Trace number 370072

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 2007-02-08SAT 5.66414 5.68444

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
sat-pbl-00400.sat05-1322.reshuffled-07.cnf
MD5SUM29cf0f53dfca3fe2e94789628bed3971
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark3.41648
Satisfiable
(Un)Satisfiability was proved
Number of variables1497
Number of clauses73374
Sum of the clauses size615277
Maximum clause length11
Minimum clause length1
Number of clauses of size 16
Number of clauses of size 242
Number of clauses of size 3337
Number of clauses of size 4413
Number of clauses of size 53127
Number of clauses of size over 569449

Solver Data (download as text)

5.59/5.67	c MXC attempting /tmp/evaluation/370072-1177551904/instance-370072-1177551904.cnf
5.59/5.67	c 6 assignments made, starting to guess now
5.59/5.67	c ===================================[MXC]=====================================
5.59/5.67	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
5.59/5.67	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
5.59/5.67	c =============================================================================
5.59/5.67	c |         0 |   73320   615012 |   24440       0       0     nan |  0.401 % |
5.59/5.67	c |       100 |   73309   614979 |   26884      96     932     9.7 |  0.468 % |
5.59/5.67	c |       250 |   73309   614979 |   29572     246    2946    12.0 |  0.468 % |
5.59/5.67	c |       476 |   73309   614979 |   32529     472    5019    10.6 |  0.468 % |
5.59/5.67	c |       813 |   73307   614973 |   35782     807    9988    12.4 |  0.534 % |
5.59/5.67	c |      1320 |   73304   614002 |   39360    1311   18819    14.4 |  0.668 % |
5.59/5.67	c |      2079 |   73304   614002 |   43296    2070   32704    15.8 |  0.668 % |
5.59/5.67	c |      3219 |   73304   614002 |   47626    3210   58219    18.1 |  0.668 % |
5.59/5.67	c |      4927 |   73304   614002 |   52389    4918   96664    19.7 |  0.668 % |
5.59/5.67	c |      7489 |   73304   614002 |   57628    7480  183264    24.5 |  0.668 % |
5.59/5.67	c |     11333 |   73304   614002 |   63391   11324  248458    21.9 |  0.668 % |
5.59/5.67	c |     17100 |   73304   614002 |   69730   17091  383551    22.4 |  0.668 % |
5.59/5.67	c |     25750 |   73304   614002 |   76703   25740  594753    23.1 |  0.668 % |
5.59/5.67	c |     38724 |   73304   614002 |   84373   38714  974464    25.2 |  0.668 % |
5.59/5.67	c |     58185 |   73304   614002 |   92810   58171 2296582    39.5 |  0.668 % |
5.59/5.67	c |     87377 |   73304   614002 |  102091   87362 2909647    33.3 |  0.668 % |
5.59/5.67	c 5.660s elapsed
5.59/5.67	c restarts: 15
5.59/5.67	c decisions: 342332
5.59/5.67	c propagations: 965969
5.59/5.67	c conflicts: 110742
5.59/5.67	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node63/watcher-370072-1177551904 -o ROOT/results/node63/solver-370072-1177551904 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370072-1177551904/mxc /tmp/evaluation/370072-1177551904/instance-370072-1177551904.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: 0.86 0.98 0.92 2/64 9780
/proc/meminfo: memFree=1550964/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=3928 CPUtime=0
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 172 0 0 0 0 0 0 0 20 0 1 0 231180357 4022272 157 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 982 164 42 122 0 856 0

[startup+0.0753791 s]
/proc/loadavg: 0.86 0.98 0.92 2/64 9780
/proc/meminfo: memFree=1550964/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=5808 CPUtime=0.06
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 1994 0 0 0 6 0 0 0 20 0 1 0 231180357 5947392 1230 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134520508 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 1452 1230 47 122 0 1326 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5808

[startup+0.101381 s]
/proc/loadavg: 0.86 0.98 0.92 2/64 9780
/proc/meminfo: memFree=1550964/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=6204 CPUtime=0.08
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 2098 0 0 0 8 0 0 0 20 0 1 0 231180357 6352896 1334 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134520760 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 1551 1334 59 122 0 1425 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6204

[startup+0.301402 s]
/proc/loadavg: 0.86 0.98 0.92 2/64 9780
/proc/meminfo: memFree=1550964/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=6864 CPUtime=0.29
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 2259 0 0 0 28 1 0 0 21 0 1 0 231180357 7028736 1495 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134520532 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 1716 1495 59 122 0 1590 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6864

