Trace number 367642

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
MXC 2007-02-08UNSAT 49.7434 49.7938

General information on the benchmark

Nameindustrial/babic/dspam/
dspam_dump_vc972.cnf
MD5SUM7acb9e43e2272e8576b22c3fa49ba888
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.58561
Satisfiable
(Un)Satisfiability was proved
Number of variables274379
Number of clauses908255
Sum of the clauses size2423196
Maximum clause length3
Minimum clause length1
Number of clauses of size 15285
Number of clauses of size 2290999
Number of clauses of size 3611971
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

49.65/49.78	c MXC attempting /tmp/evaluation/367642-1177550870/instance-367642-1177550870.cnf
49.65/49.78	c 5585 assignments made, starting to guess now
49.65/49.78	c ===================================[MXC]=====================================
49.65/49.78	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
49.65/49.78	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
49.65/49.78	c =============================================================================
49.65/49.78	c |         0 |  611733  1835199 |  203911       0       0     nan |  2.035 % |
49.65/49.78	c |       101 |  611699  1835097 |  224302      71     272     3.8 |  2.038 % |
49.65/49.78	c |       251 |  611693  1835079 |  246732     220   17169    78.0 |  2.038 % |
49.65/49.78	c |       476 |  611687  1835061 |  271405     441   27442    62.2 |  2.038 % |
49.65/49.78	c |       815 |  611675  1835025 |  298546     737   78998   107.2 |  2.039 % |
49.65/49.78	c |      1321 |  611336  1834008 |  328400    1156   98740    85.4 |  2.062 % |
49.65/49.78	c |      2082 |  611331  1833993 |  361240    1914  123367    64.5 |  2.063 % |
49.65/49.78	c |      3222 |  611158  1833474 |  397364    2994  221447    74.0 |  2.075 % |
49.65/49.78	c |      4930 |  611158  1833474 |  437101    4698  388969    82.8 |  2.075 % |
49.65/49.78	c |      7492 |  601802  1805406 |  480811    7021  471581    67.2 |  2.398 % |
49.65/49.78	c |     11337 |  594479  1783437 |  528892   10781  684033    63.4 |  3.697 % |
49.65/49.78	c |     17103 |  594187  1782561 |  581781   16271  926856    57.0 |  3.715 % |
49.65/49.78	c |     25753 |  593915  1781745 |  639960   24551 1816307    74.0 |  3.716 % |
49.65/49.78	c 49.740s elapsed
49.65/49.78	c restarts: 12
49.65/49.78	c decisions: 251308
49.65/49.78	c propagations: 82714845
49.65/49.78	c conflicts: 32827
49.65/49.78	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node62/watcher-367642-1177550870 -o ROOT/results/node62/solver-367642-1177550870 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/367642-1177550870/mxc /tmp/evaluation/367642-1177550870/instance-367642-1177550870.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.09 1.11 1.01 3/64 19809
/proc/meminfo: memFree=1649640/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=19564 CPUtime=0
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 630 0 0 0 0 0 0 0 19 0 1 0 73663143 20033536 616 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 4891 622 42 122 0 4765 0

[startup+0.0163911 s]
/proc/loadavg: 1.09 1.11 1.01 3/64 19809
/proc/meminfo: memFree=1649640/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=19564 CPUtime=0.01
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 2638 0 0 0 0 1 0 0 19 0 1 0 73663143 20033536 2624 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 4891 2630 42 122 0 4765 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 19564

[startup+0.101401 s]
/proc/loadavg: 1.09 1.11 1.01 3/64 19809
/proc/meminfo: memFree=1649640/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=51160 CPUtime=0.09
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 11307 0 0 0 4 5 0 0 20 0 1 0 73663143 52387840 11292 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 12790 11293 46 122 0 12664 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 51160

[startup+0.301424 s]
/proc/loadavg: 1.09 1.11 1.01 3/64 19809
/proc/meminfo: memFree=1649640/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=63904 CPUtime=0.29
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 14255 0 0 0 23 6 0 0 21 0 1 0 73663143 65437696 14240 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 15976 14240 46 122 0 15850 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 63904

[startup+0.70147 s]
/proc/loadavg: 1.09 1.11 1.01 3/64 19809
/proc/meminfo: memFree=1649640/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=62764 CPUtime=0.69
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 18438 0 0 0 62 7 0 0 25 0 1 0 73663143 64270336 13765 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519232 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 15691 13765 57 122 0 15565 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 62764

[startup+1.50156 s]
/proc/loadavg: 1.09 1.11 1.01 2/65 19810
/proc/meminfo: memFree=1593248/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=64216 CPUtime=1.49
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 18831 0 0 0 141 8 0 0 25 0 1 0 73663143 65757184 14158 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519599 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 16054 14158 59 122 0 15928 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 64216

[startup+3.10175 s]
/proc/loadavg: 1.09 1.11 1.01 2/65 19810
/proc/meminfo: memFree=1592608/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=64612 CPUtime=3.09
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 18927 0 0 0 301 8 0 0 25 0 1 0 73663143 66162688 14254 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134534124 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 16153 14254 59 122 0 16027 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 64612

[startup+6.3012 s]
/proc/loadavg: 1.08 1.11 1.01 2/65 19810
/proc/meminfo: memFree=1592032/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=65272 CPUtime=6.29
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 19095 0 0 0 621 8 0 0 25 0 1 0 73663143 66838528 14422 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134534127 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 16318 14422 59 122 0 16192 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 65272

