Trace number 1773752

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 17.2984 17.305

General information on the benchmark

NameAPPLICATIONS/bitverif/
smulo/smulo016.cnf
MD5SUM576249eded8a3c95c0b3aa8dcd51992e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark12.3741
Satisfiable
(Un)Satisfiability was proved
Number of variables2945
Number of clauses8738
Sum of the clauses size20386
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 25824
Number of clauses of size 32912
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	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.01	c |  Number of variables:          2945                                         |
0.00/0.01	c |  Number of clauses:            8736                                         |
0.00/0.01	c |  Parse time:                   0.01 s                                       |
0.00/0.03	c |  Simplification time:          0.02 s                                       |
0.00/0.03	c |                                                                             |
0.00/0.03	c ============================[ Search Statistics ]==============================
0.00/0.03	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.03	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.03	c ===============================================================================
0.00/0.03	c |       100 |    1459     6286    17914 |     2304      100     30 |  0.069 % |
0.00/0.04	c |       250 |    1459     6286    17914 |     2535      250     24 |  0.068 % |
0.00/0.06	c |       475 |    1459     6286    17914 |     2788      475     27 |  0.068 % |
0.07/0.08	c |       812 |    1459     6286    17914 |     3067      812     24 |  0.068 % |
0.09/0.12	c |      1318 |    1459     6286    17914 |     3374     1318     26 |  0.068 % |
0.09/0.16	c |      2077 |    1459     6286    17914 |     3712     2077     24 |  0.068 % |
0.19/0.22	c |      3216 |    1459     6286    17914 |     4083     3216     22 |  0.068 % |
0.29/0.31	c |      4924 |    1459     6286    17914 |     4491     2719     15 |  0.068 % |
0.39/0.45	c |      7486 |    1457     6277    17893 |     4940     2839     17 |  0.136 % |
0.69/0.72	c |     11330 |    1457     6277    17893 |     5434     4195     19 |  0.136 % |
1.09/1.17	c |     17096 |    1457     6277    17893 |     5978     4404     18 |  0.136 % |
1.69/1.75	c |     25745 |    1457     6277    17893 |     6576     3896     16 |  0.136 % |
2.59/2.61	c |     38719 |    1457     6277    17893 |     7233     3537     16 |  0.136 % |
3.99/4.01	c |     58180 |    1457     6277    17893 |     7957     4595     16 |  0.136 % |
6.18/6.28	c |     87372 |    1457     6277    17893 |     8752     5507     16 |  0.136 % |
9.68/9.70	c |    131161 |    1456     6272    17882 |     9628     4943     17 |  0.170 % |
14.89/14.91	c |    196845 |    1456     6272    17882 |    10590     7170     18 |  0.170 % |
17.29/17.30	c ===============================================================================
17.29/17.30	c restarts              : 511
17.29/17.30	c conflicts             : 225359         (13038 /sec)
17.29/17.30	c decisions             : 311204         (18005 /sec)
17.29/17.30	c propagations          : 42803784       (2476444 /sec)
17.29/17.30	c conflict literals     : 4442700        (45.64 % deleted)
17.29/17.30	c Memory used           : 19.25 MB
17.29/17.30	c CPU time              : 17.2844 s
17.29/17.30	c 
17.29/17.30	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-1773752-1241213374/watcher-1773752-1241213374 -o /tmp/evaluation-result-1773752-1241213374/solver-1773752-1241213374 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773752-1241213374.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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: 0.92 0.98 0.99 3/64 27051
/proc/meminfo: memFree=1150056/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=7748 CPUtime=0
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 239 0 0 0 0 0 0 0 18 0 1 0 149370652 7933952 223 1992294400 4194304 5092341 548682068848 18446744073709551615 4515551 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 1937 223 63 219 0 1715 0

[startup+0.077973 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27051
/proc/meminfo: memFree=1150056/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=8388 CPUtime=0.07
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 541 0 0 0 7 0 0 0 18 0 1 0 149370652 8589312 456 1992294400 4194304 5092341 548682068848 18446744073709551615 4250026 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 2097 456 100 219 0 1875 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 8388

[startup+0.101976 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27051
/proc/meminfo: memFree=1150056/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=8388 CPUtime=0.09
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 551 0 0 0 9 0 0 0 18 0 1 0 149370652 8589312 466 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 2097 466 100 219 0 1875 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8388

[startup+0.302013 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27051
/proc/meminfo: memFree=1150056/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=8456 CPUtime=0.29
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 687 0 0 0 29 0 0 0 19 0 1 0 149370652 8658944 482 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 2114 482 101 219 0 1892 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8456

