Trace number 1797974

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
minisat2-core 070721UNSAT 2.31665 2.31804

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor032.cnf
MD5SUM93c9f18c75548b864ec69c2789cae658
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.880865
Satisfiable
(Un)Satisfiability was proved
Number of variables4210
Number of clauses12053
Sum of the clauses size28121
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28034
Number of clauses of size 34017
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	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  4210                                                 |
0.00/0.00	|  Number of clauses:    12053                                                |
0.00/0.00	|  Parsing time:         0.01         s                                       |
0.00/0.00	============================[ Search Statistics ]==============================
0.00/0.00	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	===============================================================================
0.00/0.00	|         0 |    4192    12009    28027 |     4003        0    nan |  0.000 % |
0.00/0.02	|       100 |    4192    12009    28027 |     4403      100      9 |  0.428 % |
0.00/0.03	|       250 |    4192    12009    28027 |     4843      250     13 |  0.428 % |
0.00/0.04	|       477 |    4192    12009    28027 |     5327      477     19 |  0.428 % |
0.00/0.06	|       815 |    4192    12009    28027 |     5860      815     19 |  0.428 % |
0.10/0.11	|      1322 |    4191    11976    27961 |     6446     1320     22 |  0.451 % |
0.10/0.17	|      2084 |    4191    11976    27961 |     7091     2082     26 |  0.451 % |
0.20/0.28	|      3225 |    4191    11976    27961 |     7800     3223     31 |  0.451 % |
0.39/0.45	|      4934 |    4191    11976    27961 |     8580     4932     40 |  0.451 % |
0.79/0.80	|      7496 |    4191    11976    27961 |     9438     7494     47 |  0.451 % |
1.29/1.36	|     11340 |    4191    11976    27961 |    10382     6365     68 |  0.451 % |
2.19/2.23	|     17106 |    4191    11976    27961 |    11421     6883     61 |  0.451 % |
2.29/2.31	===============================================================================
2.29/2.31	restarts              : 12
2.29/2.31	conflicts             : 17838          (7730 /sec)
2.29/2.31	decisions             : 49620          (1.72 % random) (21502 /sec)
2.29/2.31	propagations          : 5464350        (2367929 /sec)
2.29/2.31	conflict literals     : 1106359        (17.89 % deleted)
2.29/2.31	Memory used           : 6.18 MB
2.29/2.31	CPU time              : 2.30765 s
2.29/2.31	
2.29/2.31	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-1797974-1242078991/watcher-1797974-1242078991 -o /tmp/evaluation-result-1797974-1242078991/solver-1797974-1242078991 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1797974-1242078991.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 2431
/proc/meminfo: memFree=1939576/2055920 swapFree=4176436/4192956
[pid=2431] ppid=2429 vsize=2296 CPUtime=0
/proc/2431/stat : 2431 (minisat_static) R 2429 2431 2008 0 -1 4194304 229 0 0 0 0 0 0 0 18 0 1 0 235926906 2351104 214 1992294400 134512640 135213614 4294956256 18446744073709551615 134544745 0 0 4096 3 0 0 0 17 1 0 0
/proc/2431/statm: 574 214 58 171 0 400 0

[startup+0.0840009 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 2431
/proc/meminfo: memFree=1939576/2055920 swapFree=4176436/4192956
[pid=2431] ppid=2429 vsize=2764 CPUtime=0.08
/proc/2431/stat : 2431 (minisat_static) R 2429 2431 2008 0 -1 4194304 364 0 0 0 8 0 0 0 18 0 1 0 235926906 2830336 349 1992294400 134512640 135213614 4294956256 18446744073709551615 134539358 0 0 4096 3 0 0 0 17 1 0 0
/proc/2431/statm: 691 349 78 171 0 517 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2764

[startup+0.103002 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 2431
/proc/meminfo: memFree=1939576/2055920 swapFree=4176436/4192956
[pid=2431] ppid=2429 vsize=2764 CPUtime=0.1
/proc/2431/stat : 2431 (minisat_static) R 2429 2431 2008 0 -1 4194304 372 0 0 0 10 0 0 0 18 0 1 0 235926906 2830336 357 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/2431/statm: 691 357 78 171 0 517 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2764

