Trace number 1725748

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
VARSAT-random 2009-03-22SAT 28.5797 28.5896

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-ukn005.sat05-3845.reshuffled-07.cnf
MD5SUM50ea7ab54b71dd15b01cd5fd293d58eb
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.76073
Satisfiable
(Un)Satisfiability was proved
Number of variables2765
Number of clauses18046
Sum of the clauses size127926
Maximum clause length13
Minimum clause length1
Number of clauses of size 135
Number of clauses of size 2400
Number of clauses of size 32372
Number of clauses of size 4481
Number of clauses of size 5648
Number of clauses of size over 514110

Solver Data 

0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  2765                                                 |
0.00/0.00	c |  Number of clauses:    18046                                                |
0.04/0.06	c |  Parsing time:         0.05         s                                       |
0.04/0.06	c |  Timeout:              43200 s
0.04/0.06	c |  Random Seed:          712761583.000000
0.04/0.06	c |  Heuristic:            EMSP-G, threshold 0.750                              |
0.04/0.06	c |  Branching Rule:       default (solution-guided)                            |
0.04/0.06	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.04/0.06	c |                                                                             |
0.19/0.23	c ============================[ Search Statistics ]==============================
0.19/0.23	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.23	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.23	c ===============================================================================
0.19/0.23	c |         0 |    2157    11940    77315 |     3980        0    nan |  0.000 % |
2.29/2.39	c |       101 |    2157    11940    77315 |     4378      101     13 |  2.062 % |
4.48/4.59	c |       251 |    2157    11940    77315 |     4815      251     13 |  2.062 % |
6.68/6.79	c |       476 |    2157    11940    77315 |     5297      476     16 |  2.062 % |
8.98/9.03	c |       813 |    2157    11940    77315 |     5827      813     15 |  2.062 % |
10.38/10.43	c |      1319 |    2157    11940    77315 |     6409     1319     14 |  2.062 % |
11.68/11.80	c |      2078 |    2157    11940    77315 |     7050     2078     16 |  2.062 % |
13.18/13.20	c |      3217 |    2157    11940    77315 |     7755     3217     16 |  2.062 % |
14.58/14.68	c |      4925 |    2157    11940    77315 |     8531     4925     18 |  2.062 % |
16.28/16.30	c |      7489 |    2157    11940    77315 |     9384     7489     22 |  2.062 % |
17.98/18.06	c |     11334 |    2157    11940    77315 |    10323     6554     27 |  2.062 % |
20.18/20.22	c |     17100 |    2157    11940    77315 |    11355     7059     28 |  2.062 % |
22.69/22.76	c |     25750 |    2157    11940    77315 |    12490     9914     31 |  2.062 % |
26.39/26.43	c |     38724 |    2157    11940    77315 |    13740    10226     33 |  2.062 % |
28.49/28.58	c ===============================================================================
28.49/28.58	c surveys--CPU time (sec)   : 22.9835        (80.46 % of total)
28.49/28.58	c surveys--attempted        : 312            (14 /sec)
28.49/28.58	c surveys--converged        : 312            (100.00 % successful)
28.49/28.58	c restarts              : 14
28.49/28.58	c conflicts             : 41977          (7521 /sec)
28.49/28.58	c decisions             : 92480          (1.84 % random) (16570 /sec)
28.49/28.58	c propagations          : 2688811        (481766 /sec)
28.49/28.58	c conflict literals     : 1413404        (27.12 % deleted)
28.49/28.58	c Memory used           : 8.55 MB
28.49/28.58	c Total CPU time (sec)      : 28.5647     
28.49/28.58	c 
28.49/28.58	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-1725748-1240706423/watcher-1725748-1240706423 -o /tmp/evaluation-result-1725748-1240706423/solver-1725748-1240706423 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-random_static -seed=712761583 HOME/instance-1725748-1240706423.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: 1.85 1.77 1.45 3/64 22626
/proc/meminfo: memFree=1596920/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=2932 CPUtime=0
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 472 0 0 0 0 0 0 0 18 0 1 0 98670863 3002368 457 1992294400 4194304 5102416 548682068784 18446744073709551615 4250704 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 733 457 88 221 0 509 0

