Trace number 421687

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
minisat SAT 2007UNSAT 1.92171 1.92408

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
MD5SUM922dc9f32281b0c4efd640c112a641b6
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.75373
Satisfiable
(Un)Satisfiability was proved
Number of variables864
Number of clauses32700
Sum of the clauses size256765
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228
Number of clauses of size 3180
Number of clauses of size 4348
Number of clauses of size 51746
Number of clauses of size over 530396

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  864                                                  |
0.00/0.00	c |  Number of clauses:    32700                                                |
0.01/0.07	c |  Parsing time:         0.07         s                                       |
1.89/1.92	c restarts              : 0
1.89/1.92	c conflicts             : 0              (0 /sec)
1.89/1.92	c decisions             : 0              ( nan % random) (0 /sec)
1.89/1.92	c propagations          : 50             (26 /sec)
1.89/1.92	c conflict literals     : 0              ( nan % deleted)
1.89/1.92	c Memory used           : 8.38 MB
1.89/1.92	c CPU time              : 1.90971 s
1.89/1.92	c 
1.89/1.92	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node60/watcher-421687-1177494360 -o ROOT/results/node60/solver-421687-1177494360 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421687-1177494360/minisat_noassertions /tmp/evaluation/421687-1177494360/instance-421687-1177494360.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: 0.95 1.02 0.94 3/64 22779
/proc/meminfo: memFree=1659968/2055920 swapFree=4183288/4192956
[pid=22779] ppid=22777 vsize=1856 CPUtime=0
/proc/22779/stat : 22779 (minisat_noasser) R 22777 22779 22164 0 -1 4194304 381 0 0 0 0 0 0 0 18 0 1 0 197345980 1900544 367 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/22779/statm: 464 367 50 130 0 331 0

[startup+0.01765 s]
/proc/loadavg: 0.95 1.02 0.94 3/64 22779
/proc/meminfo: memFree=1659968/2055920 swapFree=4183288/4192956
[pid=22779] ppid=22777 vsize=2536 CPUtime=0.01
/proc/22779/stat : 22779 (minisat_noasser) R 22777 22779 22164 0 -1 4194304 529 0 0 0 1 0 0 0 18 0 1 0 197345980 2596864 515 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/22779/statm: 634 515 50 130 0 501 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2536

[startup+0.101657 s]
/proc/loadavg: 0.95 1.02 0.94 3/64 22779
/proc/meminfo: memFree=1659968/2055920 swapFree=4183288/4192956
[pid=22779] ppid=22777 vsize=5200 CPUtime=0.09
/proc/22779/stat : 22779 (minisat_noasser) R 22777 22779 22164 0 -1 4194304 1198 0 0 0 9 0 0 0 18 0 1 0 197345980 5324800 1184 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529400 0 0 4096 3 0 0 0 17 1 0 0
/proc/22779/statm: 1300 1184 62 130 0 1167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5200

[startup+0.301676 s]
/proc/loadavg: 0.95 1.02 0.94 3/64 22779
/proc/meminfo: memFree=1659968/2055920 swapFree=4183288/4192956
[pid=22779] ppid=22777 vsize=5200 CPUtime=0.29
/proc/22779/stat : 22779 (minisat_noasser) R 22777 22779 22164 0 -1 4194304 1198 0 0 0 29 0 0 0 19 0 1 0 197345980 5324800 1184 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529241 0 0 4096 3 0 0 0 17 1 0 0
/proc/22779/statm: 1300 1184 62 130 0 1167 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5200

[startup+0.701715 s]
/proc/loadavg: 0.95 1.02 0.94 3/64 22779
/proc/meminfo: memFree=1659968/2055920 swapFree=4183288/4192956
[pid=22779] ppid=22777 vsize=6192 CPUtime=0.69
/proc/22779/stat : 22779 (minisat_noasser) R 22777 22779 22164 0 -1 4194304 1452 0 0 0 69 0 0 0 23 0 1 0 197345980 6340608 1438 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529400 0 0 4096 3 0 0 0 17 1 0 0
/proc/22779/statm: 1548 1438 62 130 0 1415 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6192

[startup+1.50179 s]
/proc/loadavg: 0.95 1.02 0.94 2/65 22780
/proc/meminfo: memFree=1653816/2055920 swapFree=4183288/4192956
[pid=22779] ppid=22777 vsize=7520 CPUtime=1.49
/proc/22779/stat : 22779 (minisat_noasser) R 22777 22779 22164 0 -1 4194304 1759 0 0 0 149 0 0 0 25 0 1 0 197345980 7700480 1745 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529712 0 0 4096 3 0 0 0 17 1 0 0
/proc/22779/statm: 1880 1745 62 130 0 1747 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7520

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

[startup+1.90183 s]
/proc/loadavg: 0.95 1.02 0.94 2/65 22780
/proc/meminfo: memFree=1653816/2055920 swapFree=4183288/4192956
[pid=22779] ppid=22777 vsize=8580 CPUtime=1.89
/proc/22779/stat : 22779 (minisat_noasser) R 22777 22779 22164 0 -1 4194304 2000 0 0 0 189 0 0 0 25 0 1 0 197345980 8785920 1986 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/22779/statm: 2145 1986 62 130 0 2012 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 8580

Child status: 20
Real time (s): 1.92408
CPU time (s): 1.92171
CPU user time (s): 1.90971
CPU system time (s): 0.011998
CPU usage (%): 99.8769
Max. virtual memory (cumulated for all children) (KiB): 8580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.90971
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2035
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= 4

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Wed Apr 25 09:46:00 UTC 2007

IDJOB= 421687
IDBENCH= 24590
IDSOLVER= 188
FILE ID= node60/421687-1177494360

PBS_JOBID= 4685823

Free space on /tmp= 66415 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/421687-1177494360/minisat_noassertions /tmp/evaluation/421687-1177494360/instance-421687-1177494360.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-421687-1177494360 -o ROOT/results/node60/solver-421687-1177494360 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421687-1177494360/minisat_noassertions /tmp/evaluation/421687-1177494360/instance-421687-1177494360.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  922dc9f32281b0c4efd640c112a641b6

RANDOM SEED= 379837388

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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:       1660440 kB
Buffers:         27428 kB
Cached:         255232 kB
SwapCached:       3688 kB
Active:         154980 kB
Inactive:       175024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1660440 kB
SwapTotal:     4192956 kB
SwapFree:      4183288 kB
Dirty:            2760 kB
Writeback:           0 kB
Mapped:          53324 kB
Slab:            51420 kB
Committed_AS:  2583512 kB
PageTables:       1560 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= 66415 MiB

End job on node60 on Wed Apr 25 09:46:02 UTC 2007