Trace number 1797956

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 27.3178 27.3253

General information on the benchmark

NameAPPLICATIONS/bitverif/
icbrt/icbrt1_32.cnf
MD5SUM157e258753171ede0eac48b41cfa7b1d
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark18.6072
Satisfiable
(Un)Satisfiability was proved
Number of variables11309
Number of clauses33833
Sum of the clauses size78941
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 222554
Number of clauses of size 311277
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:  11309                                                |
0.00/0.00	|  Number of clauses:    33833                                                |
0.00/0.02	|  Parsing time:         0.02         s                                       |
0.00/0.02	============================[ Search Statistics ]==============================
0.00/0.02	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.02	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.02	===============================================================================
0.00/0.02	|         0 |   11305    33824    78924 |    11274        0    nan |  0.000 % |
0.00/0.07	|       101 |   11305    33824    78924 |    12402      101     41 |  0.036 % |
0.09/0.16	|       251 |   11305    33824    78924 |    13642      251     48 |  0.035 % |
0.09/0.19	|       478 |   11305    33824    78924 |    15006      478     39 |  0.035 % |
0.29/0.32	|       817 |   11305    33824    78924 |    16507      817     34 |  0.035 % |
0.49/0.52	|      1324 |   11305    33824    78924 |    18157     1324     37 |  0.035 % |
0.79/0.81	|      2083 |   11305    33824    78924 |    19973     2083     34 |  0.035 % |
1.29/1.39	|      3223 |   11305    33824    78924 |    21971     3223     32 |  0.035 % |
2.09/2.16	|      4931 |   11305    33824    78924 |    24168     4931     34 |  0.035 % |
3.49/3.53	|      7493 |   11305    33824    78924 |    26585     7493     36 |  0.035 % |
5.79/5.82	|     11338 |   11305    33824    78924 |    29243    11338     37 |  0.035 % |
10.59/10.62	|     17105 |   11305    33824    78924 |    32167    17105     37 |  0.035 % |
18.59/18.63	|     25754 |   11305    33824    78924 |    35384    25754     37 |  0.036 % |
27.28/27.32	===============================================================================
27.28/27.32	restarts              : 13
27.28/27.32	conflicts             : 34724          (1272 /sec)
27.28/27.32	decisions             : 58567          (0.64 % random) (2145 /sec)
27.28/27.32	propagations          : 45330742       (1660598 /sec)
27.28/27.32	conflict literals     : 1227179        (69.61 % deleted)
27.28/27.32	Memory used           : 8.79 MB
27.28/27.32	CPU time              : 27.2979 s
27.28/27.32	
27.28/27.32	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-1797956-1242079794/watcher-1797956-1242079794 -o /tmp/evaluation-result-1797956-1242079794/solver-1797956-1242079794 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1797956-1242079794.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: 0.91 0.97 0.99 3/64 5935
/proc/meminfo: memFree=1669416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=2180 CPUtime=0
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 299 0 0 0 0 0 0 0 18 0 1 0 236007990 2232320 284 1992294400 134512640 135213614 4294956256 18446744073709551615 134736207 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 545 290 58 171 0 371 0

[startup+0.088613 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 5935
/proc/meminfo: memFree=1669416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=3936 CPUtime=0.08
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 741 0 0 0 8 0 0 0 18 0 1 0 236007990 4030464 726 1992294400 134512640 135213614 4294956256 18446744073709551615 134530633 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 984 726 77 171 0 810 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3936

[startup+0.102615 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 5935
/proc/meminfo: memFree=1669416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=3936 CPUtime=0.09
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 745 0 0 0 9 0 0 0 18 0 1 0 236007990 4030464 730 1992294400 134512640 135213614 4294956256 18446744073709551615 134529606 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 984 730 77 171 0 810 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3936

[startup+0.301634 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 5935
/proc/meminfo: memFree=1669416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=4068 CPUtime=0.29
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 777 0 0 0 29 0 0 0 19 0 1 0 236007990 4165632 762 1992294400 134512640 135213614 4294956256 18446744073709551615 134526810 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 1017 762 77 171 0 843 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4068

[startup+0.701673 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 5935
/proc/meminfo: memFree=1669416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=4332 CPUtime=0.69
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 825 0 0 0 69 0 0 0 22 0 1 0 236007990 4435968 810 1992294400 134512640 135213614 4294956256 18446744073709551615 134526832 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 1083 810 77 171 0 909 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4332