[startup+0.053708 s]
/proc/loadavg: 1.85 1.77 1.45 3/64 22626
/proc/meminfo: memFree=1596920/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=6408 CPUtime=0.04
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1334 0 0 0 4 0 0 0 18 0 1 0 98670863 6561792 1319 1992294400 4194304 5102416 548682068784 18446744073709551615 4491479 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 1602 1319 88 221 0 1378 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 6408

[startup+0.102717 s]
/proc/loadavg: 1.85 1.77 1.45 3/64 22626
/proc/meminfo: memFree=1596920/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=7004 CPUtime=0.09
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1496 0 0 0 9 0 0 0 18 0 1 0 98670863 7172096 1481 1992294400 4194304 5102416 548682068784 18446744073709551615 4272828 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 1751 1481 98 221 0 1527 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7004

[startup+0.302754 s]
/proc/loadavg: 1.85 1.77 1.45 3/64 22626
/proc/meminfo: memFree=1596920/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=7124 CPUtime=0.29
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1634 0 0 0 29 0 0 0 19 0 1 0 98670863 7294976 1528 1992294400 4194304 5102416 548682068784 18446744073709551615 4220643 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 1781 1528 102 221 0 1557 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7124

[startup+0.70183 s]
/proc/loadavg: 1.85 1.77 1.45 3/64 22626
/proc/meminfo: memFree=1596920/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=7124 CPUtime=0.69
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1634 0 0 0 69 0 0 0 22 0 1 0 98670863 7294976 1528 1992294400 4194304 5102416 548682068784 18446744073709551615 4220643 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 1781 1528 102 221 0 1557 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7124

[startup+1.50198 s]
/proc/loadavg: 1.85 1.77 1.45 2/65 22627
/proc/meminfo: memFree=1590960/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=7124 CPUtime=1.49
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1634 0 0 0 149 0 0 0 25 0 1 0 98670863 7294976 1528 1992294400 4194304 5102416 548682068784 18446744073709551615 4220204 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 1781 1528 102 221 0 1557 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7124

[startup+3.10128 s]
/proc/loadavg: 1.85 1.77 1.45 2/65 22627
/proc/meminfo: memFree=1590832/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=7124 CPUtime=3.09
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1644 0 0 0 309 0 0 0 25 0 1 0 98670863 7294976 1538 1992294400 4194304 5102416 548682068784 18446744073709551615 4220204 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 1781 1538 112 221 0 1557 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7124

[startup+6.30189 s]
/proc/loadavg: 1.78 1.75 1.44 2/65 22627
/proc/meminfo: memFree=1590832/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=7124 CPUtime=6.28
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1644 0 0 0 628 0 0 0 25 0 1 0 98670863 7294976 1538 1992294400 4194304 5102416 548682068784 18446744073709551615 4220424 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 1781 1538 112 221 0 1557 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 7124

[startup+12.7011 s]
/proc/loadavg: 1.72 1.74 1.44 2/65 22627
/proc/meminfo: memFree=1590712/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=7124 CPUtime=12.68
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1644 0 0 0 1268 0 0 0 25 0 1 0 98670863 7294976 1538 1992294400 4194304 5102416 548682068784 18446744073709551615 4220228 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 1781 1538 112 221 0 1557 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 7124

[startup+25.5015 s]
/proc/loadavg: 1.56 1.70 1.43 2/65 22627
/proc/meminfo: memFree=1589816/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=8348 CPUtime=25.49
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1927 0 0 0 2548 1 0 0 25 0 1 0 98670863 8548352 1821 1992294400 4194304 5102416 548682068784 18446744073709551615 4249660 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 2087 1821 112 221 0 1863 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 8348

