Trace number 214309

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, and are wall clock time (not CPU 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
sugar 0.40SAT 2.28 2.71301

General information on the benchmark

NamepseudoSeries/routing/
s4-4-3-10.xml
MD5SUM9a3a0c58439b05fb966081b47dcd7407
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.28
SatisfiableYES
(Un)Satisfiability was proved
Number of variables840
Number of constraints2528
Maximum constraint arity35
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2528
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/214309-1170099849/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/214309-1170099849/unknown.xml [Mon Jan 29 20:44:12 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/214309-1170099849/unknown.xml /tmp/evaluation/214309-1170099849/sugar25201.csp [Mon Jan 29 20:44:12 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/214309-1170099849/sugar-v0-40.jar -convert /tmp/evaluation/214309-1170099849/unknown.xml /tmp/evaluation/214309-1170099849/sugar25201.csp
0.17	c BEGIN convert /tmp/evaluation/214309-1170099849/unknown.xml
0.75	c END convert (0.581389 seconds)
0.80	c # CONVERT_XML  END : /tmp/evaluation/214309-1170099849/sugar25201.csp 134427 bytes (1 seconds) [Mon Jan 29 20:44:13 2007]
0.80	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.80	
0.80	c # GENERATE_SAT  BEGIN : /tmp/evaluation/214309-1170099849/sugar25201.bcnf [Mon Jan 29 20:44:13 2007]
0.80	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/214309-1170099849/sugar-v0-40.jar -bcnf -map /tmp/evaluation/214309-1170099849/sugar25201.map /tmp/evaluation/214309-1170099849/sugar25201.csp /tmp/evaluation/214309-1170099849/sugar25201.bcnf
0.92	c BEGIN parse /tmp/evaluation/214309-1170099849/sugar25201.csp
1.81	c END parse (0.887229 seconds)
1.81	c BEGIN simplify
1.81	c END simplify (0.003674 seconds)
1.81	c BEGIN encode /tmp/evaluation/214309-1170099849/sugar25201.bcnf
1.90	c END encode (0.088432 seconds)
1.95	c # GENERATE_SAT  END : 4664 variables 23700 clauses 334584 bytes (1 seconds) [Mon Jan 29 20:44:14 2007]
1.95	c # GENERATE_SAT  CPU : 0.03 = 0.02 + 0.01 + 0 + 0
1.95	
1.95	c # SOLVE_SAT  BEGIN : /tmp/evaluation/214309-1170099849/sugar25201.bcnf [Mon Jan 29 20:44:14 2007]
1.95	c # CMD : /tmp/evaluation/214309-1170099849/minisat /tmp/evaluation/214309-1170099849/sugar25201.bcnf /tmp/evaluation/214309-1170099849/sugar25201.out
1.97	c ==================================[MINISAT]===================================
1.97	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.97	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.97	c ==============================================================================
1.97	c |         0 |   16596    44772 |    5532       0        0     nan |  0.000 % |
1.97	c |       101 |   16596    44772 |    6085     101     1032    10.2 | 24.700 % |
1.99	c |       251 |   16605    44772 |    6693     241     2501    10.4 | 24.914 % |
2.00	c |       477 |   16559    44703 |    7363     462     4822    10.4 | 25.107 % |
2.03	c |       814 |   16509    44631 |    8099     798    10854    13.6 | 25.107 % |
2.06	c |      1320 |   16486    44574 |    8909    1268    15789    12.5 | 25.815 % |
2.12	c |      2081 |   16269    44217 |    9800    1960    24850    12.7 | 26.672 % |
2.23	c |      3222 |   16079    43902 |   10780    3021    44285    14.7 | 27.166 % |
2.38	c |      4931 |   13778    40101 |   11858    4010    53799    13.4 | 41.188 % |
2.40	c ==============================================================================
2.40	c restarts              : 9
2.40	c conflicts             : 5147           (11861 /sec)
2.40	c decisions             : 7601           (17516 /sec)
2.40	c propagations          : 1418452        (3268820 /sec)
2.40	c conflict literals     : 64583          (17.46 % deleted)
2.40	c Memory used           : 2.70 MB
2.40	c CPU time              : 0.433934 s
2.40	c 
2.40	c SATISFIABLE
2.41	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 20:44:14 2007]
2.41	c # SOLVE_SAT  CPU : 0.45 = 0.01 + 0 + 0.43 + 0.01
2.41	
2.41	c # RESULT : SATISFIABLE
2.41	
2.41	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 20:44:14 2007]
2.53	c BEGIN read SAT output /tmp/evaluation/214309-1170099849/sugar25201.out
2.56	c END read SAT output (0.0321 seconds)
2.56	c BEGIN write solution /tmp/evaluation/214309-1170099849/sugar25201.sol
2.68	c END write solution (0.124657 seconds)
2.69	s SATISFIABLE
2.70	v 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 1 1 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2.71	c # OUTPUT_SOL  END :  (1 seconds) [Mon Jan 29 20:44:15 2007]
2.71	c # OUTPUT_SOL  CPU : 0.27 = 0 + 0 + 0.24 + 0.03
2.71	
2.71	c # MAIN  END :  (3 seconds) [Mon Jan 29 20:44:15 2007]
2.71	c # MAIN  CPU : 0.75 = 0.03 + 0.01 + 0.67 + 0.04
2.71

