Trace number 1556845

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 913UNSAT 7.44087 7.44321

General information on the benchmark

NameAPPLICATIONS/crypto/
md5gen/gus-md5-04.cnf
MD5SUM019984f9d84c315e8eec645fb9d169da
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.32634
Satisfiable
(Un)Satisfiability was proved
Number of variables68679
Number of clauses223994
Sum of the clauses size580546
Maximum clause length3
Minimum clause length1
Number of clauses of size 1129
Number of clauses of size 291178
Number of clauses of size 3132687
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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-1556845-1238750824.cnf
0.00/0.00	c parsed header 'p cnf 68679 223994'
0.49/0.59	c initialized 68679 variables
0.49/0.59	c found 223994 non trivial clauses
0.49/0.59	c
0.49/0.59	c random number generator seed 0
0.49/0.59	c 
0.49/0.59	c  seconds     variables   original    learned     agility
0.49/0.59	c         level        used      conflicts    limit          MB
0.49/0.59	c 
0.49/0.59	c s   0.6   0.0 67974   1.6 131e3    78     0     0   0.0   9.7 
3.09/3.18	c 
3.09/3.18	c initial reduction limit 66215 clauses
3.09/3.18	c 
3.09/3.18	c +   3.2   4.7 67974  99.9 131e3   178    98 72836  39.5  10.6 
3.09/3.20	c N   3.2   4.7 67974  99.9 131e3   178    98 72836  45.4  10.6 
3.79/3.80	c s   3.8   4.5 67968  99.9 131e3   198    47 72836  37.7  10.6 
5.59/5.67	c s   5.7   4.3 67777  99.9 131e3   283    80 72836  39.6  10.9 
7.09/7.15	c s   7.1   4.1 67759  99.9 131e3   331    54 72836  38.6  10.9 
7.39/7.41	c 0   7.4   4.0  2215 100.0 131e3   343    60 72836  41.7  12.6 
7.39/7.44	c 
7.39/7.44	c  seconds     variables   original    learned     agility
7.39/7.44	c         level        used      conflicts    limit          MB
7.39/7.44	c 
7.39/7.44	s UNSATISFIABLE
7.39/7.44	c
7.39/7.44	c 6 iterations
7.39/7.44	c 0 restarts
7.39/7.44	c 86 failed literals
7.39/7.44	c 343 conflicts
7.39/7.44	c 240 decisions
7.39/7.44	c 66464 fixed variables
7.39/7.44	c 97670 learned literals
7.39/7.44	c 30.4% deleted literals
7.39/7.44	c 10529388 propagations
7.39/7.44	c 100.0% variables used
7.39/7.44	c 7.4 seconds in library
7.39/7.44	c 1.4 megaprops/second
7.39/7.44	c 4 simplifications
7.39/7.44	c 0 reductions
7.39/7.44	c 0.1 MB recycled
7.39/7.44	c 12.6 MB maximally allocated
7.39/7.44	c 7.4 seconds total run time

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1556845-1238750824/watcher-1556845-1238750824 -o /tmp/evaluation-result-1556845-1238750824/solver-1556845-1238750824 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1556845-1238750824.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: 0.92 0.98 0.99 3/64 5565
/proc/meminfo: memFree=1786880/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=4692 CPUtime=0
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 549 0 0 0 0 0 0 0 18 0 1 0 1147747351 4804608 534 1992294400 134512640 135137933 4294956224 18446744073709551615 134532287 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 1173 536 53 152 0 1019 0

[startup+0.0820789 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 5565
/proc/meminfo: memFree=1786880/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=8276 CPUtime=0.07
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 1880 0 0 0 7 0 0 0 18 0 1 0 1147747351 8474624 1865 1992294400 134512640 135137933 4294956224 18446744073709551615 134689438 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 2069 1865 56 152 0 1915 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 8276

[startup+0.102081 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 5565
/proc/meminfo: memFree=1786880/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=9192 CPUtime=0.09
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 2087 0 0 0 9 0 0 0 18 0 1 0 1147747351 9412608 2072 1992294400 134512640 135137933 4294956224 18446744073709551615 134689438 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 2298 2072 56 152 0 2144 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9192

