Trace number 291641

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, and are wall clock time (not CPU 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
KCNFS 2006SAT 3.9724 3.97653

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S256297823-16.SAT.shuffled.cnf
MD5SUM98acb22e903e1289d5e4bb5a28958843
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05799
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses1704
Sum of the clauses size8520
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51704
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/291641-1171744899/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/291641-1171744899/instance-291641-1171744899.cnf'
0.00/0.00	c [#vars: 80, #clauses: 1704, 5-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 1704)
3.88/3.97	c RBSH-propagate until depth 1 (fix point: 6 updates) 
3.88/3.97	s SATISFIABLE
3.88/3.97	v        1        2       -3        4       -5        6       -7
3.88/3.97	v       -8        9      -10       11       12       13       14
3.88/3.97	v      -15      -16      -17      -18      -19       20      -21
3.88/3.97	v      -22      -23      -24      -25      -26      -27      -28
3.88/3.97	v       29       30       31      -32      -33       34      -35
3.88/3.97	v       36       37       38      -39      -40       41      -42
3.88/3.97	v       43      -44       45       46       47       48       49
3.88/3.97	v      -50       51       52       53      -54       55      -56
3.88/3.97	v       57      -58      -59       60      -61       62      -63
3.88/3.97	v       64       65       66      -67      -68      -69      -70
3.88/3.97	v       71       72      -73       74      -75       76       77
3.88/3.97	v       78      -79      -80        0
3.88/3.97	c Computation time     : 3.970 seconds
3.88/3.97	c Execution time       : 3.970 seconds
3.88/3.97	c Size of search tree  : 16116 nodes
3.88/3.97	c average speed        : 4059.446 nodes/sec.
3.88/3.97

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node68/watcher-291641-1171744899 -o ROOT/results/node68/solver-291641-1171744899 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/291641-1171744899/kcnfs-2006 /tmp/evaluation/291641-1171744899/instance-291641-1171744899.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.84 0.94 0.90 3/64 31442
/proc/meminfo: memFree=871096/2055920 swapFree=4183892/4192956
[pid=31442] ppid=31440 vsize=180904 CPUtime=0
/proc/31442/stat : 31442 (kcnfs-2006) R 31440 31442 31334 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 194447741 185245696 110 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134832861 0 0 4096 0 0 0 0 17 1 0 0
/proc/31442/statm: 45226 113 47 158 0 45066 0

[startup+0.107308 s]
/proc/loadavg: 0.84 0.94 0.90 3/64 31442
/proc/meminfo: memFree=871096/2055920 swapFree=4183892/4192956
[pid=31442] ppid=31440 vsize=181168 CPUtime=0.1
/proc/31442/stat : 31442 (kcnfs-2006) R 31440 31442 31334 0 -1 4194304 302 0 0 0 10 0 0 0 18 0 1 0 194447741 185516032 285 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134742972 0 0 4096 0 0 0 0 17 1 0 0
/proc/31442/statm: 45292 285 62 158 0 45132 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 181168

[startup+0.515343 s]
/proc/loadavg: 0.84 0.94 0.90 3/64 31442
/proc/meminfo: memFree=871096/2055920 swapFree=4183892/4192956
[pid=31442] ppid=31440 vsize=181168 CPUtime=0.51
/proc/31442/stat : 31442 (kcnfs-2006) R 31440 31442 31334 0 -1 4194304 330 0 0 0 51 0 0 0 21 0 1 0 194447741 185516032 313 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134569569 0 0 4096 0 0 0 0 17 1 0 0
/proc/31442/statm: 45292 313 76 158 0 45132 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 181168

[startup+1.33542 s]
/proc/loadavg: 0.85 0.94 0.90 2/65 31443
/proc/meminfo: memFree=870000/2055920 swapFree=4183892/4192956
[pid=31442] ppid=31440 vsize=181168 CPUtime=1.33
/proc/31442/stat : 31442 (kcnfs-2006) R 31440 31442 31334 0 -1 4194304 330 0 0 0 133 0 0 0 25 0 1 0 194447741 185516032 313 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134569677 0 0 4096 0 0 0 0 17 1 0 0
/proc/31442/statm: 45292 313 76 158 0 45132 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 181168

