Trace number 313028

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 2006? (exit code) 2.34164 2.34246

General information on the benchmark

Nameindustrial/anbulagan/
medium-sat/total-10-19-s.cnf
MD5SUMbea511c9a03a4804efe79689b911729e
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark27.2349
Satisfiable
(Un)Satisfiability was proved
Number of variables331631
Number of clauses1586193
Sum of the clauses size3688066
Maximum clause length10
Minimum clause length1
Number of clauses of size 127559
Number of clauses of size 21201215
Number of clauses of size 3295479
Number of clauses of size 46880
Number of clauses of size 527520
Number of clauses of size over 527540

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/313028-1176872407/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
2.30/2.32	c this formula cannot been solved by kcnfs
2.30/2.32

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node9/watcher-313028-1176872407 -o ROOT/results/node9/solver-313028-1176872407 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/313028-1176872407/kcnfs-2006 /tmp/evaluation/313028-1176872407/instance-313028-1176872407.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: 1.00 1.00 0.96 2/77 11712
/proc/meminfo: memFree=1856496/2055920 swapFree=4146996/4192956
[pid=11712] ppid=11710 vsize=180908 CPUtime=0
/proc/11712/stat : 11712 (kcnfs-2006) R 11710 11712 10899 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 163278254 185249792 109 18446744073709551615 134512640 135163436 4294956672 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/11712/statm: 45227 109 47 158 0 45067 0

[startup+0.099374 s]
/proc/loadavg: 1.00 1.00 0.96 2/77 11712
/proc/meminfo: memFree=1856496/2055920 swapFree=4146996/4192956
[pid=11712] ppid=11710 vsize=186188 CPUtime=0.09
/proc/11712/stat : 11712 (kcnfs-2006) R 11710 11712 10899 0 -1 4194304 1453 0 0 0 8 1 0 0 18 0 1 0 163278254 190656512 1438 18446744073709551615 134512640 135163436 4294956672 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/11712/statm: 46547 1438 47 158 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186188

[startup+0.102373 s]
/proc/loadavg: 1.00 1.00 0.96 2/77 11712
/proc/meminfo: memFree=1856496/2055920 swapFree=4146996/4192956
[pid=11712] ppid=11710 vsize=186452 CPUtime=0.1
/proc/11712/stat : 11712 (kcnfs-2006) R 11710 11712 10899 0 -1 4194304 1495 0 0 0 9 1 0 0 18 0 1 0 163278254 190926848 1480 18446744073709551615 134512640 135163436 4294956672 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/11712/statm: 46613 1480 47 158 0 46453 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 186452

[startup+0.301395 s]
/proc/loadavg: 1.00 1.00 0.96 2/77 11712
/proc/meminfo: memFree=1856496/2055920 swapFree=4146996/4192956
[pid=11712] ppid=11710 vsize=197144 CPUtime=0.29
/proc/11712/stat : 11712 (kcnfs-2006) R 11710 11712 10899 0 -1 4194304 4177 0 0 0 27 2 0 0 20 0 1 0 163278254 201875456 4162 18446744073709551615 134512640 135163436 4294956672 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/11712/statm: 49286 4162 47 158 0 49126 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197144

[startup+0.702441 s]
/proc/loadavg: 1.00 1.00 0.96 2/77 11712
/proc/meminfo: memFree=1856496/2055920 swapFree=4146996/4192956
[pid=11712] ppid=11710 vsize=218396 CPUtime=0.69
/proc/11712/stat : 11712 (kcnfs-2006) R 11710 11712 10899 0 -1 4194304 9487 0 0 0 64 5 0 0 23 0 1 0 163278254 223637504 9472 18446744073709551615 134512640 135163436 4294956672 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/11712/statm: 54599 9472 47 158 0 54439 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218396

[startup+1.50153 s]
/proc/loadavg: 1.00 1.00 0.96 2/78 11713
/proc/meminfo: memFree=1802856/2055920 swapFree=4146996/4192956
[pid=11712] ppid=11710 vsize=261032 CPUtime=1.49
/proc/11712/stat : 11712 (kcnfs-2006) R 11710 11712 10899 0 -1 4194304 20138 0 0 0 139 10 0 0 25 0 1 0 163278254 267296768 20123 18446744073709551615 134512640 135163436 4294956672 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/11712/statm: 65258 20123 47 158 0 65098 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261032

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

[startup+1.90158 s]
/proc/loadavg: 1.00 1.00 0.96 2/78 11713
/proc/meminfo: memFree=1802856/2055920 swapFree=4146996/4192956
[pid=11712] ppid=11710 vsize=282284 CPUtime=1.89
/proc/11712/stat : 11712 (kcnfs-2006) R 11710 11712 10899 0 -1 4194304 25463 0 0 0 176 13 0 0 25 0 1 0 163278254 289058816 25448 18446744073709551615 134512640 135163436 4294956672 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/11712/statm: 70571 25448 47 158 0 70411 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 282284

[startup+2.30162 s]
/proc/loadavg: 1.00 1.00 0.96 2/78 11713
/proc/meminfo: memFree=1744360/2055920 swapFree=4146996/4192956
[pid=11712] ppid=11710 vsize=302612 CPUtime=2.3
/proc/11712/stat : 11712 (kcnfs-2006) R 11710 11712 10899 0 -1 4194304 30543 0 0 0 215 15 0 0 25 0 1 0 163278254 309874688 30528 18446744073709551615 134512640 135163436 4294956672 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/11712/statm: 75653 30528 47 158 0 75493 0
Current children cumulated CPU time (s) 2.3
Current children cumulated vsize (KiB) 302612

Child status: 1
Real time (s): 2.34246
CPU time (s): 2.34164
CPU user time (s): 2.16667
CPU system time (s): 0.174973
CPU usage (%): 99.9652
Max. virtual memory (cumulated for all children) (KiB): 302612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.16667
system time used= 0.174973
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 30827
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= 48

runsolver used 0.000999 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node9 on Wed Apr 18 05:00:07 UTC 2007

IDJOB= 313028
IDBENCH= 20356
IDSOLVER= 113
FILE ID= node9/313028-1176872407

PBS_JOBID= 4590292

Free space on /tmp= 66439 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-sat/total-10-19-s.cnf
COMMAND LINE= /tmp/evaluation/313028-1176872407/kcnfs-2006 /tmp/evaluation/313028-1176872407/instance-313028-1176872407.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-313028-1176872407 -o ROOT/results/node9/solver-313028-1176872407 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/313028-1176872407/kcnfs-2006 /tmp/evaluation/313028-1176872407/instance-313028-1176872407.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  bea511c9a03a4804efe79689b911729e

RANDOM SEED= 897823189

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node9.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		: 3000.221
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		: 3000.221
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:       1856968 kB
Buffers:          5724 kB
Cached:         123088 kB
SwapCached:      14056 kB
Active:          94376 kB
Inactive:        63648 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1856968 kB
SwapTotal:     4192956 kB
SwapFree:      4146996 kB
Dirty:           32540 kB
Writeback:           0 kB
Mapped:          30272 kB
Slab:            26480 kB
Committed_AS:  5969752 kB
PageTables:       1784 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= 66439 MiB

End job on node9 on Wed Apr 18 05:00:09 UTC 2007