Trace number 332744

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, and are wall clock time (not CPU 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
CMUSAT BASE 2007-02-08UNSAT 1.63475 1.6363

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00070.sat05-1324.reshuffled-07.cnf
MD5SUMe72b4e386685e8ae3270a3d69e1ae8da
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.241962
Satisfiable
(Un)Satisfiability was proved
Number of variables257
Number of clauses7375
Sum of the clauses size62500
Maximum clause length11
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 211
Number of clauses of size 346
Number of clauses of size 4119
Number of clauses of size 5300
Number of clauses of size over 56898

Solver Data (download as text)

1.59/1.63	c Number of variables:  257
1.59/1.63	c Number of clauses:    7375
1.59/1.63	c DBreduced=0 GV=101[0]  GL=7473[ 7374,99] Prune=1245 decisions=1143 restart=0 est=1.16884 DB Impl=529[0]  
1.59/1.63	c DBreduced=0 GV=153[0]  GL=7525[ 7374,151] Prune=1492 decisions=1338 restart=1 est=1.16884 DB Impl=880[0]  
1.59/1.63	c DBreduced=0 GV=226[0]  GL=7598[ 7374,224] Prune=1769 decisions=1542 restart=2 est=1.16884 DB Impl=1206[0]  
1.59/1.63	c DBreduced=0 GV=339[0]  GL=7711[ 7374,337] Prune=2368 decisions=2028 restart=3 est=1.16884 DB Impl=1845[0]  
1.59/1.63	c DBreduced=0 GV=508[0]  GL=7880[ 7374,506] Prune=2886 decisions=2377 restart=4 est=1.16884 DB Impl=3035[0]  
1.59/1.63	c DBreduced=0 GV=761[0]  GL=8133[ 7374,759] Prune=4398 decisions=3636 restart=5 est=1.16884 DB Impl=4886[0]  
1.59/1.63	c DBreduced=0 GV=1140[0]  GL=8512[ 7374,1138] Prune=5596 decisions=4455 restart=6 est=1.16884 DB Impl=7029[0]  
1.59/1.63	c DBreduced=0 GV=1709[0]  GL=9081[ 7374,1707] Prune=9133 decisions=7423 restart=7 est=1.16884 DB Impl=11543[0]  
1.59/1.63	c DBreduced=0 GV=2563[0]  GL=9935[ 7374,2561] Prune=11686 decisions=9122 restart=8 est=1.16884 DB Impl=16142[0]  
1.59/1.63	c DBreduced=2 GV=3846[0]  GL=9494[ 7374,2120] Prune=16682 decisions=12835 restart=9 est=1.17035 DB Impl=24832[0]  
1.59/1.63	c DBreduced=3 GV=5767[0]  GL=9851[ 7374,2477] Prune=23618 decisions=17850 restart=10 est=1.55794 DB Impl=36920[0]  
1.59/1.63	c DBreduced=4 GV=8650[0]  GL=11178[ 7374,3804] Prune=34107 decisions=25456 restart=11 est=1.55794 DB Impl=57925[0]  
1.59/1.63	c DBreduced=6 GV=12976[0]  GL=11996[ 7374,4622] Prune=48119 decisions=35142 restart=12 est=1.94705 DB Impl=83926[0]  
1.59/1.63	c DBreduced=9 GV=19462[0]  GL=11803[ 7374,4429] Prune=71614 decisions=52151 restart=13 est=1.94705 DB Impl=132363[0]  
1.59/1.63	c DBreduced=12 GV=29193[0]  GL=13228[ 7374,5854] Prune=107977 decisions=78783 restart=14 est=1.94706 DB Impl=203732[0]  
1.59/1.63	c DBreduced=15 GV=43791[0]  GL=17111[ 7374,9737] Prune=155770 decisions=111978 restart=15 est=1.94858 DB Impl=305763[0]  
1.59/1.63	c #Total time (in seconds): 1.63075
1.59/1.63	c #Memory used (in MB): 5.42578
1.59/1.63	c 
1.59/1.63	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node9/watcher-332744-1173488535 -o ROOT/results/node9/solver-332744-1173488535 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332744-1173488535/cmusat_base /tmp/evaluation/332744-1173488535/instance-332744-1173488535.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): 2400 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: 8.26 7.30 4.55 3/83 14451
/proc/meminfo: memFree=1634424/2055920 swapFree=4152252/4192956
[pid=14451] ppid=14449 vsize=2492 CPUtime=0
/proc/14451/stat : 14451 (cmusat_base) R 14449 14451 12813 0 -1 4194304 227 0 0 0 0 0 0 0 18 0 1 0 368808156 2551808 209 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134564490 0 0 4096 35 0 0 0 17 1 0 0
/proc/14451/statm: 623 210 90 241 0 379 0

