Trace number 1589716

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 0.880865 0.881452

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                                                |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.19/0.26	============================[ Search Statistics ]==============================
0.19/0.26	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.26	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.26	===============================================================================
0.19/0.26	|         0 |     672     4932    39726 |     1644        0    nan |  0.000 % |
0.19/0.26	|       100 |     672     4932    39726 |     1808      100     10 |  0.428 % |
0.19/0.27	|       251 |     671     4932    39726 |     1989      250     10 |  0.475 % |
0.19/0.27	|       478 |     671     4932    39726 |     2188      477     11 |  0.475 % |
0.19/0.28	|       815 |     661     4804    38358 |     2406      738     13 |  0.689 % |
0.29/0.30	|      1322 |     661     4804    38358 |     2647     1245     25 |  0.689 % |
0.29/0.32	|      2082 |     657     4804    38358 |     2912     2003     28 |  0.784 % |
0.29/0.39	|      3223 |     656     4713    38103 |     3203     2834     53 |  0.808 % |
0.49/0.50	|      4932 |     650     4713    38103 |     3524     2773     72 |  0.950 % |
0.59/0.65	|      7494 |     650     4629    37926 |     3876     3482     58 |  0.950 % |
0.79/0.86	|     11338 |     650     4629    37926 |     4264     3289     41 |  0.950 % |
0.79/0.88	===============================================================================
0.79/0.88	restarts              : 11
0.79/0.88	conflicts             : 11732          (13379 /sec)
0.79/0.88	decisions             : 29960          (1.72 % random) (34167 /sec)
0.79/0.88	propagations          : 443042         (505256 /sec)
0.79/0.88	conflict literals     : 641325         (19.95 % deleted)
0.79/0.88	Memory used           : 5.49 MB
0.79/0.88	CPU time              : 0.876866 s
0.79/0.88	
0.79/0.88	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-1589716-1239104561/watcher-1589716-1239104561 -o /tmp/evaluation-result-1589716-1239104561/solver-1589716-1239104561 -C 1200 -W 1800 -M 1800 --output-limit 1,15 minisat_static HOME/instance-1589716-1239104561.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: 0.92 1.09 1.50 3/64 485
/proc/meminfo: memFree=2000640/2055920 swapFree=4176488/4192956
[pid=485] ppid=483 vsize=2188 CPUtime=0
/proc/485/stat : 485 (minisat_static) R 483 485 448 0 -1 4194304 220 0 0 0 0 0 0 0 18 0 1 0 1183120994 2240512 205 1992294400 134512640 135243866 4294956256 18446744073709551615 134754335 0 0 4096 3 0 0 0 17 1 0 0
/proc/485/statm: 547 205 65 178 0 367 0

[startup+0.00705908 s]
/proc/loadavg: 0.92 1.09 1.50 3/64 485
/proc/meminfo: memFree=2000640/2055920 swapFree=4176488/4192956
[pid=485] ppid=483 vsize=2460 CPUtime=0
/proc/485/stat : 485 (minisat_static) R 483 485 448 0 -1 4194304 276 0 0 0 0 0 0 0 18 0 1 0 1183120994 2519040 261 1992294400 134512640 135243866 4294956256 18446744073709551615 134553517 0 0 4096 3 0 0 0 17 1 0 0
/proc/485/statm: 615 261 65 178 0 435 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2460

[startup+0.101068 s]
/proc/loadavg: 0.92 1.09 1.50 3/64 485
/proc/meminfo: memFree=2000640/2055920 swapFree=4176488/4192956
[pid=485] ppid=483 vsize=5088 CPUtime=0.09
/proc/485/stat : 485 (minisat_static) R 483 485 448 0 -1 4194304 946 0 0 0 9 0 0 0 18 0 1 0 1183120994 5210112 931 1992294400 134512640 135243866 4294956256 18446744073709551615 134541888 0 0 4096 3 0 0 0 17 1 0 0
/proc/485/statm: 1272 931 81 178 0 1092 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5088

[startup+0.30109 s]
/proc/loadavg: 0.92 1.09 1.50 3/64 485
/proc/meminfo: memFree=2000640/2055920 swapFree=4176488/4192956
[pid=485] ppid=483 vsize=5220 CPUtime=0.29
/proc/485/stat : 485 (minisat_static) R 483 485 448 0 -1 4194304 1035 0 0 0 29 0 0 0 19 0 1 0 1183120994 5345280 975 1992294400 134512640 135243866 4294956256 18446744073709551615 134559583 0 0 4096 3 0 0 0 17 1 0 0
/proc/485/statm: 1305 975 86 178 0 1125 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5220

[startup+0.701134 s]
/proc/loadavg: 0.92 1.09 1.50 3/64 485
/proc/meminfo: memFree=2000640/2055920 swapFree=4176488/4192956
[pid=485] ppid=483 vsize=5616 CPUtime=0.69
/proc/485/stat : 485 (minisat_static) R 483 485 448 0 -1 4194304 1121 0 0 0 69 0 0 0 22 0 1 0 1183120994 5750784 1061 1992294400 134512640 135243866 4294956256 18446744073709551615 134559577 0 0 4096 3 0 0 0 17 1 0 0
/proc/485/statm: 1404 1061 87 178 0 1224 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5616

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

[startup+0.801146 s]
/proc/loadavg: 0.92 1.09 1.50 3/64 485
/proc/meminfo: memFree=2000640/2055920 swapFree=4176488/4192956
[pid=485] ppid=483 vsize=5616 CPUtime=0.79
/proc/485/stat : 485 (minisat_static) R 483 485 448 0 -1 4194304 1121 0 0 0 79 0 0 0 24 0 1 0 1183120994 5750784 1061 1992294400 134512640 135243866 4294956256 18446744073709551615 134565840 0 0 4096 3 0 0 0 17 1 0 0
/proc/485/statm: 1404 1061 87 178 0 1224 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5616

Child status: 20
Real time (s): 0.881452
CPU time (s): 0.880865
CPU user time (s): 0.876866
CPU system time (s): 0.003999
CPU usage (%): 99.9334
Max. virtual memory (cumulated for all children) (KiB): 5616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.876866
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1131
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= 3
involuntary context switches= 2

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node35 at 2009-04-07 13:42:41
IDJOB=1589716
IDBENCH=70757
IDSOLVER=568
FILE ID=node35/1589716-1239104561
PBS_JOBID= 9110802
Free space on /tmp= 66456 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1589716-1239104561/watcher-1589716-1239104561 -o /tmp/evaluation-result-1589716-1239104561/solver-1589716-1239104561 -C 1200 -W 1800 -M 1800 --output-limit 1,15  minisat_static HOME/instance-1589716-1239104561.cnf

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

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED=620871866

node35.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		: 3000.229
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		: 3000.229
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:       2001312 kB
Buffers:           892 kB
Cached:          14732 kB
SwapCached:       8856 kB
Active:          19784 kB
Inactive:         5820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       2001312 kB
SwapTotal:     4192956 kB
SwapFree:      4176488 kB
Dirty:            1008 kB
Writeback:           0 kB
Mapped:          16612 kB
Slab:            15040 kB
Committed_AS:  3368704 kB
PageTables:       1404 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= 66456 MiB
End job on node35 at 2009-04-07 13:42:42