Trace number 1797854

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 2.15967 2.15983

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.84572
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
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:  23891                                                |
0.00/0.00	|  Number of clauses:    69895                                                |
0.02/0.04	|  Parsing time:         0.04         s                                       |
0.02/0.04	============================[ Search Statistics ]==============================
0.02/0.04	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.02/0.04	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.02/0.04	===============================================================================
0.02/0.04	|         0 |   23890    69892   163082 |    23297        0    nan |  0.000 % |
0.02/0.07	|       101 |   23877    69892   163082 |    25627       97      7 |  0.059 % |
0.09/0.14	|       251 |   23877    69892   163082 |    28189      247      8 |  0.059 % |
0.19/0.20	|       477 |   23876    69844   162977 |    31008      472     10 |  0.134 % |
0.29/0.31	|       817 |   23859    69799   162878 |    34109      810     14 |  0.134 % |
0.39/0.42	|      1324 |   23859    69799   162878 |    37520     1317     13 |  0.134 % |
0.49/0.55	|      2088 |   23859    69799   162878 |    41272     2081     16 |  0.134 % |
0.69/0.74	|      3227 |   23859    69799   162878 |    45399     3220     21 |  0.134 % |
0.89/0.92	|      4935 |   23859    69799   162878 |    49939     4928     21 |  0.134 % |
1.29/1.31	|      7497 |   23383    67890   158625 |    54933     7138     21 |  2.867 % |
1.79/1.85	|     11344 |   23205    66906   156456 |    60427    10842     22 |  2.871 % |
2.10/2.15	===============================================================================
2.10/2.15	restarts              : 11
2.10/2.15	conflicts             : 13284          (6188 /sec)
2.10/2.15	decisions             : 54035          (1.53 % random) (25172 /sec)
2.10/2.15	propagations          : 6243381        (2908399 /sec)
2.10/2.15	conflict literals     : 263925         (37.24 % deleted)
2.10/2.15	Memory used           : 7.80 MB
2.10/2.15	CPU time              : 2.14667 s
2.10/2.15	
2.10/2.15	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-1797854-1242089750/watcher-1797854-1242089750 -o /tmp/evaluation-result-1797854-1242089750/solver-1797854-1242089750 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1797854-1242089750.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: 1.02 0.98 0.98 2/64 11589
/proc/meminfo: memFree=1188864/2055920 swapFree=4181384/4192956
[pid=11589] ppid=11587 vsize=2164 CPUtime=0
/proc/11589/stat : 11589 (minisat_static) R 11587 11589 11409 0 -1 4194304 409 0 0 0 0 0 0 0 18 0 1 0 237002983 2215936 394 1992294400 134512640 135213614 4294956256 18446744073709551615 134524639 0 0 4096 3 0 0 0 17 1 0 0
/proc/11589/statm: 541 394 58 171 0 367 0

[startup+0.0291469 s]
/proc/loadavg: 1.02 0.98 0.98 2/64 11589
/proc/meminfo: memFree=1188864/2055920 swapFree=4181384/4192956
[pid=11589] ppid=11587 vsize=4772 CPUtime=0.02
/proc/11589/stat : 11589 (minisat_static) R 11587 11589 11409 0 -1 4194304 1006 0 0 0 2 0 0 0 18 0 1 0 237002983 4886528 991 1992294400 134512640 135213614 4294956256 18446744073709551615 134524828 0 0 4096 3 0 0 0 17 1 0 0
/proc/11589/statm: 1193 992 58 171 0 1019 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4772

[startup+0.10116 s]
/proc/loadavg: 1.02 0.98 0.98 2/64 11589
/proc/meminfo: memFree=1188864/2055920 swapFree=4181384/4192956
[pid=11589] ppid=11587 vsize=6396 CPUtime=0.09
/proc/11589/stat : 11589 (minisat_static) R 11587 11589 11409 0 -1 4194304 1415 0 0 0 9 0 0 0 18 0 1 0 237002983 6549504 1400 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/11589/statm: 1599 1400 78 171 0 1425 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6396