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-214309-1170099849 -o ROOT/results/node13/solver-214309-1170099849 -C 1800 -M 900 /tmp/evaluation/214309-1170099849/solver /tmp/evaluation/214309-1170099849 /tmp/evaluation/214309-1170099849/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 1.97 2.10 2.15 5/94 25202
/proc/meminfo: memFree=512920/2055920 swapFree=4192812/4192956
[pid=25201] ppid=25199 vsize=6268 CPUtime=0
/proc/25201/stat : 25201 (sugar) R 25199 25201 24532 0 -1 4194304 311 0 0 0 0 0 0 0 20 0 1 0 29939641 6418432 47 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 269754627465 0 0 4096 0 0 0 0 17 1 0 0
/proc/25201/statm: 1567 47 36 3 0 8 0

[startup+0.105771 s]
/proc/loadavg: 1.97 2.10 2.15 5/94 25202
/proc/meminfo: memFree=512920/2055920 swapFree=4192812/4192956
[pid=25201] ppid=25199 vsize=13724 CPUtime=0.03
/proc/25201/stat : 25201 (sugar) S 25199 25201 24532 0 -1 4194304 1112 0 0 0 3 0 0 0 20 0 1 0 29939641 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 269766144098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25201/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.520825 s]
/proc/loadavg: 1.97 2.10 2.15 5/94 25202
/proc/meminfo: memFree=512920/2055920 swapFree=4192812/4192956
[pid=25201] ppid=25199 vsize=13724 CPUtime=0.03
/proc/25201/stat : 25201 (sugar) S 25199 25201 24532 0 -1 4194304 1121 0 0 0 3 0 0 0 15 0 1 0 29939641 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 269766144098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25201/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+1.34293 s]
/proc/loadavg: 1.97 2.10 2.15 4/103 25218
/proc/meminfo: memFree=486672/2055920 swapFree=4192812/4192956
[pid=25201] ppid=25199 vsize=13724 CPUtime=0.03
/proc/25201/stat : 25201 (sugar) S 25199 25201 24532 0 -1 4194304 1188 0 0 0 3 0 0 0 15 0 1 0 29939641 14053376 808 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 269766144098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25201/statm: 3431 808 370 3 0 531 0
[pid=25203] ppid=25201 vsize=0 CPUtime=0.68
/proc/25203/stat : 25203 (java) Z 25201 25201 24532 0 -1 1036 7862 0 1 0 63 5 0 0 16 0 1 0 29939646 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/25203/statm: 0 0 0 0 0 0 0
[pid=25211] ppid=25201 vsize=807364 CPUtime=0.51
/proc/25211/stat : 25211 (java) S 25201 25201 24532 0 -1 0 6702 0 1 0 48 3 0 0 17 0 8 0 29939722 826740736 6452 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/25211/statm: 201841 6452 1506 14 0 189119 0
[pid=25211/tid=25212] ppid=25201 vsize=807364 CPUtime=0.02
/proc/25211/task/25212/stat : 25212 (java) S 25201 25201 24532 0 -1 64 522 0 0 0 2 0 0 0 16 0 8 0 29939725 826740736 6452 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=25211/tid=25213] ppid=25201 vsize=807364 CPUtime=0
/proc/25211/task/25213/stat : 25213 (java) S 25201 25201 24532 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 29939725 826740736 6452 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=25211/tid=25214] ppid=25201 vsize=807364 CPUtime=0
/proc/25211/task/25214/stat : 25214 (java) S 25201 25201 24532 0 -1 64 5 0 0 0 0 0 0 0 15 0 8 0 29939725 826740736 6452 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=25211/tid=25215] ppid=25201 vsize=807364 CPUtime=0
