Trace number 1553200

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
kw 2009-03-20UNSAT 2.81557 2.81647

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor032.cnf
MD5SUM93c9f18c75548b864ec69c2789cae658
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.418935
Satisfiable
(Un)Satisfiability was proved
Number of variables4210
Number of clauses12053
Sum of the clauses size28121
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28034
Number of clauses of size 34017
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c kw (KillerWhale) version 0.6
0.00/0.00	c Copyright 2007-2009 Johan Alfredsson, Oepir
0.00/0.00	c johan@oepir.com
2.79/2.81	c 2.75 seconds
2.79/2.81	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1553200-1238712340/watcher-1553200-1238712340 -o /tmp/evaluation-result-1553200-1238712340/solver-1553200-1238712340 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/kw HOME/instance-1553200-1238712340.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): 1800 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: 1.85 1.77 1.60 3/81 5710
/proc/meminfo: memFree=1363256/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=5024 CPUtime=0
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 867 0 0 0 0 0 0 0 20 0 1 0 497562920 5144576 851 1992294400 4194304 6412682 548682068832 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 1256 851 219 541 0 706 0

[startup+0.02479 s]
/proc/loadavg: 1.85 1.77 1.60 3/81 5710
/proc/meminfo: memFree=1363256/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=5288 CPUtime=0.02
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 953 0 0 0 2 0 0 0 20 0 1 0 497562920 5414912 937 1992294400 4194304 6412682 548682068832 18446744073709551615 5554128 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 1322 937 220 541 0 772 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5288

[startup+0.101797 s]
/proc/loadavg: 1.85 1.77 1.60 3/81 5710
/proc/meminfo: memFree=1363256/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=7264 CPUtime=0.09
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 1453 0 0 0 8 1 0 0 20 0 1 0 497562920 7438336 1437 1992294400 4194304 6412682 548682068832 18446744073709551615 5554256 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 1816 1438 248 541 0 1266 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7264

[startup+0.301816 s]
/proc/loadavg: 1.85 1.77 1.60 3/81 5710
/proc/meminfo: memFree=1363256/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=10860 CPUtime=0.29
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 2297 0 0 0 27 2 0 0 22 0 1 0 497562920 11120640 2281 1992294400 4194304 6412682 548682068832 18446744073709551615 4348189 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 2715 2282 247 541 0 2165 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10860

[startup+0.701855 s]
/proc/loadavg: 1.85 1.77 1.60 3/81 5710
/proc/meminfo: memFree=1363256/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=17248 CPUtime=0.69
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 3811 0 0 0 64 5 0 0 25 0 1 0 497562920 17661952 3795 1992294400 4194304 6412682 548682068832 18446744073709551615 5554256 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 4312 3795 248 541 0 3762 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17248

[startup+1.50193 s]
/proc/loadavg: 1.78 1.76 1.60 2/82 5711
/proc/meminfo: memFree=1346416/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=17380 CPUtime=1.49
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 3874 0 0 0 143 6 0 0 25 0 1 0 497562920 17797120 3858 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 4345 3858 255 541 0 3795 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 17380

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

[startup+2.30201 s]
/proc/loadavg: 1.78 1.76 1.60 2/82 5711
/proc/meminfo: memFree=1346096/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=17380 CPUtime=2.29
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 3913 0 0 0 222 7 0 0 25 0 1 0 497562920 17797120 3897 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 4345 3897 255 541 0 3795 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 17380

[startup+2.70105 s]
/proc/loadavg: 1.78 1.76 1.60 2/82 5711
/proc/meminfo: memFree=1346096/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=17380 CPUtime=2.69
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 3916 0 0 0 262 7 0 0 25 0 1 0 497562920 17797120 3900 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 4345 3900 255 541 0 3795 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 17380

[startup+2.80106 s]
/proc/loadavg: 1.78 1.76 1.60 2/82 5711
/proc/meminfo: memFree=1346096/2055920 swapFree=4169692/4192956
[pid=5710] ppid=5708 vsize=17380 CPUtime=2.79
/proc/5710/stat : 5710 (kw) R 5708 5710 5644 0 -1 0 3917 0 0 0 272 7 0 0 25 0 1 0 497562920 17797120 3901 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/5710/statm: 4345 3901 255 541 0 3795 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 17380

Child status: 20
Real time (s): 2.81647
CPU time (s): 2.81557
CPU user time (s): 2.73658
CPU system time (s): 0.078987
CPU usage (%): 99.9682
Max. virtual memory (cumulated for all children) (KiB): 17380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.73658
system time used= 0.078987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3923
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= 2
involuntary context switches= 5

runsolver used 0.004999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node89 at 2009-04-03 00:45:40
IDJOB=1553200
IDBENCH=70757
IDSOLVER=501
FILE ID=node89/1553200-1238712340
PBS_JOBID= 9085322
Free space on /tmp= 66364 MiB

SOLVER NAME= kw 2009-03-20
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= HOME/kw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553200-1238712340/watcher-1553200-1238712340 -o /tmp/evaluation-result-1553200-1238712340/solver-1553200-1238712340 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/kw HOME/instance-1553200-1238712340.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED=325812615

node89.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.240
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		: 3000.240
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1363672 kB
Buffers:         94228 kB
Cached:         498968 kB
SwapCached:      12480 kB
Active:         247128 kB
Inactive:       360532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1363672 kB
SwapTotal:     4192956 kB
SwapFree:      4169692 kB
Dirty:            2400 kB
Writeback:           0 kB
Mapped:          19564 kB
Slab:            68792 kB
Committed_AS:  1616184 kB
PageTables:       2600 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= 66360 MiB
End job on node89 at 2009-04-03 00:45:43