Trace number 331471

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) 23.4904 23.4993

General information on the benchmark

Nameindustrial/vliw_sat_4.0/
9vliw_m_9stages_iq3_C1_bug1.cnf
MD5SUM1911de49ec477d3e34b9a95eb8bf0845
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark52.587
Satisfiable
(Un)Satisfiability was proved
Number of variables521188
Number of clauses13378641
Sum of the clauses size39204979
Maximum clause length6689
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 28714562
Number of clauses of size 34209417
Number of clauses of size 425257
Number of clauses of size 515681
Number of clauses of size over 5413723

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/331471-1173184524/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
23.28/23.32	c this formula cannot been solved by kcnfs
23.28/23.32

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/node76/watcher-331471-1173184524 -o ROOT/results/node76/solver-331471-1173184524 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/331471-1173184524/kcnfs-2006 /tmp/evaluation/331471-1173184524/instance-331471-1173184524.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: 2.09 2.01 1.57 3/69 5210
/proc/meminfo: memFree=1581584/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=180908 CPUtime=0
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 338412480 185249792 115 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 45227 115 47 158 0 45067 0

[startup+0.051361 s]
/proc/loadavg: 2.09 2.01 1.57 3/69 5210
/proc/meminfo: memFree=1581584/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=183680 CPUtime=0.04
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 807 0 0 0 4 0 0 0 18 0 1 0 338412480 188088320 793 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 45920 793 47 158 0 45760 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 183680

[startup+0.101366 s]
/proc/loadavg: 2.09 2.01 1.57 3/69 5210
/proc/meminfo: memFree=1581584/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=186452 CPUtime=0.09
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 1513 0 0 0 9 0 0 0 18 0 1 0 338412480 190926848 1499 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 46613 1499 47 158 0 46453 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186452

[startup+0.301389 s]
/proc/loadavg: 2.09 2.01 1.57 3/69 5210
/proc/meminfo: memFree=1581584/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=197408 CPUtime=0.29
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 4237 0 0 0 28 1 0 0 19 0 1 0 338412480 202145792 4223 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 49352 4223 47 158 0 49192 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197408

[startup+0.701435 s]
/proc/loadavg: 2.09 2.01 1.57 3/69 5210
/proc/meminfo: memFree=1581584/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=219056 CPUtime=0.69
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 9658 0 0 0 66 3 0 0 23 0 1 0 338412480 224313344 9644 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 54764 9644 47 158 0 54604 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 219056

[startup+1.50153 s]
/proc/loadavg: 2.09 2.01 1.57 2/70 5211
/proc/meminfo: memFree=1526792/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=262352 CPUtime=1.49
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 20474 0 0 0 142 7 0 0 25 0 1 0 338412480 268648448 20460 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 65588 20460 47 158 0 65428 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 262352

[startup+3.10171 s]
/proc/loadavg: 2.09 2.00 1.57 2/70 5211
/proc/meminfo: memFree=1467400/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=348284 CPUtime=3.09
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 41956 0 0 0 292 17 0 0 25 0 1 0 338412480 356642816 41942 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 87071 41943 47 158 0 86911 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 348284

[startup+6.30107 s]
/proc/loadavg: 2.09 2.00 1.57 2/70 5211
/proc/meminfo: memFree=1288464/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=517640 CPUtime=6.29
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 84312 0 0 0 592 37 0 0 25 0 1 0 338412480 530063360 84298 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 129410 84298 47 158 0 129250 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 517640

[startup+12.7028 s]
/proc/loadavg: 2.15 2.02 1.58 2/70 5211
/proc/meminfo: memFree=981712/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=810624 CPUtime=12.69
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 157560 0 0 0 1196 73 0 0 25 0 1 0 338412480 830078976 157546 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 202656 157547 47 158 0 202496 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 810624

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

[startup+19.1015 s]
/proc/loadavg: 2.22 2.04 1.59 2/70 5211
/proc/meminfo: memFree=644304/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=1144464 CPUtime=19.09
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 240995 0 0 0 1794 115 0 0 25 0 1 0 338412480 1171931136 240981 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 286116 240982 47 158 0 285956 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 1144464

