Trace number 1553198

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SAT07 reference solver: picosat 535UNSAT 38.8841 38.8958

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor064.cnf
MD5SUM1a151a1e93387c74239b48070e3eed97
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72543
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

38.78/38.89	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1553198-1238712336/watcher-1553198-1238712336 -o /tmp/evaluation-result-1553198-1238712336/solver-1553198-1238712336 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1553198-1238712336.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): 1800 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: 2.03 1.93 1.91 3/81 22812
/proc/meminfo: memFree=1344368/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=568 CPUtime=0
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 80 0 0 0 0 0 0 0 20 0 1 0 1143897394 581632 66 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 142 66 40 102 0 37 0

[startup+0.093785 s]
/proc/loadavg: 2.03 1.93 1.91 3/81 22812
/proc/meminfo: memFree=1344368/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=1344 CPUtime=0.08
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 241 0 0 0 4 4 0 0 20 0 1 0 1143897394 1376256 227 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 336 227 40 102 0 231 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1344

[startup+0.101783 s]
/proc/loadavg: 2.03 1.93 1.91 3/81 22812
/proc/meminfo: memFree=1344368/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=1344 CPUtime=0.09
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 246 0 0 0 4 5 0 0 20 0 1 0 1143897394 1376256 232 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 336 232 40 102 0 231 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1344

[startup+0.301803 s]
/proc/loadavg: 2.03 1.93 1.91 3/81 22812
/proc/meminfo: memFree=1344368/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=2480 CPUtime=0.29
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 550 0 0 0 13 16 0 0 22 0 1 0 1143897394 2539520 536 1992294400 134512640 134931368 4294956224 18446744073709551615 134544710 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 620 536 42 102 0 515 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2480

[startup+0.701848 s]
/proc/loadavg: 2.03 1.93 1.91 3/81 22812
/proc/meminfo: memFree=1344368/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=2964 CPUtime=0.69
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 660 0 0 0 53 16 0 0 25 0 1 0 1143897394 3035136 638 1992294400 134512640 134931368 4294956224 18446744073709551615 134583827 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 741 638 42 102 0 636 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2964

[startup+1.50294 s]
/proc/loadavg: 2.03 1.93 1.91 2/82 22813
/proc/meminfo: memFree=1341608/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=3500 CPUtime=1.49
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 771 0 0 0 133 16 0 0 25 0 1 0 1143897394 3584000 747 1992294400 134512640 134931368 4294956224 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 875 747 48 102 0 770 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3500

[startup+3.10112 s]
/proc/loadavg: 1.95 1.92 1.91 2/82 22813
/proc/meminfo: memFree=1341224/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=4012 CPUtime=3.09
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 904 0 0 0 293 16 0 0 25 0 1 0 1143897394 4108288 880 1992294400 134512640 134931368 4294956224 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 1003 880 48 102 0 898 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4012

[startup+6.30147 s]
/proc/loadavg: 1.95 1.92 1.91 2/82 22813
/proc/meminfo: memFree=1340264/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=5164 CPUtime=6.29
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1181 0 0 0 613 16 0 0 25 0 1 0 1143897394 5287936 1157 1992294400 134512640 134931368 4294956224 18446744073709551615 134549433 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 1291 1157 48 102 0 1186 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5164

[startup+12.7012 s]
/proc/loadavg: 1.80 1.89 1.90 2/82 22813
/proc/meminfo: memFree=1338992/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=5804 CPUtime=12.69
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1350 0 0 0 1253 16 0 0 25 0 1 0 1143897394 5943296 1326 1992294400 134512640 134931368 4294956224 18446744073709551615 134529600 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 1451 1326 48 102 0 1346 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 5804

[startup+25.5016 s]
/proc/loadavg: 1.68 1.86 1.89 2/82 22813
/proc/meminfo: memFree=1337648/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=7060 CPUtime=25.48
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1703 0 0 0 2532 16 0 0 25 0 1 0 1143897394 7229440 1652 1992294400 134512640 134931368 4294956224 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 1765 1652 48 102 0 1660 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 7060

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

[startup+31.9063 s]
/proc/loadavg: 1.57 1.83 1.88 2/82 22814
/proc/meminfo: memFree=1336688/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=8096 CPUtime=31.88
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1955 0 0 0 3172 16 0 0 25 0 1 0 1143897394 8290304 1904 1992294400 134512640 134931368 4294956224 18446744073709551615 134530094 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 2024 1904 48 102 0 1919 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 8096

