Trace number 428675

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 0.425934 0.426146

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00070.sat05-1324.reshuffled-07.cnf
MD5SUMe72b4e386685e8ae3270a3d69e1ae8da
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.241962
Satisfiable
(Un)Satisfiability was proved
Number of variables257
Number of clauses7375
Sum of the clauses size62500
Maximum clause length11
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 211
Number of clauses of size 346
Number of clauses of size 4119
Number of clauses of size 5300
Number of clauses of size over 56898

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:  257                                                  |
0.00/0.00	|  Number of clauses:    7375                                                 |
0.01/0.03	|  Parsing time:         0.03         s                                       |
0.39/0.42	lookaheads            : 0
0.39/0.42	variable balance      : 0.00
0.39/0.42	restarts              : 0
0.39/0.42	conflicts             : 0              (0 /sec)
0.39/0.42	decisions             : 0              ( nan % random) (0 /sec)
0.39/0.42	decision = positive   : 0
0.39/0.42	decision = negative   : 0
0.39/0.42	propagations          : 10             (24 /sec)
0.39/0.42	conflict literals     : 0              ( nan % deleted)
0.39/0.42	Memory used           : 2.93 MB
0.39/0.42	CPU time              : 0.421935 s
0.39/0.42	
0.39/0.42	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/node58/watcher-428675-1177741262 -o ROOT/results/node58/solver-428675-1177741262 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428675-1177741262/minimarch_fixed /tmp/evaluation/428675-1177741262/instance-428675-1177741262.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: 0.92 0.98 0.99 3/64 8363
/proc/meminfo: memFree=1644672/2055920 swapFree=4184532/4192956
[pid=8363] ppid=8361 vsize=1868 CPUtime=0
/proc/8363/stat : 8363 (minimarch_fixed) R 8361 8363 7569 0 -1 4194304 193 0 0 0 0 0 0 0 18 0 1 0 222035910 1912832 178 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/8363/statm: 467 179 51 132 0 332 0

[startup+0.0173341 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 8363
/proc/meminfo: memFree=1644672/2055920 swapFree=4184532/4192956
[pid=8363] ppid=8361 vsize=2540 CPUtime=0.01
/proc/8363/stat : 8363 (minimarch_fixed) R 8361 8363 7569 0 -1 4194304 350 0 0 0 1 0 0 0 18 0 1 0 222035910 2600960 335 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134704957 0 0 4096 3 0 0 0 17 1 0 0
/proc/8363/statm: 635 335 51 132 0 500 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2540

[startup+0.101349 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 8363
/proc/meminfo: memFree=1644672/2055920 swapFree=4184532/4192956
[pid=8363] ppid=8361 vsize=2708 CPUtime=0.09
/proc/8363/stat : 8363 (minimarch_fixed) R 8361 8363 7569 0 -1 4194304 391 0 0 0 9 0 0 0 18 0 1 0 222035910 2772992 376 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523384 0 0 4096 3 0 0 0 17 1 0 0
/proc/8363/statm: 677 376 63 132 0 542 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2708

[startup+0.301381 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 8363
/proc/meminfo: memFree=1644672/2055920 swapFree=4184532/4192956
[pid=8363] ppid=8361 vsize=3000 CPUtime=0.29
/proc/8363/stat : 8363 (minimarch_fixed) R 8361 8363 7569 0 -1 4194304 466 0 0 0 29 0 0 0 19 0 1 0 222035910 3072000 451 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134531475 0 0 4096 3 0 0 0 17 1 0 0
/proc/8363/statm: 750 451 63 132 0 615 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3000

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

[startup+0.401399 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 8363
/proc/meminfo: memFree=1644672/2055920 swapFree=4184532/4192956
[pid=8363] ppid=8361 vsize=3000 CPUtime=0.39
/proc/8363/stat : 8363 (minimarch_fixed) R 8361 8363 7569 0 -1 4194304 484 0 0 0 39 0 0 0 19 0 1 0 222035910 3072000 469 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523285 0 0 4096 3 0 0 0 17 1 0 0
/proc/8363/statm: 750 469 63 132 0 615 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 3000

Child status: 20
Real time (s): 0.426146
CPU time (s): 0.425934
CPU user time (s): 0.421935
CPU system time (s): 0.003999
CPU usage (%): 99.9503
Max. virtual memory (cumulated for all children) (KiB): 3000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.421935
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 505
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= 1

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node58 on Sat Apr 28 06:21:02 UTC 2007

IDJOB= 428675
IDBENCH= 24587
IDSOLVER= 198
FILE ID= node58/428675-1177741262

PBS_JOBID= 4715451

Free space on /tmp= 66524 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00070.sat05-1324.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/428675-1177741262/minimarch_fixed /tmp/evaluation/428675-1177741262/instance-428675-1177741262.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-428675-1177741262 -o ROOT/results/node58/solver-428675-1177741262 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428675-1177741262/minimarch_fixed /tmp/evaluation/428675-1177741262/instance-428675-1177741262.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  e72b4e386685e8ae3270a3d69e1ae8da

RANDOM SEED= 5541488

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.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		: 3000.265
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		: 3000.265
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:       1645080 kB
Buffers:         41616 kB
Cached:         293060 kB
SwapCached:       2604 kB
Active:         220636 kB
Inactive:       124116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1645080 kB
SwapTotal:     4192956 kB
SwapFree:      4184532 kB
Dirty:            3184 kB
Writeback:           0 kB
Mapped:          16368 kB
Slab:            52168 kB
Committed_AS:  1177072 kB
PageTables:       1380 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= 66524 MiB

End job on node58 on Sat Apr 28 06:21:03 UTC 2007