Trace number 1555598

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 4.25935 4.26086

General information on the benchmark

NameAPPLICATIONS/
bitverif/maxand/maxand064.cnf
MD5SUMb2d2617ddc348aef0d35df3c8f228dcb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.81857
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-1555598-1238742037.cnf
0.00/0.00	c found header 'p cnf 14578 42581'
0.00/0.06	c finished parsing
0.00/0.06	c
0.00/0.06	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.06	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.06	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.06	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.06	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.06	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.06	c
0.00/0.06	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.06	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.06	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.06	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.06	c
0.00/0.06	c starting search after 0.1 seconds
0.00/0.06	c no decision limit
0.00/0.06	c
0.00/0.06	c       original/binary      fixed     eliminated      learned       agility
0.00/0.06	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.06	c
0.00/0.06	c *    0.1    42579   14576      2     0      0       0      0    0.0   0    4
1.79/1.82	c s    1.8    14623    1045     24   150  13359       0      0    0.0   0    4
1.79/1.82	c l    1.8    14623    1045     24   150  13359       0   9385    0.0   0    4
1.79/1.84	c R    1.8    14623    1045     24   150  13359     100    100  249.8   1    4
1.79/1.85	c R    1.9    14629    1045     24   150  13359     200    199  169.0   3    4
1.89/1.91	c R    1.9    14638    1045     24   150  13359     802    798  194.4   6    5
1.89/1.94	c B    1.9    14640    1045     24   150  13359    1000    995  206.0   4    5
1.99/2.03	c B    2.0    14677    1044     25   150  13359    2000   1994  208.9   6    5
2.20/2.27	c R    2.3    14740    1041     28   150  13359    4448   4435  190.5   6    7
2.59/2.63	c s    2.6    14782    1040     29   150  13359    7301   7272  185.0   6    7
2.69/2.71	c B    2.7    14785    1040     29   150  13359    8002   7973  183.5   9    8
2.79/2.88	c +    2.9    14818    1038     31   150  13359    9385  10323  181.0   6    9
3.09/3.17	c +    3.2    14836    1038     31   150  13359   11734  11355  178.8   9   10
4.19/4.25	c 0    4.3    29793     358    533   328  13359   13818  11354  175.7   6   11
4.19/4.25	c
4.19/4.25	s UNSATISFIABLE
4.19/4.25	c
4.19/4.25	c 13818 conflicts, 111155 decisions, 72 random
4.19/4.25	c 9 iterations, 77 restarts, 0 skipped
4.19/4.25	c 2 enlarged, 15 shrunken, 134 rescored, 8 rebiased
4.19/4.25	c 2 simplifications, 0 reductions
4.19/4.25	c
4.19/4.25	c vars: 533 fixed, 328 equiv, 13359 elim, 396 merged
4.19/4.25	c elim: 859747 resolutions, 1 phases, 1 rounds
4.19/4.25	c sbst: 65% substituted, 0.3% nots, 99.7% ands, 0.0% xors, 0.0% ites
4.19/4.25	c arty: 2.36 and 0.00 xor average arity
4.19/4.25	c prbe: 70422 probed, 2 phases, 38 rounds
4.19/4.25	c prbe: 224 failed, 31 lifted, 0 merged
4.19/4.25	c sccs: 0 non trivial, 0 fixed, 0 merged
4.19/4.25	c hash: 12 units, 396 merged
4.19/4.25	c mins: 1765009 learned, 10% deleted, 5 strong, 71 depth
4.19/4.25	c subs: 93 forward, 14 backward, 4409 doms
4.19/4.25	c strs: 462 forward, 7 backward
4.19/4.25	c doms: 5357 dominators, 226 high, 15 low
4.19/4.25	c prps: 1713685 propagations, 0.40 megaprops
4.19/4.25	c
4.19/4.25	c 4.3 seconds, 12 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-1555598-1238742037/watcher-1555598-1238742037 -o /tmp/evaluation-result-1555598-1238742037/solver-1555598-1238742037 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1555598-1238742037.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: 0.99 0.97 0.99 3/70 20397
/proc/meminfo: memFree=1189384/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=2036 CPUtime=0
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 409 0 0 0 0 0 0 0 18 0 1 0 1146868818 2084864 394 1992294400 134512640 135151029 4294956240 18446744073709551615 134697845 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 509 395 63 155 0 352 0

[startup+0.104704 s]
/proc/loadavg: 0.99 0.97 0.99 3/70 20397
/proc/meminfo: memFree=1189384/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=5600 CPUtime=0.09
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 1338 0 0 0 9 0 0 0 18 0 1 0 1146868818 5734400 1289 1992294400 134512640 135151029 4294956240 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 1400 1289 79 155 0 1243 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5600

