Trace number 1723755

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 0.883865 0.884938

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.883865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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 |                                                                             |
0.01/0.08	c |  Number of variables:         23891                                         |
0.01/0.08	c |  Number of clauses:           69894                                         |
0.01/0.08	c |  Parse time:                   0.07 s                                       |
0.39/0.40	c |  Simplification time:          0.32 s                                       |
0.39/0.40	c |                                                                             |
0.39/0.40	c ============================[ Search Statistics ]==============================
0.39/0.40	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.39/0.40	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.39/0.40	c ===============================================================================
0.39/0.41	c |       100 |    5031    30607   120005 |    11222       96     10 |  0.218 % |
0.39/0.43	c |       250 |    4995    30607   120005 |    12344      244     11 |  0.368 % |
0.39/0.45	c |       475 |    4989    30607   120005 |    13579      468     12 |  0.393 % |
0.39/0.47	c |       812 |    4989    30607   120005 |    14937      805     12 |  0.393 % |
0.49/0.50	c |      1318 |    4989    29420   116080 |    16430     1244     11 |  0.393 % |
0.49/0.54	c |      2077 |    4989    29420   116080 |    18074     2003     10 |  0.393 % |
0.49/0.58	c |      3216 |    4989    29420   116080 |    19881     3142     14 |  0.393 % |
0.59/0.65	c |      4924 |    4989    29420   116080 |    21869     4850     16 |  0.393 % |
0.69/0.74	c |      7486 |    4989    29420   116080 |    24056     7412     17 |  0.393 % |
0.79/0.88	c ===============================================================================
0.79/0.88	c restarts              : 45
0.79/0.88	c conflicts             : 10237          (11796 /sec)
0.79/0.88	c decisions             : 37727          (43471 /sec)
0.79/0.88	c propagations          : 962193         (1108686 /sec)
0.79/0.88	c conflict literals     : 163191         (27.93 % deleted)
0.79/0.88	c Memory used           : 14.46 MB
0.79/0.88	c CPU time              : 0.867868 s
0.79/0.88	c 
0.79/0.88	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-1723755-1240688446/watcher-1723755-1240688446 -o /tmp/evaluation-result-1723755-1240688446/solver-1723755-1240688446 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1723755-1240688446.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: 0.91 0.97 0.99 3/64 21067
/proc/meminfo: memFree=1717168/2055920 swapFree=4180816/4192956
[pid=21067] ppid=21065 vsize=7608 CPUtime=0
/proc/21067/stat : 21067 (minisat) R 21065 21067 20435 0 -1 4194304 422 0 0 0 0 0 0 0 18 0 1 0 96872478 7790592 406 1992294400 4194304 5092341 548682068832 18446744073709551615 4244898 0 0 4096 3 0 0 0 17 1 0 0
/proc/21067/statm: 1902 407 63 219 0 1680 0

[startup+0.01895 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21067
/proc/meminfo: memFree=1717168/2055920 swapFree=4180816/4192956
[pid=21067] ppid=21065 vsize=8960 CPUtime=0.01
/proc/21067/stat : 21067 (minisat) R 21065 21067 20435 0 -1 4194304 781 0 0 0 1 0 0 0 18 0 1 0 96872478 9175040 765 1992294400 4194304 5092341 548682068832 18446744073709551615 4515543 0 0 4096 3 0 0 0 17 1 0 0
/proc/21067/statm: 2240 773 63 219 0 2018 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 8960

[startup+0.102965 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21067
/proc/meminfo: memFree=1717168/2055920 swapFree=4180816/4192956
[pid=21067] ppid=21065 vsize=13784 CPUtime=0.09
/proc/21067/stat : 21067 (minisat) R 21065 21067 20435 0 -1 4194304 2301 0 0 0 9 0 0 0 18 0 1 0 96872478 14114816 2183 1992294400 4194304 5092341 548682068832 18446744073709551615 4515103 0 0 4096 3 0 0 0 17 1 0 0
/proc/21067/statm: 3446 2183 88 219 0 3224 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13784

[startup+0.301976 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21067
/proc/meminfo: memFree=1717168/2055920 swapFree=4180816/4192956
[pid=21067] ppid=21065 vsize=15656 CPUtime=0.29
/proc/21067/stat : 21067 (minisat) R 21065 21067 20435 0 -1 4194304 3021 0 0 0 28 1 0 0 19 0 1 0 96872478 16031744 2903 1992294400 4194304 5092341 548682068832 18446744073709551615 4247667 0 0 4096 3 0 0 0 17 1 0 0
/proc/21067/statm: 3914 2903 88 219 0 3692 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15656

[startup+0.702017 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21067
/proc/meminfo: memFree=1717168/2055920 swapFree=4180816/4192956
[pid=21067] ppid=21065 vsize=14808 CPUtime=0.69
/proc/21067/stat : 21067 (minisat) R 21065 21067 20435 0 -1 4194304 3363 0 0 0 68 1 0 0 22 0 1 0 96872478 15163392 2328 1992294400 4194304 5092341 548682068832 18446744073709551615 4248469 0 0 4096 3 0 0 0 17 1 0 0
/proc/21067/statm: 3702 2328 103 219 0 3480 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14808

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

[startup+0.801027 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21067
/proc/meminfo: memFree=1717168/2055920 swapFree=4180816/4192956
[pid=21067] ppid=21065 vsize=14808 CPUtime=0.79
/proc/21067/stat : 21067 (minisat) R 21065 21067 20435 0 -1 4194304 3408 0 0 0 78 1 0 0 23 0 1 0 96872478 15163392 2373 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/21067/statm: 3702 2373 103 219 0 3480 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 14808

Child status: 20
Real time (s): 0.884938
CPU time (s): 0.883865
CPU user time (s): 0.867868
CPU system time (s): 0.015997
CPU usage (%): 99.8788
Max. virtual memory (cumulated for all children) (KiB): 20000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.867868
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3438
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= 1

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node45 at 2009-04-25 21:40:46
IDJOB=1723755
IDBENCH=71734
IDSOLVER=546
FILE ID=node45/1723755-1240688446
PBS_JOBID= 9186643
Free space on /tmp= 66280 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723755-1240688446/watcher-1723755-1240688446 -o /tmp/evaluation-result-1723755-1240688446/solver-1723755-1240688446 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1723755-1240688446.cnf

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

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=850685528

node45.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		: 3000.231
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:       1717584 kB
Buffers:         29068 kB
Cached:         247556 kB
SwapCached:       6324 kB
Active:         124952 kB
Inactive:       160516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1717584 kB
SwapTotal:     4192956 kB
SwapFree:      4180816 kB
Dirty:            2120 kB
Writeback:           0 kB
Mapped:          14068 kB
Slab:            38892 kB
Committed_AS:   378320 kB
PageTables:       1384 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= 66280 MiB
End job on node45 at 2009-04-25 21:40:47