Trace number 1719883

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)UNSAT 1.62275 1.62424

General information on the benchmark

Namehoons-vbmc-lucky7.cnf
MD5SUMe05028f569e580a3335aeab2d092cf1f
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.14183
Satisfiable
(Un)Satisfiability was proved
Number of variables8503
Number of clauses25116
Sum of the clauses size58576
Maximum clause length3
Minimum clause length1
Number of clauses of size 121
Number of clauses of size 216730
Number of clauses of size 38365
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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 |                                                                             |
0.00/0.02	c |  Number of variables:          8503                                         |
0.00/0.02	c |  Number of clauses:           25054                                         |
0.00/0.02	c |  Parse time:                   0.02 s                                       |
0.09/0.12	c |  Simplification time:          0.10 s                                       |
0.09/0.12	c |                                                                             |
0.09/0.12	c ============================[ Search Statistics ]==============================
0.09/0.12	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.12	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.12	c ===============================================================================
0.09/0.12	c |       100 |    1819    10196    33892 |     3738      100      8 |  3.458 % |
0.09/0.13	c |       250 |    1817    10196    33892 |     4112      248      8 |  3.481 % |
0.09/0.14	c |       475 |    1816    10196    33892 |     4523      472      8 |  3.493 % |
0.09/0.15	c |       812 |    1814    10155    33726 |     4975      805      9 |  3.516 % |
0.09/0.17	c |      1318 |    1776     9936    33084 |     5473     1295     10 |  3.963 % |
0.19/0.20	c |      2077 |    1773     9897    32939 |     6020     2036     12 |  3.999 % |
0.19/0.25	c |      3216 |    1761     9818    32683 |     6623     3159     13 |  4.140 % |
0.29/0.33	c |      4924 |    1755     9740    32415 |     7285     4824     13 |  4.210 % |
0.39/0.47	c |      7486 |    1751     9704    32261 |     8013     6552     12 |  4.257 % |
0.59/0.69	c |     11330 |    1746     9667    32138 |     8815     6174     13 |  4.316 % |
1.10/1.13	c |     17096 |    1744     9650    32061 |     9696     7278     15 |  4.340 % |
1.59/1.62	c ===============================================================================
1.59/1.62	c restarts              : 85
1.59/1.62	c conflicts             : 23631          (14616 /sec)
1.59/1.62	c decisions             : 44452          (27495 /sec)
1.59/1.62	c propagations          : 3218856        (1990937 /sec)
1.59/1.62	c conflict literals     : 354027         (32.92 % deleted)
1.59/1.62	c Memory used           : 20.00 MB
1.59/1.62	c CPU time              : 1.61675 s
1.59/1.62	c 
1.59/1.62	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1719883-1240650226/watcher-1719883-1240650226 -o /tmp/evaluation-result-1719883-1240650226/solver-1719883-1240650226 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1719883-1240650226.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: 0.93 0.97 0.99 3/64 29941
/proc/meminfo: memFree=1227696/2055920 swapFree=4192956/4192956
[pid=29941] ppid=29939 vsize=8188 CPUtime=0
/proc/29941/stat : 29941 (minisat) R 29939 29941 29847 0 -1 4194304 395 0 0 0 0 0 0 0 18 0 1 0 93048525 8384512 379 1992294400 4194304 5092341 548682068848 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 1 0 0
/proc/29941/statm: 2047 380 63 219 0 1825 0

[startup+0.0320969 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 29941
/proc/meminfo: memFree=1227696/2055920 swapFree=4192956/4192956
[pid=29941] ppid=29939 vsize=9672 CPUtime=0.02
/proc/29941/stat : 29941 (minisat) R 29939 29941 29847 0 -1 4194304 886 0 0 0 2 0 0 0 18 0 1 0 93048525 9904128 870 1992294400 4194304 5092341 548682068848 18446744073709551615 4492395 0 0 4096 3 0 0 0 17 1 0 0
/proc/29941/statm: 2418 870 88 219 0 2196 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 9672