[startup+0.302024 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 2431
/proc/meminfo: memFree=1939576/2055920 swapFree=4176436/4192956
[pid=2431] ppid=2429 vsize=3160 CPUtime=0.29
/proc/2431/stat : 2431 (minisat_static) R 2429 2431 2008 0 -1 4194304 477 0 0 0 29 0 0 0 19 0 1 0 235926906 3235840 462 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/2431/statm: 790 462 78 171 0 616 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3160

[startup+0.702067 s]
/proc/loadavg: 0.93 0.97 0.99 3/64 2431
/proc/meminfo: memFree=1939576/2055920 swapFree=4176436/4192956
[pid=2431] ppid=2429 vsize=4216 CPUtime=0.69
/proc/2431/stat : 2431 (minisat_static) R 2429 2431 2008 0 -1 4194304 717 0 0 0 69 0 0 0 23 0 1 0 235926906 4317184 702 1992294400 134512640 135213614 4294956256 18446744073709551615 134526959 0 0 4096 3 0 0 0 17 1 0 0
/proc/2431/statm: 1054 702 78 171 0 880 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4216

[startup+1.50115 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 2432
/proc/meminfo: memFree=1936304/2055920 swapFree=4176436/4192956
[pid=2431] ppid=2429 vsize=5272 CPUtime=1.49
/proc/2431/stat : 2431 (minisat_static) R 2429 2431 2008 0 -1 4194304 989 0 0 0 149 0 0 0 25 0 1 0 235926906 5398528 974 1992294400 134512640 135213614 4294956256 18446744073709551615 134526939 0 0 4096 3 0 0 0 17 1 0 0
/proc/2431/statm: 1318 974 78 171 0 1144 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5272

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

[startup+1.9012 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 2432
/proc/meminfo: memFree=1936304/2055920 swapFree=4176436/4192956
[pid=2431] ppid=2429 vsize=5932 CPUtime=1.89
/proc/2431/stat : 2431 (minisat_static) R 2429 2431 2008 0 -1 4194304 1169 0 0 0 189 0 0 0 25 0 1 0 235926906 6074368 1154 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/2431/statm: 1483 1154 78 171 0 1309 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 5932

[startup+2.30124 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 2432
/proc/meminfo: memFree=1934832/2055920 swapFree=4176436/4192956
[pid=2431] ppid=2429 vsize=6328 CPUtime=2.29
/proc/2431/stat : 2431 (minisat_static) R 2429 2431 2008 0 -1 4194304 1247 0 0 0 229 0 0 0 25 0 1 0 235926906 6479872 1232 1992294400 134512640 135213614 4294956256 18446744073709551615 134527003 0 0 4096 3 0 0 0 17 1 0 0
/proc/2431/statm: 1582 1232 78 171 0 1408 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 6328

Child status: 20
Real time (s): 2.31804
CPU time (s): 2.31665
CPU user time (s): 2.30765
CPU system time (s): 0.008998
CPU usage (%): 99.9398
Max. virtual memory (cumulated for all children) (KiB): 6328

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.30765
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1259
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= 12

runsolver used 0.005999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node47 at 2009-05-11 23:56:31
IDJOB=1797974
IDBENCH=70757
IDSOLVER=651
FILE ID=node47/1797974-1242078991
PBS_JOBID= 9277602
Free space on /tmp= 66228 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1797974-1242078991/watcher-1797974-1242078991 -o /tmp/evaluation-result-1797974-1242078991/solver-1797974-1242078991 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1797974-1242078991.cnf

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

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED=1416911564

node47.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		: 3000.212
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		: 3000.212
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:       1939992 kB
Buffers:          2864 kB
Cached:          39620 kB
SwapCached:      10284 kB
Active:          28248 kB
Inactive:        26368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1939992 kB
SwapTotal:     4192956 kB
SwapFree:      4176436 kB
Dirty:            1256 kB
Writeback:           0 kB
Mapped:          14512 kB
Slab:            47236 kB
Committed_AS:   852496 kB
PageTables:       1448 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= 66228 MiB
End job on node47 at 2009-05-11 23:56:34