Trace number 1725754

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)SAT 2.37164 2.37212

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-ukn005.sat05-3845.reshuffled-07.cnf
MD5SUM50ea7ab54b71dd15b01cd5fd293d58eb
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.76073
Satisfiable
(Un)Satisfiability was proved
Number of variables2765
Number of clauses18046
Sum of the clauses size127926
Maximum clause length13
Minimum clause length1
Number of clauses of size 135
Number of clauses of size 2400
Number of clauses of size 32372
Number of clauses of size 4481
Number of clauses of size 5648
Number of clauses of size over 514110

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 |                                                                             |
0.00/0.03	c |  Number of variables:          2765                                         |
0.00/0.03	c |  Number of clauses:           17729                                         |
0.00/0.03	c |  Parse time:                   0.03 s                                       |
0.09/0.17	c |  Simplification time:          0.14 s                                       |
0.09/0.17	c |                                                                             |
0.09/0.17	c ============================[ Search Statistics ]==============================
0.09/0.17	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.17	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.17	c ===============================================================================
0.09/0.18	c |       100 |    2157    11940    77315 |     4378      100     12 |  2.061 % |
0.09/0.18	c |       250 |    2157    11940    77315 |     4815      250     13 |  2.061 % |
0.09/0.18	c |       475 |    2157    11940    77315 |     5297      475     15 |  2.061 % |
0.09/0.19	c |       812 |    2157    11940    77315 |     5827      812     16 |  2.061 % |
0.19/0.20	c |      1318 |    2157    11940    77315 |     6409     1318     17 |  2.062 % |
0.19/0.23	c |      2077 |    2157    11940    77315 |     7050     2077     17 |  2.061 % |
0.19/0.27	c |      3216 |    2157    11940    77315 |     7755     3216     21 |  2.061 % |
0.29/0.34	c |      4924 |    2157    11940    77315 |     8531     4924     21 |  2.062 % |
0.39/0.46	c |      7486 |    2157    11940    77315 |     9384     7486     23 |  2.061 % |
0.59/0.68	c |     11330 |    2157    11940    77315 |    10323     6516     24 |  2.061 % |
1.00/1.04	c |     17096 |    2157    11940    77315 |    11355     7016     24 |  2.061 % |
1.59/1.68	c |     25745 |    2157    11940    77315 |    12490     9906     27 |  2.061 % |
2.29/2.36	c ===============================================================================
2.29/2.36	c restarts              : 125
2.29/2.36	c conflicts             : 34210          (14541 /sec)
2.29/2.36	c decisions             : 123802         (52623 /sec)
2.29/2.36	c propagations          : 2221268        (944159 /sec)
2.29/2.36	c conflict literals     : 993215         (17.52 % deleted)
2.29/2.36	c Memory used           : 18.98 MB
2.29/2.36	c CPU time              : 2.35264 s
2.29/2.36	c 
2.29/2.37	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1725754-1240706431/watcher-1725754-1240706431 -o /tmp/evaluation-result-1725754-1240706431/solver-1725754-1240706431 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1725754-1240706431.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: 1.00 1.00 1.00 3/64 15658
/proc/meminfo: memFree=1727160/2055920 swapFree=4181332/4192956
[pid=15658] ppid=15656 vsize=7784 CPUtime=0
/proc/15658/stat : 15658 (minisat) R 15656 15658 15181 0 -1 4194304 398 0 0 0 0 0 0 0 18 0 1 0 98675970 7970816 382 1992294400 4194304 5092341 548682068832 18446744073709551615 4242215 0 0 4096 3 0 0 0 17 1 0 0
/proc/15658/statm: 1946 382 63 219 0 1724 0

[startup+0.0734839 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 15658
/proc/meminfo: memFree=1727160/2055920 swapFree=4181332/4192956
[pid=15658] ppid=15656 vsize=8908 CPUtime=0.06
/proc/15658/stat : 15658 (minisat) R 15656 15658 15181 0 -1 4194304 836 0 0 0 6 0 0 0 18 0 1 0 98675970 9121792 820 1992294400 4194304 5092341 548682068832 18446744073709551615 4219912 0 0 4096 3 0 0 0 17 1 0 0
/proc/15658/statm: 2227 820 88 219 0 2005 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 8908

