Trace number 311165

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 2007-02-08UNSAT 37.9662 37.9796

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)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  1295                                                 |
0.00/0.00	c |  Number of clauses:    4026                                                 |
37.88/37.97	c |  Parsing time:         0.01         sec                                       |
37.88/37.97	c #varS 1295 #clauseS 3735
37.88/37.97	c REMAP internally 1
37.88/37.97	c After remapping new number of variables: 1106
37.88/37.97	c DBreduced=0 GV=103[0]  GL=3838[ 3735,103] Prune=283 decisions=180 restart=0 est=8.18244e-05 DB Impl=16117[0]  
37.88/37.97	c DBreduced=0 GV=152[0]  GL=3887[ 3735,152] Prune=401 decisions=249 restart=1 est=0.000982927 DB Impl=23813[0]  
37.88/37.97	c DBreduced=0 GV=227[0]  GL=3962[ 3735,227] Prune=584 decisions=357 restart=2 est=0.00016387 DB Impl=34714[0]  
37.88/37.97	c DBreduced=0 GV=338[0]  GL=4073[ 3735,338] Prune=881 decisions=543 restart=3 est=8.18244e-05 DB Impl=52061[0]  
37.88/37.97	c DBreduced=0 GV=507[0]  GL=4242[ 3735,507] Prune=1315 decisions=808 restart=4 est=8.2564e-05 DB Impl=78509[0]  
37.88/37.97	c DBreduced=0 GV=760[0]  GL=4495[ 3735,760] Prune=1936 decisions=1176 restart=5 est=0.000817947 DB Impl=118503[0]  
37.88/37.97	c DBreduced=0 GV=1140[0]  GL=4875[ 3735,1140] Prune=2787 decisions=1647 restart=6 est=0.0017243 DB Impl=182467[0]  
37.88/37.97	c DBreduced=0 GV=1709[0]  GL=5444[ 3735,1709] Prune=4112 decisions=2403 restart=7 est=0.000490872 DB Impl=281744[0]  
37.88/37.97	c DBreduced=3 GV=2564[0]  GL=5086[ 3735,1351] Prune=6100 decisions=3536 restart=8 est=0.000490798 DB Impl=424078[0]  
37.88/37.97	c DBreduced=4 GV=3845[0]  GL=5346[ 3735,1611] Prune=8894 decisions=5049 restart=9 est=0.00335221 DB Impl=637633[0]  
37.88/37.97	c DBreduced=5 GV=5767[0]  GL=6239[ 3735,2504] Prune=13170 decisions=7403 restart=10 est=0.000899477 DB Impl=958664[0]  
37.88/37.97	c DBreduced=7 GV=8650[0]  GL=6650[ 3735,2915] Prune=19724 decisions=11074 restart=11 est=0.000245695 DB Impl=1449450[0]  
37.88/37.97	c DBreduced=10 GV=12975[0]  GL=6504[ 3735,2769] Prune=29465 decisions=16490 restart=12 est=0.000408826 DB Impl=2181978[0]  
37.88/37.97	c DBreduced=12 GV=19463[0]  GL=9226[ 3735,5491] Prune=44116 decisions=24653 restart=13 est=0.00106342 DB Impl=3305001[0]  
37.88/37.97	c DBreduced=16 GV=29194[0]  GL=8902[ 3735,5167] Prune=65843 decisions=36649 restart=14 est=0.000899772 DB Impl=4943257[0]  
37.88/37.97	c DBreduced=19 GV=43791[0]  GL=13107[ 3735,9372] Prune=98468 decisions=54677 restart=15 est=0.00139072 DB Impl=7364691[0]  
37.88/37.97	c DBreduced=23 GV=65686[0]  GL=15870[ 3735,12135] Prune=146876 decisions=81190 restart=16 est=0.0905796 DB Impl=11142907[0]  
37.88/37.97	c DBreduced=27 GV=98527[0]  GL=21352[ 3735,17617] Prune=219696 decisions=121169 restart=17 est=0.272311 DB Impl=16703512[0]  
37.88/37.97	c #Total time (in seconds): 37.9422
37.88/37.97	c #Memory used (in MB): 12.9219
37.88/37.97	c 
37.88/37.97	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/node10/watcher-311165-1172564692 -o ROOT/results/node10/solver-311165-1172564692 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311165-1172564692/cmusat /tmp/evaluation/311165-1172564692/instance-311165-1172564692.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: 0.98 0.97 0.99 3/77 27585
/proc/meminfo: memFree=1589296/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=2452 CPUtime=0
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 228 0 0 0 0 0 0 0 18 0 1 0 276424253 2510848 211 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134514009 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 613 211 96 243 0 367 0

[startup+0.107389 s]
/proc/loadavg: 0.98 0.97 0.99 3/77 27585
/proc/meminfo: memFree=1589296/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=2800 CPUtime=0.1
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 337 0 0 0 10 0 0 0 18 0 1 0 276424253 2867200 320 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589468 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 700 320 118 243 0 454 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2800

