Trace number 316435

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 52.355 52.3908

General information on the benchmark

Namecrafted/spence/
medium/s65-100.cnf
MD5SUMc783ce32e47f2d2dd661851cca52c3a7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.61445
Satisfiable
(Un)Satisfiability was proved
Number of variables65
Number of clauses140
Sum of the clauses size420
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3140
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

52.26/52.38	c Number of variables:  65
52.26/52.38	c Number of clauses:    140
52.26/52.38	c DBreduced=0 GV=102[0]  GL=242[ 140,102] Prune=227 decisions=125 restart=0 est=0.0240385 DB Impl=2164[0]  
52.26/52.38	c DBreduced=0 GV=151[0]  GL=291[ 140,151] Prune=342 decisions=191 restart=1 est=0.0240385 DB Impl=3090[0]  
52.26/52.38	c DBreduced=0 GV=226[0]  GL=366[ 140,226] Prune=523 decisions=297 restart=2 est=0.0240497 DB Impl=5043[0]  
52.26/52.38	c DBreduced=0 GV=338[0]  GL=478[ 140,338] Prune=771 decisions=433 restart=3 est=0.0240385 DB Impl=7803[0]  
52.26/52.38	c DBreduced=0 GV=507[0]  GL=647[ 140,507] Prune=1163 decisions=656 restart=4 est=0.0240385 DB Impl=11774[0]  
52.26/52.38	c DBreduced=3 GV=760[0]  GL=852[ 140,712] Prune=1746 decisions=986 restart=5 est=0.0240385 DB Impl=16861[0]  
52.26/52.38	c DBreduced=4 GV=1141[0]  GL=880[ 140,740] Prune=2549 decisions=1408 restart=6 est=0.0240385 DB Impl=24373[0]  
52.26/52.38	c DBreduced=6 GV=1709[0]  GL=730[ 140,590] Prune=3724 decisions=2015 restart=7 est=0.0240385 DB Impl=35649[0]  
52.26/52.38	c DBreduced=7 GV=2563[0]  GL=1147[ 140,1007] Prune=5558 decisions=2995 restart=8 est=0.0240385 DB Impl=53223[0]  
52.26/52.38	c DBreduced=10 GV=3845[0]  GL=1082[ 140,942] Prune=8274 decisions=4429 restart=9 est=0.0240385 DB Impl=80649[0]  
52.26/52.38	c DBreduced=12 GV=5767[0]  GL=1840[ 140,1700] Prune=12276 decisions=6509 restart=10 est=0.0240385 DB Impl=122855[0]  
52.26/52.38	c DBreduced=15 GV=8650[0]  GL=2360[ 140,2220] Prune=18427 decisions=9777 restart=11 est=0.0240385 DB Impl=183081[0]  
52.26/52.38	c DBreduced=19 GV=12976[0]  GL=2478[ 140,2338] Prune=27572 decisions=14596 restart=12 est=0.0240387 DB Impl=277720[0]  
52.26/52.38	c DBreduced=23 GV=19462[0]  GL=2977[ 140,2837] Prune=41300 decisions=21838 restart=13 est=0.0240387 DB Impl=412045[0]  
52.26/52.38	c DBreduced=26 GV=29193[0]  GL=6390[ 140,6250] Prune=62389 decisions=33196 restart=14 est=0.0240443 DB Impl=594446[0]  
52.26/52.38	c DBreduced=30 GV=43790[0]  GL=9430[ 140,9290] Prune=92885 decisions=49095 restart=15 est=0.0240721 DB Impl=881661[0]  
52.26/52.38	c DBreduced=34 GV=65687[0]  GL=14076[ 140,13936] Prune=138524 decisions=72837 restart=16 est=0.0240497 DB Impl=1346238[0]  
52.26/52.38	c DBreduced=39 GV=98527[0]  GL=14134[ 140,13994] Prune=207984 decisions=109457 restart=17 est=0.0244026 DB Impl=1973565[0]  
52.26/52.38	c DBreduced=43 GV=147790[0]  GL=24443[ 140,24303] Prune=312995 decisions=165205 restart=18 est=0.0477074 DB Impl=2926541[0]  
52.26/52.38	c DBreduced=47 GV=221685[0]  GL=38040[ 140,37900] Prune=467461 decisions=245776 restart=19 est=0.0714095 DB Impl=4374992[0]  
52.26/52.38	c #Total time (in seconds): 52.322
52.26/52.38	c #Memory used (in MB): 12.4922
52.26/52.38	c 
52.26/52.38	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/node4/watcher-316435-1172668997 -o ROOT/results/node4/solver-316435-1172668997 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316435-1172668997/cmusat_base /tmp/evaluation/316435-1172668997/instance-316435-1172668997.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: 0.91 0.95 0.99 3/77 3957
/proc/meminfo: memFree=806504/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=2176 CPUtime=0
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 156 0 0 0 0 0 0 0 18 0 1 0 286854555 2228224 138 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560054 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 544 138 110 241 0 300 0

[startup+0.0362 s]
/proc/loadavg: 0.91 0.95 0.99 3/77 3957
/proc/meminfo: memFree=806504/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=2308 CPUtime=0.03
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 185 0 0 0 3 0 0 0 18 0 1 0 286854555 2363392 167 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 135080266 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 577 167 110 241 0 333 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2308

[startup+0.101203 s]
/proc/loadavg: 0.91 0.95 0.99 3/77 3957
/proc/meminfo: memFree=806504/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=2440 CPUtime=0.1
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 215 0 0 0 10 0 0 0 18 0 1 0 286854555 2498560 197 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 135080264 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 610 197 110 241 0 366 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2440

