Trace number 332353

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 23.9894 24.0118

General information on the benchmark

Namecrafted/Medium/contest05/sabharwal/
unsat-logistics-rotate-09t5.sat05-1139.reshuffled-07.cnf
MD5SUMc5c0a2288884b75d2d577cb8c5efb4c6
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.65384
Satisfiable
(Un)Satisfiability was proved
Number of variables4336
Number of clauses214585
Sum of the clauses size431502
Maximum clause length11
Minimum clause length1
Number of clauses of size 189
Number of clauses of size 2213987
Number of clauses of size 3252
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 5257

Solver Data (download as text)

23.97/24.00	c MXC attempting /tmp/evaluation/332353-1173474998/instance-332353-1173474998.cnf
23.97/24.00	c 89 assignments made, starting to guess now
23.97/24.00	c ===================================[MXC]=====================================
23.97/24.00	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
23.97/24.00	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
23.97/24.00	c =============================================================================
23.97/24.00	c |         0 |     509     3439 |    1000       0       0     nan |  2.053 % |
23.97/24.00	c |       100 |     509     3439 |    1100      69    1943    28.2 |  2.053 % |
23.97/24.00	c |       251 |     509     3439 |    1210     180    5408    30.0 |  2.053 % |
23.97/24.00	c |       477 |     509     3439 |    1331     332    9740    29.3 |  2.053 % |
23.97/24.00	c |       814 |     509     3439 |    1464     573   16060    28.0 |  2.053 % |
23.97/24.00	c |      1322 |     509     3439 |    1610    1005   31341    31.2 |  2.053 % |
23.97/24.00	c |      2081 |     509     3439 |    1771     890   31636    35.5 |  2.053 % |
23.97/24.00	c |      3221 |     509     3439 |    1948    1078   38547    35.8 |  2.053 % |
23.97/24.00	c |      4929 |     509     3439 |    2143    1695   69146    40.8 |  2.053 % |
23.97/24.00	c |      7491 |     509     3439 |    2357    2021   72660    36.0 |  2.053 % |
23.97/24.00	c |     11335 |     509     3439 |    2593    2217  113197    51.1 |  2.053 % |
23.97/24.00	c |     17102 |     509     3438 |    2853    1387   67260    48.5 |  2.076 % |
23.97/24.00	c |     25753 |     509     3438 |    3138    2773  107582    38.8 |  2.076 % |
23.97/24.00	c |     38727 |     509     3438 |    3452    2979  153815    51.6 |  2.076 % |
23.97/24.00	c |     58188 |     509     3433 |    3797    3136  171396    54.7 |  2.191 % |
23.97/24.00	c |     87380 |     509     3432 |    4177    3700  218450    59.0 |  2.214 % |
23.97/24.00	c |    131169 |     509     3426 |    4594    3518  178314    50.7 |  2.352 % |
23.97/24.00	c |    196854 |     509     3422 |    5054    2576  123501    47.9 |  2.445 % |
23.97/24.00	c 23.980s elapsed
23.97/24.00	c restarts: 17
23.97/24.00	c decisions: 256128
23.97/24.00	c propagations: 34964974
23.97/24.00	c conflicts: 215971
23.97/24.00	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/node15/watcher-332353-1173474998 -o ROOT/results/node15/solver-332353-1173474998 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332353-1173474998/mxc /tmp/evaluation/332353-1173474998/instance-332353-1173474998.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: 0.98 0.98 0.99 3/77 13458
/proc/meminfo: memFree=1583760/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=3764 CPUtime=0
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 776 0 0 0 0 0 0 0 18 0 1 0 367454207 3854336 760 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134703068 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 941 768 46 122 0 815 0

[startup+0.065077 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 13458
/proc/meminfo: memFree=1583760/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=6940 CPUtime=0.05
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 1560 0 0 0 5 0 0 0 18 0 1 0 367454207 7106560 1544 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134518132 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1735 1544 46 122 0 1609 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6940

[startup+0.101083 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 13458
/proc/meminfo: memFree=1583760/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=4312 CPUtime=0.09
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 1574 0 0 0 9 0 0 0 18 0 1 0 367454207 4415488 901 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1078 901 59 122 0 952 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4312

[startup+0.301117 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 13458
/proc/meminfo: memFree=1583760/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=4320 CPUtime=0.29
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 1598 0 0 0 29 0 0 0 19 0 1 0 367454207 4423680 923 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519771 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1080 923 67 122 0 954 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4320

[startup+0.701186 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 13458
/proc/meminfo: memFree=1583760/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=4452 CPUtime=0.69
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 1649 0 0 0 69 0 0 0 22 0 1 0 367454207 4558848 974 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134531284 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1113 974 67 122 0 987 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4452

