Trace number 1773191

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 0.486925 0.48577

General information on the benchmark

Nameindustrial/babic/xinetd/
xinetd_vc56703.cnf
MD5SUM09053ffc48c8fbc3352a0ce4d89c2bbb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.241962
Satisfiable
(Un)Satisfiability was proved
Number of variables110923
Number of clauses286428
Sum of the clauses size694958
Maximum clause length3
Minimum clause length1
Number of clauses of size 113085
Number of clauses of size 2138156
Number of clauses of size 3135187
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-1773191-1241182585.cnf
0.00/0.00	c found header 'p cnf 110923 286428'
0.39/0.45	c finished parsing
0.39/0.45	c
0.39/0.45	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.39/0.45	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.39/0.45	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.39/0.45	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.39/0.45	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.39/0.45	c --random=1 --spread=2000 --seed=0 --skip=25
0.39/0.45	c
0.39/0.45	c sizeof     vars[0] = 16   alignment = 0       2 MB
0.39/0.45	c sizeof     orgs[0] =  8   alignment = 0       1 MB
0.39/0.45	c sizeof     occs[0] =  8   alignment = 0       1 MB
0.39/0.45	c sizeof iirfs[0..1] =  8   alignment = 0       1 MB
0.39/0.45	c
0.39/0.45	c starting search after 0.5 seconds
0.39/0.45	c no decision limit
0.39/0.47	c
0.39/0.47	c       original/binary      fixed     eliminated      learned       agility
0.39/0.47	c   seconds        variables     equivalent    conflicts       height       MB
0.39/0.47	c
0.39/0.47	c *    0.5   265806   59190  15321 36412      0       0      0    0.0   0   25
0.39/0.48	c 0    0.5   265806   53055  25684 32184      0       1      0    0.0   0   25
0.39/0.48	c
0.39/0.48	s UNSATISFIABLE
0.39/0.48	c
0.39/0.48	c 1 conflicts, 0 decisions, 0 random
0.39/0.48	c 0 iterations, 0 restarts, 0 skipped
0.39/0.48	c 0 enlarged, 0 shrunken, 0 rescored, 0 rebiased
0.39/0.48	c 0 simplifications, 0 reductions
0.39/0.48	c
0.39/0.48	c vars: 25684 fixed, 32184 equiv, 0 elim, 36412 merged
0.39/0.48	c elim: 0 resolutions, 0 phases, 0 rounds
0.39/0.48	c sbst: 0% substituted, 0.0% nots, 0.0% ands, 0.0% xors, 0.0% ites
0.39/0.48	c arty: 0.00 and 0.00 xor average arity
0.39/0.48	c prbe: 0 probed, 0 phases, 0 rounds
0.39/0.48	c prbe: 0 failed, 0 lifted, 0 merged
0.39/0.48	c sccs: 0 non trivial, 0 fixed, 0 merged
0.39/0.48	c hash: 1509 units, 36412 merged
0.39/0.48	c mins: 0 learned, 0% deleted, 0 strong, 0 depth
0.39/0.48	c subs: 0 forward, 0 backward, 0 doms
0.39/0.48	c strs: 0 forward, 0 backward
0.39/0.48	c doms: 0 dominators, 0 high, 0 low
0.39/0.48	c prps: 25684 propagations, 0.05 megaprops
0.39/0.48	c
0.39/0.48	c 0.5 seconds, 26 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-1773191-1241182585/watcher-1773191-1241182585 -o /tmp/evaluation-result-1773191-1241182585/solver-1773191-1241182585 -C 10000 -W 6000 -M 1800 HOME/precosat HOME/instance-1773191-1241182585.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.96 0.98 0.96 3/64 25677
/proc/meminfo: memFree=765440/2055920 swapFree=4180164/4192956
[pid=25677] ppid=25675 vsize=4260 CPUtime=0
/proc/25677/stat : 25677 (precosat) R 25675 25677 25613 0 -1 4194304 905 0 0 0 0 0 0 0 18 0 1 0 146291560 4362240 891 1992294400 134512640 135151029 4294956240 18446744073709551615 134697845 0 0 4096 0 0 0 0 17 1 0 0
/proc/25677/statm: 1065 898 59 155 0 908 0

