Trace number 316275

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 7.81581 7.81947

General information on the benchmark

Namecrafted/spence/
medium/s57-100.cnf
MD5SUM4dc4c11d420a4a03c2a3fdf77861be5d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.703892
Satisfiable
(Un)Satisfiability was proved
Number of variables57
Number of clauses124
Sum of the clauses size372
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3124
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

7.79/7.81	c Number of variables:  57
7.79/7.81	c Number of clauses:    124
7.79/7.81	c DBreduced=0 GV=101[0]  GL=225[ 124,101] Prune=218 decisions=117 restart=0 est=0.0313283 DB Impl=2197[0]  
7.79/7.81	c DBreduced=0 GV=151[0]  GL=275[ 124,151] Prune=351 decisions=200 restart=1 est=0.0313283 DB Impl=3083[0]  
7.79/7.81	c DBreduced=0 GV=226[0]  GL=350[ 124,226] Prune=543 decisions=317 restart=2 est=0.0313283 DB Impl=4729[0]  
7.79/7.81	c DBreduced=0 GV=339[0]  GL=463[ 124,339] Prune=818 decisions=479 restart=3 est=0.0313283 DB Impl=7143[0]  
7.79/7.81	c DBreduced=0 GV=509[0]  GL=633[ 124,509] Prune=1200 decisions=691 restart=4 est=0.0313283 DB Impl=10623[0]  
7.79/7.81	c DBreduced=3 GV=760[0]  GL=839[ 124,715] Prune=1748 decisions=988 restart=5 est=0.0313293 DB Impl=15268[0]  
7.79/7.81	c DBreduced=4 GV=1140[0]  GL=862[ 124,738] Prune=2538 decisions=1398 restart=6 est=0.0313283 DB Impl=22405[0]  
7.79/7.81	c DBreduced=6 GV=1709[0]  GL=713[ 124,589] Prune=3737 decisions=2028 restart=7 est=0.0313295 DB Impl=33590[0]  
7.79/7.81	c DBreduced=7 GV=2563[0]  GL=1138[ 124,1014] Prune=5501 decisions=2938 restart=8 est=0.0313283 DB Impl=51632[0]  
7.79/7.81	c DBreduced=10 GV=3846[0]  GL=1033[ 124,909] Prune=8167 decisions=4321 restart=9 est=0.0313283 DB Impl=78111[0]  
7.79/7.81	c DBreduced=12 GV=5768[0]  GL=1783[ 124,1659] Prune=12202 decisions=6434 restart=10 est=0.0313283 DB Impl=115609[0]  
7.79/7.81	c DBreduced=15 GV=8650[0]  GL=2362[ 124,2238] Prune=18213 decisions=9563 restart=11 est=0.0313481 DB Impl=174878[0]  
7.79/7.81	c DBreduced=19 GV=12975[0]  GL=2431[ 124,2307] Prune=27218 decisions=14243 restart=12 est=0.0313285 DB Impl=260266[0]  
7.79/7.81	c DBreduced=22 GV=19462[0]  GL=4547[ 124,4423] Prune=40813 decisions=21351 restart=13 est=0.0318685 DB Impl=389327[0]  
7.79/7.81	c DBreduced=26 GV=29193[0]  GL=6219[ 124,6095] Prune=61290 decisions=32097 restart=14 est=0.0318883 DB Impl=582534[0]  
7.79/7.81	c DBreduced=30 GV=43790[0]  GL=9064[ 124,8940] Prune=91679 decisions=47889 restart=15 est=0.0325125 DB Impl=865108[0]  
7.79/7.81	c DBreduced=35 GV=65685[0]  GL=8596[ 124,8472] Prune=137380 decisions=71695 restart=16 est=1.78679 DB Impl=1267200[0]  
7.79/7.81	c #Total time (in seconds): 7.80981
7.79/7.81	c #Memory used (in MB): 6
7.79/7.81	c 
7.79/7.81	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node29/watcher-316275-1172666608 -o ROOT/results/node29/solver-316275-1172666608 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316275-1172666608/cmusat_base /tmp/evaluation/316275-1172666608/instance-316275-1172666608.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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 8769
/proc/meminfo: memFree=1763336/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=2176 CPUtime=0
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 154 0 0 0 0 0 0 0 18 0 1 0 260425103 2228224 136 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 135080264 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 544 136 110 241 0 300 0

[startup+0.094826 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 8769
/proc/meminfo: memFree=1763336/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=2444 CPUtime=0.09
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 202 0 0 0 9 0 0 0 18 0 1 0 260425103 2502656 184 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559842 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 611 184 110 241 0 367 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2444

[startup+0.101825 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 8769
/proc/meminfo: memFree=1763336/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=2444 CPUtime=0.09
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 205 0 0 0 9 0 0 0 18 0 1 0 260425103 2502656 187 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134551955 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 611 187 110 241 0 367 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2444

