Trace number 310631

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 33.2769 33.288

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
MD5SUMda575672f9caad385bd5edff99ee5f4d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.42378
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

33.17/33.28	c Number of variables:  630
33.17/33.28	c Number of clauses:    2280
33.17/33.28	c DBreduced=0 GV=102[0]  GL=2382[ 2280,102] Prune=262 decisions=159 restart=0 est=0.952886 DB Impl=11104[0]  
33.17/33.28	c DBreduced=0 GV=152[0]  GL=2432[ 2280,152] Prune=388 decisions=235 restart=1 est=0.953642 DB Impl=16830[0]  
33.17/33.28	c DBreduced=0 GV=226[0]  GL=2506[ 2280,226] Prune=584 decisions=357 restart=2 est=0.952886 DB Impl=24258[0]  
33.17/33.28	c DBreduced=0 GV=338[0]  GL=2618[ 2280,338] Prune=853 decisions=514 restart=3 est=0.952886 DB Impl=35830[0]  
33.17/33.28	c DBreduced=0 GV=509[0]  GL=2789[ 2280,509] Prune=1270 decisions=760 restart=4 est=0.953137 DB Impl=54059[0]  
33.17/33.28	c DBreduced=0 GV=760[0]  GL=3040[ 2280,760] Prune=1871 decisions=1110 restart=5 est=0.953893 DB Impl=79671[0]  
33.17/33.28	c DBreduced=0 GV=1140[0]  GL=3420[ 2280,1140] Prune=2782 decisions=1641 restart=6 est=0.953893 DB Impl=119164[0]  
33.17/33.28	c DBreduced=2 GV=1709[0]  GL=3845[ 2280,1565] Prune=4095 decisions=2385 restart=7 est=0.952633 DB Impl=176046[0]  
33.17/33.28	c DBreduced=4 GV=2563[0]  GL=3906[ 2280,1626] Prune=5984 decisions=3420 restart=8 est=0.952885 DB Impl=265469[0]  
33.17/33.28	c DBreduced=5 GV=3846[0]  GL=4261[ 2280,1981] Prune=8962 decisions=5115 restart=9 est=0.953645 DB Impl=396869[0]  
33.17/33.28	c DBreduced=7 GV=5767[0]  GL=4374[ 2280,2094] Prune=13206 decisions=7438 restart=10 est=0.952634 DB Impl=595904[0]  
33.17/33.28	c DBreduced=9 GV=8651[0]  GL=5201[ 2280,2921] Prune=19784 decisions=11132 restart=11 est=0.952633 DB Impl=890880[0]  
33.17/33.28	c DBreduced=12 GV=12976[0]  GL=5552[ 2280,3272] Prune=29420 decisions=16443 restart=12 est=0.952633 DB Impl=1320948[0]  
33.17/33.28	c DBreduced=15 GV=19463[0]  GL=6815[ 2280,4535] Prune=43812 decisions=24348 restart=13 est=0.955407 DB Impl=1995964[0]  
33.17/33.28	c DBreduced=19 GV=29193[0]  GL=6717[ 2280,4437] Prune=65451 decisions=36257 restart=14 est=0.952635 DB Impl=2996710[0]  
33.17/33.28	c DBreduced=22 GV=43790[0]  GL=11159[ 2280,8879] Prune=97668 decisions=53877 restart=15 est=0.952636 DB Impl=4537955[0]  
33.17/33.28	c DBreduced=26 GV=65685[0]  GL=14553[ 2280,12273] Prune=145892 decisions=80206 restart=16 est=0.957675 DB Impl=6814120[0]  
33.17/33.28	c DBreduced=30 GV=98527[0]  GL=20492[ 2280,18212] Prune=218538 decisions=120010 restart=17 est=1.11439 DB Impl=10150348[0]  
33.17/33.28	c DBreduced=34 GV=147790[0]  GL=29438[ 2280,27158] Prune=326837 decisions=179046 restart=18 est=1.27161 DB Impl=15296998[0]  
33.17/33.28	c #Total time (in seconds): 33.2649
33.17/33.28	c #Memory used (in MB): 9.10547
33.17/33.28	c 
33.17/33.28	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/node75/watcher-310631-1172560473 -o ROOT/results/node75/solver-310631-1172560473 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310631-1172560473/cmusat_base /tmp/evaluation/310631-1172560473/instance-310631-1172560473.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: 1.12 1.05 1.01 3/64 16978
/proc/meminfo: memFree=1816464/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=2308 CPUtime=0
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 181 0 0 0 0 0 0 0 20 0 1 0 276013154 2363392 163 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 135064935 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 577 163 92 241 0 333 0

[startup+0.106492 s]
/proc/loadavg: 1.12 1.05 1.01 3/64 16978
/proc/meminfo: memFree=1816464/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=2736 CPUtime=0.1
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 293 0 0 0 10 0 0 0 21 0 1 0 276013154 2801664 275 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134551769 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 684 275 111 241 0 440 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2736

[startup+0.51454 s]
/proc/loadavg: 1.12 1.05 1.01 3/64 16978
/proc/meminfo: memFree=1816464/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=3192 CPUtime=0.51
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 409 0 0 0 51 0 0 0 25 0 1 0 276013154 3268608 391 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 135062993 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 798 391 111 241 0 554 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3192

[startup+1.33464 s]
/proc/loadavg: 1.12 1.05 1.01 2/65 16979
/proc/meminfo: memFree=1815112/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=3448 CPUtime=1.33
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 467 0 0 0 133 0 0 0 25 0 1 0 276013154 3530752 449 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559860 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 862 449 111 241 0 618 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3448

