Trace number 421592

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 0.696893 0.698487

General information on the benchmark

Nameindustrial/babic/
xinetd/itox_vc1216.cnf
MD5SUMc076019a7fab0d8f88cfc5880f64abd3
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.343946
Satisfiable
(Un)Satisfiability was proved
Number of variables151619
Number of clauses440151
Sum of the clauses size1138189
Maximum clause length3
Minimum clause length1
Number of clauses of size 110189
Number of clauses of size 2161886
Number of clauses of size 3268076
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	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:  151791                                               |
0.00/0.00	c |  Number of clauses:    440151                                               |
0.39/0.50	c |  Parsing time:         0.45         s                                       |
0.59/0.68	c restarts              : 0
0.59/0.68	c conflicts             : 0              (0 /sec)
0.59/0.68	c decisions             : 0              ( nan % random) (0 /sec)
0.59/0.68	c propagations          : 20823          (32797 /sec)
0.59/0.68	c conflict literals     : 0              ( nan % deleted)
0.59/0.68	c Memory used           : 46.23 MB
0.59/0.68	c CPU time              : 0.634903 s
0.59/0.68	c 
0.59/0.68	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/node2/watcher-421592-1177493032 -o ROOT/results/node2/solver-421592-1177493032 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421592-1177493032/minisat_noassertions /tmp/evaluation/421592-1177493032/instance-421592-1177493032.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: 0.86 0.97 0.90 3/77 16596
/proc/meminfo: memFree=1837368/2055920 swapFree=4148972/4192956
[pid=16596] ppid=16594 vsize=2456 CPUtime=0
/proc/16596/stat : 16596 (minisat_noasser) R 16594 16596 16160 0 -1 4194304 525 0 0 0 0 0 0 0 18 0 1 0 225341085 2514944 511 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134524841 0 0 4096 3 0 0 0 17 1 0 0
/proc/16596/statm: 614 512 50 130 0 481 0

[startup+0.0647171 s]
/proc/loadavg: 0.86 0.97 0.90 3/77 16596
/proc/meminfo: memFree=1837368/2055920 swapFree=4148972/4192956
[pid=16596] ppid=16594 vsize=20304 CPUtime=0.06
/proc/16596/stat : 16596 (minisat_noasser) R 16594 16596 16160 0 -1 4194304 4160 0 0 0 4 2 0 0 18 0 1 0 225341085 20791296 4094 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134524854 0 0 4096 3 0 0 0 17 1 0 0
/proc/16596/statm: 5076 4095 50 130 0 4943 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 20304

[startup+0.101719 s]
/proc/loadavg: 0.86 0.97 0.90 3/77 16596
/proc/meminfo: memFree=1837368/2055920 swapFree=4148972/4192956
[pid=16596] ppid=16594 vsize=22216 CPUtime=0.09
/proc/16596/stat : 16596 (minisat_noasser) R 16594 16596 16160 0 -1 4194304 4612 0 0 0 7 2 0 0 18 0 1 0 225341085 22749184 4546 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/16596/statm: 5554 4546 50 130 0 5421 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 22216

[startup+0.301739 s]
/proc/loadavg: 0.86 0.97 0.90 3/77 16596
/proc/meminfo: memFree=1837368/2055920 swapFree=4148972/4192956
[pid=16596] ppid=16594 vsize=34520 CPUtime=0.29
/proc/16596/stat : 16596 (minisat_noasser) R 16594 16596 16160 0 -1 4194304 7539 0 0 0 26 3 0 0 19 0 1 0 225341085 35348480 7473 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/16596/statm: 8630 7473 50 130 0 8497 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 34520

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

[startup+0.501761 s]
/proc/loadavg: 0.86 0.97 0.90 3/77 16596
/proc/meminfo: memFree=1837368/2055920 swapFree=4148972/4192956
[pid=16596] ppid=16594 vsize=45516 CPUtime=0.49
/proc/16596/stat : 16596 (minisat_noasser) R 16594 16596 16160 0 -1 4194304 10367 0 0 0 44 5 0 0 21 0 1 0 225341085 46608384 10301 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134550863 0 0 4096 3 0 0 0 17 1 0 0
/proc/16596/statm: 11379 10301 62 130 0 11246 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 45516

[startup+0.601772 s]
/proc/loadavg: 0.86 0.97 0.90 3/77 16596
/proc/meminfo: memFree=1837368/2055920 swapFree=4148972/4192956
[pid=16596] ppid=16594 vsize=45516 CPUtime=0.59
/proc/16596/stat : 16596 (minisat_noasser) R 16594 16596 16160 0 -1 4194304 10371 0 0 0 54 5 0 0 22 0 1 0 225341085 46608384 10305 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529668 0 0 4096 3 0 0 0 17 1 0 0
/proc/16596/statm: 11379 10305 62 130 0 11246 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 45516

Child status: 20
Real time (s): 0.698487
CPU time (s): 0.696893
CPU user time (s): 0.634903
CPU system time (s): 0.06199
CPU usage (%): 99.7718
Max. virtual memory (cumulated for all children) (KiB): 45516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.634903
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10865
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= 15

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Wed Apr 25 09:23:53 UTC 2007

IDJOB= 421592
IDBENCH= 20515
IDSOLVER= 188
FILE ID= node2/421592-1177493032

PBS_JOBID= 4685870

Free space on /tmp= 66396 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/xinetd/itox_vc1216.cnf
COMMAND LINE= /tmp/evaluation/421592-1177493032/minisat_noassertions /tmp/evaluation/421592-1177493032/instance-421592-1177493032.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-421592-1177493032 -o ROOT/results/node2/solver-421592-1177493032 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421592-1177493032/minisat_noassertions /tmp/evaluation/421592-1177493032/instance-421592-1177493032.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  c076019a7fab0d8f88cfc5880f64abd3

RANDOM SEED= 308421493

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.234
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		: 3000.234
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:       1837904 kB
Buffers:         39060 kB
Cached:         106008 kB
SwapCached:      12964 kB
Active:         117048 kB
Inactive:        55520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1837904 kB
SwapTotal:     4192956 kB
SwapFree:      4148972 kB
Dirty:            9924 kB
Writeback:           0 kB
Mapped:          33960 kB
Slab:            30888 kB
Committed_AS:  8289068 kB
PageTables:       1868 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= 66396 MiB

End job on node2 on Wed Apr 25 09:23:54 UTC 2007