Trace number 310620

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, and are wall clock time (not CPU 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 SAT 2007 (with assertions)UNSAT 8.49071 8.49523

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
MD5SUMda575672f9caad385bd5edff99ee5f4d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.42378
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  630                                                  |
0.00/0.00	c |  Number of clauses:    2280                                                 |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |     581     2213     6623 |      737        0    nan |  0.000 % |
0.00/0.01	c |       100 |     581     2213     6623 |      811      100     14 |  0.002 % |
0.00/0.01	c |       251 |     581     2213     6623 |      892      251     16 |  0.001 % |
0.00/0.02	c |       480 |     581     2213     6623 |      981      480     15 |  0.000 % |
0.00/0.04	c |       817 |     581     2213     6623 |     1080      817     15 |  0.001 % |
0.00/0.06	c |      1323 |     581     2213     6623 |     1188      764     14 |  0.001 % |
0.00/0.10	c |      2082 |     581     2213     6623 |     1306      910     13 |  0.000 % |
0.10/0.16	c |      3222 |     581     2213     6623 |     1437      720     11 |  0.001 % |
0.20/0.24	c |      4930 |     581     2213     6623 |     1581      948     13 |  0.001 % |
0.31/0.38	c |      7492 |     581     2213     6623 |     1739     1098     13 |  0.001 % |
0.51/0.58	c |     11336 |     581     2213     6623 |     1913     1373     13 |  0.001 % |
0.82/0.89	c |     17102 |     581     2213     6623 |     2104     1240     13 |  0.000 % |
1.33/1.38	c |     25751 |     581     2213     6623 |     2315     1329     14 |  0.001 % |
2.05/2.14	c |     38727 |     581     2213     6623 |     2546     1358     11 |  0.001 % |
3.27/3.30	c |     58189 |     581     2213     6623 |     2801     1392     12 |  0.002 % |
5.12/5.12	c |     87382 |     579     2191     6550 |     3081     2744     12 |  0.318 % |
7.78/7.87	c |    131172 |     571     2141     6406 |     3389     2566     12 |  1.589 % |
8.40/8.49	c ===============================================================================
8.40/8.49	c restarts              : 17
8.40/8.49	c conflicts             : 140929         (16602 /sec)
8.40/8.49	c decisions             : 169128         (1.80 % random) (19924 /sec)
8.40/8.49	c propagations          : 11913018       (1403396 /sec)
8.40/8.49	c conflict literals     : 1965274        (35.91 % deleted)
8.40/8.49	c Memory used           : 2.49 MB
8.40/8.49	c CPU time              : 8.48871 s
8.40/8.49	c 
8.40/8.49	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-310620-1172560441 -o ROOT/results/node2/solver-310620-1172560441 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310620-1172560441/minisat /tmp/evaluation/310620-1172560441/instance-310620-1172560441.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.82 0.91 0.96 3/77 28857
/proc/meminfo: memFree=1672064/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=1884 CPUtime=0
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 164 0 0 0 0 0 0 0 18 0 1 0 275999092 1929216 148 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134532679 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 471 148 72 138 0 330 0

[startup+0.107731 s]
/proc/loadavg: 0.82 0.91 0.96 3/77 28857
/proc/meminfo: memFree=1672064/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2016 CPUtime=0.1
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 182 0 0 0 10 0 0 0 18 0 1 0 275999092 2064384 166 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550729 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 504 166 73 138 0 363 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2016

[startup+0.517774 s]
/proc/loadavg: 0.82 0.91 0.96 3/77 28857
/proc/meminfo: memFree=1672064/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2148 CPUtime=0.51
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 208 0 0 0 51 0 0 0 22 0 1 0 275999092 2199552 192 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 537 192 73 138 0 396 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2148

[startup+1.33786 s]
/proc/loadavg: 0.82 0.91 0.96 2/78 28858
/proc/meminfo: memFree=1671416/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2148 CPUtime=1.33
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 227 0 0 0 133 0 0 0 25 0 1 0 275999092 2199552 211 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550565 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 537 211 73 138 0 396 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2148

