Trace number 320224

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) 1.83672 1.83876

General information on the benchmark

Nameindustrial/manolios/
manol-pipe-c10nidw_s.cnf
MD5SUM7989bb134c6f50cb418407e85e733980
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark29.1476
Satisfiable
(Un)Satisfiability was proved
Number of variables404382
Number of clauses1204273
Sum of the clauses size2809969
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2802848
Number of clauses of size 3401424
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/320224-1173042797/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
1.79/1.82	c this formula cannot been solved by kcnfs
1.79/1.82

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/node4/watcher-320224-1173042797 -o ROOT/results/node4/solver-320224-1173042797 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320224-1173042797/kcnfs-2006 /tmp/evaluation/320224-1173042797/instance-320224-1173042797.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 0.96 0.98 3/77 3671
/proc/meminfo: memFree=1808296/2055920 swapFree=4191880/4192956
[pid=3671] ppid=3669 vsize=180908 CPUtime=0
/proc/3671/stat : 3671 (kcnfs-2006) R 3669 3671 3512 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 324234590 185249792 114 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/3671/statm: 45227 114 47 158 0 45067 0

[startup+0.0851621 s]
/proc/loadavg: 0.92 0.96 0.98 3/77 3671
/proc/meminfo: memFree=1808296/2055920 swapFree=4191880/4192956
[pid=3671] ppid=3669 vsize=185264 CPUtime=0.07
/proc/3671/stat : 3671 (kcnfs-2006) R 3669 3671 3512 0 -1 4194304 1203 0 0 0 7 0 0 0 18 0 1 0 324234590 189710336 1188 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/3671/statm: 46316 1189 47 158 0 46156 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 185264

[startup+0.101162 s]
/proc/loadavg: 0.92 0.96 0.98 3/77 3671
/proc/meminfo: memFree=1808296/2055920 swapFree=4191880/4192956
[pid=3671] ppid=3669 vsize=186056 CPUtime=0.09
/proc/3671/stat : 3671 (kcnfs-2006) R 3669 3671 3512 0 -1 4194304 1412 0 0 0 9 0 0 0 18 0 1 0 324234590 190521344 1397 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/3671/statm: 46514 1397 47 158 0 46354 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186056

[startup+0.301181 s]
/proc/loadavg: 0.92 0.96 0.98 3/77 3671
/proc/meminfo: memFree=1808296/2055920 swapFree=4191880/4192956
[pid=3671] ppid=3669 vsize=196484 CPUtime=0.29
/proc/3671/stat : 3671 (kcnfs-2006) R 3669 3671 3512 0 -1 4194304 4018 0 0 0 27 2 0 0 19 0 1 0 324234590 201199616 4003 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/3671/statm: 49121 4004 47 158 0 48961 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196484

[startup+0.701221 s]
/proc/loadavg: 0.92 0.96 0.98 3/77 3671
/proc/meminfo: memFree=1808296/2055920 swapFree=4191880/4192956
[pid=3671] ppid=3669 vsize=217208 CPUtime=0.69
/proc/3671/stat : 3671 (kcnfs-2006) R 3669 3671 3512 0 -1 4194304 9183 0 0 0 65 4 0 0 23 0 1 0 324234590 222420992 9168 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/3671/statm: 54302 9168 47 158 0 54142 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 217208

[startup+1.5023 s]
/proc/loadavg: 0.92 0.96 0.98 2/78 3672
/proc/meminfo: memFree=1756256/2055920 swapFree=4191880/4192956
[pid=3671] ppid=3669 vsize=258392 CPUtime=1.49
/proc/3671/stat : 3671 (kcnfs-2006) R 3669 3671 3512 0 -1 4194304 19483 0 0 0 139 10 0 0 25 0 1 0 324234590 264593408 19468 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134931150 0 0 4096 0 0 0 0 17 1 0 0
/proc/3671/statm: 64598 19469 47 158 0 64438 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 258392

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

[startup+1.70232 s]
/proc/loadavg: 0.92 0.96 0.98 2/78 3672
/proc/meminfo: memFree=1756256/2055920 swapFree=4191880/4192956
[pid=3671] ppid=3669 vsize=268688 CPUtime=1.69
/proc/3671/stat : 3671 (kcnfs-2006) R 3669 3671 3512 0 -1 4194304 22060 0 0 0 158 11 0 0 25 0 1 0 324234590 275136512 22045 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/3671/statm: 67172 22045 47 158 0 67012 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 268688

[startup+1.80132 s]
/proc/loadavg: 0.92 0.96 0.98 2/78 3672
/proc/meminfo: memFree=1756256/2055920 swapFree=4191880/4192956
[pid=3671] ppid=3669 vsize=273704 CPUtime=1.79
/proc/3671/stat : 3671 (kcnfs-2006) R 3669 3671 3512 0 -1 4194304 23330 0 0 0 167 12 0 0 25 0 1 0 324234590 280272896 23315 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134931333 0 0 4096 0 0 0 0 17 1 0 0
/proc/3671/statm: 68426 23316 47 158 0 68266 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 273704

Child status: 1
Real time (s): 1.83876
CPU time (s): 1.83672
CPU user time (s): 1.69574
CPU system time (s): 0.140978
CPU usage (%): 99.8888
Max. virtual memory (cumulated for all children) (KiB): 273704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.69574
system time used= 0.140978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 23592
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= 39

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Sun Mar  4 21:13:17 UTC 2007

IDJOB= 320224
IDBENCH= 20498
IDSOLVER= 113
FILE ID= node4/320224-1173042797

PBS_JOBID= 4012265

Free space on /tmp= 66518 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/manolios/manol-pipe-c10nidw_s.cnf
COMMAND LINE= /tmp/evaluation/320224-1173042797/kcnfs-2006 /tmp/evaluation/320224-1173042797/instance-320224-1173042797.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-320224-1173042797 -o ROOT/results/node4/solver-320224-1173042797 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320224-1173042797/kcnfs-2006 /tmp/evaluation/320224-1173042797/instance-320224-1173042797.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  7989bb134c6f50cb418407e85e733980

RANDOM SEED= 556212173

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:       1808768 kB
Buffers:         21080 kB
Cached:         102148 kB
SwapCached:         56 kB
Active:          82372 kB
Inactive:        99608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1808768 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           25276 kB
Writeback:           0 kB
Mapped:          69052 kB
Slab:            50768 kB
Committed_AS:  1215948 kB
PageTables:       1768 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= 66518 MiB

End job on node4 on Sun Mar  4 21:13:19 UTC 2007