Trace number 1730118

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 12.913 12.918

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 benchmark12.913
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-1730118-1240756152.cnf
0.00/0.00	c found header 'p cnf 2025 86175'
0.05/0.07	c finished parsing
0.05/0.07	c
0.05/0.07	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.05/0.07	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.05/0.07	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.05/0.07	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.05/0.07	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.05/0.07	c --random=1 --spread=2000 --seed=0 --skip=25
0.05/0.07	c
0.05/0.07	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.05/0.07	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.05/0.07	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.05/0.07	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.05/0.07	c
0.05/0.07	c starting search after 0.1 seconds
0.05/0.07	c no decision limit
0.05/0.07	c
0.05/0.07	c       original/binary      fixed     eliminated      learned       agility
0.05/0.07	c   seconds        variables     equivalent    conflicts       height       MB
0.05/0.07	c
0.05/0.07	c *    0.1    86175    2025      0     0      0       0      0    0.0   0    5
0.79/0.86	c s    0.9    86175    1980      0     0     45       0      0    0.0   0    5
0.79/0.86	c l    0.9    86175    1980      0     0     45       0  85185    0.0   0    5
0.79/0.87	c R    0.9    86175    1980      0     0     45     102    102  979.6   2    5
0.79/0.88	c R    0.9    86175    1980      0     0     45     212    212  687.4   4    6
0.89/0.92	c R    0.9    86175    1980      0     0     45     814    814  398.6   8    6
0.89/0.93	c B    0.9    86175    1980      0     0     45    1003   1003  353.6   6    6
0.99/1.01	c B    1.0    86175    1980      0     0     45    2003   2003  242.0   5    6
0.99/1.04	c R    1.0    86175    1980      0     0     45    2422   2422  225.6   6    6
1.29/1.34	c R    1.3    86175    1980      0     0     45    6441   6441  177.9   7    8
1.39/1.46	c B    1.5    86175    1980      0     0     45    8009   8009  179.0   7    8
1.99/2.08	c R    2.1    86175    1980      0     0     45   16080  16080  156.6   8   10
2.69/2.76	c B    2.8    86175    1980      0     0     45   24014  24014  145.9  12   12
3.69/3.70	c R    3.7    86175    1980      0     0     45   38536  38536  130.0  15   15
5.89/5.96	c B    6.0    86175    1980      0     0     45   64034  64034  115.8  14   22
6.79/6.80	c s    6.8    86178    1980      0     0     45   73036  73033  110.3  11   21
7.48/7.51	c +    7.5    86178    1980      0     0     45   85185  93703  104.8  14   24
7.69/7.75	c R    7.8    86178    1980      0     0     45   89877  89874  103.1  18   24
8.69/8.78	c +    8.8    86230    1978      2     0     45  106481 103073   97.3  12   23
11.09/11.13	c
11.09/11.13	c       original/binary      fixed     eliminated      learned       agility
11.09/11.13	c   seconds        variables     equivalent    conflicts       height       MB
11.09/11.13	c
11.09/11.13	c +   11.1    86407    1976      4     0     45  133103 113380   89.5  17   25
12.89/12.91	c 0   12.9    88026    1924     56     0     45  155084 113379   83.7  17   25
12.89/12.91	c
12.89/12.91	s UNSATISFIABLE
12.89/12.91	c
12.89/12.91	c 155084 conflicts, 466774 decisions, 124 random
12.89/12.91	c 7 iterations, 452 restarts, 0 skipped
12.89/12.91	c 3 enlarged, 8 shrunken, 1513 rescored, 61 rebiased
12.89/12.91	c 2 simplifications, 0 reductions
12.89/12.91	c
12.89/12.91	c vars: 56 fixed, 0 equiv, 45 elim, 0 merged
12.89/12.91	c elim: 266385 resolutions, 1 phases, 1 rounds
12.89/12.91	c sbst: 0% substituted, 0.0% nots, 0.0% ands, 0.0% xors, 0.0% ites
12.89/12.91	c arty: 0.00 and 0.00 xor average arity
12.89/12.91	c prbe: 23838 probed, 6 phases, 6 rounds
12.89/12.91	c prbe: 0 failed, 0 lifted, 0 merged
12.89/12.91	c sccs: 0 non trivial, 0 fixed, 0 merged
12.89/12.91	c hash: 4 units, 0 merged
12.89/12.91	c mins: 5018620 learned, 10% deleted, 91 strong, 9 depth
12.89/12.91	c subs: 0 forward, 0 backward, 1619 doms
12.89/12.91	c strs: 0 forward, 0 backward
12.89/12.91	c doms: 1619 dominators, 1182 high, 56 low
12.89/12.91	c prps: 5610566 propagations, 0.43 megaprops
12.89/12.91	c
12.89/12.91	c 12.9 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-1730118-1240756152/watcher-1730118-1240756152 -o /tmp/evaluation-result-1730118-1240756152/solver-1730118-1240756152 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1730118-1240756152.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 3/64 8633
/proc/meminfo: memFree=1748752/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=1204 CPUtime=0
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 192 0 0 0 0 0 0 0 20 0 1 0 103644067 1232896 177 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 301 178 63 155 0 144 0