/proc/25211/task/25215/stat : 25215 (java) S 25201 25201 24532 0 -1 64 0 0 0 0 0 0 0 0 18 0 8 0 29939729 826740736 6452 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=25211/tid=25216] ppid=25201 vsize=807364 CPUtime=0.11
/proc/25211/task/25216/stat : 25216 (java) R 25201 25201 24532 0 -1 64 392 0 0 0 11 0 0 0 20 0 8 0 29939729 826740736 6452 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4160647107 0 4 0 23759 0 0 0 -1 1 0 0
[pid=25211/tid=25217] ppid=25201 vsize=807364 CPUtime=0
/proc/25211/task/25217/stat : 25217 (java) S 25201 25201 24532 0 -1 64 3 0 0 0 0 0 0 0 19 0 8 0 29939729 826740736 6452 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=25211/tid=25218] ppid=25201 vsize=807364 CPUtime=0
/proc/25211/task/25218/stat : 25218 (java) S 25201 25201 24532 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 29939729 826740736 6452 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.22
Current children cumulated vsize (KiB) 821088

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 25201 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=745886 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=60990
CPU time returned by wait4() is 0.806876
while last known CPU time is 2.28

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 2.71301
CPU time (s): 2.28
CPU user time (s): 2.16
CPU system time (s): 0.12
CPU usage (%): 84.0394
Max. virtual memory (cumulated for all children) (KiB): 821088

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.745886
system time used= 0.06099
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5845
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 423
involuntary context switches= 418

runsolver used 0.002999 s user time and 0.017997 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Mon Jan 29 19:44:10 UTC 2007


IDJOB= 214309
IDBENCH= 4914
IDSOLVER= 86
FILE ID= node13/214309-1170099849

PBS_JOBID= 3689479

Free space on /tmp= 57818 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/pseudoSeries/routing/s4-4-3-10.xml
COMMAND LINE= /tmp/evaluation/214309-1170099849/solver /tmp/evaluation/214309-1170099849 /tmp/evaluation/214309-1170099849/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-214309-1170099849 -o ROOT/results/node13/solver-214309-1170099849 -C 1800 -M 900  /tmp/evaluation/214309-1170099849/solver /tmp/evaluation/214309-1170099849 /tmp/evaluation/214309-1170099849/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  9a3a0c58439b05fb966081b47dcd7407

RANDOM SEED= 786857067

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.236
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		: 3000.236
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:        521656 kB
Buffers:          5824 kB
Cached:        1209472 kB
SwapCached:          0 kB
Active:         284888 kB
Inactive:      1177420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        521656 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:          485620 kB
Writeback:           0 kB
Mapped:         272524 kB
Slab:            56512 kB
Committed_AS:   545004 kB
PageTables:       2572 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= 57792 MiB



End job on node13 on Mon Jan 29 19:44:16 UTC 2007