Trace number 1725453

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 0.786879 0.78781

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
MD5SUM270191e44d7630b87c6baceebf140e40
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.203968
Satisfiable
(Un)Satisfiability was proved
Number of variables288
Number of clauses11604
Sum of the clauses size89223
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 214
Number of clauses of size 373
Number of clauses of size 472
Number of clauses of size 5457
Number of clauses of size over 510986

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-1725453-1240704907.cnf
0.00/0.00	c parsed header 'p cnf 288 11604'
0.00/0.01	c initialized 288 variables
0.00/0.01	c found 11604 non trivial clauses
0.00/0.01	c
0.00/0.01	c random number generator seed 0
0.00/0.01	c 
0.00/0.01	c  seconds     variables   original    learned     agility
0.00/0.01	c         level        used      conflicts    limit          MB
0.00/0.01	c 
0.00/0.01	c s   0.0   0.0   286   6.9 11588     0    48     0   0.0   0.6 
0.00/0.01	c 
0.00/0.01	c initial reduction limit 5794 clauses
0.00/0.01	c 
0.00/0.01	c +   0.0 142.1   286  35.4 11588   100   148  6373   2.1   0.6 
0.00/0.02	c R   0.0 142.1   286  35.4 11588   100   148  6373   2.1   0.6 
0.00/0.02	c +   0.0  96.5   286  43.4 11588   250   298  7010   4.9   0.6 
0.00/0.02	c R   0.0 108.5   286  69.4 11588   402   450  7010   7.3   0.6 
0.00/0.02	c +   0.0  97.8   286  69.4 11588   475   523  7711   8.3   0.6 
0.00/0.02	c +   0.0  91.2   286  97.9 11588   812   860  8482  11.7   0.7 
0.00/0.03	c R   0.0  85.1   286  97.9 11588  1204  1252  8482  14.8   0.7 
0.00/0.03	c +   0.0  81.3   286  97.9 11588  1317  1365  9330  15.6   0.7 
0.00/0.04	c +   0.0  75.4   286 100.0 11588  2074  2122 10263  17.6   0.8 
0.00/0.05	c R   0.1  74.2   286 100.0 11588  3205  3253 10263  19.7   0.8 
0.00/0.05	c +   0.1  74.0   286 100.0 11588  3209  3257 11289  19.5   0.8 
0.07/0.08	c +   0.1  74.4   286 100.0 11588  4911  4959 12417  19.5   1.0 
0.09/0.11	c +   0.1  71.3   286 100.0 11588  7464  7511 13658  21.6   1.1 
0.09/0.12	c R   0.1  71.3   286 100.0 11588  8016  8063 13658  22.4   1.2 
0.09/0.17	c +   0.2  69.7   286 100.0 11588 11293 11339 15023  21.4   1.4 
0.19/0.28	c +   0.3  70.5   286 100.0 11588 17036  9554 16525  21.2   1.4 
0.29/0.31	c R   0.3  68.7   286 100.0 11588 19243 11761 16525  22.2   1.6 
0.39/0.42	c R   0.4  66.9   285 100.0 11588 24973  9211 16525  21.6   1.5 
0.39/0.43	c R   0.4  66.8   285 100.0 11588 25274  9509 16525  22.2   1.5 
0.39/0.44	c +   0.4  66.6   285 100.0 11588 25650  9884 18177  22.0   1.5 
0.39/0.44	c 
0.39/0.44	c  seconds     variables   original    learned     agility
0.39/0.44	c         level        used      conflicts    limit          MB
0.39/0.44	c 
0.39/0.44	c R   0.4  66.3   285 100.0 11588 26078 10312 18177  22.9   1.5 
0.39/0.46	c R   0.5  65.7   283 100.0 11588 26709 10941 18177  22.0   1.6 
0.39/0.46	c R   0.5  65.6   283 100.0 11588 27009 11241 18177  21.6   1.6 
0.39/0.48	c R   0.5  64.9   283 100.0 11588 27810 12042 18177  21.7   1.6 
0.49/0.51	c N   0.5  63.9   283 100.0 11588 29812 14043 18177  23.2   1.8 
0.59/0.60	c N   0.6  61.2   283 100.0 11408 34623  9394 18177  23.4   1.4 
0.59/0.65	c N   0.7  59.4   282 100.0 11408 36796 11558 18177  25.6   1.5 
0.59/0.65	c N   0.7  59.3   282 100.0 11408 37100 11861 18177  25.6   1.5 
0.59/0.66	c N   0.7  58.8   282 100.0 11408 37903 12664 18177  24.6   1.6 
0.59/0.68	c +   0.7  58.3   282 100.0 11408 38571 13332 19994  23.5   1.6 
0.69/0.70	c N   0.7  57.3   282 100.0 11408 39906 14667 19994  23.6   1.7 
0.69/0.71	c N   0.7  56.7   281 100.0 11408 40858 15609 19994  24.1   1.7 
0.69/0.72	c N   0.7  56.6   281 100.0 11408 41162 15913 19994  24.0   1.7 
0.69/0.74	c R   0.7  56.2   281 100.0 11408 41963 16714 19994  21.9   1.8 
0.69/0.77	c N   0.8  55.0   277 100.0 11408 43514 18258 19994  23.4   1.9 
0.69/0.78	c N   0.8  54.9   276 100.0 11408 43813 18554 19994  23.7   1.9 
0.69/0.78	c 0   0.8  54.8   246 100.0 11408 43903 18624 19994  23.9   1.9 
0.69/0.78	c 
0.69/0.78	c  seconds     variables   original    learned     agility
0.69/0.78	c         level        used      conflicts    limit          MB
0.69/0.78	c 
0.69/0.78	s UNSATISFIABLE
0.69/0.78	c
0.69/0.78	c 12 iterations
0.69/0.78	c 119 restarts
0.69/0.78	c 0 failed literals
0.69/0.78	c 43903 conflicts
0.69/0.78	c 120455 decisions
0.69/0.78	c 42 fixed variables
0.69/0.78	c 526384 learned literals
0.69/0.78	c 7.4% deleted literals
0.69/0.78	c 463277 propagations
0.69/0.78	c 100.0% variables used
0.69/0.78	c 0.8 seconds in library
0.69/0.78	c 0.6 megaprops/second
0.69/0.78	c 1 simplifications
0.69/0.78	c 3 reductions
0.69/0.78	c 1.8 MB recycled
0.69/0.78	c 2.0 MB maximally allocated
0.69/0.78	c 0.8 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-1725453-1240704907/watcher-1725453-1240704907 -o /tmp/evaluation-result-1725453-1240704907/solver-1725453-1240704907 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1725453-1240704907.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: 0.85 0.95 0.99 3/64 15607
/proc/meminfo: memFree=1888944/2055920 swapFree=4192812/4192956
[pid=15607] ppid=15605 vsize=912 CPUtime=0
/proc/15607/stat : 15607 (picosat) R 15605 15607 14964 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 98525374 933888 109 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/15607/statm: 228 109 56 152 0 74 0

