Trace number 1772592

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 50.2934 50.3064

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-13-u.cnf
MD5SUM127968d7d14f3ab7655995f561e62ed8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark37.9452
Satisfiable
(Un)Satisfiability was proved
Number of variables178708
Number of clauses806681
Sum of the clauses size1842626
Maximum clause length10
Minimum clause length1
Number of clauses of size 115072
Number of clauses of size 2648853
Number of clauses of size 3108896
Number of clauses of size 43760
Number of clauses of size 515040
Number of clauses of size over 515060

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 |                                                                             |
0.79/0.88	c |  Number of variables:        178708                                         |
0.79/0.88	c |  Number of clauses:          791609                                         |
0.79/0.88	c |  Parse time:                   0.79 s                                       |
2.99/3.06	c |  Simplification time:          2.16 s                                       |
2.99/3.06	c |                                                                             |
2.99/3.06	c ============================[ Search Statistics ]==============================
2.99/3.06	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
2.99/3.06	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
2.99/3.06	c ===============================================================================
3.30/3.37	c |       100 |   46656   312668   815261 |   114644       84     40 | 45.799 % |
3.69/3.74	c |       250 |   45898   312668   815261 |   126109      227     45 | 46.223 % |
4.09/4.12	c |       475 |   42519   248920   661942 |   138720      435     53 | 48.114 % |
4.69/4.73	c |       812 |   39083   220432   589185 |   152592      751     66 | 50.037 % |
5.29/5.33	c |      1318 |   33973   188991   508367 |   167851     1210     70 | 52.896 % |
6.39/6.47	c |      2077 |   29512   153483   418931 |   184636     1908     69 | 55.393 % |
7.59/7.66	c |      3216 |   25247   123188   338501 |   203100     3025     59 | 57.779 % |
9.09/9.20	c |      4924 |   25175   122722   337258 |   223410     4718     46 | 57.819 % |
11.39/11.47	c |      7486 |   25157   122594   336934 |   245751     7272     37 | 57.830 % |
15.19/15.20	c |     11330 |   25096   122189   335861 |   270326    11102     37 | 57.864 % |
21.89/22.00	c |     17096 |   24644   117432   323107 |   297359    16842     38 | 58.117 % |
30.08/30.12	c |     25745 |   23863   112617   310744 |   327095    25450     37 | 58.554 % |
42.98/43.06	c |     38719 |   21048    96266   266887 |   359804    38353     35 | 60.129 % |
50.17/50.29	c ===============================================================================
50.17/50.29	c restarts              : 130
50.17/50.29	c conflicts             : 45268          (903 /sec)
50.17/50.29	c decisions             : 63794          (1272 /sec)
50.17/50.29	c propagations          : 90248636       (1799417 /sec)
50.17/50.29	c conflict literals     : 1490000        (56.22 % deleted)
50.17/50.29	c Memory used           : 69.82 MB
50.17/50.29	c CPU time              : 50.1544 s
50.17/50.29	c 
50.17/50.29	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-1772592-1241174910/watcher-1772592-1241174910 -o /tmp/evaluation-result-1772592-1241174910/solver-1772592-1241174910 -C 10000 -W 6000 -M 1800 HOME/minisat HOME/instance-1772592-1241174910.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): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.00 0.00 0.00 3/65 27432
/proc/meminfo: memFree=1218256/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=7960 CPUtime=0
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 499 0 0 0 0 0 0 0 19 0 1 0 145524880 8151040 483 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 1990 484 63 219 0 1768 0

[startup+0.026905 s]
/proc/loadavg: 0.00 0.00 0.00 3/65 27432
/proc/meminfo: memFree=1218256/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=11528 CPUtime=0.01
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 1345 0 0 0 1 0 0 0 19 0 1 0 145524880 11804672 1329 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 2882 1329 63 219 0 2660 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 11528

[startup+0.101911 s]
/proc/loadavg: 0.00 0.00 0.00 3/65 27432
/proc/meminfo: memFree=1218256/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=20992 CPUtime=0.09
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 3803 0 0 0 8 1 0 0 19 0 1 0 145524880 21495808 3645 1992294400 4194304 5092341 548682068848 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 5248 3647 63 219 0 5026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20992

[startup+0.301929 s]
/proc/loadavg: 0.00 0.00 0.00 3/65 27432
/proc/meminfo: memFree=1218256/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=44308 CPUtime=0.29
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 9890 0 0 0 25 4 0 0 21 0 1 0 145524880 45371392 9302 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 11077 9302 63 219 0 10855 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 44308

[startup+0.701966 s]
/proc/loadavg: 0.00 0.00 0.00 3/65 27432
/proc/meminfo: memFree=1218256/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=67036 CPUtime=0.69
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 16261 0 0 0 62 7 0 0 25 0 1 0 145524880 68644864 14913 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 16759 14913 63 219 0 16537 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 67036

[startup+1.50104 s]
/proc/loadavg: 0.00 0.00 0.00 2/66 27433
/proc/meminfo: memFree=1147208/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=82628 CPUtime=1.49
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 20245 0 0 0 140 9 0 0 25 0 1 0 145524880 84611072 18213 1992294400 4194304 5092341 548682068848 18446744073709551615 4270245 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 20657 18214 87 219 0 20435 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 82628

[startup+3.10219 s]
/proc/loadavg: 0.00 0.00 0.00 2/66 27433
/proc/meminfo: memFree=1140040/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=65004 CPUtime=3.09
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 23116 0 0 0 298 11 0 0 25 0 1 0 145524880 66564096 14458 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 16251 14458 91 219 0 16029 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 65004

