Trace number 311164

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 35.0227 35.0335

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S834531569-01-UNSAT.cnf
MD5SUM4899d6582d732ef8e47904f161487c51
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72943
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

34.92/35.03	c Number of variables:  1295
34.92/35.03	c Number of clauses:    4026
34.92/35.03	c DBreduced=0 GV=101[0]  GL=4127[ 4026,101] Prune=275 decisions=173 restart=0 est=2.16222 DB Impl=17546[0]  
34.92/35.03	c DBreduced=0 GV=151[0]  GL=4177[ 4026,151] Prune=408 decisions=256 restart=1 est=2.16234 DB Impl=25901[0]  
34.92/35.03	c DBreduced=0 GV=227[0]  GL=4253[ 4026,227] Prune=639 decisions=411 restart=2 est=2.16234 DB Impl=39183[0]  
34.92/35.03	c DBreduced=0 GV=338[0]  GL=4364[ 4026,338] Prune=919 decisions=580 restart=3 est=2.16234 DB Impl=60878[0]  
34.92/35.03	c DBreduced=0 GV=507[0]  GL=4533[ 4026,507] Prune=1315 decisions=807 restart=4 est=2.16234 DB Impl=93284[0]  
34.92/35.03	c DBreduced=0 GV=760[0]  GL=4786[ 4026,760] Prune=1949 decisions=1188 restart=5 est=2.16258 DB Impl=137814[0]  
34.92/35.03	c DBreduced=0 GV=1141[0]  GL=5167[ 4026,1141] Prune=2802 decisions=1660 restart=6 est=2.16353 DB Impl=210772[0]  
34.92/35.03	c DBreduced=0 GV=1710[0]  GL=5736[ 4026,1710] Prune=4083 decisions=2372 restart=7 est=2.16258 DB Impl=313513[0]  
34.92/35.03	c DBreduced=2 GV=2564[0]  GL=6390[ 4026,2364] Prune=6025 decisions=3460 restart=8 est=2.16622 DB Impl=467479[0]  
34.92/35.03	c DBreduced=3 GV=3845[0]  GL=6530[ 4026,2504] Prune=8962 decisions=5116 restart=9 est=2.163 DB Impl=694706[0]  
34.92/35.03	c DBreduced=5 GV=5767[0]  GL=6263[ 4026,2237] Prune=13389 decisions=7621 restart=10 est=2.16347 DB Impl=1053446[0]  
34.92/35.03	c DBreduced=7 GV=8651[0]  GL=6539[ 4026,2513] Prune=19958 decisions=11306 restart=11 est=2.16467 DB Impl=1574864[0]  
34.92/35.03	c DBreduced=9 GV=12975[0]  GL=7789[ 4026,3763] Prune=29698 decisions=16722 restart=12 est=2.16252 DB Impl=2387972[0]  
34.92/35.03	c DBreduced=12 GV=19463[0]  GL=8542[ 4026,4516] Prune=44206 decisions=24742 restart=13 est=2.16222 DB Impl=3604226[0]  
34.92/35.03	c DBreduced=15 GV=29193[0]  GL=10555[ 4026,6529] Prune=66106 decisions=36912 restart=14 est=2.23992 DB Impl=5408107[0]  
34.92/35.03	c DBreduced=19 GV=43790[0]  GL=11351[ 4026,7325] Prune=98855 decisions=55064 restart=15 est=2.23962 DB Impl=8068823[0]  
34.92/35.03	c DBreduced=22 GV=65685[0]  GL=18892[ 4026,14866] Prune=147284 decisions=81598 restart=16 est=2.23974 DB Impl=12141153[0]  
34.92/35.03	c DBreduced=26 GV=98527[0]  GL=25185[ 4026,21159] Prune=219451 decisions=120923 restart=17 est=2.31857 DB Impl=18292096[0]  
34.92/35.03	c #Total time (in seconds): 35.0027
34.92/35.03	c #Memory used (in MB): 13.0352
34.92/35.03	c 
34.92/35.03	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-311164-1172564685 -o ROOT/results/node24/solver-311164-1172564685 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311164-1172564685/cmusat_base /tmp/evaluation/311164-1172564685/instance-311164-1172564685.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.96 0.95 0.98 3/77 26789
/proc/meminfo: memFree=1811080/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=2320 CPUtime=0
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 188 0 0 0 0 0 0 0 18 0 1 0 276422779 2375680 170 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134564250 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 580 170 90 241 0 336 0

[startup+0.10771 s]
/proc/loadavg: 0.96 0.95 0.98 3/77 26789
/proc/meminfo: memFree=1811080/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=2868 CPUtime=0.1
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 319 0 0 0 10 0 0 0 18 0 1 0 276422779 2936832 301 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 717 301 109 241 0 473 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2868

[startup+0.515754 s]
/proc/loadavg: 0.96 0.95 0.98 3/77 26789
/proc/meminfo: memFree=1811080/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=3328 CPUtime=0.51
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 432 0 0 0 51 0 0 0 21 0 1 0 276422779 3407872 414 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559860 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 832 414 109 241 0 588 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3328

[startup+1.34285 s]
/proc/loadavg: 0.96 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1809536/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=3492 CPUtime=1.33
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 509 0 0 0 133 0 0 0 25 0 1 0 276422779 3575808 491 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 873 491 109 241 0 629 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3492

