Trace number 1553235

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
VARSAT-random 2009-03-22UNSAT 16.0916 16.0957

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 benchmark0.418935
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	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  4210                                                 |
0.00/0.00	c |  Number of clauses:    12053                                                |
0.00/0.01	c |  Parsing time:         0.01         s                                       |
0.00/0.01	c |  Timeout:              43200 s
0.00/0.01	c |  Random Seed:          1915949508.000000
0.00/0.01	c |  Heuristic:            EMSP-G, threshold 0.750                              |
0.00/0.01	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.01	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.01	c |                                                                             |
0.29/0.30	c ============================[ Search Statistics ]==============================
0.29/0.30	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.29/0.30	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.29/0.30	c ===============================================================================
0.29/0.30	c |         0 |     672     4932    39726 |     1644        0    nan |  0.000 % |
1.09/1.20	c |       104 |     671     4932    39726 |     1808      103     10 |  0.451 % |
1.99/2.00	c |       254 |     671     4932    39726 |     1989      253     11 |  0.451 % |
2.79/2.87	c |       481 |     671     4932    39726 |     2188      480     20 |  0.451 % |
3.69/3.75	c |       819 |     671     4932    39726 |     2406      818     26 |  0.451 % |
4.59/4.60	c |      1327 |     671     4900    39662 |     2647     1326     28 |  0.451 % |
5.49/5.53	c |      2087 |     671     4900    39662 |     2912     2086     29 |  0.451 % |
6.59/6.68	c |      3227 |     671     4900    39662 |     3203     3226     39 |  0.451 % |
7.38/7.48	c |      4935 |     671     4900    39662 |     3524     3321     56 |  0.451 % |
9.58/9.63	c |      7499 |     671     4900    39662 |     3876     2237     46 |  0.451 % |
10.49/10.54	c |     11344 |     671     4900    39662 |     4264     2118     46 |  0.451 % |
13.39/13.47	c |     17111 |     670     4868    39598 |     4690     3408     74 |  0.475 % |
14.79/14.84	c |     25761 |     670     4868    39598 |     5159     4684     57 |  0.475 % |
15.99/16.09	c ===============================================================================
15.99/16.09	c surveys--CPU time (sec)   : 13.9009        (86.47 % of total)
15.99/16.09	c surveys--attempted        : 294            (21 /sec)
15.99/16.09	c surveys--converged        : 294            (100.00 % successful)
15.99/16.09	c restarts              : 13
15.99/16.09	c conflicts             : 32025          (14720 /sec)
15.99/16.09	c decisions             : 67726          (1.68 % random) (31129 /sec)
15.99/16.09	c propagations          : 1199818        (551471 /sec)
15.99/16.09	c conflict literals     : 1935785        (14.43 % deleted)
15.99/16.09	c Memory used           : 8.53 MB
15.99/16.09	c Total CPU time (sec)      : 16.0766     
15.99/16.09	c 
15.99/16.09	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-1553235-1238712602/watcher-1553235-1238712602 -o /tmp/evaluation-result-1553235-1238712602/solver-1553235-1238712602 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-random_static -seed=1915949508 HOME/instance-1553235-1238712602.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: 0.99 1.00 1.08 3/64 12794
/proc/meminfo: memFree=1023960/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=2896 CPUtime=0
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 358 0 0 0 0 0 0 0 18 0 1 0 1143922285 2965504 343 1992294400 4194304 5102416 548682068800 18446744073709551615 4515945 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 724 344 88 221 0 500 0

[startup+0.05061 s]
/proc/loadavg: 0.99 1.00 1.08 3/64 12794
/proc/meminfo: memFree=1023960/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=6004 CPUtime=0.04
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1127 0 0 0 4 0 0 0 18 0 1 0 1143922285 6148096 1112 1992294400 4194304 5102416 548682068800 18446744073709551615 4491479 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 1501 1112 99 221 0 1277 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 6004

[startup+0.101613 s]
/proc/loadavg: 0.99 1.00 1.08 3/64 12794
/proc/meminfo: memFree=1023960/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=7748 CPUtime=0.09
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1535 0 0 0 9 0 0 0 18 0 1 0 1143922285 7933952 1520 1992294400 4194304 5102416 548682068800 18446744073709551615 4264281 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 1937 1520 99 221 0 1713 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7748

[startup+0.301631 s]
/proc/loadavg: 0.99 1.00 1.08 3/64 12794
/proc/meminfo: memFree=1023960/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8548 CPUtime=0.29
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1740 0 0 0 29 0 0 0 19 0 1 0 1143922285 8753152 1725 1992294400 4194304 5102416 548682068800 18446744073709551615 4486266 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2137 1725 99 221 0 1913 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8548

