Trace number 1561629

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
picosat 913SAT 0.032994 0.034781

General information on the benchmark

NameCRAFTED/edgematching/
explicit/em_7_4_8_exp.cnf
MD5SUMe0caa78f33b332fe4d9add2bb1044111
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
Satisfiable
(Un)Satisfiability was proved
Number of variables1617
Number of clauses25837
Sum of the clauses size69793
Maximum clause length25
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 214380
Number of clauses of size 38550
Number of clauses of size 4932
Number of clauses of size 51825
Number of clauses of size over 5150

Solver Data 

0.00/0.00	c PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1561629-1238767650.cnf
0.00/0.00	c parsed header 'p cnf 1617 25837'
0.00/0.03	c initialized 1617 variables
0.00/0.03	c found 25837 non trivial clauses
0.00/0.03	c
0.00/0.03	c random number generator seed 0
0.00/0.03	c 
0.00/0.03	c  seconds     variables   original    learned     agility
0.00/0.03	c         level        used      conflicts    limit          MB
0.00/0.03	c 
0.00/0.03	c s   0.0   0.0  1573  36.6 11257    24     0     0   0.0   0.6 
0.00/0.03	c 
0.00/0.03	c initial reduction limit 5728 clauses
0.00/0.03	c 
0.00/0.03	c 1   0.0 208.0  1573  36.6 11257    24     0  5728   0.0   0.6 
0.00/0.03	c 
0.00/0.03	c  seconds     variables   original    learned     agility
0.00/0.03	c         level        used      conflicts    limit          MB
0.00/0.03	c 
0.00/0.03	s SATISFIABLE
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0.00/0.03	v -1611 -1612 -1613 1614 -1615 -1616 -1617 0
0.00/0.03	c
0.00/0.03	c 0 iterations
0.00/0.03	c 0 restarts
0.00/0.03	c 24 failed literals
0.00/0.03	c 24 conflicts
0.00/0.03	c 415 decisions
0.00/0.03	c 44 fixed variables
0.00/0.03	c 44 learned literals
0.00/0.03	c 0.0% deleted literals
0.00/0.03	c 119419 propagations
0.00/0.03	c 36.6% variables used
0.00/0.03	c 0.0 seconds in library
0.00/0.03	c 3.9 megaprops/second
0.00/0.03	c 1 simplifications
0.00/0.03	c 0 reductions
0.00/0.03	c 0.0 MB recycled
0.00/0.03	c 0.6 MB maximally allocated
0.00/0.03	c 0.0 seconds total run time

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-1561629-1238767650/watcher-1561629-1238767650 -o /tmp/evaluation-result-1561629-1238767650/solver-1561629-1238767650 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1561629-1238767650.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: 2.81 2.25 2.09 4/86 6069
/proc/meminfo: memFree=1795032/2055924 swapFree=4179644/4192956
[pid=6069] ppid=6067 vsize=912 CPUtime=0
/proc/6069/stat : 6069 (picosat) R 6067 6069 4931 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 503095390 933888 129 1992294400 134512640 135137933 4294956224 18446744073709551615 134689438 0 0 4096 0 0 0 0 17 0 0 0
/proc/6069/statm: 228 129 56 152 0 74 0

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

Child status: 10
Real time (s): 0.034781
CPU time (s): 0.032994
CPU user time (s): 0.029995
CPU system time (s): 0.002999
CPU usage (%): 94.8621
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.029995
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 273
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= 5
involuntary context switches= 0

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node83 at 2009-04-03 16:07:30
IDJOB=1561629
IDBENCH=70919
IDSOLVER=506
FILE ID=node83/1561629-1238767650
PBS_JOBID= 9085484
Free space on /tmp= 66560 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/APPLICATIONS/edgematching/explicit/em_7_4_8_exp.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1561629-1238767650/watcher-1561629-1238767650 -o /tmp/evaluation-result-1561629-1238767650/solver-1561629-1238767650 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1561629-1238767650.cnf

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

MD5SUM BENCH= e0caa78f33b332fe4d9add2bb1044111
RANDOM SEED=1088811896

node83.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		: 3000.268
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		: 3000.268
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055924 kB
MemFree:       1795512 kB
Buffers:         58084 kB
Cached:         110660 kB
SwapCached:       7580 kB
Active:          37068 kB
Inactive:       150260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1795512 kB
SwapTotal:     4192956 kB
SwapFree:      4179644 kB
Dirty:            1236 kB
Writeback:           0 kB
Mapped:          26068 kB
Slab:            57056 kB
Committed_AS:  1291592 kB
PageTables:       2688 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= 66560 MiB
End job on node83 at 2009-04-03 16:07:30