[startup+0.301837 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 8769
/proc/meminfo: memFree=1763336/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=2720 CPUtime=0.29
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 266 0 0 0 29 0 0 0 19 0 1 0 260425103 2785280 248 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559860 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 680 248 110 241 0 436 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2720

[startup+0.701862 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 8769
/proc/meminfo: memFree=1763336/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=3156 CPUtime=0.69
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 372 0 0 0 69 0 0 0 23 0 1 0 260425103 3231744 354 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134564434 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 789 354 110 241 0 545 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3156

[startup+1.50191 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 8770
/proc/meminfo: memFree=1762240/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=3292 CPUtime=1.49
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 445 0 0 0 149 0 0 0 25 0 1 0 260425103 3371008 427 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559872 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 823 427 111 241 0 579 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3292

[startup+3.10201 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 8770
/proc/meminfo: memFree=1761280/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=4364 CPUtime=3.09
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 677 0 0 0 309 0 0 0 25 0 1 0 260425103 4468736 659 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559905 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 1091 659 111 241 0 847 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4364

[startup+6.30121 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 8770
/proc/meminfo: memFree=1759680/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=5984 CPUtime=6.29
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 1052 0 0 0 629 0 0 0 25 0 1 0 260425103 6127616 979 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559857 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 1496 979 111 241 0 1252 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5984

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

[startup+7.10126 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 8770
/proc/meminfo: memFree=1759616/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=5984 CPUtime=7.09
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 1063 0 0 0 709 0 0 0 25 0 1 0 260425103 6127616 990 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 1496 990 111 241 0 1252 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 5984

[startup+7.50129 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 8770
/proc/meminfo: memFree=1759616/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=5984 CPUtime=7.49
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 1064 0 0 0 749 0 0 0 25 0 1 0 260425103 6127616 991 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560103 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 1496 991 111 241 0 1252 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 5984

[startup+7.7053 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 8770
/proc/meminfo: memFree=1759616/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=5984 CPUtime=7.69
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 1074 0 0 0 769 0 0 0 25 0 1 0 260425103 6127616 1001 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134550538 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 1496 1001 111 241 0 1252 0
Current children cumulated CPU time (s) 7.69
Current children cumulated vsize (KiB) 5984

[startup+7.8013 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 8770
/proc/meminfo: memFree=1759616/2055920 swapFree=4147644/4192956
[pid=8769] ppid=8767 vsize=6144 CPUtime=7.79
/proc/8769/stat : 8769 (cmusat_base) R 8767 8769 8287 0 -1 4194304 1116 0 0 0 779 0 0 0 25 0 1 0 260425103 6291456 1043 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559914 0 0 4096 35 0 0 0 17 1 0 0
/proc/8769/statm: 1536 1043 111 241 0 1292 0
Current children cumulated CPU time (s) 7.79
Current children cumulated vsize (KiB) 6144

Child status: 20
Real time (s): 7.81947
CPU time (s): 7.81581
CPU user time (s): 7.81081
CPU system time (s): 0.004999
CPU usage (%): 99.9532
Max. virtual memory (cumulated for all children) (KiB): 6144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.81081
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= 1124
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= 161

runsolver used 0.010998 second user time and 0.025996 second system time

The end

Launcher Data (download as text)

Begin job on node29 on Wed Feb 28 12:43:28 UTC 2007

IDJOB= 316275
IDBENCH= 20437
IDSOLVER= 120
FILE ID= node29/316275-1172666608

PBS_JOBID= 3981232

Free space on /tmp= 66529 MiB

SOLVER NAME= CMUSAT BASE 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s57-100.cnf
COMMAND LINE= /tmp/evaluation/316275-1172666608/cmusat_base /tmp/evaluation/316275-1172666608/instance-316275-1172666608.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-316275-1172666608 -o ROOT/results/node29/solver-316275-1172666608 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316275-1172666608/cmusat_base /tmp/evaluation/316275-1172666608/instance-316275-1172666608.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  4dc4c11d420a4a03c2a3fdf77861be5d

RANDOM SEED= 651795147

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node29.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		: 3000.209
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	: 5931.00
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		: 3000.209
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:       1763744 kB
Buffers:         22964 kB
Cached:         205052 kB
SwapCached:      11752 kB
Active:         114108 kB
Inactive:       136644 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1763744 kB
SwapTotal:     4192956 kB
SwapFree:      4147644 kB
Dirty:            2576 kB
Writeback:           0 kB
Mapped:          29700 kB
Slab:            26828 kB
Committed_AS:   784984 kB
PageTables:       1864 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= 66529 MiB

End job on node29 on Wed Feb 28 12:43:37 UTC 2007