Trace number 1773391

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 1.78973 1.79087

General information on the benchmark

Namehoons-vbmc-lucky7.cnf
MD5SUMe05028f569e580a3335aeab2d092cf1f
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.14083
Satisfiable
(Un)Satisfiability was proved
Number of variables8503
Number of clauses25116
Sum of the clauses size58576
Maximum clause length3
Minimum clause length1
Number of clauses of size 121
Number of clauses of size 216730
Number of clauses of size 38365
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-1773391-1241184012.cnf
0.00/0.00	c found header 'p cnf 8503 25116'
0.00/0.03	c finished parsing
0.00/0.03	c
0.00/0.03	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.03	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.03	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.03	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.03	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.03	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.03	c
0.00/0.03	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.03	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.03	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.03	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.03	c
0.00/0.03	c starting search after 0.0 seconds
0.00/0.03	c no decision limit
0.00/0.03	c
0.00/0.03	c       original/binary      fixed     eliminated      learned       agility
0.00/0.03	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.03	c
0.00/0.03	c *    0.0    25054    8481     22     0      0       0      0    0.0   0    2
0.29/0.31	c -    0.3    15630    1451    711   375   5966       0   1000    0.0   0    3
0.29/0.31	c -    0.3    15430    1401    711   375   6016       0   1000    0.0   0    3
0.29/0.35	c s    0.4     9106    1372    711   375   6045       0      0    0.0   0    2
0.29/0.35	c l    0.4     9106    1372    711   375   6045       0   6724    0.0   0    2
0.29/0.36	c R    0.4     9172    1372    711   375   6045     100     98   70.5  10    2
0.29/0.36	c R    0.4     9187    1372    711   375   6045     201    199   51.0  15    2
0.29/0.39	c R    0.4     9225    1372    711   375   6045     801    793   38.3  18    2
0.39/0.40	c B    0.4     9232    1372    711   375   6045    1000    991   39.4  17    2
0.39/0.46	c B    0.5     9497    1356    725   377   6045    2001   1972   38.9  16    2
0.49/0.56	c s    0.6     9478    1352    728   378   6045    3512   3412   35.9  19    2
0.49/0.56	c -    0.6     9478    1352    728   378   6045    3512   6590   35.9  19    2
0.69/0.70	c R    0.7     9677    1352    728   378   6045    5635   5515   33.6  21    2
0.69/0.78	c +    0.8     9760    1352    728   378   6045    6592   7249   33.9  15    2
0.89/0.90	c s    0.9     9798    1350    729   379   6045    7932   7239   32.1  20    2
0.89/0.91	c B    0.9     9799    1350    729   379   6045    8003   7259   32.0  18    2
0.89/0.93	c +    0.9     9799    1350    729   379   6045    8240   7973   31.5  15    2
1.09/1.12	c +    1.1     9952    1345    731   382   6045   10303   8770   29.2  21    3
1.29/1.35	c +    1.4    10168    1344    732   382   6045   12875   9647   26.7  19    3
1.39/1.40	c
1.39/1.40	c       original/binary      fixed     eliminated      learned       agility
1.39/1.40	c   seconds        variables     equivalent    conflicts       height       MB
1.39/1.40	c
1.39/1.40	c s    1.4    10009    1344    732   382   6045   13211   8473   26.5  22    2
1.59/1.64	c +    1.6    10082    1343    732   383   6045   16091  10611   24.4  18    3
1.69/1.78	c 0    1.8    11745    1089    985   384   6045   17500  10610   23.5  19    3
1.69/1.78	c
1.69/1.78	s UNSATISFIABLE
1.69/1.78	c
1.69/1.78	c 17500 conflicts, 33555 decisions, 1 random
1.69/1.78	c 14 iterations, 96 restarts, 0 skipped
1.69/1.78	c 5 enlarged, 405 shrunken, 171 rescored, 11 rebiased
1.69/1.78	c 4 simplifications, 0 reductions
1.69/1.78	c
1.69/1.78	c vars: 985 fixed, 384 equiv, 6045 elim, 435 merged
1.69/1.78	c elim: 108248 resolutions, 1 phases, 1 rounds
1.69/1.78	c sbst: 97% substituted, 0.8% nots, 91.9% ands, 0.9% xors, 6.3% ites
1.69/1.78	c arty: 2.16 and 2.00 xor average arity
1.69/1.78	c prbe: 16394 probed, 3 phases, 3 rounds
1.69/1.78	c prbe: 25 failed, 116 lifted, 116 merged
1.69/1.78	c sccs: 3 non trivial, 0 fixed, 11 merged
1.69/1.78	c hash: 12 units, 308 merged
1.69/1.78	c mins: 204312 learned, 26% deleted, 54 strong, 38 depth
1.69/1.78	c subs: 201 forward, 504 backward, 1620 doms
1.69/1.78	c strs: 663 forward, 345 backward
1.69/1.78	c doms: 2654 dominators, 1249 high, 42 low
1.69/1.78	c prps: 2572879 propagations, 1.44 megaprops
1.69/1.78	c
1.69/1.78	c 1.8 seconds, 3 MB max, 2 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-1773391-1241184012/watcher-1773391-1241184012 -o /tmp/evaluation-result-1773391-1241184012/solver-1773391-1241184012 -C 10000 -W 12000 -M 1800 HOME/precosat HOME/instance-1773391-1241184012.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): 12000 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: 0.99 0.98 0.96 3/64 27997
/proc/meminfo: memFree=1178352/2055920 swapFree=4181168/4192956
[pid=27997] ppid=27995 vsize=1672 CPUtime=0
/proc/27997/stat : 27997 (precosat) R 27995 27997 27933 0 -1 4194304 304 0 0 0 0 0 0 0 18 0 1 0 146429745 1712128 289 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/27997/statm: 418 290 64 155 0 261 0

