Trace number 2073321

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 0.792879 0.804813

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-8_ext.xml
MD5SUMa4f9e7aefae7ad10223acb0ad88dbbd6
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.792879
Satisfiable
(Un)Satisfiability was proved
Number of variables21
Number of constraints133
Maximum constraint arity18
Maximum domain size2
Number of constraints which are defined in extension133
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.04	c small-domain mode
0.00/0.05	c Seed is 1878970269
0.00/0.05	c Constructing HOME/instance-2073321-1247711716.xml  with 133 constraints
0.67/0.78	c Solving 0 backtracks
0.77/0.80	s SATISFIABLE
0.77/0.80	c V0=0, V1=0, V2=0, V3=0, V4=0, V5=0, V6=0, V7=0, V8=0, V9=0, V10=0, V11=0, V12=0, V13=0, V14=0, V15=0, V16=0, V17=0, V18=0, V19=0, V20=0, 
0.77/0.80	v 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0.77/0.80	d ASSIGNMENTS 0

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-2073321-1247711716/watcher-2073321-1247711716 -o /tmp/evaluation-result-2073321-1247711716/solver-2073321-1247711716 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1878970269 HOME/instance-2073321-1247711716.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 2.01 4/82 18789
/proc/meminfo: memFree=1526576/2055920 swapFree=4192812/4192956
[pid=18789] ppid=18787 vsize=18576 CPUtime=0
/proc/18789/stat : 18789 (runsolver) R 18787 18789 18528 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 58235447 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 264840473895 0 0 4096 24578 0 0 0 17 1 0 0
/proc/18789/statm: 4644 284 249 26 0 2626 0

[startup+0.0896649 s]
/proc/loadavg: 2.00 2.00 2.01 4/82 18789
/proc/meminfo: memFree=1526576/2055920 swapFree=4192812/4192956
[pid=18789] ppid=18787 vsize=5716 CPUtime=0.06
/proc/18789/stat : 18789 (pcs.small) R 18787 18789 18528 0 -1 4194304 987 3863 0 0 3 0 1 2 18 0 1 0 58235447 5853184 596 996147200 134512640 135095119 4294956304 18446744073709551615 134741584 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 1429 596 361 142 0 383 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5716

[startup+0.101662 s]
/proc/loadavg: 2.00 2.00 2.01 4/82 18789
/proc/meminfo: memFree=1526576/2055920 swapFree=4192812/4192956
[pid=18789] ppid=18787 vsize=5848 CPUtime=0.07
/proc/18789/stat : 18789 (pcs.small) R 18787 18789 18528 0 -1 4194304 1050 3863 0 0 4 0 1 2 18 0 1 0 58235447 5988352 659 996147200 134512640 135095119 4294956304 18446744073709551615 134739360 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 1462 659 361 142 0 416 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5848

[startup+0.301691 s]
/proc/loadavg: 2.00 2.00 2.01 4/82 18789
/proc/meminfo: memFree=1526576/2055920 swapFree=4192812/4192956
[pid=18789] ppid=18787 vsize=9544 CPUtime=0.28
/proc/18789/stat : 18789 (pcs.small) R 18787 18789 18528 0 -1 4194304 2097 3863 0 0 24 1 1 2 19 0 1 0 58235447 9773056 1706 996147200 134512640 135095119 4294956304 18446744073709551615 134681668 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 2386 1706 362 142 0 1340 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 9544

[startup+0.70173 s]
/proc/loadavg: 2.00 2.00 2.01 4/82 18789
/proc/meminfo: memFree=1526576/2055920 swapFree=4192812/4192956
[pid=18789] ppid=18787 vsize=14436 CPUtime=0.67
/proc/18789/stat : 18789 (pcs.small) R 18787 18789 18528 0 -1 4194304 4051 3863 0 0 63 1 1 2 23 0 1 0 58235447 14782464 2914 996147200 134512640 135095119 4294956304 18446744073709551615 134944929 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 3609 2914 375 142 0 2563 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 14436

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

[startup+0.801737 s]
/proc/loadavg: 2.00 2.00 2.01 4/82 18789
/proc/meminfo: memFree=1526576/2055920 swapFree=4192812/4192956
[pid=18789] ppid=18787 vsize=13756 CPUtime=0.77
/proc/18789/stat : 18789 (pcs.small) R 18787 18789 18528 0 -1 4194304 4153 3863 0 0 73 1 1 2 24 0 1 0 58235447 14086144 2786 996147200 134512640 135095119 4294956304 18446744073709551615 134616997 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 3439 2786 389 142 0 2393 0
Current children cumulated CPU time (s) 0.77
Current children cumulated vsize (KiB) 13756

Child status: 0
Real time (s): 0.804813
CPU time (s): 0.792879
CPU user time (s): 0.748886
CPU system time (s): 0.043993
CPU usage (%): 98.5172
Max. virtual memory (cumulated for all children) (KiB): 14436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.748886
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8019
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= 48

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node44 at 2009-07-16 04:35:16
IDJOB=2073321
IDBENCH=55968
IDSOLVER=734
FILE ID=node44/2073321-1247711716
PBS_JOBID= 9521388
Free space on /tmp= 66280 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-8_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073321-1247711716/watcher-2073321-1247711716 -o /tmp/evaluation-result-2073321-1247711716/solver-2073321-1247711716 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1878970269 HOME/instance-2073321-1247711716.xml

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

MD5SUM BENCH= a4f9e7aefae7ad10223acb0ad88dbbd6
RANDOM SEED=1878970269

node44.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		: 3000.219
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		: 3000.219
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:       1527056 kB
Buffers:         72480 kB
Cached:         297780 kB
SwapCached:          0 kB
Active:         147316 kB
Inactive:       295952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1527056 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3856 kB
Writeback:           0 kB
Mapped:          93364 kB
Slab:            70676 kB
Committed_AS:   653404 kB
PageTables:       1940 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= 66276 MiB
End job on node44 at 2009-07-16 04:35:17