Trace number 2061977

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
bpsolver 09SAT 0.396938 0.408347

General information on the benchmark

Namecsp/allsquares/
normalized-squares-10-10.xml
MD5SUMac6b38f7656460c0b2b315e128e387a9
Bench CategoryAlldiff+Cumul+Elt+WSum (alldiff,cumulative,element,weightedsum)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.038993
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints228
Maximum constraint arity10
Maximum domain size21
Number of constraints which are defined in extension0
Number of constraints which are defined in intension181
Global constraints used (with number of constraints)cumulative(2),weightedsum(45)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2061977-1247327936)
0.00/0.08	c Converted in 28 ms
0.00/0.08	c solving(HOME/instance-2061977-1247327936,1800000)
0.00/0.08	c solving(HOME/instance-2061977-1247327936,1800000)
0.39/0.40	c (ff_inout)
0.39/0.40	s SATISFIABLE
0.39/0.40	v 10 10 5 13 8 7 0 13 12 0 0 8 18 17 16 10 11 9 0 0 0 0 1 0 0 1 1 0 1 0 1 0 0 0 1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 0 0 0 0 1 0 0 0 1 1 0 1 0 1 0 0 0 1 0 0 0 1 0 0 1 1 0 1 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 0 0 1 0 1 0 0 0 1 0 1 0 1 0 0 0 0 0 1 0 0 0 1 0 1 0 1 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 1 0 0 1 0 0 0 1 0 0 0 1 0 1 0 0 0 1 0 0 
0.39/0.40	
0.39/0.40	c Time=320 ms Backtracks=1554
0.39/0.40

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-2061977-1247327936/watcher-2061977-1247327936 -o /tmp/evaluation-result-2061977-1247327936/solver-2061977-1247327936 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2061977-1247327936 1800 

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 1.91 4/72 12156
/proc/meminfo: memFree=1350768/2055920 swapFree=4192952/4192956
[pid=12156] ppid=12154 vsize=7000 CPUtime=0
/proc/12156/stat : 12156 (bprolog) R 12154 12156 9863 0 -1 4194304 556 0 0 0 0 0 0 0 20 0 1 0 19860260 7168000 274 996147200 134512640 135105188 4294956096 18446744073709551615 134530926 0 0 4096 0 0 0 0 17 1 0 0
/proc/12156/statm: 1750 274 72 144 0 1234 0

[startup+0.168524 s]
/proc/loadavg: 2.00 2.00 1.91 4/72 12156
/proc/meminfo: memFree=1350768/2055920 swapFree=4192952/4192956
[pid=12156] ppid=12154 vsize=72444 CPUtime=0.15
/proc/12156/stat : 12156 (bprolog) R 12154 12156 9863 0 -1 4194304 1295 0 0 0 12 3 0 0 20 0 2 0 19860260 74182656 1005 996147200 134512640 135105188 4294956096 18446744073709551615 135014711 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/12156/statm: 18111 1005 201 144 0 17595 0
Current children cumulated CPU time (s) 0.15
Current children cumulated vsize (KiB) 72444

[startup+0.201526 s]
/proc/loadavg: 2.00 2.00 1.91 4/72 12156
/proc/meminfo: memFree=1350768/2055920 swapFree=4192952/4192956
[pid=12156] ppid=12154 vsize=72444 CPUtime=0.19
/proc/12156/stat : 12156 (bprolog) R 12154 12156 9863 0 -1 4194304 1296 0 0 0 16 3 0 0 21 0 2 0 19860260 74182656 1006 996147200 134512640 135105188 4294956096 18446744073709551615 134630194 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/12156/statm: 18111 1006 201 144 0 17595 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 72444

[startup+0.301537 s]
/proc/loadavg: 2.00 2.00 1.91 4/72 12156
/proc/meminfo: memFree=1350768/2055920 swapFree=4192952/4192956
[pid=12156] ppid=12154 vsize=72444 CPUtime=0.29
/proc/12156/stat : 12156 (bprolog) R 12154 12156 9863 0 -1 4194304 1296 0 0 0 26 3 0 0 22 0 2 0 19860260 74182656 1006 996147200 134512640 135105188 4294956096 18446744073709551615 134607722 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/12156/statm: 18111 1006 201 144 0 17595 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 72444

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

[startup+0.401548 s]
/proc/loadavg: 2.00 2.00 1.91 4/72 12156
/proc/meminfo: memFree=1350768/2055920 swapFree=4192952/4192956
[pid=12156] ppid=12154 vsize=72444 CPUtime=0.39
/proc/12156/stat : 12156 (bprolog) R 12154 12156 9863 0 -1 4194304 1297 0 0 0 36 3 0 0 23 0 2 0 19860260 74182656 1007 996147200 134512640 135105188 4294956096 18446744073709551615 134630194 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/12156/statm: 18111 1007 201 144 0 17595 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 72444

Child status: 0
Real time (s): 0.408347
CPU time (s): 0.396938
CPU user time (s): 0.363944
CPU system time (s): 0.032994
CPU usage (%): 97.2061
Max. virtual memory (cumulated for all children) (KiB): 72444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.363944
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1297
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= 5
involuntary context switches= 240

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node19 at 2009-07-11 17:58:56
IDJOB=2061977
IDBENCH=53857
IDSOLVER=770
FILE ID=node19/2061977-1247327936
PBS_JOBID= 9506589
Free space on /tmp= 66432 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/allsquares/normalized-squares-10-10.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2061977-1247327936/watcher-2061977-1247327936 -o /tmp/evaluation-result-2061977-1247327936/solver-2061977-1247327936 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2061977-1247327936 1800

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

MD5SUM BENCH= ac6b38f7656460c0b2b315e128e387a9
RANDOM SEED=1616301145

node19.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		: 3000.211
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		: 3000.211
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:       1351248 kB
Buffers:         46412 kB
Cached:         495408 kB
SwapCached:          4 kB
Active:         169116 kB
Inactive:       484344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1351248 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            1348 kB
Writeback:           0 kB
Mapped:         123228 kB
Slab:            36268 kB
Committed_AS:   223940 kB
PageTables:       2000 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= 66428 MiB
End job on node19 at 2009-07-11 17:58:57