Trace number 1553189

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 6.30804 6.31147

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor064.cnf
MD5SUM1a151a1e93387c74239b48070e3eed97
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72543
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
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 |                                                                             |
0.01/0.04	c |  Number of variables:         14578                                         |
0.01/0.04	c |  Number of clauses:           42579                                         |
0.01/0.04	c |  Parse time:                   0.04 s                                       |
0.19/0.28	c |  Simplification time:          0.23 s                                       |
0.19/0.28	c |                                                                             |
0.19/0.28	c ============================[ Search Statistics ]==============================
0.19/0.28	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.28	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.28	c ===============================================================================
0.19/0.29	c |       100 |    1838    17454   112368 |     6399      100     21 |  0.123 % |
0.19/0.29	c |       250 |    1838    17454   112368 |     7039      250     22 |  0.123 % |
0.29/0.30	c |       475 |    1838    17454   112368 |     7743      475     20 |  0.123 % |
0.29/0.31	c |       812 |    1838    17454   112368 |     8518      812     20 |  0.123 % |
0.29/0.33	c |      1318 |    1838    17454   112368 |     9369     1318     24 |  0.123 % |
0.29/0.36	c |      2077 |    1838    17454   112368 |    10306     2077     24 |  0.123 % |
0.39/0.42	c |      3216 |    1838    17454   112368 |    11337     3216     35 |  0.123 % |
0.49/0.52	c |      4924 |    1838    17454   112368 |    12471     4924     41 |  0.123 % |
0.59/0.66	c |      7486 |    1838    17454   112368 |    13718     7486     45 |  0.123 % |
0.89/0.94	c |     11330 |    1838    17454   112368 |    15090    11330     51 |  0.123 % |
1.39/1.40	c |     17096 |    1838    17454   112368 |    16599     9230     68 |  0.123 % |
2.10/2.12	c |     25745 |    1838    17454   112368 |    18259     9555     67 |  0.123 % |
3.39/3.40	c |     38719 |    1838    17454   112368 |    20085    13230     71 |  0.123 % |
5.78/5.89	c |     58180 |    1833    17222   111650 |    22093    12335     77 |  0.158 % |
6.28/6.30	c ===============================================================================
6.28/6.30	c restarts              : 190
6.28/6.30	c conflicts             : 61320          (9789 /sec)
6.28/6.30	c decisions             : 199563         (31858 /sec)
6.28/6.30	c propagations          : 5366282        (856680 /sec)
6.28/6.30	c conflict literals     : 5113937        (26.59 % deleted)
6.28/6.30	c Memory used           : 23.88 MB
6.28/6.30	c CPU time              : 6.26405 s
6.28/6.30	c 
6.28/6.30	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-1553189-1238712245/watcher-1553189-1238712245 -o /tmp/evaluation-result-1553189-1238712245/solver-1553189-1238712245 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1553189-1238712245.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 1.06 1.27 3/64 10529
/proc/meminfo: memFree=1122128/2055920 swapFree=4176444/4192956
[pid=10529] ppid=10527 vsize=7612 CPUtime=0
/proc/10529/stat : 10529 (minisat) R 10527 10529 10429 0 -1 4194304 358 0 0 0 0 0 0 0 20 0 1 0 1143889853 7794688 342 1992294400 4194304 5092341 548682068832 18446744073709551615 4501981 0 0 4096 3 0 0 0 17 1 0 0
/proc/10529/statm: 1903 342 63 219 0 1681 0

[startup+0.0219049 s]
/proc/loadavg: 1.00 1.06 1.27 3/64 10529
/proc/meminfo: memFree=1122128/2055920 swapFree=4176444/4192956
[pid=10529] ppid=10527 vsize=9332 CPUtime=0.01
/proc/10529/stat : 10529 (minisat) R 10527 10529 10429 0 -1 4194304 810 0 0 0 1 0 0 0 20 0 1 0 1143889853 9555968 794 1992294400 4194304 5092341 548682068832 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 1 0 0
/proc/10529/statm: 2333 794 63 219 0 2111 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 9332

[startup+0.101913 s]
/proc/loadavg: 1.00 1.06 1.27 3/64 10529
/proc/meminfo: memFree=1122128/2055920 swapFree=4176444/4192956
[pid=10529] ppid=10527 vsize=12336 CPUtime=0.09
/proc/10529/stat : 10529 (minisat) R 10527 10529 10429 0 -1 4194304 1776 0 0 0 9 0 0 0 20 0 1 0 1143889853 12632064 1719 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/10529/statm: 3084 1719 88 219 0 2862 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12336

