Trace number 335005

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 2006? (exit code) 3.3165 3.31923

General information on the benchmark

Namecrafted/Hard/contest05/phnf/
phnf-size10-exclusive-equilarge_l1.used-as.sat04-893.sat05-4187.reshuffled-07.cnf
MD5SUM181c4935b6e4cd791aedd030930111fa
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables16866
Number of clauses2507999
Sum of the clauses size5028712
Maximum clause length10
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22505923
Number of clauses of size 31
Number of clauses of size 47
Number of clauses of size 59
Number of clauses of size over 52059

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/335005-1173604035/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
3.20/3.28	c this formula cannot been solved by kcnfs
3.20/3.28

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-335005-1173604035 -o ROOT/results/node13/solver-335005-1173604035 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/335005-1173604035/kcnfs-2006 /tmp/evaluation/335005-1173604035/instance-335005-1173604035.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): 2400 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: 1.01 0.99 0.91 3/77 5879
/proc/meminfo: memFree=1833400/2055920 swapFree=4158788/4192956
[pid=5879] ppid=5877 vsize=180908 CPUtime=0
/proc/5879/stat : 5879 (kcnfs-2006) R 5877 5879 5104 0 -1 4194304 121 0 0 0 0 0 0 0 18 0 1 0 380358448 185249792 106 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5879/statm: 45227 107 47 158 0 45067 0

[startup+0.016514 s]
/proc/loadavg: 1.01 0.99 0.91 3/77 5879
/proc/meminfo: memFree=1833400/2055920 swapFree=4158788/4192956
[pid=5879] ppid=5877 vsize=181568 CPUtime=0.01
/proc/5879/stat : 5879 (kcnfs-2006) R 5877 5879 5104 0 -1 4194304 281 0 0 0 1 0 0 0 18 0 1 0 380358448 185925632 266 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/5879/statm: 45392 267 47 158 0 45232 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 181568

[startup+0.101526 s]
/proc/loadavg: 1.01 0.99 0.91 3/77 5879
/proc/meminfo: memFree=1833400/2055920 swapFree=4158788/4192956
[pid=5879] ppid=5877 vsize=186188 CPUtime=0.09
/proc/5879/stat : 5879 (kcnfs-2006) R 5877 5879 5104 0 -1 4194304 1425 0 0 0 9 0 0 0 18 0 1 0 380358448 190656512 1410 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5879/statm: 46547 1410 47 158 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186188

[startup+0.301552 s]
/proc/loadavg: 1.01 0.99 0.91 3/77 5879
/proc/meminfo: memFree=1833400/2055920 swapFree=4158788/4192956
[pid=5879] ppid=5877 vsize=196880 CPUtime=0.29
/proc/5879/stat : 5879 (kcnfs-2006) R 5877 5879 5104 0 -1 4194304 4111 0 0 0 27 2 0 0 19 0 1 0 380358448 201605120 4096 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5879/statm: 49220 4097 47 158 0 49060 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196880

[startup+0.701605 s]
/proc/loadavg: 1.01 0.99 0.91 3/77 5879
/proc/meminfo: memFree=1833400/2055920 swapFree=4158788/4192956
[pid=5879] ppid=5877 vsize=218396 CPUtime=0.69
/proc/5879/stat : 5879 (kcnfs-2006) R 5877 5879 5104 0 -1 4194304 9483 0 0 0 65 4 0 0 23 0 1 0 380358448 223637504 9468 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5879/statm: 54599 9468 47 158 0 54439 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218396

[startup+1.50171 s]
/proc/loadavg: 1.01 0.99 0.91 2/78 5880
/proc/meminfo: memFree=1779376/2055920 swapFree=4158788/4192956
[pid=5879] ppid=5877 vsize=261296 CPUtime=1.49
/proc/5879/stat : 5879 (kcnfs-2006) R 5877 5879 5104 0 -1 4194304 20224 0 0 0 140 9 0 0 25 0 1 0 380358448 267567104 20209 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5879/statm: 65324 20210 47 158 0 65164 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261296

[startup+3.10192 s]
/proc/loadavg: 1.01 0.99 0.91 2/78 5880
/proc/meminfo: memFree=1720056/2055920 swapFree=4158788/4192956
[pid=5879] ppid=5877 vsize=347360 CPUtime=3.09
/proc/5879/stat : 5879 (kcnfs-2006) R 5877 5879 5104 0 -1 4194304 41720 0 0 0 287 22 0 0 25 0 1 0 380358448 355696640 41705 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5879/statm: 86840 41706 47 158 0 86680 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 347360

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

[startup+3.30595 s]
/proc/loadavg: 1.01 0.99 0.91 2/78 5880
/proc/meminfo: memFree=1660792/2055920 swapFree=4158788/4192956
[pid=5879] ppid=5877 vsize=0 CPUtime=3.29
/proc/5879/stat : 5879 (kcnfs-2006) R 5877 5879 5104 0 -1 4194308 44219 0 0 0 304 25 0 0 25 0 1 0 380358448 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/5879/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 3.29
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 3.31923
CPU time (s): 3.3165
CPU user time (s): 3.04954
CPU system time (s): 0.266959
CPU usage (%): 99.9176
Max. virtual memory (cumulated for all children) (KiB): 352904

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.04954
system time used= 0.266959
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 44219
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= 69

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Sun Mar 11 09:07:20 UTC 2007

IDJOB= 335005
IDBENCH= 24641
IDSOLVER= 113
FILE ID= node13/335005-1173604035

PBS_JOBID= 4101238

Free space on /tmp= 66418 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest05/phnf/phnf-size10-exclusive-equilarge_l1.used-as.sat04-893.sat05-4187.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/335005-1173604035/kcnfs-2006 /tmp/evaluation/335005-1173604035/instance-335005-1173604035.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-335005-1173604035 -o ROOT/results/node13/solver-335005-1173604035 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/335005-1173604035/kcnfs-2006 /tmp/evaluation/335005-1173604035/instance-335005-1173604035.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  181c4935b6e4cd791aedd030930111fa

RANDOM SEED= 6512978

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.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		: 3000.236
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		: 3000.236
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:       1833808 kB
Buffers:          4760 kB
Cached:         132360 kB
SwapCached:       2076 kB
Active:          95344 kB
Inactive:        64356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1833808 kB
SwapTotal:     4192956 kB
SwapFree:      4158788 kB
Dirty:           36944 kB
Writeback:           0 kB
Mapped:          30572 kB
Slab:            48012 kB
Committed_AS:  1640476 kB
PageTables:       1744 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= 66418 MiB

End job on node13 on Sun Mar 11 09:07:23 UTC 2007