Trace number 314028

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) 1.41978 1.42053

General information on the benchmark

Nameindustrial/anbulagan/
hard-unsat/dated-5-19-u.cnf
MD5SUM3be331331884289c55e55acdeed55dc7
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 variables208002
Number of clauses986543
Sum of the clauses size2288164
Maximum clause length10
Minimum clause length1
Number of clauses of size 117318
Number of clauses of size 2753529
Number of clauses of size 3176796
Number of clauses of size 44320
Number of clauses of size 517280
Number of clauses of size over 517300

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/314028-1176895128/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
1.39/1.40	c this formula cannot been solved by kcnfs
1.39/1.40

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/node34/watcher-314028-1176895128 -o ROOT/results/node34/solver-314028-1176895128 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/314028-1176895128/kcnfs-2006 /tmp/evaluation/314028-1176895128/instance-314028-1176895128.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: 1.00 1.00 1.00 3/77 9415
/proc/meminfo: memFree=1543736/2055920 swapFree=4142104/4192956
[pid=9415] ppid=9413 vsize=180908 CPUtime=0
/proc/9415/stat : 9415 (kcnfs-2006) R 9413 9415 8689 0 -1 4194304 125 0 0 0 0 0 0 0 18 0 1 0 137428244 185249792 110 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/9415/statm: 45227 111 47 158 0 45067 0

[startup+0.042781 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 9415
/proc/meminfo: memFree=1543736/2055920 swapFree=4142104/4192956
[pid=9415] ppid=9413 vsize=183152 CPUtime=0.03
/proc/9415/stat : 9415 (kcnfs-2006) R 9413 9415 8689 0 -1 4194304 680 0 0 0 3 0 0 0 18 0 1 0 137428244 187547648 665 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/9415/statm: 45788 666 47 158 0 45628 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 183152

[startup+0.101785 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 9415
/proc/meminfo: memFree=1543736/2055920 swapFree=4142104/4192956
[pid=9415] ppid=9413 vsize=186452 CPUtime=0.09
/proc/9415/stat : 9415 (kcnfs-2006) R 9413 9415 8689 0 -1 4194304 1516 0 0 0 9 0 0 0 18 0 1 0 137428244 190926848 1501 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/9415/statm: 46613 1501 47 158 0 46453 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186452

[startup+0.3018 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 9415
/proc/meminfo: memFree=1543736/2055920 swapFree=4142104/4192956
[pid=9415] ppid=9413 vsize=197408 CPUtime=0.29
/proc/9415/stat : 9415 (kcnfs-2006) R 9413 9415 8689 0 -1 4194304 4230 0 0 0 27 2 0 0 19 0 1 0 137428244 202145792 4215 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/9415/statm: 49352 4216 47 158 0 49192 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197408

[startup+0.701832 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 9415
/proc/meminfo: memFree=1543736/2055920 swapFree=4142104/4192956
[pid=9415] ppid=9413 vsize=218792 CPUtime=0.69
/proc/9415/stat : 9415 (kcnfs-2006) R 9413 9415 8689 0 -1 4194304 9582 0 0 0 64 5 0 0 23 0 1 0 137428244 224043008 9567 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/9415/statm: 54698 9568 47 158 0 54538 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218792

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

[startup+1.10687 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 9416
/proc/meminfo: memFree=1488624/2055920 swapFree=4142104/4192956
[pid=9415] ppid=9413 vsize=241364 CPUtime=1.1
/proc/9415/stat : 9415 (kcnfs-2006) R 9413 9415 8689 0 -1 4194304 15224 0 0 0 101 9 0 0 25 0 1 0 137428244 247156736 15209 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/9415/statm: 60341 15209 47 158 0 60181 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 241364

[startup+1.30188 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 9416
/proc/meminfo: memFree=1488624/2055920 swapFree=4142104/4192956
[pid=9415] ppid=9413 vsize=251528 CPUtime=1.29
/proc/9415/stat : 9415 (kcnfs-2006) R 9413 9415 8689 0 -1 4194304 17768 0 0 0 119 10 0 0 25 0 1 0 137428244 257564672 17753 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/9415/statm: 62882 17754 47 158 0 62722 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 251528

[startup+1.40289 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 9416
/proc/meminfo: memFree=1488624/2055920 swapFree=4142104/4192956
[pid=9415] ppid=9413 vsize=256808 CPUtime=1.39
/proc/9415/stat : 9415 (kcnfs-2006) R 9413 9415 8689 0 -1 4194304 19097 0 0 0 129 10 0 0 25 0 1 0 137428244 262971392 19082 18446744073709551615 134512640 135163436 4294956656 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/9415/statm: 64202 19082 47 158 0 64042 0
Current children cumulated CPU time (s) 1.39
Current children cumulated vsize (KiB) 256808

Child status: 1
Real time (s): 1.42053
CPU time (s): 1.41978
CPU user time (s): 1.2998
CPU system time (s): 0.119981
CPU usage (%): 99.9478
Max. virtual memory (cumulated for all children) (KiB): 256808

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.2998
system time used= 0.119981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19166
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= 30

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node34 on Wed Apr 18 11:18:48 UTC 2007

IDJOB= 314028
IDBENCH= 20381
IDSOLVER= 113
FILE ID= node34/314028-1176895128

PBS_JOBID= 4595153

Free space on /tmp= 66422 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/dated-5-19-u.cnf
COMMAND LINE= /tmp/evaluation/314028-1176895128/kcnfs-2006 /tmp/evaluation/314028-1176895128/instance-314028-1176895128.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-314028-1176895128 -o ROOT/results/node34/solver-314028-1176895128 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/314028-1176895128/kcnfs-2006 /tmp/evaluation/314028-1176895128/instance-314028-1176895128.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  3be331331884289c55e55acdeed55dc7

RANDOM SEED= 212368756

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node34.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		: 3000.236
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		: 3000.236
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:       1544144 kB
Buffers:         33876 kB
Cached:         403200 kB
SwapCached:       3224 kB
Active:         167924 kB
Inactive:       293100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1544144 kB
SwapTotal:     4192956 kB
SwapFree:      4142104 kB
Dirty:           21028 kB
Writeback:           0 kB
Mapped:          30568 kB
Slab:            36076 kB
Committed_AS:   411092 kB
PageTables:       1976 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= 66422 MiB

End job on node34 on Wed Apr 18 11:18:50 UTC 2007