Trace number 427037

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 32.877 32.8878

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
MD5SUM6c6574c6e53b7d1ef3d1cc6ac9e5dec3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.96448
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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:  1295                                                 |
0.00/0.00	c |  Number of clauses:    4026                                                 |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.01	c ============================[ Search Statistics ]==============================
0.00/0.01	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |    1085     3702    11081 |     1234        0    nan |  0.000 % |
0.00/0.01	c |       100 |    1085     3702    11081 |     1357      100     22 |  0.000 % |
0.01/0.02	c |       251 |    1085     3702    11081 |     1493      251     19 |  0.000 % |
0.01/0.04	c |       476 |    1085     3702    11081 |     1642      476     17 |  0.000 % |
0.01/0.06	c |       813 |    1085     3702    11081 |     1806      813     17 |  0.000 % |
0.01/0.09	c |      1320 |    1085     3702    11081 |     1987     1320     18 |  0.000 % |
0.09/0.14	c |      2079 |    1085     3702    11081 |     2186     1058     16 |  0.000 % |
0.19/0.23	c |      3219 |    1085     3702    11081 |     2404     2198     19 |  0.000 % |
0.29/0.37	c |      4928 |    1085     3702    11081 |     2645     1423     17 |  0.000 % |
0.49/0.58	c |      7491 |    1085     3702    11081 |     2909     2635     16 |  0.000 % |
0.89/0.91	c |     11337 |    1085     3702    11081 |     3200     2002     15 |  0.001 % |
1.39/1.42	c |     17103 |    1085     3702    11081 |     3520     2873     17 |  0.000 % |
2.10/2.20	c |     25752 |    1085     3702    11081 |     3872     2499     16 |  0.000 % |
3.39/3.41	c |     38726 |    1085     3702    11081 |     4260     3609     17 |  0.000 % |
5.19/5.22	c |     58187 |    1085     3702    11081 |     4686     3512     18 |  0.000 % |
8.09/8.11	c |     87379 |    1085     3702    11081 |     5154     3954     18 |  0.000 % |
12.49/12.58	c |    131169 |    1082     3691    11053 |     5670     4469     17 |  0.232 % |
19.49/19.59	c |    196853 |    1082     3691    11053 |     6237     3862     17 |  0.232 % |
30.08/30.14	c |    295379 |    1071     3624    10849 |     6860     3684     15 |  1.081 % |
32.78/32.88	c ===============================================================================
32.78/32.88	c restarts              : 19
32.78/32.88	c conflicts             : 320217         (9742 /sec)
32.78/32.88	c decisions             : 389866         (1.74 % random) (11861 /sec)
32.78/32.88	c propagations          : 47920881       (1457891 /sec)
32.78/32.88	c conflict literals     : 5747183        (39.00 % deleted)
32.78/32.88	c Memory used           : 3.47 MB
32.78/32.88	c CPU time              : 32.87 s
32.78/32.88	c 
32.78/32.88	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/node7/watcher-427037-1177831539 -o ROOT/results/node7/solver-427037-1177831539 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/427037-1177831539/minisat_noassertions /tmp/evaluation/427037-1177831539/instance-427037-1177831539.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.91 0.98 0.99 3/77 15760
/proc/meminfo: memFree=1629936/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=1992 CPUtime=0
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 179 0 0 0 0 0 0 0 18 0 1 0 259191487 2039808 165 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 498 165 50 130 0 365 0

[startup+0.019559 s]
/proc/loadavg: 0.91 0.98 0.99 3/77 15760
/proc/meminfo: memFree=1629936/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=2220 CPUtime=0.01
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 235 0 0 0 1 0 0 0 18 0 1 0 259191487 2273280 221 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134700109 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 555 221 66 130 0 422 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2220

[startup+0.101567 s]
/proc/loadavg: 0.91 0.98 0.99 3/77 15760
/proc/meminfo: memFree=1629936/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=2220 CPUtime=0.09
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 235 0 0 0 9 0 0 0 18 0 1 0 259191487 2273280 221 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547171 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 555 221 66 130 0 422 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2220

[startup+0.301589 s]
/proc/loadavg: 0.91 0.98 0.99 3/77 15760
/proc/meminfo: memFree=1629936/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=2352 CPUtime=0.29
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 265 0 0 0 29 0 0 0 19 0 1 0 259191487 2408448 251 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547004 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 588 251 66 130 0 455 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2352

[startup+0.701631 s]
/proc/loadavg: 0.91 0.98 0.99 3/77 15760
/proc/meminfo: memFree=1629936/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=2352 CPUtime=0.69
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 280 0 0 0 69 0 0 0 22 0 1 0 259191487 2408448 266 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547310 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 588 266 66 130 0 455 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2352

