Trace number 1724379

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 2.92855 2.92975

General information on the benchmark

Namemanol-pipe-c9.cnf
MD5SUM7f47eb2c5986b40772da3e38cf0759b1
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.54061
Satisfiable
(Un)Satisfiability was proved
Number of variables15214
Number of clauses45082
Sum of the clauses size105190
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 230054
Number of clauses of size 315027
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 |                                                                             |
0.00/0.05	c |  Number of variables:         15214                                         |
0.00/0.05	c |  Number of clauses:           45081                                         |
0.00/0.05	c |  Parse time:                   0.04 s                                       |
0.19/0.24	c |  Simplification time:          0.19 s                                       |
0.19/0.24	c |                                                                             |
0.19/0.24	c ============================[ Search Statistics ]==============================
0.19/0.24	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.24	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.24	c ===============================================================================
0.19/0.25	c |       100 |    3074    18841    72169 |     6908      100     15 |  0.007 % |
0.19/0.26	c |       250 |    3074    18841    72169 |     7599      250     14 |  0.007 % |
0.19/0.27	c |       475 |    2534    18841    72169 |     8359      473     14 |  3.556 % |
0.19/0.29	c |       812 |    2534    14004    54270 |     9195      783     15 |  3.556 % |
0.29/0.32	c |      1318 |    2534    14004    54270 |    10114     1289     18 |  3.556 % |
0.29/0.35	c |      2077 |    2497    14001    54262 |    11125     2043     17 |  3.799 % |
0.39/0.42	c |      3216 |    2497    13562    52565 |    12238     3180     23 |  3.799 % |
0.49/0.53	c |      4924 |    2496    13557    52543 |    13462     4883     22 |  3.806 % |
0.59/0.66	c |      7486 |    2494    13539    52453 |    14808     7434     23 |  3.819 % |
0.79/0.88	c |     11330 |    2494    13539    52453 |    16289    11278     23 |  3.819 % |
1.29/1.32	c |     17096 |    2488    13516    52385 |    17918     8566     24 |  3.858 % |
1.89/1.97	c |     25745 |    2479    13422    52037 |    19710    17212     24 |  3.917 % |
2.89/2.92	c ===============================================================================
2.89/2.92	c restarts              : 126
2.89/2.92	c conflicts             : 36244          (12487 /sec)
2.89/2.92	c decisions             : 76128          (26228 /sec)
2.89/2.92	c propagations          : 4312130        (1485631 /sec)
2.89/2.92	c conflict literals     : 842296         (31.23 % deleted)
2.89/2.92	c Memory used           : 17.32 MB
2.89/2.92	c CPU time              : 2.90256 s
2.89/2.92	c 
2.89/2.92	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-1724379-1240694718/watcher-1724379-1240694718 -o /tmp/evaluation-result-1724379-1240694718/solver-1724379-1240694718 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1724379-1240694718.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: 0.99 0.99 1.00 2/64 19854
/proc/meminfo: memFree=1706800/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=7612 CPUtime=0
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 344 0 0 0 0 0 0 0 18 0 1 0 97499843 7794688 328 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 1903 328 63 219 0 1681 0

[startup+0.074712 s]
/proc/loadavg: 0.99 0.99 1.00 2/64 19854
/proc/meminfo: memFree=1706800/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=11776 CPUtime=0.06
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 1560 0 0 0 6 0 0 0 18 0 1 0 97499843 12058624 1503 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 2944 1503 88 219 0 2722 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 11776

[startup+0.101714 s]
/proc/loadavg: 0.99 0.99 1.00 2/64 19854
/proc/meminfo: memFree=1706800/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=12020 CPUtime=0.09
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 1692 0 0 0 9 0 0 0 18 0 1 0 97499843 12308480 1635 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 3005 1635 88 219 0 2783 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12020

