Trace number 332605

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 5.66914 5.68427

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 benchmark3.46547
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/332605-1173483518/instance-332605-1173483518.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 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-332605-1173483518 -o ROOT/results/node2/solver-332605-1173483518 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332605-1173483518/mxc /tmp/evaluation/332605-1173483518/instance-332605-1173483518.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 21591
/proc/meminfo: memFree=1650808/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=3928 CPUtime=0
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 809 0 0 0 0 0 0 0 18 0 1 0 368306821 4022272 793 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 982 799 42 122 0 856 0

[startup+0.0512639 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 21591
/proc/meminfo: memFree=1650808/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=7492 CPUtime=0.04
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 1717 0 0 0 4 0 0 0 18 0 1 0 368306821 7671808 1701 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 1873 1702 46 122 0 1747 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 7492

[startup+0.101269 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 21591
/proc/meminfo: memFree=1650808/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=6204 CPUtime=0.09
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 2099 0 0 0 8 1 0 0 18 0 1 0 368306821 6352896 1334 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134520805 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 1551 1334 59 122 0 1425 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6204

[startup+0.301288 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 21591
/proc/meminfo: memFree=1650808/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=6864 CPUtime=0.29
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 2260 0 0 0 28 1 0 0 19 0 1 0 368306821 7028736 1495 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134520758 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 1716 1495 59 122 0 1590 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6864

[startup+0.70133 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 21591
/proc/meminfo: memFree=1650808/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=8344 CPUtime=0.69
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 2640 0 0 0 68 1 0 0 23 0 1 0 368306821 8544256 1875 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 2086 1875 59 122 0 1960 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8344

[startup+1.50141 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 21592
/proc/meminfo: memFree=1642288/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=11640 CPUtime=1.49
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 3437 0 0 0 148 1 0 0 25 0 1 0 368306821 11919360 2672 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 2910 2672 59 122 0 2784 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11640

[startup+3.10158 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 21592
/proc/meminfo: memFree=1636784/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=19172 CPUtime=3.09
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 5298 0 0 0 306 3 0 0 25 0 1 0 368306821 19632128 4533 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 4793 4533 59 122 0 4667 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 19172

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

[startup+4.70174 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 21592
/proc/meminfo: memFree=1630256/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=22776 CPUtime=4.69
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 6197 0 0 0 466 3 0 0 25 0 1 0 368306821 23322624 5432 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 5694 5432 59 122 0 5568 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 22776

[startup+5.10179 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 21592
/proc/meminfo: memFree=1630256/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=23708 CPUtime=5.09
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 6552 0 0 0 505 4 0 0 25 0 1 0 368306821 24276992 5685 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134534734 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 5927 5685 67 122 0 5801 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 23708

[startup+5.50583 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 21592
/proc/meminfo: memFree=1627888/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=23708 CPUtime=5.5
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 6552 0 0 0 546 4 0 0 25 0 1 0 368306821 24276992 5685 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519261 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/statm: 5927 5685 67 122 0 5801 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 23708

[startup+5.60184 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 21592
/proc/meminfo: memFree=1627888/2055920 swapFree=4153164/4192956
[pid=21591] ppid=21589 vsize=23708 CPUtime=5.59
/proc/21591/stat : 21591 (mxc) R 21589 21591 20714 0 -1 4194304 6552 0 0 0 555 4 0 0 25 0 1 0 368306821 24276992 5685 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134529873 0 0 4096 0 0 0 0 17 1 0 0
/proc/21591/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): 5.68427
CPU time (s): 5.66914
CPU user time (s): 5.62115
CPU system time (s): 0.047992
CPU usage (%): 99.7337
Max. virtual memory (cumulated for all children) (KiB): 24108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.62115
system time used= 0.047992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6554
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= 12
involuntary context switches= 122

runsolver used 0.013997 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Fri Mar  9 23:38:39 UTC 2007

IDJOB= 332605
IDBENCH= 24584
IDSOLVER= 107
FILE ID= node2/332605-1173483518

PBS_JOBID= 4101086

Free space on /tmp= 66508 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/332605-1173483518/mxc /tmp/evaluation/332605-1173483518/instance-332605-1173483518.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-332605-1173483518 -o ROOT/results/node2/solver-332605-1173483518 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332605-1173483518/mxc /tmp/evaluation/332605-1173483518/instance-332605-1173483518.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  29cf0f53dfca3fe2e94789628bed3971

RANDOM SEED= 147245016

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:       1651280 kB
Buffers:         39840 kB
Cached:         287904 kB
SwapCached:       2328 kB
Active:         182892 kB
Inactive:       167684 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1651280 kB
SwapTotal:     4192956 kB
SwapFree:      4153164 kB
Dirty:            3732 kB
Writeback:           0 kB
Mapped:          30304 kB
Slab:            39556 kB
Committed_AS:  1608888 kB
PageTables:       1812 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= 66508 MiB

End job on node2 on Fri Mar  9 23:38:44 UTC 2007