[startup+35.1017 s]
/proc/loadavg: 1.57 1.83 1.88 2/82 22814
/proc/meminfo: memFree=1336688/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=8096 CPUtime=35.08
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1955 0 0 0 3492 16 0 0 25 0 1 0 1143897394 8290304 1904 1992294400 134512640 134931368 4294956224 18446744073709551615 134525814 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 2024 1904 48 102 0 1919 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 8096

[startup+36.7019 s]
/proc/loadavg: 1.57 1.83 1.88 2/82 22814
/proc/meminfo: memFree=1336688/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=8096 CPUtime=36.68
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1956 0 0 0 3652 16 0 0 25 0 1 0 1143897394 8290304 1905 1992294400 134512640 134931368 4294956224 18446744073709551615 134522694 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 2024 1905 48 102 0 1919 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 8096

[startup+37.5019 s]
/proc/loadavg: 1.53 1.82 1.87 2/82 22814
/proc/meminfo: memFree=1336688/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=8096 CPUtime=37.48
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1956 0 0 0 3732 16 0 0 25 0 1 0 1143897394 8290304 1905 1992294400 134512640 134931368 4294956224 18446744073709551615 134529203 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 2024 1905 48 102 0 1919 0
Current children cumulated CPU time (s) 37.48
Current children cumulated vsize (KiB) 8096

[startup+38.301 s]
/proc/loadavg: 1.53 1.82 1.87 2/82 22814
/proc/meminfo: memFree=1336688/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=8096 CPUtime=38.28
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1956 0 0 0 3812 16 0 0 25 0 1 0 1143897394 8290304 1905 1992294400 134512640 134931368 4294956224 18446744073709551615 134529977 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 2024 1905 48 102 0 1919 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 8096

[startup+38.7011 s]
/proc/loadavg: 1.53 1.82 1.87 2/82 22814
/proc/meminfo: memFree=1336688/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=8096 CPUtime=38.68
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1956 0 0 0 3852 16 0 0 25 0 1 0 1143897394 8290304 1905 1992294400 134512640 134931368 4294956224 18446744073709551615 134529900 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 2024 1905 48 102 0 1919 0
Current children cumulated CPU time (s) 38.68
Current children cumulated vsize (KiB) 8096

[startup+38.8011 s]
/proc/loadavg: 1.53 1.82 1.87 2/82 22814
/proc/meminfo: memFree=1336688/2055920 swapFree=4172780/4192956
[pid=22812] ppid=22810 vsize=8096 CPUtime=38.78
/proc/22812/stat : 22812 (picosat) R 22810 22812 22745 0 -1 4194304 1956 0 0 0 3862 16 0 0 25 0 1 0 1143897394 8290304 1905 1992294400 134512640 134931368 4294956224 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 2024 1905 48 102 0 1919 0
Current children cumulated CPU time (s) 38.78
Current children cumulated vsize (KiB) 8096

Child status: 20
Real time (s): 38.8958
CPU time (s): 38.8841
CPU user time (s): 38.7161
CPU system time (s): 0.167974
CPU usage (%): 99.9699
Max. virtual memory (cumulated for all children) (KiB): 8096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 38.7161
system time used= 0.167974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1959
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= 2
involuntary context switches= 51

runsolver used 0.044993 second user time and 0.141978 second system time

The end

Launcher Data 

Begin job on node87 at 2009-04-03 00:45:36
IDJOB=1553198
IDBENCH=70756
IDSOLVER=563
FILE ID=node87/1553198-1238712336
PBS_JOBID= 9085321
Free space on /tmp= 66084 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor064.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553198-1238712336/watcher-1553198-1238712336 -o /tmp/evaluation-result-1553198-1238712336/solver-1553198-1238712336 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1553198-1238712336.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 1a151a1e93387c74239b48070e3eed97
RANDOM SEED=1077404968

node87.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.236
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		: 3000.236
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:       1344784 kB
Buffers:         80072 kB
Cached:         538296 kB
SwapCached:       9408 kB
Active:         207612 kB
Inactive:       421704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1344784 kB
SwapTotal:     4192956 kB
SwapFree:      4172780 kB
Dirty:            1116 kB
Writeback:           0 kB
Mapped:          16408 kB
Slab:            65956 kB
Committed_AS:  2838912 kB
PageTables:       2676 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= 66084 MiB
End job on node87 at 2009-04-03 00:46:15