[startup+2.97403 s]
/proc/loadavg: 0.84 0.91 0.96 2/78 28858
/proc/meminfo: memFree=1671224/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2280 CPUtime=2.97
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 256 0 0 0 297 0 0 0 25 0 1 0 275999092 2334720 240 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550706 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 570 240 73 138 0 429 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2280

[startup+6.25037 s]
/proc/loadavg: 0.84 0.91 0.96 2/78 28858
/proc/meminfo: memFree=1670968/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2412 CPUtime=6.24
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 294 0 0 0 624 0 0 0 25 0 1 0 275999092 2469888 278 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134556080 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 603 278 73 138 0 462 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2412

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

[startup+6.5574 s]
/proc/loadavg: 0.84 0.91 0.96 2/78 28858
/proc/meminfo: memFree=1670968/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2412 CPUtime=6.55
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 295 0 0 0 655 0 0 0 25 0 1 0 275999092 2469888 279 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551926 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 603 279 73 138 0 462 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 2412

[startup+7.37749 s]
/proc/loadavg: 0.85 0.91 0.96 2/78 28858
/proc/meminfo: memFree=1670968/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2412 CPUtime=7.37
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 300 0 0 0 737 0 0 0 25 0 1 0 275999092 2469888 284 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134556409 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 603 284 73 138 0 462 0
Current children cumulated CPU time (s) 7.37
Current children cumulated vsize (KiB) 2412

[startup+8.19857 s]
/proc/loadavg: 0.85 0.91 0.96 2/78 28858
/proc/meminfo: memFree=1670904/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2544 CPUtime=8.19
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 304 0 0 0 819 0 0 0 25 0 1 0 275999092 2605056 288 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551872 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 636 288 73 138 0 495 0
Current children cumulated CPU time (s) 8.19
Current children cumulated vsize (KiB) 2544

[startup+8.4046 s]
/proc/loadavg: 0.85 0.91 0.96 2/78 28858
/proc/meminfo: memFree=1670904/2055920 swapFree=4192812/4192956
[pid=28857] ppid=28855 vsize=2544 CPUtime=8.4
/proc/28857/stat : 28857 (minisat) R 28855 28857 27407 0 -1 4194304 306 0 0 0 840 0 0 0 25 0 1 0 275999092 2605056 290 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 1 0 0
/proc/28857/statm: 636 290 73 138 0 495 0
Current children cumulated CPU time (s) 8.4
Current children cumulated vsize (KiB) 2544

Child status: 0
Real time (s): 8.49523
CPU time (s): 8.49071
CPU user time (s): 8.48971
CPU system time (s): 0.000999
CPU usage (%): 99.9467
Max. virtual memory (cumulated for all children) (KiB): 2544

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.48971
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 312
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= 8
involuntary context switches= 172

runsolver used 0.011998 second user time and 0.022996 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Feb 27 07:14:01 UTC 2007

IDJOB= 310620
IDBENCH= 20292
IDSOLVER= 109
FILE ID= node2/310620-1172560441

PBS_JOBID= 3971655

Free space on /tmp= 66557 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310620-1172560441/minisat /tmp/evaluation/310620-1172560441/instance-310620-1172560441.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-310620-1172560441 -o ROOT/results/node2/solver-310620-1172560441 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310620-1172560441/minisat /tmp/evaluation/310620-1172560441/instance-310620-1172560441.cnf            

META MD5SUM SOLVER= 120abd248b069e44985635f055606c5a
MD5SUM BENCH=  da575672f9caad385bd5edff99ee5f4d

RANDOM SEED= 844722523

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.247
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		: 3000.247
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:       1672536 kB
Buffers:         47836 kB
Cached:         205736 kB
SwapCached:          0 kB
Active:         251092 kB
Inactive:        62368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1672536 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1052 kB
Writeback:           0 kB
Mapped:          78784 kB
Slab:            55448 kB
Committed_AS:  1307976 kB
PageTables:       1812 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= 66557 MiB

End job on node2 on Tue Feb 27 07:14:10 UTC 2007