Trace number 1783890

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 13.6149 13.6192

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
gt-ordering-unsat-gt-045.sat05-1310.reshuffled-07.cnf
MD5SUMae4e3f3661a3c7ad7c7ec30d56d611a1
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark13.6149
Satisfiable
(Un)Satisfiability was proved
Number of variables1980
Number of clauses86175
Sum of the clauses size259380
Maximum clause length44
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2990
Number of clauses of size 385140
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 545

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-1783890-1241897343.cnf
0.00/0.00	c found header 'p cnf 2025 86175'
0.00/0.08	c finished parsing
0.00/0.08	c
0.00/0.08	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.08	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.08	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.08	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.08	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.08	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.08	c
0.00/0.08	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.08	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.08	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.08	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.08	c
0.00/0.08	c starting search after 0.1 seconds
0.00/0.08	c no decision limit
0.07/0.08	c
0.07/0.08	c       original/binary      fixed     eliminated      learned       agility
0.07/0.08	c   seconds        variables     equivalent    conflicts       height       MB
0.07/0.08	c
0.07/0.08	c *    0.1    86175    2025      0     0      0       0      0    0.0   0    5
0.89/0.90	c s    0.9    86175    1980      0     0     45       0      0    0.0   0    5
0.89/0.90	c l    0.9    86175    1980      0     0     45       0  85185    0.0   0    5
0.89/0.91	c R    0.9    86175    1980      0     0     45     102    102  979.6   2    5
0.89/0.92	c R    0.9    86175    1980      0     0     45     212    212  687.4   4    6
0.89/0.96	c R    1.0    86175    1980      0     0     45     814    814  398.6   8    6
0.89/0.98	c B    1.0    86175    1980      0     0     45    1003   1003  353.6   6    6
0.99/1.06	c B    1.1    86175    1980      0     0     45    2003   2003  242.0   5    6
0.99/1.09	c R    1.1    86175    1980      0     0     45    2422   2422  225.6   6    6
1.39/1.41	c R    1.4    86175    1980      0     0     45    6441   6441  177.9   7    8
1.49/1.54	c B    1.5    86175    1980      0     0     45    8009   8009  179.0   7    8
2.10/2.19	c R    2.2    86175    1980      0     0     45   16080  16080  156.6   8   10
2.89/2.91	c B    2.9    86175    1980      0     0     45   24014  24014  145.9  12   12
3.89/3.90	c R    3.9    86175    1980      0     0     45   38536  38536  130.0  15   15
6.19/6.28	c B    6.3    86175    1980      0     0     45   64034  64034  115.8  14   22
7.09/7.16	c s    7.2    86178    1980      0     0     45   73036  73033  110.3  11   21
7.89/7.92	c +    7.9    86178    1980      0     0     45   85185  93703  104.8  14   24
8.09/8.18	c R    8.2    86178    1980      0     0     45   89877  89874  103.1  18   24
9.18/9.27	c +    9.3    86230    1978      2     0     45  106481 103073   97.3  12   23
11.69/11.74	c
11.69/11.74	c       original/binary      fixed     eliminated      learned       agility
11.69/11.74	c   seconds        variables     equivalent    conflicts       height       MB
11.69/11.74	c
11.69/11.74	c +   11.7    86407    1976      4     0     45  133103 113380   89.5  17   25
13.59/13.61	c 0   13.6    88026    1924     56     0     45  155084 113379   83.7  17   25
13.59/13.61	c
13.59/13.61	s UNSATISFIABLE
13.59/13.61	c
13.59/13.61	c 155084 conflicts, 466774 decisions, 124 random
13.59/13.61	c 7 iterations, 452 restarts, 0 skipped
13.59/13.61	c 3 enlarged, 8 shrunken, 1513 rescored, 61 rebiased
13.59/13.61	c 2 simplifications, 0 reductions
13.59/13.61	c
13.59/13.61	c vars: 56 fixed, 0 equiv, 45 elim, 0 merged
13.59/13.61	c elim: 266385 resolutions, 1 phases, 1 rounds
13.59/13.61	c sbst: 0% substituted, 0.0% nots, 0.0% ands, 0.0% xors, 0.0% ites
13.59/13.61	c arty: 0.00 and 0.00 xor average arity
13.59/13.61	c prbe: 23838 probed, 6 phases, 6 rounds
13.59/13.61	c prbe: 0 failed, 0 lifted, 0 merged
13.59/13.61	c sccs: 0 non trivial, 0 fixed, 0 merged
13.59/13.61	c hash: 4 units, 0 merged
13.59/13.61	c mins: 5018620 learned, 10% deleted, 91 strong, 9 depth
13.59/13.61	c subs: 0 forward, 0 backward, 1619 doms
13.59/13.61	c strs: 0 forward, 0 backward
13.59/13.61	c doms: 1619 dominators, 1182 high, 56 low
13.59/13.61	c prps: 5610566 propagations, 0.41 megaprops
13.59/13.61	c
13.59/13.61	c 13.6 seconds, 26 MB max, 9 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-1783890-1241897343/watcher-1783890-1241897343 -o /tmp/evaluation-result-1783890-1241897343/solver-1783890-1241897343 -C 5000 -W 6000 -M 1800 HOME/precosat HOME/instance-1783890-1241897343.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 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: 1.00 1.00 1.00 3/64 25727
/proc/meminfo: memFree=1884992/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=1072 CPUtime=0
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 188 0 0 0 0 0 0 0 20 0 1 0 217767252 1097728 173 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 268 174 63 155 0 111 0

