Trace number 314308

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) 2.28665 2.28715

General information on the benchmark

Nameindustrial/anbulagan/
hard-unsat/partial-10-19-u.cnf
MD5SUMec6ae8f44e827ed5bcc8aed459990775
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables330372
Number of clauses1570953
Sum of the clauses size3643384
Maximum clause length10
Minimum clause length1
Number of clauses of size 124592
Number of clauses of size 21203951
Number of clauses of size 3281190
Number of clauses of size 46800
Number of clauses of size 527200
Number of clauses of size over 527220

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/314308-1176899861/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
2.19/2.26	c this formula cannot been solved by kcnfs
2.19/2.26

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/node70/watcher-314308-1176899861 -o ROOT/results/node70/solver-314308-1176899861 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/314308-1176899861/kcnfs-2006 /tmp/evaluation/314308-1176899861/instance-314308-1176899861.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: 0.84 0.94 0.94 3/64 19249
/proc/meminfo: memFree=1221808/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=180908 CPUtime=0
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 123 0 0 0 0 0 0 0 18 0 1 0 129523486 185249792 108 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 45227 109 47 158 0 45067 0

[startup+0.0864091 s]
/proc/loadavg: 0.84 0.94 0.94 3/64 19249
/proc/meminfo: memFree=1221808/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=185528 CPUtime=0.07
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 1275 0 0 0 7 0 0 0 18 0 1 0 129523486 189980672 1260 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 46382 1261 47 158 0 46222 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 185528

[startup+0.101411 s]
/proc/loadavg: 0.84 0.94 0.94 3/64 19249
/proc/meminfo: memFree=1221808/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=186452 CPUtime=0.09
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 1490 0 0 0 9 0 0 0 18 0 1 0 129523486 190926848 1475 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 46613 1476 47 158 0 46453 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186452

[startup+0.301431 s]
/proc/loadavg: 0.84 0.94 0.94 3/64 19249
/proc/meminfo: memFree=1221808/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=197408 CPUtime=0.29
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 4234 0 0 0 28 1 0 0 19 0 1 0 129523486 202145792 4219 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 49352 4219 47 158 0 49192 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197408

[startup+0.701471 s]
/proc/loadavg: 0.84 0.94 0.94 3/64 19249
/proc/meminfo: memFree=1221808/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=218792 CPUtime=0.69
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 9606 0 0 0 66 3 0 0 22 0 1 0 129523486 224043008 9591 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 54731 9592 47 158 0 54571 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218792

[startup+1.50155 s]
/proc/loadavg: 0.84 0.94 0.94 2/65 19250
/proc/meminfo: memFree=1167656/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=261824 CPUtime=1.49
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 20334 0 0 0 140 9 0 0 25 0 1 0 129523486 268107776 20319 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 65456 20319 47 158 0 65296 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261824

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

[startup+1.90159 s]
/proc/loadavg: 0.84 0.94 0.94 2/65 19250
/proc/meminfo: memFree=1167656/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=283208 CPUtime=1.89
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 25704 0 0 0 178 11 0 0 25 0 1 0 129523486 290004992 25689 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 70802 25690 47 158 0 70642 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 283208

[startup+2.10161 s]
/proc/loadavg: 0.84 0.94 0.94 2/65 19250
/proc/meminfo: memFree=1108584/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=293768 CPUtime=2.09
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 28336 0 0 0 197 12 0 0 25 0 1 0 129523486 300818432 28321 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 73442 28321 47 158 0 73282 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 293768

[startup+2.20562 s]
/proc/loadavg: 0.84 0.94 0.94 2/65 19250
/proc/meminfo: memFree=1108584/2055920 swapFree=4183760/4192956
[pid=19249] ppid=19247 vsize=298916 CPUtime=2.19
/proc/19249/stat : 19249 (kcnfs-2006) R 19247 19249 18015 0 -1 4194304 29634 0 0 0 206 13 0 0 25 0 1 0 129523486 306089984 29619 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/19249/statm: 74729 29619 47 158 0 74569 0
Current children cumulated CPU time (s) 2.19
Current children cumulated vsize (KiB) 298916

Child status: 1
Real time (s): 2.28715
CPU time (s): 2.28665
CPU user time (s): 2.12968
CPU system time (s): 0.156976
CPU usage (%): 99.9781
Max. virtual memory (cumulated for all children) (KiB): 298916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.12968
system time used= 0.156976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 30473
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= 4

runsolver used 0.005999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node70 on Wed Apr 18 12:37:42 UTC 2007

IDJOB= 314308
IDBENCH= 20388
IDSOLVER= 113
FILE ID= node70/314308-1176899861

PBS_JOBID= 4595155

Free space on /tmp= 66446 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/partial-10-19-u.cnf
COMMAND LINE= /tmp/evaluation/314308-1176899861/kcnfs-2006 /tmp/evaluation/314308-1176899861/instance-314308-1176899861.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-314308-1176899861 -o ROOT/results/node70/solver-314308-1176899861 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/314308-1176899861/kcnfs-2006 /tmp/evaluation/314308-1176899861/instance-314308-1176899861.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  ec6ae8f44e827ed5bcc8aed459990775

RANDOM SEED= 861734709

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node70.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		: 3000.218
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		: 3000.218
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:       1222280 kB
Buffers:         18180 kB
Cached:         742368 kB
SwapCached:       3092 kB
Active:         266388 kB
Inactive:       503804 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1222280 kB
SwapTotal:     4192956 kB
SwapFree:      4183760 kB
Dirty:           32100 kB
Writeback:           0 kB
Mapped:          15644 kB
Slab:            49512 kB
Committed_AS:  2457376 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= 66446 MiB

End job on node70 on Wed Apr 18 12:37:44 UTC 2007