Trace number 1717976

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 3.9664 3.97593

General information on the benchmark

Nameindustrial/babic/hsatv17/
hsat_vc11803.cnf
MD5SUM6c6fd606fd41d7205b07602118ad74a0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.52177
Satisfiable
(Un)Satisfiability was proved
Number of variables276402
Number of clauses798348
Sum of the clauses size2080196
Maximum clause length3
Minimum clause length1
Number of clauses of size 131560
Number of clauses of size 2251728
Number of clauses of size 3515060
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 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-1717976-1240632302.cnf
0.00/0.00	c found header 'p cnf 276427 798348'
1.10/1.11	c finished parsing
1.10/1.11	c
1.10/1.11	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
1.10/1.11	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
1.10/1.11	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
1.10/1.11	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
1.10/1.11	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
1.10/1.11	c --random=1 --spread=2000 --seed=0 --skip=25
1.10/1.11	c
1.10/1.11	c sizeof     vars[0] = 16   alignment = 0       4 MB
1.10/1.11	c sizeof     orgs[0] =  8   alignment = 0       2 MB
1.10/1.11	c sizeof     occs[0] =  8   alignment = 0       2 MB
1.10/1.11	c sizeof iirfs[0..1] =  8   alignment = 0       2 MB
1.10/1.11	c
1.10/1.11	c starting search after 1.1 seconds
1.10/1.11	c no decision limit
1.10/1.15	c
1.10/1.15	c       original/binary      fixed     eliminated      learned       agility
1.10/1.15	c   seconds        variables     equivalent    conflicts       height       MB
1.10/1.15	c
1.10/1.15	c *    1.2   759551  177756  34674 63997      0       0      0    0.0   0   65
3.88/3.95	c s    4.0   456412  126066  35219 63672  51470       0      0    0.0   0   81
3.88/3.95	c l    4.0   456412  126066  35219 63672  51470       0 368437    0.0   0   81
3.88/3.95	c 0    4.0   456412  126066  35219 63672  51470       1      0    0.0   0   81
3.88/3.95	c
3.88/3.95	s UNSATISFIABLE
3.88/3.95	c
3.88/3.95	c 1 conflicts, 0 decisions, 0 random
3.88/3.95	c 0 iterations, 0 restarts, 0 skipped
3.88/3.95	c 0 enlarged, 701 shrunken, 0 rescored, 0 rebiased
3.88/3.95	c 1 simplifications, 0 reductions
3.88/3.95	c
3.88/3.95	c vars: 35219 fixed, 63672 equiv, 51470 elim, 63997 merged
3.88/3.95	c elim: 92610 resolutions, 1 phases, 0 rounds
3.88/3.95	c sbst: 72% substituted, 0.5% nots, 36.5% ands, 24.2% xors, 38.7% ites
3.88/3.95	c arty: 2.00 and 2.00 xor average arity
3.88/3.95	c prbe: 122 probed, 1 phases, 0 rounds
3.88/3.95	c prbe: 1 failed, 0 lifted, 0 merged
3.88/3.95	c sccs: 0 non trivial, 0 fixed, 0 merged
3.88/3.95	c hash: 1583 units, 63997 merged
3.88/3.95	c mins: 0 learned, 0% deleted, 0 strong, 0 depth
3.88/3.95	c subs: 725 forward, 767 backward, 6 doms
3.88/3.95	c strs: 680 forward, 280 backward
3.88/3.95	c doms: 3296 dominators, 0 high, 0 low
3.88/3.95	c prps: 446354 propagations, 0.11 megaprops
3.88/3.95	c
3.88/3.95	c 4.0 seconds, 86 MB max, 12 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-1717976-1240632302/watcher-1717976-1240632302 -o /tmp/evaluation-result-1717976-1240632302/solver-1717976-1240632302 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1717976-1240632302.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: 0.93 0.98 0.99 3/64 11686
/proc/meminfo: memFree=965128/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=5108 CPUtime=0
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 882 0 0 0 0 0 0 0 18 0 1 0 91262904 5230592 867 1992294400 134512640 135151029 4294956224 18446744073709551615 134697845 0 0 4096 0 0 0 0 17 1 0 0
/proc/11686/statm: 1277 872 58 155 0 1120 0

[startup+0.023772 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 11686
/proc/meminfo: memFree=965128/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=12104 CPUtime=0.01
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 2480 0 0 0 1 0 0 0 18 0 1 0 91262904 12394496 2465 1992294400 134512640 135151029 4294956224 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 1 0 0
/proc/11686/statm: 3026 2467 59 155 0 2869 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12104