[startup+0.0857711 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25727
/proc/meminfo: memFree=1884992/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=6084 CPUtime=0.07
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 1440 0 0 0 7 0 0 0 20 0 1 0 217767252 6230016 1424 1992294400 134512640 135151029 4294956240 18446744073709551615 134520135 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 1521 1424 74 155 0 1364 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6084

[startup+0.101772 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25727
/proc/meminfo: memFree=1884992/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=7536 CPUtime=0.09
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 1802 0 0 0 8 1 0 0 20 0 1 0 217767252 7716864 1786 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 1884 1786 79 155 0 1727 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7536

[startup+0.301792 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25727
/proc/meminfo: memFree=1884992/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=9064 CPUtime=0.29
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 2735 0 0 0 28 1 0 0 22 0 1 0 217767252 9281536 2175 1992294400 134512640 135151029 4294956240 18446744073709551615 134517335 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 2266 2175 79 155 0 2109 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9064

[startup+0.701833 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25727
/proc/meminfo: memFree=1884992/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=9064 CPUtime=0.69
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 2735 0 0 0 68 1 0 0 25 0 1 0 217767252 9281536 2175 1992294400 134512640 135151029 4294956240 18446744073709551615 134514095 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 2266 2175 79 155 0 2109 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9064

[startup+1.50191 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25728
/proc/meminfo: memFree=1876536/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=9724 CPUtime=1.49
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 2911 0 0 0 148 1 0 0 25 0 1 0 217767252 9957376 2351 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 2431 2351 79 155 0 2274 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9724

[startup+3.10108 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25728
/proc/meminfo: memFree=1873592/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=14808 CPUtime=3.09
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 4162 0 0 0 307 2 0 0 25 0 1 0 217767252 15163392 3602 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 3702 3602 79 155 0 3545 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14808

[startup+6.3014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25728
/proc/meminfo: memFree=1863992/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=23800 CPUtime=6.29
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 6393 0 0 0 626 3 0 0 25 0 1 0 217767252 24371200 5833 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 5950 5833 79 155 0 5793 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 23800

[startup+12.701 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25728
/proc/meminfo: memFree=1856448/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=29228 CPUtime=12.69
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 7735 0 0 0 1265 4 0 0 25 0 1 0 217767252 29929472 7152 1992294400 134512640 135151029 4294956240 18446744073709551615 134551436 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 7307 7152 79 155 0 7150 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 29228

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

[startup+13.1011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25728
/proc/meminfo: memFree=1855936/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=29644 CPUtime=13.09
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 7821 0 0 0 1305 4 0 0 25 0 1 0 217767252 30355456 7238 1992294400 134512640 135151029 4294956240 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 7411 7238 79 155 0 7254 0
Current children cumulated CPU time (s) 13.09
Current children cumulated vsize (KiB) 29644

[startup+13.5011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25728
/proc/meminfo: memFree=1855936/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=29928 CPUtime=13.49
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 7877 0 0 0 1345 4 0 0 25 0 1 0 217767252 30646272 7294 1992294400 134512640 135151029 4294956240 18446744073709551615 134575839 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 7482 7294 79 155 0 7325 0
Current children cumulated CPU time (s) 13.49
Current children cumulated vsize (KiB) 29928

[startup+13.6011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25728
/proc/meminfo: memFree=1855936/2055920 swapFree=4178904/4192956
[pid=25727] ppid=25725 vsize=29928 CPUtime=13.59
/proc/25727/stat : 25727 (precosat) R 25725 25727 25625 0 -1 4194304 7877 0 0 0 1355 4 0 0 25 0 1 0 217767252 30646272 7294 1992294400 134512640 135151029 4294956240 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25727/statm: 7482 7294 79 155 0 7325 0
Current children cumulated CPU time (s) 13.59
Current children cumulated vsize (KiB) 29928

Child status: 20
Real time (s): 13.6192
CPU time (s): 13.6149
CPU user time (s): 13.5639
CPU system time (s): 0.050992
CPU usage (%): 99.9687
Max. virtual memory (cumulated for all children) (KiB): 29928

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.5639
system time used= 0.050992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7878
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= 26

runsolver used 0.020996 second user time and 0.037994 second system time

The end

Launcher Data 

Begin job on node27 at 2009-05-09 21:29:03
IDJOB=1783890
IDBENCH=24722
IDSOLVER=607
FILE ID=node27/1783890-1241897343
PBS_JOBID= 9264764
Free space on /tmp= 66144 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/gt-ordering-unsat-gt-045.sat05-1310.reshuffled-07.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1783890-1241897343/watcher-1783890-1241897343 -o /tmp/evaluation-result-1783890-1241897343/solver-1783890-1241897343 -C 5000 -W 6000 -M 1800  HOME/precosat HOME/instance-1783890-1241897343.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ae4e3f3661a3c7ad7c7ec30d56d611a1
RANDOM SEED=677831795

node27.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		: 2800.234
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	: 5521.40
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		: 2800.234
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:       1885408 kB
Buffers:         35856 kB
Cached:          86636 kB
SwapCached:       8068 kB
Active:          61108 kB
Inactive:        71608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1885408 kB
SwapTotal:     4192956 kB
SwapFree:      4178904 kB
Dirty:            2140 kB
Writeback:           0 kB
Mapped:          14728 kB
Slab:            23664 kB
Committed_AS:   718764 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66144 MiB
End job on node27 at 2009-05-09 21:29:17