[startup+0.061689 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 8633
/proc/meminfo: memFree=1748752/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=5296 CPUtime=0.05
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 1226 0 0 0 5 0 0 0 20 0 1 0 103644067 5423104 1211 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 1324 1212 63 155 0 1167 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5296

[startup+0.101693 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 8633
/proc/meminfo: memFree=1748752/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=7536 CPUtime=0.09
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 1806 0 0 0 9 0 0 0 20 0 1 0 103644067 7716864 1790 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 1884 1791 79 155 0 1727 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7536

[startup+0.301715 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 8633
/proc/meminfo: memFree=1748752/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=9064 CPUtime=0.29
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 2735 0 0 0 28 1 0 0 22 0 1 0 103644067 9281536 2175 1992294400 134512640 135151029 4294956224 18446744073709551615 134514095 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 2266 2175 79 155 0 2109 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9064

[startup+0.701763 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 8633
/proc/meminfo: memFree=1748752/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=9064 CPUtime=0.69
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 2735 0 0 0 68 1 0 0 25 0 1 0 103644067 9281536 2175 1992294400 134512640 135151029 4294956224 18446744073709551615 134526328 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 2266 2175 79 155 0 2109 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9064

[startup+1.50186 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 8634
/proc/meminfo: memFree=1740296/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=10120 CPUtime=1.49
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 3002 0 0 0 148 1 0 0 25 0 1 0 103644067 10362880 2442 1992294400 134512640 135151029 4294956224 18446744073709551615 134698015 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 2530 2442 79 155 0 2373 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10120

[startup+3.10104 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 8634
/proc/meminfo: memFree=1736968/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=15336 CPUtime=3.09
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 4292 0 0 0 307 2 0 0 25 0 1 0 103644067 15704064 3732 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 3834 3732 79 155 0 3677 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 15336

[startup+6.30142 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 8634
/proc/meminfo: memFree=1726992/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=24612 CPUtime=6.29
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 6595 0 0 0 626 3 0 0 25 0 1 0 103644067 25202688 6035 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 6153 6035 79 155 0 5996 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 24612

[startup+12.7022 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 8634
/proc/meminfo: memFree=1720016/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=29776 CPUtime=12.69
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 7866 0 0 0 1265 4 0 0 25 0 1 0 103644067 30490624 7283 1992294400 134512640 135151029 4294956224 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 7444 7283 79 155 0 7287 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 29776

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

[startup+12.9012 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 8634
/proc/meminfo: memFree=1720016/2055920 swapFree=4186716/4192956
[pid=8633] ppid=8631 vsize=29928 CPUtime=12.89
/proc/8633/stat : 8633 (precosat) R 8631 8633 8299 0 -1 4194304 7877 0 0 0 1285 4 0 0 25 0 1 0 103644067 30646272 7294 1992294400 134512640 135151029 4294956224 18446744073709551615 134555084 0 0 4096 17442 0 0 0 17 1 0 0
/proc/8633/statm: 7482 7294 79 155 0 7325 0
Current children cumulated CPU time (s) 12.89
Current children cumulated vsize (KiB) 29928

Child status: 20
Real time (s): 12.918
CPU time (s): 12.913
CPU user time (s): 12.863
CPU system time (s): 0.049992
CPU usage (%): 99.9619
Max. virtual memory (cumulated for all children) (KiB): 29928

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.863
system time used= 0.049992
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= 27

runsolver used 0.016997 second user time and 0.029995 second system time

The end

Launcher Data 

Begin job on node75 at 2009-04-26 16:29:12
IDJOB=1730118
IDBENCH=24722
IDSOLVER=507
FILE ID=node75/1730118-1240756152
PBS_JOBID= 9187079
Free space on /tmp= 66436 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-1730118-1240756152/watcher-1730118-1240756152 -o /tmp/evaluation-result-1730118-1240756152/solver-1730118-1240756152 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1730118-1240756152.cnf

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

MD5SUM BENCH= ae4e3f3661a3c7ad7c7ec30d56d611a1
RANDOM SEED=803256343

node75.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		: 3000.213
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		: 3000.213
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1749168 kB
Buffers:         29332 kB
Cached:         201640 kB
SwapCached:       3016 kB
Active:          72580 kB
Inactive:       169220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1749168 kB
SwapTotal:     4192956 kB
SwapFree:      4186716 kB
Dirty:            2152 kB
Writeback:           0 kB
Mapped:          19020 kB
Slab:            50832 kB
Committed_AS:   279456 kB
PageTables:       1416 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= 66432 MiB
End job on node75 at 2009-04-26 16:29:25