[startup+0.0779101 s]
/proc/loadavg: 0.85 0.95 0.99 3/64 15607
/proc/meminfo: memFree=1888944/2055920 swapFree=4192812/4192956
[pid=15607] ppid=15605 vsize=1716 CPUtime=0.07
/proc/15607/stat : 15607 (picosat) R 15605 15607 14964 0 -1 4194304 349 0 0 0 7 0 0 0 18 0 1 0 98525374 1757184 334 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/15607/statm: 429 334 69 152 0 275 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1716

[startup+0.101915 s]
/proc/loadavg: 0.85 0.95 0.99 3/64 15607
/proc/meminfo: memFree=1888944/2055920 swapFree=4192812/4192956
[pid=15607] ppid=15605 vsize=1848 CPUtime=0.09
/proc/15607/stat : 15607 (picosat) R 15605 15607 14964 0 -1 4194304 384 0 0 0 9 0 0 0 18 0 1 0 98525374 1892352 369 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/15607/statm: 462 369 69 152 0 308 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1848

[startup+0.301954 s]
/proc/loadavg: 0.85 0.95 0.99 3/64 15607
/proc/meminfo: memFree=1888944/2055920 swapFree=4192812/4192956
[pid=15607] ppid=15605 vsize=2640 CPUtime=0.29
/proc/15607/stat : 15607 (picosat) R 15605 15607 14964 0 -1 4194304 580 0 0 0 29 0 0 0 19 0 1 0 98525374 2703360 565 1992294400 134512640 135137933 4294956224 18446744073709551615 134542980 0 0 4096 0 0 0 0 17 1 0 0
/proc/15607/statm: 660 565 69 152 0 506 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2640

[startup+0.703034 s]
/proc/loadavg: 0.85 0.95 0.99 3/64 15607
/proc/meminfo: memFree=1888944/2055920 swapFree=4192812/4192956
[pid=15607] ppid=15605 vsize=3036 CPUtime=0.69
/proc/15607/stat : 15607 (picosat) R 15605 15607 14964 0 -1 4194304 647 0 0 0 69 0 0 0 23 0 1 0 98525374 3108864 632 1992294400 134512640 135137933 4294956224 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/15607/statm: 759 632 69 152 0 605 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3036

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

Child status: 20
Real time (s): 0.78781
CPU time (s): 0.786879
CPU user time (s): 0.78288
CPU system time (s): 0.003999
CPU usage (%): 99.8818
Max. virtual memory (cumulated for all children) (KiB): 3036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.78288
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= 650
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 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node1 at 2009-04-26 02:15:07
IDJOB=1725453
IDBENCH=24586
IDSOLVER=506
FILE ID=node1/1725453-1240704907
PBS_JOBID= 9186762
Free space on /tmp= 66336 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725453-1240704907/watcher-1725453-1240704907 -o /tmp/evaluation-result-1725453-1240704907/solver-1725453-1240704907 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1725453-1240704907.cnf

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

MD5SUM BENCH= 270191e44d7630b87c6baceebf140e40
RANDOM SEED=1266959243

node1.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1889424 kB
Buffers:         13792 kB
Cached:          85344 kB
SwapCached:        144 kB
Active:          63340 kB
Inactive:        49860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1889424 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1332 kB
Writeback:           0 kB
Mapped:          23696 kB
Slab:            39240 kB
Committed_AS:   335164 kB
PageTables:       1436 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= 66336 MiB
End job on node1 at 2009-04-26 02:15:08