[startup+0.102489 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 15658
/proc/meminfo: memFree=1727160/2055920 swapFree=4181332/4192956
[pid=15658] ppid=15656 vsize=9056 CPUtime=0.09
/proc/15658/stat : 15658 (minisat) R 15656 15658 15181 0 -1 4194304 862 0 0 0 9 0 0 0 18 0 1 0 98675970 9273344 846 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/15658/statm: 2264 846 88 219 0 2042 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9056

[startup+0.302517 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 15658
/proc/meminfo: memFree=1727160/2055920 swapFree=4181332/4192956
[pid=15658] ppid=15656 vsize=9056 CPUtime=0.29
/proc/15658/stat : 15658 (minisat) R 15656 15658 15181 0 -1 4194304 1074 0 0 0 29 0 0 0 19 0 1 0 98675970 9273344 876 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/15658/statm: 2264 876 101 219 0 2042 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9056

[startup+0.701574 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 15658
/proc/meminfo: memFree=1727160/2055920 swapFree=4181332/4192956
[pid=15658] ppid=15656 vsize=9056 CPUtime=0.69
/proc/15658/stat : 15658 (minisat) R 15656 15658 15181 0 -1 4194304 1494 0 0 0 69 0 0 0 22 0 1 0 98675970 9273344 960 1992294400 4194304 5092341 548682068832 18446744073709551615 4241260 0 0 4096 3 0 0 0 17 1 0 0
/proc/15658/statm: 2264 960 101 219 0 2042 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9056

[startup+1.50169 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15659
/proc/meminfo: memFree=1722288/2055920 swapFree=4181332/4192956
[pid=15658] ppid=15656 vsize=19436 CPUtime=1.49
/proc/15658/stat : 15658 (minisat) R 15656 15658 15181 0 -1 4194304 2296 0 0 0 148 1 0 0 25 0 1 0 98675970 19902464 1762 1992294400 4194304 5092341 548682068832 18446744073709551615 4244070 0 0 4096 3 0 0 0 17 1 0 0
/proc/15658/statm: 4859 1762 101 219 0 4637 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19436

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

[startup+1.90175 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15659
/proc/meminfo: memFree=1722288/2055920 swapFree=4181332/4192956
[pid=15658] ppid=15656 vsize=19436 CPUtime=1.89
/proc/15658/stat : 15658 (minisat) R 15656 15658 15181 0 -1 4194304 2475 0 0 0 188 1 0 0 25 0 1 0 98675970 19902464 1941 1992294400 4194304 5092341 548682068832 18446744073709551615 4240989 0 0 4096 3 0 0 0 17 1 0 0
/proc/15658/statm: 4859 1941 101 219 0 4637 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 19436

[startup+2.3018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15659
/proc/meminfo: memFree=1719344/2055920 swapFree=4181332/4192956
[pid=15658] ppid=15656 vsize=19436 CPUtime=2.29
/proc/15658/stat : 15658 (minisat) R 15656 15658 15181 0 -1 4194304 2627 0 0 0 228 1 0 0 25 0 1 0 98675970 19902464 2093 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/15658/statm: 4859 2093 101 219 0 4637 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 19436

Child status: 10
Real time (s): 2.37212
CPU time (s): 2.37164
CPU user time (s): 2.35364
CPU system time (s): 0.017997
CPU usage (%): 99.9796
Max. virtual memory (cumulated for all children) (KiB): 19436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.35364
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2660
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= 3

runsolver used 0.006998 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node29 at 2009-04-26 02:40:31
IDJOB=1725754
IDBENCH=24597
IDSOLVER=546
FILE ID=node29/1725754-1240706431
PBS_JOBID= 9186775
Free space on /tmp= 66420 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-ukn005.sat05-3845.reshuffled-07.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725754-1240706431/watcher-1725754-1240706431 -o /tmp/evaluation-result-1725754-1240706431/solver-1725754-1240706431 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1725754-1240706431.cnf

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

MD5SUM BENCH= 50ea7ab54b71dd15b01cd5fd293d58eb
RANDOM SEED=764581341

node29.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		: 3000.281
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		: 3000.281
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:       1727640 kB
Buffers:         42816 kB
Cached:         228564 kB
SwapCached:       5856 kB
Active:         146512 kB
Inactive:       133132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1727640 kB
SwapTotal:     4192956 kB
SwapFree:      4181332 kB
Dirty:            1592 kB
Writeback:           0 kB
Mapped:          13496 kB
Slab:            34616 kB
Committed_AS:   401172 kB
PageTables:       1468 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= 66416 MiB
End job on node29 at 2009-04-26 02:40:34