[startup+2.97157 s]
/proc/loadavg: 0.85 0.94 0.90 2/65 31443
/proc/meminfo: memFree=869872/2055920 swapFree=4183892/4192956
[pid=31442] ppid=31440 vsize=181168 CPUtime=2.97
/proc/31442/stat : 31442 (kcnfs-2006) R 31440 31442 31334 0 -1 4194304 330 0 0 0 297 0 0 0 25 0 1 0 194447741 185516032 313 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134569665 0 0 4096 0 0 0 0 17 1 0 0
/proc/31442/statm: 45292 313 76 158 0 45132 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 181168

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

[startup+3.27759 s]
/proc/loadavg: 0.85 0.94 0.90 2/65 31443
/proc/meminfo: memFree=869872/2055920 swapFree=4183892/4192956
[pid=31442] ppid=31440 vsize=181168 CPUtime=3.27
/proc/31442/stat : 31442 (kcnfs-2006) R 31440 31442 31334 0 -1 4194304 330 0 0 0 327 0 0 0 25 0 1 0 194447741 185516032 313 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134690775 0 0 4096 0 0 0 0 17 1 0 0
/proc/31442/statm: 45292 313 76 158 0 45132 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 181168

[startup+3.68963 s]
/proc/loadavg: 0.85 0.94 0.90 2/65 31443
/proc/meminfo: memFree=869872/2055920 swapFree=4183892/4192956
[pid=31442] ppid=31440 vsize=181168 CPUtime=3.68
/proc/31442/stat : 31442 (kcnfs-2006) R 31440 31442 31334 0 -1 4194304 330 0 0 0 368 0 0 0 25 0 1 0 194447741 185516032 313 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134712467 0 0 4096 0 0 0 0 17 1 0 0
/proc/31442/statm: 45292 313 76 158 0 45132 0
Current children cumulated CPU time (s) 3.68
Current children cumulated vsize (KiB) 181168

[startup+3.89365 s]
/proc/loadavg: 0.85 0.94 0.90 2/65 31443
/proc/meminfo: memFree=869872/2055920 swapFree=4183892/4192956
[pid=31442] ppid=31440 vsize=181168 CPUtime=3.88
/proc/31442/stat : 31442 (kcnfs-2006) R 31440 31442 31334 0 -1 4194304 330 0 0 0 388 0 0 0 25 0 1 0 194447741 185516032 313 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134684363 0 0 4096 0 0 0 0 17 1 0 0
/proc/31442/statm: 45292 313 76 158 0 45132 0
Current children cumulated CPU time (s) 3.88
Current children cumulated vsize (KiB) 181168

Child status: 10
Real time (s): 3.97653
CPU time (s): 3.9724
CPU user time (s): 3.9704
CPU system time (s): 0.001999
CPU usage (%): 99.8961
Max. virtual memory (cumulated for all children) (KiB): 181168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.9704
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 340
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= 8
involuntary context switches= 18

runsolver used 0.009998 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Sat Feb 17 20:41:40 UTC 2007

IDJOB= 291641
IDBENCH= 19820
IDSOLVER= 113
FILE ID= node68/291641-1171744899

PBS_JOBID= 3839456

Free space on /tmp= 66562 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S256297823-16.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/291641-1171744899/kcnfs-2006 /tmp/evaluation/291641-1171744899/instance-291641-1171744899.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-291641-1171744899 -o ROOT/results/node68/solver-291641-1171744899 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/291641-1171744899/kcnfs-2006 /tmp/evaluation/291641-1171744899/instance-291641-1171744899.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  98acb22e903e1289d5e4bb5a28958843

RANDOM SEED= 652905566

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.234
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		: 3000.234
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:        871568 kB
Buffers:         38292 kB
Cached:        1050856 kB
SwapCached:       3000 kB
Active:         703732 kB
Inactive:       394840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        871568 kB
SwapTotal:     4192956 kB
SwapFree:      4183892 kB
Dirty:            3264 kB
Writeback:           0 kB
Mapped:          15256 kB
Slab:            71884 kB
Committed_AS:   567212 kB
PageTables:       1380 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= 66562 MiB

End job on node68 on Sat Feb 17 20:41:46 UTC 2007