[startup+0.301733 s]
/proc/loadavg: 0.99 0.99 1.00 2/64 19854
/proc/meminfo: memFree=1706800/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=12160 CPUtime=0.29
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 2127 0 0 0 28 1 0 0 19 0 1 0 97499843 12451840 1480 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 3040 1480 102 219 0 2818 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12160

[startup+0.701768 s]
/proc/loadavg: 0.99 0.99 1.00 2/64 19854
/proc/meminfo: memFree=1706800/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=12160 CPUtime=0.69
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 2312 0 0 0 68 1 0 0 23 0 1 0 97499843 12451840 1665 1992294400 4194304 5092341 548682068848 18446744073709551615 4240584 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 3040 1665 103 219 0 2818 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12160

[startup+1.50184 s]
/proc/loadavg: 0.99 0.99 1.00 2/65 19855
/proc/meminfo: memFree=1700072/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=12160 CPUtime=1.49
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 2923 0 0 0 148 1 0 0 25 0 1 0 97499843 12451840 1747 1992294400 4194304 5092341 548682068848 18446744073709551615 4240648 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 3040 1747 103 219 0 2818 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12160

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

[startup+2.30291 s]
/proc/loadavg: 0.99 0.99 1.00 2/65 19855
/proc/meminfo: memFree=1698984/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=17732 CPUtime=2.29
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 3424 0 0 0 227 2 0 0 25 0 1 0 97499843 18157568 2248 1992294400 4194304 5092341 548682068848 18446744073709551615 4262248 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 4433 2248 103 219 0 4211 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 17732

[startup+2.70295 s]
/proc/loadavg: 0.99 0.99 1.00 2/65 19855
/proc/meminfo: memFree=1698984/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=17732 CPUtime=2.69
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 3625 0 0 0 267 2 0 0 25 0 1 0 97499843 18157568 2449 1992294400 4194304 5092341 548682068848 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 4433 2449 103 219 0 4211 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 17732

[startup+2.90197 s]
/proc/loadavg: 0.99 0.99 1.00 2/65 19855
/proc/meminfo: memFree=1698984/2055920 swapFree=4192812/4192956
[pid=19854] ppid=19852 vsize=17732 CPUtime=2.89
/proc/19854/stat : 19854 (minisat) R 19852 19854 19672 0 -1 4194304 3652 0 0 0 287 2 0 0 25 0 1 0 97499843 18157568 2476 1992294400 4194304 5092341 548682068848 18446744073709551615 4244159 0 0 4096 3 0 0 0 17 1 0 0
/proc/19854/statm: 4433 2476 103 219 0 4211 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 17732

Child status: 20
Real time (s): 2.92975
CPU time (s): 2.92855
CPU user time (s): 2.90256
CPU system time (s): 0.025996
CPU usage (%): 99.9593
Max. virtual memory (cumulated for all children) (KiB): 17732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.90256
system time used= 0.025996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3665
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= 9

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node43 at 2009-04-25 23:25:18
IDJOB=1724379
IDBENCH=71771
IDSOLVER=546
FILE ID=node43/1724379-1240694718
PBS_JOBID= 9186760
Free space on /tmp= 66432 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE06/manol-pipe-c9.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1724379-1240694718/watcher-1724379-1240694718 -o /tmp/evaluation-result-1724379-1240694718/solver-1724379-1240694718 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1724379-1240694718.cnf

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

MD5SUM BENCH= 7f47eb2c5986b40772da3e38cf0759b1
RANDOM SEED=918892663

node43.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		: 3000.237
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		: 3000.237
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:       1707280 kB
Buffers:         35276 kB
Cached:         239784 kB
SwapCached:          0 kB
Active:         128344 kB
Inactive:       160588 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1707280 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1776 kB
Writeback:           0 kB
Mapped:          23644 kB
Slab:            45692 kB
Committed_AS:   386312 kB
PageTables:       1444 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= 66432 MiB
End job on node43 at 2009-04-25 23:25:21