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

[startup+27.1018 s]
/proc/loadavg: 1.56 1.70 1.43 2/65 22627
/proc/meminfo: memFree=1589688/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=8480 CPUtime=27.09
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1977 0 0 0 2708 1 0 0 25 0 1 0 98670863 8683520 1871 1992294400 4194304 5102416 548682068784 18446744073709551615 4220213 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 2120 1871 112 221 0 1896 0
Current children cumulated CPU time (s) 27.09
Current children cumulated vsize (KiB) 8480

[startup+27.902 s]
/proc/loadavg: 1.56 1.70 1.43 2/65 22627
/proc/meminfo: memFree=1589688/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=8480 CPUtime=27.88
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1977 0 0 0 2787 1 0 0 25 0 1 0 98670863 8683520 1871 1992294400 4194304 5102416 548682068784 18446744073709551615 4220253 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 2120 1871 112 221 0 1896 0
Current children cumulated CPU time (s) 27.88
Current children cumulated vsize (KiB) 8480

[startup+28.301 s]
/proc/loadavg: 1.56 1.70 1.43 2/65 22627
/proc/meminfo: memFree=1589688/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=8620 CPUtime=28.28
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 1995 0 0 0 2827 1 0 0 25 0 1 0 98670863 8826880 1889 1992294400 4194304 5102416 548682068784 18446744073709551615 4249634 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 2155 1889 112 221 0 1931 0
Current children cumulated CPU time (s) 28.28
Current children cumulated vsize (KiB) 8620

[startup+28.5011 s]
/proc/loadavg: 1.52 1.69 1.43 2/65 22627
/proc/meminfo: memFree=1589560/2055920 swapFree=4177552/4192956
[pid=22626] ppid=22624 vsize=8620 CPUtime=28.49
/proc/22626/stat : 22626 (varsat-random_s) R 22624 22626 22324 0 -1 4194304 2015 0 0 0 2848 1 0 0 25 0 1 0 98670863 8826880 1909 1992294400 4194304 5102416 548682068784 18446744073709551615 4249520 0 0 4096 3 0 0 0 17 1 0 0
/proc/22626/statm: 2155 1909 112 221 0 1931 0
Current children cumulated CPU time (s) 28.49
Current children cumulated vsize (KiB) 8620

Child status: 10
Real time (s): 28.5896
CPU time (s): 28.5797
CPU user time (s): 28.5647
CPU system time (s): 0.014997
CPU usage (%): 99.9652
Max. virtual memory (cumulated for all children) (KiB): 8620

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.5647
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2040
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= 49

runsolver used 0.024996 second user time and 0.068989 second system time

The end

Launcher Data 

Begin job on node37 at 2009-04-26 02:40:23
IDJOB=1725748
IDBENCH=24597
IDSOLVER=539
FILE ID=node37/1725748-1240706423
PBS_JOBID= 9186803
Free space on /tmp= 66300 MiB

SOLVER NAME= VARSAT-random 2009-03-22
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-ukn005.sat05-3845.reshuffled-07.cnf
COMMAND LINE= HOME/varsat-random_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725748-1240706423/watcher-1725748-1240706423 -o /tmp/evaluation-result-1725748-1240706423/solver-1725748-1240706423 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-random_static -seed=712761583 HOME/instance-1725748-1240706423.cnf

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

MD5SUM BENCH= 50ea7ab54b71dd15b01cd5fd293d58eb
RANDOM SEED=712761583

node37.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		: 3000.259
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		: 3000.259
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:       1597336 kB
Buffers:         69116 kB
Cached:         326360 kB
SwapCached:      10280 kB
Active:         167576 kB
Inactive:       240424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1597336 kB
SwapTotal:     4192956 kB
SwapFree:      4177552 kB
Dirty:            1860 kB
Writeback:           0 kB
Mapped:          13536 kB
Slab:            36664 kB
Committed_AS:   445520 kB
PageTables:       1372 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= 66300 MiB
End job on node37 at 2009-04-26 02:40:52