Trace number 316428

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 7.62984 7.63559

General information on the benchmark

Namecrafted/spence/
medium/s65-100.cnf
MD5SUMc783ce32e47f2d2dd661851cca52c3a7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.61445
Satisfiable
(Un)Satisfiability was proved
Number of variables65
Number of clauses140
Sum of the clauses size420
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3140
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/316428-1172668959/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/316428-1172668959/instance-316428-1172668959.cnf'
0.00/0.00	c [#vars: 65, #clauses: 140 -> 140 clauses (pre-processing), 3-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 140)
7.59/7.63	c BSH-propagate until depth 1 (fix point: 6 updates) 
7.59/7.63	s UNSATISFIABLE
7.59/7.63	c Computation time     : 7.620 seconds
7.59/7.63	c Execution time       : 7.620 seconds
7.59/7.63	c Size of search tree  : 158890 nodes
7.59/7.63	c average speed        : 20851.706 nodes/sec.
7.59/7.63

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node44/watcher-316428-1172668959 -o ROOT/results/node44/solver-316428-1172668959 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316428-1172668959/kcnfs-2006 /tmp/evaluation/316428-1172668959/instance-316428-1172668959.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: 0.89 0.94 0.94 3/64 13625
/proc/meminfo: memFree=1763512/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=0
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 151 0 0 0 0 0 0 0 18 0 1 0 286852078 186548224 135 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134675111 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 135 71 158 0 45384 0

[startup+0.051035 s]
/proc/loadavg: 0.89 0.94 0.94 3/64 13625
/proc/meminfo: memFree=1763512/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=0.04
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 4 0 0 0 18 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134581697 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 182176

[startup+0.101043 s]
/proc/loadavg: 0.89 0.94 0.94 3/64 13625
/proc/meminfo: memFree=1763512/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=0.09
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 9 0 0 0 18 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134564318 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 182176

[startup+0.30108 s]
/proc/loadavg: 0.89 0.94 0.94 3/64 13625
/proc/meminfo: memFree=1763512/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=0.29
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 29 0 0 0 19 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134564654 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 182176

[startup+0.701152 s]
/proc/loadavg: 0.89 0.94 0.94 3/64 13625
/proc/meminfo: memFree=1763512/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=0.69
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 69 0 0 0 22 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134631271 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 182176

[startup+1.5013 s]
/proc/loadavg: 0.89 0.94 0.94 2/65 13626
/proc/meminfo: memFree=1763120/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=1.49
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 149 0 0 0 25 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134675392 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 182176

[startup+3.10159 s]
/proc/loadavg: 0.89 0.94 0.94 2/65 13626
/proc/meminfo: memFree=1762992/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=3.09
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 309 0 0 0 25 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134559588 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 182176

[startup+6.30118 s]
/proc/loadavg: 0.90 0.94 0.94 2/65 13626
/proc/meminfo: memFree=1762864/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=6.29
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 629 0 0 0 25 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134564270 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 182176

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

[startup+7.10132 s]
/proc/loadavg: 0.90 0.94 0.94 2/65 13626
/proc/meminfo: memFree=1762864/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=7.09
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 709 0 0 0 25 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134632247 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 182176

[startup+7.5014 s]
/proc/loadavg: 0.90 0.94 0.94 2/65 13626
/proc/meminfo: memFree=1762864/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=7.49
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 749 0 0 0 25 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134631195 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 182176

[startup+7.60141 s]
/proc/loadavg: 0.90 0.94 0.94 2/65 13626
/proc/meminfo: memFree=1762864/2055920 swapFree=4183336/4192956
[pid=13625] ppid=13623 vsize=182176 CPUtime=7.59
/proc/13625/stat : 13625 (kcnfs-2006) R 13623 13625 12420 0 -1 4194304 152 0 0 0 759 0 0 0 25 0 1 0 286852078 186548224 136 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134564840 0 0 4096 0 0 0 0 17 1 0 0
/proc/13625/statm: 45544 136 72 158 0 45384 0
Current children cumulated CPU time (s) 7.59
Current children cumulated vsize (KiB) 182176

Child status: 20
Real time (s): 7.63559
CPU time (s): 7.62984
CPU user time (s): 7.62684
CPU system time (s): 0.002999
CPU usage (%): 99.9247
Max. virtual memory (cumulated for all children) (KiB): 182176

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.62684
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 162
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= 18

runsolver used 0.007998 second user time and 0.023996 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Wed Feb 28 13:22:39 UTC 2007

IDJOB= 316428
IDBENCH= 20441
IDSOLVER= 113
FILE ID= node44/316428-1172668959

PBS_JOBID= 3981207

Free space on /tmp= 66553 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s65-100.cnf
COMMAND LINE= /tmp/evaluation/316428-1172668959/kcnfs-2006 /tmp/evaluation/316428-1172668959/instance-316428-1172668959.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-316428-1172668959 -o ROOT/results/node44/solver-316428-1172668959 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316428-1172668959/kcnfs-2006 /tmp/evaluation/316428-1172668959/instance-316428-1172668959.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  c783ce32e47f2d2dd661851cca52c3a7

RANDOM SEED= 693190942

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.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:       1763920 kB
Buffers:         10484 kB
Cached:         232528 kB
SwapCached:       3352 kB
Active:          35656 kB
Inactive:       216792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1763920 kB
SwapTotal:     4192956 kB
SwapFree:      4183336 kB
Dirty:            3284 kB
Writeback:           0 kB
Mapped:          15420 kB
Slab:            25600 kB
Committed_AS:   628860 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= 66553 MiB

End job on node44 on Wed Feb 28 13:22:47 UTC 2007