Trace number 422243

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 1.08183 1.11296

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00200.sat05-1329.reshuffled-07.cnf
MD5SUM2ed4f9474a813c543de526c0ca3729de
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.08183
Satisfiable
(Un)Satisfiability was proved
Number of variables725
Number of clauses22684
Sum of the clauses size194068
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 219
Number of clauses of size 3197
Number of clauses of size 4381
Number of clauses of size 51017
Number of clauses of size over 521068

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:  725                                                  |
0.00/0.00	c |  Number of clauses:    22684                                                |
0.00/0.05	c |  Parsing time:         0.05         s                                       |
1.00/1.08	c restarts              : 0
1.00/1.08	c conflicts             : 0              (0 /sec)
1.00/1.08	c decisions             : 0              ( nan % random) (0 /sec)
1.00/1.08	c propagations          : 36             (33 /sec)
1.00/1.08	c conflict literals     : 0              ( nan % deleted)
1.00/1.08	c Memory used           : 7.55 MB
1.00/1.08	c CPU time              : 1.07684 s
1.00/1.08	c 
1.00/1.08	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/node27/watcher-422243-1177551948 -o ROOT/results/node27/solver-422243-1177551948 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/422243-1177551948/minisat_noassertions /tmp/evaluation/422243-1177551948/instance-422243-1177551948.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.74 0.98 0.95 3/65 17676
/proc/meminfo: memFree=1615072/2055920 swapFree=4182888/4192956
[pid=17676] ppid=17674 vsize=1856 CPUtime=0
/proc/17676/stat : 17676 (minisat_noasser) R 17674 17676 16889 0 -1 4194304 342 0 0 0 0 0 0 0 18 0 1 0 167890791 1900544 328 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/17676/statm: 464 329 50 130 0 331 0

[startup+0.0989181 s]
/proc/loadavg: 0.74 0.98 0.95 3/65 17676
/proc/meminfo: memFree=1615072/2055920 swapFree=4182888/4192956
[pid=17676] ppid=17674 vsize=4300 CPUtime=0.09
/proc/17676/stat : 17676 (minisat_noasser) R 17674 17676 16889 0 -1 4194304 942 0 0 0 9 0 0 0 18 0 1 0 167890791 4403200 928 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529230 0 0 4096 3 0 0 0 17 1 0 0
/proc/17676/statm: 1075 928 62 130 0 942 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4300

[startup+0.101919 s]
/proc/loadavg: 0.74 0.98 0.95 3/65 17676
/proc/meminfo: memFree=1615072/2055920 swapFree=4182888/4192956
[pid=17676] ppid=17674 vsize=4300 CPUtime=0.09
/proc/17676/stat : 17676 (minisat_noasser) R 17674 17676 16889 0 -1 4194304 942 0 0 0 9 0 0 0 18 0 1 0 167890791 4403200 928 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529400 0 0 4096 3 0 0 0 17 1 0 0
/proc/17676/statm: 1075 928 62 130 0 942 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4300

[startup+0.301938 s]
/proc/loadavg: 0.74 0.98 0.95 3/65 17676
/proc/meminfo: memFree=1615072/2055920 swapFree=4182888/4192956
[pid=17676] ppid=17674 vsize=5700 CPUtime=0.29
/proc/17676/stat : 17676 (minisat_noasser) R 17674 17676 16889 0 -1 4194304 1305 0 0 0 29 0 0 0 19 0 1 0 167890791 5836800 1291 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529400 0 0 4096 3 0 0 0 17 1 0 0
/proc/17676/statm: 1425 1291 62 130 0 1292 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5700

[startup+0.70198 s]
/proc/loadavg: 0.74 0.98 0.95 3/65 17676
/proc/meminfo: memFree=1615072/2055920 swapFree=4182888/4192956
[pid=17676] ppid=17674 vsize=6556 CPUtime=0.69
/proc/17676/stat : 17676 (minisat_noasser) R 17674 17676 16889 0 -1 4194304 1510 0 0 0 69 0 0 0 22 0 1 0 167890791 6713344 1496 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134521200 0 0 4096 3 0 0 0 17 1 0 0
/proc/17676/statm: 1639 1496 62 130 0 1506 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6556

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

[startup+1.10602 s]
/proc/loadavg: 0.74 0.98 0.95 2/66 17677
/proc/meminfo: memFree=1608536/2055920 swapFree=4182888/4192956
[pid=17676] ppid=17674 vsize=0 CPUtime=1.07
/proc/17676/stat : 17676 (minisat_noasser) D 17674 17676 16889 0 -1 4194308 1782 0 0 0 107 0 0 0 24 0 1 0 167890791 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 3 18446744072100051646 0 0 17 1 0 0
/proc/17676/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 1.07
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 1.11296
CPU time (s): 1.08183
CPU user time (s): 1.07684
CPU system time (s): 0.004999
CPU usage (%): 97.2031
Max. virtual memory (cumulated for all children) (KiB): 7520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.07684
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1782
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= 0

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node27 on Thu Apr 26 01:45:49 UTC 2007

IDJOB= 422243
IDBENCH= 24591
IDSOLVER= 189
FILE ID= node27/422243-1177551948

PBS_JOBID= 4696449

Free space on /tmp= 66376 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00200.sat05-1329.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/422243-1177551948/minisat_noassertions /tmp/evaluation/422243-1177551948/instance-422243-1177551948.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node27/watcher-422243-1177551948 -o ROOT/results/node27/solver-422243-1177551948 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/422243-1177551948/minisat_noassertions /tmp/evaluation/422243-1177551948/instance-422243-1177551948.cnf

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  2ed4f9474a813c543de526c0ca3729de

RANDOM SEED= 308577124

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node27.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		: 3000.213
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	: 5931.00
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		: 3000.213
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:       1615608 kB
Buffers:         30356 kB
Cached:         319764 kB
SwapCached:       4364 kB
Active:         206936 kB
Inactive:       190880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1615608 kB
SwapTotal:     4192956 kB
SwapFree:      4182888 kB
Dirty:            2468 kB
Writeback:           0 kB
Mapped:          53148 kB
Slab:            28468 kB
Committed_AS:  2214448 kB
PageTables:       1508 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= 66376 MiB

End job on node27 on Thu Apr 26 01:45:50 UTC 2007