Trace number 421993

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
minisat SAT 2007UNSAT 74.9146 75.0453

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-10-11-u.cnf
MD5SUM72bf29e65f8337564b4a44baea32f1cb
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark74.9146
Satisfiable
(Un)Satisfiability was proved
Number of variables192890
Number of clauses855991
Sum of the clauses size1944492
Maximum clause length10
Minimum clause length1
Number of clauses of size 116350
Number of clauses of size 2701001
Number of clauses of size 3101900
Number of clauses of size 44080
Number of clauses of size 516320
Number of clauses of size over 516340

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  192890                                               |
0.00/0.00	c |  Number of clauses:    855991                                               |
0.99/1.05	c |  Parsing time:         0.95         s                                       |
3.98/4.02	c ============================[ Search Statistics ]==============================
3.98/4.02	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
3.98/4.02	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
3.98/4.02	c ===============================================================================
3.98/4.02	c |         0 |   47086   279918   715451 |    93306        0    nan |  0.000 % |
4.18/4.27	c |       100 |   47057   279918   715451 |   102636       96     31 | 49.167 % |
4.58/4.69	c |       250 |   46804   279918   715451 |   112900      241     47 | 51.141 % |
4.88/4.97	c |       476 |   46801   279918   715451 |   124190      465     51 | 51.663 % |
5.38/5.43	c |       815 |   46758   279918   715451 |   136609      798     56 | 51.749 % |
6.48/6.50	c |      1321 |   39350   228273   590440 |   150270     1242     90 | 52.380 % |
8.37/8.49	c |      2080 |   37550   216426   562284 |   165297     1982     81 | 53.000 % |
10.98/11.07	c |      3222 |   36966   213054   554365 |   181826     3107     92 | 53.566 % |
15.26/15.34	c |      4930 |   36391   208499   543658 |   200009     4771    114 | 53.597 % |
20.85/20.96	c |      7492 |   36239   207563   541367 |   220010     6187    112 | 53.679 % |
29.73/29.87	c |     11337 |   36218   207465   541136 |   242011    10018    115 | 53.730 % |
45.69/45.89	c |     17106 |   36061   206223   538222 |   266212    15755    123 | 53.793 % |
66.76/66.96	c |     25757 |   22364   112070   297240 |   292834    17450     98 | 60.873 % |
74.86/75.03	c ===============================================================================
74.86/75.03	c restarts              : 13
74.86/75.03	c conflicts             : 29093          (389 /sec)
74.86/75.03	c decisions             : 69131          (0.85 % random) (925 /sec)
74.86/75.03	c propagations          : 56605640       (757219 /sec)
74.86/75.03	c conflict literals     : 2597016        (40.84 % deleted)
74.86/75.03	c Memory used           : 82.10 MB
74.86/75.03	c CPU time              : 74.7546 s
74.86/75.03	c 
74.86/75.03	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node67/watcher-421993-1177542051 -o ROOT/results/node67/solver-421993-1177542051 -C 10000 -W 15000 -M 1800 --output-limit 1,15 /tmp/evaluation/421993-1177542051/minisat_noassertions /tmp/evaluation/421993-1177542051/instance-421993-1177542051.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 15000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 27172
/proc/meminfo: memFree=1810552/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=2328 CPUtime=0
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 470 0 0 0 0 0 0 0 18 0 1 0 230194798 2383872 456 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134549230 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 582 457 50 130 0 449 0

[startup+0.0710629 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 27172
/proc/meminfo: memFree=1810552/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=8456 CPUtime=0.06
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 1886 0 0 0 6 0 0 0 18 0 1 0 230194798 8658944 1872 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 2114 1872 50 130 0 1981 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 8456

[startup+0.101067 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 27172
/proc/meminfo: memFree=1810552/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=13036 CPUtime=0.09
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 2923 0 0 0 8 1 0 0 18 0 1 0 230194798 13348864 2909 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134524854 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 3259 2912 50 130 0 3126 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13036

[startup+0.301104 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 27172
/proc/meminfo: memFree=1810552/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=37860 CPUtime=0.29
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 8297 0 0 0 25 4 0 0 19 0 1 0 230194798 38768640 8283 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 9465 8283 50 130 0 9332 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 37860

[startup+0.701176 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 27172
/proc/meminfo: memFree=1810552/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=56476 CPUtime=0.69
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 12819 0 0 0 62 7 0 0 22 0 1 0 230194798 57831424 12805 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 14119 12805 50 130 0 13986 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 56476

[startup+1.50132 s]
/proc/loadavg: 0.00 0.00 0.00 2/65 27173
/proc/meminfo: memFree=1743984/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=72752 CPUtime=1.49
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 17315 0 0 0 139 10 0 0 25 0 1 0 230194798 74498048 17301 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134533236 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 18188 17301 62 130 0 18055 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 72752

[startup+3.10161 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 27173
/proc/meminfo: memFree=1733488/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=93224 CPUtime=3.09
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 21922 0 0 0 298 11 0 0 25 0 1 0 230194798 95461376 21908 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 23306 21908 62 130 0 23173 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 93224

