Trace number 1720143

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 16.1565 16.1625

General information on the benchmark

Namevelev-engi-uns-1.0-4nd.cnf
MD5SUM700f8e86139a93fca212e22efa0f7d2b
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.1565
Satisfiable
(Un)Satisfiability was proved
Number of variables7000
Number of clauses67586
Sum of the clauses size190944
Maximum clause length58
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 256649
Number of clauses of size 35901
Number of clauses of size 4437
Number of clauses of size 5591
Number of clauses of size over 54007

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 |                                                                             |
0.00/0.06	c |  Number of variables:          7000                                         |
0.00/0.06	c |  Number of clauses:           67553                                         |
0.00/0.06	c |  Parse time:                   0.06 s                                       |
0.29/0.31	c |  Simplification time:          0.24 s                                       |
0.29/0.31	c |                                                                             |
0.29/0.31	c ============================[ Search Statistics ]==============================
0.29/0.31	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.29/0.31	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.29/0.31	c ===============================================================================
0.29/0.32	c |       100 |    5069    62152   194351 |    22789       99     21 |  1.929 % |
0.29/0.34	c |       250 |    5069    62152   194351 |    25067      249     23 |  1.929 % |
0.29/0.36	c |       475 |    5068    61448   192551 |    27574      473     23 |  1.943 % |
0.29/0.39	c |       812 |    5068    61448   192551 |    30332      810     27 |  1.943 % |
0.39/0.44	c |      1318 |    5068    61448   192551 |    33365     1316     29 |  1.943 % |
0.49/0.52	c |      2077 |    5068    61448   192551 |    36702     2075     28 |  1.943 % |
0.59/0.64	c |      3216 |    5068    61448   192551 |    40372     3214     31 |  1.943 % |
0.79/0.81	c |      4924 |    5068    61448   192551 |    44409     4922     33 |  1.943 % |
0.99/1.05	c |      7486 |    5068    61448   192551 |    48850     7484     32 |  1.943 % |
1.39/1.48	c |     11330 |    5068    61448   192551 |    53735    11328     32 |  1.943 % |
2.20/2.27	c |     17096 |    5068    61448   192551 |    59108    17094     32 |  1.943 % |
3.39/3.50	c |     25745 |    5067    61432   192513 |    65019    25742     33 |  1.957 % |
5.39/5.46	c |     38719 |    5067    61432   192513 |    71521    38716     34 |  1.957 % |
9.19/9.22	c |     58180 |    5067    61432   192513 |    78674    58177     35 |  1.957 % |
15.99/16.04	c |     87372 |    4707    51146   165663 |    86541    16440     31 |  7.100 % |
16.09/16.16	c ===============================================================================
16.09/16.16	c restarts              : 254
16.09/16.16	c conflicts             : 87813          (5454 /sec)
16.09/16.16	c decisions             : 143806         (8931 /sec)
16.09/16.16	c propagations          : 27082038       (1681952 /sec)
16.09/16.16	c conflict literals     : 3172073        (54.59 % deleted)
16.09/16.16	c Memory used           : 14.43 MB
16.09/16.16	c CPU time              : 16.1016 s
16.09/16.16	c 
16.09/16.16	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-1720143-1240652996/watcher-1720143-1240652996 -o /tmp/evaluation-result-1720143-1240652996/solver-1720143-1240652996 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1720143-1240652996.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: 1.06 1.55 1.58 3/64 22201
/proc/meminfo: memFree=1866752/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=7468 CPUtime=0
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 418 0 0 0 0 0 0 0 18 0 1 0 93333606 7647232 402 1992294400 4194304 5092341 548682068832 18446744073709551615 4515551 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 1867 402 63 219 0 1645 0

[startup+0.09555 s]
/proc/loadavg: 1.06 1.55 1.58 3/64 22201
/proc/meminfo: memFree=1866752/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=11324 CPUtime=0.08
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 1753 0 0 0 8 0 0 0 18 0 1 0 93333606 11595776 1635 1992294400 4194304 5092341 548682068832 18446744073709551615 4220396 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 2831 1635 88 219 0 2609 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 11324

[startup+0.101551 s]
/proc/loadavg: 1.06 1.55 1.58 3/64 22201
/proc/meminfo: memFree=1866752/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=11324 CPUtime=0.09
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 1753 0 0 0 9 0 0 0 18 0 1 0 93333606 11595776 1635 1992294400 4194304 5092341 548682068832 18446744073709551615 4219753 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 2831 1635 88 219 0 2609 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11324

[startup+0.301587 s]
/proc/loadavg: 1.06 1.55 1.58 3/64 22201
/proc/meminfo: memFree=1866752/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=16720 CPUtime=0.29
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 2059 0 0 0 28 1 0 0 19 0 1 0 93333606 17121280 1850 1992294400 4194304 5092341 548682068832 18446744073709551615 4262248 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 4180 1851 89 219 0 3958 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16720

