Trace number 1725648

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)SAT 2.68259 2.68264

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-brn004.sat05-3669.reshuffled-07.cnf
MD5SUM51245c7b8edb32c4dbd94daf982c00d7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.72974
Satisfiable
(Un)Satisfiability was proved
Number of variables2435
Number of clauses16016
Sum of the clauses size112873
Maximum clause length13
Minimum clause length1
Number of clauses of size 135
Number of clauses of size 2385
Number of clauses of size 32207
Number of clauses of size 4298
Number of clauses of size 5447
Number of clauses of size over 512644

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 |                                                                             |
0.00/0.03	c |  Number of variables:          2435                                         |
0.00/0.03	c |  Number of clauses:           15784                                         |
0.00/0.03	c |  Parse time:                   0.03 s                                       |
0.09/0.15	c |  Simplification time:          0.12 s                                       |
0.09/0.15	c |                                                                             |
0.09/0.15	c ============================[ Search Statistics ]==============================
0.09/0.15	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.15	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.15	c ===============================================================================
0.09/0.16	c |       100 |    1861    10240    65342 |     3754      100     10 |  2.341 % |
0.09/0.16	c |       250 |    1861    10240    65342 |     4130      250     13 |  2.341 % |
0.09/0.16	c |       475 |    1861    10240    65342 |     4543      475     14 |  2.341 % |
0.09/0.17	c |       812 |    1861    10240    65342 |     4997      812     14 |  2.341 % |
0.09/0.18	c |      1318 |    1861    10240    65342 |     5497     1318     15 |  2.341 % |
0.19/0.20	c |      2077 |    1861    10240    65342 |     6046     2077     15 |  2.341 % |
0.19/0.23	c |      3216 |    1861    10240    65342 |     6651     3216     17 |  2.341 % |
0.19/0.28	c |      4924 |    1861    10240    65342 |     7316     4924     17 |  2.341 % |
0.29/0.40	c |      7486 |    1861    10240    65342 |     8048     3751     19 |  2.341 % |
0.49/0.56	c |     11330 |    1861    10240    65342 |     8853     7595     22 |  2.341 % |
0.79/0.88	c |     17096 |    1861    10240    65342 |     9738     8882     25 |  2.341 % |
1.39/1.45	c |     25745 |    1861    10240    65342 |    10712     7641     24 |  2.341 % |
2.29/2.38	c |     38719 |    1861    10240    65342 |    11783     9750     27 |  2.341 % |
2.59/2.67	c ===============================================================================
2.59/2.68	c restarts              : 127
2.59/2.68	c conflicts             : 41951          (15726 /sec)
2.59/2.68	c decisions             : 121233         (45447 /sec)
2.59/2.68	c propagations          : 2516096        (943208 /sec)
2.59/2.68	c conflict literals     : 1171418        (18.38 % deleted)
2.59/2.68	c Memory used           : 19.09 MB
2.59/2.68	c CPU time              : 2.66759 s
2.59/2.68	c 
2.59/2.68	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1725648-1240705913/watcher-1725648-1240705913 -o /tmp/evaluation-result-1725648-1240705913/solver-1725648-1240705913 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1725648-1240705913.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: 1.72 1.83 1.72 3/64 17890
/proc/meminfo: memFree=1458752/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=7784 CPUtime=0
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 354 0 0 0 0 0 0 0 18 0 1 0 98624089 7970816 338 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 1946 339 63 219 0 1724 0

[startup+0.083338 s]
/proc/loadavg: 1.72 1.83 1.72 3/64 17890
/proc/meminfo: memFree=1458752/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=8772 CPUtime=0.08
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 771 0 0 0 8 0 0 0 18 0 1 0 98624089 8982528 755 1992294400 4194304 5092341 548682068832 18446744073709551615 4223147 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 2193 755 88 219 0 1971 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 8772

[startup+0.10134 s]
/proc/loadavg: 1.72 1.83 1.72 3/64 17890
/proc/meminfo: memFree=1458752/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=8772 CPUtime=0.09
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 794 0 0 0 9 0 0 0 18 0 1 0 98624089 8982528 778 1992294400 4194304 5092341 548682068832 18446744073709551615 4223480 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 2193 778 88 219 0 1971 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8772