[startup+1.50175 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 5936
/proc/meminfo: memFree=1666336/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=4620 CPUtime=1.49
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 900 0 0 0 149 0 0 0 25 0 1 0 236007990 4730880 885 1992294400 134512640 135213614 4294956256 18446744073709551615 134529815 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 1155 885 77 171 0 981 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4620

[startup+3.10191 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 5936
/proc/meminfo: memFree=1665760/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=5280 CPUtime=3.09
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 1059 0 0 0 309 0 0 0 25 0 1 0 236007990 5406720 1044 1992294400 134512640 135213614 4294956256 18446744073709551615 134526736 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 1320 1044 77 171 0 1146 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 5280

[startup+6.30123 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 5936
/proc/meminfo: memFree=1664552/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=6344 CPUtime=6.29
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 1320 0 0 0 628 1 0 0 25 0 1 0 236007990 6496256 1305 1992294400 134512640 135213614 4294956256 18446744073709551615 134536745 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 1586 1305 77 171 0 1412 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6344

[startup+12.7019 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 5936
/proc/meminfo: memFree=1662888/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=7796 CPUtime=12.69
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 1675 0 0 0 1268 1 0 0 25 0 1 0 236007990 7983104 1660 1992294400 134512640 135213614 4294956256 18446744073709551615 134526925 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 1949 1660 77 171 0 1775 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7796

[startup+25.5011 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 5936
/proc/meminfo: memFree=1661416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=8996 CPUtime=25.48
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 1994 0 0 0 2547 1 0 0 25 0 1 0 236007990 9211904 1979 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 2249 1979 77 171 0 2075 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 8996

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

[startup+26.3012 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 5936
/proc/meminfo: memFree=1661416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=8996 CPUtime=26.28
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 1994 0 0 0 2627 1 0 0 25 0 1 0 236007990 9211904 1979 1992294400 134512640 135213614 4294956256 18446744073709551615 134536207 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 2249 1979 77 171 0 2075 0
Current children cumulated CPU time (s) 26.28
Current children cumulated vsize (KiB) 8996

[startup+27.1013 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 5936
/proc/meminfo: memFree=1661416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=8996 CPUtime=27.08
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 1994 0 0 0 2707 1 0 0 25 0 1 0 236007990 9211904 1979 1992294400 134512640 135213614 4294956256 18446744073709551615 134536205 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 2249 1979 77 171 0 2075 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 8996

[startup+27.3013 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 5936
/proc/meminfo: memFree=1661416/2055920 swapFree=4181464/4192956
[pid=5935] ppid=5933 vsize=8996 CPUtime=27.28
/proc/5935/stat : 5935 (minisat_static) R 5933 5935 5644 0 -1 4194304 1994 0 0 0 2727 1 0 0 25 0 1 0 236007990 9211904 1979 1992294400 134512640 135213614 4294956256 18446744073709551615 134527139 0 0 4096 3 0 0 0 17 1 0 0
/proc/5935/statm: 2249 1979 77 171 0 2075 0
Current children cumulated CPU time (s) 27.28
Current children cumulated vsize (KiB) 8996

Child status: 20
Real time (s): 27.3253
CPU time (s): 27.3178
CPU user time (s): 27.2978
CPU system time (s): 0.019996
CPU usage (%): 99.9727
Max. virtual memory (cumulated for all children) (KiB): 8996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.2979
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2006
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= 61

runsolver used 0.035994 second user time and 0.06199 second system time

The end

Launcher Data 

Begin job on node36 at 2009-05-12 00:09:54
IDJOB=1797956
IDBENCH=70792
IDSOLVER=651
FILE ID=node36/1797956-1242079794
PBS_JOBID= 9277662
Free space on /tmp= 66268 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT09/APPLICATIONS/bitverif/icbrt/icbrt1_32.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1797956-1242079794/watcher-1797956-1242079794 -o /tmp/evaluation-result-1797956-1242079794/solver-1797956-1242079794 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1797956-1242079794.cnf

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

MD5SUM BENCH= 157e258753171ede0eac48b41cfa7b1d
RANDOM SEED=1659945026

node36.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		: 3000.232
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		: 3000.232
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:       1669832 kB
Buffers:         43028 kB
Cached:         267088 kB
SwapCached:       5268 kB
Active:          21248 kB
Inactive:       296748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1669832 kB
SwapTotal:     4192956 kB
SwapFree:      4181464 kB
Dirty:            1288 kB
Writeback:           0 kB
Mapped:          13560 kB
Slab:            54124 kB
Committed_AS:   781496 kB
PageTables:       1368 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= 66268 MiB
End job on node36 at 2009-05-12 00:10:21