[startup+20.7017 s]
/proc/loadavg: 2.22 2.04 1.59 2/70 5211
/proc/meminfo: memFree=582672/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=1234884 CPUtime=20.69
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 263609 0 0 0 1942 127 0 0 25 0 1 0 338412480 1264521216 263595 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 308721 263595 47 158 0 308561 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 1234884

[startup+22.3019 s]
/proc/loadavg: 2.36 2.07 1.60 2/70 5211
/proc/meminfo: memFree=458832/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=1324776 CPUtime=22.28
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 286079 0 0 0 2095 133 0 0 25 0 1 0 338412480 1356570624 286065 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 331194 286066 47 158 0 331034 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 1324776

[startup+23.106 s]
/proc/loadavg: 2.36 2.07 1.60 2/70 5211
/proc/meminfo: memFree=397136/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=1369920 CPUtime=23.09
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 297382 0 0 0 2171 138 0 0 25 0 1 0 338412480 1402798080 297368 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 342480 297369 47 158 0 342320 0
Current children cumulated CPU time (s) 23.09
Current children cumulated vsize (KiB) 1369920

[startup+23.302 s]
/proc/loadavg: 2.36 2.07 1.60 2/70 5211
/proc/meminfo: memFree=397136/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=1381140 CPUtime=23.28
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194304 300170 0 0 0 2189 139 0 0 25 0 1 0 338412480 1414287360 300156 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 345285 300156 47 158 0 345125 0
Current children cumulated CPU time (s) 23.28
Current children cumulated vsize (KiB) 1381140

[startup+23.401 s]
/proc/loadavg: 2.36 2.07 1.60 2/70 5211
/proc/meminfo: memFree=397136/2055888 swapFree=4087192/4096564
[pid=5210] ppid=5208 vsize=0 CPUtime=23.38
/proc/5210/stat : 5210 (kcnfs-2006) R 5208 5210 3483 0 -1 4194308 300550 0 0 0 2191 147 0 0 25 0 1 0 338412480 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/5210/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 23.38
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 23.4993
CPU time (s): 23.4904
CPU user time (s): 21.9187
CPU system time (s): 1.57176
CPU usage (%): 99.9624
Max. virtual memory (cumulated for all children) (KiB): 1381140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.9187
system time used= 1.57176
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 300550
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= 37

runsolver used 0.021996 second user time and 0.051992 second system time

The end

Launcher Data (download as text)

Begin job on node76 on Tue Mar  6 12:35:42 UTC 2007

IDJOB= 331471
IDBENCH= 20588
IDSOLVER= 113
FILE ID= node76/331471-1173184524

PBS_JOBID= 4015266

Free space on /tmp= 66223 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/vliw_sat_4.0/9vliw_m_9stages_iq3_C1_bug1.cnf
COMMAND LINE= /tmp/evaluation/331471-1173184524/kcnfs-2006 /tmp/evaluation/331471-1173184524/instance-331471-1173184524.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-331471-1173184524 -o ROOT/results/node76/solver-331471-1173184524 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/331471-1173184524/kcnfs-2006 /tmp/evaluation/331471-1173184524/instance-331471-1173184524.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  1911de49ec477d3e34b9a95eb8bf0845

RANDOM SEED= 692804612

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node76.alineos.net 2.6.9-34.ELsmp #1 SMP Thu Mar 9 06:23:23 GMT 2006 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		: 3000.219
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	: 6006.18
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		: 3000.219
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1581992 kB
Buffers:          1740 kB
Cached:         367432 kB
SwapCached:       1428 kB
Active:         407308 kB
Inactive:         7656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1581992 kB
SwapTotal:     4096564 kB
SwapFree:      4087192 kB
Dirty:          244340 kB
Writeback:           0 kB
Mapped:          52948 kB
Slab:            45108 kB
Committed_AS:  1220936 kB
PageTables:       1568 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66223 MiB

End job on node76 on Tue Mar  6 12:36:05 UTC 2007