Trace number 1725400

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 0.162974 0.163937

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00090.sat05-1326.reshuffled-07.cnf
MD5SUMfc73c241ff6e8e1a49a6ff2500eb7905
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.131979
Satisfiable
(Un)Satisfiability was proved
Number of variables322
Number of clauses9322
Sum of the clauses size72335
Maximum clause length11
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 211
Number of clauses of size 379
Number of clauses of size 4136
Number of clauses of size 5421
Number of clauses of size over 58674

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-1725400-1240704472.cnf
0.00/0.00	c parsed header 'p cnf 322 9322'
0.00/0.01	c initialized 322 variables
0.00/0.01	c found 9322 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   321   0.9  9310     0     0     0   0.0   0.5 
0.00/0.01	c 
0.00/0.01	c initial reduction limit 4655 clauses
0.00/0.01	c 
0.00/0.01	c +   0.0 138.6   321  54.3  9310   100   100  5120   2.2   0.5 
0.00/0.01	c R   0.0 138.6   321  54.3  9310   100   100  5120   2.2   0.5 
0.00/0.01	c +   0.0  99.0   321  54.3  9310   250   250  5632   4.9   0.5 
0.00/0.02	c R   0.0  91.1   321  74.2  9310   400   400  5632   7.0   0.5 
0.00/0.02	c +   0.0 102.0   321  84.8  9310   475   475  6195   8.0   0.5 
0.00/0.02	c +   0.0  90.5   321  85.1  9310   812   812  6814  12.1   0.6 
0.00/0.03	c R   0.0  86.9   321  85.1  9310  1201  1200  6814  15.3   0.6 
0.00/0.03	c +   0.0  82.4   321  85.4  9310  1317  1315  7495  15.8   0.6 
0.00/0.04	c +   0.0  87.2   321 100.0  9310  2074  2067  8244  17.8   0.6 
0.00/0.04	c R   0.0  85.2   320 100.0  9310  2268  2260  8244  18.6   0.7 
0.00/0.04	c R   0.0  87.0   320 100.0  9310  2570  2562  8244  18.9   0.7 
0.00/0.05	c R   0.1  86.6   319 100.0  9310  3047  3034  8244  19.8   0.7 
0.00/0.05	c +   0.1  84.5   319 100.0  9310  3209  3196  9068  20.1   0.7 
0.00/0.05	c R   0.1  88.7   319 100.0  9310  3349  3335  9068  19.5   0.7 
0.00/0.06	c R   0.1  84.4   318 100.0  9310  4169  4150  9068  21.9   0.8 
0.00/0.07	c R   0.1  85.1   318 100.0  9310  4469  4449  9068  21.1   0.8 
0.00/0.07	c +   0.1  87.6   317 100.0  9310  4911  4888  9974  19.8   0.8 
0.00/0.08	c R   0.1  87.4   317 100.0  9310  4985  4962  9974  19.4   0.8 
0.00/0.08	c R   0.1  86.5   317 100.0  9310  5285  5261  9974  19.8   0.8 
0.00/0.09	c R   0.1  85.5   317 100.0  9310  6087  6063  9974  19.9   0.9 
0.00/0.09	c 
0.00/0.09	c  seconds     variables   original    learned     agility
0.00/0.09	c         level        used      conflicts    limit          MB
0.00/0.09	c 
0.09/0.10	c R   0.1  82.6   316 100.0  9310  6713  6679  9974  20.4   0.9 
0.09/0.10	c R   0.1  81.5   316 100.0  9310  7013  6979  9974  22.0   0.9 
0.09/0.11	c +   0.1  81.4   316 100.0  9310  7464  7429 10971  21.8   1.0 
0.09/0.12	c R   0.1  83.9   316 100.0  9310  7818  7782 10971  19.9   1.0 
0.09/0.12	c R   0.1  83.2   314 100.0  9310  8025  7983 10971  20.3   1.0 
0.09/0.12	c R   0.1  83.8   314 100.0  9310  8325  8283 10971  19.1   1.1 
0.09/0.13	c R   0.1  83.8   313 100.0  9310  8866  8819 10971  19.2   1.1 
0.09/0.13	c R   0.1  84.0   313 100.0  9310  9168  9120 10971  18.6   1.1 
0.09/0.14	c R   0.1  83.9   312 100.0  9310  9425  9369 10971  18.9   1.1 
0.09/0.14	c R   0.1  83.3   309 100.0  9310  9740  9672 10971  18.2   1.1 
0.09/0.15	c R   0.2  82.6   309 100.0  9310 10041  9973 10971  19.0   1.2 
0.09/0.15	c R   0.2  82.0   308 100.0  9310 10166 10093 10971  19.1   1.2 
0.09/0.15	c R   0.2  81.3   307 100.0  9310 10377 10299 10971  19.5   1.2 
0.09/0.16	c 0   0.2  80.2   297 100.0  9310 10674 10575 10971  20.7   1.2 
0.09/0.16	c 
0.09/0.16	c  seconds     variables   original    learned     agility
0.09/0.16	c         level        used      conflicts    limit          MB
0.09/0.16	c 
0.09/0.16	s UNSATISFIABLE
0.09/0.16	c
0.09/0.16	c 19 iterations
0.09/0.16	c 66 restarts
0.09/0.16	c 0 failed literals
0.09/0.16	c 10674 conflicts
0.09/0.16	c 42941 decisions
0.09/0.16	c 25 fixed variables
0.09/0.16	c 108081 learned literals
0.09/0.16	c 6.3% deleted literals
0.09/0.16	c 114639 propagations
0.09/0.16	c 100.0% variables used
0.09/0.16	c 0.2 seconds in library
0.09/0.16	c 0.7 megaprops/second
0.09/0.16	c 1 simplifications
0.09/0.16	c 0 reductions
0.09/0.16	c 0.0 MB recycled
0.09/0.16	c 1.2 MB maximally allocated
0.09/0.16	c 0.2 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-1725400-1240704472/watcher-1725400-1240704472 -o /tmp/evaluation-result-1725400-1240704472/solver-1725400-1240704472 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1725400-1240704472.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: 1.72 1.66 1.35 3/64 30185
/proc/meminfo: memFree=1649472/2055920 swapFree=4192812/4192956
[pid=30185] ppid=30183 vsize=912 CPUtime=0
/proc/30185/stat : 30185 (picosat) R 30183 30185 29495 0 -1 4194304 120 0 0 0 0 0 0 0 18 0 1 0 98475682 933888 105 1992294400 134512640 135137933 4294956224 18446744073709551615 134689438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30185/statm: 228 105 56 152 0 74 0

