Trace number 1723714

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
kw 2009-03-20UNSAT 2.89356 2.89794

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.883865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c kw (KillerWhale) version 0.6
0.00/0.00	c Copyright 2007-2009 Johan Alfredsson, Oepir
0.00/0.00	c johan@oepir.com
2.79/2.89	c 2.56 seconds
2.79/2.89	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1723714-1240688375/watcher-1723714-1240688375 -o /tmp/evaluation-result-1723714-1240688375/solver-1723714-1240688375 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/kw HOME/instance-1723714-1240688375.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 3/64 2498
/proc/meminfo: memFree=1089752/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=4964 CPUtime=0
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 675 0 0 0 0 0 0 0 20 0 1 0 96866401 5083136 659 1992294400 4194304 6412682 548682068832 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 1241 663 208 541 0 691 0

[startup+0.105208 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2498
/proc/meminfo: memFree=1089752/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=17876 CPUtime=0.09
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 3960 0 0 0 8 1 0 0 20 0 1 0 96866401 18305024 3944 1992294400 4194304 6412682 548682068832 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 4469 3944 219 541 0 3919 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 17876

[startup+0.201219 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2498
/proc/meminfo: memFree=1089752/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=19388 CPUtime=0.19
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 4421 0 0 0 17 2 0 0 20 0 1 0 96866401 19853312 4356 1992294400 4194304 6412682 548682068832 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 4847 4356 220 541 0 4297 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 19388

[startup+0.301231 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2498
/proc/meminfo: memFree=1089752/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=20840 CPUtime=0.29
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 4820 0 0 0 27 2 0 0 21 0 1 0 96866401 21340160 4755 1992294400 4194304 6412682 548682068832 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 5210 4755 220 541 0 4660 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 20840

[startup+0.701278 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2498
/proc/meminfo: memFree=1089752/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=30032 CPUtime=0.69
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 7324 0 0 0 62 7 0 0 25 0 1 0 96866401 30752768 7022 1992294400 4194304 6412682 548682068832 18446744073709551615 5554256 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 7508 7022 248 541 0 6958 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 30032

[startup+1.50137 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2499
/proc/meminfo: memFree=1054544/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=37080 CPUtime=1.48
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 9102 0 0 0 135 13 0 0 25 0 1 0 96866401 37969920 8613 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 9270 8613 255 541 0 8720 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 37080

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

[startup+1.60138 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2499
/proc/meminfo: memFree=1054544/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=37080 CPUtime=1.59
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 9106 0 0 0 145 14 0 0 25 0 1 0 96866401 37969920 8617 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 9270 8617 255 541 0 8720 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 37080

[startup+2.40148 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2499
/proc/meminfo: memFree=1053648/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=37228 CPUtime=2.39
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 9174 0 0 0 223 16 0 0 25 0 1 0 96866401 38121472 8685 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 9307 8685 255 541 0 8757 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 37228

[startup+2.80152 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2499
/proc/meminfo: memFree=1053648/2055920 swapFree=4192812/4192956
[pid=2498] ppid=2496 vsize=38196 CPUtime=2.79
/proc/2498/stat : 2498 (kw) R 2496 2498 2132 0 -1 0 9339 0 0 0 263 16 0 0 25 0 1 0 96866401 39112704 8850 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/2498/statm: 9549 8850 255 541 0 8999 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 38196

Child status: 20
Real time (s): 2.89794
CPU time (s): 2.89356
CPU user time (s): 2.72358
CPU system time (s): 0.169974
CPU usage (%): 99.8487
Max. virtual memory (cumulated for all children) (KiB): 38196

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.72358
system time used= 0.169974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9346
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= 11

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node75 at 2009-04-25 21:39:35
IDJOB=1723714
IDBENCH=71734
IDSOLVER=501
FILE ID=node75/1723714-1240688375
PBS_JOBID= 9186683
Free space on /tmp= 66432 MiB

SOLVER NAME= kw 2009-03-20
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/kw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723714-1240688375/watcher-1723714-1240688375 -o /tmp/evaluation-result-1723714-1240688375/solver-1723714-1240688375 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/kw HOME/instance-1723714-1240688375.cnf

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

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=79351916

node75.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1090232 kB
Buffers:         85928 kB
Cached:         786640 kB
SwapCached:        144 kB
Active:         130272 kB
Inactive:       756408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1090232 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3336 kB
Writeback:           0 kB
Mapped:          23696 kB
Slab:            65000 kB
Committed_AS:   228472 kB
PageTables:       1416 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= 66428 MiB
End job on node75 at 2009-04-25 21:39:38