[startup+0.701444 s]
/proc/loadavg: 0.86 0.98 0.92 2/64 9780
/proc/meminfo: memFree=1550964/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=8344 CPUtime=0.69
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 2641 0 0 0 68 1 0 0 25 0 1 0 231180357 8544256 1877 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519284 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 2086 1877 59 122 0 1960 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8344

[startup+1.50153 s]
/proc/loadavg: 0.86 0.98 0.92 2/65 9781
/proc/meminfo: memFree=1542380/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=11640 CPUtime=1.48
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 3443 0 0 0 147 1 0 0 25 0 1 0 231180357 11919360 2679 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 2910 2679 59 122 0 2784 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 11640

[startup+3.10271 s]
/proc/loadavg: 0.87 0.98 0.92 2/65 9781
/proc/meminfo: memFree=1536812/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=19308 CPUtime=3.08
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 5303 0 0 0 306 2 0 0 25 0 1 0 231180357 19771392 4539 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530542 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 4827 4539 59 122 0 4701 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 19308

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

[startup+4.70187 s]
/proc/loadavg: 0.87 0.98 0.92 2/65 9781
/proc/meminfo: memFree=1530284/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=22776 CPUtime=4.69
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 6197 0 0 0 466 3 0 0 25 0 1 0 231180357 23322624 5433 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 5694 5433 59 122 0 5568 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 22776

[startup+5.10191 s]
/proc/loadavg: 0.87 0.98 0.92 2/65 9781
/proc/meminfo: memFree=1530284/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=23708 CPUtime=5.09
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 6551 0 0 0 505 4 0 0 25 0 1 0 231180357 24276992 5685 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134534734 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 5927 5685 67 122 0 5801 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 23708

[startup+5.50495 s]
/proc/loadavg: 0.87 0.98 0.92 2/65 9781
/proc/meminfo: memFree=1527980/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=23708 CPUtime=5.49
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 6551 0 0 0 545 4 0 0 25 0 1 0 231180357 24276992 5685 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 5927 5685 67 122 0 5801 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 23708

[startup+5.60196 s]
/proc/loadavg: 0.87 0.98 0.92 2/65 9781
/proc/meminfo: memFree=1527980/2055920 swapFree=4182896/4192956
[pid=9780] ppid=9778 vsize=23708 CPUtime=5.59
/proc/9780/stat : 9780 (mxc) R 9778 9780 7773 0 -1 4194304 6551 0 0 0 555 4 0 0 25 0 1 0 231180357 24276992 5685 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519302 0 0 4096 0 0 0 0 17 1 0 0
/proc/9780/statm: 5927 5685 67 122 0 5801 0
Current children cumulated CPU time (s) 5.59
Current children cumulated vsize (KiB) 23708

Child status: 10
Real time (s): 5.68444
CPU time (s): 5.66414
CPU user time (s): 5.61915
CPU system time (s): 0.044993
CPU usage (%): 99.6429
Max. virtual memory (cumulated for all children) (KiB): 24108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.61914
system time used= 0.044993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6553
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= 11
involuntary context switches= 25

runsolver used 0.004999 second user time and 0.019996 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Thu Apr 26 01:45:04 UTC 2007

IDJOB= 370072
IDBENCH= 24584
IDSOLVER= 181
FILE ID= node63/370072-1177551904

PBS_JOBID= 4696541

Free space on /tmp= 66485 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/sat-pbl-00400.sat05-1322.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370072-1177551904/mxc /tmp/evaluation/370072-1177551904/instance-370072-1177551904.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-370072-1177551904 -o ROOT/results/node63/solver-370072-1177551904 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370072-1177551904/mxc /tmp/evaluation/370072-1177551904/instance-370072-1177551904.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  29cf0f53dfca3fe2e94789628bed3971

RANDOM SEED= 412685834

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.232
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		: 3000.232
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:       1551372 kB
Buffers:         30452 kB
Cached:         373332 kB
SwapCached:       4556 kB
Active:         292344 kB
Inactive:       159500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1551372 kB
SwapTotal:     4192956 kB
SwapFree:      4182896 kB
Dirty:            3692 kB
Writeback:           0 kB
Mapped:          53300 kB
Slab:            38556 kB
Committed_AS:  2307588 kB
PageTables:       1592 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= 66485 MiB

End job on node63 on Thu Apr 26 01:45:10 UTC 2007