Trace number 312230

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 7.65384 7.65646

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
MD5SUMa72030f9b5b8bc8b27629e6299239dd6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.27281
Satisfiable
(Un)Satisfiability was proved
Number of variables1665
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

7.57/7.65	c Number of variables:  1665
7.57/7.65	c Number of clauses:    5177
7.57/7.65	c DBreduced=0 GV=101[0]  GL=5278[ 5177,101] Prune=287 decisions=185 restart=0 est=2.22226 DB Impl=21823[0]  
7.57/7.65	c DBreduced=0 GV=153[0]  GL=5329[ 5177,152] Prune=435 decisions=281 restart=1 est=3.12316 DB Impl=32139[0]  
7.57/7.65	c DBreduced=0 GV=226[0]  GL=5402[ 5177,225] Prune=655 decisions=428 restart=2 est=3.12316 DB Impl=48466[0]  
7.57/7.65	c DBreduced=0 GV=338[0]  GL=5514[ 5177,337] Prune=920 decisions=581 restart=3 est=3.12381 DB Impl=71918[0]  
7.57/7.65	c DBreduced=0 GV=507[0]  GL=5683[ 5177,506] Prune=1302 decisions=794 restart=4 est=3.12406 DB Impl=107419[0]  
7.57/7.65	c DBreduced=0 GV=762[0]  GL=5938[ 5177,761] Prune=1942 decisions=1179 restart=5 est=3.12341 DB Impl=163034[0]  
7.57/7.65	c DBreduced=0 GV=1140[0]  GL=6316[ 5177,1139] Prune=2825 decisions=1684 restart=6 est=3.12327 DB Impl=250262[0]  
7.57/7.65	c DBreduced=0 GV=1710[0]  GL=6886[ 5177,1709] Prune=4185 decisions=2474 restart=7 est=3.12341 DB Impl=379803[0]  
7.57/7.65	c DBreduced=1 GV=2563[0]  GL=7493[ 5177,2316] Prune=6085 decisions=3521 restart=8 est=3.12338 DB Impl=576110[0]  
7.57/7.65	c DBreduced=3 GV=3845[0]  GL=7416[ 5177,2239] Prune=9071 decisions=5225 restart=9 est=3.12341 DB Impl=843974[0]  
7.57/7.65	c DBreduced=4 GV=5767[0]  GL=8042[ 5177,2865] Prune=13527 decisions=7759 restart=10 est=3.18365 DB Impl=1266357[0]  
7.57/7.65	c DBreduced=6 GV=8650[0]  GL=8136[ 5177,2959] Prune=20114 decisions=11463 restart=11 est=3.18383 DB Impl=1902237[0]  
7.57/7.65	c DBreduced=8 GV=12975[0]  GL=9312[ 5177,4135] Prune=29941 decisions=16965 restart=12 est=3.244 DB Impl=2857142[0]  
7.57/7.65	c DBreduced=11 GV=19462[0]  GL=9739[ 5177,4562] Prune=44424 decisions=24961 restart=13 est=3.36358 DB Impl=4294794[0]  
7.57/7.65	c DBreduced=14 GV=29193[0]  GL=11432[ 5177,6255] Prune=66278 decisions=37084 restart=14 est=3.60393 DB Impl=6484969[0]  
7.57/7.65	c #Total time (in seconds): 7.64884
7.57/7.65	c #Memory used (in MB): 5.47266
7.57/7.65	c 
7.57/7.65	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-312230-1172584005 -o ROOT/results/node11/solver-312230-1172584005 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312230-1172584005/cmusat_base /tmp/evaluation/312230-1172584005/instance-312230-1172584005.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: 1.00 1.00 1.00 3/77 17459
/proc/meminfo: memFree=1566000/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=2488 CPUtime=0
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 197 0 0 0 0 0 0 0 18 0 1 0 278355016 2547712 179 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 135064935 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 622 179 90 241 0 378 0