[startup+0.008834 s]
/proc/loadavg: 1.72 1.66 1.35 3/64 30185
/proc/meminfo: memFree=1649472/2055920 swapFree=4192812/4192956
[pid=30185] ppid=30183 vsize=1056 CPUtime=0
/proc/30185/stat : 30185 (picosat) R 30183 30185 29495 0 -1 4194304 160 0 0 0 0 0 0 0 18 0 1 0 98475682 1081344 145 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/30185/statm: 264 145 56 152 0 110 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1056

[startup+0.101851 s]
/proc/loadavg: 1.72 1.66 1.35 3/64 30185
/proc/meminfo: memFree=1649472/2055920 swapFree=4192812/4192956
[pid=30185] ppid=30183 vsize=1716 CPUtime=0.09
/proc/30185/stat : 30185 (picosat) R 30183 30185 29495 0 -1 4194304 343 0 0 0 9 0 0 0 18 0 1 0 98475682 1757184 328 1992294400 134512640 135137933 4294956224 18446744073709551615 134554568 0 0 4096 0 0 0 0 17 1 0 0
/proc/30185/statm: 429 328 69 152 0 275 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1716

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

Child status: 20
Real time (s): 0.163937
CPU time (s): 0.162974
CPU user time (s): 0.160975
CPU system time (s): 0.001999
CPU usage (%): 99.4126
Max. virtual memory (cumulated for all children) (KiB): 1716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.160975
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 414
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= 1

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node38 at 2009-04-26 02:07:52
IDJOB=1725400
IDBENCH=24582
IDSOLVER=506
FILE ID=node38/1725400-1240704472
PBS_JOBID= 9186774
Free space on /tmp= 66360 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00090.sat05-1326.reshuffled-07.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725400-1240704472/watcher-1725400-1240704472 -o /tmp/evaluation-result-1725400-1240704472/solver-1725400-1240704472 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1725400-1240704472.cnf

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

MD5SUM BENCH= fc73c241ff6e8e1a49a6ff2500eb7905
RANDOM SEED=1961542965

node38.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		: 3000.265
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:       1649952 kB
Buffers:         42240 kB
Cached:         286608 kB
SwapCached:          0 kB
Active:          95368 kB
Inactive:       247304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1649952 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1024 kB
Writeback:           0 kB
Mapped:          23648 kB
Slab:            49288 kB
Committed_AS:   485068 kB
PageTables:       1456 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= 66356 MiB
End job on node38 at 2009-04-26 02:07:53