Trace number 1715671

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 18.7202 18.7266

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-11-u.cnf
MD5SUM770fa9cd880a43d98e936f33f4e86d7a
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.1094
Satisfiable
(Un)Satisfiability was proved
Number of variables156980
Number of clauses696581
Sum of the clauses size1582352
Maximum clause length10
Minimum clause length1
Number of clauses of size 113310
Number of clauses of size 2570471
Number of clauses of size 382900
Number of clauses of size 43320
Number of clauses of size 513280
Number of clauses of size over 513300

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.69/0.75	c |  Number of variables:        156980                                         |
0.69/0.75	c |  Number of clauses:          683271                                         |
0.69/0.75	c |  Parse time:                   0.65 s                                       |
2.49/2.60	c |  Simplification time:          1.83 s                                       |
2.49/2.60	c |                                                                             |
2.49/2.60	c ============================[ Search Statistics ]==============================
2.49/2.60	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
2.49/2.60	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
2.49/2.60	c ===============================================================================
2.69/2.78	c |       100 |   35151   266050   692271 |    97551       86     36 | 49.308 % |
2.99/3.02	c |       250 |   29182   266050   692271 |   107306      230     41 | 53.111 % |
3.20/3.27	c |       475 |   26876   266050   692271 |   118037      449     37 | 54.580 % |
3.69/3.71	c |       812 |   26646   134039   362902 |   129841      766     38 | 54.726 % |
4.30/4.40	c |      1318 |   24914   123081   336530 |   142825     1267     41 | 55.829 % |
5.29/5.33	c |      2077 |   23840   116656   320675 |   157107     2000     41 | 56.514 % |
6.39/6.48	c |      3216 |   23833   116597   320536 |   172818     3133     36 | 56.518 % |
8.59/8.65	c |      4924 |   23792   116301   319752 |   190100     4835     36 | 56.544 % |
11.68/11.74	c |      7486 |   23751   116012   319001 |   209110     7391     37 | 56.570 % |
15.88/15.96	c |     11330 |   23731   115869   318624 |   230021    11227     35 | 56.583 % |
18.69/18.71	c ===============================================================================
18.69/18.71	c restarts              : 61
18.69/18.71	c conflicts             : 14208          (765 /sec)
18.69/18.71	c decisions             : 24910          (1341 /sec)
18.69/18.71	c propagations          : 35468412       (1908939 /sec)
18.69/18.71	c conflict literals     : 454187         (50.14 % deleted)
18.69/18.71	c Memory used           : 59.52 MB
18.69/18.71	c CPU time              : 18.5802 s
18.69/18.71	c 
18.69/18.71	s UNSATISFIABLE

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-1715671-1240605786/watcher-1715671-1240605786 -o /tmp/evaluation-result-1715671-1240605786/solver-1715671-1240605786 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1715671-1240605786.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 0.71 0.21 0.07 3/65 15206
/proc/meminfo: memFree=1841400/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=7960 CPUtime=0
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 501 0 0 0 0 0 0 0 20 0 1 0 88609042 8151040 486 1992294400 4194304 5092341 548682068848 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 1990 486 63 219 0 1768 0

[startup+0.0394531 s]
/proc/loadavg: 0.71 0.21 0.07 3/65 15206
/proc/meminfo: memFree=1841400/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=11680 CPUtime=0.03
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 1523 0 0 0 3 0 0 0 20 0 1 0 88609042 11960320 1507 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 2920 1507 63 219 0 2698 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 11680

[startup+0.101463 s]
/proc/loadavg: 0.71 0.21 0.07 3/65 15206
/proc/meminfo: memFree=1841400/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=22156 CPUtime=0.09
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 3859 0 0 0 8 1 0 0 20 0 1 0 88609042 22687744 3702 1992294400 4194304 5092341 548682068848 18446744073709551615 4531978 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 5539 3702 63 219 0 5317 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 22156

[startup+0.301501 s]
/proc/loadavg: 0.71 0.21 0.07 3/65 15206
/proc/meminfo: memFree=1841400/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=41104 CPUtime=0.29
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 9470 0 0 0 24 5 0 0 22 0 1 0 88609042 42090496 8883 1992294400 4194304 5092341 548682068848 18446744073709551615 4270245 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 10276 8883 63 219 0 10054 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 41104

[startup+0.701579 s]
/proc/loadavg: 0.71 0.21 0.07 3/65 15206
/proc/meminfo: memFree=1841400/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=65944 CPUtime=0.69
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 15825 0 0 0 60 9 0 0 25 0 1 0 88609042 67526656 14478 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 16486 14478 63 219 0 16264 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 65944

[startup+1.50174 s]
/proc/loadavg: 0.71 0.21 0.07 2/66 15207
/proc/meminfo: memFree=1780528/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=77464 CPUtime=1.49
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 17635 0 0 0 139 10 0 0 25 0 1 0 88609042 79323136 16288 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 19366 16288 87 219 0 19144 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 77464

