Trace number 1773582

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 6.32304 6.32304

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor064.cnf
MD5SUM1a151a1e93387c74239b48070e3eed97
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72043
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
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 |                                                                             |
0.00/0.04	c |  Number of variables:         14578                                         |
0.00/0.04	c |  Number of clauses:           42579                                         |
0.00/0.04	c |  Parse time:                   0.03 s                                       |
0.19/0.28	c |  Simplification time:          0.24 s                                       |
0.19/0.28	c |                                                                             |
0.19/0.28	c ============================[ Search Statistics ]==============================
0.19/0.28	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.28	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.28	c ===============================================================================
0.19/0.29	c |       100 |    1838    17454   112368 |     6399      100     21 |  0.123 % |
0.19/0.30	c |       250 |    1838    17454   112368 |     7039      250     22 |  0.123 % |
0.29/0.30	c |       475 |    1838    17454   112368 |     7743      475     20 |  0.123 % |
0.29/0.32	c |       812 |    1838    17454   112368 |     8518      812     20 |  0.123 % |
0.29/0.34	c |      1318 |    1838    17454   112368 |     9369     1318     24 |  0.123 % |
0.29/0.36	c |      2077 |    1838    17454   112368 |    10306     2077     24 |  0.123 % |
0.39/0.42	c |      3216 |    1838    17454   112368 |    11337     3216     35 |  0.123 % |
0.49/0.52	c |      4924 |    1838    17454   112368 |    12471     4924     41 |  0.123 % |
0.59/0.66	c |      7486 |    1838    17454   112368 |    13718     7486     45 |  0.123 % |
0.89/0.95	c |     11330 |    1838    17454   112368 |    15090    11330     51 |  0.123 % |
1.39/1.40	c |     17096 |    1838    17454   112368 |    16599     9230     68 |  0.123 % |
2.09/2.14	c |     25745 |    1838    17454   112368 |    18259     9555     67 |  0.123 % |
3.40/3.42	c |     38719 |    1838    17454   112368 |    20085    13230     71 |  0.123 % |
5.90/5.91	c |     58180 |    1833    17222   111650 |    22093    12335     77 |  0.158 % |
6.30/6.31	c ===============================================================================
6.30/6.31	c restarts              : 190
6.30/6.31	c conflicts             : 61320          (9769 /sec)
6.30/6.31	c decisions             : 199563         (31793 /sec)
6.30/6.31	c propagations          : 5366282        (854906 /sec)
6.30/6.31	c conflict literals     : 5113937        (26.59 % deleted)
6.30/6.31	c Memory used           : 23.88 MB
6.30/6.31	c CPU time              : 6.27705 s
6.30/6.31	c 
6.30/6.31	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-1773582-1241212402/watcher-1773582-1241212402 -o /tmp/evaluation-result-1773582-1241212402/solver-1773582-1241212402 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773582-1241212402.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): 12000 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: 1.00 1.00 1.00 3/64 9132
/proc/meminfo: memFree=876216/2055920 swapFree=4174092/4192956
[pid=9132] ppid=9130 vsize=7612 CPUtime=0
/proc/9132/stat : 9132 (minisat) R 9130 9132 9006 0 -1 4194304 354 0 0 0 0 0 0 0 18 0 1 0 149268300 7794688 338 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/9132/statm: 1903 339 63 219 0 1681 0

[startup+0.0992331 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9132
/proc/meminfo: memFree=876216/2055920 swapFree=4174092/4192956
[pid=9132] ppid=9130 vsize=12204 CPUtime=0.09
/proc/9132/stat : 9132 (minisat) R 9130 9132 9006 0 -1 4194304 1745 0 0 0 8 1 0 0 18 0 1 0 149268300 12496896 1688 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/9132/statm: 3051 1689 88 219 0 2829 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12204

[startup+0.101233 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9132
/proc/meminfo: memFree=876216/2055920 swapFree=4174092/4192956
[pid=9132] ppid=9130 vsize=12204 CPUtime=0.09
/proc/9132/stat : 9132 (minisat) R 9130 9132 9006 0 -1 4194304 1762 0 0 0 8 1 0 0 18 0 1 0 149268300 12496896 1705 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/9132/statm: 3051 1706 88 219 0 2829 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12204

