Trace number 2081975

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 0.235963 0.2533

General information on the benchmark

Namecsp/rlfapScens/
normalized-scen2.xml
MD5SUM31a4c465ca1f11a03620a8b9cb7922e0
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.135978
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints1235
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1235
Global constraints used (with number of constraints)

Solver Data 

0.08/0.13	c bpsolver version 6.29.2009
0.08/0.13	c converting(HOME/instance-2081975-1247374503)
0.18/0.20	c Converted in 86 ms
0.18/0.22	c solving(HOME/instance-2081975-1247374503,1800000)
0.18/0.22	c solving(HOME/instance-2081975-1247374503,1800000)
0.18/0.24	c (ffc_inout)
0.18/0.24	s SATISFIABLE
0.18/0.24	v 16 254 414 652 30 268 254 16 268 30 114 352 44 282 58 296 366 128 456 694 456 694 254 16 324 86 268 30 72 310 254 16 114 352 30 268 366 128 72 310 72 310 142 380 142 380 72 310 380 142 380 142 254 16 380 142 86 324 16 254 16 254 394 156 254 16 128 366 366 128 254 16 254 16 100 338 296 58 268 30 296 58 282 44 268 30 268 30 338 100 30 268 282 44 58 296 338 100 16 254 16 254 268 30 86 324 16 254 114 352 30 268 352 114 30 268 366 128 366 128 58 296 352 114 30 268 114 352 338 100 268 30 338 100 72 310 142 380 44 282 30 268 44 282 30 268 16 254 30 268 58 296 254 16 142 380 44 282 72 310 142 380 58 296 394 156 456 694 100 338 30 268 30 268 30 268 254 16 58 296 16 254 30 268 338 100 268 30 100 338 30 268 338 100 268 30 282 44 268 30 
0.18/0.25	
0.18/0.25	c Time=38 ms Backtracks=0
0.18/0.25

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-2081975-1247374503/watcher-2081975-1247374503 -o /tmp/evaluation-result-2081975-1247374503/solver-2081975-1247374503 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2081975-1247374503 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: 2.27 2.08 2.02 4/84 26560
/proc/meminfo: memFree=1028736/2055912 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=18576 CPUtime=0
/proc/26560/stat : 26560 (runsolver) R 26558 26560 21858 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 24514852 19021824 284 996147200 4194304 4302564 548682068528 18446744073709551615 255372881191 0 0 4096 24578 0 0 0 17 1 0 0
/proc/26560/statm: 4644 284 249 26 0 2626 0

[startup+0.077988 s]
/proc/loadavg: 2.27 2.08 2.02 4/84 26560
/proc/meminfo: memFree=1028736/2055912 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=62208 CPUtime=0.05
/proc/26560/stat : 26560 (bprolog) R 26558 26560 21858 0 -1 4194304 1118 0 0 0 2 3 0 0 18 0 1 0 24514852 63700992 831 996147200 134512640 135105188 4294956096 18446744073709551615 134687887 0 0 4096 2 0 0 0 17 0 0 0
/proc/26560/statm: 15552 831 176 144 0 15036 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 62208

[startup+0.101983 s]
/proc/loadavg: 2.27 2.08 2.02 4/84 26560
/proc/meminfo: memFree=1028736/2055912 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=62208 CPUtime=0.08
/proc/26560/stat : 26560 (bprolog) R 26558 26560 21858 0 -1 4194304 1119 0 0 0 4 4 0 0 18 0 1 0 24514852 63700992 832 996147200 134512640 135105188 4294956096 18446744073709551615 134557584 0 0 4096 2 0 0 0 17 0 0 0
/proc/26560/statm: 15552 832 176 144 0 15036 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 62208

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

[startup+0.201993 s]
/proc/loadavg: 2.27 2.08 2.02 4/84 26560
/proc/meminfo: memFree=1028736/2055912 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=62208 CPUtime=0.18
/proc/26560/stat : 26560 (bprolog) R 26558 26560 21858 0 -1 4194304 1122 0 0 0 9 9 0 0 19 0 1 0 24514852 63700992 835 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/26560/statm: 15552 835 176 144 0 15036 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 62208

Child status: 0
Real time (s): 0.2533
CPU time (s): 0.235963
CPU user time (s): 0.138978
CPU system time (s): 0.096985
CPU usage (%): 93.1555
Max. virtual memory (cumulated for all children) (KiB): 62208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.138978
system time used= 0.096985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1609
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= 2
involuntary context switches= 238

runsolver used 0.006998 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node78 at 2009-07-12 06:55:03
IDJOB=2081975
IDBENCH=57515
IDSOLVER=770
FILE ID=node78/2081975-1247374503
PBS_JOBID= 9507058
Free space on /tmp= 126812 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/rlfapScens/normalized-scen2.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081975-1247374503/watcher-2081975-1247374503 -o /tmp/evaluation-result-2081975-1247374503/solver-2081975-1247374503 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2081975-1247374503 1800

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

MD5SUM BENCH= 31a4c465ca1f11a03620a8b9cb7922e0
RANDOM SEED=820717942

node78.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		: 3000.232
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		: 3000.232
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:      2055912 kB
MemFree:       1029216 kB
Buffers:         63312 kB
Cached:         164148 kB
SwapCached:          0 kB
Active:         869684 kB
Inactive:        94608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055912 kB
LowFree:       1029216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2060 kB
Writeback:           0 kB
Mapped:         752496 kB
Slab:            45980 kB
Committed_AS:   927556 kB
PageTables:       3404 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126808 MiB
End job on node78 at 2009-07-12 06:55:03