Trace number 1725701

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 4.20336 4.20491

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-ukn001.sat05-3841.reshuffled-07.cnf
MD5SUM74af041eb51b172e799baf4bb7eaa52f
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.38479
Satisfiable
(Un)Satisfiability was proved
Number of variables2737
Number of clauses18375
Sum of the clauses size129048
Maximum clause length13
Minimum clause length1
Number of clauses of size 149
Number of clauses of size 2491
Number of clauses of size 32419
Number of clauses of size 4526
Number of clauses of size 5691
Number of clauses of size over 514199

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:          2737                                         |
0.00/0.03	c |  Number of clauses:           17993                                         |
0.00/0.03	c |  Parse time:                   0.03 s                                       |
0.09/0.18	c |  Simplification time:          0.14 s                                       |
0.09/0.18	c |                                                                             |
0.09/0.18	c ============================[ Search Statistics ]==============================
0.09/0.18	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.18	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.18	c ===============================================================================
0.09/0.18	c |       100 |    2132    12073    77654 |     4426      100     12 |  2.083 % |
0.09/0.19	c |       250 |    2132    12073    77654 |     4869      250     15 |  2.083 % |
0.09/0.19	c |       475 |    2132    12073    77654 |     5356      475     15 |  2.083 % |
0.19/0.20	c |       812 |    2132    12073    77654 |     5892      812     15 |  2.083 % |
0.19/0.21	c |      1318 |    2132    12073    77654 |     6481     1318     17 |  2.083 % |
0.19/0.23	c |      2077 |    2132    12073    77654 |     7129     2077     18 |  2.083 % |
0.19/0.27	c |      3216 |    2132    12073    77654 |     7842     3216     21 |  2.083 % |
0.29/0.32	c |      4924 |    2132    12073    77654 |     8626     4924     20 |  2.083 % |
0.39/0.45	c |      7486 |    2132    12073    77654 |     9489     7486     24 |  2.083 % |
0.59/0.66	c |     11330 |    2132    12073    77654 |    10438     6513     24 |  2.083 % |
0.89/1.00	c |     17096 |    2132    12073    77654 |    11481     6963     23 |  2.083 % |
1.59/1.64	c |     25745 |    2132    12073    77654 |    12630     9779     27 |  2.083 % |
2.69/2.73	c |     38719 |    2132    12073    77654 |    13893     9987     26 |  2.083 % |
4.19/4.20	c ===============================================================================
4.19/4.20	c restarts              : 170
4.19/4.20	c conflicts             : 54703          (13076 /sec)
4.19/4.20	c decisions             : 142926         (34165 /sec)
4.19/4.20	c propagations          : 3713795        (887753 /sec)
4.19/4.20	c conflict literals     : 1718547        (18.68 % deleted)
4.19/4.20	c Memory used           : 19.03 MB
4.19/4.20	c CPU time              : 4.18336 s
4.19/4.20	c 
4.19/4.20	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-1725701-1240706219/watcher-1725701-1240706219 -o /tmp/evaluation-result-1725701-1240706219/solver-1725701-1240706219 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1725701-1240706219.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: 1.00 1.00 1.00 2/64 19554
/proc/meminfo: memFree=1212480/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=7784 CPUtime=0
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 400 0 0 0 0 0 0 0 18 0 1 0 98655119 7970816 384 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 1946 384 63 219 0 1724 0

[startup+0.070071 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 19554
/proc/meminfo: memFree=1212480/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=8904 CPUtime=0.06
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 843 0 0 0 6 0 0 0 18 0 1 0 98655119 9117696 827 1992294400 4194304 5092341 548682068832 18446744073709551615 4220562 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 2226 827 88 219 0 2004 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 8904

[startup+0.101073 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 19554
/proc/meminfo: memFree=1212480/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=9068 CPUtime=0.09
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 866 0 0 0 9 0 0 0 18 0 1 0 98655119 9285632 850 1992294400 4194304 5092341 548682068832 18446744073709551615 4223724 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 2267 850 88 219 0 2045 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9068

