Trace number 1725454

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
precosat 236UNSAT 0.361944 0.362083

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 PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1725454-1240704908.cnf
0.00/0.00	c found header 'p cnf 288 11604'
0.00/0.01	c finished parsing
0.00/0.01	c
0.00/0.01	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.01	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.01	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.01	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.01	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.01	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.01	c
0.00/0.01	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.01	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.01	c
0.00/0.01	c starting search after 0.0 seconds
0.00/0.01	c no decision limit
0.00/0.01	c
0.00/0.01	c       original/binary      fixed     eliminated      learned       agility
0.00/0.01	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.01	c
0.00/0.01	c *    0.0    11602     286      2     0      0       0      0    0.0   0    1
0.02/0.06	c -    0.1    10527     277      2     0      9       0   1000    0.0   0    1
0.02/0.07	c -    0.1    10035     276      2     0     10       0   1000    0.0   0    1
0.02/0.07	c -    0.1     9904     275      2     0     11       0   1000    0.0   0    1
0.02/0.08	c -    0.1     9490     271      2     0     15       0   1000    0.0   0    1
0.02/0.08	c -    0.1     9324     269      2     0     17       0   1000    0.0   0    1
0.02/0.09	c -    0.1     9128     267      2     0     19       0   1000    0.0   0    1
0.02/0.09	c -    0.1     9100     264      2     0     22       0   1000    0.0   0    1
0.02/0.09	c -    0.1     9012     260      2     0     26       0   1000    0.0   0    1
0.09/0.11	c -    0.1     9086     246      4     0     38       0   1000    0.0   0    1
0.09/0.13	c -    0.1     8893     231      4     0     53       0   1000    0.0   0    1
0.09/0.13	c -    0.1     8809     230      4     0     54       0   1000    0.0   0    1
0.19/0.26	c s    0.3     8739     188      5     0     95       0      0    0.0   0    1
0.19/0.26	c l    0.3     8739     188      5     0     95       0   8730    0.0   0    1
0.19/0.26	c R    0.3     8739     188      5     0     95     100    100   85.9   2    1
0.19/0.26	c R    0.3     8739     188      5     0     95     201    201   76.2   4    1
0.19/0.27	c B    0.3     8751     187      6     0     95    1000    993   60.0  14    1
0.19/0.28	c R    0.3     8753     187      6     0     95    1569   1560   59.6  19    1
0.19/0.29	c B    0.3     8753     187      6     0     95    2000   1991   54.6  21    1
0.29/0.36	c
0.29/0.36	c       original/binary      fixed     eliminated      learned       agility
0.29/0.36	c   seconds        variables     equivalent    conflicts       height       MB
0.29/0.36	c
0.29/0.36	c 0    0.4     8949     173     20     0     95    5619   5567   46.4  24    1
0.29/0.36	c
0.29/0.36	s UNSATISFIABLE
0.29/0.36	c
0.29/0.36	c 5619 conflicts, 16557 decisions, 2 random
0.29/0.36	c 6 iterations, 34 restarts, 0 skipped
0.29/0.36	c 0 enlarged, 30 shrunken, 54 rescored, 4 rebiased
0.29/0.36	c 1 simplifications, 0 reductions
0.29/0.36	c
0.29/0.36	c vars: 20 fixed, 0 equiv, 95 elim, 0 merged
0.29/0.36	c elim: 79566 resolutions, 1 phases, 1 rounds
0.29/0.36	c sbst: 0% substituted, 0.0% nots, 0.0% ands, 0.0% xors, 0.0% ites
0.29/0.36	c arty: 0.00 and 0.00 xor average arity
0.29/0.36	c prbe: 572 probed, 1 phases, 1 rounds
0.29/0.36	c prbe: 0 failed, 0 lifted, 0 merged
0.29/0.36	c sccs: 0 non trivial, 0 fixed, 0 merged
0.29/0.36	c hash: 3 units, 0 merged
0.29/0.36	c mins: 45901 learned, 10% deleted, 2 strong, 5 depth
0.29/0.36	c subs: 7 forward, 2752 backward, 150 doms
0.29/0.36	c strs: 5392 forward, 50 backward
0.29/0.36	c doms: 150 dominators, 132 high, 18 low
0.29/0.36	c prps: 47451 propagations, 0.13 megaprops
0.29/0.36	c
0.29/0.36	c 0.4 seconds, 2 MB max, 0 MB recycled