[startup+0.201714 s]
/proc/loadavg: 0.99 0.97 0.99 3/70 20397
/proc/meminfo: memFree=1189384/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=5852 CPUtime=0.19
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 1593 0 0 0 19 0 0 0 18 0 1 0 1146868818 5992448 1350 1992294400 134512640 135151029 4294956240 18446744073709551615 134684996 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 1463 1350 79 155 0 1306 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 5852

[startup+0.301724 s]
/proc/loadavg: 0.99 0.97 0.99 3/70 20397
/proc/meminfo: memFree=1189384/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=7204 CPUtime=0.29
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 2029 0 0 0 29 0 0 0 19 0 1 0 1146868818 7376896 1694 1992294400 134512640 135151029 4294956240 18446744073709551615 134519618 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 1801 1694 79 155 0 1644 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7204

[startup+0.701771 s]
/proc/loadavg: 0.99 0.97 0.99 3/70 20397
/proc/meminfo: memFree=1189384/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=8692 CPUtime=0.69
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 2380 0 0 0 68 1 0 0 22 0 1 0 1146868818 8900608 2045 1992294400 134512640 135151029 4294956240 18446744073709551615 134548134 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 2173 2045 79 155 0 2016 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8692

[startup+1.50186 s]
/proc/loadavg: 0.99 0.97 0.99 2/71 20398
/proc/meminfo: memFree=1180224/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=10540 CPUtime=1.49
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 2794 0 0 0 148 1 0 0 25 0 1 0 1146868818 10792960 2459 1992294400 134512640 135151029 4294956240 18446744073709551615 134573872 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 2635 2459 79 155 0 2478 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10540

[startup+3.10105 s]
/proc/loadavg: 0.99 0.97 0.99 2/71 20398
/proc/meminfo: memFree=1180032/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=11480 CPUtime=3.09
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 3147 0 0 0 308 1 0 0 25 0 1 0 1146868818 11755520 2683 1992294400 134512640 135151029 4294956240 18446744073709551615 134551445 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 2870 2683 79 155 0 2713 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11480

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

[startup+3.20106 s]
/proc/loadavg: 0.99 0.97 0.99 2/71 20398
/proc/meminfo: memFree=1180032/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=11744 CPUtime=3.19
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 3216 0 0 0 318 1 0 0 25 0 1 0 1146868818 12025856 2752 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 2936 2752 79 155 0 2779 0
Current children cumulated CPU time (s) 3.19
Current children cumulated vsize (KiB) 11744

[startup+4.00115 s]
/proc/loadavg: 0.99 0.97 0.99 2/71 20398
/proc/meminfo: memFree=1178176/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=12612 CPUtime=3.99
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 3436 0 0 0 398 1 0 0 25 0 1 0 1146868818 12914688 2972 1992294400 134512640 135151029 4294956240 18446744073709551615 134557097 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 3153 2972 79 155 0 2996 0
Current children cumulated CPU time (s) 3.99
Current children cumulated vsize (KiB) 12612

[startup+4.20117 s]
/proc/loadavg: 0.99 0.97 0.99 2/71 20398
/proc/meminfo: memFree=1178176/2055920 swapFree=4174016/4192956
[pid=20397] ppid=20395 vsize=12984 CPUtime=4.19
/proc/20397/stat : 20397 (precosat) R 20395 20397 20326 0 -1 4194304 3518 0 0 0 418 1 0 0 25 0 1 0 1146868818 13295616 3054 1992294400 134512640 135151029 4294956240 18446744073709551615 134557017 0 0 4096 17442 0 0 0 17 1 0 0
/proc/20397/statm: 3246 3054 79 155 0 3089 0
Current children cumulated CPU time (s) 4.19
Current children cumulated vsize (KiB) 12984

Child status: 20
Real time (s): 4.26086
CPU time (s): 4.25935
CPU user time (s): 4.23935
CPU system time (s): 0.019996
CPU usage (%): 99.9647
Max. virtual memory (cumulated for all children) (KiB): 12984

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.23935
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3519
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= 12

runsolver used 0.005999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node74 at 2009-04-03 09:00:38
IDJOB=1555598
IDBENCH=70803
IDSOLVER=507
FILE ID=node74/1555598-1238742037
PBS_JOBID= 9085425
Free space on /tmp= 103236 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/APPLICATIONS/bitverif/maxand/maxand064.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1555598-1238742037/watcher-1555598-1238742037 -o /tmp/evaluation-result-1555598-1238742037/solver-1555598-1238742037 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1555598-1238742037.cnf

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

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=1927741398

node74.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		: 3000.236
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		: 3000.236
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:       1189864 kB
Buffers:         96124 kB
Cached:         676852 kB
SwapCached:       8140 kB
Active:         286064 kB
Inactive:       496620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1189864 kB
SwapTotal:     4192956 kB
SwapFree:      4174016 kB
Dirty:            1340 kB
Writeback:           0 kB
Mapped:          15056 kB
Slab:            68600 kB
Committed_AS:  2573548 kB
PageTables:       1852 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 103236 MiB
End job on node74 at 2009-04-03 09:00:42