Trace number 1718808

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 0.474927 0.475541

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 benchmark0.217966
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-1718808-1240640193.cnf
0.00/0.00	c found header 'p cnf 110923 286428'
0.39/0.44	c finished parsing
0.39/0.44	c
0.39/0.44	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.39/0.44	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.39/0.44	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.39/0.44	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.39/0.44	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.39/0.44	c --random=1 --spread=2000 --seed=0 --skip=25
0.39/0.44	c
0.39/0.44	c sizeof     vars[0] = 16   alignment = 0       2 MB
0.39/0.44	c sizeof     orgs[0] =  8   alignment = 0       1 MB
0.39/0.44	c sizeof     occs[0] =  8   alignment = 0       1 MB
0.39/0.44	c sizeof iirfs[0..1] =  8   alignment = 0       1 MB
0.39/0.44	c
0.39/0.44	c starting search after 0.4 seconds
0.39/0.44	c no decision limit
0.39/0.46	c
0.39/0.46	c       original/binary      fixed     eliminated      learned       agility
0.39/0.46	c   seconds        variables     equivalent    conflicts       height       MB
0.39/0.46	c
0.39/0.46	c *    0.5   265806   59190  15321 36412      0       0      0    0.0   0   25
0.39/0.47	c 0    0.5   265806   53055  25684 32184      0       1      0    0.0   0   25
0.39/0.47	c
0.39/0.47	s UNSATISFIABLE
0.39/0.47	c
0.39/0.47	c 1 conflicts, 0 decisions, 0 random
0.39/0.47	c 0 iterations, 0 restarts, 0 skipped
0.39/0.47	c 0 enlarged, 0 shrunken, 0 rescored, 0 rebiased
0.39/0.47	c 0 simplifications, 0 reductions
0.39/0.47	c
0.39/0.47	c vars: 25684 fixed, 32184 equiv, 0 elim, 36412 merged
0.39/0.47	c elim: 0 resolutions, 0 phases, 0 rounds
0.39/0.47	c sbst: 0% substituted, 0.0% nots, 0.0% ands, 0.0% xors, 0.0% ites
0.39/0.47	c arty: 0.00 and 0.00 xor average arity
0.39/0.47	c prbe: 0 probed, 0 phases, 0 rounds
0.39/0.47	c prbe: 0 failed, 0 lifted, 0 merged
0.39/0.47	c sccs: 0 non trivial, 0 fixed, 0 merged
0.39/0.47	c hash: 1509 units, 36412 merged
0.39/0.47	c mins: 0 learned, 0% deleted, 0 strong, 0 depth
0.39/0.47	c subs: 0 forward, 0 backward, 0 doms
0.39/0.47	c strs: 0 forward, 0 backward
0.39/0.47	c doms: 0 dominators, 0 high, 0 low
0.39/0.47	c prps: 25684 propagations, 0.05 megaprops
0.39/0.47	c
0.39/0.47	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-1718808-1240640193/watcher-1718808-1240640193 -o /tmp/evaluation-result-1718808-1240640193/solver-1718808-1240640193 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1718808-1240640193.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: 0.92 0.98 0.99 3/64 19070
/proc/meminfo: memFree=1206400/2055920 swapFree=4180840/4192956
[pid=19070] ppid=19068 vsize=4260 CPUtime=0
/proc/19070/stat : 19070 (precosat) R 19068 19070 18809 0 -1 4194304 889 0 0 0 0 0 0 0 18 0 1 0 92046064 4362240 874 1992294400 134512640 135151029 4294956224 18446744073709551615 134697845 0 0 4096 0 0 0 0 17 1 0 0
/proc/19070/statm: 1065 882 59 155 0 908 0

[startup+0.07672 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 19070
/proc/meminfo: memFree=1206400/2055920 swapFree=4180840/4192956
[pid=19070] ppid=19068 vsize=12588 CPUtime=0.07
/proc/19070/stat : 19070 (precosat) R 19068 19070 18809 0 -1 4194304 3058 0 0 0 6 1 0 0 18 0 1 0 92046064 12890112 3011 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19070/statm: 3147 3011 64 155 0 2990 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12588

[startup+0.102724 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 19070
/proc/meminfo: memFree=1206400/2055920 swapFree=4180840/4192956
[pid=19070] ppid=19068 vsize=13908 CPUtime=0.09
/proc/19070/stat : 19070 (precosat) R 19068 19070 18809 0 -1 4194304 3398 0 0 0 8 1 0 0 18 0 1 0 92046064 14241792 3350 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19070/statm: 3477 3350 64 155 0 3320 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13908

[startup+0.301759 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 19070
/proc/meminfo: memFree=1206400/2055920 swapFree=4180840/4192956
[pid=19070] ppid=19068 vsize=23388 CPUtime=0.29
/proc/19070/stat : 19070 (precosat) R 19068 19070 18809 0 -1 4194304 5957 0 0 0 27 2 0 0 19 0 1 0 92046064 23949312 5715 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19070/statm: 5847 5715 64 155 0 5690 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 23388

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

[startup+0.402778 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 19070
/proc/meminfo: memFree=1206400/2055920 swapFree=4180840/4192956
[pid=19070] ppid=19068 vsize=30060 CPUtime=0.39
/proc/19070/stat : 19070 (precosat) R 19068 19070 18809 0 -1 4194304 7267 0 0 0 37 2 0 0 19 0 1 0 92046064 30781440 7025 1992294400 134512640 135151029 4294956224 18446744073709551615 134697845 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19070/statm: 7515 7033 64 155 0 7358 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 30060

Child status: 20
Real time (s): 0.475541
CPU time (s): 0.474927
CPU user time (s): 0.437933
CPU system time (s): 0.036994
CPU usage (%): 99.8709
Max. virtual memory (cumulated for all children) (KiB): 30060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.437933
system time used= 0.036994
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= 1

runsolver used 0.000999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node60 at 2009-04-25 08:16:33
IDJOB=1718808
IDBENCH=20516
IDSOLVER=507
FILE ID=node60/1718808-1240640193
PBS_JOBID= 9186404
Free space on /tmp= 66404 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-1718808-1240640193/watcher-1718808-1240640193 -o /tmp/evaluation-result-1718808-1240640193/solver-1718808-1240640193 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1718808-1240640193.cnf

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

MD5SUM BENCH= 09053ffc48c8fbc3352a0ce4d89c2bbb
RANDOM SEED=64698553

node60.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		: 3000.256
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		: 3000.256
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:       1206816 kB
Buffers:         75676 kB
Cached:         688828 kB
SwapCached:       6548 kB
Active:         214060 kB
Inactive:       559596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1206816 kB
SwapTotal:     4192956 kB
SwapFree:      4180840 kB
Dirty:            5692 kB
Writeback:           0 kB
Mapped:          14072 kB
Slab:            61356 kB
Committed_AS:   305100 kB
PageTables:       1448 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= 66404 MiB
End job on node60 at 2009-04-25 08:16:33