Trace number 1797384

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-simp 070721UNSAT 1.84572 1.84628

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                                                |
0.04/0.08	|  Parsing time:         0.07         s                                       |
0.39/0.45	============================[ Search Statistics ]==============================
0.39/0.45	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.39/0.45	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.39/0.45	===============================================================================
0.39/0.45	|         0 |    5021    30529   119411 |    10176        0    nan |  0.000 % |
0.39/0.47	|       101 |    5020    30529   119411 |    11193      100      8 |  0.008 % |
0.39/0.48	|       252 |    5020    30529   119411 |    12313      251     12 |  0.008 % |
0.49/0.52	|       477 |    5019    30529   119411 |    13544      475     10 |  0.033 % |
0.49/0.56	|       817 |    5018    30529   119411 |    14899      815     17 |  0.034 % |
0.49/0.59	|      1323 |    5018    30529   119411 |    16389     1321     16 |  0.033 % |
0.59/0.64	|      2083 |    5009    30447   119023 |    18027     2035     18 |  0.180 % |
0.69/0.72	|      3224 |    5009    30447   119023 |    19830     3176     19 |  0.180 % |
0.79/0.80	|      4938 |    4979    30011   117672 |    21813     4890     20 |  0.180 % |
0.89/0.96	|      7502 |    4975    30011   117672 |    23995     7452     21 |  0.297 % |
1.19/1.24	|     11346 |    4932    29672   116669 |    26394    11280     20 |  0.435 % |
1.59/1.64	|     17114 |    4914    29136   114595 |    29034    11358     19 |  0.452 % |
1.79/1.84	===============================================================================
1.79/1.84	restarts              : 12
1.79/1.84	conflicts             : 19958          (10914 /sec)
1.79/1.84	decisions             : 52480          (1.73 % random) (28698 /sec)
1.79/1.84	propagations          : 1354564        (740717 /sec)
1.79/1.84	conflict literals     : 364485         (24.15 % deleted)
1.79/1.84	Memory used           : 14.15 MB
1.79/1.84	CPU time              : 1.82872 s
1.79/1.84	
1.79/1.84	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-1797384-1242089742/watcher-1797384-1242089742 -o /tmp/evaluation-result-1797384-1242089742/solver-1797384-1242089742 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1797384-1242089742.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: 1.03 0.98 0.98 3/64 11532
/proc/meminfo: memFree=1189184/2055920 swapFree=4181384/4192956
[pid=11532] ppid=11530 vsize=2204 CPUtime=0
/proc/11532/stat : 11532 (minisat_static) R 11530 11532 11409 0 -1 4194304 413 0 0 0 0 0 0 0 18 0 1 0 237002235 2256896 398 1992294400 134512640 135243866 4294956256 18446744073709551615 134764927 0 0 4096 3 0 0 0 17 1 0 0
/proc/11532/statm: 551 399 65 178 0 371 0

[startup+0.0531619 s]
/proc/loadavg: 1.03 0.98 0.98 3/64 11532
/proc/meminfo: memFree=1189184/2055920 swapFree=4181384/4192956
[pid=11532] ppid=11530 vsize=6332 CPUtime=0.04
/proc/11532/stat : 11532 (minisat_static) R 11530 11532 11409 0 -1 4194304 1351 0 0 0 4 0 0 0 18 0 1 0 237002235 6483968 1336 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/11532/statm: 1583 1338 65 178 0 1403 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 6332

[startup+0.101169 s]
/proc/loadavg: 1.03 0.98 0.98 3/64 11532
/proc/meminfo: memFree=1189184/2055920 swapFree=4181384/4192956
[pid=11532] ppid=11530 vsize=8960 CPUtime=0.09
/proc/11532/stat : 11532 (minisat_static) R 11530 11532 11409 0 -1 4194304 1994 0 0 0 9 0 0 0 18 0 1 0 237002235 9175040 1979 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/11532/statm: 2240 1979 81 178 0 2060 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8960

