Trace number 312258

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 29.1886 29.2089

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1386858597-08-SAT.cnf
MD5SUMd278f0ab23fc6647da28c17830cf2da7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.261959
Satisfiable
(Un)Satisfiability was proved
Number of variables1665
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

29.18/29.20	c MXC attempting /tmp/evaluation/312258-1172584375/instance-312258-1172584375.cnf
29.18/29.20	c 0 assignments made, starting to guess now
29.18/29.20	c ===================================[MXC]=====================================
29.18/29.20	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
29.18/29.20	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
29.18/29.20	c =============================================================================
29.18/29.20	c |         0 |    4142    12426 |    1380       0       0     nan |  0.000 % |
29.18/29.20	c |       100 |    4142    12426 |    1518     100    1774    17.7 |  0.000 % |
29.18/29.20	c |       250 |    4136    12408 |    1669     243    4776    19.7 |  0.060 % |
29.18/29.20	c |       475 |    4136    12408 |    1836     468    9541    20.4 |  0.060 % |
29.18/29.20	c |       813 |    4136    12408 |    2020     805   18047    22.4 |  0.060 % |
29.18/29.20	c |      1321 |    4136    12408 |    2222    1311   29792    22.7 |  0.060 % |
29.18/29.20	c |      2082 |    4136    12408 |    2444    2072   46356    22.4 |  0.060 % |
29.18/29.20	c |      3221 |    4136    12408 |    2689    1988   47347    23.8 |  0.060 % |
29.18/29.20	c |      4931 |    4136    12408 |    2958    2349   53685    22.9 |  0.060 % |
29.18/29.20	c |      7493 |    4136    12408 |    3253    1950   40931    21.0 |  0.060 % |
29.18/29.20	c |     11339 |    4136    12408 |    3579    2542   58686    23.1 |  0.060 % |
29.18/29.20	c |     17105 |    4136    12408 |    3937    2937   66591    22.7 |  0.060 % |
29.18/29.20	c |     25755 |    4136    12408 |    4331    3721   80947    21.8 |  0.060 % |
29.18/29.20	c |     38729 |    4136    12408 |    4764    3708   89408    24.1 |  0.060 % |
29.18/29.20	c |     58191 |    4136    12408 |    5240    4141  112858    27.3 |  0.060 % |
29.18/29.20	c |     87384 |    4136    12408 |    5764    4518   99598    22.0 |  0.060 % |
29.18/29.20	c |    131174 |    4136    12408 |    6341    5106  110253    21.6 |  0.060 % |
29.18/29.20	c |    196858 |    4136    12408 |    6975    4250   90546    21.3 |  0.060 % |
29.18/29.20	c 29.180s elapsed
29.18/29.20	c restarts: 17
29.18/29.20	c decisions: 298707
29.18/29.20	c propagations: 49956242
29.18/29.20	c conflicts: 242300
29.18/29.20	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node22/watcher-312258-1172584375 -o ROOT/results/node22/solver-312258-1172584375 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312258-1172584375/mxc /tmp/evaluation/312258-1172584375/instance-312258-1172584375.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.95 0.99 0.99 3/77 30491
/proc/meminfo: memFree=1044936/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=1352 CPUtime=0
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 188 0 0 0 0 0 0 0 18 0 1 0 278391412 1384448 172 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134533374 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 338 172 47 122 0 212 0

[startup+0.1073 s]
/proc/loadavg: 0.95 0.99 0.99 3/77 30491
/proc/meminfo: memFree=1044936/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=1484 CPUtime=0.1
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 228 0 0 0 10 0 0 0 18 0 1 0 278391412 1519616 212 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530053 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 371 212 59 122 0 245 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1484

[startup+0.51533 s]
/proc/loadavg: 0.95 0.99 0.99 3/77 30491
/proc/meminfo: memFree=1044936/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=1768 CPUtime=0.51
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 308 0 0 0 51 0 0 0 21 0 1 0 278391412 1810432 290 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519297 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 442 290 67 122 0 316 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1768

[startup+1.33539 s]
/proc/loadavg: 0.96 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1043904/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=1900 CPUtime=1.33
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 345 0 0 0 133 0 0 0 25 0 1 0 278391412 1945600 327 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530272 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 475 327 67 122 0 349 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1900