[startup+0.701656 s]
/proc/loadavg: 1.06 1.55 1.58 3/64 22201
/proc/meminfo: memFree=1866752/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=11528 CPUtime=0.69
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 2381 0 0 0 68 1 0 0 22 0 1 0 93333606 11804672 1759 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 2882 1759 101 219 0 2660 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11528

[startup+1.5018 s]
/proc/loadavg: 1.06 1.55 1.58 2/65 22202
/proc/meminfo: memFree=1859640/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=11528 CPUtime=1.49
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 2631 0 0 0 148 1 0 0 25 0 1 0 93333606 11804672 2009 1992294400 4194304 5092341 548682068832 18446744073709551615 4241428 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 2882 2009 101 219 0 2660 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11528

[startup+3.10107 s]
/proc/loadavg: 1.06 1.55 1.58 2/65 22202
/proc/meminfo: memFree=1858424/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=11664 CPUtime=3.09
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 3101 0 0 0 307 2 0 0 25 0 1 0 93333606 11943936 2479 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 2916 2479 101 219 0 2694 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11664

[startup+6.30164 s]
/proc/loadavg: 1.06 1.54 1.57 2/65 22202
/proc/meminfo: memFree=1853880/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=15524 CPUtime=6.29
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 4154 0 0 0 627 2 0 0 25 0 1 0 93333606 15896576 3532 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 3881 3532 101 219 0 3659 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 15524

[startup+12.7018 s]
/proc/loadavg: 1.05 1.53 1.57 2/65 22202
/proc/meminfo: memFree=1847032/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=26876 CPUtime=12.69
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 5737 0 0 0 1265 4 0 0 25 0 1 0 93333606 27521024 5115 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 6719 5115 101 219 0 6497 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 26876

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

[startup+14.305 s]
/proc/loadavg: 1.05 1.52 1.57 2/65 22202
/proc/meminfo: memFree=1845112/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=27012 CPUtime=14.29
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 6028 0 0 0 1425 4 0 0 25 0 1 0 93333606 27660288 5406 1992294400 4194304 5092341 548682068832 18446744073709551615 4252600 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 6753 5406 101 219 0 6531 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 27012

[startup+15.1012 s]
/proc/loadavg: 1.05 1.52 1.57 2/65 22202
/proc/meminfo: memFree=1845112/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=14776 CPUtime=15.09
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 6962 0 0 0 1504 5 0 0 25 0 1 0 93333606 15130624 3083 1992294400 4194304 5092341 548682068832 18446744073709551615 4241025 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 3694 3083 101 219 0 3472 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 14776

[startup+15.9013 s]
/proc/loadavg: 1.05 1.52 1.57 2/65 22202
/proc/meminfo: memFree=1854200/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=14776 CPUtime=15.89
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 7150 0 0 0 1584 5 0 0 25 0 1 0 93333606 15130624 3271 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 3694 3271 101 219 0 3472 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 14776

[startup+16.1014 s]
/proc/loadavg: 1.05 1.52 1.57 2/65 22202
/proc/meminfo: memFree=1854200/2055920 swapFree=4181848/4192956
[pid=22201] ppid=22199 vsize=14776 CPUtime=16.09
/proc/22201/stat : 22201 (minisat) R 22199 22201 21893 0 -1 4194304 7195 0 0 0 1604 5 0 0 25 0 1 0 93333606 15130624 3316 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/22201/statm: 3694 3316 101 219 0 3472 0
Current children cumulated CPU time (s) 16.09
Current children cumulated vsize (KiB) 14776

Child status: 20
Real time (s): 16.1625
CPU time (s): 16.1565
CPU user time (s): 16.1016
CPU system time (s): 0.054991
CPU usage (%): 99.9631
Max. virtual memory (cumulated for all children) (KiB): 27012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.1016
system time used= 0.054991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7208
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= 22

runsolver used 0.015997 second user time and 0.043993 second system time

The end

Launcher Data 

Begin job on node4 at 2009-04-25 11:49:56
IDJOB=1720143
IDBENCH=69594
IDSOLVER=546
FILE ID=node4/1720143-1240652996
PBS_JOBID= 9186517
Free space on /tmp= 66204 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE08/cnf/velev-engi-uns-1.0-4nd.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1720143-1240652996/watcher-1720143-1240652996 -o /tmp/evaluation-result-1720143-1240652996/solver-1720143-1240652996 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1720143-1240652996.cnf

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

MD5SUM BENCH= 700f8e86139a93fca212e22efa0f7d2b
RANDOM SEED=406630981

node4.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		: 3000.265
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		: 3000.265
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:       1867168 kB
Buffers:          6780 kB
Cached:         124076 kB
SwapCached:       5212 kB
Active:          31976 kB
Inactive:       107108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1867168 kB
SwapTotal:     4192956 kB
SwapFree:      4181848 kB
Dirty:            2012 kB
Writeback:           0 kB
Mapped:          13828 kB
Slab:            35540 kB
Committed_AS:   424260 kB
PageTables:       1476 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= 66204 MiB
End job on node4 at 2009-04-25 11:50:13