[startup+0.102781 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 11686
/proc/meminfo: memFree=965128/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=25692 CPUtime=0.09
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 6090 0 0 0 7 2 0 0 18 0 1 0 91262904 26308608 6075 1992294400 134512640 135151029 4294956224 18446744073709551615 134703758 0 0 4096 17442 0 0 0 17 1 0 0
/proc/11686/statm: 6423 6076 64 155 0 6266 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 25692

[startup+0.301804 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 11686
/proc/meminfo: memFree=965128/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=36636 CPUtime=0.29
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 8922 0 0 0 26 3 0 0 19 0 1 0 91262904 37515264 8809 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/11686/statm: 9159 8809 64 155 0 9002 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 36636

[startup+0.701852 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 11686
/proc/meminfo: memFree=965128/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=55884 CPUtime=0.69
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 14061 0 0 0 63 6 0 0 22 0 1 0 91262904 57225216 13562 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/11686/statm: 13971 13563 64 155 0 13814 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 55884

[startup+1.50195 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 11687
/proc/meminfo: memFree=896448/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=76616 CPUtime=1.49
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 20558 0 0 0 141 8 0 0 25 0 1 0 91262904 78454784 18465 1992294400 134512640 135151029 4294956224 18446744073709551615 134522046 0 0 4096 17442 0 0 0 17 1 0 0
/proc/11686/statm: 19154 18465 79 155 0 18997 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 76616

[startup+3.10114 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 11687
/proc/meminfo: memFree=877248/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=99612 CPUtime=3.08
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 26741 0 0 0 297 11 0 0 25 0 1 0 91262904 102002688 24133 1992294400 134512640 135151029 4294956224 18446744073709551615 134575923 0 0 4096 17442 0 0 0 17 1 0 0
/proc/11686/statm: 24903 24133 79 155 0 24746 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 99612

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

[startup+3.50119 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 11687
/proc/meminfo: memFree=868224/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=100640 CPUtime=3.48
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 26899 0 0 0 337 11 0 0 25 0 1 0 91262904 103055360 24291 1992294400 134512640 135151029 4294956224 18446744073709551615 134573793 0 0 4096 17442 0 0 0 17 1 0 0
/proc/11686/statm: 25160 24291 79 155 0 25003 0
Current children cumulated CPU time (s) 3.48
Current children cumulated vsize (KiB) 100640

[startup+3.90124 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 11687
/proc/meminfo: memFree=868224/2055920 swapFree=4192956/4192956
[pid=11686] ppid=11684 vsize=101664 CPUtime=3.88
/proc/11686/stat : 11686 (precosat) R 11684 11686 10630 0 -1 4194304 27077 0 0 0 377 11 0 0 25 0 1 0 91262904 104103936 24469 1992294400 134512640 135151029 4294956224 18446744073709551615 134575488 0 0 4096 17442 0 0 0 17 1 0 0
/proc/11686/statm: 25416 24469 79 155 0 25259 0
Current children cumulated CPU time (s) 3.88
Current children cumulated vsize (KiB) 101664

Child status: 20
Real time (s): 3.97593
CPU time (s): 3.9664
CPU user time (s): 3.83242
CPU system time (s): 0.133979
CPU usage (%): 99.7603
Max. virtual memory (cumulated for all children) (KiB): 101664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.83242
system time used= 0.133979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 27085
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= 19

runsolver used 0.007998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node33 at 2009-04-25 06:05:03
IDJOB=1717976
IDBENCH=20463
IDSOLVER=507
FILE ID=node33/1717976-1240632302
PBS_JOBID= 9186362
Free space on /tmp= 66364 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT07/industrial/babic/hsatv17/hsat_vc11803.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1717976-1240632302/watcher-1717976-1240632302 -o /tmp/evaluation-result-1717976-1240632302/solver-1717976-1240632302 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1717976-1240632302.cnf

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

MD5SUM BENCH= 6c6fd606fd41d7205b07602118ad74a0
RANDOM SEED=1533067462

node33.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		: 3000.212
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		: 3000.212
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:        965544 kB
Buffers:         86820 kB
Cached:         899248 kB
SwapCached:          0 kB
Active:         173672 kB
Inactive:       826332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        965544 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           16672 kB
Writeback:           0 kB
Mapped:          23688 kB
Slab:            76332 kB
Committed_AS:   274400 kB
PageTables:       1388 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= 66364 MiB
End job on node33 at 2009-04-25 06:05:07