[startup+2.97902 s]
/proc/loadavg: 0.96 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1808704/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=4384 CPUtime=2.97
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 701 0 0 0 297 0 0 0 25 0 1 0 276422779 4489216 682 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560029 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 1096 682 109 241 0 852 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 4384

[startup+6.25538 s]
/proc/loadavg: 0.96 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1807936/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=5084 CPUtime=6.24
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 890 0 0 0 624 0 0 0 25 0 1 0 276422779 5206016 871 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134562588 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 1271 871 109 241 0 1027 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 5084

[startup+12.7121 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1805584/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=7484 CPUtime=12.7
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 1470 0 0 0 1270 0 0 0 25 0 1 0 276422779 7663616 1368 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559932 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 1871 1368 109 241 0 1627 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 7484

[startup+25.5125 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1804496/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=8880 CPUtime=25.49
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 2018 0 0 0 2549 0 0 0 25 0 1 0 276422779 9093120 1783 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560546 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 2220 1783 109 241 0 1976 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 8880

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

[startup+26.2315 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1803984/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=8896 CPUtime=26.21
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 2092 0 0 0 2621 0 0 0 25 0 1 0 276422779 9109504 1805 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559834 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 2224 1805 109 241 0 1980 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 8896

[startup+29.5129 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1803728/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=9292 CPUtime=29.5
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 2191 0 0 0 2949 1 0 0 25 0 1 0 276422779 9515008 1904 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560054 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 2323 1904 109 241 0 2079 0
Current children cumulated CPU time (s) 29.5
Current children cumulated vsize (KiB) 9292

[startup+32.7893 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1803344/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=9444 CPUtime=32.77
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 2304 0 0 0 3276 1 0 0 25 0 1 0 276422779 9670656 1961 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560054 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 2361 1961 109 241 0 2117 0
Current children cumulated CPU time (s) 32.77
Current children cumulated vsize (KiB) 9444

[startup+33.6053 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1803344/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=9444 CPUtime=33.59
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 2305 0 0 0 3358 1 0 0 25 0 1 0 276422779 9670656 1962 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560146 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 2361 1962 109 241 0 2117 0
Current children cumulated CPU time (s) 33.59
Current children cumulated vsize (KiB) 9444

[startup+34.4254 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1803344/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=9576 CPUtime=34.41
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 2350 0 0 0 3440 1 0 0 25 0 1 0 276422779 9805824 2007 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560035 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 2394 2007 109 241 0 2150 0
Current children cumulated CPU time (s) 34.41
Current children cumulated vsize (KiB) 9576

[startup+34.8335 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1803344/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=13348 CPUtime=34.81
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 3263 0 0 0 3480 1 0 0 25 0 1 0 276422779 13668352 2699 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560009 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 3337 2699 109 241 0 3093 0
Current children cumulated CPU time (s) 34.81
Current children cumulated vsize (KiB) 13348

[startup+34.9355 s]
/proc/loadavg: 0.97 0.95 0.98 2/78 26790
/proc/meminfo: memFree=1800208/2055920 swapFree=4139416/4192956
[pid=26789] ppid=26787 vsize=13348 CPUtime=34.92
/proc/26789/stat : 26789 (cmusat_base) R 26787 26789 25155 0 -1 4194304 3263 0 0 0 3491 1 0 0 25 0 1 0 276422779 13668352 2699 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560493 0 0 4096 35 0 0 0 17 1 0 0
/proc/26789/statm: 3337 2699 109 241 0 3093 0
Current children cumulated CPU time (s) 34.92
Current children cumulated vsize (KiB) 13348

Child status: 20
Real time (s): 35.0335
CPU time (s): 35.0227
CPU user time (s): 35.0027
CPU system time (s): 0.019996
CPU usage (%): 99.969
Max. virtual memory (cumulated for all children) (KiB): 13348

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 35.0027
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= 3276
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= 7
involuntary context switches= 84

runsolver used 0.033994 second user time and 0.082987 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Tue Feb 27 08:24:45 UTC 2007

IDJOB= 311164
IDBENCH= 20306
IDSOLVER= 120
FILE ID= node24/311164-1172564685

PBS_JOBID= 3971873

Free space on /tmp= 66559 MiB

SOLVER NAME= CMUSAT BASE 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S834531569-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/311164-1172564685/cmusat_base /tmp/evaluation/311164-1172564685/instance-311164-1172564685.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-311164-1172564685 -o ROOT/results/node24/solver-311164-1172564685 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311164-1172564685/cmusat_base /tmp/evaluation/311164-1172564685/instance-311164-1172564685.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  4899d6582d732ef8e47904f161487c51

RANDOM SEED= 385696249

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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		: 3000.232
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		: 3000.232
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:       1811488 kB
Buffers:         29876 kB
Cached:         160576 kB
SwapCached:       8788 kB
Active:         116164 kB
Inactive:        89212 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1811488 kB
SwapTotal:     4192956 kB
SwapFree:      4139416 kB
Dirty:            2500 kB
Writeback:           0 kB
Mapped:          15840 kB
Slab:            24600 kB
Committed_AS:   788280 kB
PageTables:       1732 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= 66559 MiB

End job on node24 on Tue Feb 27 08:25:20 UTC 2007