[startup+0.701666 s]
/proc/loadavg: 0.99 1.00 1.08 3/64 12794
/proc/meminfo: memFree=1023960/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8064 CPUtime=0.69
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1744 0 0 0 69 0 0 0 22 0 1 0 1143922285 8257536 1640 1992294400 4194304 5102416 548682068800 18446744073709551615 4221966 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2016 1640 103 221 0 1792 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8064

[startup+1.50174 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1017552/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8064 CPUtime=1.49
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1753 0 0 0 149 0 0 0 25 0 1 0 1143922285 8257536 1649 1992294400 4194304 5102416 548682068800 18446744073709551615 4221949 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2016 1649 112 221 0 1792 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8064

[startup+3.10288 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1017424/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8064 CPUtime=3.09
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1753 0 0 0 309 0 0 0 25 0 1 0 1143922285 8257536 1649 1992294400 4194304 5102416 548682068800 18446744073709551615 4220505 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2016 1649 112 221 0 1792 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8064

[startup+6.30116 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1017424/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8064 CPUtime=6.29
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1753 0 0 0 629 0 0 0 25 0 1 0 1143922285 8257536 1649 1992294400 4194304 5102416 548682068800 18446744073709551615 4221975 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2016 1649 112 221 0 1792 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8064

[startup+12.7017 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1017368/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8064 CPUtime=12.69
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1756 0 0 0 1268 1 0 0 25 0 1 0 1143922285 8257536 1652 1992294400 4194304 5102416 548682068800 18446744073709551615 4221966 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2016 1652 115 221 0 1792 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8064

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

[startup+14.3059 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1017112/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8464 CPUtime=14.29
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1861 0 0 0 1428 1 0 0 25 0 1 0 1143922285 8667136 1757 1992294400 4194304 5102416 548682068800 18446744073709551615 4221901 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2116 1757 115 221 0 1892 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 8464

[startup+15.1019 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1017112/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8728 CPUtime=15.09
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1902 0 0 0 1508 1 0 0 25 0 1 0 1143922285 8937472 1798 1992294400 4194304 5102416 548682068800 18446744073709551615 4221975 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2182 1798 115 221 0 1958 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 8728

[startup+15.502 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1016984/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8728 CPUtime=15.49
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1902 0 0 0 1548 1 0 0 25 0 1 0 1143922285 8937472 1798 1992294400 4194304 5102416 548682068800 18446744073709551615 4220540 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2182 1798 115 221 0 1958 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 8728

[startup+15.902 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1016984/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8728 CPUtime=15.89
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1904 0 0 0 1588 1 0 0 25 0 1 0 1143922285 8937472 1800 1992294400 4194304 5102416 548682068800 18446744073709551615 4249567 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2182 1800 115 221 0 1958 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 8728

[startup+16.002 s]
/proc/loadavg: 0.99 1.00 1.08 2/65 12795
/proc/meminfo: memFree=1016984/2055920 swapFree=4177016/4192956
[pid=12794] ppid=12792 vsize=8728 CPUtime=15.99
/proc/12794/stat : 12794 (varsat-random_s) R 12792 12794 12646 0 -1 4194304 1904 0 0 0 1598 1 0 0 25 0 1 0 1143922285 8937472 1800 1992294400 4194304 5102416 548682068800 18446744073709551615 4248790 0 0 4096 3 0 0 0 17 1 0 0
/proc/12794/statm: 2182 1800 115 221 0 1958 0
Current children cumulated CPU time (s) 15.99
Current children cumulated vsize (KiB) 8728

Child status: 20
Real time (s): 16.0957
CPU time (s): 16.0916
CPU user time (s): 16.0766
CPU system time (s): 0.014997
CPU usage (%): 99.974
Max. virtual memory (cumulated for all children) (KiB): 8728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.0766
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1915
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= 18

runsolver used 0.022996 second user time and 0.035994 second system time

The end

Launcher Data 

Begin job on node50 at 2009-04-03 00:50:02
IDJOB=1553235
IDBENCH=70757
IDSOLVER=539
FILE ID=node50/1553235-1238712602
PBS_JOBID= 9085294
Free space on /tmp= 64184 MiB

SOLVER NAME= VARSAT-random 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= HOME/varsat-random_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553235-1238712602/watcher-1553235-1238712602 -o /tmp/evaluation-result-1553235-1238712602/solver-1553235-1238712602 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-random_static -seed=1915949508 HOME/instance-1553235-1238712602.cnf

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

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED=1915949508

node50.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		: 3000.238
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		: 3000.238
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:       1024440 kB
Buffers:        112452 kB
Cached:         807060 kB
SwapCached:      10184 kB
Active:         292652 kB
Inactive:       638784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1024440 kB
SwapTotal:     4192956 kB
SwapFree:      4177016 kB
Dirty:            1348 kB
Writeback:           0 kB
Mapped:          17440 kB
Slab:            86036 kB
Committed_AS:  3338748 kB
PageTables:       1456 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= 64180 MiB
End job on node50 at 2009-04-03 00:50:18