[startup+6.30149 s]
/proc/loadavg: 0.08 0.02 0.01 2/66 27433
/proc/meminfo: memFree=1159880/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=65004 CPUtime=6.29
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 23277 0 0 0 618 11 0 0 25 0 1 0 145524880 66564096 14619 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 16251 14619 101 219 0 16029 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 65004

[startup+12.7011 s]
/proc/loadavg: 0.15 0.03 0.01 2/66 27433
/proc/meminfo: memFree=1159112/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=67600 CPUtime=12.69
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 23483 0 0 0 1258 11 0 0 25 0 1 0 145524880 69222400 14825 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 16900 14825 102 219 0 16678 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 67600

[startup+25.5013 s]
/proc/loadavg: 0.34 0.08 0.02 2/66 27433
/proc/meminfo: memFree=1157256/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=67600 CPUtime=25.48
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 23949 0 0 0 2537 11 0 0 25 0 1 0 145524880 69222400 15291 1992294400 4194304 5092341 548682068848 18446744073709551615 4241376 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 16900 15291 102 219 0 16678 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 67600

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

[startup+38.3015 s]
/proc/loadavg: 0.49 0.12 0.04 2/66 27433
/proc/meminfo: memFree=1155528/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=71492 CPUtime=38.28
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 24406 0 0 0 3816 12 0 0 25 0 1 0 145524880 73207808 15748 1992294400 4194304 5092341 548682068848 18446744073709551615 4244040 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 17873 15748 102 219 0 17651 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 71492

[startup+44.7011 s]
/proc/loadavg: 0.53 0.14 0.04 2/66 27433
/proc/meminfo: memFree=1154696/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=71492 CPUtime=44.68
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 24595 0 0 0 4456 12 0 0 25 0 1 0 145524880 73207808 15937 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 17873 15937 102 219 0 17651 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 71492

[startup+47.9014 s]
/proc/loadavg: 0.53 0.14 0.04 2/66 27433
/proc/meminfo: memFree=1154248/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=71492 CPUtime=47.88
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 24711 0 0 0 4776 12 0 0 25 0 1 0 145524880 73207808 16053 1992294400 4194304 5092341 548682068848 18446744073709551615 4244035 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 17873 16053 102 219 0 17651 0
Current children cumulated CPU time (s) 47.88
Current children cumulated vsize (KiB) 71492

[startup+49.5055 s]
/proc/loadavg: 0.56 0.15 0.05 2/66 27433
/proc/meminfo: memFree=1154120/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=71492 CPUtime=49.48
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 24732 0 0 0 4936 12 0 0 25 0 1 0 145524880 73207808 16074 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 17873 16074 102 219 0 17651 0
Current children cumulated CPU time (s) 49.48
Current children cumulated vsize (KiB) 71492

[startup+49.9015 s]
/proc/loadavg: 0.56 0.15 0.05 2/66 27433
/proc/meminfo: memFree=1154120/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=71492 CPUtime=49.88
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194304 24737 0 0 0 4976 12 0 0 25 0 1 0 145524880 73207808 16079 1992294400 4194304 5092341 548682068848 18446744073709551615 4247150 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 17873 16079 102 219 0 17651 0
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (KiB) 71492

[startup+50.3016 s]
/proc/loadavg: 0.56 0.15 0.05 2/66 27433
/proc/meminfo: memFree=1154120/2055920 swapFree=4181396/4192956
[pid=27432] ppid=27430 vsize=0 CPUtime=50.28
/proc/27432/stat : 27432 (minisat) R 27430 27432 27395 0 -1 4194308 24751 0 0 0 5015 13 0 0 25 0 1 0 145524880 0 0 1992294400 0 0 0 0 0 0 0 4096 3 0 0 0 17 1 0 0
/proc/27432/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 50.28
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 50.3064
CPU time (s): 50.2934
CPU user time (s): 50.1544
CPU system time (s): 0.138978
CPU usage (%): 99.9741
Max. virtual memory (cumulated for all children) (KiB): 87316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 50.1544
system time used= 0.138978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24751
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= 116

runsolver used 0.065989 second user time and 0.122981 second system time

The end

Launcher Data 

Begin job on node8 at 2009-05-01 12:48:31
IDJOB=1772592
IDBENCH=20347
IDSOLVER=608
FILE ID=node8/1772592-1241174910
PBS_JOBID= 9224550
Free space on /tmp= 65928 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/industrial/anbulagan/medium-unsat/total-5-13-u.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1772592-1241174910/watcher-1772592-1241174910 -o /tmp/evaluation-result-1772592-1241174910/solver-1772592-1241174910 -C 10000 -W 6000 -M 1800  HOME/minisat HOME/instance-1772592-1241174910.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 127968d7d14f3ab7655995f561e62ed8
RANDOM SEED=594093069

node8.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		: 3000.238
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		: 3000.238
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:       1218680 kB
Buffers:         58124 kB
Cached:         697840 kB
SwapCached:       5024 kB
Active:         229352 kB
Inactive:       535420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1218680 kB
SwapTotal:     4192956 kB
SwapFree:      4181396 kB
Dirty:           15240 kB
Writeback:           0 kB
Mapped:          15040 kB
Slab:            58260 kB
Committed_AS:   778244 kB
PageTables:       1372 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65928 MiB
End job on node8 at 2009-05-01 12:49:22