[startup+2.97751 s]
/proc/loadavg: 0.96 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1043584/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=2024 CPUtime=2.97
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 393 0 0 0 297 0 0 0 25 0 1 0 278391412 2072576 375 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519232 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 506 375 67 122 0 380 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2024

[startup+6.25375 s]
/proc/loadavg: 0.96 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1043144/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=2408 CPUtime=6.24
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 474 0 0 0 624 0 0 0 25 0 1 0 278391412 2465792 456 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134528451 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 602 456 67 122 0 476 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2408

[startup+12.7082 s]
/proc/loadavg: 0.96 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1042960/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=2656 CPUtime=12.7
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 527 0 0 0 1270 0 0 0 25 0 1 0 278391412 2719744 509 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 664 509 67 122 0 538 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 2656

[startup+25.5102 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1042640/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=3028 CPUtime=25.49
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 634 0 0 0 2549 0 0 0 25 0 1 0 278391412 3100672 616 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 757 616 67 122 0 631 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3028

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

[startup+26.2292 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1042512/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=3144 CPUtime=26.21
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 649 0 0 0 2621 0 0 0 25 0 1 0 278391412 3219456 631 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134531514 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 786 631 67 122 0 660 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 3144

[startup+27.8653 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1042448/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=3140 CPUtime=27.85
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 649 0 0 0 2785 0 0 0 25 0 1 0 278391412 3215360 631 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134529751 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 785 631 67 122 0 659 0
Current children cumulated CPU time (s) 27.85
Current children cumulated vsize (KiB) 3140

[startup+28.6894 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1042448/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=3140 CPUtime=28.67
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 649 0 0 0 2867 0 0 0 25 0 1 0 278391412 3215360 631 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 785 631 67 122 0 659 0
Current children cumulated CPU time (s) 28.67
Current children cumulated vsize (KiB) 3140

[startup+29.0984 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1042448/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=3140 CPUtime=29.08
/proc/30491/stat : 30491 (mxc) R 30489 30491 29897 0 -1 4194304 650 0 0 0 2908 0 0 0 25 0 1 0 278391412 3215360 632 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 785 632 67 122 0 659 0
Current children cumulated CPU time (s) 29.08
Current children cumulated vsize (KiB) 3140

[startup+29.2004 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 30492
/proc/meminfo: memFree=1042448/2055920 swapFree=4143328/4192956
[pid=30491] ppid=30489 vsize=3140 CPUtime=29.18
/proc/30491/stat : 30491 (mxc) S 30489 30491 29897 0 -1 4194304 650 0 0 0 2918 0 0 0 25 0 1 0 278391412 3215360 632 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/30491/statm: 785 632 67 122 0 659 0
Current children cumulated CPU time (s) 29.18
Current children cumulated vsize (KiB) 3140

Child status: 10
Real time (s): 29.2089
CPU time (s): 29.1886
CPU user time (s): 29.1806
CPU system time (s): 0.007998
CPU usage (%): 99.9304
Max. virtual memory (cumulated for all children) (KiB): 3144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.1806
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 652
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= 53

runsolver used 0.029995 second user time and 0.076988 second system time

The end

Launcher Data (download as text)

Begin job on node22 on Tue Feb 27 13:52:55 UTC 2007

IDJOB= 312258
IDBENCH= 20337
IDSOLVER= 107
FILE ID= node22/312258-1172584375

PBS_JOBID= 3971923

Free space on /tmp= 66560 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1386858597-08-SAT.cnf
COMMAND LINE= /tmp/evaluation/312258-1172584375/mxc /tmp/evaluation/312258-1172584375/instance-312258-1172584375.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-312258-1172584375 -o ROOT/results/node22/solver-312258-1172584375 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312258-1172584375/mxc /tmp/evaluation/312258-1172584375/instance-312258-1172584375.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  d278f0ab23fc6647da28c17830cf2da7

RANDOM SEED= 613063528

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node22.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		: 3000.235
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		: 3000.235
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:       1045280 kB
Buffers:         37184 kB
Cached:         904320 kB
SwapCached:      16208 kB
Active:         117388 kB
Inactive:       848992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1045280 kB
SwapTotal:     4192956 kB
SwapFree:      4143328 kB
Dirty:             824 kB
Writeback:           0 kB
Mapped:          29912 kB
Slab:            29816 kB
Committed_AS:   729512 kB
PageTables:       1692 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= 66560 MiB

End job on node22 on Tue Feb 27 13:53:24 UTC 2007