[startup+6.30119 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 27173
/proc/meminfo: memFree=1730288/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=6.28
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23357 0 0 0 616 12 0 0 25 0 1 0 230194798 86085632 20039 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134548416 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20039 66 130 0 20884 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 84068

[startup+12.7014 s]
/proc/loadavg: 0.22 0.05 0.02 2/67 27175
/proc/meminfo: memFree=1729760/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=12.67
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 1254 13 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547037 0 0 4096 3 0 0 0 17 0 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 84068

[startup+25.5017 s]
/proc/loadavg: 0.34 0.08 0.02 2/71 27255
/proc/meminfo: memFree=1729136/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=25.44
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 2530 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134548022 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 25.44
Current children cumulated vsize (KiB) 84068

[startup+51.1013 s]
/proc/loadavg: 0.56 0.15 0.05 2/71 27341
/proc/meminfo: memFree=1729080/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=50.99
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 5085 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134548230 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 50.99
Current children cumulated vsize (KiB) 84068

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

[startup+63.9016 s]
/proc/loadavg: 0.66 0.19 0.06 2/71 27351
/proc/meminfo: memFree=1729144/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=63.78
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 6364 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134548022 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 63.78
Current children cumulated vsize (KiB) 84068

[startup+70.3018 s]
/proc/loadavg: 0.69 0.21 0.07 2/65 27371
/proc/meminfo: memFree=1730152/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=70.17
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 7003 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 70.17
Current children cumulated vsize (KiB) 84068

[startup+73.5014 s]
/proc/loadavg: 0.71 0.22 0.07 2/65 27371
/proc/meminfo: memFree=1730160/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=73.36
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 7322 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 73.36
Current children cumulated vsize (KiB) 84068

[startup+74.3015 s]
/proc/loadavg: 0.71 0.22 0.07 2/65 27371
/proc/meminfo: memFree=1730224/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=74.16
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 7402 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547037 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 74.16
Current children cumulated vsize (KiB) 84068

[startup+74.7026 s]
/proc/loadavg: 0.71 0.22 0.07 2/65 27371
/proc/meminfo: memFree=1730224/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=74.57
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 7443 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546864 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 74.57
Current children cumulated vsize (KiB) 84068

[startup+74.9016 s]
/proc/loadavg: 0.71 0.22 0.07 2/65 27371
/proc/meminfo: memFree=1730224/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=74.76
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 7462 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546586 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 74.76
Current children cumulated vsize (KiB) 84068

[startup+75.0017 s]
/proc/loadavg: 0.71 0.22 0.07 2/65 27371
/proc/meminfo: memFree=1730224/2055920 swapFree=4182956/4192956
[pid=27172] ppid=27170 vsize=84068 CPUtime=74.86
/proc/27172/stat : 27172 (minisat_noasser) R 27170 27172 27116 0 -1 4194304 23361 0 0 0 7472 14 0 0 25 0 1 0 230194798 86085632 20043 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/27172/statm: 21017 20043 67 130 0 20884 0
Current children cumulated CPU time (s) 74.86
Current children cumulated vsize (KiB) 84068

Child status: 20
Real time (s): 75.0453
CPU time (s): 74.9146
CPU user time (s): 74.7546
CPU system time (s): 0.159975
CPU usage (%): 99.8259
Max. virtual memory (cumulated for all children) (KiB): 99176

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 74.7546
system time used= 0.159975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 23367
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= 7
involuntary context switches= 336

runsolver used 0.065989 second user time and 0.201969 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Wed Apr 25 23:00:52 UTC 2007

IDJOB= 421993
IDBENCH= 20345
IDSOLVER= 189
FILE ID= node67/421993-1177542051

PBS_JOBID= 4695826

Free space on /tmp= 66440 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/total-10-11-u.cnf
COMMAND LINE= /tmp/evaluation/421993-1177542051/minisat_noassertions /tmp/evaluation/421993-1177542051/instance-421993-1177542051.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-421993-1177542051 -o ROOT/results/node67/solver-421993-1177542051 -C 10000 -W 15000 -M 1800 --output-limit 1,15  /tmp/evaluation/421993-1177542051/minisat_noassertions /tmp/evaluation/421993-1177542051/instance-421993-1177542051.cnf

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  72bf29e65f8337564b4a44baea32f1cb

RANDOM SEED= 592322242

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.263
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		: 3000.263
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:       1811088 kB
Buffers:         22668 kB
Cached:         151100 kB
SwapCached:       3916 kB
Active:          68184 kB
Inactive:       115052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1811088 kB
SwapTotal:     4192956 kB
SwapFree:      4182956 kB
Dirty:           16428 kB
Writeback:           0 kB
Mapped:          15276 kB
Slab:            47580 kB
Committed_AS:  1199576 kB
PageTables:       1452 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= 66440 MiB

End job on node67 on Wed Apr 25 23:02:08 UTC 2007