[startup+1.50132 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1579912/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=4844 CPUtime=1.49
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 1740 0 0 0 149 0 0 0 25 0 1 0 367454207 4960256 1065 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134531179 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1211 1065 67 122 0 1085 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4844

[startup+3.1016 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1579592/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=5236 CPUtime=3.08
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 1827 0 0 0 308 0 0 0 25 0 1 0 367454207 5361664 1152 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134529959 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1309 1152 67 122 0 1183 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 5236

[startup+6.30115 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1578952/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=5484 CPUtime=6.28
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 1894 0 0 0 628 0 0 0 25 0 1 0 367454207 5615616 1219 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519721 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1371 1219 67 122 0 1245 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 5484

[startup+12.7012 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1578464/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=5884 CPUtime=12.68
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 1991 0 0 0 1268 0 0 0 25 0 1 0 367454207 6025216 1316 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134529392 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1471 1316 67 122 0 1345 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 5884

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

[startup+19.1013 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1578400/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=6004 CPUtime=19.08
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 2027 0 0 0 1908 0 0 0 25 0 1 0 367454207 6148096 1352 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1501 1352 67 122 0 1375 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 6004

[startup+22.3019 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1578336/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=6116 CPUtime=22.28
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 2047 0 0 0 2228 0 0 0 25 0 1 0 367454207 6262784 1372 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519659 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1529 1372 67 122 0 1403 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 6116

[startup+23.106 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1578272/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=6116 CPUtime=23.08
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 2056 0 0 0 2308 0 0 0 25 0 1 0 367454207 6262784 1381 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1529 1381 67 122 0 1403 0
Current children cumulated CPU time (s) 23.08
Current children cumulated vsize (KiB) 6116

[startup+23.5011 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1578272/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=6116 CPUtime=23.48
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 2063 0 0 0 2348 0 0 0 25 0 1 0 367454207 6262784 1388 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519096 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1529 1388 67 122 0 1403 0
Current children cumulated CPU time (s) 23.48
Current children cumulated vsize (KiB) 6116

[startup+23.9012 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1578272/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=6260 CPUtime=23.88
/proc/13458/stat : 13458 (mxc) R 13456 13458 11931 0 -1 4194304 2078 0 0 0 2388 0 0 0 25 0 1 0 367454207 6410240 1403 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1565 1403 67 122 0 1439 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 6260

[startup+24.0012 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 13459
/proc/meminfo: memFree=1578272/2055920 swapFree=4152672/4192956
[pid=13458] ppid=13456 vsize=6260 CPUtime=23.97
/proc/13458/stat : 13458 (mxc) S 13456 13458 11931 0 -1 4194304 2079 0 0 0 2397 0 0 0 25 0 1 0 367454207 6410240 1404 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/13458/statm: 1565 1404 67 122 0 1439 0
Current children cumulated CPU time (s) 23.97
Current children cumulated vsize (KiB) 6260

Child status: 20
Real time (s): 24.0118
CPU time (s): 23.9894
CPU user time (s): 23.9784
CPU system time (s): 0.010998
CPU usage (%): 99.9065
Max. virtual memory (cumulated for all children) (KiB): 6940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.9784
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2080
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= 9
involuntary context switches= 42

runsolver used 0.027995 second user time and 0.069989 second system time

The end

Launcher Data (download as text)

Begin job on node15 on Fri Mar  9 21:16:38 UTC 2007

IDJOB= 332353
IDBENCH= 24578
IDSOLVER= 107
FILE ID= node15/332353-1173474998

PBS_JOBID= 4101062

Free space on /tmp= 66457 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/sabharwal/unsat-logistics-rotate-09t5.sat05-1139.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332353-1173474998/mxc /tmp/evaluation/332353-1173474998/instance-332353-1173474998.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-332353-1173474998 -o ROOT/results/node15/solver-332353-1173474998 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332353-1173474998/mxc /tmp/evaluation/332353-1173474998/instance-332353-1173474998.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  c5c0a2288884b75d2d577cb8c5efb4c6

RANDOM SEED= 204298898

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node15.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		: 3000.276
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		: 3000.276
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:       1584168 kB
Buffers:         48344 kB
Cached:         335032 kB
SwapCached:       2796 kB
Active:         214392 kB
Inactive:       192604 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1584168 kB
SwapTotal:     4192956 kB
SwapFree:      4152672 kB
Dirty:            3280 kB
Writeback:           0 kB
Mapped:          30552 kB
Slab:            50196 kB
Committed_AS:  1285532 kB
PageTables:       1804 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= 66457 MiB

End job on node15 on Fri Mar  9 21:17:02 UTC 2007