[startup+0.301223 s]
/proc/loadavg: 0.91 0.95 0.99 3/77 3957
/proc/meminfo: memFree=806504/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=2708 CPUtime=0.3
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 287 0 0 0 30 0 0 0 19 0 1 0 286854555 2772992 269 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 677 269 110 241 0 433 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2708

[startup+0.701262 s]
/proc/loadavg: 0.91 0.95 0.99 3/77 3957
/proc/meminfo: memFree=806504/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=3400 CPUtime=0.7
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 411 0 0 0 70 0 0 0 23 0 1 0 286854555 3481600 393 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559881 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 850 393 110 241 0 606 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 3400

[startup+1.50134 s]
/proc/loadavg: 0.91 0.95 0.99 2/78 3958
/proc/meminfo: memFree=805280/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=3572 CPUtime=1.5
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 482 0 0 0 150 0 0 0 25 0 1 0 286854555 3657728 464 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560152 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 893 464 110 241 0 649 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 3572

[startup+3.10149 s]
/proc/loadavg: 0.91 0.95 0.99 2/78 3958
/proc/meminfo: memFree=804064/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=4732 CPUtime=3.1
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 726 0 0 0 310 0 0 0 25 0 1 0 286854555 4845568 708 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 135080264 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 1183 708 110 241 0 939 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 4732

[startup+6.3018 s]
/proc/loadavg: 0.92 0.95 0.99 2/78 3958
/proc/meminfo: memFree=803232/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=6580 CPUtime=6.29
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 1274 0 0 0 629 0 0 0 25 0 1 0 286854555 6737920 1097 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560476 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 1645 1097 110 241 0 1401 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6580

[startup+12.7014 s]
/proc/loadavg: 0.93 0.95 0.99 2/78 3958
/proc/meminfo: memFree=801568/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=7244 CPUtime=12.68
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 1726 0 0 0 1268 0 0 0 25 0 1 0 286854555 7417856 1323 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560009 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 1811 1323 110 241 0 1567 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 7244

[startup+25.5016 s]
/proc/loadavg: 0.94 0.96 0.99 2/78 3958
/proc/meminfo: memFree=798176/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=11116 CPUtime=25.48
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 3091 0 0 0 2547 1 0 0 25 0 1 0 286854555 11382784 2129 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134551462 0 0 4096 35 0 0 0 17 0 0 0
/proc/3957/statm: 2779 2129 110 241 0 2535 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 11116

[startup+51.1011 s]
/proc/loadavg: 0.96 0.96 0.99 2/78 3958
/proc/meminfo: memFree=796384/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=12748 CPUtime=51.06
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 3876 0 0 0 5104 2 0 0 25 0 1 0 286854555 13053952 2629 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/3957/statm: 3187 2629 111 241 0 2943 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 12748

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

[startup+51.9012 s]
/proc/loadavg: 0.96 0.96 0.99 2/78 3958
/proc/meminfo: memFree=796128/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=12792 CPUtime=51.86
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 4015 0 0 0 5184 2 0 0 25 0 1 0 286854555 13099008 2653 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559932 0 0 4096 35 0 0 0 17 1 0 0
/proc/3957/statm: 3198 2653 111 241 0 2954 0
Current children cumulated CPU time (s) 51.86
Current children cumulated vsize (KiB) 12792

[startup+52.3012 s]
/proc/loadavg: 0.96 0.96 0.99 2/78 3958
/proc/meminfo: memFree=796128/2055920 swapFree=4192812/4192956
[pid=3957] ppid=3955 vsize=12792 CPUtime=52.26
/proc/3957/stat : 3957 (cmusat_base) R 3955 3957 3245 0 -1 4194304 4015 0 0 0 5224 2 0 0 25 0 1 0 286854555 13099008 2653 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560506 0 0 4096 35 0 0 0 17 1 0 0
/proc/3957/statm: 3198 2653 111 241 0 2954 0
Current children cumulated CPU time (s) 52.26
Current children cumulated vsize (KiB) 12792

Child status: 20
Real time (s): 52.3908
CPU time (s): 52.355
CPU user time (s): 52.326
CPU system time (s): 0.028995
CPU usage (%): 99.9317
Max. virtual memory (cumulated for all children) (KiB): 12792

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 52.326
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4024
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= 1297

runsolver used 0.048992 second user time and 0.146977 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Wed Feb 28 13:23:17 UTC 2007

IDJOB= 316435
IDBENCH= 20441
IDSOLVER= 120
FILE ID= node4/316435-1172668997

PBS_JOBID= 3980966

Free space on /tmp= 66536 MiB

SOLVER NAME= CMUSAT BASE 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s65-100.cnf
COMMAND LINE= /tmp/evaluation/316435-1172668997/cmusat_base /tmp/evaluation/316435-1172668997/instance-316435-1172668997.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-316435-1172668997 -o ROOT/results/node4/solver-316435-1172668997 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316435-1172668997/cmusat_base /tmp/evaluation/316435-1172668997/instance-316435-1172668997.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  c783ce32e47f2d2dd661851cca52c3a7

RANDOM SEED= 197547353

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:        806912 kB
Buffers:         39836 kB
Cached:        1087128 kB
SwapCached:          0 kB
Active:         309176 kB
Inactive:       877544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        806912 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2632 kB
Writeback:           0 kB
Mapped:          78704 kB
Slab:            47796 kB
Committed_AS:  1147624 kB
PageTables:       1768 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= 66536 MiB

End job on node4 on Wed Feb 28 13:24:10 UTC 2007