[startup+2.97083 s]
/proc/loadavg: 1.12 1.05 1.01 2/65 16979
/proc/meminfo: memFree=1814600/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=4864 CPUtime=2.96
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 778 0 0 0 296 0 0 0 25 0 1 0 276013154 4980736 760 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559905 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 1216 760 111 241 0 972 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4864

[startup+6.25222 s]
/proc/loadavg: 1.11 1.05 1.01 2/65 16979
/proc/meminfo: memFree=1813256/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=5484 CPUtime=6.24
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 948 0 0 0 624 0 0 0 25 0 1 0 276013154 5615616 930 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559932 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 1371 930 111 241 0 1127 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 5484

[startup+12.708 s]
/proc/loadavg: 1.09 1.04 1.01 2/65 16979
/proc/meminfo: memFree=1811152/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=7620 CPUtime=12.69
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 1601 0 0 0 1269 0 0 0 25 0 1 0 276013154 7802880 1386 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559860 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 1905 1386 111 241 0 1661 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7620

[startup+25.6095 s]
/proc/loadavg: 1.08 1.04 1.01 2/65 16979
/proc/meminfo: memFree=1809744/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=8904 CPUtime=25.59
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 2229 0 0 0 2559 0 0 0 25 0 1 0 276013154 9117696 1772 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 2226 1772 111 241 0 1982 0
Current children cumulated CPU time (s) 25.59
Current children cumulated vsize (KiB) 8904

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

[startup+26.2256 s]
/proc/loadavg: 1.08 1.04 1.01 2/65 16979
/proc/meminfo: memFree=1809552/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=8904 CPUtime=26.2
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 2231 0 0 0 2620 0 0 0 25 0 1 0 276013154 9117696 1774 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 2226 1774 111 241 0 1982 0
Current children cumulated CPU time (s) 26.2
Current children cumulated vsize (KiB) 8904

[startup+29.505 s]
/proc/loadavg: 1.07 1.04 1.01 2/65 16979
/proc/meminfo: memFree=1809232/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=9168 CPUtime=29.48
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 2337 0 0 0 2948 0 0 0 25 0 1 0 276013154 9388032 1880 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559954 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 2292 1880 111 241 0 2048 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 9168

[startup+31.1412 s]
/proc/loadavg: 1.07 1.04 1.01 2/65 16979
/proc/meminfo: memFree=1809040/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=9324 CPUtime=31.13
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 2436 0 0 0 3112 1 0 0 25 0 1 0 276013154 9547776 1917 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 2331 1917 111 241 0 2087 0
Current children cumulated CPU time (s) 31.13
Current children cumulated vsize (KiB) 9324

[startup+31.9613 s]
/proc/loadavg: 1.07 1.04 1.01 2/65 16979
/proc/meminfo: memFree=1808976/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=9324 CPUtime=31.95
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 2437 0 0 0 3194 1 0 0 25 0 1 0 276013154 9547776 1918 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560506 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 2331 1918 111 241 0 2087 0
Current children cumulated CPU time (s) 31.95
Current children cumulated vsize (KiB) 9324

[startup+32.7814 s]
/proc/loadavg: 1.06 1.04 1.01 2/65 16979
/proc/meminfo: memFree=1808976/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=9324 CPUtime=32.77
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 2439 0 0 0 3276 1 0 0 25 0 1 0 276013154 9547776 1920 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560538 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 2331 1920 111 241 0 2087 0
Current children cumulated CPU time (s) 32.77
Current children cumulated vsize (KiB) 9324

[startup+33.1894 s]
/proc/loadavg: 1.06 1.04 1.01 2/65 16979
/proc/meminfo: memFree=1808976/2055920 swapFree=4183048/4192956
[pid=16978] ppid=16976 vsize=9324 CPUtime=33.17
/proc/16978/stat : 16978 (cmusat_base) R 16976 16978 16454 0 -1 4194304 2440 0 0 0 3316 1 0 0 25 0 1 0 276013154 9547776 1921 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 135080266 0 0 4096 35 0 0 0 17 1 0 0
/proc/16978/statm: 2331 1921 111 241 0 2087 0
Current children cumulated CPU time (s) 33.17
Current children cumulated vsize (KiB) 9324

Child status: 20
Real time (s): 33.288
CPU time (s): 33.2769
CPU user time (s): 33.2649
CPU system time (s): 0.011998
CPU usage (%): 99.9668
Max. virtual memory (cumulated for all children) (KiB): 9324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.2649
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2450
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= 34

runsolver used 0.022996 second user time and 0.075988 second system time

The end

Launcher Data (download as text)

Begin job on node75 on Tue Feb 27 07:14:33 UTC 2007

IDJOB= 310631
IDBENCH= 20292
IDSOLVER= 120
FILE ID= node75/310631-1172560473

PBS_JOBID= 3971880

Free space on /tmp= 66558 MiB

SOLVER NAME= CMUSAT BASE 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310631-1172560473/cmusat_base /tmp/evaluation/310631-1172560473/instance-310631-1172560473.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-310631-1172560473 -o ROOT/results/node75/solver-310631-1172560473 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310631-1172560473/cmusat_base /tmp/evaluation/310631-1172560473/instance-310631-1172560473.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  da575672f9caad385bd5edff99ee5f4d

RANDOM SEED= 354288607

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node75.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		: 3000.218
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		: 3000.218
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:       1816872 kB
Buffers:         32504 kB
Cached:         159016 kB
SwapCached:       4184 kB
Active:         109608 kB
Inactive:        91772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1816872 kB
SwapTotal:     4192956 kB
SwapFree:      4183048 kB
Dirty:            2600 kB
Writeback:           0 kB
Mapped:          15396 kB
Slab:            23564 kB
Committed_AS:   747620 kB
PageTables:       1432 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= 66558 MiB

End job on node75 on Tue Feb 27 07:15:07 UTC 2007