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-1725454-1240704908/watcher-1725454-1240704908 -o /tmp/evaluation-result-1725454-1240704908/solver-1725454-1240704908 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1725454-1240704908.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: 0.99 0.97 0.98 3/64 19944
/proc/meminfo: memFree=1148016/2055920 swapFree=4124000/4192956
[pid=19944] ppid=19942 vsize=920 CPUtime=0
/proc/19944/stat : 19944 (precosat) R 19942 19944 19841 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 98524912 942080 135 1992294400 134512640 135151029 4294956240 18446744073709551615 134703758 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19944/statm: 230 136 64 155 0 73 0

[startup+0.0315769 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 19944
/proc/meminfo: memFree=1148016/2055920 swapFree=4124000/4192956
[pid=19944] ppid=19942 vsize=1900 CPUtime=0.02
/proc/19944/stat : 19944 (precosat) R 19942 19944 19841 0 -1 4194304 411 0 0 0 2 0 0 0 18 0 1 0 98524912 1945600 395 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19944/statm: 475 396 79 155 0 318 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1900

[startup+0.10159 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 19944
/proc/meminfo: memFree=1148016/2055920 swapFree=4124000/4192956
[pid=19944] ppid=19942 vsize=2432 CPUtime=0.09
/proc/19944/stat : 19944 (precosat) R 19942 19944 19841 0 -1 4194304 542 0 0 0 9 0 0 0 18 0 1 0 98524912 2490368 526 1992294400 134512640 135151029 4294956240 18446744073709551615 134575488 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19944/statm: 608 526 79 155 0 451 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2432

[startup+0.301626 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 19944
/proc/meminfo: memFree=1148016/2055920 swapFree=4124000/4192956
[pid=19944] ppid=19942 vsize=2432 CPUtime=0.29
/proc/19944/stat : 19944 (precosat) R 19942 19944 19841 0 -1 4194304 551 0 0 0 29 0 0 0 19 0 1 0 98524912 2490368 530 1992294400 134512640 135151029 4294956240 18446744073709551615 134554875 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19944/statm: 608 530 79 155 0 451 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2432

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

Child status: 20
Real time (s): 0.362083
CPU time (s): 0.361944
CPU user time (s): 0.357945
CPU system time (s): 0.003999
CPU usage (%): 99.9616
Max. virtual memory (cumulated for all children) (KiB): 2572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.357945
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= 552
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= 0

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node2 at 2009-04-26 02:15:08
IDJOB=1725454
IDBENCH=24586
IDSOLVER=507
FILE ID=node2/1725454-1240704908
PBS_JOBID= 9186798
Free space on /tmp= 66316 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725454-1240704908/watcher-1725454-1240704908 -o /tmp/evaluation-result-1725454-1240704908/solver-1725454-1240704908 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1725454-1240704908.cnf

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

MD5SUM BENCH= 270191e44d7630b87c6baceebf140e40
RANDOM SEED=889562616

node2.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:       1148432 kB
Buffers:         81684 kB
Cached:         682876 kB
SwapCached:      63068 kB
Active:         347508 kB
Inactive:       482532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1148432 kB
SwapTotal:     4192956 kB
SwapFree:      4124000 kB
Dirty:            1088 kB
Writeback:           0 kB
Mapped:          13948 kB
Slab:            63388 kB
Committed_AS:   361332 kB
PageTables:       1468 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= 66316 MiB
End job on node2 at 2009-04-26 02:15:08