Trace number 428677

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
minimarch 2007-04-26 (fixed)UNSAT 3.41348 3.41679

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00150.sat05-1328.reshuffled-07.cnf
MD5SUMb89dce22e5369c8081062018c6eea272
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.37979
Satisfiable
(Un)Satisfiability was proved
Number of variables552
Number of clauses30977
Sum of the clauses size265108
Maximum clause length11
Minimum clause length1
Number of clauses of size 14
Number of clauses of size 29
Number of clauses of size 3112
Number of clauses of size 4194
Number of clauses of size 5765
Number of clauses of size over 529893

Solver Data (download as text)

0.00/0.00	This is MiniMarch 1.1, a modified version of 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:  552                                                  |
0.00/0.00	|  Number of clauses:    30977                                                |
0.09/0.14	|  Parsing time:         0.14         s                                       |
3.39/3.41	lookaheads            : 0
3.39/3.41	variable balance      : 0.00
3.39/3.41	restarts              : 0
3.39/3.41	conflicts             : 0              (0 /sec)
3.39/3.41	decisions             : 0              ( nan % random) (0 /sec)
3.39/3.41	decision = positive   : 0
3.39/3.41	decision = negative   : 0
3.39/3.41	propagations          : 27             (8 /sec)
3.39/3.41	conflict literals     : 0              ( nan % deleted)
3.39/3.41	Memory used           : 7.98 MB
3.39/3.41	CPU time              : 3.40348 s
3.39/3.41	
3.39/3.41	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node47/watcher-428677-1177741300 -o ROOT/results/node47/solver-428677-1177741300 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428677-1177741300/minimarch_fixed /tmp/evaluation/428677-1177741300/instance-428677-1177741300.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): 2400 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 3/77 6717
/proc/meminfo: memFree=1425848/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=1868 CPUtime=0
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 378 0 0 0 0 0 0 0 18 0 1 0 128975362 1912832 363 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 467 363 51 132 0 332 0

[startup+0.015119 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 6717
/proc/meminfo: memFree=1425848/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=2408 CPUtime=0.01
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 499 0 0 0 1 0 0 0 18 0 1 0 128975362 2465792 484 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 602 485 51 132 0 467 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2408

[startup+0.10113 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 6717
/proc/meminfo: memFree=1425848/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=5180 CPUtime=0.09
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 1189 0 0 0 9 0 0 0 18 0 1 0 128975362 5304320 1174 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523042 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 1295 1174 51 132 0 1160 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5180

[startup+0.301151 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 6717
/proc/meminfo: memFree=1425848/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=5176 CPUtime=0.29
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 1201 0 0 0 29 0 0 0 19 0 1 0 128975362 5300224 1186 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134531566 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 1294 1186 63 132 0 1159 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5176

[startup+0.701194 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 6717
/proc/meminfo: memFree=1425848/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=5572 CPUtime=0.69
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 1308 0 0 0 69 0 0 0 22 0 1 0 128975362 5705728 1293 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134535984 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 1393 1293 63 132 0 1258 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5572

[startup+1.50228 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6718
/proc/meminfo: memFree=1420592/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=6036 CPUtime=1.49
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 1406 0 0 0 149 0 0 0 25 0 1 0 128975362 6180864 1391 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134531329 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 1509 1391 63 132 0 1374 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6036

[startup+3.10146 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6718
/proc/meminfo: memFree=1420016/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=7500 CPUtime=3.09
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 1729 0 0 0 309 0 0 0 25 0 1 0 128975362 7680000 1714 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134531553 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 1875 1714 63 132 0 1740 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7500

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

[startup+3.30548 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6718
/proc/meminfo: memFree=1418736/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=7632 CPUtime=3.29
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 1803 0 0 0 329 0 0 0 25 0 1 0 128975362 7815168 1788 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523053 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 1908 1788 63 132 0 1773 0
Current children cumulated CPU time (s) 3.29
Current children cumulated vsize (KiB) 7632

[startup+3.40149 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6718
/proc/meminfo: memFree=1418736/2055920 swapFree=4158036/4192956
[pid=6717] ppid=6715 vsize=7764 CPUtime=3.39
/proc/6717/stat : 6717 (minimarch_fixed) R 6715 6717 5676 0 -1 4194304 1839 0 0 0 339 0 0 0 25 0 1 0 128975362 7950336 1824 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134522229 0 0 4096 3 0 0 0 17 1 0 0
/proc/6717/statm: 1941 1824 63 132 0 1806 0
Current children cumulated CPU time (s) 3.39
Current children cumulated vsize (KiB) 7764

Child status: 20
Real time (s): 3.41679
CPU time (s): 3.41348
CPU user time (s): 3.40348
CPU system time (s): 0.009998
CPU usage (%): 99.9031
Max. virtual memory (cumulated for all children) (KiB): 7764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.40348
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1857
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= 7

runsolver used 0.008998 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node47 on Sat Apr 28 06:21:40 UTC 2007

IDJOB= 428677
IDBENCH= 24588
IDSOLVER= 198
FILE ID= node47/428677-1177741300

PBS_JOBID= 4715430

Free space on /tmp= 66477 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00150.sat05-1328.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/428677-1177741300/minimarch_fixed /tmp/evaluation/428677-1177741300/instance-428677-1177741300.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node47/watcher-428677-1177741300 -o ROOT/results/node47/solver-428677-1177741300 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428677-1177741300/minimarch_fixed /tmp/evaluation/428677-1177741300/instance-428677-1177741300.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  b89dce22e5369c8081062018c6eea272

RANDOM SEED= 320427267

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node47.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		: 3000.221
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		: 3000.221
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:       1426256 kB
Buffers:         52128 kB
Cached:         485504 kB
SwapCached:       4056 kB
Active:         204700 kB
Inactive:       357208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1426256 kB
SwapTotal:     4192956 kB
SwapFree:      4158036 kB
Dirty:            4132 kB
Writeback:           0 kB
Mapped:          30764 kB
Slab:            53256 kB
Committed_AS:  3972580 kB
PageTables:       1776 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= 66477 MiB

End job on node47 on Sat Apr 28 06:21:44 UTC 2007