Trace number 2057008

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 0.3.2UNSAT 2.17067 2.1724

DiagnosticValue
ASSIGNMENTS11934

General information on the benchmark

Namecsp/QCP-15/
normalized-qcp-15-120-13_ext.xml
MD5SUMe163336b7fd297141773c350ceb1e4d5
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.68674
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints2520
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension2520
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
0.00/0.01	c Seed is 248146966
0.00/0.01	c Constructing HOME/instance-2057008-1247694205.xml  with 14280 constraints
0.00/0.07	c Solving 11934 backtracks 14 restarts
2.08/2.17	s UNSATISFIABLE
2.08/2.17	d ASSIGNMENTS 11934

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2057008-1247694205/watcher-2057008-1247694205 -o /tmp/evaluation-result-2057008-1247694205/solver-2057008-1247694205 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 248146966 HOME/instance-2057008-1247694205.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: 0.00 0.00 0.00 2/67 10319
/proc/meminfo: memFree=1329360/2055920 swapFree=4192812/4192956
[pid=10319] ppid=10317 vsize=5356 CPUtime=0
/proc/10319/stat : 10319 (pcssolve) S 10317 10319 10253 0 -1 4194304 305 0 0 0 0 0 0 0 18 0 1 0 56483052 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/10319/statm: 1339 242 201 169 0 50 0
[pid=10320] ppid=10319 vsize=3544 CPUtime=0
/proc/10320/stat : 10320 (fgrep) R 10319 10319 10253 0 -1 4194304 71 0 0 0 0 0 0 0 18 0 1 0 56483052 3629056 39 996147200 4194304 4274172 548682068976 18446744073709551615 231961903960 0 0 4096 0 0 0 0 17 1 0 0
/proc/10320/statm: 886 56 40 19 0 10 0
[pid=10321] ppid=10319 vsize=200 CPUtime=0
/proc/10321/stat : 10321 (grep) R 10319 10319 10253 0 -1 4194304 46 0 0 0 0 0 0 0 20 0 1 0 56483052 204800 24 996147200 4194304 4274172 548682069040 18446744073709551615 231959754121 0 0 4096 0 0 0 0 17 1 0 0
/proc/10321/statm: 50 24 17 19 0 4 0

[startup+0.089908 s]
/proc/loadavg: 0.00 0.00 0.00 2/67 10319
/proc/meminfo: memFree=1329360/2055920 swapFree=4192812/4192956
[pid=10319] ppid=10317 vsize=6396 CPUtime=0.07
/proc/10319/stat : 10319 (pcs.small) R 10317 10319 10253 0 -1 4194304 1390 824 0 0 7 0 0 0 17 0 1 0 56483052 6549504 901 996147200 134512640 135095119 4294956304 18446744073709551615 134642962 0 0 4096 0 0 0 0 17 1 0 0
/proc/10319/statm: 1599 901 378 142 0 553 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6396

[startup+0.102908 s]
/proc/loadavg: 0.00 0.00 0.00 2/67 10319
/proc/meminfo: memFree=1329360/2055920 swapFree=4192812/4192956
[pid=10319] ppid=10317 vsize=6396 CPUtime=0.08
/proc/10319/stat : 10319 (pcs.small) R 10317 10319 10253 0 -1 4194304 1396 824 0 0 8 0 0 0 17 0 1 0 56483052 6549504 907 996147200 134512640 135095119 4294956304 18446744073709551615 134641425 0 0 4096 0 0 0 0 17 1 0 0
/proc/10319/statm: 1599 907 378 142 0 553 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6396

[startup+0.302935 s]
/proc/loadavg: 0.00 0.00 0.00 2/67 10319
/proc/meminfo: memFree=1329360/2055920 swapFree=4192812/4192956
[pid=10319] ppid=10317 vsize=6680 CPUtime=0.28
/proc/10319/stat : 10319 (pcs.small) R 10317 10319 10253 0 -1 4194304 1465 824 0 0 28 0 0 0 19 0 1 0 56483052 6840320 976 996147200 134512640 135095119 4294956304 18446744073709551615 134617324 0 0 4096 0 0 0 0 17 1 0 0
/proc/10319/statm: 1670 976 378 142 0 624 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6680