[startup+0.301369 s]
/proc/loadavg: 1.72 1.83 1.72 3/64 17890
/proc/meminfo: memFree=1458752/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=8772 CPUtime=0.29
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 991 0 0 0 29 0 0 0 19 0 1 0 98624089 8982528 811 1992294400 4194304 5092341 548682068832 18446744073709551615 4248079 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 2193 811 103 219 0 1971 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8772

[startup+0.701426 s]
/proc/loadavg: 1.72 1.83 1.72 3/64 17890
/proc/meminfo: memFree=1458752/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=14012 CPUtime=0.69
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 1534 0 0 0 69 0 0 0 22 0 1 0 98624089 14348288 1127 1992294400 4194304 5092341 548682068832 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 3503 1127 103 219 0 3281 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14012

[startup+1.50154 s]
/proc/loadavg: 1.72 1.83 1.72 2/65 17891
/proc/meminfo: memFree=1453240/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=19204 CPUtime=1.49
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 2092 0 0 0 149 0 0 0 25 0 1 0 98624089 19664896 1685 1992294400 4194304 5092341 548682068832 18446744073709551615 4241447 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 4801 1685 103 219 0 4579 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19204

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

[startup+2.30166 s]
/proc/loadavg: 1.72 1.83 1.72 2/65 17891
/proc/meminfo: memFree=1451448/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=19544 CPUtime=2.29
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 2344 0 0 0 229 0 0 0 25 0 1 0 98624089 20013056 1937 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 4886 1937 103 219 0 4664 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 19544

[startup+2.50169 s]
/proc/loadavg: 1.72 1.83 1.72 2/65 17891
/proc/meminfo: memFree=1451448/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=19544 CPUtime=2.49
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 2428 0 0 0 248 1 0 0 25 0 1 0 98624089 20013056 2021 1992294400 4194304 5092341 548682068832 18446744073709551615 4241095 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 4886 2021 103 219 0 4664 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 19544

[startup+2.6017 s]
/proc/loadavg: 1.72 1.83 1.72 2/65 17891
/proc/meminfo: memFree=1451448/2055920 swapFree=4192956/4192956
[pid=17890] ppid=17888 vsize=19544 CPUtime=2.59
/proc/17890/stat : 17890 (minisat) R 17888 17890 17703 0 -1 4194304 2460 0 0 0 258 1 0 0 25 0 1 0 98624089 20013056 2053 1992294400 4194304 5092341 548682068832 18446744073709551615 4252180 0 0 4096 3 0 0 0 17 1 0 0
/proc/17890/statm: 4886 2053 103 219 0 4664 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 19544

Child status: 10
Real time (s): 2.68264
CPU time (s): 2.68259
CPU user time (s): 2.66859
CPU system time (s): 0.013997
CPU usage (%): 99.9983
Max. virtual memory (cumulated for all children) (KiB): 19544

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.66859
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2470
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= 7

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node30 at 2009-04-26 02:31:53
IDJOB=1725648
IDBENCH=24594
IDSOLVER=546
FILE ID=node30/1725648-1240705913
PBS_JOBID= 9186794
Free space on /tmp= 66248 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-brn004.sat05-3669.reshuffled-07.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725648-1240705913/watcher-1725648-1240705913 -o /tmp/evaluation-result-1725648-1240705913/solver-1725648-1240705913 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1725648-1240705913.cnf

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

MD5SUM BENCH= 51245c7b8edb32c4dbd94daf982c00d7
RANDOM SEED=1713750476

node30.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		: 3000.265
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		: 3000.265
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:       1459168 kB
Buffers:         66324 kB
Cached:         443064 kB
SwapCached:          0 kB
Active:          50544 kB
Inactive:       473264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1459168 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1508 kB
Writeback:           0 kB
Mapped:          24172 kB
Slab:            58928 kB
Committed_AS:   443136 kB
PageTables:       1356 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= 66244 MiB
End job on node30 at 2009-04-26 02:31:56