Trace number 310837

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 1.43478 1.43618

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1240130681-11-UNSAT.cnf
MD5SUM76f071535d514b4b4cd5d986eb064c1d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.396938
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
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                                                 |
1.33/1.43	c |  Parsing time:         0.01         sec                                       |
1.33/1.43	c #varS 1295 #clauseS 3674
1.33/1.43	c REMAP internally 1
1.33/1.43	c After remapping new number of variables: 1062
1.33/1.43	c DBreduced=0 GV=102[0]  GL=3775[ 3674,101] Prune=293 decisions=191 restart=0 est=0.378155 DB Impl=15348[0]  
1.33/1.43	c DBreduced=0 GV=151[0]  GL=3824[ 3674,150] Prune=422 decisions=271 restart=1 est=0.376741 DB Impl=23515[0]  
1.33/1.43	c DBreduced=0 GV=229[0]  GL=3902[ 3674,228] Prune=625 decisions=396 restart=2 est=0.377269 DB Impl=36809[0]  
1.33/1.43	c DBreduced=0 GV=338[0]  GL=4011[ 3674,337] Prune=881 decisions=543 restart=3 est=0.378687 DB Impl=54507[0]  
1.33/1.43	c DBreduced=0 GV=508[0]  GL=4181[ 3674,507] Prune=1300 decisions=792 restart=4 est=0.376737 DB Impl=81797[0]  
1.33/1.43	c DBreduced=0 GV=760[0]  GL=4433[ 3674,759] Prune=1915 decisions=1155 restart=5 est=0.376737 DB Impl=125416[0]  
1.33/1.43	c DBreduced=0 GV=1140[0]  GL=4813[ 3674,1139] Prune=2808 decisions=1668 restart=6 est=0.379663 DB Impl=187978[0]  
1.33/1.43	c DBreduced=0 GV=1709[0]  GL=5381[ 3674,1707] Prune=4125 decisions=2416 restart=7 est=0.566745 DB Impl=282503[0]  
1.33/1.43	c DBreduced=2 GV=2563[0]  GL=5060[ 3674,1386] Prune=6074 decisions=3511 restart=8 est=0.848078 DB Impl=421614[0]  
1.33/1.43	c DBreduced=3 GV=3846[0]  GL=5526[ 3674,1852] Prune=8982 decisions=5136 restart=9 est=1.03631 DB Impl=635261[0]  
1.33/1.43	c DBreduced=5 GV=5767[0]  GL=5502[ 3674,1828] Prune=13345 decisions=7578 restart=10 est=2.3545 DB Impl=941688[0]  
1.33/1.43	c DBreduced=7 GV=8650[0]  GL=6092[ 3674,2418] Prune=19820 decisions=11170 restart=11 est=2.82521 DB Impl=1412114[0]  
1.33/1.43	c #Total time (in seconds): 1.42978
1.33/1.43	c #Memory used (in MB): 3.99609
1.33/1.43	c 
1.33/1.43	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/node11/watcher-310837-1172562153 -o ROOT/results/node11/solver-310837-1172562153 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310837-1172562153/cmusat /tmp/evaluation/310837-1172562153/instance-310837-1172562153.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: 0.93 0.98 0.99 3/77 14837
/proc/meminfo: memFree=1569336/2055920 swapFree=4192812/4192956
[pid=14837] ppid=14835 vsize=2452 CPUtime=0
/proc/14837/stat : 14837 (cmusat) R 14835 14837 13808 0 -1 4194304 230 0 0 0 0 0 0 0 18 0 1 0 276169859 2510848 213 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/14837/statm: 613 213 96 243 0 367 0

[startup+0.107934 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 14837
/proc/meminfo: memFree=1569336/2055920 swapFree=4192812/4192956
[pid=14837] ppid=14835 vsize=2812 CPUtime=0.1
/proc/14837/stat : 14837 (cmusat) R 14835 14837 13808 0 -1 4194304 328 0 0 0 10 0 0 0 18 0 1 0 276169859 2879488 311 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/14837/statm: 703 311 118 243 0 457 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2812

[startup+0.519985 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 14837
/proc/meminfo: memFree=1569336/2055920 swapFree=4192812/4192956
[pid=14837] ppid=14835 vsize=3224 CPUtime=0.51
/proc/14837/stat : 14837 (cmusat) R 14835 14837 13808 0 -1 4194304 421 0 0 0 51 0 0 0 22 0 1 0 276169859 3301376 404 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589536 0 0 4096 35 0 0 0 17 1 0 0
/proc/14837/statm: 806 404 118 243 0 560 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3224

[startup+1.34208 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14838
/proc/meminfo: memFree=1567920/2055920 swapFree=4192812/4192956
[pid=14837] ppid=14835 vsize=4092 CPUtime=1.33
/proc/14837/stat : 14837 (cmusat) R 14835 14837 13808 0 -1 4194304 613 0 0 0 133 0 0 0 25 0 1 0 276169859 4190208 596 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589593 0 0 4096 35 0 0 0 17 1 0 0
/proc/14837/statm: 1023 596 118 243 0 777 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 4092

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

[startup+1.34208 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14838
/proc/meminfo: memFree=1567920/2055920 swapFree=4192812/4192956
[pid=14837] ppid=14835 vsize=4092 CPUtime=1.33
/proc/14837/stat : 14837 (cmusat) R 14835 14837 13808 0 -1 4194304 613 0 0 0 133 0 0 0 25 0 1 0 276169859 4190208 596 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589593 0 0 4096 35 0 0 0 17 1 0 0
/proc/14837/statm: 1023 596 118 243 0 777 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 4092

Child status: 20
Real time (s): 1.43618
CPU time (s): 1.43478
CPU user time (s): 1.42978
CPU system time (s): 0.004999
CPU usage (%): 99.9028
Max. virtual memory (cumulated for all children) (KiB): 4092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.42978
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 625
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= 30

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Tue Feb 27 07:42:33 UTC 2007

IDJOB= 310837
IDBENCH= 20297
IDSOLVER= 121
FILE ID= node11/310837-1172562153

PBS_JOBID= 3971665

Free space on /tmp= 66557 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1240130681-11-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310837-1172562153/cmusat /tmp/evaluation/310837-1172562153/instance-310837-1172562153.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-310837-1172562153 -o ROOT/results/node11/solver-310837-1172562153 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310837-1172562153/cmusat /tmp/evaluation/310837-1172562153/instance-310837-1172562153.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  76f071535d514b4b4cd5d986eb064c1d

RANDOM SEED= 461087590

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.243
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		: 3000.243
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:       1569808 kB
Buffers:         52824 kB
Cached:         319748 kB
SwapCached:          0 kB
Active:         251268 kB
Inactive:       164668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1569808 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2700 kB
Writeback:           0 kB
Mapped:          62232 kB
Slab:            55728 kB
Committed_AS:   808496 kB
PageTables:       1756 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= 66557 MiB

End job on node11 on Tue Feb 27 07:42:35 UTC 2007