[startup+0.301933 s]
/proc/loadavg: 1.00 1.06 1.27 3/64 10529
/proc/meminfo: memFree=1122128/2055920 swapFree=4176444/4192956
[pid=10529] ppid=10527 vsize=12900 CPUtime=0.29
/proc/10529/stat : 10529 (minisat) R 10527 10529 10429 0 -1 4194304 2472 0 0 0 28 1 0 0 22 0 1 0 1143889853 13209600 1708 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/10529/statm: 3225 1708 102 219 0 3003 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12900

[startup+0.701974 s]
/proc/loadavg: 1.00 1.06 1.27 3/64 10529
/proc/meminfo: memFree=1122128/2055920 swapFree=4176444/4192956
[pid=10529] ppid=10527 vsize=12900 CPUtime=0.69
/proc/10529/stat : 10529 (minisat) R 10527 10529 10429 0 -1 4194304 2850 0 0 0 68 1 0 0 25 0 1 0 1143889853 13209600 2086 1992294400 4194304 5092341 548682068832 18446744073709551615 4240633 0 0 4096 3 0 0 0 17 1 0 0
/proc/10529/statm: 3225 2086 103 219 0 3003 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12900

[startup+1.50105 s]
/proc/loadavg: 1.00 1.06 1.27 2/65 10530
/proc/meminfo: memFree=1113096/2055920 swapFree=4176444/4192956
[pid=10529] ppid=10527 vsize=12768 CPUtime=1.49
/proc/10529/stat : 10529 (minisat) R 10527 10529 10429 0 -1 4194304 4219 0 0 0 147 2 0 0 25 0 1 0 1143889853 13074432 2437 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/10529/statm: 3192 2437 103 219 0 2970 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12768

[startup+3.10122 s]
/proc/loadavg: 1.00 1.06 1.27 2/65 10530
/proc/meminfo: memFree=1110792/2055920 swapFree=4176444/4192956
[pid=10529] ppid=10527 vsize=20552 CPUtime=3.09
/proc/10529/stat : 10529 (minisat) R 10527 10529 10429 0 -1 4194304 6894 0 0 0 306 3 0 0 25 0 1 0 1143889853 21045248 3768 1992294400 4194304 5092341 548682068832 18446744073709551615 4241396 0 0 4096 3 0 0 0 17 1 0 0
/proc/10529/statm: 5138 3768 103 219 0 4916 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 20552

[startup+6.30154 s]
/proc/loadavg: 1.00 1.06 1.27 2/65 10530
/proc/meminfo: memFree=1099208/2055920 swapFree=4176444/4192956
[pid=10529] ppid=10527 vsize=24444 CPUtime=6.28
/proc/10529/stat : 10529 (minisat) R 10527 10529 10429 0 -1 4194304 8885 0 0 0 625 3 0 0 25 0 1 0 1143889853 25030656 5759 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/10529/statm: 6111 5759 103 219 0 5889 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 24444

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

Child status: 20
Real time (s): 6.31147
CPU time (s): 6.30804
CPU user time (s): 6.26405
CPU system time (s): 0.043993
CPU usage (%): 99.9457
Max. virtual memory (cumulated for all children) (KiB): 24444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.26405
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8895
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= 18

runsolver used 0.005999 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-03 00:44:05
IDJOB=1553189
IDBENCH=70756
IDSOLVER=546
FILE ID=node27/1553189-1238712245
PBS_JOBID= 9085299
Free space on /tmp= 65560 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor064.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553189-1238712245/watcher-1553189-1238712245 -o /tmp/evaluation-result-1553189-1238712245/solver-1553189-1238712245 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1553189-1238712245.cnf

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

MD5SUM BENCH= 1a151a1e93387c74239b48070e3eed97
RANDOM SEED=1075342381

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:       1122544 kB
Buffers:         99092 kB
Cached:         728496 kB
SwapCached:       9492 kB
Active:          82876 kB
Inactive:       755804 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1122544 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            1552 kB
Writeback:           0 kB
Mapped:          16788 kB
Slab:            80604 kB
Committed_AS:  3116400 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65560 MiB
End job on node27 at 2009-04-03 00:44:11