[startup+0.701081 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27051
/proc/meminfo: memFree=1150056/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=13648 CPUtime=0.69
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 867 0 0 0 69 0 0 0 22 0 1 0 149370652 13975552 662 1992294400 4194304 5092341 548682068848 18446744073709551615 4244070 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 3412 662 101 219 0 3190 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13648

[startup+1.50122 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 27052
/proc/meminfo: memFree=1147680/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=8536 CPUtime=1.49
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 1077 0 0 0 149 0 0 0 25 0 1 0 149370652 8740864 631 1992294400 4194304 5092341 548682068848 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 2134 631 101 219 0 1912 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8536

[startup+3.10151 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 27052
/proc/meminfo: memFree=1146656/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=18928 CPUtime=3.09
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 1383 0 0 0 309 0 0 0 25 0 1 0 149370652 19382272 937 1992294400 4194304 5092341 548682068848 18446744073709551615 4249496 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 4732 937 101 219 0 4510 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 18928

[startup+6.30107 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 27052
/proc/meminfo: memFree=1146336/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=18928 CPUtime=6.28
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 1418 0 0 0 628 0 0 0 25 0 1 0 149370652 19382272 972 1992294400 4194304 5092341 548682068848 18446744073709551615 4248199 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 4732 972 101 219 0 4510 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 18928

[startup+12.7012 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 27052
/proc/meminfo: memFree=1144416/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=18928 CPUtime=12.69
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 1886 0 0 0 1268 1 0 0 25 0 1 0 149370652 19382272 1440 1992294400 4194304 5092341 548682068848 18446744073709551615 4240957 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 4732 1440 101 219 0 4510 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 18928

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

[startup+15.9018 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 27052
/proc/meminfo: memFree=1143392/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=19704 CPUtime=15.89
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 2131 0 0 0 1588 1 0 0 25 0 1 0 149370652 20176896 1685 1992294400 4194304 5092341 548682068848 18446744073709551615 4248173 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 4926 1685 101 219 0 4704 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 19704

[startup+16.7019 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 27052
/proc/meminfo: memFree=1143392/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=19704 CPUtime=16.69
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 2131 0 0 0 1668 1 0 0 25 0 1 0 149370652 20176896 1685 1992294400 4194304 5092341 548682068848 18446744073709551615 4248117 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 4926 1685 101 219 0 4704 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 19704

[startup+17.103 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 27052
/proc/meminfo: memFree=1143392/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=19704 CPUtime=17.09
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 2131 0 0 0 1708 1 0 0 25 0 1 0 149370652 20176896 1685 1992294400 4194304 5092341 548682068848 18446744073709551615 4241464 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 4926 1685 101 219 0 4704 0
Current children cumulated CPU time (s) 17.09
Current children cumulated vsize (KiB) 19704

[startup+17.3031 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 27052
/proc/meminfo: memFree=1143392/2055920 swapFree=4181908/4192956
[pid=27051] ppid=27049 vsize=19704 CPUtime=17.29
/proc/27051/stat : 27051 (minisat) R 27049 27051 27014 0 -1 4194304 2131 0 0 0 1728 1 0 0 25 0 1 0 149370652 20176896 1685 1992294400 4194304 5092341 548682068848 18446744073709551615 4240620 0 0 4096 3 0 0 0 17 1 0 0
/proc/27051/statm: 4926 1685 101 219 0 4704 0
Current children cumulated CPU time (s) 17.29
Current children cumulated vsize (KiB) 19704

Child status: 20
Real time (s): 17.305
CPU time (s): 17.2984
CPU user time (s): 17.2844
CPU system time (s): 0.013997
CPU usage (%): 99.9618
Max. virtual memory (cumulated for all children) (KiB): 19704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.2844
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2141
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= 43

runsolver used 0.015997 second user time and 0.043993 second system time

The end

Launcher Data 

Begin job on node18 at 2009-05-01 23:29:34
IDJOB=1773752
IDBENCH=70788
IDSOLVER=608
FILE ID=node18/1773752-1241213374
PBS_JOBID= 9224733
Free space on /tmp= 66152 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/smulo/smulo016.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773752-1241213374/watcher-1773752-1241213374 -o /tmp/evaluation-result-1773752-1241213374/solver-1773752-1241213374 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773752-1241213374.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 576249eded8a3c95c0b3aa8dcd51992e
RANDOM SEED=183390336

node18.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		: 3000.280
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		: 3000.280
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:       1150472 kB
Buffers:         73016 kB
Cached:         724576 kB
SwapCached:       4876 kB
Active:         119620 kB
Inactive:       685780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1150472 kB
SwapTotal:     4192956 kB
SwapFree:      4181908 kB
Dirty:            1164 kB
Writeback:           0 kB
Mapped:          13932 kB
Slab:            86036 kB
Committed_AS:   717580 kB
PageTables:       1372 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= 66152 MiB
End job on node18 at 2009-05-01 23:29:51