[startup+0.107202 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 17459
/proc/meminfo: memFree=1566000/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=2976 CPUtime=0.1
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 346 0 0 0 10 0 0 0 18 0 1 0 278355016 3047424 328 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134564497 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 744 328 109 241 0 500 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2976

[startup+0.515249 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 17459
/proc/meminfo: memFree=1566000/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=3536 CPUtime=0.51
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 502 0 0 0 51 0 0 0 22 0 1 0 278355016 3620864 484 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134562963 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 884 484 109 241 0 640 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3536

[startup+1.33835 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17460
/proc/meminfo: memFree=1564136/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=3844 CPUtime=1.33
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 566 0 0 0 133 0 0 0 25 0 1 0 278355016 3936256 548 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134551415 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 961 548 109 241 0 717 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3844

[startup+2.97754 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17460
/proc/meminfo: memFree=1563752/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=5196 CPUtime=2.97
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 863 0 0 0 297 0 0 0 25 0 1 0 278355016 5320704 845 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134559860 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 1299 845 109 241 0 1055 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 5196

[startup+6.25393 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17460
/proc/meminfo: memFree=1562544/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=5400 CPUtime=6.25
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 939 0 0 0 625 0 0 0 25 0 1 0 278355016 5529600 911 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 1350 911 109 241 0 1106 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 5400

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

[startup+6.55996 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17460
/proc/meminfo: memFree=1562544/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=5604 CPUtime=6.55
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 992 0 0 0 655 0 0 0 25 0 1 0 278355016 5738496 964 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134560047 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 1401 964 109 241 0 1157 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 5604

[startup+7.38006 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17460
/proc/meminfo: memFree=1562288/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=5604 CPUtime=7.37
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 997 0 0 0 737 0 0 0 25 0 1 0 278355016 5738496 969 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134559798 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 1401 969 109 241 0 1157 0
Current children cumulated CPU time (s) 7.37
Current children cumulated vsize (KiB) 5604

[startup+7.58408 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17460
/proc/meminfo: memFree=1562288/2055920 swapFree=4192812/4192956
[pid=17459] ppid=17457 vsize=5604 CPUtime=7.57
/proc/17459/stat : 17459 (cmusat_base) R 17457 17459 17295 0 -1 4194304 1028 0 0 0 757 0 0 0 25 0 1 0 278355016 5738496 1000 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134560538 0 0 4096 35 0 0 0 17 1 0 0
/proc/17459/statm: 1401 1000 109 241 0 1157 0
Current children cumulated CPU time (s) 7.57
Current children cumulated vsize (KiB) 5604

Child status: 20
Real time (s): 7.65646
CPU time (s): 7.65384
CPU user time (s): 7.64884
CPU system time (s): 0.004999
CPU usage (%): 99.9657
Max. virtual memory (cumulated for all children) (KiB): 5604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.64884
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= 1037
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= 165

runsolver used 0.013997 second user time and 0.019996 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Tue Feb 27 13:46:45 UTC 2007

IDJOB= 312230
IDBENCH= 20335
IDSOLVER= 120
FILE ID= node11/312230-1172584005

PBS_JOBID= 3971699

Free space on /tmp= 66557 MiB

SOLVER NAME= CMUSAT BASE 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/312230-1172584005/cmusat_base /tmp/evaluation/312230-1172584005/instance-312230-1172584005.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-312230-1172584005 -o ROOT/results/node11/solver-312230-1172584005 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312230-1172584005/cmusat_base /tmp/evaluation/312230-1172584005/instance-312230-1172584005.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  a72030f9b5b8bc8b27629e6299239dd6

RANDOM SEED= 800465666

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:       1566408 kB
Buffers:         53428 kB
Cached:         322476 kB
SwapCached:          0 kB
Active:         252172 kB
Inactive:       167024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1566408 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2704 kB
Writeback:           0 kB
Mapped:          62204 kB
Slab:            55900 kB
Committed_AS:   824552 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 13:46:52 UTC 2007