Trace number 2073563

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 0.798878 0.810604

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-27_ext.xml
MD5SUM52b2ac764766c58603d22566b55509ea
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 

0.01/0.05	c small-domain mode
0.01/0.05	c Seed is 269370964
0.01/0.05	c Constructing HOME/instance-2073563-1247712063.xml  with 133 constraints
0.68/0.79	c Solving 0 backtracks
0.77/0.81	s SATISFIABLE
0.77/0.81	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, 
0.77/0.81	v 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0.77/0.81	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-2073563-1247712063/watcher-2073563-1247712063 -o /tmp/evaluation-result-2073563-1247712063/solver-2073563-1247712063 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 269370964 HOME/instance-2073563-1247712063.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 2.01 2.04 4/81 16604
/proc/meminfo: memFree=1357776/2055920 swapFree=4192812/4192956
[pid=16604] ppid=16602 vsize=5356 CPUtime=0
/proc/16604/stat : 16604 (pcssolve) R 16602 16604 16386 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 58270514 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 213116316319 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16604/statm: 1339 241 200 169 0 50 0
[pid=16605] ppid=16604 vsize=5356 CPUtime=0
/proc/16605/stat : 16605 (pcssolve) R 16604 16604 16386 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 58270515 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 213116316319 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16605/statm: 1339 241 200 169 0 50 0

[startup+0.031682 s]
/proc/loadavg: 2.00 2.01 2.04 4/81 16604
/proc/meminfo: memFree=1357776/2055920 swapFree=4192812/4192956
[pid=16604] ppid=16602 vsize=5356 CPUtime=0.01
/proc/16604/stat : 16604 (pcssolve) S 16602 16604 16386 0 -1 4194304 339 2501 0 0 0 0 0 1 22 0 1 0 58270514 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 213116314436 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16604/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5356

[startup+0.102689 s]
/proc/loadavg: 2.00 2.01 2.04 4/81 16604
/proc/meminfo: memFree=1357776/2055920 swapFree=4192812/4192956
[pid=16604] ppid=16602 vsize=5848 CPUtime=0.07
/proc/16604/stat : 16604 (pcs.small) R 16602 16604 16386 0 -1 4194304 1048 3863 0 0 4 0 1 2 18 0 1 0 58270514 5988352 657 996147200 134512640 135095119 4294956304 18446744073709551615 134739366 0 0 4096 0 0 0 0 17 1 0 0
/proc/16604/statm: 1462 657 361 142 0 416 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5848

[startup+0.301729 s]
/proc/loadavg: 2.00 2.01 2.04 4/81 16604
/proc/meminfo: memFree=1357776/2055920 swapFree=4192812/4192956
[pid=16604] ppid=16602 vsize=9544 CPUtime=0.27
/proc/16604/stat : 16604 (pcs.small) R 16602 16604 16386 0 -1 4194304 2097 3863 0 0 23 1 1 2 19 0 1 0 58270514 9773056 1706 996147200 134512640 135095119 4294956304 18446744073709551615 134681696 0 0 4096 0 0 0 0 17 1 0 0
/proc/16604/statm: 2386 1706 362 142 0 1340 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9544

[startup+0.7018 s]
/proc/loadavg: 2.00 2.01 2.04 4/81 16604
/proc/meminfo: memFree=1357776/2055920 swapFree=4192812/4192956
[pid=16604] ppid=16602 vsize=14436 CPUtime=0.68
/proc/16604/stat : 16604 (pcs.small) R 16602 16604 16386 0 -1 4194304 4050 3863 0 0 63 2 1 2 23 0 1 0 58270514 14782464 2913 996147200 134512640 135095119 4294956304 18446744073709551615 134944924 0 0 4096 0 0 0 0 17 1 0 0
/proc/16604/statm: 3609 2913 374 142 0 2563 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 14436

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

[startup+0.802817 s]
/proc/loadavg: 2.00 2.01 2.04 4/81 16604
/proc/meminfo: memFree=1357776/2055920 swapFree=4192812/4192956
[pid=16604] ppid=16602 vsize=13756 CPUtime=0.77
/proc/16604/stat : 16604 (pcs.small) R 16602 16604 16386 0 -1 4194304 4153 3863 0 0 72 2 1 2 24 0 1 0 58270514 14086144 2786 996147200 134512640 135095119 4294956304 18446744073709551615 134918271 0 0 4096 0 0 0 0 17 1 0 0
/proc/16604/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): 0.810604
CPU time (s): 0.798878
CPU user time (s): 0.748886
CPU system time (s): 0.049992
CPU usage (%): 98.5534
Max. virtual memory (cumulated for all children) (KiB): 14436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.748886
system time used= 0.049992
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= 45

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node37 at 2009-07-16 04:41:03
IDJOB=2073563
IDBENCH=55990
IDSOLVER=734
FILE ID=node37/2073563-1247712063
PBS_JOBID= 9521431
Free space on /tmp= 66392 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-27_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073563-1247712063/watcher-2073563-1247712063 -o /tmp/evaluation-result-2073563-1247712063/solver-2073563-1247712063 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 269370964 HOME/instance-2073563-1247712063.xml

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

MD5SUM BENCH= 52b2ac764766c58603d22566b55509ea
RANDOM SEED=269370964

node37.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		: 3000.260
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		: 3000.260
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:       1358256 kB
Buffers:         83280 kB
Cached:         416044 kB
SwapCached:          0 kB
Active:         287776 kB
Inactive:       322028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1358256 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3868 kB
Writeback:           0 kB
Mapped:         130816 kB
Slab:            72928 kB
Committed_AS:   719780 kB
PageTables:       2004 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= 66392 MiB
End job on node37 at 2009-07-16 04:41:04