[startup+0.0601729 s]
/proc/loadavg: 8.26 7.30 4.55 3/83 14451
/proc/meminfo: memFree=1634424/2055920 swapFree=4152252/4192956
[pid=14451] ppid=14449 vsize=3436 CPUtime=0.05
/proc/14451/stat : 14451 (cmusat_base) R 14449 14451 12813 0 -1 4194304 485 0 0 0 5 0 0 0 18 0 1 0 368808156 3518464 467 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134564250 0 0 4096 35 0 0 0 17 1 0 0
/proc/14451/statm: 859 467 110 241 0 615 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3436

[startup+0.101182 s]
/proc/loadavg: 8.26 7.30 4.55 3/83 14451
/proc/meminfo: memFree=1634424/2055920 swapFree=4152252/4192956
[pid=14451] ppid=14449 vsize=3436 CPUtime=0.09
/proc/14451/stat : 14451 (cmusat_base) R 14449 14451 12813 0 -1 4194304 508 0 0 0 9 0 0 0 18 0 1 0 368808156 3518464 490 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 135064935 0 0 4096 35 0 0 0 17 1 0 0
/proc/14451/statm: 859 490 110 241 0 615 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3436

[startup+0.30122 s]
/proc/loadavg: 8.26 7.30 4.55 3/83 14451
/proc/meminfo: memFree=1634424/2055920 swapFree=4152252/4192956
[pid=14451] ppid=14449 vsize=3928 CPUtime=0.29
/proc/14451/stat : 14451 (cmusat_base) R 14449 14451 12813 0 -1 4194304 648 0 0 0 29 0 0 0 19 0 1 0 368808156 4022272 630 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560049 0 0 4096 35 0 0 0 17 1 0 0
/proc/14451/statm: 982 630 110 241 0 738 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3928

[startup+0.701297 s]
/proc/loadavg: 8.26 7.30 4.55 3/83 14451
/proc/meminfo: memFree=1634424/2055920 swapFree=4152252/4192956
[pid=14451] ppid=14449 vsize=4360 CPUtime=0.69
/proc/14451/stat : 14451 (cmusat_base) R 14449 14451 12813 0 -1 4194304 749 0 0 0 69 0 0 0 22 0 1 0 368808156 4464640 731 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 135080254 0 0 4096 35 0 0 0 17 1 0 0
/proc/14451/statm: 1090 731 111 241 0 846 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4360

[startup+1.50145 s]
/proc/loadavg: 8.26 7.30 4.55 2/84 14452
/proc/meminfo: memFree=1631088/2055920 swapFree=4152252/4192956
[pid=14451] ppid=14449 vsize=5548 CPUtime=1.49
/proc/14451/stat : 14451 (cmusat_base) R 14449 14451 12813 0 -1 4194304 1127 0 0 0 149 0 0 0 25 0 1 0 368808156 5681152 997 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134552180 0 0 4096 35 0 0 0 17 1 0 0
/proc/14451/statm: 1387 997 111 241 0 1143 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5548

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

[startup+1.60147 s]
/proc/loadavg: 8.26 7.30 4.55 2/84 14452
/proc/meminfo: memFree=1631088/2055920 swapFree=4152252/4192956
[pid=14451] ppid=14449 vsize=5556 CPUtime=1.59
/proc/14451/stat : 14451 (cmusat_base) R 14449 14451 12813 0 -1 4194304 1172 0 0 0 159 0 0 0 25 0 1 0 368808156 5689344 1005 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559995 0 0 4096 35 0 0 0 17 1 0 0
/proc/14451/statm: 1389 1005 111 241 0 1145 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 5556

Child status: 20
Real time (s): 1.6363
CPU time (s): 1.63475
CPU user time (s): 1.63075
CPU system time (s): 0.003999
CPU usage (%): 99.9055
Max. virtual memory (cumulated for all children) (KiB): 5556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.63075
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1181
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= 8
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node9 on Sat Mar 10 01:02:15 UTC 2007

IDJOB= 332744
IDBENCH= 24587
IDSOLVER= 120
FILE ID= node9/332744-1173488535

PBS_JOBID= 4101080

Free space on /tmp= 66436 MiB

SOLVER NAME= CMUSAT BASE 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00070.sat05-1324.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332744-1173488535/cmusat_base /tmp/evaluation/332744-1173488535/instance-332744-1173488535.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-332744-1173488535 -o ROOT/results/node9/solver-332744-1173488535 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332744-1173488535/cmusat_base /tmp/evaluation/332744-1173488535/instance-332744-1173488535.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  e72b4e386685e8ae3270a3d69e1ae8da

RANDOM SEED= 54330254

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node9.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.263
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		: 3000.263
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:       1634832 kB
Buffers:         46968 kB
Cached:         284792 kB
SwapCached:       8784 kB
Active:         160728 kB
Inactive:       194976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1634832 kB
SwapTotal:     4192956 kB
SwapFree:      4152252 kB
Dirty:            2700 kB
Writeback:           0 kB
Mapped:          31336 kB
Slab:            50556 kB
Committed_AS:  1466932 kB
PageTables:       1924 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= 66436 MiB

End job on node9 on Sat Mar 10 01:02:17 UTC 2007