Trace number 1773812

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 4.50531 4.50722

General information on the benchmark

NameAPPLICATIONS/
bitverif/maxand/maxand064.cnf
MD5SUMb2d2617ddc348aef0d35df3c8f228dcb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.97355
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 |                                                                             |
0.00/0.04	c |  Number of variables:         14578                                         |
0.00/0.04	c |  Number of clauses:           42579                                         |
0.00/0.04	c |  Parse time:                   0.04 s                                       |
0.18/0.30	c |  Simplification time:          0.25 s                                       |
0.18/0.30	c |                                                                             |
0.18/0.30	c ============================[ Search Statistics ]==============================
0.18/0.30	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.18/0.30	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.18/0.30	c ===============================================================================
0.28/0.30	c |       100 |    1861    17223   111441 |     6315      100     17 |  0.123 % |
0.28/0.31	c |       250 |    1861    17223   111441 |     6946      250     24 |  0.123 % |
0.28/0.32	c |       475 |    1861    17223   111441 |     7641      475     25 |  0.123 % |
0.28/0.33	c |       812 |    1857    17223   111441 |     8405      811     21 |  0.151 % |
0.28/0.35	c |      1318 |    1857    17193   111303 |     9245     1267     26 |  0.151 % |
0.28/0.39	c |      2077 |    1857    17193   111303 |    10170     2026     26 |  0.151 % |
0.38/0.45	c |      3216 |    1857    17193   111303 |    11187     3165     39 |  0.151 % |
0.48/0.54	c |      4924 |    1857    17193   111303 |    12306     4873     41 |  0.151 % |
0.69/0.71	c |      7486 |    1857    17193   111303 |    13536     7435     52 |  0.151 % |
0.89/0.97	c |     11330 |    1856    17129   111175 |    14890    11277     60 |  0.158 % |
1.39/1.49	c |     17096 |    1854    17129   111175 |    16379     9328     77 |  0.171 % |
2.29/2.32	c |     25745 |    1854    16993   110896 |    18017     9756     68 |  0.171 % |
3.79/3.86	c |     38719 |    1841    16422   109535 |    19819    13615     79 |  0.261 % |
4.49/4.50	c ===============================================================================
4.49/4.50	c restarts              : 127
4.49/4.50	c conflicts             : 43098          (9660 /sec)
4.49/4.50	c decisions             : 154103         (34542 /sec)
4.49/4.50	c propagations          : 3627534        (813108 /sec)
4.49/4.50	c conflict literals     : 3393977        (29.15 % deleted)
4.49/4.50	c Memory used           : 20.13 MB
4.49/4.50	c CPU time              : 4.46132 s
4.49/4.50	c 
4.49/4.50	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-1773812-1241213825/watcher-1773812-1241213825 -o /tmp/evaluation-result-1773812-1241213825/solver-1773812-1241213825 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773812-1241213825.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/65 28633
/proc/meminfo: memFree=1711152/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=7904 CPUtime=0
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 405 0 0 0 0 0 0 0 18 0 1 0 149415631 8093696 389 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 1976 389 63 219 0 1754 0

[startup+0.0600141 s]
/proc/loadavg: 0.92 0.98 0.99 3/65 28633
/proc/meminfo: memFree=1711152/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=11564 CPUtime=0.05
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 1492 0 0 0 5 0 0 0 18 0 1 0 149415631 11841536 1435 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 2891 1435 88 219 0 2669 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 11564

[startup+0.101017 s]
/proc/loadavg: 0.92 0.98 0.99 3/65 28633
/proc/meminfo: memFree=1711152/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=12372 CPUtime=0.09
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 1772 0 0 0 9 0 0 0 18 0 1 0 149415631 12668928 1715 1992294400 4194304 5092341 548682068848 18446744073709551615 4495141 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 3093 1715 88 219 0 2871 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12372

