Trace number 1553154

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 3.72543 3.72545

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor064.cnf
MD5SUM1a151a1e93387c74239b48070e3eed97
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72543
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
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-1553154-1238711938.cnf
0.00/0.00	c found header 'p cnf 14578 42581'
0.03/0.05	c finished parsing
0.03/0.05	c
0.03/0.05	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.03/0.05	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.03/0.05	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.03/0.05	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.03/0.05	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.03/0.05	c --random=1 --spread=2000 --seed=0 --skip=25
0.03/0.05	c
0.03/0.05	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.03/0.05	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.03/0.05	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.03/0.05	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.03/0.06	c
0.03/0.06	c starting search after 0.1 seconds
0.03/0.06	c no decision limit
0.03/0.06	c
0.03/0.06	c       original/binary      fixed     eliminated      learned       agility
0.03/0.06	c   seconds        variables     equivalent    conflicts       height       MB
0.03/0.06	c
0.03/0.06	c *    0.1    42579   14576      2     0      0       0      0    0.0   0    4
1.79/1.80	c s    1.8    14685    1046     24   150  13358       0      0    0.0   0    4
1.79/1.80	c l    1.8    14685    1046     24   150  13358       0   9499    0.0   0    4
1.79/1.82	c R    1.8    14685    1046     24   150  13358     100    100  256.6   3    4
1.79/1.84	c R    1.8    14686    1046     24   150  13358     200    199  187.6   2    4
1.79/1.88	c R    1.9    14694    1046     24   150  13358     801    799  183.3   7    5
1.89/1.90	c B    1.9    14698    1046     24   150  13358    1001    999  193.6   8    5
1.89/1.99	c B    2.0    14902    1042     28   150  13358    2001   1984  177.7   7    5
2.10/2.19	c R    2.2    14920    1042     28   150  13358    4247   4229  200.4  12    6
2.59/2.61	c B    2.6    15299    1038     31   151  13358    8001   7975  189.9   8    9
2.69/2.72	c s    2.7    14686    1038     31   151  13358    8298   8211  189.1   6    8
2.79/2.87	c +    2.9    14690    1038     31   151  13358    9499  10448  184.3   4    9
3.09/3.13	c R    3.1    14690    1038     31   151  13358   11543  10474  179.6   5   10
3.09/3.16	c +    3.2    14690    1038     31   151  13358   11870  11492  178.4   5    9
3.69/3.72	c 0    3.7    23709     596    298   326  13358   14236  11516  175.1   4   11
3.69/3.72	c
3.69/3.72	s UNSATISFIABLE
3.69/3.72	c
3.69/3.72	c 14236 conflicts, 93922 decisions, 59 random
3.69/3.72	c 7 iterations, 68 restarts, 0 skipped
3.69/3.72	c 2 enlarged, 13 shrunken, 139 rescored, 9 rebiased
3.69/3.72	c 2 simplifications, 0 reductions
3.69/3.72	c
3.69/3.72	c vars: 298 fixed, 326 equiv, 13358 elim, 328 merged
3.69/3.72	c elim: 860980 resolutions, 1 phases, 1 rounds
3.69/3.72	c sbst: 65% substituted, 0.3% nots, 99.7% ands, 0.0% xors, 0.0% ites
3.69/3.72	c arty: 2.36 and 0.00 xor average arity
3.69/3.72	c prbe: 30394 probed, 2 phases, 8 rounds
3.69/3.72	c prbe: 153 failed, 21 lifted, 1 merged
3.69/3.72	c sccs: 0 non trivial, 0 fixed, 0 merged
3.69/3.72	c hash: 10 units, 327 merged
3.69/3.72	c mins: 1717610 learned, 12% deleted, 0 strong, 49 depth
3.69/3.72	c subs: 89 forward, 14 backward, 1692 doms
3.69/3.72	c strs: 523 forward, 8 backward
3.69/3.72	c doms: 2447 dominators, 395 high, 4 low
3.69/3.72	c prps: 1512349 propagations, 0.41 megaprops
3.69/3.72	c
3.69/3.72	c 3.7 seconds, 11 MB max, 6 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-1553154-1238711938/watcher-1553154-1238711938 -o /tmp/evaluation-result-1553154-1238711938/solver-1553154-1238711938 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1553154-1238711938.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: 1.00 1.34 1.69 3/64 20543
/proc/meminfo: memFree=1129720/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=2036 CPUtime=0
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 399 0 0 0 0 0 0 0 18 0 1 0 1143859039 2084864 384 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 509 385 63 155 0 352 0