[startup+12.7019 s]
/proc/loadavg: 1.08 1.11 1.01 2/65 19810
/proc/meminfo: memFree=1591520/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=66212 CPUtime=12.69
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 19316 0 0 0 1261 8 0 0 25 0 1 0 73663143 67801088 14643 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519251 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 16553 14643 59 122 0 16427 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 66212

[startup+25.5014 s]
/proc/loadavg: 1.06 1.10 1.01 2/65 19810
/proc/meminfo: memFree=1588000/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=69700 CPUtime=25.48
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 20225 0 0 0 2540 8 0 0 25 0 1 0 73663143 71372800 15552 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134528451 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 17425 15552 59 122 0 17299 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 69700

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

[startup+38.3019 s]
/proc/loadavg: 1.05 1.10 1.01 2/65 19810
/proc/meminfo: memFree=1584160/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=74056 CPUtime=38.26
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 21314 0 0 0 3817 9 0 0 25 0 1 0 73663143 75833344 16641 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 18514 16641 59 122 0 18388 0
Current children cumulated CPU time (s) 38.26
Current children cumulated vsize (KiB) 74056

[startup+44.7016 s]
/proc/loadavg: 1.04 1.09 1.00 2/65 19810
/proc/meminfo: memFree=1579744/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=78412 CPUtime=44.66
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 22407 0 0 0 4456 10 0 0 25 0 1 0 73663143 80293888 17734 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531181 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 19603 17734 59 122 0 19477 0
Current children cumulated CPU time (s) 44.66
Current children cumulated vsize (KiB) 78412

[startup+47.902 s]
/proc/loadavg: 1.04 1.09 1.00 2/65 19810
/proc/meminfo: memFree=1576736/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=81448 CPUtime=47.86
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 23175 0 0 0 4775 11 0 0 25 0 1 0 73663143 83402752 18502 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530291 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 20362 18502 59 122 0 20236 0
Current children cumulated CPU time (s) 47.86
Current children cumulated vsize (KiB) 81448

[startup+48.7011 s]
/proc/loadavg: 1.04 1.09 1.00 2/65 19810
/proc/meminfo: memFree=1575584/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=82240 CPUtime=48.65
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 23351 0 0 0 4854 11 0 0 25 0 1 0 73663143 84213760 18678 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 20560 18678 59 122 0 20434 0
Current children cumulated CPU time (s) 48.65
Current children cumulated vsize (KiB) 82240

[startup+49.5052 s]
/proc/loadavg: 1.04 1.09 1.00 2/65 19810
/proc/meminfo: memFree=1574624/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=82900 CPUtime=49.46
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 23528 0 0 0 4935 11 0 0 25 0 1 0 73663143 84889600 18855 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134529589 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 20725 18855 59 122 0 20599 0
Current children cumulated CPU time (s) 49.46
Current children cumulated vsize (KiB) 82900

[startup+49.7012 s]
/proc/loadavg: 1.04 1.09 1.00 2/65 19810
/proc/meminfo: memFree=1574624/2055920 swapFree=4184584/4192956
[pid=19809] ppid=19807 vsize=83164 CPUtime=49.65
/proc/19809/stat : 19809 (mxc) R 19807 19809 18261 0 -1 4194304 23573 0 0 0 4954 11 0 0 25 0 1 0 73663143 85159936 18900 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519890 0 0 4096 0 0 0 0 17 0 0 0
/proc/19809/statm: 20791 18900 59 122 0 20665 0
Current children cumulated CPU time (s) 49.65
Current children cumulated vsize (KiB) 83164

Child status: 20
Real time (s): 49.7938
CPU time (s): 49.7434
CPU user time (s): 49.6135
CPU system time (s): 0.12998
CPU usage (%): 99.8989
Max. virtual memory (cumulated for all children) (KiB): 83164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 49.6135
system time used= 0.12998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 23582
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= 127

runsolver used 0.047992 second user time and 0.137979 second system time

The end

Launcher Data (download as text)

Begin job on node62 on Thu Apr 26 01:27:51 UTC 2007

IDJOB= 367642
IDBENCH= 20451
IDSOLVER= 174
FILE ID= node62/367642-1177550870

PBS_JOBID= 4696399

Free space on /tmp= 66501 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/dspam/dspam_dump_vc972.cnf
COMMAND LINE= /tmp/evaluation/367642-1177550870/mxc /tmp/evaluation/367642-1177550870/instance-367642-1177550870.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node62/watcher-367642-1177550870 -o ROOT/results/node62/solver-367642-1177550870 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/367642-1177550870/mxc /tmp/evaluation/367642-1177550870/instance-367642-1177550870.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  7acb9e43e2272e8576b22c3fa49ba888

RANDOM SEED= 61961653

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node62.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		: 3000.216
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		: 3000.216
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:       1650048 kB
Buffers:         22412 kB
Cached:         298720 kB
SwapCached:       2548 kB
Active:         191608 kB
Inactive:       159404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1650048 kB
SwapTotal:     4192956 kB
SwapFree:      4184584 kB
Dirty:           19380 kB
Writeback:           0 kB
Mapped:          36276 kB
Slab:            40752 kB
Committed_AS:  1214916 kB
PageTables:       1520 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= 66501 MiB

End job on node62 on Thu Apr 26 01:28:41 UTC 2007