[startup+0.515444 s]
/proc/loadavg: 0.98 0.97 0.99 3/77 27585
/proc/meminfo: memFree=1589296/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=3260 CPUtime=0.51
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 430 0 0 0 51 0 0 0 21 0 1 0 276424253 3338240 413 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135107896 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 815 413 118 243 0 569 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3260

[startup+1.33555 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1587688/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=4380 CPUtime=1.33
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 657 0 0 0 133 0 0 0 25 0 1 0 276424253 4485120 640 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589601 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 1095 640 118 243 0 849 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 4380

[startup+2.97178 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1586984/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=4380 CPUtime=2.96
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 694 0 0 0 296 0 0 0 25 0 1 0 276424253 4485120 677 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589615 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 1095 677 118 243 0 849 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4380

[startup+6.25322 s]
/proc/loadavg: 0.99 0.97 0.99 3/78 27586
/proc/meminfo: memFree=1586088/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=5288 CPUtime=6.24
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 931 0 0 0 624 0 0 0 25 0 1 0 276424253 5414912 914 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134581876 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 1322 914 118 243 0 1076 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 5288

[startup+12.7041 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1583976/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=7312 CPUtime=12.69
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 1461 0 0 0 1269 0 0 0 25 0 1 0 276424253 7487488 1367 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589512 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 1828 1367 118 243 0 1582 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7312

[startup+25.5108 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1582440/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=8824 CPUtime=25.49
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 2070 0 0 0 2548 1 0 0 25 0 1 0 276424253 9035776 1802 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589736 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 2206 1802 118 243 0 1960 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 8824

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

[startup+26.2289 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1581928/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=9220 CPUtime=26.21
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 2170 0 0 0 2620 1 0 0 25 0 1 0 276424253 9441280 1902 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134590259 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 2305 1902 118 243 0 2059 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 9220

[startup+32.7868 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1578664/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=13080 CPUtime=32.76
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 3258 0 0 0 3275 1 0 0 25 0 1 0 276424253 13393920 2674 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589736 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 3270 2674 118 243 0 3024 0
Current children cumulated CPU time (s) 32.76
Current children cumulated vsize (KiB) 13080

[startup+36.0593 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1578536/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=13212 CPUtime=36.04
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 3278 0 0 0 3603 1 0 0 25 0 1 0 276424253 13529088 2694 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589601 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 3303 2694 118 243 0 3057 0
Current children cumulated CPU time (s) 36.04
Current children cumulated vsize (KiB) 13212

[startup+36.8794 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1578536/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=13232 CPUtime=36.86
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 3350 0 0 0 3684 2 0 0 25 0 1 0 276424253 13549568 2704 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589690 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 3308 2704 118 243 0 3062 0
Current children cumulated CPU time (s) 36.86
Current children cumulated vsize (KiB) 13232

[startup+37.6995 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1578536/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=13232 CPUtime=37.68
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 3350 0 0 0 3766 2 0 0 25 0 1 0 276424253 13549568 2704 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589923 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 3308 2704 118 243 0 3062 0
Current children cumulated CPU time (s) 37.68
Current children cumulated vsize (KiB) 13232

[startup+37.9035 s]
/proc/loadavg: 0.99 0.97 0.99 2/78 27586
/proc/meminfo: memFree=1578536/2055920 swapFree=4192812/4192956
[pid=27585] ppid=27583 vsize=13232 CPUtime=37.88
/proc/27585/stat : 27585 (cmusat) R 27583 27585 25902 0 -1 4194304 3350 0 0 0 3786 2 0 0 25 0 1 0 276424253 13549568 2704 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134590173 0 0 4096 35 0 0 0 17 1 0 0
/proc/27585/statm: 3308 2704 118 243 0 3062 0
Current children cumulated CPU time (s) 37.88
Current children cumulated vsize (KiB) 13232

Child status: 20
Real time (s): 37.9796
CPU time (s): 37.9662
CPU user time (s): 37.9422
CPU system time (s): 0.023996
CPU usage (%): 99.9648
Max. virtual memory (cumulated for all children) (KiB): 13232

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.9422
system time used= 0.023996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3362
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= 184

runsolver used 0.041993 second user time and 0.087986 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue Feb 27 08:24:52 UTC 2007

IDJOB= 311165
IDBENCH= 20306
IDSOLVER= 121
FILE ID= node10/311165-1172564692

PBS_JOBID= 3971657

Free space on /tmp= 66559 MiB

SOLVER NAME= CMUSAT 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/311165-1172564692/cmusat /tmp/evaluation/311165-1172564692/instance-311165-1172564692.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-311165-1172564692 -o ROOT/results/node10/solver-311165-1172564692 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311165-1172564692/cmusat /tmp/evaluation/311165-1172564692/instance-311165-1172564692.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  4899d6582d732ef8e47904f161487c51

RANDOM SEED= 490926215

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.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:       1589640 kB
Buffers:         50380 kB
Cached:         301588 kB
SwapCached:          0 kB
Active:         251828 kB
Inactive:       144876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1589640 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2516 kB
Writeback:           0 kB
Mapped:          63620 kB
Slab:            55012 kB
Committed_AS:  1374016 kB
PageTables:       1832 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 node10 on Tue Feb 27 08:25:31 UTC 2007