[startup+0.0382311 s]
/proc/loadavg: 1.00 1.34 1.69 3/64 20543
/proc/meminfo: memFree=1129720/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=3880 CPUtime=0.03
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 901 0 0 0 3 0 0 0 18 0 1 0 1143859039 3973120 853 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 970 854 63 155 0 813 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3880

[startup+0.101226 s]
/proc/loadavg: 1.00 1.34 1.69 3/64 20543
/proc/meminfo: memFree=1129720/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=5600 CPUtime=0.09
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 1336 0 0 0 9 0 0 0 18 0 1 0 1143859039 5734400 1287 1992294400 134512640 135151029 4294956240 18446744073709551615 134682423 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 1400 1287 79 155 0 1243 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5600

[startup+0.301254 s]
/proc/loadavg: 1.00 1.34 1.69 3/64 20543
/proc/meminfo: memFree=1129720/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=7220 CPUtime=0.3
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 2035 0 0 0 29 1 0 0 19 0 1 0 1143859039 7393280 1700 1992294400 134512640 135151029 4294956240 18446744073709551615 134545640 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 1805 1700 79 155 0 1648 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 7220

[startup+0.701313 s]
/proc/loadavg: 1.00 1.34 1.69 3/64 20543
/proc/meminfo: memFree=1129720/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=8688 CPUtime=0.69
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 2379 0 0 0 68 1 0 0 22 0 1 0 1143859039 8896512 2044 1992294400 134512640 135151029 4294956240 18446744073709551615 134548002 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 2172 2044 79 155 0 2015 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8688

[startup+1.50143 s]
/proc/loadavg: 1.00 1.33 1.69 2/65 20544
/proc/meminfo: memFree=1120816/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=10536 CPUtime=1.49
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 2778 0 0 0 148 1 0 0 25 0 1 0 1143859039 10788864 2443 1992294400 134512640 135151029 4294956240 18446744073709551615 134547929 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 2634 2443 79 155 0 2477 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10536

[startup+3.10166 s]
/proc/loadavg: 1.00 1.33 1.69 2/65 20544
/proc/meminfo: memFree=1120368/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=11252 CPUtime=3.09
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 3094 0 0 0 308 1 0 0 25 0 1 0 1143859039 11522048 2630 1992294400 134512640 135151029 4294956240 18446744073709551615 134546650 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 2813 2630 79 155 0 2656 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11252

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

[startup+3.50172 s]
/proc/loadavg: 1.00 1.33 1.69 2/65 20544
/proc/meminfo: memFree=1119216/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=11912 CPUtime=3.49
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 3269 0 0 0 348 1 0 0 25 0 1 0 1143859039 12197888 2805 1992294400 134512640 135151029 4294956240 18446744073709551615 134555838 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 2978 2805 79 155 0 2821 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 11912

[startup+3.70175 s]
/proc/loadavg: 1.00 1.33 1.69 2/65 20544
/proc/meminfo: memFree=1119216/2055920 swapFree=4175692/4192956
[pid=20543] ppid=20541 vsize=12156 CPUtime=3.69
/proc/20543/stat : 20543 (precosat) R 20541 20543 20477 0 -1 4194304 3328 0 0 0 368 1 0 0 25 0 1 0 1143859039 12447744 2864 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20543/statm: 3039 2864 79 155 0 2882 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 12156

Child status: 20
Real time (s): 3.72545
CPU time (s): 3.72543
CPU user time (s): 3.70744
CPU system time (s): 0.017997
CPU usage (%): 99.9995
Max. virtual memory (cumulated for all children) (KiB): 12156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.70744
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3332
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= 5

runsolver used 0.006998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node30 at 2009-04-03 00:38:58
IDJOB=1553154
IDBENCH=70756
IDSOLVER=507
FILE ID=node30/1553154-1238711938
PBS_JOBID= 9085316
Free space on /tmp= 66340 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor064.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553154-1238711938/watcher-1553154-1238711938 -o /tmp/evaluation-result-1553154-1238711938/solver-1553154-1238711938 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1553154-1238711938.cnf

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

MD5SUM BENCH= 1a151a1e93387c74239b48070e3eed97
RANDOM SEED=738026621

node30.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		: 3000.260
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	: 5931.00
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		: 3000.260
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:       1130136 kB
Buffers:        100332 kB
Cached:         723004 kB
SwapCached:      11092 kB
Active:         277832 kB
Inactive:       558520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1130136 kB
SwapTotal:     4192956 kB
SwapFree:      4175692 kB
Dirty:            1348 kB
Writeback:           0 kB
Mapped:          18660 kB
Slab:            75488 kB
Committed_AS:  3373696 kB
PageTables:       1368 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= 66336 MiB
End job on node30 at 2009-04-03 00:39:02