Trace number 428693

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
minimarch 2007-04-26 (fixed)SAT 2.82157 2.82381

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
MD5SUM0a1b9434c65125233161905ac395e7f3
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.34864
Satisfiable
(Un)Satisfiability was proved
Number of variables2901
Number of clauses18243
Sum of the clauses size130564
Maximum clause length13
Minimum clause length1
Number of clauses of size 128
Number of clauses of size 2401
Number of clauses of size 32345
Number of clauses of size 4462
Number of clauses of size 5637
Number of clauses of size over 514370

Solver Data (download as text)

0.00/0.00	This is MiniMarch 1.1, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  2901                                                 |
0.00/0.00	|  Number of clauses:    18243                                                |
0.00/0.08	|  Parsing time:         0.08         s                                       |
0.29/0.33	============================[ Search Statistics ]==============================
0.29/0.33	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.29/0.33	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.29/0.33	===============================================================================
0.29/0.33	|         0 |    2334    12362    81597 |     4120        0    nan |  0.000 % |
0.29/0.35	|       100 |    2334    12362    81597 |     4532      100      8 |  1.689 % |
0.29/0.35	|       250 |    2334    12362    81597 |     4986      250     13 |  1.689 % |
0.29/0.37	|       477 |    2334    12362    81597 |     5484      477     14 |  1.689 % |
0.29/0.38	|       814 |    2334    12362    81597 |     6033      814     16 |  1.689 % |
0.39/0.41	|      1323 |    2334    12362    81597 |     6636     1323     19 |  1.689 % |
0.39/0.45	|      2082 |    2334    12362    81597 |     7300     2082     21 |  1.689 % |
0.49/0.51	|      3221 |    2334    12362    81597 |     8030     3221     22 |  1.689 % |
0.59/0.66	|      4930 |    2334    12362    81597 |     8833     4930     27 |  1.689 % |
0.99/1.05	|      7493 |    2334    12362    81597 |     9716     7493     35 |  1.689 % |
1.79/1.80	|     11340 |    2334    12362    81597 |    10687     6347     46 |  1.689 % |
2.79/2.81	===============================================================================
2.79/2.81	lookaheads            : 47539
2.79/2.81	variable balance      : 0.04
2.79/2.81	restarts              : 11
2.79/2.81	conflicts             : 16472          (5871 /sec)
2.79/2.81	decisions             : 79789          (1.91 % random) (28439 /sec)
2.79/2.81	decision = positive   : 39280
2.79/2.81	decision = negative   : 40508
2.79/2.81	propagations          : 1233321        (439597 /sec)
2.79/2.81	conflict literals     : 728374         (11.63 % deleted)
2.79/2.81	Memory used           : 5.70 MB
2.79/2.81	CPU time              : 2.80557 s
2.79/2.81	
2.79/2.82	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node3/watcher-428693-1177741617 -o ROOT/results/node3/solver-428693-1177741617 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428693-1177741617/minimarch_fixed /tmp/evaluation/428693-1177741617/instance-428693-1177741617.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: 0.98 0.98 0.99 3/77 32442
/proc/meminfo: memFree=1576672/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=2296 CPUtime=0
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 378 0 0 0 0 0 0 0 18 0 1 0 250199476 2351104 363 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134562547 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 574 363 51 132 0 439 0

[startup+0.106009 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 32442
/proc/meminfo: memFree=1576672/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=3976 CPUtime=0.09
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 827 0 0 0 9 0 0 0 18 0 1 0 250199476 4071424 812 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134528513 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 994 812 63 132 0 859 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3976

[startup+0.202025 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 32442
/proc/meminfo: memFree=1576672/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=4272 CPUtime=0.19
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 891 0 0 0 19 0 0 0 18 0 1 0 250199476 4374528 876 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523451 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 1068 876 63 132 0 933 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 4272

[startup+0.301041 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 32442
/proc/meminfo: memFree=1576672/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=4352 CPUtime=0.29
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 907 0 0 0 29 0 0 0 19 0 1 0 250199476 4456448 892 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523011 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 1088 892 63 132 0 953 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4352

[startup+0.701105 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 32442
/proc/meminfo: memFree=1576672/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=4108 CPUtime=0.69
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 917 0 0 0 69 0 0 0 23 0 1 0 250199476 4206592 858 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551296 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 1027 858 68 132 0 892 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4108

[startup+1.50123 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 32443
/proc/meminfo: memFree=1573080/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=5032 CPUtime=1.48
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 1126 0 0 0 148 0 0 0 25 0 1 0 250199476 5152768 1067 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134550993 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 1258 1067 68 132 0 1123 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 5032

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

[startup+1.60125 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 32443
/proc/meminfo: memFree=1573080/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=5032 CPUtime=1.59
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 1148 0 0 0 158 1 0 0 25 0 1 0 250199476 5152768 1089 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551287 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 1258 1089 68 132 0 1123 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 5032

[startup+2.40138 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 32443
/proc/meminfo: memFree=1572120/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=5432 CPUtime=2.39
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 1248 0 0 0 238 1 0 0 25 0 1 0 250199476 5562368 1189 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551502 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 1358 1189 68 132 0 1223 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 5432

[startup+2.80145 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 32443
/proc/meminfo: memFree=1572120/2055920 swapFree=4138856/4192956
[pid=32442] ppid=32440 vsize=5836 CPUtime=2.79
/proc/32442/stat : 32442 (minimarch_fixed) R 32440 32442 31652 0 -1 4194304 1328 0 0 0 278 1 0 0 25 0 1 0 250199476 5976064 1269 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134620909 0 0 4096 3 0 0 0 17 1 0 0
/proc/32442/statm: 1459 1269 68 132 0 1324 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 5836

Child status: 10
Real time (s): 2.82381
CPU time (s): 2.82157
CPU user time (s): 2.80657
CPU system time (s): 0.014997
CPU usage (%): 99.9207
Max. virtual memory (cumulated for all children) (KiB): 5836

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.80657
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1335
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= 59

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Sat Apr 28 06:26:57 UTC 2007

IDJOB= 428693
IDBENCH= 24596
IDSOLVER= 198
FILE ID= node3/428693-1177741617

PBS_JOBID= 4715463

Free space on /tmp= 66550 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/others/QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/428693-1177741617/minimarch_fixed /tmp/evaluation/428693-1177741617/instance-428693-1177741617.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-428693-1177741617 -o ROOT/results/node3/solver-428693-1177741617 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428693-1177741617/minimarch_fixed /tmp/evaluation/428693-1177741617/instance-428693-1177741617.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  0a1b9434c65125233161905ac395e7f3

RANDOM SEED= 458270116

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.270
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		: 3000.270
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:       1577016 kB
Buffers:         47428 kB
Cached:         362088 kB
SwapCached:      18000 kB
Active:         206880 kB
Inactive:       226960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1577016 kB
SwapTotal:     4192956 kB
SwapFree:      4138856 kB
Dirty:            3576 kB
Writeback:           0 kB
Mapped:          30196 kB
Slab:            30536 kB
Committed_AS:  6182484 kB
PageTables:       1780 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= 66550 MiB

End job on node3 on Sat Apr 28 06:27:00 UTC 2007