Trace number 1561769

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
MiniSat 2.1 (Sat-race'08 Edition)SAT 0.739886 0.740445

General information on the benchmark

NameCRAFTED/edgematching/
explicit/em_7_3_6_exp.cnf
MD5SUM5b8699f429b7fdd3e23d69c762326321
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.739886
Satisfiable
(Un)Satisfiability was proved
Number of variables1473
Number of clauses22887
Sum of the clauses size60224
Maximum clause length25
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 213705
Number of clauses of size 37024
Number of clauses of size 4708
Number of clauses of size 51300
Number of clauses of size over 5150

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.01	c |  Number of variables:          1473                                         |
0.00/0.01	c |  Number of clauses:           22887                                         |
0.00/0.01	c |  Parse time:                   0.01 s                                       |
0.03/0.05	c |  Simplification time:          0.04 s                                       |
0.03/0.05	c |                                                                             |
0.03/0.05	c ============================[ Search Statistics ]==============================
0.03/0.05	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.03/0.05	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.03/0.05	c ===============================================================================
0.03/0.05	c |       100 |    1453    22537    59210 |     8263       99     17 |  0.815 % |
0.03/0.06	c |       250 |    1440    22537    59210 |     9089      247     15 |  1.697 % |
0.03/0.06	c |       475 |    1428    22537    59210 |     9998      471     17 |  2.512 % |
0.03/0.07	c |       812 |    1427    22537    59210 |    10998      807     21 |  2.580 % |
0.03/0.09	c |      1318 |    1413    21760    57604 |    12098     1305     22 |  3.530 % |
0.09/0.11	c |      2077 |    1411    21760    57604 |    13308     2062     20 |  3.667 % |
0.09/0.14	c |      3216 |    1401    21470    56967 |    14639     3192     22 |  4.345 % |
0.19/0.20	c |      4924 |    1398    21268    56563 |    16103     4896     23 |  4.549 % |
0.29/0.30	c |      7486 |    1392    21161    56344 |    17713     7451     24 |  4.956 % |
0.39/0.49	c |     11330 |    1389    21107    56236 |    19485    11291     26 |  5.160 % |
0.69/0.73	c ===============================================================================
0.69/0.73	c restarts              : 62
0.69/0.73	c conflicts             : 15170          (20727 /sec)
0.69/0.73	c decisions             : 78577          (107362 /sec)
0.69/0.73	c propagations          : 953563         (1302881 /sec)
0.69/0.73	c conflict literals     : 463256         (14.20 % deleted)
0.69/0.73	c Memory used           : 8.93 MB
0.69/0.73	c CPU time              : 0.731888 s
0.69/0.73	c 
0.69/0.73	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1561769-1238768713/watcher-1561769-1238768713 -o /tmp/evaluation-result-1561769-1238768713/solver-1561769-1238768713 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1561769-1238768713.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: 1.00 1.00 1.00 3/81 15303
/proc/meminfo: memFree=1660496/2055920 swapFree=4176448/4192956
[pid=15303] ppid=15301 vsize=7748 CPUtime=0
/proc/15303/stat : 15303 (minisat) R 15301 15303 15117 0 -1 4194304 314 0 0 0 0 0 0 0 20 0 1 0 1149535558 7933952 298 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/15303/statm: 1937 299 63 219 0 1715 0

[startup+0.0362179 s]
/proc/loadavg: 1.00 1.00 1.00 3/81 15303
/proc/meminfo: memFree=1660496/2055920 swapFree=4176448/4192956
[pid=15303] ppid=15301 vsize=8568 CPUtime=0.03
/proc/15303/stat : 15303 (minisat) R 15301 15303 15117 0 -1 4194304 616 0 0 0 3 0 0 0 20 0 1 0 1149535558 8773632 600 1992294400 4194304 5092341 548682068848 18446744073709551615 4223147 0 0 4096 3 0 0 0 17 1 0 0
/proc/15303/statm: 2142 600 88 219 0 1920 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 8568

[startup+0.101225 s]
/proc/loadavg: 1.00 1.00 1.00 3/81 15303
/proc/meminfo: memFree=1660496/2055920 swapFree=4176448/4192956
[pid=15303] ppid=15301 vsize=8568 CPUtime=0.09
/proc/15303/stat : 15303 (minisat) R 15301 15303 15117 0 -1 4194304 748 0 0 0 9 0 0 0 20 0 1 0 1149535558 8773632 628 1992294400 4194304 5092341 548682068848 18446744073709551615 4240672 0 0 4096 3 0 0 0 17 1 0 0
/proc/15303/statm: 2142 628 102 219 0 1920 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8568

[startup+0.301248 s]
/proc/loadavg: 1.00 1.00 1.00 3/81 15303
/proc/meminfo: memFree=1660496/2055920 swapFree=4176448/4192956
[pid=15303] ppid=15301 vsize=8568 CPUtime=0.29
/proc/15303/stat : 15303 (minisat) R 15301 15303 15117 0 -1 4194304 911 0 0 0 29 0 0 0 22 0 1 0 1149535558 8773632 791 1992294400 4194304 5092341 548682068848 18446744073709551615 4241984 0 0 4096 3 0 0 0 17 1 0 0
/proc/15303/statm: 2142 791 103 219 0 1920 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8568

[startup+0.701293 s]
/proc/loadavg: 1.00 1.00 1.00 3/81 15303
/proc/meminfo: memFree=1660496/2055920 swapFree=4176448/4192956
[pid=15303] ppid=15301 vsize=9136 CPUtime=0.69
/proc/15303/stat : 15303 (minisat) R 15301 15303 15117 0 -1 4194304 1320 0 0 0 69 0 0 0 25 0 1 0 1149535558 9355264 1200 1992294400 4194304 5092341 548682068848 18446744073709551615 4241447 0 0 4096 3 0 0 0 17 1 0 0
/proc/15303/statm: 2284 1200 103 219 0 2062 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9136

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

Child status: 10
Real time (s): 0.740445
CPU time (s): 0.739886
CPU user time (s): 0.732888
CPU system time (s): 0.006998
CPU usage (%): 99.9245
Max. virtual memory (cumulated for all children) (KiB): 9136

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.732888
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1368
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= 2

runsolver used 0.007998 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node86 at 2009-04-03 16:25:13
IDJOB=1561769
IDBENCH=70921
IDSOLVER=546
FILE ID=node86/1561769-1238768713
PBS_JOBID= 9085509
Free space on /tmp= 66488 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/edgematching/explicit/em_7_3_6_exp.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1561769-1238768713/watcher-1561769-1238768713 -o /tmp/evaluation-result-1561769-1238768713/solver-1561769-1238768713 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1561769-1238768713.cnf

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

MD5SUM BENCH= 5b8699f429b7fdd3e23d69c762326321
RANDOM SEED=31023079

node86.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		: 3000.238
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		: 3000.238
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:       1660912 kB
Buffers:         50688 kB
Cached:         246644 kB
SwapCached:       8260 kB
Active:          95064 kB
Inactive:       214692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1660912 kB
SwapTotal:     4192956 kB
SwapFree:      4176448 kB
Dirty:            1456 kB
Writeback:           0 kB
Mapped:          19240 kB
Slab:            69444 kB
Committed_AS:  2910160 kB
PageTables:       2684 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= 66488 MiB
End job on node86 at 2009-04-03 16:25:14