744073709551615 134617057 0 0 4096 0 0 0 0 17 1 0 0
/proc/17035/statm: 1432 731 378 142 0 386 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5728

[startup+1.50138 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 17041
/proc/meminfo: memFree=1222872/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=6892 CPUtime=1.46
/proc/17035/stat : 17035 (pcs.small) R 17033 17035 15802 0 -1 4194304 1567 822 0 0 146 0 0 0 25 0 1 0 60428675 7057408 980 996147200 134512640 135095119 4294956304 18446744073709551615 134642970 0 0 4096 0 0 0 0 17 1 0 0
/proc/17035/statm: 1723 980 378 142 0 677 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 6892

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

[startup+2.30145 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 17041
/proc/meminfo: memFree=1221656/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=7668 CPUtime=2.25
/proc/17035/stat : 17035 (pcs.small) R 17033 17035 15802 0 -1 4194304 1850 822 0 0 225 0 0 0 25 0 1 0 60428675 7852032 1134 996147200 134512640 135095119 4294956304 18446744073709551615 134638149 0 0 4096 0 0 0 0 17 1 0 0
/proc/17035/statm: 1917 1134 378 142 0 871 0
Current children cumulated CPU time (s) 2.25
Current children cumulated vsize (KiB) 7668

[startup+2.50147 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 17041
/proc/meminfo: memFree=1221656/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=7796 CPUtime=2.45
/proc/17035/stat : 17035 (pcs.small) R 17033 17035 15802 0 -1 4194304 1896 822 0 0 245 0 0 0 25 0 1 0 60428675 7983104 1180 996147200 134512640 135095119 4294956304 18446744073709551615 134637435 0 0 4096 0 0 0 0 17 1 0 0
/proc/17035/statm: 1949 1180 378 142 0 903 0
Current children cumulated CPU time (s) 2.45
Current children cumulated vsize (KiB) 7796

[startup+2.60148 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 17041
/proc/meminfo: memFree=1221656/2055920 swapFree=4192812/4192956
[pid=17035] ppid=17033 vsize=7928 CPUtime=2.55
/proc/17035/stat : 17035 (pcs.small) R 17033 17035 15802 0 -1 4194304 1919 822 0 0 255 0 0 0 25 0 1 0 60428675 8118272 1203 996147200 134512640 135095119 4294956304 18446744073709551615 134638344 0 0 4096 0 0 0 0 17 1 0 0
/proc/17035/statm: 1982 1203 378 142 0 936 0
Current children cumulated CPU time (s) 2.55
Current children cumulated vsize (KiB) 7928

Child status: 0
Real time (s): 2.6749
CPU time (s): 2.6436
CPU user time (s): 2.6286
CPU system time (s): 0.014997
CPU usage (%): 98.8298
Max. virtual memory (cumulated for all children) (KiB): 7928

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6286
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2759
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= 119

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node58 at 2009-07-16 10:40:55
IDJOB=2091988
IDBENCH=60229
IDSOLVER=734
FILE ID=node58/2091988-1247733655
PBS_JOBID= 9521517
Free space on /tmp= 66244 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/tightness0.1/normalized-rand-2-40-8-753-100-5_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2091988-1247733655/watcher-2091988-1247733655 -o /tmp/evaluation-result-2091988-1247733655/solver-2091988-1247733655 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1034752047 HOME/instance-2091988-1247733655.xml

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

MD5SUM BENCH= ec911a44c35c9fd92c8f9427140cce07
RANDOM SEED=1034752047

node58.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		: 3000.234
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		: 3000.234
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:       1225216 kB
Buffers:         88696 kB
Cached:         634008 kB
SwapCached:          0 kB
Active:         233396 kB
Inactive:       524016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1225216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1844 kB
Writeback:           0 kB
Mapped:          55008 kB
Slab:            58492 kB
Committed_AS:   559632 kB
PageTables:       1808 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= 66244 MiB
End job on node58 at 2009-07-16 10:40:58