Trace number 421384

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 47.0099 47.0261

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1239472001-19-UNSAT.cnf
MD5SUM914d3e80d7a891b747d01777ed9ce8d7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.2419
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
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:         0.01         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 |    1083     3709    11128 |     1236        0    nan |  0.000 % |
0.00/0.01	c |       100 |    1083     3709    11128 |     1359      100     17 |  0.077 % |
0.00/0.02	c |       251 |    1083     3709    11128 |     1495      251     17 |  0.077 % |
0.00/0.04	c |       476 |    1083     3709    11128 |     1645      476     17 |  0.077 % |
0.05/0.06	c |       813 |    1083     3709    11128 |     1810      813     18 |  0.078 % |
0.05/0.09	c |      1319 |    1083     3709    11128 |     1991     1319     18 |  0.077 % |
0.10/0.15	c |      2078 |    1083     3709    11128 |     2190     2078     19 |  0.078 % |
0.19/0.24	c |      3217 |    1083     3709    11128 |     2409     2104     19 |  0.077 % |
0.29/0.38	c |      4925 |    1083     3709    11128 |     2650     1294     17 |  0.077 % |
0.49/0.59	c |      7488 |    1083     3709    11128 |     2915     2483     18 |  0.077 % |
0.89/0.93	c |     11332 |    1083     3709    11128 |     3206     1804     16 |  0.077 % |
1.39/1.44	c |     17098 |    1083     3709    11128 |     3527     2619     16 |  0.077 % |
2.20/2.22	c |     25748 |    1083     3709    11128 |     3880     2224     18 |  0.077 % |
3.39/3.45	c |     38722 |    1083     3709    11128 |     4268     3310     17 |  0.077 % |
5.29/5.30	c |     58184 |    1083     3709    11128 |     4694     3166     19 |  0.077 % |
8.09/8.17	c |     87377 |    1083     3709    11128 |     5164     3598     18 |  0.077 % |
12.49/12.57	c |    131166 |    1082     3691    11065 |     5680     5193     16 |  0.155 % |
19.49/19.59	c |    196850 |    1081     3685    11048 |     6249     2907     17 |  0.232 % |
30.48/30.50	c |    295376 |    1081     3685    11048 |     6873     6269     20 |  0.232 % |
46.98/47.02	c ===============================================================================
46.98/47.02	c restarts              : 19
46.98/47.02	c conflicts             : 440963         (9381 /sec)
46.98/47.02	c decisions             : 539833         (1.74 % random) (11484 /sec)
46.98/47.02	c propagations          : 65232389       (1387750 /sec)
46.98/47.02	c conflict literals     : 8417256        (38.79 % deleted)
46.98/47.02	c Memory used           : 3.60 MB
46.98/47.02	c CPU time              : 47.0059 s
46.98/47.02	c 
46.98/47.02	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/node27/watcher-421384-1177503260 -o ROOT/results/node27/solver-421384-1177503260 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421384-1177503260/minisat_noassertions /tmp/evaluation/421384-1177503260/instance-421384-1177503260.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): 2400 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: 1.00 1.00 0.97 3/65 13260
/proc/meminfo: memFree=1734248/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=1988 CPUtime=0
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 176 0 0 0 0 0 0 0 18 0 1 0 163021877 2035712 162 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134690586 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 497 163 50 130 0 364 0

[startup+0.0584201 s]
/proc/loadavg: 1.00 1.00 0.97 3/65 13260
/proc/meminfo: memFree=1734248/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=2220 CPUtime=0.05
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 236 0 0 0 5 0 0 0 18 0 1 0 163021877 2273280 222 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552475 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 555 222 66 130 0 422 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2220

[startup+0.101425 s]
/proc/loadavg: 1.00 1.00 0.97 3/65 13260
/proc/meminfo: memFree=1734248/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=2220 CPUtime=0.1
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 236 0 0 0 10 0 0 0 18 0 1 0 163021877 2273280 222 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547273 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 555 222 66 130 0 422 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2220

[startup+0.301445 s]
/proc/loadavg: 1.00 1.00 0.97 3/65 13260
/proc/meminfo: memFree=1734248/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=2352 CPUtime=0.29
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 267 0 0 0 29 0 0 0 19 0 1 0 163021877 2408448 253 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546953 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 588 253 66 130 0 455 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2352

[startup+0.701484 s]
/proc/loadavg: 1.00 1.00 0.97 3/65 13260
/proc/meminfo: memFree=1734248/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=2352 CPUtime=0.69
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 289 0 0 0 69 0 0 0 22 0 1 0 163021877 2408448 275 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546847 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 588 275 66 130 0 455 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2352

[startup+1.50157 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1733472/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=2484 CPUtime=1.49
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 304 0 0 0 149 0 0 0 25 0 1 0 163021877 2543616 290 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 621 290 66 130 0 488 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2484