[startup+0.0542469 s]
/proc/loadavg: 0.96 0.98 0.96 3/64 25677
/proc/meminfo: memFree=765440/2055920 swapFree=4180164/4192956
[pid=25677] ppid=25675 vsize=11404 CPUtime=0.05
/proc/25677/stat : 25677 (precosat) R 25675 25677 25613 0 -1 4194304 2731 0 0 0 4 1 0 0 18 0 1 0 146291560 11677696 2716 1992294400 134512640 135151029 4294956240 18446744073709551615 134697845 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25677/statm: 2851 2716 64 155 0 2694 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 11404

[startup+0.101255 s]
/proc/loadavg: 0.96 0.98 0.96 3/64 25677
/proc/meminfo: memFree=765440/2055920 swapFree=4180164/4192956
[pid=25677] ppid=25675 vsize=13644 CPUtime=0.09
/proc/25677/stat : 25677 (precosat) R 25675 25677 25613 0 -1 4194304 3323 0 0 0 8 1 0 0 18 0 1 0 146291560 13971456 3275 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25677/statm: 3411 3275 64 155 0 3254 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13644

[startup+0.301289 s]
/proc/loadavg: 0.96 0.98 0.96 3/64 25677
/proc/meminfo: memFree=765440/2055920 swapFree=4180164/4192956
[pid=25677] ppid=25675 vsize=22992 CPUtime=0.3
/proc/25677/stat : 25677 (precosat) R 25675 25677 25613 0 -1 4194304 5862 0 0 0 27 3 0 0 19 0 1 0 146291560 23543808 5620 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25677/statm: 5748 5621 64 155 0 5591 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 22992

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

[startup+0.401306 s]
/proc/loadavg: 0.96 0.98 0.96 3/64 25677
/proc/meminfo: memFree=765440/2055920 swapFree=4180164/4192956
[pid=25677] ppid=25675 vsize=27480 CPUtime=0.39
/proc/25677/stat : 25677 (precosat) R 25675 25677 25613 0 -1 4194304 6971 0 0 0 36 3 0 0 19 0 1 0 146291560 28139520 6729 1992294400 134512640 135151029 4294956240 18446744073709551615 134703758 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25677/statm: 6870 6729 64 155 0 6713 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 27480

Child status: 20
Real time (s): 0.48577
CPU time (s): 0.486925
CPU user time (s): 0.439933
CPU system time (s): 0.046992
CPU usage (%): 100.238
Max. virtual memory (cumulated for all children) (KiB): 27480

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.439933
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7765
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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node25 at 2009-05-01 14:56:25
IDJOB=1773191
IDBENCH=20516
IDSOLVER=607
FILE ID=node25/1773191-1241182585
PBS_JOBID= 9224587
Free space on /tmp= 66428 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT07/industrial/babic/xinetd/xinetd_vc56703.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773191-1241182585/watcher-1773191-1241182585 -o /tmp/evaluation-result-1773191-1241182585/solver-1773191-1241182585 -C 10000 -W 6000 -M 1800  HOME/precosat HOME/instance-1773191-1241182585.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 09053ffc48c8fbc3352a0ce4d89c2bbb
RANDOM SEED=1762353170

node25.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	: 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		: 3000.259
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:        765856 kB
Buffers:         75996 kB
Cached:        1136512 kB
SwapCached:       7752 kB
Active:          24780 kB
Inactive:      1196844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        765856 kB
SwapTotal:     4192956 kB
SwapFree:      4180164 kB
Dirty:            5704 kB
Writeback:           0 kB
Mapped:          13404 kB
Slab:            54368 kB
Committed_AS:   670100 kB
PageTables:       1460 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= 66428 MiB
End job on node25 at 2009-05-01 14:56:26