[startup+1.50172 s]
/proc/loadavg: 0.91 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1629096/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=2484 CPUtime=1.49
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 313 0 0 0 149 0 0 0 25 0 1 0 259191487 2543616 299 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547004 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 621 299 66 130 0 488 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2484

[startup+3.10189 s]
/proc/loadavg: 0.91 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1628840/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=2616 CPUtime=3.09
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 350 0 0 0 309 0 0 0 25 0 1 0 259191487 2678784 336 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546953 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 654 336 66 130 0 521 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2616

[startup+6.30223 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1628520/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=2880 CPUtime=6.29
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 399 0 0 0 629 0 0 0 25 0 1 0 259191487 2949120 385 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546885 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 720 385 66 130 0 587 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2880

[startup+12.7019 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1628264/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=3148 CPUtime=12.69
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 457 0 0 0 1269 0 0 0 25 0 1 0 259191487 3223552 443 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547313 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 787 443 66 130 0 654 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3148

[startup+25.5013 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1627944/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=3416 CPUtime=25.48
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 531 0 0 0 2548 0 0 0 25 0 1 0 259191487 3497984 517 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552479 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 854 517 66 130 0 721 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3416

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

[startup+28.7016 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1627880/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=3416 CPUtime=28.68
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 543 0 0 0 2868 0 0 0 25 0 1 0 259191487 3497984 529 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547326 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 854 529 66 130 0 721 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 3416

[startup+30.3018 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1627880/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=3416 CPUtime=30.28
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 549 0 0 0 3028 0 0 0 25 0 1 0 259191487 3497984 535 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547276 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 854 535 66 130 0 721 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 3416

[startup+31.906 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1627816/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=3548 CPUtime=31.89
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 558 0 0 0 3189 0 0 0 25 0 1 0 259191487 3633152 544 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 887 544 66 130 0 754 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 3548

[startup+32.303 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1627816/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=3548 CPUtime=32.28
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 559 0 0 0 3228 0 0 0 25 0 1 0 259191487 3633152 545 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546885 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 887 545 66 130 0 754 0
Current children cumulated CPU time (s) 32.28
Current children cumulated vsize (KiB) 3548

[startup+32.701 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1627816/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=3548 CPUtime=32.68
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 561 0 0 0 3268 0 0 0 25 0 1 0 259191487 3633152 547 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546825 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 887 547 66 130 0 754 0
Current children cumulated CPU time (s) 32.68
Current children cumulated vsize (KiB) 3548

[startup+32.8011 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 15761
/proc/meminfo: memFree=1627816/2055920 swapFree=4156360/4192956
[pid=15760] ppid=15758 vsize=3548 CPUtime=32.78
/proc/15760/stat : 15760 (minisat_noasser) R 15758 15760 13601 0 -1 4194304 561 0 0 0 3278 0 0 0 25 0 1 0 259191487 3633152 547 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547004 0 0 4096 3 0 0 0 17 1 0 0
/proc/15760/statm: 887 547 66 130 0 754 0
Current children cumulated CPU time (s) 32.78
Current children cumulated vsize (KiB) 3548

Child status: 20
Real time (s): 32.8878
CPU time (s): 32.877
CPU user time (s): 32.87
CPU system time (s): 0.006998
CPU usage (%): 99.9672
Max. virtual memory (cumulated for all children) (KiB): 3548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.87
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 567
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= 8
involuntary context switches= 25

runsolver used 0.029995 second user time and 0.076988 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Sun Apr 29 07:25:39 UTC 2007

IDJOB= 427037
IDBENCH= 20298
IDSOLVER= 189
FILE ID= node7/427037-1177831539

PBS_JOBID= 4718266

Free space on /tmp= 66563 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/427037-1177831539/minisat_noassertions /tmp/evaluation/427037-1177831539/instance-427037-1177831539.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-427037-1177831539 -o ROOT/results/node7/solver-427037-1177831539 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/427037-1177831539/minisat_noassertions /tmp/evaluation/427037-1177831539/instance-427037-1177831539.cnf

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  6c6574c6e53b7d1ef3d1cc6ac9e5dec3

RANDOM SEED= 381643869

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.231
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		: 3000.231
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:       1630408 kB
Buffers:         43632 kB
Cached:         306608 kB
SwapCached:      17164 kB
Active:         231476 kB
Inactive:       144580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1630408 kB
SwapTotal:     4192956 kB
SwapFree:      4156360 kB
Dirty:            1676 kB
Writeback:           0 kB
Mapped:          31388 kB
Slab:            34876 kB
Committed_AS:  8976400 kB
PageTables:       1864 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= 66563 MiB

End job on node7 on Sun Apr 29 07:26:12 UTC 2007