[startup+3.10173 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1733152/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=2616 CPUtime=3.09
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 350 0 0 0 309 0 0 0 25 0 1 0 163021877 2678784 336 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552654 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 654 336 66 130 0 521 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2616

[startup+6.30105 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1732896/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=2880 CPUtime=6.29
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 400 0 0 0 629 0 0 0 25 0 1 0 163021877 2949120 386 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547187 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 720 386 66 130 0 587 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2880

[startup+12.7017 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1732576/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3156 CPUtime=12.69
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 459 0 0 0 1269 0 0 0 25 0 1 0 163021877 3231744 445 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 789 445 66 130 0 656 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3156

[startup+25.502 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1732192/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3420 CPUtime=25.49
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 548 0 0 0 2549 0 0 0 25 0 1 0 163021877 3502080 534 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546937 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 855 534 66 130 0 722 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3420

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

[startup+38.3013 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1731936/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3684 CPUtime=38.28
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 594 0 0 0 3828 0 0 0 25 0 1 0 163021877 3772416 580 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552677 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 921 580 66 130 0 788 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 3684

[startup+41.5016 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1731936/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3684 CPUtime=41.48
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 604 0 0 0 4148 0 0 0 25 0 1 0 163021877 3772416 590 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552241 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 921 590 66 130 0 788 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 3684

[startup+44.7019 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1731872/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3684 CPUtime=44.68
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 605 0 0 0 4468 0 0 0 25 0 1 0 163021877 3772416 591 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546614 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 921 591 66 130 0 788 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 3684

[startup+46.3011 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1731872/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3684 CPUtime=46.28
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 609 0 0 0 4628 0 0 0 25 0 1 0 163021877 3772416 595 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547326 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 921 595 66 130 0 788 0
Current children cumulated CPU time (s) 46.28
Current children cumulated vsize (KiB) 3684

[startup+46.7011 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1731872/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3684 CPUtime=46.68
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 611 0 0 0 4668 0 0 0 25 0 1 0 163021877 3772416 597 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547158 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 921 597 66 130 0 788 0
Current children cumulated CPU time (s) 46.68
Current children cumulated vsize (KiB) 3684

[startup+46.9012 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1731872/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3684 CPUtime=46.88
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 611 0 0 0 4688 0 0 0 25 0 1 0 163021877 3772416 597 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546971 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 921 597 66 130 0 788 0
Current children cumulated CPU time (s) 46.88
Current children cumulated vsize (KiB) 3684

[startup+47.0022 s]
/proc/loadavg: 1.00 1.00 0.97 2/66 13261
/proc/meminfo: memFree=1731872/2055920 swapFree=4182888/4192956
[pid=13260] ppid=13258 vsize=3684 CPUtime=46.98
/proc/13260/stat : 13260 (minisat_noasser) R 13258 13260 11876 0 -1 4194304 611 0 0 0 4698 0 0 0 25 0 1 0 163021877 3772416 597 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547011 0 0 4096 3 0 0 0 17 1 0 0
/proc/13260/statm: 921 597 66 130 0 788 0
Current children cumulated CPU time (s) 46.98
Current children cumulated vsize (KiB) 3684

Child status: 20
Real time (s): 47.0261
CPU time (s): 47.0099
CPU user time (s): 47.0059
CPU system time (s): 0.003999
CPU usage (%): 99.9654
Max. virtual memory (cumulated for all children) (KiB): 3684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 47.0059
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 617
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= 75

runsolver used 0.039993 second user time and 0.094985 second system time

The end

Launcher Data (download as text)

Begin job on node27 on Wed Apr 25 12:14:20 UTC 2007

IDJOB= 421384
IDBENCH= 20303
IDSOLVER= 188
FILE ID= node27/421384-1177503260

PBS_JOBID= 4685841

Free space on /tmp= 66376 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1239472001-19-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/421384-1177503260/minisat_noassertions /tmp/evaluation/421384-1177503260/instance-421384-1177503260.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node27/watcher-421384-1177503260 -o ROOT/results/node27/solver-421384-1177503260 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421384-1177503260/minisat_noassertions /tmp/evaluation/421384-1177503260/instance-421384-1177503260.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  914d3e80d7a891b747d01777ed9ce8d7

RANDOM SEED= 567776008

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node27.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		: 3000.213
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	: 5931.00
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		: 3000.213
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:       1734720 kB
Buffers:         21476 kB
Cached:         210800 kB
SwapCached:       4364 kB
Active:         143456 kB
Inactive:       136420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1734720 kB
SwapTotal:     4192956 kB
SwapFree:      4182888 kB
Dirty:            1516 kB
Writeback:           0 kB
Mapped:          53092 kB
Slab:            27236 kB
Committed_AS:  2200540 kB
PageTables:       1500 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= 66376 MiB

End job on node27 on Wed Apr 25 12:15:07 UTC 2007