Trace number 2090184

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 1.74273 1.76436

DiagnosticValue
ASSIGNMENTS6016

General information on the benchmark

Namecsp/rand-2-30-15/
normalized-rand-2-30-15-306-230-7_ext.xml
MD5SUM1a80a4ae25992e7bcf91f881d62fd585
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 benchmark0.378942
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints224
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension224
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
0.18/0.22	c Seed is 702877496
0.18/0.22	c Constructing HOME/instance-2090184-1247731006.xml  with 3302 constraints
0.18/0.22	c Solving 6016 backtracks 12 restarts
1.66/1.76	s SATISFIABLE
1.66/1.76	c V0=8, V1=12, V2=13, V3=9, V4=13, V5=13, V6=5, V7=11, V8=0, V9=2, V10=14, V11=8, V12=0, V13=14, V14=6, V15=13, V16=1, V17=10, V18=3, V19=12, V20=1, V21=0, V22=10, V23=8, V24=7, V25=5, V26=0, V27=2, V28=1, V29=4, 
1.66/1.76	v 8 12 13 9 13 13 5 11 0 2 14 8 0 14 6 13 1 10 3 12 1 0 10 8 7 5 0 2 1 4 
1.66/1.76	d ASSIGNMENTS 6016

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-2090184-1247731006/watcher-2090184-1247731006 -o /tmp/evaluation-result-2090184-1247731006/solver-2090184-1247731006 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 702877496 HOME/instance-2090184-1247731006.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 16770
/proc/meminfo: memFree=1634136/2055920 swapFree=4192812/4192956
[pid=16770] ppid=16768 vsize=18576 CPUtime=0
/proc/16770/stat : 16770 (runsolver) R 16768 16770 16306 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 60167678 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 214919867687 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16770/statm: 4644 284 249 26 0 2626 0

[startup+0.106252 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16770
/proc/meminfo: memFree=1634136/2055920 swapFree=4192812/4192956
[pid=16770] ppid=16768 vsize=5308 CPUtime=0.08
/proc/16770/stat : 16770 (pcs.small) R 16768 16770 16306 0 -1 4194304 1047 822 0 0 8 0 0 0 18 0 1 0 60167678 5435392 656 996147200 134512640 135095119 4294956304 18446744073709551615 134642982 0 0 4096 0 0 0 0 17 1 0 0
/proc/16770/statm: 1327 656 378 142 0 281 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5308

[startup+0.20127 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16770
/proc/meminfo: memFree=1634136/2055920 swapFree=4192812/4192956
[pid=16770] ppid=16768 vsize=5308 CPUtime=0.18
/proc/16770/stat : 16770 (pcs.small) R 16768 16770 16306 0 -1 4194304 1051 822 0 0 18 0 0 0 18 0 1 0 60167678 5435392 660 996147200 134512640 135095119 4294956304 18446744073709551615 134641821 0 0 4096 0 0 0 0 17 1 0 0
/proc/16770/statm: 1327 660 378 142 0 281 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5308

[startup+0.301291 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16770
/proc/meminfo: memFree=1634136/2055920 swapFree=4192812/4192956
[pid=16770] ppid=16768 vsize=5436 CPUtime=0.27
/proc/16770/stat : 16770 (pcs.small) R 16768 16770 16306 0 -1 4194304 1087 822 0 0 27 0 0 0 19 0 1 0 60167678 5566464 663 996147200 134512640 135095119 4294956304 18446744073709551615 134615460 0 0 4096 0 0 0 0 17 1 0 0
/proc/16770/statm: 1359 663 378 142 0 313 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5436

[startup+0.701376 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16770
/proc/meminfo: memFree=1634136/2055920 swapFree=4192812/4192956
[pid=16770] ppid=16768 vsize=5696 CPUtime=0.67
/proc/16770/stat : 16770 (pcs.small) R 16768 16770 16306 0 -1 4194304 1147 822 0 0 67 0 0 0 23 0 1 0 60167678 5832704 723 996147200 134512640 135095119 4294956304 18446744073709551615 134641657 0 0 4096 0 0 0 0 17 1 0 0
/proc/16770/statm: 1424 723 378 142 0 378 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5696

[startup+1.50155 s]
/proc/loadavg: 1.94 1.98 1.99 3/82 16776
/proc/meminfo: memFree=1632272/2055920 swapFree=4192812/4192956
[pid=16770] ppid=16768 vsize=6736 CPUtime=1.46
/proc/16770/stat : 16770 (pcs.small) R 16768 16770 16306 0 -1 4194304 1489 822 0 0 146 0 0 0 25 0 1 0 60167678 6897664 935 996147200 134512640 135095119 4294956304 18446744073709551615 134636926 0 0 4096 0 0 0 0 17 1 0 0
/proc/16770/statm: 1684 935 378 142 0 638 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 6736

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

[startup+1.60157 s]
/proc/loadavg: 1.94 1.98 1.99 3/82 16776
/proc/meminfo: memFree=1632272/2055920 swapFree=4192812/4192956
[pid=16770] ppid=16768 vsize=6736 CPUtime=1.56
/proc/16770/stat : 16770 (pcs.small) R 16768 16770 16306 0 -1 4194304 1498 822 0 0 156 0 0 0 25 0 1 0 60167678 6897664 944 996147200 134512640 135095119 4294956304 18446744073709551615 134638324 0 0 4096 0 0 0 0 17 1 0 0
/proc/16770/statm: 1684 944 378 142 0 638 0
Current children cumulated CPU time (s) 1.56
Current children cumulated vsize (KiB) 6736

[startup+1.70159 s]
/proc/loadavg: 1.94 1.98 1.99 3/82 16776
/proc/meminfo: memFree=1632272/2055920 swapFree=4192812/4192956
[pid=16770] ppid=16768 vsize=6736 CPUtime=1.66
/proc/16770/stat : 16770 (pcs.small) R 16768 16770 16306 0 -1 4194304 1506 822 0 0 166 0 0 0 25 0 1 0 60167678 6897664 952 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/16770/statm: 1684 952 378 142 0 638 0
Current children cumulated CPU time (s) 1.66
Current children cumulated vsize (KiB) 6736

Child status: 0
Real time (s): 1.76436
CPU time (s): 1.74273
CPU user time (s): 1.72874
CPU system time (s): 0.013997
CPU usage (%): 98.7741
Max. virtual memory (cumulated for all children) (KiB): 6736

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.72874
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2336
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= 21
involuntary context switches= 86

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node10 at 2009-07-16 09:56:46
IDJOB=2090184
IDBENCH=59696
IDSOLVER=734
FILE ID=node10/2090184-1247731006
PBS_JOBID= 9521561
Free space on /tmp= 66364 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/rand-2-30-15/normalized-rand-2-30-15-306-230-7_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2090184-1247731006/watcher-2090184-1247731006 -o /tmp/evaluation-result-2090184-1247731006/solver-2090184-1247731006 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 702877496 HOME/instance-2090184-1247731006.xml

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

MD5SUM BENCH= 1a80a4ae25992e7bcf91f881d62fd585
RANDOM SEED=702877496

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:       1634616 kB
Buffers:         79224 kB
Cached:         236092 kB
SwapCached:          0 kB
Active:         106060 kB
Inactive:       242324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1634616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2304 kB
Writeback:           0 kB
Mapped:          53456 kB
Slab:            58092 kB
Committed_AS:   639724 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 09:56:48