[startup+0.074051 s]
/proc/loadavg: 0.99 0.98 0.96 3/64 27997
/proc/meminfo: memFree=1178352/2055920 swapFree=4181168/4192956
[pid=27997] ppid=27995 vsize=3776 CPUtime=0.06
/proc/27997/stat : 27997 (precosat) R 27995 27997 27933 0 -1 4194304 904 0 0 0 6 0 0 0 18 0 1 0 146429745 3866624 855 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/27997/statm: 944 855 79 155 0 787 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3776

[startup+0.101054 s]
/proc/loadavg: 0.99 0.98 0.96 3/64 27997
/proc/meminfo: memFree=1178352/2055920 swapFree=4181168/4192956
[pid=27997] ppid=27995 vsize=3908 CPUtime=0.09
/proc/27997/stat : 27997 (precosat) R 27995 27997 27933 0 -1 4194304 934 0 0 0 9 0 0 0 18 0 1 0 146429745 4001792 885 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/27997/statm: 977 885 79 155 0 820 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3908

[startup+0.301092 s]
/proc/loadavg: 0.99 0.98 0.96 3/64 27997
/proc/meminfo: memFree=1178352/2055920 swapFree=4181168/4192956
[pid=27997] ppid=27995 vsize=4880 CPUtime=0.29
/proc/27997/stat : 27997 (precosat) R 27995 27997 27933 0 -1 4194304 1338 0 0 0 29 0 0 0 19 0 1 0 146429745 4997120 1102 1992294400 134512640 135151029 4294956240 18446744073709551615 134548109 0 0 4096 17442 0 0 0 17 1 0 0
/proc/27997/statm: 1220 1102 79 155 0 1063 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4880

[startup+0.701167 s]
/proc/loadavg: 0.99 0.98 0.96 3/64 27997
/proc/meminfo: memFree=1178352/2055920 swapFree=4181168/4192956
[pid=27997] ppid=27995 vsize=5156 CPUtime=0.69
/proc/27997/stat : 27997 (precosat) R 27995 27997 27933 0 -1 4194304 1375 0 0 0 69 0 0 0 22 0 1 0 146429745 5279744 1139 1992294400 134512640 135151029 4294956240 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/27997/statm: 1289 1139 79 155 0 1132 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5156

[startup+1.50132 s]
/proc/loadavg: 0.99 0.98 0.96 2/65 27998
/proc/meminfo: memFree=1174056/2055920 swapFree=4181168/4192956
[pid=27997] ppid=27995 vsize=5156 CPUtime=1.49
/proc/27997/stat : 27997 (precosat) R 27995 27997 27933 0 -1 4194304 1375 0 0 0 149 0 0 0 25 0 1 0 146429745 5279744 1139 1992294400 134512640 135151029 4294956240 18446744073709551615 134552130 0 0 4096 17442 0 0 0 17 1 0 0
/proc/27997/statm: 1289 1139 79 155 0 1132 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5156

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

[startup+1.70136 s]
/proc/loadavg: 0.99 0.98 0.96 2/65 27998
/proc/meminfo: memFree=1174056/2055920 swapFree=4181168/4192956
[pid=27997] ppid=27995 vsize=5156 CPUtime=1.69
/proc/27997/stat : 27997 (precosat) R 27995 27997 27933 0 -1 4194304 1375 0 0 0 169 0 0 0 25 0 1 0 146429745 5279744 1139 1992294400 134512640 135151029 4294956240 18446744073709551615 134554777 0 0 4096 17442 0 0 0 17 1 0 0
/proc/27997/statm: 1289 1139 79 155 0 1132 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 5156

Child status: 20
Real time (s): 1.79087
CPU time (s): 1.78973
CPU user time (s): 1.77973
CPU system time (s): 0.009998
CPU usage (%): 99.9364
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.77973
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1376
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 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node37 at 2009-05-01 15:20:12
IDJOB=1773391
IDBENCH=69576
IDSOLVER=607
FILE ID=node37/1773391-1241184012
PBS_JOBID= 9224597
Free space on /tmp= 66540 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT_RACE08/cnf/hoons-vbmc-lucky7.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773391-1241184012/watcher-1773391-1241184012 -o /tmp/evaluation-result-1773391-1241184012/solver-1773391-1241184012 -C 10000 -W 12000 -M 1800  HOME/precosat HOME/instance-1773391-1241184012.cnf

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

MD5SUM BENCH= e05028f569e580a3335aeab2d092cf1f
RANDOM SEED=1666003599

node37.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:       1178768 kB
Buffers:         66696 kB
Cached:         715340 kB
SwapCached:       5608 kB
Active:         107848 kB
Inactive:       682120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1178768 kB
SwapTotal:     4192956 kB
SwapFree:      4181168 kB
Dirty:            1064 kB
Writeback:           0 kB
Mapped:          13616 kB
Slab:            73284 kB
Committed_AS:   799468 kB
PageTables:       1380 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= 66540 MiB
End job on node37 at 2009-05-01 15:20:14