Trace number 296521

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 2004SAT 3.79142 3.79387

General information on the benchmark

Namerandom/OnTreshold/7SAT/v45/
unif-k7-r89-v45-c4005-S1437321789-17.SAT.shuffled.cnf
MD5SUM77bdf27dae0f4a53dc64394c48246636
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.112981
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	
0.00/0.02	c Computed by /tmp/evaluation/296521-1171824829/kcnfs-2004   V. 03/02/12
0.00/0.02	c Input file : '/tmp/evaluation/296521-1171824829/instance-296521-1171824829.cnf'
3.78/3.79	c [45 variables, 4005 clauses, ratio 89.00, mean occ 311, 7-SAT]
3.78/3.79	s SATISFIABLE
3.78/3.79	v   -39   -33    -1    17   -15
3.78/3.79	v    26   -27    12    37    13
3.78/3.79	v    16   -41   -34    22   -30
3.78/3.79	v   -18    45    21    20    -8
3.78/3.79	v    14   -42    43   -24    -5
3.78/3.79	v   -36   -23    -3   -29    11
3.78/3.79	v     9   -19    44    -4     6
3.78/3.79	v     2   -28   -25   -38   -40
3.78/3.79	v    10   -32   -35     7    31
3.78/3.79	v     0
3.78/3.79	c Computation time    : 3.770 seconds
3.78/3.79	c Execution time      : 3.780 seconds
3.78/3.79	c Size of search tree : 12714 nodes
3.78/3.79

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/node60/watcher-296521-1171824829 -o ROOT/results/node60/solver-296521-1171824829 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/296521-1171824829/kcnfs-2004 /tmp/evaluation/296521-1171824829/instance-296521-1171824829.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
Using a pseudo terminal to collect output from the solver
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 17051
/proc/meminfo: memFree=785384/2055920 swapFree=4183416/4192956
[pid=17051] ppid=17049 vsize=16020 CPUtime=0
/proc/17051/stat : 17051 (kcnfs-2004) R 17049 17051 16830 0 -1 0 94 0 0 0 0 0 0 0 18 0 1 0 202439737 16404480 74 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 1 0 0
/proc/17051/statm: 4005 74 38 107 0 3894 0

[startup+0.107161 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 17051
/proc/meminfo: memFree=785384/2055920 swapFree=4183416/4192956
[pid=17051] ppid=17049 vsize=18528 CPUtime=0.09
/proc/17051/stat : 17051 (kcnfs-2004) R 17049 17051 16830 0 -1 0 860 0 0 0 9 0 0 0 18 0 1 0 202439737 18972672 839 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134533130 0 0 4096 0 0 0 0 17 1 0 0
/proc/17051/statm: 4632 839 60 107 0 4521 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 18528

[startup+0.515227 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 17051
/proc/meminfo: memFree=785384/2055920 swapFree=4183416/4192956
[pid=17051] ppid=17049 vsize=18528 CPUtime=0.5
/proc/17051/stat : 17051 (kcnfs-2004) R 17049 17051 16830 0 -1 0 862 0 0 0 50 0 0 0 21 0 1 0 202439737 18972672 841 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134530295 0 0 4096 0 0 0 0 17 1 0 0
/proc/17051/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 18528

[startup+1.33537 s]
/proc/loadavg: 0.91 0.98 0.99 2/65 17052
/proc/meminfo: memFree=782176/2055920 swapFree=4183416/4192956
[pid=17051] ppid=17049 vsize=18528 CPUtime=1.32
/proc/17051/stat : 17051 (kcnfs-2004) R 17049 17051 16830 0 -1 0 862 0 0 0 132 0 0 0 25 0 1 0 202439737 18972672 841 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134540209 0 0 4096 0 0 0 0 17 1 0 0
/proc/17051/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 18528

[startup+2.97167 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 17052
/proc/meminfo: memFree=781984/2055920 swapFree=4183416/4192956
[pid=17051] ppid=17049 vsize=18528 CPUtime=2.96
/proc/17051/stat : 17051 (kcnfs-2004) R 17049 17051 16830 0 -1 0 862 0 0 0 296 0 0 0 25 0 1 0 202439737 18972672 841 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134572474 0 0 4096 0 0 0 0 17 1 0 0
/proc/17051/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 18528

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

[startup+3.27772 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 17052
/proc/meminfo: memFree=781984/2055920 swapFree=4183416/4192956
[pid=17051] ppid=17049 vsize=18528 CPUtime=3.26
/proc/17051/stat : 17051 (kcnfs-2004) R 17049 17051 16830 0 -1 0 862 0 0 0 326 0 0 0 25 0 1 0 202439737 18972672 841 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134540054 0 0 4096 0 0 0 0 17 1 0 0
/proc/17051/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 3.26
Current children cumulated vsize (KiB) 18528

[startup+3.68979 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 17052
/proc/meminfo: memFree=781984/2055920 swapFree=4183416/4192956
[pid=17051] ppid=17049 vsize=18528 CPUtime=3.68
/proc/17051/stat : 17051 (kcnfs-2004) R 17049 17051 16830 0 -1 0 862 0 0 0 368 0 0 0 25 0 1 0 202439737 18972672 841 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528718 0 0 4096 0 0 0 0 17 1 0 0
/proc/17051/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 3.68
Current children cumulated vsize (KiB) 18528

[startup+3.79181 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 17052
/proc/meminfo: memFree=781984/2055920 swapFree=4183416/4192956
[pid=17051] ppid=17049 vsize=18528 CPUtime=3.78
/proc/17051/stat : 17051 (kcnfs-2004) R 17049 17051 16830 0 -1 0 862 0 0 0 378 0 0 0 25 0 1 0 202439737 18972672 841 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528506 0 0 4096 0 0 0 0 17 1 0 0
/proc/17051/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 3.78
Current children cumulated vsize (KiB) 18528

Child status: 10
Real time (s): 3.79387
CPU time (s): 3.79142
CPU user time (s): 3.78342
CPU system time (s): 0.007998
CPU usage (%): 99.9355
Max. virtual memory (cumulated for all children) (KiB): 18528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.78342
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 862
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= 5

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Sun Feb 18 18:53:49 UTC 2007

IDJOB= 296521
IDBENCH= 19939
IDSOLVER= 114
FILE ID= node60/296521-1171824829

PBS_JOBID= 3839694

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v45/unif-k7-r89-v45-c4005-S1437321789-17.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/296521-1171824829/kcnfs-2004 /tmp/evaluation/296521-1171824829/instance-296521-1171824829.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-296521-1171824829 -o ROOT/results/node60/solver-296521-1171824829 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/296521-1171824829/kcnfs-2004 /tmp/evaluation/296521-1171824829/instance-296521-1171824829.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  77bdf27dae0f4a53dc64394c48246636

RANDOM SEED= 935717677

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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		: 3000.283
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		: 3000.283
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:        785856 kB
Buffers:         48428 kB
Cached:        1100332 kB
SwapCached:       3908 kB
Active:         789788 kB
Inactive:       368904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        785856 kB
SwapTotal:     4192956 kB
SwapFree:      4183416 kB
Dirty:            3404 kB
Writeback:           0 kB
Mapped:          15340 kB
Slab:            97372 kB
Committed_AS:   682988 kB
PageTables:       1464 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 node60 on Sun Feb 18 18:53:53 UTC 2007