Trace number 426514

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 2004UNSAT 41.7946 41.7938

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S1164089919-15.UNSAT.shuffled.cnf
MD5SUM047e1e0ba93ab34b042ab0c912e1065d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark35.9155
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses1704
Sum of the clauses size8520
Maximum clause length5
Minimum clause length5
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 51704
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/426514-1177826268/kcnfs-2004   V. 03/02/12
0.00/0.00	c Input file : '/tmp/evaluation/426514-1177826268/instance-426514-1177826268.cnf'
41.69/41.79	c [80 variables, 1704 clauses, ratio 21.30, mean occ 53, 5-SAT]
41.69/41.79	s UNSATISFIABLE
41.69/41.79	c Computation time    : 41.790 seconds
41.69/41.79	c Execution time      : 41.790 seconds
41.69/41.79	c Size of search tree : 162352 nodes
41.69/41.79

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node16/watcher-426514-1177826268 -o ROOT/results/node16/solver-426514-1177826268 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426514-1177826268/kcnfs-2004 /tmp/evaluation/426514-1177826268/instance-426514-1177826268.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.78 0.95 0.98 3/77 8089
/proc/meminfo: memFree=1486200/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16148 CPUtime=0
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 129 0 0 0 0 0 0 0 18 0 1 0 230544439 16535552 110 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4043 115 38 107 0 3932 0

[startup+0.046169 s]
/proc/loadavg: 0.78 0.95 0.98 3/77 8089
/proc/meminfo: memFree=1486200/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=0.04
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 374 0 0 0 4 0 0 0 18 0 1 0 230544439 17149952 354 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134579845 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 354 60 107 0 4076 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 16748

[startup+0.101157 s]
/proc/loadavg: 0.78 0.95 0.98 3/77 8089
/proc/meminfo: memFree=1486200/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=0.09
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 374 0 0 0 9 0 0 0 18 0 1 0 230544439 17149952 354 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530612 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 354 60 107 0 4076 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16748

[startup+0.301115 s]
/proc/loadavg: 0.78 0.95 0.98 3/77 8089
/proc/meminfo: memFree=1486200/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=0.29
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 374 0 0 0 29 0 0 0 19 0 1 0 230544439 17149952 354 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134538239 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 354 60 107 0 4076 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16748

[startup+0.70103 s]
/proc/loadavg: 0.78 0.95 0.98 3/77 8089
/proc/meminfo: memFree=1486200/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=0.69
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 374 0 0 0 69 0 0 0 23 0 1 0 230544439 17149952 354 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134539649 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 354 60 107 0 4076 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16748

[startup+1.50186 s]
/proc/loadavg: 0.78 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484976/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=1.49
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 374 0 0 0 149 0 0 0 25 0 1 0 230544439 17149952 354 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530315 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 354 60 107 0 4076 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16748

[startup+3.10253 s]
/proc/loadavg: 0.78 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484848/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=3.09
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 309 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528282 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16748

[startup+6.30186 s]
/proc/loadavg: 0.80 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484720/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=6.29
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 629 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530806 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 16748

[startup+12.7015 s]
/proc/loadavg: 0.81 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484720/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=12.69
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 1269 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134557848 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 16748

[startup+25.5018 s]
/proc/loadavg: 0.85 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484784/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=25.49
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 2549 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528712 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 16748

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

[startup+31.9055 s]
/proc/loadavg: 0.86 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484784/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=31.9
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 3190 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134533407 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 31.9
Current children cumulated vsize (KiB) 16748

[startup+38.3011 s]
/proc/loadavg: 0.88 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484784/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=38.29
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 3829 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528494 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 38.29
Current children cumulated vsize (KiB) 16748

[startup+39.9018 s]
/proc/loadavg: 0.88 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484784/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=39.89
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 3989 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134579628 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (KiB) 16748

[startup+40.7056 s]
/proc/loadavg: 0.89 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484784/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=40.69
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 4069 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530719 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 40.69
Current children cumulated vsize (KiB) 16748

[startup+41.5015 s]
/proc/loadavg: 0.89 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484784/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=41.49
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 4149 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530783 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 41.49
Current children cumulated vsize (KiB) 16748

[startup+41.7014 s]
/proc/loadavg: 0.89 0.95 0.98 2/78 8090
/proc/meminfo: memFree=1484784/2055920 swapFree=4148656/4192956
[pid=8089] ppid=8087 vsize=16748 CPUtime=41.69
/proc/8089/stat : 8089 (kcnfs-2004) R 8087 8089 8035 0 -1 0 375 0 0 0 4169 0 0 0 25 0 1 0 230544439 17149952 355 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134579628 0 0 4096 0 0 0 0 17 1 0 0
/proc/8089/statm: 4187 355 60 107 0 4076 0
Current children cumulated CPU time (s) 41.69
Current children cumulated vsize (KiB) 16748

Child status: 20
Real time (s): 41.7938
CPU time (s): 41.7946
CPU user time (s): 41.7866
CPU system time (s): 0.007998
CPU usage (%): 100.002
Max. virtual memory (cumulated for all children) (KiB): 16748

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 41.7866
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= 375
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= 7
involuntary context switches= 857

runsolver used 0.035994 second user time and 0.093985 second system time

The end

Launcher Data (download as text)

Begin job on node16 on Sun Apr 29 05:57:48 UTC 2007

IDJOB= 426514
IDBENCH= 19826
IDSOLVER= 194
FILE ID= node16/426514-1177826268

PBS_JOBID= 4718270

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S1164089919-15.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426514-1177826268/kcnfs-2004 /tmp/evaluation/426514-1177826268/instance-426514-1177826268.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-426514-1177826268 -o ROOT/results/node16/solver-426514-1177826268 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426514-1177826268/kcnfs-2004 /tmp/evaluation/426514-1177826268/instance-426514-1177826268.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  047e1e0ba93ab34b042ab0c912e1065d

RANDOM SEED= 280970971

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node16.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		: 3000.232
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		: 3000.232
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:       1486608 kB
Buffers:         49468 kB
Cached:         426548 kB
SwapCached:      12428 kB
Active:         257308 kB
Inactive:       242124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1486608 kB
SwapTotal:     4192956 kB
SwapFree:      4148656 kB
Dirty:            3368 kB
Writeback:           0 kB
Mapped:          30276 kB
Slab:            55348 kB
Committed_AS:  7612092 kB
PageTables:       1836 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 node16 on Sun Apr 29 05:58:30 UTC 2007