[startup+0.101106 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 29941
/proc/meminfo: memFree=1227696/2055920 swapFree=4192956/4192956
[pid=29941] ppid=29939 vsize=10280 CPUtime=0.09
/proc/29941/stat : 29941 (minisat) R 29939 29941 29847 0 -1 4194304 1140 0 0 0 9 0 0 0 18 0 1 0 93048525 10526720 1124 1992294400 4194304 5092341 548682068848 18446744073709551615 4219530 0 0 4096 3 0 0 0 17 1 0 0
/proc/29941/statm: 2570 1124 88 219 0 2348 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10280

[startup+0.301133 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 29941
/proc/meminfo: memFree=1227696/2055920 swapFree=4192956/4192956
[pid=29941] ppid=29939 vsize=10088 CPUtime=0.29
/proc/29941/stat : 29941 (minisat) R 29939 29941 29847 0 -1 4194304 1266 0 0 0 29 0 0 0 19 0 1 0 93048525 10330112 980 1992294400 4194304 5092341 548682068848 18446744073709551615 4250026 0 0 4096 3 0 0 0 17 1 0 0
/proc/29941/statm: 2522 980 102 219 0 2300 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10088

[startup+0.701187 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 29941
/proc/meminfo: memFree=1227696/2055920 swapFree=4192956/4192956
[pid=29941] ppid=29939 vsize=10092 CPUtime=0.69
/proc/29941/stat : 29941 (minisat) R 29939 29941 29847 0 -1 4194304 1452 0 0 0 69 0 0 0 22 0 1 0 93048525 10334208 985 1992294400 4194304 5092341 548682068848 18446744073709551615 4241984 0 0 4096 3 0 0 0 17 1 0 0
/proc/29941/statm: 2523 985 102 219 0 2301 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10092

[startup+1.50129 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 29942
/proc/meminfo: memFree=1223400/2055920 swapFree=4192956/4192956
[pid=29941] ppid=29939 vsize=20476 CPUtime=1.49
/proc/29941/stat : 29941 (minisat) R 29939 29941 29847 0 -1 4194304 1870 0 0 0 149 0 0 0 25 0 1 0 93048525 20967424 1403 1992294400 4194304 5092341 548682068848 18446744073709551615 4248257 0 0 4096 3 0 0 0 17 1 0 0
/proc/29941/statm: 5119 1403 102 219 0 4897 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20476

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

[startup+1.60131 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 29942
/proc/meminfo: memFree=1223400/2055920 swapFree=4192956/4192956
[pid=29941] ppid=29939 vsize=20476 CPUtime=1.59
/proc/29941/stat : 29941 (minisat) R 29939 29941 29847 0 -1 4194304 1886 0 0 0 159 0 0 0 25 0 1 0 93048525 20967424 1419 1992294400 4194304 5092341 548682068848 18446744073709551615 4240633 0 0 4096 3 0 0 0 17 1 0 0
/proc/29941/statm: 5119 1419 102 219 0 4897 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 20476

Child status: 20
Real time (s): 1.62424
CPU time (s): 1.62275
CPU user time (s): 1.61675
CPU system time (s): 0.005999
CPU usage (%): 99.9083
Max. virtual memory (cumulated for all children) (KiB): 20476

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.61675
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1898
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= 4

runsolver used 0.003999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node71 at 2009-04-25 11:03:46
IDJOB=1719883
IDBENCH=69576
IDSOLVER=546
FILE ID=node71/1719883-1240650226
PBS_JOBID= 9186534
Free space on /tmp= 66472 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE08/cnf/hoons-vbmc-lucky7.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719883-1240650226/watcher-1719883-1240650226 -o /tmp/evaluation-result-1719883-1240650226/solver-1719883-1240650226 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1719883-1240650226.cnf

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

MD5SUM BENCH= e05028f569e580a3335aeab2d092cf1f
RANDOM SEED=1788025877

node71.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		: 3000.236
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		: 3000.236
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:       1228176 kB
Buffers:         86396 kB
Cached:         643108 kB
SwapCached:          0 kB
Active:         222756 kB
Inactive:       520564 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1228176 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1644 kB
Writeback:           0 kB
Mapped:          23604 kB
Slab:            70420 kB
Committed_AS:   212028 kB
PageTables:       1436 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= 66472 MiB
End job on node71 at 2009-04-25 11:03:47