Trace number 296807

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 2006UNSAT 26.295 26.3036

General information on the benchmark

Namerandom/OnTreshold/7SAT/v45/
unif-k7-r89-v45-c4005-S1311675672-04.UNSAT.shuffled.cnf
MD5SUM27cb152f3204cf614353bf8294798214
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark19.939
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of clauses4005
Sum of the clauses size28035
Maximum clause length7
Minimum clause length7
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 50
Number of clauses of size over 54005

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/296807-1171827467/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.01	c Input file : '/tmp/evaluation/296807-1171827467/instance-296807-1171827467.cnf'
0.00/0.01	c [#vars: 45, #clauses: 4005, 7-CNF]
0.00/0.02	c unit clauses propagate before processing (#clause: 4005)
26.21/26.30	c RBSH-propagate until depth 1 (fix point: 6 updates) 
26.21/26.30	s UNSATISFIABLE
26.21/26.30	c Computation time     : 26.280 seconds
26.21/26.30	c Execution time       : 26.290 seconds
26.21/26.30	c Size of search tree  : 85776 nodes
26.21/26.30	c average speed        : 3263.927 nodes/sec.
26.21/26.30

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node58/watcher-296807-1171827467 -o ROOT/results/node58/solver-296807-1171827467 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/296807-1171827467/kcnfs-2006 /tmp/evaluation/296807-1171827467/instance-296807-1171827467.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: 0.92 0.95 0.83 3/64 10418
/proc/meminfo: memFree=1030384/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=180908 CPUtime=0
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 125 0 0 0 0 0 0 0 18 0 1 0 202703433 185249792 110 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45227 111 47 158 0 45067 0

[startup+0.106862 s]
/proc/loadavg: 0.92 0.95 0.83 3/64 10418
/proc/meminfo: memFree=1030384/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=0.1
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 608 0 0 0 10 0 0 0 18 0 1 0 202703433 186327040 591 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134742151 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 591 62 158 0 45330 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 181960

[startup+0.514905 s]
/proc/loadavg: 0.92 0.95 0.83 3/64 10418
/proc/meminfo: memFree=1030384/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=0.51
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 608 0 0 0 51 0 0 0 21 0 1 0 202703433 186327040 591 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134742580 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 591 62 158 0 45330 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 181960

[startup+1.335 s]
/proc/loadavg: 0.92 0.95 0.83 2/65 10419
/proc/meminfo: memFree=1028136/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=1.33
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 639 0 0 0 133 0 0 0 25 0 1 0 202703433 186327040 622 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564740 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 622 76 158 0 45330 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 181960

[startup+2.97418 s]
/proc/loadavg: 0.92 0.95 0.83 2/65 10419
/proc/meminfo: memFree=1027944/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=2.97
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 640 0 0 0 297 0 0 0 25 0 1 0 202703433 186327040 623 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134569677 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 623 76 158 0 45330 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 181960

[startup+6.25154 s]
/proc/loadavg: 0.93 0.95 0.83 2/65 10419
/proc/meminfo: memFree=1027816/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=6.24
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 640 0 0 0 624 0 0 0 25 0 1 0 202703433 186327040 623 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134569514 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 623 76 158 0 45330 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 181960

[startup+12.7052 s]
/proc/loadavg: 0.93 0.95 0.84 2/65 10419
/proc/meminfo: memFree=1027752/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=12.7
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 640 0 0 0 1270 0 0 0 25 0 1 0 202703433 186327040 623 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134581682 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 623 76 158 0 45330 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 181960

[startup+25.6057 s]
/proc/loadavg: 0.95 0.96 0.84 2/65 10419
/proc/meminfo: memFree=1027752/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=25.59
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 640 0 0 0 2559 0 0 0 25 0 1 0 202703433 186327040 623 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134571501 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 623 76 158 0 45330 0
Current children cumulated CPU time (s) 25.59
Current children cumulated vsize (KiB) 181960

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

[startup+25.8097 s]
/proc/loadavg: 0.95 0.96 0.84 2/65 10419
/proc/meminfo: memFree=1027752/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=25.8
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 640 0 0 0 2580 0 0 0 25 0 1 0 202703433 186327040 623 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134564092 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 623 76 158 0 45330 0
Current children cumulated CPU time (s) 25.8
Current children cumulated vsize (KiB) 181960

[startup+26.2217 s]
/proc/loadavg: 0.95 0.96 0.84 2/65 10419
/proc/meminfo: memFree=1027752/2055920 swapFree=4183260/4192956
[pid=10418] ppid=10416 vsize=181960 CPUtime=26.21
/proc/10418/stat : 10418 (kcnfs-2006) R 10416 10418 9853 0 -1 4194304 640 0 0 0 2621 0 0 0 25 0 1 0 202703433 186327040 623 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134572267 0 0 4096 0 0 0 0 17 1 0 0
/proc/10418/statm: 45490 623 76 158 0 45330 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 181960

Child status: 20
Real time (s): 26.3036
CPU time (s): 26.295
CPU user time (s): 26.294
CPU system time (s): 0.000999
CPU usage (%): 99.9671
Max. virtual memory (cumulated for all children) (KiB): 181960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.294
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 650
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= 17

runsolver used 0.021996 second user time and 0.056991 second system time

The end

Launcher Data (download as text)

Begin job on node58 on Sun Feb 18 19:37:48 UTC 2007

IDJOB= 296807
IDBENCH= 19946
IDSOLVER= 113
FILE ID= node58/296807-1171827467

PBS_JOBID= 3839701

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v45/unif-k7-r89-v45-c4005-S1311675672-04.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/296807-1171827467/kcnfs-2006 /tmp/evaluation/296807-1171827467/instance-296807-1171827467.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-296807-1171827467 -o ROOT/results/node58/solver-296807-1171827467 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/296807-1171827467/kcnfs-2006 /tmp/evaluation/296807-1171827467/instance-296807-1171827467.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  27cb152f3204cf614353bf8294798214

RANDOM SEED= 266986906

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.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:       1030856 kB
Buffers:         52256 kB
Cached:         862192 kB
SwapCached:       4096 kB
Active:         594968 kB
Inactive:       329484 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1030856 kB
SwapTotal:     4192956 kB
SwapFree:      4183260 kB
Dirty:            3244 kB
Writeback:           0 kB
Mapped:          15460 kB
Slab:            86780 kB
Committed_AS:   485268 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= 66561 MiB

End job on node58 on Sun Feb 18 19:38:14 UTC 2007