Trace number 299997

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
ranov 2007-02-08SAT 0.109982 0.111597

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S1561551265-12.SAT.shuffled.cnf
MD5SUMc6a09cb4dcbc2624dfe4aaec1f040fa6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.07	c +------------------------------+
0.00/0.07	c | R+AdaptNovelty+, version 1.5 |
0.00/0.07	c +------------------------------+
0.00/0.07	c ranov -h for help
0.00/0.07	c 
0.00/0.07	c Problem instance: numAtoms = 400, numClauses = 1781, numLiterals = 5343
0.00/0.07	c General parameters: seed=686771889, cutoff=100000, targetCost = 0, print solution: yes
0.00/0.07	c R+AdaptNovelty+ parameters: noise = 0, walkprob = 1
0.00/0.07	c tries = 1
0.00/0.07	c 
0.00/0.10	s SATISFIABLE
0.00/0.10	v -1
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0.00/0.10	v -400
0.00/0.10	v 0
0.00/0.10	c Done in 0.020000 seconds

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/node70/watcher-299997-1171880622 -o ROOT/results/node70/solver-299997-1171880622 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299997-1171880622/ranov /tmp/evaluation/299997-1171880622/instance-299997-1171880622.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: 0.94 0.97 0.99 3/64 20628
/proc/meminfo: memFree=422784/2055920 swapFree=4183276/4192956
[pid=20628] ppid=20626 vsize=319884 CPUtime=0
/proc/20628/stat : 20628 (ranov) R 20626 20628 20389 0 -1 4194304 856 0 0 0 0 0 0 0 18 0 1 0 170862916 327561216 842 18446744073709551615 134512640 134914624 4294956720 18446744073709551615 134528292 0 0 4096 0 0 0 0 17 1 0 0
/proc/20628/statm: 79971 849 30 98 0 79870 0

[startup+0.106903 s]
/proc/loadavg: 0.94 0.97 0.99 3/64 20628
/proc/meminfo: memFree=422784/2055920 swapFree=4183276/4192956
[pid=20628] ppid=20626 vsize=0 CPUtime=0.09
/proc/20628/stat : 20628 (ranov) R 20626 20628 20389 0 -1 4194308 11891 0 0 0 4 5 0 0 18 0 1 0 170862916 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/20628/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 0

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

[startup+0.106903 s]
/proc/loadavg: 0.94 0.97 0.99 3/64 20628
/proc/meminfo: memFree=422784/2055920 swapFree=4183276/4192956
[pid=20628] ppid=20626 vsize=0 CPUtime=0.09
/proc/20628/stat : 20628 (ranov) R 20626 20628 20389 0 -1 4194308 11891 0 0 0 4 5 0 0 18 0 1 0 170862916 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/20628/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 0.111597
CPU time (s): 0.109982
CPU user time (s): 0.048992
CPU system time (s): 0.06099
CPU usage (%): 98.5528
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.048992
system time used= 0.06099
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11891
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= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node70 on Mon Feb 19 10:23:42 UTC 2007

IDJOB= 299997
IDBENCH= 20024
IDSOLVER= 105
FILE ID= node70/299997-1171880622

PBS_JOBID= 3839788

Free space on /tmp= 66563 MiB

SOLVER NAME= ranov 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S1561551265-12.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299997-1171880622/ranov /tmp/evaluation/299997-1171880622/instance-299997-1171880622.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-299997-1171880622 -o ROOT/results/node70/solver-299997-1171880622 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299997-1171880622/ranov /tmp/evaluation/299997-1171880622/instance-299997-1171880622.cnf            

META MD5SUM SOLVER= f62d3053d967228316972e47f5f50e74
MD5SUM BENCH=  c6a09cb4dcbc2624dfe4aaec1f040fa6

RANDOM SEED= 587081668

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node70.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		: 3000.261
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		: 3000.261
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:        423192 kB
Buffers:         50756 kB
Cached:        1457436 kB
SwapCached:       4060 kB
Active:         831332 kB
Inactive:       686784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        423192 kB
SwapTotal:     4192956 kB
SwapFree:      4183276 kB
Dirty:             936 kB
Writeback:           0 kB
Mapped:          15276 kB
Slab:           100716 kB
Committed_AS:   248324 kB
PageTables:       1396 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= 66563 MiB

End job on node70 on Mon Feb 19 10:23:42 UTC 2007