[startup+0.301105 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 5565
/proc/meminfo: memFree=1786880/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=12080 CPUtime=0.29
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 2752 0 0 0 28 1 0 0 19 0 1 0 1147747351 12369920 2737 1992294400 134512640 135137933 4294956224 18446744073709551615 134528949 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 3020 2737 61 152 0 2866 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12080

[startup+0.701148 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 5565
/proc/meminfo: memFree=1786880/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=12728 CPUtime=0.69
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 2848 0 0 0 68 1 0 0 22 0 1 0 1147747351 13033472 2833 1992294400 134512640 135137933 4294956224 18446744073709551615 134551936 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 3182 2833 69 152 0 3028 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12728

[startup+1.50124 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 5566
/proc/meminfo: memFree=1775480/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=13064 CPUtime=1.49
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 2917 0 0 0 148 1 0 0 25 0 1 0 1147747351 13377536 2902 1992294400 134512640 135137933 4294956224 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 3266 2902 69 152 0 3112 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13064

[startup+3.10142 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 5566
/proc/meminfo: memFree=1775352/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=13064 CPUtime=3.09
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 2917 0 0 0 308 1 0 0 25 0 1 0 1147747351 13377536 2902 1992294400 134512640 135137933 4294956224 18446744073709551615 134551390 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 3266 2902 69 152 0 3112 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13064

[startup+6.30177 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 5566
/proc/meminfo: memFree=1775160/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=13324 CPUtime=6.29
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 2961 0 0 0 628 1 0 0 25 0 1 0 1147747351 13643776 2946 1992294400 134512640 135137933 4294956224 18446744073709551615 134553611 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 3331 2946 69 152 0 3177 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 13324

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

[startup+7.10186 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 5566
/proc/meminfo: memFree=1775096/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=13456 CPUtime=7.09
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 2964 0 0 0 708 1 0 0 25 0 1 0 1147747351 13778944 2949 1992294400 134512640 135137933 4294956224 18446744073709551615 134553611 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 3364 2949 69 152 0 3210 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 13456

[startup+7.30189 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 5566
/proc/meminfo: memFree=1775096/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=13984 CPUtime=7.29
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 3108 0 0 0 728 1 0 0 25 0 1 0 1147747351 14319616 3093 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 3496 3093 69 152 0 3342 0
Current children cumulated CPU time (s) 7.29
Current children cumulated vsize (KiB) 13984

[startup+7.4019 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 5566
/proc/meminfo: memFree=1775096/2055920 swapFree=4176924/4192956
[pid=5565] ppid=5563 vsize=14640 CPUtime=7.39
/proc/5565/stat : 5565 (picosat) R 5563 5565 5117 0 -1 4194304 3273 0 0 0 738 1 0 0 25 0 1 0 1147747351 14991360 3258 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/5565/statm: 3693 3259 69 152 0 3539 0
Current children cumulated CPU time (s) 7.39
Current children cumulated vsize (KiB) 14640

Child status: 20
Real time (s): 7.44321
CPU time (s): 7.44087
CPU user time (s): 7.42187
CPU system time (s): 0.018997
CPU usage (%): 99.9686
Max. virtual memory (cumulated for all children) (KiB): 14640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.42187
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3397
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= 11

runsolver used 0.007998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node35 at 2009-04-03 11:27:04
IDJOB=1556845
IDBENCH=70827
IDSOLVER=506
FILE ID=node35/1556845-1238750824
PBS_JOBID= 9085440
Free space on /tmp= 66476 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-04.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1556845-1238750824/watcher-1556845-1238750824 -o /tmp/evaluation-result-1556845-1238750824/solver-1556845-1238750824 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1556845-1238750824.cnf

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

MD5SUM BENCH= 019984f9d84c315e8eec645fb9d169da
RANDOM SEED=1364143205

node35.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		: 3000.229
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		: 3000.229
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:       1787296 kB
Buffers:         36864 kB
Cached:         145436 kB
SwapCached:      10140 kB
Active:          29152 kB
Inactive:       164848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1787296 kB
SwapTotal:     4192956 kB
SwapFree:      4176924 kB
Dirty:            4740 kB
Writeback:           0 kB
Mapped:          17524 kB
Slab:            60592 kB
Committed_AS:  3006684 kB
PageTables:       1404 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= 66476 MiB
End job on node35 at 2009-04-03 11:27:12