[startup+0.301039 s]
/proc/loadavg: 0.92 0.98 0.99 3/65 28633
/proc/meminfo: memFree=1711152/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=12916 CPUtime=0.28
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 2491 0 0 0 28 0 0 0 19 0 1 0 149415631 13225984 1722 1992294400 4194304 5092341 548682068848 18446744073709551615 4352740 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 3229 1722 92 219 0 3007 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 12916

[startup+0.701084 s]
/proc/loadavg: 0.92 0.98 0.99 3/65 28633
/proc/meminfo: memFree=1711152/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=12916 CPUtime=0.69
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 2870 0 0 0 68 1 0 0 22 0 1 0 149415631 13225984 2101 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 3229 2101 103 219 0 3007 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12916

[startup+1.50118 s]
/proc/loadavg: 0.92 0.98 0.99 2/66 28634
/proc/meminfo: memFree=1702440/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=12824 CPUtime=1.49
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 4369 0 0 0 147 2 0 0 25 0 1 0 149415631 13131776 2415 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 3206 2415 103 219 0 2984 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12824

[startup+3.10136 s]
/proc/loadavg: 0.92 0.98 0.99 2/66 28634
/proc/meminfo: memFree=1694888/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=20608 CPUtime=3.09
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 6470 0 0 0 306 3 0 0 25 0 1 0 149415631 21102592 3027 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 5152 3027 103 219 0 4930 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 20608

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

[startup+3.90145 s]
/proc/loadavg: 0.93 0.98 0.99 2/66 28634
/proc/meminfo: memFree=1699496/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=20608 CPUtime=3.89
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 7790 0 0 0 386 3 0 0 25 0 1 0 149415631 21102592 4347 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 5152 4347 103 219 0 4930 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 20608

[startup+4.30149 s]
/proc/loadavg: 0.93 0.98 0.99 2/66 28634
/proc/meminfo: memFree=1694312/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=20608 CPUtime=4.3
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 7858 0 0 0 426 4 0 0 25 0 1 0 149415631 21102592 4415 1992294400 4194304 5092341 548682068848 18446744073709551615 4240636 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 5152 4415 103 219 0 4930 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 20608

[startup+4.50152 s]
/proc/loadavg: 0.93 0.98 0.99 2/66 28634
/proc/meminfo: memFree=1694312/2055920 swapFree=4178560/4192956
[pid=28633] ppid=28631 vsize=20608 CPUtime=4.49
/proc/28633/stat : 28633 (minisat) R 28631 28633 28596 0 -1 4194304 7858 0 0 0 445 4 0 0 25 0 1 0 149415631 21102592 4415 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/28633/statm: 5152 4415 103 219 0 4930 0
Current children cumulated CPU time (s) 4.49
Current children cumulated vsize (KiB) 20608

Child status: 20
Real time (s): 4.50722
CPU time (s): 4.50531
CPU user time (s): 4.46132
CPU system time (s): 0.043993
CPU usage (%): 99.9576
Max. virtual memory (cumulated for all children) (KiB): 20612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.46132
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= 7868
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= 8

runsolver used 0.008998 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node32 at 2009-05-01 23:37:05
IDJOB=1773812
IDBENCH=70803
IDSOLVER=608
FILE ID=node32/1773812-1241213825
PBS_JOBID= 9224736
Free space on /tmp= 66404 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/maxand/maxand064.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773812-1241213825/watcher-1773812-1241213825 -o /tmp/evaluation-result-1773812-1241213825/solver-1773812-1241213825 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773812-1241213825.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=1532747968

node32.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		: 3000.216
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		: 3000.216
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:       1712272 kB
Buffers:         60656 kB
Cached:         199864 kB
SwapCached:       7332 kB
Active:          28340 kB
Inactive:       240828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1712272 kB
SwapTotal:     4192956 kB
SwapFree:      4178560 kB
Dirty:            1752 kB
Writeback:           0 kB
Mapped:          14100 kB
Slab:            60240 kB
Committed_AS:   683236 kB
PageTables:       1488 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66404 MiB
End job on node32 at 2009-05-01 23:37:09