[startup+0.30109 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 19554
/proc/meminfo: memFree=1212480/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=9068 CPUtime=0.29
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 1079 0 0 0 29 0 0 0 19 0 1 0 98655119 9285632 880 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 2267 880 102 219 0 2045 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9068

[startup+0.701125 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 19554
/proc/meminfo: memFree=1212480/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=9068 CPUtime=0.69
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 1518 0 0 0 69 0 0 0 22 0 1 0 98655119 9285632 979 1992294400 4194304 5092341 548682068832 18446744073709551615 4358240 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 2267 979 102 219 0 2045 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9068

[startup+1.50219 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 19555
/proc/meminfo: memFree=1207416/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=19476 CPUtime=1.49
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 2347 0 0 0 148 1 0 0 25 0 1 0 98655119 19943424 1808 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 4869 1808 102 219 0 4647 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19476

[startup+3.10133 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 19555
/proc/meminfo: memFree=1203320/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=14288 CPUtime=3.09
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 3087 0 0 0 308 1 0 0 25 0 1 0 98655119 14630912 1632 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 3572 1632 102 219 0 3350 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14288

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

[startup+3.9014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 19555
/proc/meminfo: memFree=1204856/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=19480 CPUtime=3.89
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 3636 0 0 0 388 1 0 0 25 0 1 0 98655119 19947520 2181 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 4870 2181 102 219 0 4648 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 19480

[startup+4.10142 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 19555
/proc/meminfo: memFree=1204856/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=19480 CPUtime=4.09
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 3636 0 0 0 408 1 0 0 25 0 1 0 98655119 19947520 2181 1992294400 4194304 5092341 548682068832 18446744073709551615 4249968 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 4870 2181 102 219 0 4648 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 19480

[startup+4.20143 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 19555
/proc/meminfo: memFree=1204856/2055920 swapFree=4192812/4192956
[pid=19554] ppid=19552 vsize=19480 CPUtime=4.19
/proc/19554/stat : 19554 (minisat) R 19552 19554 18889 0 -1 4194304 3636 0 0 0 418 1 0 0 25 0 1 0 98655119 19947520 2181 1992294400 4194304 5092341 548682068832 18446744073709551615 4240515 0 0 4096 3 0 0 0 17 1 0 0
/proc/19554/statm: 4870 2181 102 219 0 4648 0
Current children cumulated CPU time (s) 4.19
Current children cumulated vsize (KiB) 19480

Child status: 10
Real time (s): 4.20491
CPU time (s): 4.20336
CPU user time (s): 4.18436
CPU system time (s): 0.018997
CPU usage (%): 99.9632
Max. virtual memory (cumulated for all children) (KiB): 24664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.18436
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3646
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= 8

runsolver used 0.004999 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node31 at 2009-04-26 02:36:59
IDJOB=1725701
IDBENCH=24595
IDSOLVER=546
FILE ID=node31/1725701-1240706219
PBS_JOBID= 9186758
Free space on /tmp= 66408 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-ukn001.sat05-3841.reshuffled-07.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725701-1240706219/watcher-1725701-1240706219 -o /tmp/evaluation-result-1725701-1240706219/solver-1725701-1240706219 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1725701-1240706219.cnf

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

MD5SUM BENCH= 74af041eb51b172e799baf4bb7eaa52f
RANDOM SEED=1772836670

node31.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		: 3000.213
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	: 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		: 3000.213
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:       1212960 kB
Buffers:         65296 kB
Cached:         709904 kB
SwapCached:          0 kB
Active:         129596 kB
Inactive:       660548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1212960 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1600 kB
Writeback:           0 kB
Mapped:          24708 kB
Slab:            38480 kB
Committed_AS:   356712 kB
PageTables:       1464 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= 66404 MiB
End job on node31 at 2009-04-26 02:37:04