[startup+3.10105 s]
/proc/loadavg: 0.71 0.21 0.07 2/66 15207
/proc/meminfo: memFree=1774064/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=58344 CPUtime=3.09
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 19385 0 0 0 297 12 0 0 25 0 1 0 88609042 59744256 12500 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 14586 12500 102 219 0 14364 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 58344

[startup+6.30167 s]
/proc/loadavg: 0.89 0.26 0.09 2/66 15207
/proc/meminfo: memFree=1790640/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=58344 CPUtime=6.29
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 19485 0 0 0 617 12 0 0 25 0 1 0 88609042 59744256 12600 1992294400 4194304 5092341 548682068848 18446744073709551615 4241280 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 14586 12600 103 219 0 14364 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 58344

[startup+12.7019 s]
/proc/loadavg: 0.98 0.28 0.10 2/66 15207
/proc/meminfo: memFree=1790064/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=58344 CPUtime=12.68
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 19687 0 0 0 1256 12 0 0 25 0 1 0 88609042 59744256 12802 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 14586 12802 103 219 0 14364 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 58344

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

[startup+15.9015 s]
/proc/loadavg: 0.98 0.30 0.10 2/66 15207
/proc/meminfo: memFree=1789744/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=60940 CPUtime=15.88
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 19789 0 0 0 1576 12 0 0 25 0 1 0 88609042 62402560 12904 1992294400 4194304 5092341 548682068848 18446744073709551615 4251268 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 15235 12904 103 219 0 15013 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 60940

[startup+17.5019 s]
/proc/loadavg: 0.98 0.30 0.10 2/66 15207
/proc/meminfo: memFree=1789552/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=60940 CPUtime=17.49
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 19833 0 0 0 1736 13 0 0 25 0 1 0 88609042 62402560 12948 1992294400 4194304 5092341 548682068848 18446744073709551615 4244035 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 15235 12948 103 219 0 15013 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 60940

[startup+18.302 s]
/proc/loadavg: 0.98 0.30 0.10 2/66 15207
/proc/meminfo: memFree=1789552/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=60940 CPUtime=18.29
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 19849 0 0 0 1816 13 0 0 25 0 1 0 88609042 62402560 12964 1992294400 4194304 5092341 548682068848 18446744073709551615 4240672 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 15235 12964 103 219 0 15013 0
Current children cumulated CPU time (s) 18.29
Current children cumulated vsize (KiB) 60940

[startup+18.7051 s]
/proc/loadavg: 0.99 0.31 0.11 2/66 15207
/proc/meminfo: memFree=1789488/2055920 swapFree=4181392/4192956
[pid=15206] ppid=15204 vsize=60940 CPUtime=18.69
/proc/15206/stat : 15206 (minisat) R 15204 15206 15142 0 -1 4194304 19856 0 0 0 1856 13 0 0 25 0 1 0 88609042 62402560 12971 1992294400 4194304 5092341 548682068848 18446744073709551615 4246796 0 0 4096 3 0 0 0 17 1 0 0
/proc/15206/statm: 15235 12971 103 219 0 15013 0
Current children cumulated CPU time (s) 18.69
Current children cumulated vsize (KiB) 60940

Child status: 20
Real time (s): 18.7266
CPU time (s): 18.7202
CPU user time (s): 18.5802
CPU system time (s): 0.139978
CPU usage (%): 99.9657
Max. virtual memory (cumulated for all children) (KiB): 79288

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.5802
system time used= 0.139978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19866
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= 22

runsolver used 0.026995 second user time and 0.051992 second system time

The end

Launcher Data 

Begin job on node77 at 2009-04-24 22:43:07
IDJOB=1715671
IDBENCH=20343
IDSOLVER=546
FILE ID=node77/1715671-1240605786
PBS_JOBID= 9186246
Free space on /tmp= 66200 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/industrial/anbulagan/medium-unsat/total-5-11-u.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1715671-1240605786/watcher-1715671-1240605786 -o /tmp/evaluation-result-1715671-1240605786/solver-1715671-1240605786 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1715671-1240605786.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 770fa9cd880a43d98e936f33f4e86d7a
RANDOM SEED=585364871

node77.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		: 3000.270
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		: 3000.270
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1841816 kB
Buffers:         39600 kB
Cached:         105284 kB
SwapCached:       6144 kB
Active:          84000 kB
Inactive:        69440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1841816 kB
SwapTotal:     4192956 kB
SwapFree:      4181392 kB
Dirty:           12988 kB
Writeback:           0 kB
Mapped:          13360 kB
Slab:            46676 kB
Committed_AS:   355640 kB
PageTables:       1372 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= 66200 MiB
End job on node77 at 2009-04-24 22:43:26