[startup+0.301196 s]
/proc/loadavg: 1.02 0.98 0.98 2/64 11589
/proc/meminfo: memFree=1188864/2055920 swapFree=4181384/4192956
[pid=11589] ppid=11587 vsize=6396 CPUtime=0.29
/proc/11589/stat : 11589 (minisat_static) R 11587 11589 11409 0 -1 4194304 1426 0 0 0 29 0 0 0 19 0 1 0 237002983 6549504 1411 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/11589/statm: 1599 1411 78 171 0 1425 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6396

[startup+0.701269 s]
/proc/loadavg: 1.02 0.98 0.98 2/64 11589
/proc/meminfo: memFree=1188864/2055920 swapFree=4181384/4192956
[pid=11589] ppid=11587 vsize=6792 CPUtime=0.69
/proc/11589/stat : 11589 (minisat_static) R 11587 11589 11409 0 -1 4194304 1501 0 0 0 69 0 0 0 23 0 1 0 237002983 6955008 1486 1992294400 134512640 135213614 4294956256 18446744073709551615 134713802 0 0 4096 3 0 0 0 17 1 0 0
/proc/11589/statm: 1698 1486 78 171 0 1524 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6792

[startup+1.50242 s]
/proc/loadavg: 1.02 0.98 0.98 2/65 11590
/proc/meminfo: memFree=1182904/2055920 swapFree=4181384/4192956
[pid=11589] ppid=11587 vsize=7452 CPUtime=1.5
/proc/11589/stat : 11589 (minisat_static) R 11587 11589 11409 0 -1 4194304 1683 0 0 0 149 1 0 0 25 0 1 0 237002983 7630848 1668 1992294400 134512640 135213614 4294956256 18446744073709551615 134524033 0 0 4096 3 0 0 0 17 1 0 0
/proc/11589/statm: 1863 1668 78 171 0 1689 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 7452

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

[startup+1.90149 s]
/proc/loadavg: 1.02 0.98 0.98 2/65 11590
/proc/meminfo: memFree=1182904/2055920 swapFree=4181384/4192956
[pid=11589] ppid=11587 vsize=7848 CPUtime=1.89
/proc/11589/stat : 11589 (minisat_static) R 11587 11589 11409 0 -1 4194304 1774 0 0 0 188 1 0 0 25 0 1 0 237002983 8036352 1759 1992294400 134512640 135213614 4294956256 18446744073709551615 134526752 0 0 4096 3 0 0 0 17 1 0 0
/proc/11589/statm: 1962 1759 78 171 0 1788 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 7848

[startup+2.10152 s]
/proc/loadavg: 1.02 0.98 0.98 2/65 11590
/proc/meminfo: memFree=1181888/2055920 swapFree=4181384/4192956
[pid=11589] ppid=11587 vsize=7980 CPUtime=2.1
/proc/11589/stat : 11589 (minisat_static) R 11587 11589 11409 0 -1 4194304 1810 0 0 0 209 1 0 0 25 0 1 0 237002983 8171520 1795 1992294400 134512640 135213614 4294956256 18446744073709551615 134527247 0 0 4096 3 0 0 0 17 1 0 0
/proc/11589/statm: 1995 1795 78 171 0 1821 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 7980

Child status: 20
Real time (s): 2.15983
CPU time (s): 2.15967
CPU user time (s): 2.14667
CPU system time (s): 0.012998
CPU usage (%): 99.9927
Max. virtual memory (cumulated for all children) (KiB): 7980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.14667
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1822
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= 4

runsolver used 0.002999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node44 at 2009-05-12 02:55:50
IDJOB=1797854
IDBENCH=71734
IDSOLVER=651
FILE ID=node44/1797854-1242089750
PBS_JOBID= 9277698
Free space on /tmp= 66372 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1797854-1242089750/watcher-1797854-1242089750 -o /tmp/evaluation-result-1797854-1242089750/solver-1797854-1242089750 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1797854-1242089750.cnf

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

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=291049156

node44.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		: 3000.267
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	: 5931.00
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		: 3000.267
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:       1189344 kB
Buffers:         72296 kB
Cached:         712860 kB
SwapCached:       5480 kB
Active:         152872 kB
Inactive:       640740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1189344 kB
SwapTotal:     4192956 kB
SwapFree:      4181384 kB
Dirty:            2116 kB
Writeback:           0 kB
Mapped:          14464 kB
Slab:            58920 kB
Committed_AS:   823868 kB
PageTables:       1380 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= 66372 MiB
End job on node44 at 2009-05-12 02:55:52