[startup+0.701989 s]
/proc/loadavg: 0.00 0.00 0.00 2/67 10319
/proc/meminfo: memFree=1329360/2055920 swapFree=4192812/4192956
[pid=10319] ppid=10317 vsize=8104 CPUtime=0.68
/proc/10319/stat : 10319 (pcs.small) R 10317 10319 10253 0 -1 4194304 1892 824 0 0 68 0 0 0 22 0 1 0 56483052 8298496 1176 996147200 134512640 135095119 4294956304 18446744073709551615 134838311 0 0 4096 0 0 0 0 17 1 0 0
/proc/10319/statm: 2026 1176 378 142 0 980 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 8104

[startup+1.5011 s]
/proc/loadavg: 0.00 0.00 0.00 2/68 10325
/proc/meminfo: memFree=1325576/2055920 swapFree=4192812/4192956
[pid=10319] ppid=10317 vsize=9640 CPUtime=1.48
/proc/10319/stat : 10319 (pcs.small) R 10317 10319 10253 0 -1 4194304 2381 824 0 0 147 1 0 0 25 0 1 0 56483052 9871360 1536 996147200 134512640 135095119 4294956304 18446744073709551615 134642970 0 0 4096 0 0 0 0 17 1 0 0
/proc/10319/statm: 2410 1536 378 142 0 1364 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 9640

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

[startup+1.90115 s]
/proc/loadavg: 0.00 0.00 0.00 2/68 10325
/proc/meminfo: memFree=1325576/2055920 swapFree=4192812/4192956
[pid=10319] ppid=10317 vsize=10024 CPUtime=1.88
/proc/10319/stat : 10319 (pcs.small) R 10317 10319 10253 0 -1 4194304 2560 824 0 0 187 1 0 0 25 0 1 0 56483052 10264576 1715 996147200 134512640 135095119 4294956304 18446744073709551615 134582516 0 0 4096 0 0 0 0 17 1 0 0
/proc/10319/statm: 2506 1715 378 142 0 1460 0
Current children cumulated CPU time (s) 1.88
Current children cumulated vsize (KiB) 10024

[startup+2.10118 s]
/proc/loadavg: 0.00 0.00 0.00 2/68 10325
/proc/meminfo: memFree=1323464/2055920 swapFree=4192812/4192956
[pid=10319] ppid=10317 vsize=10280 CPUtime=2.08
/proc/10319/stat : 10319 (pcs.small) R 10317 10319 10253 0 -1 4194304 2655 824 0 0 207 1 0 0 25 0 1 0 56483052 10526720 1810 996147200 134512640 135095119 4294956304 18446744073709551615 7640699 0 0 4096 0 0 0 0 17 1 0 0
/proc/10319/statm: 2570 1810 378 142 0 1524 0
Current children cumulated CPU time (s) 2.08
Current children cumulated vsize (KiB) 10280

Child status: 0
Real time (s): 2.1724
CPU time (s): 2.17067
CPU user time (s): 2.14967
CPU system time (s): 0.020996
CPU usage (%): 99.9203
Max. virtual memory (cumulated for all children) (KiB): 10280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.14967
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3506
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= 26
involuntary context switches= 15

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node71 at 2009-07-15 23:43:25
IDJOB=2057008
IDBENCH=53326
IDSOLVER=734
FILE ID=node71/2057008-1247694205
PBS_JOBID= 9521172
Free space on /tmp= 66396 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/QCP-15/normalized-qcp-15-120-13_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2057008-1247694205/watcher-2057008-1247694205 -o /tmp/evaluation-result-2057008-1247694205/solver-2057008-1247694205 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 248146966 HOME/instance-2057008-1247694205.xml

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

MD5SUM BENCH= e163336b7fd297141773c350ceb1e4d5
RANDOM SEED=248146966

node71.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		: 3000.222
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		: 3000.222
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:       1329904 kB
Buffers:         83320 kB
Cached:         536296 kB
SwapCached:          0 kB
Active:         188568 kB
Inactive:       446332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1329904 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1900 kB
Writeback:           0 kB
Mapped:          25040 kB
Slab:            76756 kB
Committed_AS:   504624 kB
PageTables:       1664 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= 66396 MiB
End job on node71 at 2009-07-15 23:43:27