[startup+0.301249 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9132
/proc/meminfo: memFree=876216/2055920 swapFree=4174092/4192956
[pid=9132] ppid=9130 vsize=12900 CPUtime=0.29
/proc/9132/stat : 9132 (minisat) R 9130 9132 9006 0 -1 4194304 2471 0 0 0 28 1 0 0 19 0 1 0 149268300 13209600 1707 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/9132/statm: 3225 1707 102 219 0 3003 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12900

[startup+0.701284 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9132
/proc/meminfo: memFree=876216/2055920 swapFree=4174092/4192956
[pid=9132] ppid=9130 vsize=12900 CPUtime=0.69
/proc/9132/stat : 9132 (minisat) R 9130 9132 9006 0 -1 4194304 2848 0 0 0 68 1 0 0 22 0 1 0 149268300 13209600 2084 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/9132/statm: 3225 2084 103 219 0 3003 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12900

[startup+1.50136 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9133
/proc/meminfo: memFree=867248/2055920 swapFree=4174092/4192956
[pid=9132] ppid=9130 vsize=12768 CPUtime=1.49
/proc/9132/stat : 9132 (minisat) R 9130 9132 9006 0 -1 4194304 4203 0 0 0 148 1 0 0 25 0 1 0 149268300 13074432 2421 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/9132/statm: 3192 2421 103 219 0 2970 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12768

[startup+3.1015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9133
/proc/meminfo: memFree=864880/2055920 swapFree=4174092/4192956
[pid=9132] ppid=9130 vsize=20552 CPUtime=3.09
/proc/9132/stat : 9132 (minisat) R 9130 9132 9006 0 -1 4194304 6877 0 0 0 307 2 0 0 25 0 1 0 149268300 21045248 3751 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/9132/statm: 5138 3751 103 219 0 4916 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 20552

[startup+6.30178 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9133
/proc/meminfo: memFree=853296/2055920 swapFree=4174092/4192956
[pid=9132] ppid=9130 vsize=24444 CPUtime=6.3
/proc/9132/stat : 9132 (minisat) R 9130 9132 9006 0 -1 4194304 8885 0 0 0 626 4 0 0 25 0 1 0 149268300 25030656 5759 1992294400 4194304 5092341 548682068848 18446744073709551615 4241422 0 0 4096 3 0 0 0 17 1 0 0
/proc/9132/statm: 6111 5759 103 219 0 5889 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 24444

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

Child status: 20
Real time (s): 6.32304
CPU time (s): 6.32304
CPU user time (s): 6.27704
CPU system time (s): 0.045993
CPU usage (%): 100
Max. virtual memory (cumulated for all children) (KiB): 24444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.27705
system time used= 0.045993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8895
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= 18

runsolver used 0.006998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node50 at 2009-05-01 23:13:23
IDJOB=1773582
IDBENCH=70756
IDSOLVER=608
FILE ID=node50/1773582-1241212402
PBS_JOBID= 9224713
Free space on /tmp= 66504 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor064.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773582-1241212402/watcher-1773582-1241212402 -o /tmp/evaluation-result-1773582-1241212402/solver-1773582-1241212402 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773582-1241212402.cnf

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

MD5SUM BENCH= 1a151a1e93387c74239b48070e3eed97
RANDOM SEED=284995289

node50.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		: 3000.216
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		: 3000.216
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:        876632 kB
Buffers:         84912 kB
Cached:         984928 kB
SwapCached:      13128 kB
Active:         136848 kB
Inactive:       947812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        876632 kB
SwapTotal:     4192956 kB
SwapFree:      4174092 kB
Dirty:            1548 kB
Writeback:           0 kB
Mapped:          13516 kB
Slab:            80592 kB
Committed_AS:   601528 kB
PageTables:       1452 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= 66500 MiB
End job on node50 at 2009-05-01 23:13:29