[startup+0.301205 s]
/proc/loadavg: 1.03 0.98 0.98 3/64 11532
/proc/meminfo: memFree=1189184/2055920 swapFree=4181384/4192956
[pid=11532] ppid=11530 vsize=14600 CPUtime=0.29
/proc/11532/stat : 11532 (minisat_static) R 11530 11532 11409 0 -1 4194304 3420 0 0 0 28 1 0 0 19 0 1 0 237002235 14950400 3405 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/11532/statm: 3650 3405 81 178 0 3470 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14600

[startup+0.701279 s]
/proc/loadavg: 1.03 0.98 0.98 3/64 11532
/proc/meminfo: memFree=1189184/2055920 swapFree=4181384/4192956
[pid=11532] ppid=11530 vsize=14304 CPUtime=0.69
/proc/11532/stat : 11532 (minisat_static) R 11530 11532 11409 0 -1 4194304 3701 0 0 0 68 1 0 0 23 0 1 0 237002235 14647296 3400 1992294400 134512640 135243866 4294956256 18446744073709551615 134558745 0 0 4096 3 0 0 0 17 1 0 0
/proc/11532/statm: 3576 3400 87 178 0 3396 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14304

[startup+1.50142 s]
/proc/loadavg: 1.03 0.98 0.98 2/65 11533
/proc/meminfo: memFree=1175672/2055920 swapFree=4181384/4192956
[pid=11532] ppid=11530 vsize=14304 CPUtime=1.49
/proc/11532/stat : 11532 (minisat_static) R 11530 11532 11409 0 -1 4194304 3701 0 0 0 148 1 0 0 25 0 1 0 237002235 14647296 3400 1992294400 134512640 135243866 4294956256 18446744073709551615 134565154 0 0 4096 3 0 0 0 17 1 0 0
/proc/11532/statm: 3576 3400 87 178 0 3396 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14304

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

[startup+1.70146 s]
/proc/loadavg: 1.03 0.98 0.98 2/65 11533
/proc/meminfo: memFree=1175672/2055920 swapFree=4181384/4192956
[pid=11532] ppid=11530 vsize=14488 CPUtime=1.69
/proc/11532/stat : 11532 (minisat_static) R 11530 11532 11409 0 -1 4194304 3717 0 0 0 168 1 0 0 25 0 1 0 237002235 14835712 3416 1992294400 134512640 135243866 4294956256 18446744073709551615 134565255 0 0 4096 3 0 0 0 17 1 0 0
/proc/11532/statm: 3622 3416 87 178 0 3442 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 14488

[startup+1.80148 s]
/proc/loadavg: 1.03 0.98 0.98 2/65 11533
/proc/meminfo: memFree=1175672/2055920 swapFree=4181384/4192956
[pid=11532] ppid=11530 vsize=14488 CPUtime=1.79
/proc/11532/stat : 11532 (minisat_static) R 11530 11532 11409 0 -1 4194304 3718 0 0 0 178 1 0 0 25 0 1 0 237002235 14835712 3417 1992294400 134512640 135243866 4294956256 18446744073709551615 134555733 0 0 4096 3 0 0 0 17 1 0 0
/proc/11532/statm: 3622 3417 87 178 0 3442 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 14488

Child status: 20
Real time (s): 1.84628
CPU time (s): 1.84572
CPU user time (s): 1.82872
CPU system time (s): 0.016997
CPU usage (%): 99.9697
Max. virtual memory (cumulated for all children) (KiB): 15660

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.82872
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3728
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 0.007998 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node44 at 2009-05-12 02:55:42
IDJOB=1797384
IDBENCH=71734
IDSOLVER=568
FILE ID=node44/1797384-1242089742
PBS_JOBID= 9277698
Free space on /tmp= 66372 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1797384-1242089742/watcher-1797384-1242089742 -o /tmp/evaluation-result-1797384-1242089742/solver-1797384-1242089742 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1797384-1242089742.cnf

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

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=1350919205

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:       1189600 kB
Buffers:         72200 kB
Cached:         712888 kB
SwapCached:       5480 kB
Active:         152476 kB
Inactive:       641044 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1189600 kB
SwapTotal:     4192956 kB
SwapFree:      4181384 kB
Dirty:            1904 kB
Writeback:           0 kB
Mapped:          14464 kB
Slab:            58692 kB
Committed_AS:   821744 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 02:55:44