Trace number 320675

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) 4.21036 4.21283

General information on the benchmark

Nameindustrial/narain/
clauses-6.cnf
MD5SUM61486826db531b2bec67f4c4c779f9ff
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark86.1749
Satisfiable
(Un)Satisfiability was proved
Number of variables683995
Number of clauses2623082
Sum of the clauses size6506810
Maximum clause length385
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 21990085
Number of clauses of size 3452561
Number of clauses of size 45943
Number of clauses of size 5154560
Number of clauses of size over 519932

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/320675-1173048963/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
4.09/4.17	c this formula cannot been solved by kcnfs
4.09/4.17

Verifier Data (download as text)

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

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node2/watcher-320675-1173048963 -o ROOT/results/node2/solver-320675-1173048963 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320675-1173048963/kcnfs-2006 /tmp/evaluation/320675-1173048963/instance-320675-1173048963.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: 0.92 0.98 0.99 3/77 10303
/proc/meminfo: memFree=1010552/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=180908 CPUtime=0
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 123 0 0 0 0 0 0 0 18 0 1 0 324851262 185249792 108 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134928558 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 45227 108 47 158 0 45067 0

[startup+0.056556 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 10303
/proc/meminfo: memFree=1010552/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=183680 CPUtime=0.05
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 806 0 0 0 5 0 0 0 18 0 1 0 324851262 188088320 791 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 45920 792 47 158 0 45760 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 183680

[startup+0.101559 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 10303
/proc/meminfo: memFree=1010552/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=185924 CPUtime=0.09
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 1386 0 0 0 9 0 0 0 18 0 1 0 324851262 190386176 1371 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 46481 1372 47 158 0 46321 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 185924

[startup+0.301582 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 10303
/proc/meminfo: memFree=1010552/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=196352 CPUtime=0.29
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 3968 0 0 0 27 2 0 0 19 0 1 0 324851262 201064448 3953 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 49088 3954 47 158 0 48928 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196352

[startup+0.701621 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 10303
/proc/meminfo: memFree=1010552/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=216680 CPUtime=0.69
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 9070 0 0 0 64 5 0 0 23 0 1 0 324851262 221880320 9055 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 54170 9056 47 158 0 54010 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 216680

[startup+1.5017 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 10304
/proc/meminfo: memFree=959088/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=257468 CPUtime=1.49
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 19266 0 0 0 137 12 0 0 25 0 1 0 324851262 263647232 19251 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 64367 19252 47 158 0 64207 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 257468

[startup+3.10187 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 10304
/proc/meminfo: memFree=902704/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=338252 CPUtime=3.09
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 39458 0 0 0 287 22 0 0 25 0 1 0 324851262 346370048 39443 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 84563 39444 47 158 0 84403 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 338252

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

[startup+3.90195 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 10304
/proc/meminfo: memFree=846768/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=378248 CPUtime=3.89
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 49443 0 0 0 361 28 0 0 25 0 1 0 324851262 387325952 49428 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 94562 49429 47 158 0 94402 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 378248

[startup+4.10197 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 10304
/proc/meminfo: memFree=846768/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=388280 CPUtime=4.09
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194304 51954 0 0 0 380 29 0 0 25 0 1 0 324851262 397598720 51939 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 97070 51940 47 158 0 96910 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 388280

[startup+4.20198 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 10304
/proc/meminfo: memFree=846768/2055920 swapFree=4153320/4192956
[pid=10303] ppid=10301 vsize=0 CPUtime=4.19
/proc/10303/stat : 10303 (kcnfs-2006) R 10301 10303 9682 0 -1 4194308 52945 0 0 0 387 32 0 0 25 0 1 0 324851262 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/10303/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 4.19
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 4.21283
CPU time (s): 4.21036
CPU user time (s): 3.87741
CPU system time (s): 0.332949
CPU usage (%): 99.9413
Max. virtual memory (cumulated for all children) (KiB): 388280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.87741
system time used= 0.332949
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 52945
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= 89

runsolver used 0.009998 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Sun Mar  4 22:56:03 UTC 2007

IDJOB= 320675
IDBENCH= 20509
IDSOLVER= 113
FILE ID= node2/320675-1173048963

PBS_JOBID= 4012261

Free space on /tmp= 66459 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/narain/clauses-6.cnf
COMMAND LINE= /tmp/evaluation/320675-1173048963/kcnfs-2006 /tmp/evaluation/320675-1173048963/instance-320675-1173048963.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-320675-1173048963 -o ROOT/results/node2/solver-320675-1173048963 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320675-1173048963/kcnfs-2006 /tmp/evaluation/320675-1173048963/instance-320675-1173048963.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  61486826db531b2bec67f4c4c779f9ff

RANDOM SEED= 579684345

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:       1010960 kB
Buffers:         42284 kB
Cached:         918752 kB
SwapCached:       3068 kB
Active:         410400 kB
Inactive:       574060 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1010960 kB
SwapTotal:     4192956 kB
SwapFree:      4153320 kB
Dirty:           53516 kB
Writeback:           0 kB
Mapped:          30632 kB
Slab:            45952 kB
Committed_AS:  1549028 kB
PageTables:       1812 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= 66459 MiB

End job on node2 on Sun Mar  4 22:56:08 UTC 2007