Trace number 331429

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) 24.7832 24.7961

General information on the benchmark

Nameindustrial/vliw_sat_4.0/
9vliw_m_9stages_iq3_C1_bug7.cnf
MD5SUM6dcc1a7a687db45349fbaf9870c73e4b
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark39.631
Satisfiable
(Un)Satisfiability was proved
Number of variables521147
Number of clauses13378010
Sum of the clauses size39203144
Maximum clause length6689
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 28714054
Number of clauses of size 34209318
Number of clauses of size 425258
Number of clauses of size 515651
Number of clauses of size over 5413728

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/331429-1173184195/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
24.58/24.61	c this formula cannot been solved by kcnfs
24.58/24.61

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/node63/watcher-331429-1173184195 -o ROOT/results/node63/solver-331429-1173184195 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/331429-1173184195/kcnfs-2006 /tmp/evaluation/331429-1173184195/instance-331429-1173184195.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: 1.32 1.09 1.03 3/64 14280
/proc/meminfo: memFree=1579304/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=180908 CPUtime=0
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 125 0 0 0 0 0 0 0 18 0 1 0 338378879 185249792 110 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 45227 110 47 158 0 45067 0

[startup+0.079787 s]
/proc/loadavg: 1.32 1.09 1.03 3/64 14280
/proc/meminfo: memFree=1579304/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=185000 CPUtime=0.07
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 1157 0 0 0 7 0 0 0 18 0 1 0 338378879 189440000 1142 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 46250 1143 47 158 0 46090 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 185000

[startup+0.10179 s]
/proc/loadavg: 1.32 1.09 1.03 3/64 14280
/proc/meminfo: memFree=1579304/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=186188 CPUtime=0.09
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 1451 0 0 0 9 0 0 0 18 0 1 0 338378879 190656512 1436 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 46547 1436 47 158 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186188

[startup+0.301812 s]
/proc/loadavg: 1.32 1.09 1.03 3/64 14280
/proc/meminfo: memFree=1579304/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=196616 CPUtime=0.29
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 4043 0 0 0 26 3 0 0 19 0 1 0 338378879 201334784 4028 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 49154 4028 47 158 0 48994 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196616

[startup+0.701853 s]
/proc/loadavg: 1.32 1.09 1.03 3/64 14280
/proc/meminfo: memFree=1579304/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=217076 CPUtime=0.69
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 9176 0 0 0 63 6 0 0 22 0 1 0 338378879 222285824 9161 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 54269 9162 47 158 0 54109 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 217076

[startup+1.50194 s]
/proc/loadavg: 1.32 1.09 1.03 2/65 14281
/proc/meminfo: memFree=1527776/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=257996 CPUtime=1.49
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 19406 0 0 0 138 11 0 0 25 0 1 0 338378879 264187904 19391 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 64499 19392 47 158 0 64339 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 257996

[startup+3.10111 s]
/proc/loadavg: 1.32 1.09 1.03 2/65 14281
/proc/meminfo: memFree=1472160/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=339308 CPUtime=3.09
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 39713 0 0 0 289 20 0 0 25 0 1 0 338378879 347451392 39698 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 84827 39698 47 158 0 84667 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 339308

[startup+6.30145 s]
/proc/loadavg: 1.37 1.10 1.03 2/65 14281
/proc/meminfo: memFree=1305184/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=503252 CPUtime=6.28
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 80700 0 0 0 588 40 0 0 25 0 1 0 338378879 515330048 80685 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 125813 80685 47 158 0 125653 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 503252

[startup+12.7011 s]
/proc/loadavg: 1.34 1.10 1.03 2/65 14281
/proc/meminfo: memFree=1008864/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=782460 CPUtime=12.68
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 150494 0 0 0 1195 73 0 0 25 0 1 0 338378879 801239040 150479 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 195615 150480 47 158 0 195455 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 782460

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

[startup+19.1018 s]
/proc/loadavg: 1.29 1.10 1.03 2/65 14281
/proc/meminfo: memFree=698208/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=1090028 CPUtime=19.08
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 227413 0 0 0 1799 109 0 0 25 0 1 0 338378879 1116188672 227398 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 272507 227399 47 158 0 272347 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 1090028

[startup+22.3021 s]
/proc/loadavg: 1.29 1.10 1.03 2/65 14281
/proc/meminfo: memFree=522912/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=1259912 CPUtime=22.28
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 269858 0 0 0 2099 129 0 0 25 0 1 0 338378879 1290149888 269843 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134934551 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 314978 269843 47 158 0 314818 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 1259912

[startup+23.9013 s]
/proc/loadavg: 1.29 1.10 1.03 2/65 14281
/proc/meminfo: memFree=464736/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=1344392 CPUtime=23.88
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 291002 0 0 0 2248 140 0 0 25 0 1 0 338378879 1376657408 290987 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 336098 290988 47 158 0 335938 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 1344392

[startup+24.3014 s]
/proc/loadavg: 1.27 1.10 1.03 2/65 14281
/proc/meminfo: memFree=406240/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=1365776 CPUtime=24.28
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194304 296341 0 0 0 2286 142 0 0 25 0 1 0 338378879 1398554624 296326 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 341444 296326 47 158 0 341284 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 1365776

[startup+24.7014 s]
/proc/loadavg: 1.27 1.10 1.03 2/65 14281
/proc/meminfo: memFree=406240/2055920 swapFree=4183284/4192956
[pid=14280] ppid=14278 vsize=0 CPUtime=24.68
/proc/14280/stat : 14280 (kcnfs-2006) R 14278 14280 13396 0 -1 4194308 300536 0 0 0 2315 153 0 0 25 0 1 0 338378879 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/14280/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 24.68
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 24.7961
CPU time (s): 24.7832
CPU user time (s): 23.1555
CPU system time (s): 1.62775
CPU usage (%): 99.9482
Max. virtual memory (cumulated for all children) (KiB): 1381880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.1555
system time used= 1.62775
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 300536
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= 59

runsolver used 0.023996 second user time and 0.058991 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Tue Mar  6 12:30:15 UTC 2007

IDJOB= 331429
IDBENCH= 20587
IDSOLVER= 113
FILE ID= node63/331429-1173184195

PBS_JOBID= 4015273

Free space on /tmp= 66152 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/vliw_sat_4.0/9vliw_m_9stages_iq3_C1_bug7.cnf
COMMAND LINE= /tmp/evaluation/331429-1173184195/kcnfs-2006 /tmp/evaluation/331429-1173184195/instance-331429-1173184195.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-331429-1173184195 -o ROOT/results/node63/solver-331429-1173184195 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/331429-1173184195/kcnfs-2006 /tmp/evaluation/331429-1173184195/instance-331429-1173184195.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  6dcc1a7a687db45349fbaf9870c73e4b

RANDOM SEED= 203882850

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.214
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		: 3000.214
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:       1580160 kB
Buffers:          1200 kB
Cached:         365896 kB
SwapCached:       3368 kB
Active:         362748 kB
Inactive:        51356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1580160 kB
SwapTotal:     4192956 kB
SwapFree:      4183284 kB
Dirty:          244352 kB
Writeback:           0 kB
Mapped:          53272 kB
Slab:            47536 kB
Committed_AS:   835184 kB
PageTables:       1548 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= 66152 MiB

End job on node63 on Tue Mar  6 12:30:40 UTC 2007