Trace number 298734

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 21.3917 21.4011

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S1154156114-09.UNSAT.shuffled.cnf
MD5SUMefb9901bf89fd570f6c562e1222df820
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark20.6749
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1533
Sum of the clauses size4599
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31533
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/298734-1171859720/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/298734-1171859720/instance-298734-1171859720.cnf'
0.00/0.00	c [#vars: 360, #clauses: 1533 -> 1638 clauses (pre-processing), 3-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 1638)
21.29/21.39	c BSH-propagate until depth 1 (fix point: 6 updates) 
21.29/21.39	s UNSATISFIABLE
21.29/21.39	c Computation time     : 21.380 seconds
21.29/21.39	c Execution time       : 21.380 seconds
21.29/21.39	c Size of search tree  : 41573 nodes
21.29/21.39	c average speed        : 1944.481 nodes/sec.
21.29/21.39

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/node35/watcher-298734-1171859720 -o ROOT/results/node35/solver-298734-1171859720 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298734-1171859720/kcnfs-2006 /tmp/evaluation/298734-1171859720/instance-298734-1171859720.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: 0.91 0.97 0.99 3/64 19090
/proc/meminfo: memFree=637600/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=181840 CPUtime=0
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 179735731 186204160 116 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134718318 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45460 116 49 158 0 45300 0

[startup+0.10746 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 19090
/proc/meminfo: memFree=637600/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=0.1
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 10 0 0 0 18 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134675127 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 182308

[startup+0.515539 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 19090
/proc/meminfo: memFree=637600/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=0.51
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 51 0 0 0 21 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134625490 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 182308

[startup+1.3357 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636696/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=1.33
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 133 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134569550 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 182308

[startup+2.97302 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636568/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=2.96
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 296 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134675571 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 182308

[startup+6.24967 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636504/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=6.24
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 624 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134675247 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 182308

[startup+12.7049 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636448/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=12.69
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 1269 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134559220 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 182308

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

[startup+13.113 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636448/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=13.1
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 1310 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134587511 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 13.1
Current children cumulated vsize (KiB) 182308

[startup+16.3897 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636448/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=16.37
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 1637 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134675088 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 16.37
Current children cumulated vsize (KiB) 182308

[startup+19.6693 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636448/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=19.65
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 1965 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134572311 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 19.65
Current children cumulated vsize (KiB) 182308

[startup+20.4895 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636448/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=20.47
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 2047 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134582246 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 20.47
Current children cumulated vsize (KiB) 182308

[startup+20.8976 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636448/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=20.88
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 2088 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134675114 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 20.88
Current children cumulated vsize (KiB) 182308

[startup+21.3056 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 19091
/proc/meminfo: memFree=636448/2055920 swapFree=4183700/4192956
[pid=19090] ppid=19088 vsize=182308 CPUtime=21.29
/proc/19090/stat : 19090 (kcnfs-2006) R 19088 19090 14938 0 -1 4194304 289 0 0 0 2129 0 0 0 25 0 1 0 179735731 186683392 273 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134561371 0 0 4096 0 0 0 0 17 1 0 0
/proc/19090/statm: 45577 273 75 158 0 45417 0
Current children cumulated CPU time (s) 21.29
Current children cumulated vsize (KiB) 182308

Child status: 20
Real time (s): 21.4011
CPU time (s): 21.3917
CPU user time (s): 21.3847
CPU system time (s): 0.006998
CPU usage (%): 99.9564
Max. virtual memory (cumulated for all children) (KiB): 182308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.3847
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 299
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= 33

runsolver used 0.018997 second user time and 0.049992 second system time

The end

Launcher Data (download as text)

Begin job on node35 on Mon Feb 19 04:35:20 UTC 2007

IDJOB= 298734
IDBENCH= 19993
IDSOLVER= 113
FILE ID= node35/298734-1171859720

PBS_JOBID= 3839658

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S1154156114-09.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298734-1171859720/kcnfs-2006 /tmp/evaluation/298734-1171859720/instance-298734-1171859720.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-298734-1171859720 -o ROOT/results/node35/solver-298734-1171859720 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298734-1171859720/kcnfs-2006 /tmp/evaluation/298734-1171859720/instance-298734-1171859720.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  efb9901bf89fd570f6c562e1222df820

RANDOM SEED= 180313436

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node35.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		: 3000.263
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		: 3000.263
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:        638072 kB
Buffers:         44356 kB
Cached:        1267276 kB
SwapCached:       3828 kB
Active:         849052 kB
Inactive:       473528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        638072 kB
SwapTotal:     4192956 kB
SwapFree:      4183700 kB
Dirty:            3164 kB
Writeback:           0 kB
Mapped:          16136 kB
Slab:            81308 kB
Committed_AS:   703140 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= 66561 MiB

End job on node35 on Mon Feb 19 04:35:42 UTC 2007